diff options
Diffstat (limited to 'html/subx')
41 files changed, 3614 insertions, 2890 deletions
diff --git a/html/subx/001help.cc.html b/html/subx/001help.cc.html index aed0d399..63ed444d 100644 --- a/html/subx/001help.cc.html +++ b/html/subx/001help.cc.html @@ -133,13 +133,13 @@ if ('onhashchange' in window) { <span id="L73" class="LineNr"> 73 </span> <span class="Constant">" subx --help</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L74" class="LineNr"> 74 </span> <span class="Constant">"- Convert a textual SubX <a href='011run.cc.html#L99'>program</a> into a standard ELF binary that you can</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L75" class="LineNr"> 75 </span> <span class="Constant">" <a href='011run.cc.html#L83'>run</a> on your computer:</span><span class="cSpecial">\n</span><span class="Constant">"</span> -<span id="L76" class="LineNr"> 76 </span> <span class="Constant">" subx translate <input 'source' file> <output ELF binary></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Constant">" subx translate input1.subx intput2.subx ... -o <output ELF binary></span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L77" class="LineNr"> 77 </span> <span class="Constant">"- Run a SubX binary using SubX itself (for better error messages):</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L78" class="LineNr"> 78 </span> <span class="Constant">" subx <a href='011run.cc.html#L83'>run</a> <ELF binary></span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L79" class="LineNr"> 79 </span> <span class="Constant">"Add '--trace' to any of these commands to also emit a <a href='003trace.cc.html#L204'>trace</a>, for debugging purposes.</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L80" class="LineNr"> 80 </span> <span class="Constant">"However, options starting with '--' must always come before any other arguments.</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L81" class="LineNr"> 81 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> -<span id="L82" class="LineNr"> 82 </span> <span class="Constant">"To <a href='011run.cc.html#L108'>start</a> learning how to write SubX programs, <a href='011run.cc.html#L83'>run</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Constant">"To start learning how to write SubX programs, <a href='011run.cc.html#L83'>run</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L83" class="LineNr"> 83 </span> <span class="Constant">" subx help</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">);</span> <span id="L85" class="LineNr"> 85 </span> <span class="Comment">// End Help Texts</span> @@ -152,9 +152,9 @@ if ('onhashchange' in window) { <span id="L92" class="LineNr"> 92 </span> <span id="L93" class="LineNr"> 93 </span><span class="Normal">bool</span> <a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">,</span> <span class="Normal">const</span> string& pat<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L94" class="LineNr"> 94 </span> string::const_iterator a=s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> b=pat<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> -<span id="L95" class="LineNr"> 95 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">nada</span><span class="Comment">*/</span><span class="Delimiter">;</span> a!=s<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">()</span> && b!=pat<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++a<span class="Delimiter">,</span> ++b<span class="Delimiter">)</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">nada</span><span class="Comment">*/</span><span class="Delimiter">;</span> a!=s<span class="Delimiter">.</span>end<span class="Delimiter">()</span> && b!=pat<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++a<span class="Delimiter">,</span> ++b<span class="Delimiter">)</span> <span id="L96" class="LineNr"> 96 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*a != *b<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L97" class="LineNr"> 97 </span> <span class="Identifier">return</span> b == pat<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Identifier">return</span> b == pat<span class="Delimiter">.</span>end<span class="Delimiter">();</span> <span id="L98" class="LineNr"> 98 </span><span class="Delimiter">}</span> <span id="L99" class="LineNr"> 99 </span> <span id="L100" class="LineNr">100 </span><span class="Comment">//: I'll throw some style conventions here for want of a better place for them.</span> @@ -206,7 +206,7 @@ if ('onhashchange' in window) { <span id="L146" class="LineNr">146 </span><span class="Comment">//: yadda-yadda. Instead use this macro below to perform an unsafe cast to</span> <span id="L147" class="LineNr">147 </span><span class="Comment">//: signed. We'll just give up immediately if a container's ever too large.</span> <span id="L148" class="LineNr">148 </span><span class="Comment">//: Basically, Mu is not concerned about this being a little slower than it</span> -<span id="L149" class="LineNr">149 </span><span class="Comment">//: could be. (<a href="https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7">https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7)</a></span> +<span id="L149" class="LineNr">149 </span><span class="Comment">//: could be. (<a href="https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7">https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7</a>)</span> <span id="L150" class="LineNr">150 </span><span class="Comment">//:</span> <span id="L151" class="LineNr">151 </span><span class="Comment">//: Addendum to corollary: We're going to uniformly use int everywhere, to</span> <span id="L152" class="LineNr">152 </span><span class="Comment">//: indicate that we're oblivious to number size, and since Clang on 32-bit</span> @@ -286,17 +286,17 @@ if ('onhashchange' in window) { <span id="L226" class="LineNr">226 </span><span class="Comment">// from <a href="http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map">http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map</a></span> <span id="L227" class="LineNr">227 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type& get<span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L228" class="LineNr">228 </span> <span class="Normal">typename</span> T::iterator iter<span class="Delimiter">(</span>map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">));</span> -<span id="L229" class="LineNr">229 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>iter == map<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L229" class="LineNr">229 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>iter == map<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span> <span id="L230" class="LineNr">230 </span> cerr << <span class="Constant">"get couldn't find key '"</span> << key << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L231" class="LineNr">231 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">());</span> +<span id="L231" class="LineNr">231 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span>end<span class="Delimiter">());</span> <span id="L232" class="LineNr">232 </span> <span class="Delimiter">}</span> <span id="L233" class="LineNr">233 </span> <span class="Identifier">return</span> iter<span class="Delimiter">-></span>second<span class="Delimiter">;</span> <span id="L234" class="LineNr">234 </span><span class="Delimiter">}</span> <span id="L235" class="LineNr">235 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& get<span class="Delimiter">(</span><span class="Normal">const</span> T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L236" class="LineNr">236 </span> <span class="Normal">typename</span> T::const_iterator iter<span class="Delimiter">(</span>map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">));</span> -<span id="L237" class="LineNr">237 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>iter == map<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L237" class="LineNr">237 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>iter == map<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span> <span id="L238" class="LineNr">238 </span> cerr << <span class="Constant">"get couldn't find key '"</span> << key << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L239" class="LineNr">239 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">());</span> +<span id="L239" class="LineNr">239 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span>end<span class="Delimiter">());</span> <span id="L240" class="LineNr">240 </span> <span class="Delimiter">}</span> <span id="L241" class="LineNr">241 </span> <span class="Identifier">return</span> iter<span class="Delimiter">-></span>second<span class="Delimiter">;</span> <span id="L242" class="LineNr">242 </span><span class="Delimiter">}</span> @@ -305,7 +305,7 @@ if ('onhashchange' in window) { <span id="L245" class="LineNr">245 </span> <span class="Identifier">return</span> map[key]<span class="Delimiter">;</span> <span id="L246" class="LineNr">246 </span><span class="Delimiter">}</span> <span id="L247" class="LineNr">247 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">bool</span> <a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L248" class="LineNr">248 </span> <span class="Identifier">return</span> map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">)</span> != map<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L248" class="LineNr">248 </span> <span class="Identifier">return</span> map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">)</span> != map<span class="Delimiter">.</span>end<span class="Delimiter">();</span> <span id="L249" class="LineNr">249 </span><span class="Delimiter">}</span> <span id="L250" class="LineNr">250 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type& <a href='001help.cc.html#L250'>get_or_insert</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L251" class="LineNr">251 </span> <span class="Identifier">return</span> map[key]<span class="Delimiter">;</span> diff --git a/html/subx/003trace.cc.html b/html/subx/003trace.cc.html index 25ba9b61..fb544db8 100644 --- a/html/subx/003trace.cc.html +++ b/html/subx/003trace.cc.html @@ -223,7 +223,7 @@ if ('onhashchange' in window) { <span id="L164" class="LineNr">164 </span>string trace_stream::<a href='003trace.cc.html#L164'>readable_contents</a><span class="Delimiter">(</span>string label<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L165" class="LineNr">165 </span> ostringstream output<span class="Delimiter">;</span> <span id="L166" class="LineNr">166 </span> label = <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span>label<span class="Delimiter">);</span> -<span id="L167" class="LineNr">167 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L167" class="LineNr">167 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span id="L168" class="LineNr">168 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>label<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || label == p<span class="Delimiter">-></span>label<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L169" class="LineNr">169 </span> output << std::setw<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">)</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L72'>depth</a> << <span class="Constant">' '</span> << p<span class="Delimiter">-></span>label << <span class="Constant">": "</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span id="L170" class="LineNr">170 </span> <span class="Delimiter">}</span> @@ -286,9 +286,9 @@ if ('onhashchange' in window) { <span id="L227" class="LineNr">227 </span><span class="Delimiter">}</span> <span id="L228" class="LineNr">228 </span> <span id="L229" class="LineNr">229 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L230" class="LineNr">230 </span><span class="Normal">struct</span> <a href='003trace.cc.html#L230'>end</a> <span class="Delimiter">{};</span> +<span id="L230" class="LineNr">230 </span><span class="Normal">struct</span> end <span class="Delimiter">{};</span> <span id="L231" class="LineNr">231 </span><span class="Delimiter">:(code)</span> -<span id="L232" class="LineNr">232 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> <a href='003trace.cc.html#L230'>end</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L232" class="LineNr">232 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> end <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L233" class="LineNr">233 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L147'>newline</a><span class="Delimiter">();</span> <span id="L234" class="LineNr">234 </span> <span class="Identifier">return</span> os<span class="Delimiter">;</span> <span id="L235" class="LineNr">235 </span><span class="Delimiter">}</span> @@ -347,7 +347,7 @@ if ('onhashchange' in window) { <span id="L288" class="LineNr">288 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_expected_line == <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L289" class="LineNr">289 </span> string label<span class="Delimiter">,</span> <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">;</span> <span id="L290" class="LineNr">290 </span> <a href='003trace.cc.html#L313'>split_label_contents</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &label<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span> -<span id="L291" class="LineNr">291 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L291" class="LineNr">291 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L292" class="LineNr">292 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>label != p<span class="Delimiter">-></span>label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L293" class="LineNr">293 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L74'>contents</a> != <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L294" class="LineNr">294 </span> ++curr_expected_line<span class="Delimiter">;</span> @@ -383,7 +383,7 @@ if ('onhashchange' in window) { <span id="L324" class="LineNr">324 </span><span class="Delimiter">}</span> <span id="L325" class="LineNr">325 </span> <span id="L326" class="LineNr">326 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L326'>line_exists_anywhere</a><span class="Delimiter">(</span><span class="Normal">const</span> string& label<span class="Delimiter">,</span> <span class="Normal">const</span> string& <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L327" class="LineNr">327 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L327" class="LineNr">327 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L328" class="LineNr">328 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>label != p<span class="Delimiter">-></span>label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L329" class="LineNr">329 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L74'>contents</a> == <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L330" class="LineNr">330 </span> <span class="Delimiter">}</span> @@ -397,7 +397,7 @@ if ('onhashchange' in window) { <span id="L338" class="LineNr">338 </span><span class="Normal">int</span> trace_count<span class="Delimiter">(</span>string label<span class="Delimiter">,</span> string <a href='011run.cc.html#L117'>line</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L339" class="LineNr">339 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L340" class="LineNr">340 </span> <span class="Normal">long</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L341" class="LineNr">341 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L341" class="LineNr">341 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L342" class="LineNr">342 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>label == p<span class="Delimiter">-></span>label<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L343" class="LineNr">343 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L117'>line</a> == <span class="Constant">""</span> || <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span><a href='011run.cc.html#L117'>line</a><span class="Delimiter">)</span> == <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span id="L344" class="LineNr">344 </span> ++result<span class="Delimiter">;</span> @@ -409,7 +409,7 @@ if ('onhashchange' in window) { <span id="L350" class="LineNr">350 </span><span class="Normal">int</span> <a href='003trace.cc.html#L350'>trace_count_prefix</a><span class="Delimiter">(</span>string label<span class="Delimiter">,</span> string prefix<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L351" class="LineNr">351 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L352" class="LineNr">352 </span> <span class="Normal">long</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L353" class="LineNr">353 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L353" class="LineNr">353 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L110'>past_lines</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L354" class="LineNr">354 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>label == p<span class="Delimiter">-></span>label<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L355" class="LineNr">355 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span><a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">),</span> <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span>prefix<span class="Delimiter">)))</span> <span id="L356" class="LineNr">356 </span> ++result<span class="Delimiter">;</span> @@ -425,7 +425,7 @@ if ('onhashchange' in window) { <span id="L366" class="LineNr">366 </span><span class="Normal">bool</span> trace_doesnt_contain<span class="Delimiter">(</span>string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L367" class="LineNr">367 </span> vector<string> tmp = <a href='003trace.cc.html#L390'>split_first</a><span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">": "</span><span class="Delimiter">);</span> <span id="L368" class="LineNr">368 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>tmp<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L369" class="LineNr">369 </span> <a href='003trace.cc.html#L211'>raise</a> << expected << <span class="Constant">": missing label or <a href='003trace.cc.html#L74'>contents</a> in <a href='003trace.cc.html#L204'>trace</a> <a href='011run.cc.html#L117'>line</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L369" class="LineNr">369 </span> <a href='003trace.cc.html#L211'>raise</a> << expected << <span class="Constant">": missing label or <a href='003trace.cc.html#L74'>contents</a> in <a href='003trace.cc.html#L204'>trace</a> <a href='011run.cc.html#L117'>line</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L370" class="LineNr">370 </span> assert<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span> <span id="L371" class="LineNr">371 </span> <span class="Delimiter">}</span> <span id="L372" class="LineNr">372 </span> <span class="Identifier">return</span> trace_doesnt_contain<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> @@ -435,13 +435,13 @@ if ('onhashchange' in window) { <span id="L376" class="LineNr">376 </span> vector<string> result<span class="Delimiter">;</span> <span id="L377" class="LineNr">377 </span> <span class="Normal">size_t</span> begin=<span class="Constant">0</span><span class="Delimiter">,</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> <span id="L378" class="LineNr">378 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L379" class="LineNr">379 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L230'>end</a> == string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L379" class="LineNr">379 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>end == string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L380" class="LineNr">380 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> string::npos<span class="Delimiter">));</span> <span id="L381" class="LineNr">381 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L382" class="LineNr">382 </span> <span class="Delimiter">}</span> <span id="L383" class="LineNr">383 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> end-begin<span class="Delimiter">));</span> <span id="L384" class="LineNr">384 </span> begin = end+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> -<span id="L385" class="LineNr">385 </span> <a href='003trace.cc.html#L230'>end</a> = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">,</span> begin<span class="Delimiter">);</span> +<span id="L385" class="LineNr">385 </span> end = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">,</span> begin<span class="Delimiter">);</span> <span id="L386" class="LineNr">386 </span> <span class="Delimiter">}</span> <span id="L387" class="LineNr">387 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L388" class="LineNr">388 </span><span class="Delimiter">}</span> @@ -449,19 +449,19 @@ if ('onhashchange' in window) { <span id="L390" class="LineNr">390 </span>vector<string> <a href='003trace.cc.html#L390'>split_first</a><span class="Delimiter">(</span>string s<span class="Delimiter">,</span> string delim<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L391" class="LineNr">391 </span> vector<string> result<span class="Delimiter">;</span> <span id="L392" class="LineNr">392 </span> <span class="Normal">size_t</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> -<span id="L393" class="LineNr">393 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">));</span> -<span id="L394" class="LineNr">394 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L230'>end</a> != string::npos<span class="Delimiter">)</span> +<span id="L393" class="LineNr">393 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> end<span class="Delimiter">));</span> +<span id="L394" class="LineNr">394 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>end != string::npos<span class="Delimiter">)</span> <span id="L395" class="LineNr">395 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> end+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">),</span> string::npos<span class="Delimiter">));</span> <span id="L396" class="LineNr">396 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L397" class="LineNr">397 </span><span class="Delimiter">}</span> <span id="L398" class="LineNr">398 </span> <span id="L399" class="LineNr">399 </span>string <a href='003trace.cc.html#L399'>trim</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L400" class="LineNr">400 </span> string::const_iterator first = s<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> -<span id="L401" class="LineNr">401 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>first != s<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*first<span class="Delimiter">))</span> +<span id="L401" class="LineNr">401 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>first != s<span class="Delimiter">.</span>end<span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*first<span class="Delimiter">))</span> <span id="L402" class="LineNr">402 </span> ++first<span class="Delimiter">;</span> -<span id="L403" class="LineNr">403 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>first == s<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L403" class="LineNr">403 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>first == s<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> <span id="L404" class="LineNr">404 </span> -<span id="L405" class="LineNr">405 </span> string::const_iterator last = --s<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L405" class="LineNr">405 </span> string::const_iterator last = --s<span class="Delimiter">.</span>end<span class="Delimiter">();</span> <span id="L406" class="LineNr">406 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>last != s<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*last<span class="Delimiter">))</span> <span id="L407" class="LineNr">407 </span> --last<span class="Delimiter">;</span> <span id="L408" class="LineNr">408 </span> ++last<span class="Delimiter">;</span> diff --git a/html/subx/003trace.test.cc.html b/html/subx/003trace.test.cc.html index 7315ab55..9a2d980c 100644 --- a/html/subx/003trace.test.cc.html +++ b/html/subx/003trace.test.cc.html @@ -57,66 +57,66 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L1'>test_trace_check_compares</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L2" class="LineNr"> 2 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L2" class="LineNr"> 2 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> <span id="L3" class="LineNr"> 3 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer: foo"</span><span class="Delimiter">);</span> <span id="L4" class="LineNr"> 4 </span><span class="Delimiter">}</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L6'>test_trace_check_ignores_other_layers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L7" class="LineNr"> 7 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L8" class="LineNr"> 8 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L7" class="LineNr"> 7 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> +<span id="L8" class="LineNr"> 8 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << end<span class="Delimiter">();</span> <span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L10" class="LineNr"> 10 </span> <a href='003trace.cc.html#L278'>CHECK_TRACE_DOESNT_CONTAIN</a><span class="Delimiter">(</span><span class="Constant">"test layer 2: foo"</span><span class="Delimiter">);</span> <span id="L11" class="LineNr"> 11 </span><span class="Delimiter">}</span> <span id="L12" class="LineNr"> 12 </span> <span id="L13" class="LineNr"> 13 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L13'>test_trace_check_ignores_leading_whitespace</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L14" class="LineNr"> 14 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">" foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L14" class="LineNr"> 14 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">" foo"</span> << end<span class="Delimiter">();</span> <span id="L15" class="LineNr"> 15 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">too little whitespace</span><span class="Comment">*/</span><span class="Constant">"foo"</span><span class="Delimiter">),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L16" class="LineNr"> 16 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">too much whitespace</span><span class="Comment">*/</span><span class="Constant">" foo"</span><span class="Delimiter">),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L17" class="LineNr"> 17 </span><span class="Delimiter">}</span> <span id="L18" class="LineNr"> 18 </span> <span id="L19" class="LineNr"> 19 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L19'>test_trace_check_ignores_other_lines</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << end<span class="Delimiter">();</span> <span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L23" class="LineNr"> 23 </span><span class="Delimiter">}</span> <span id="L24" class="LineNr"> 24 </span> <span id="L25" class="LineNr"> 25 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L25'>test_trace_check_ignores_other_lines2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L26" class="LineNr"> 26 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L26" class="LineNr"> 26 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> +<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << end<span class="Delimiter">();</span> <span id="L28" class="LineNr"> 28 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: bar"</span><span class="Delimiter">);</span> <span id="L29" class="LineNr"> 29 </span><span class="Delimiter">}</span> <span id="L30" class="LineNr"> 30 </span> <span id="L31" class="LineNr"> 31 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L31'>test_trace_ignores_trailing_whitespace</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L33" class="LineNr"> 33 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L34" class="LineNr"> 34 </span><span class="Delimiter">}</span> <span id="L35" class="LineNr"> 35 </span> <span id="L36" class="LineNr"> 36 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L36'>test_trace_ignores_trailing_whitespace2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo "</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo "</span> << end<span class="Delimiter">();</span> <span id="L38" class="LineNr"> 38 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L39" class="LineNr"> 39 </span><span class="Delimiter">}</span> <span id="L40" class="LineNr"> 40 </span> <span id="L41" class="LineNr"> 41 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L41'>test_trace_orders_across_layers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"qux"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> +<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << end<span class="Delimiter">();</span> +<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"qux"</span> << end<span class="Delimiter">();</span> <span id="L45" class="LineNr"> 45 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo^Dtest layer 2: bar^Dtest layer 1: qux^D"</span><span class="Delimiter">);</span> <span id="L46" class="LineNr"> 46 </span><span class="Delimiter">}</span> <span id="L47" class="LineNr"> 47 </span> <span id="L48" class="LineNr"> 48 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L48'>test_trace_supports_count</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> <span id="L51" class="LineNr"> 51 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Constant">"foo"</span><span class="Delimiter">),</span> <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L52" class="LineNr"> 52 </span><span class="Delimiter">}</span> <span id="L53" class="LineNr"> 53 </span> <span id="L54" class="LineNr"> 54 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L54'>test_trace_supports_count2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << end<span class="Delimiter">();</span> +<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << end<span class="Delimiter">();</span> <span id="L57" class="LineNr"> 57 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">),</span> <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span> <span id="L59" class="LineNr"> 59 </span> <span id="L60" class="LineNr"> 60 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L60'>test_trace_count_ignores_trailing_whitespace</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L61" class="LineNr"> 61 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L61" class="LineNr"> 61 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L62" class="LineNr"> 62 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Constant">"foo"</span><span class="Delimiter">),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span> <span id="L64" class="LineNr"> 64 </span> diff --git a/html/subx/010---vm.cc.html b/html/subx/010---vm.cc.html index 86ac7aec..ad6efb36 100644 --- a/html/subx/010---vm.cc.html +++ b/html/subx/010---vm.cc.html @@ -131,7 +131,7 @@ if ('onhashchange' in window) { <span id="L70" class="LineNr"> 70 </span> <span class="Comment">/*</span><span class="Comment"> arg1 and arg2 must be signed </span><span class="Comment">*/</span> \ <span id="L71" class="LineNr"> 71 </span> <span class="Normal">int64_t</span> tmp = arg1 op arg2<span class="Delimiter">;</span> \ <span id="L72" class="LineNr"> 72 </span> arg1 = arg1 op arg2<span class="Delimiter">;</span> \ -<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg1 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> \ +<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg1 << end<span class="Delimiter">();</span> \ <span id="L74" class="LineNr"> 74 </span> SF = <span class="Delimiter">(</span>arg1 < <span class="Constant">0</span><span class="Delimiter">);</span> \ <span id="L75" class="LineNr"> 75 </span> ZF = <span class="Delimiter">(</span>arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> \ <span id="L76" class="LineNr"> 76 </span> <a href='010---vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>arg1 != tmp<span class="Delimiter">);</span> \ @@ -142,7 +142,7 @@ if ('onhashchange' in window) { <span id="L81" class="LineNr"> 81 </span><span class="Comment">#define BINARY_BITWISE_OP(op, arg1, arg2) { \</span> <span id="L82" class="LineNr"> 82 </span> <span class="Comment">/*</span><span class="Comment"> arg1 and arg2 must be unsigned </span><span class="Comment">*/</span> \ <span id="L83" class="LineNr"> 83 </span> arg1 = arg1 op arg2<span class="Delimiter">;</span> \ -<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg1 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> \ +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg1 << end<span class="Delimiter">();</span> \ <span id="L85" class="LineNr"> 85 </span> SF = <span class="Delimiter">(</span>arg1 >> <span class="Constant">31</span><span class="Delimiter">);</span> \ <span id="L86" class="LineNr"> 86 </span> ZF = <span class="Delimiter">(</span>arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> \ <span id="L87" class="LineNr"> 87 </span> <a href='010---vm.cc.html#L59'>OF</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> \ @@ -150,178 +150,286 @@ if ('onhashchange' in window) { <span id="L89" class="LineNr"> 89 </span> <span id="L90" class="LineNr"> 90 </span><span class="SalientComment">//:: simulated RAM</span> <span id="L91" class="LineNr"> 91 </span> -<span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L93" class="LineNr"> 93 </span>vector<<span class="Normal">uint8_t</span>> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">;</span> -<span id="L94" class="LineNr"> 94 </span><span class="Normal">uint32_t</span> Mem_offset = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L95" class="LineNr"> 95 </span><span class="Normal">uint32_t</span> <a href='010---vm.cc.html#L95'>End_of_program</a> = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">:(before "End Reset")</span> -<span id="L97" class="LineNr"> 97 </span><a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> -<span id="L98" class="LineNr"> 98 </span><a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1024</span><span class="Delimiter">);</span> -<span id="L99" class="LineNr"> 99 </span>Mem_offset = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L100" class="LineNr">100 </span><a href='010---vm.cc.html#L95'>End_of_program</a> = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L101" class="LineNr">101 </span><span class="Delimiter">:(code)</span> -<span id="L102" class="LineNr">102 </span><span class="Comment">// These helpers depend on Mem being laid out contiguously (so you can't use a</span> -<span id="L103" class="LineNr">103 </span><span class="Comment">// map, etc.) and on the host also being little-endian.</span> -<span id="L104" class="LineNr">104 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L104'>read_mem_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L105" class="LineNr">105 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">);</span> -<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span> -<span id="L107" class="LineNr">107 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span> <a href='010---vm.cc.html#L107'>read_mem_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L108" class="LineNr">108 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int8_t</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L109" class="LineNr">109 </span><span class="Delimiter">}</span> -<span id="L110" class="LineNr">110 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='010---vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L111" class="LineNr">111 </span> <span class="Identifier">return</span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L112" class="LineNr">112 </span><span class="Delimiter">}</span> -<span id="L113" class="LineNr">113 </span><span class="Normal">inline</span> <span class="Normal">int32_t</span> <a href='010---vm.cc.html#L113'>read_mem_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L114" class="LineNr">114 </span> <span class="Identifier">return</span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L115" class="LineNr">115 </span><span class="Delimiter">}</span> -<span id="L116" class="LineNr">116 </span> -<span id="L117" class="LineNr">117 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span>* <a href='010---vm.cc.html#L117'>mem_addr_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L118" class="LineNr">118 </span> <span class="Identifier">return</span> &Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">);</span> -<span id="L119" class="LineNr">119 </span><span class="Delimiter">}</span> -<span id="L120" class="LineNr">120 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span>* <a href='010---vm.cc.html#L120'>mem_addr_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L121" class="LineNr">121 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">int8_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span> -<span id="L123" class="LineNr">123 </span><span class="Normal">inline</span> <span class="Normal">char</span>* <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L124" class="LineNr">124 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">char</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L125" class="LineNr">125 </span><span class="Delimiter">}</span> -<span id="L126" class="LineNr">126 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span>* <a href='010---vm.cc.html#L126'>mem_addr_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L127" class="LineNr">127 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span> -<span id="L129" class="LineNr">129 </span><span class="Normal">inline</span> <span class="Normal">int32_t</span>* <a href='010---vm.cc.html#L129'>mem_addr_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L130" class="LineNr">130 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> -<span id="L131" class="LineNr">131 </span><span class="Delimiter">}</span> -<span id="L132" class="LineNr">132 </span> -<span id="L133" class="LineNr">133 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L133'>write_mem_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L134" class="LineNr">134 </span> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">)</span> = val<span class="Delimiter">;</span> -<span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span> -<span id="L136" class="LineNr">136 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L136'>write_mem_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">int8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L137" class="LineNr">137 </span> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">)</span> = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>><span class="Delimiter">(</span>val<span class="Delimiter">);</span> -<span id="L138" class="LineNr">138 </span><span class="Delimiter">}</span> -<span id="L139" class="LineNr">139 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L139'>write_mem_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L140" class="LineNr">140 </span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">))</span> = val<span class="Delimiter">;</span> -<span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span> -<span id="L142" class="LineNr">142 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L142'>write_mem_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">int32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L143" class="LineNr">143 </span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">))</span> = val<span class="Delimiter">;</span> -<span id="L144" class="LineNr">144 </span><span class="Delimiter">}</span> -<span id="L145" class="LineNr">145 </span> -<span id="L146" class="LineNr">146 </span><span class="SalientComment">//:: core interpreter loop</span> -<span id="L147" class="LineNr">147 </span> -<span id="L148" class="LineNr">148 </span><span class="Delimiter">:(code)</span> -<span id="L149" class="LineNr">149 </span><span class="Comment">// skeleton of how x86 instructions are decoded</span> -<span id="L150" class="LineNr">150 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L150'>run_one_instruction</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L151" class="LineNr">151 </span> <span class="Normal">uint8_t</span> op=<span class="Constant">0</span><span class="Delimiter">,</span> op2=<span class="Constant">0</span><span class="Delimiter">,</span> op3=<span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L152" class="LineNr">152 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"inst: 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L153" class="LineNr">153 </span><span class="CommentedCode">//? dump_registers();</span> -<span id="L154" class="LineNr">154 </span><span class="CommentedCode">//? cerr << "inst: 0x" << EIP << " => ";</span> -<span id="L155" class="LineNr">155 </span> op = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L156" class="LineNr">156 </span><span class="CommentedCode">//? cerr << HEXBYTE << NUM(op) << '\n';</span> -<span id="L157" class="LineNr">157 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L158" class="LineNr">158 </span> <span class="Normal">case</span> <span class="Constant">0xf4</span>: <span class="Comment">// hlt</span> -<span id="L159" class="LineNr">159 </span> <a href='010---vm.cc.html#L29'>EIP</a> = <a href='010---vm.cc.html#L95'>End_of_program</a><span class="Delimiter">;</span> -<span id="L160" class="LineNr">160 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L161" class="LineNr">161 </span> <span class="Comment">// End Single-Byte Opcodes</span> -<span id="L162" class="LineNr">162 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: -<span id="L163" class="LineNr">163 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L164" class="LineNr">164 </span> <span class="Comment">// End Two-Byte Opcodes Starting With 0f</span> -<span id="L165" class="LineNr">165 </span> <span class="Normal">default</span>: -<span id="L166" class="LineNr">166 </span> cerr << <span class="Constant">"unrecognized second opcode after 0f: "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L167" class="LineNr">167 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L168" class="LineNr">168 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L169" class="LineNr">169 </span> <span class="Delimiter">}</span> -<span id="L170" class="LineNr">170 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L171" class="LineNr">171 </span> <span class="Normal">case</span> <span class="Constant">0xf2</span>: -<span id="L172" class="LineNr">172 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L173" class="LineNr">173 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f2</span> -<span id="L174" class="LineNr">174 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: -<span id="L175" class="LineNr">175 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L176" class="LineNr">176 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f2 0f</span> -<span id="L177" class="LineNr">177 </span> <span class="Normal">default</span>: -<span id="L178" class="LineNr">178 </span> cerr << <span class="Constant">"unrecognized third opcode after f2 0f: "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L179" class="LineNr">179 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L180" class="LineNr">180 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L181" class="LineNr">181 </span> <span class="Delimiter">}</span> -<span id="L182" class="LineNr">182 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L183" class="LineNr">183 </span> <span class="Normal">default</span>: -<span id="L184" class="LineNr">184 </span> cerr << <span class="Constant">"unrecognized second opcode after f2: "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L185" class="LineNr">185 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L186" class="LineNr">186 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L187" class="LineNr">187 </span> <span class="Delimiter">}</span> -<span id="L188" class="LineNr">188 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L189" class="LineNr">189 </span> <span class="Normal">case</span> <span class="Constant">0xf3</span>: -<span id="L190" class="LineNr">190 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L191" class="LineNr">191 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f3</span> -<span id="L192" class="LineNr">192 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: -<span id="L193" class="LineNr">193 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L194" class="LineNr">194 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f3 0f</span> -<span id="L195" class="LineNr">195 </span> <span class="Normal">default</span>: -<span id="L196" class="LineNr">196 </span> cerr << <span class="Constant">"unrecognized third opcode after f3 0f: "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L197" class="LineNr">197 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L198" class="LineNr">198 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L199" class="LineNr">199 </span> <span class="Delimiter">}</span> -<span id="L200" class="LineNr">200 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L201" class="LineNr">201 </span> <span class="Normal">default</span>: -<span id="L202" class="LineNr">202 </span> cerr << <span class="Constant">"unrecognized second opcode after f3: "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L203" class="LineNr">203 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L204" class="LineNr">204 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L205" class="LineNr">205 </span> <span class="Delimiter">}</span> -<span id="L206" class="LineNr">206 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L207" class="LineNr">207 </span> <span class="Normal">default</span>: -<span id="L208" class="LineNr">208 </span> cerr << <span class="Constant">"unrecognized opcode: "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L209" class="LineNr">209 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L210" class="LineNr">210 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L211" class="LineNr">211 </span> <span class="Delimiter">}</span> -<span id="L212" class="LineNr">212 </span><span class="Delimiter">}</span> -<span id="L213" class="LineNr">213 </span> -<span id="L214" class="LineNr">214 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L215" class="LineNr">215 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L104'>read_mem_u8</a><span class="Delimiter">(</span>EIP++<span class="Delimiter">);</span> +<span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L93" class="LineNr"> 93 </span><span class="Normal">const</span> <span class="Normal">uint32_t</span> <a href='010---vm.cc.html#L93'>INITIAL_SEGMENT_SIZE</a> = <span class="Constant">0x1000</span> - <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L94" class="LineNr"> 94 </span><span class="Comment">// Subtract one just so we can start the first segment at address 1 without</span> +<span id="L95" class="LineNr"> 95 </span><span class="Comment">// overflowing the first segment. Other segments will learn to adjust.</span> +<span id="L96" class="LineNr"> 96 </span> +<span id="L97" class="LineNr"> 97 </span><span class="Comment">// Like in real-world Linux, we'll allocate RAM for our programs in disjoint</span> +<span id="L98" class="LineNr"> 98 </span><span class="Comment">// slabs called VMAs or Virtual Memory Areas.</span> +<span id="L99" class="LineNr"> 99 </span><span class="Normal">struct</span> vma <span class="Delimiter">{</span> +<span id="L100" class="LineNr">100 </span> <span class="Normal">uint32_t</span> start<span class="Delimiter">;</span> <span class="Comment">// inclusive</span> +<span id="L101" class="LineNr">101 </span> <span class="Normal">uint32_t</span> end<span class="Delimiter">;</span> <span class="Comment">// exclusive</span> +<span id="L102" class="LineNr">102 </span> vector<<span class="Normal">uint8_t</span>> <a href='010---vm.cc.html#L102'>_data</a><span class="Delimiter">;</span> +<span id="L103" class="LineNr">103 </span> vma<span class="Delimiter">(</span><span class="Normal">uint32_t</span> s<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> e<span class="Delimiter">)</span> :start<span class="Delimiter">(</span>s<span class="Delimiter">),</span> end<span class="Delimiter">(</span>e<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L104" class="LineNr">104 </span> <a href='010---vm.cc.html#L102'>_data</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>end-start<span class="Delimiter">);</span> +<span id="L105" class="LineNr">105 </span> <span class="Delimiter">}</span> +<span id="L106" class="LineNr">106 </span> vma<span class="Delimiter">(</span><span class="Normal">uint32_t</span> s<span class="Delimiter">)</span> :start<span class="Delimiter">(</span>s<span class="Delimiter">),</span> end<span class="Delimiter">(</span>s+INITIAL_SEGMENT_SIZE<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L107" class="LineNr">107 </span> <a href='010---vm.cc.html#L102'>_data</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>end-start<span class="Delimiter">);</span> +<span id="L108" class="LineNr">108 </span> <span class="Delimiter">}</span> +<span id="L109" class="LineNr">109 </span> <span class="Normal">bool</span> <a href='010---vm.cc.html#L109'>match</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> a<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L110" class="LineNr">110 </span> <span class="Identifier">return</span> a >= start && a < end<span class="Delimiter">;</span> +<span id="L111" class="LineNr">111 </span> <span class="Delimiter">}</span> +<span id="L112" class="LineNr">112 </span> <span class="Normal">bool</span> <a href='010---vm.cc.html#L112'>match32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> a<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L113" class="LineNr">113 </span> <span class="Identifier">return</span> a >= start && a+<span class="Constant">4</span> <= end<span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span> <span class="Delimiter">}</span> +<span id="L115" class="LineNr">115 </span> <span class="Normal">uint8_t</span>& data<span class="Delimiter">(</span><span class="Normal">uint32_t</span> a<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L116" class="LineNr">116 </span> assert<span class="Delimiter">(</span><a href='010---vm.cc.html#L109'>match</a><span class="Delimiter">(</span>a<span class="Delimiter">));</span> +<span id="L117" class="LineNr">117 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L102'>_data</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>a-start<span class="Delimiter">);</span> +<span id="L118" class="LineNr">118 </span> <span class="Delimiter">}</span> +<span id="L119" class="LineNr">119 </span> <span class="Normal">void</span> <a href='010---vm.cc.html#L119'>grow_until</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> new_end_address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L120" class="LineNr">120 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>new_end_address < end<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L121" class="LineNr">121 </span> <span class="Comment">// Ugly: vma knows about the global Memory list of vmas</span> +<span id="L122" class="LineNr">122 </span> <span class="Normal">void</span> <a href='010---vm.cc.html#L130'>sanity_check</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> start<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> end<span class="Delimiter">);</span> +<span id="L123" class="LineNr">123 </span> <a href='010---vm.cc.html#L130'>sanity_check</a><span class="Delimiter">(</span>start<span class="Delimiter">,</span> new_end_address<span class="Delimiter">);</span> +<span id="L124" class="LineNr">124 </span> end = new_end_address<span class="Delimiter">;</span> +<span id="L125" class="LineNr">125 </span> <a href='010---vm.cc.html#L102'>_data</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>new_end_address - start<span class="Delimiter">);</span> +<span id="L126" class="LineNr">126 </span> <span class="Delimiter">}</span> +<span id="L127" class="LineNr">127 </span> <span class="Comment">// End vma Methods</span> +<span id="L128" class="LineNr">128 </span><span class="Delimiter">};</span> +<span id="L129" class="LineNr">129 </span><span class="Delimiter">:(code)</span> +<span id="L130" class="LineNr">130 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L130'>sanity_check</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> start<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> end<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L131" class="LineNr">131 </span> <span class="Normal">bool</span> dup_found =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L132" class="LineNr">132 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L133" class="LineNr">133 </span> <span class="Normal">const</span> vma& curr = <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>start == start<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L135" class="LineNr">135 </span> assert<span class="Delimiter">(</span>!dup_found<span class="Delimiter">);</span> +<span id="L136" class="LineNr">136 </span> dup_found =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L137" class="LineNr">137 </span> <span class="Delimiter">}</span> +<span id="L138" class="LineNr">138 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>start > start<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L139" class="LineNr">139 </span> assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>start > end<span class="Delimiter">);</span> +<span id="L140" class="LineNr">140 </span> <span class="Delimiter">}</span> +<span id="L141" class="LineNr">141 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>start < start<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L142" class="LineNr">142 </span> assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>end < start<span class="Delimiter">);</span> +<span id="L143" class="LineNr">143 </span> <span class="Delimiter">}</span> +<span id="L144" class="LineNr">144 </span> <span class="Delimiter">}</span> +<span id="L145" class="LineNr">145 </span><span class="Delimiter">}</span> +<span id="L146" class="LineNr">146 </span> +<span id="L147" class="LineNr">147 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L148" class="LineNr">148 </span><span class="Comment">// RAM is made of VMAs.</span> +<span id="L149" class="LineNr">149 </span>vector<vma> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">;</span> +<span id="L150" class="LineNr">150 </span><span class="Delimiter">:(code)</span> +<span id="L151" class="LineNr">151 </span><span class="Comment">// The first 3 VMAs are special. When loading ELF binaries in later layers,</span> +<span id="L152" class="LineNr">152 </span><span class="Comment">// we'll assume that the first VMA is for code, the second is for data</span> +<span id="L153" class="LineNr">153 </span><span class="Comment">// (including the heap), and the third for the stack.</span> +<span id="L154" class="LineNr">154 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L154'>grow_code_segment</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> new_end_address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L155" class="LineNr">155 </span> assert<span class="Delimiter">(</span>!Mem<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> +<span id="L156" class="LineNr">156 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='010---vm.cc.html#L119'>grow_until</a><span class="Delimiter">(</span>new_end_address<span class="Delimiter">);</span> +<span id="L157" class="LineNr">157 </span><span class="Delimiter">}</span> +<span id="L158" class="LineNr">158 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L158'>grow_data_segment</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> new_end_address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L159" class="LineNr">159 </span> assert<span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">)</span> > <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L160" class="LineNr">160 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='010---vm.cc.html#L119'>grow_until</a><span class="Delimiter">(</span>new_end_address<span class="Delimiter">);</span> +<span id="L161" class="LineNr">161 </span><span class="Delimiter">}</span> +<span id="L162" class="LineNr">162 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L163" class="LineNr">163 </span><span class="Normal">uint32_t</span> <a href='010---vm.cc.html#L163'>End_of_program</a> = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// when the program executes past this address in tests we'll stop the test</span> +<span id="L164" class="LineNr">164 </span><span class="Comment">// The stack grows downward. Can't increase its size for now.</span> +<span id="L165" class="LineNr">165 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L166" class="LineNr">166 </span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> +<span id="L167" class="LineNr">167 </span><a href='010---vm.cc.html#L163'>End_of_program</a> = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L168" class="LineNr">168 </span><span class="Delimiter">:(code)</span> +<span id="L169" class="LineNr">169 </span><span class="Comment">// These helpers depend on Mem being laid out contiguously (so you can't use a</span> +<span id="L170" class="LineNr">170 </span><span class="Comment">// map, etc.) and on the host also being little-endian.</span> +<span id="L171" class="LineNr">171 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L171'>read_mem_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L172" class="LineNr">172 </span> <span class="Normal">uint8_t</span>* handle = <a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> <span class="Comment">// error messages get printed here</span> +<span id="L173" class="LineNr">173 </span> <span class="Identifier">return</span> handle ? *handle : <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L174" class="LineNr">174 </span><span class="Delimiter">}</span> +<span id="L175" class="LineNr">175 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span> <a href='010---vm.cc.html#L175'>read_mem_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L176" class="LineNr">176 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int8_t</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L171'>read_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">));</span> +<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> +<span id="L178" class="LineNr">178 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='010---vm.cc.html#L178'>read_mem_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L179" class="LineNr">179 </span> <span class="Normal">uint32_t</span>* handle = <a href='010---vm.cc.html#L202'>mem_addr_u32</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> <span class="Comment">// error messages get printed here</span> +<span id="L180" class="LineNr">180 </span> <span class="Identifier">return</span> handle ? *handle : <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L181" class="LineNr">181 </span><span class="Delimiter">}</span> +<span id="L182" class="LineNr">182 </span><span class="Normal">inline</span> <span class="Normal">int32_t</span> <a href='010---vm.cc.html#L182'>read_mem_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L183" class="LineNr">183 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L178'>read_mem_u32</a><span class="Delimiter">(</span>addr<span class="Delimiter">));</span> +<span id="L184" class="LineNr">184 </span><span class="Delimiter">}</span> +<span id="L185" class="LineNr">185 </span> +<span id="L186" class="LineNr">186 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span>* <a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L187" class="LineNr">187 </span> <span class="Normal">uint8_t</span>* result = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L188" class="LineNr">188 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L189" class="LineNr">189 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='010---vm.cc.html#L109'>match</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L190" class="LineNr">190 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> +<span id="L191" class="LineNr">191 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << <span class="Constant">" is in two <a href='011run.cc.html#L100'>segments</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L192" class="LineNr">192 </span> result = &Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L193" class="LineNr">193 </span> <span class="Delimiter">}</span> +<span id="L194" class="LineNr">194 </span> <span class="Delimiter">}</span> +<span id="L195" class="LineNr">195 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result == <span class="Constant">NULL</span><span class="Delimiter">)</span> +<span id="L196" class="LineNr">196 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Tried to access uninitialized memory at address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L197" class="LineNr">197 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L198" class="LineNr">198 </span><span class="Delimiter">}</span> +<span id="L199" class="LineNr">199 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span>* <a href='010---vm.cc.html#L199'>mem_addr_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L200" class="LineNr">200 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">int8_t</span>*><span class="Delimiter">(</span><a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">));</span> +<span id="L201" class="LineNr">201 </span><span class="Delimiter">}</span> +<span id="L202" class="LineNr">202 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span>* <a href='010---vm.cc.html#L202'>mem_addr_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L203" class="LineNr">203 </span> <span class="Normal">uint32_t</span>* result = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L204" class="LineNr">204 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L205" class="LineNr">205 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='010---vm.cc.html#L112'>match32</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L206" class="LineNr">206 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> +<span id="L207" class="LineNr">207 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << <span class="Constant">" is in two <a href='011run.cc.html#L100'>segments</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L208" class="LineNr">208 </span> result = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">(</span>addr<span class="Delimiter">));</span> +<span id="L209" class="LineNr">209 </span> <span class="Delimiter">}</span> +<span id="L210" class="LineNr">210 </span> <span class="Delimiter">}</span> +<span id="L211" class="LineNr">211 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L212" class="LineNr">212 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Tried to access uninitialized memory at address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L213" class="LineNr">213 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"The entire 4-byte <a href='011run.cc.html#L123'>word</a> should be initialized and lie in a single segment.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L214" class="LineNr">214 </span> <span class="Delimiter">}</span> +<span id="L215" class="LineNr">215 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L216" class="LineNr">216 </span><span class="Delimiter">}</span> -<span id="L217" class="LineNr">217 </span> -<span id="L218" class="LineNr">218 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L218'>dump_registers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L219" class="LineNr">219 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='010---vm.cc.html#L21'>NUM_INT_REGISTERS</a><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L220" class="LineNr">220 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> cerr << <span class="Constant">"; "</span><span class="Delimiter">;</span> -<span id="L221" class="LineNr">221 </span> cerr << <span class="Constant">" "</span> << i << <span class="Constant">": "</span> << std::hex << std::setw<span class="Delimiter">(</span><span class="Constant">8</span><span class="Delimiter">)</span> << std::setfill<span class="Delimiter">(</span><span class="Constant">'_'</span><span class="Delimiter">)</span> << Reg[i]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L222" class="LineNr">222 </span> <span class="Delimiter">}</span> -<span id="L223" class="LineNr">223 </span> cerr << <span class="Constant">" -- SF: "</span> << SF << <span class="Constant">"; ZF: "</span> << ZF << <span class="Constant">"; <a href='010---vm.cc.html#L59'>OF</a>: "</span> << <a href='010---vm.cc.html#L59'>OF</a> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L224" class="LineNr">224 </span><span class="Delimiter">}</span> -<span id="L225" class="LineNr">225 </span> -<span id="L226" class="LineNr">226 </span><span class="Comment">//: start tracking supported opcodes</span> -<span id="L227" class="LineNr">227 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L228" class="LineNr">228 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">;</span> -<span id="L229" class="LineNr">229 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">;</span> -<span id="L230" class="LineNr">230 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L230'>name_f3</a><span class="Delimiter">;</span> -<span id="L231" class="LineNr">231 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L231'>name_f3_0f</a><span class="Delimiter">;</span> -<span id="L232" class="LineNr">232 </span><span class="Delimiter">:(before "End One-time Setup")</span> -<span id="L233" class="LineNr">233 </span><a href='010---vm.cc.html#L235'>init_op_names</a><span class="Delimiter">();</span> -<span id="L234" class="LineNr">234 </span><span class="Delimiter">:(code)</span> -<span id="L235" class="LineNr">235 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L235'>init_op_names</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L236" class="LineNr">236 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"f4"</span><span class="Delimiter">,</span> <span class="Constant">"halt"</span><span class="Delimiter">);</span> -<span id="L237" class="LineNr">237 </span> <span class="Comment">// End Initialize Op Names(name)</span> -<span id="L238" class="LineNr">238 </span><span class="Delimiter">}</span> -<span id="L239" class="LineNr">239 </span> -<span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)")</span> -<span id="L241" class="LineNr">241 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">"opcodes"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L242" class="LineNr">242 </span> cerr << <span class="Constant">"Opcodes currently supported by SubX:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L243" class="LineNr">243 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L244" class="LineNr">244 </span> cerr << <span class="Constant">" "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L245" class="LineNr">245 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L246" class="LineNr">246 </span> cerr << <span class="Constant">" 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L247" class="LineNr">247 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L230'>name_f3</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L230'>name_f3</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L248" class="LineNr">248 </span> cerr << <span class="Constant">" f3 "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L249" class="LineNr">249 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L231'>name_f3_0f</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L231'>name_f3_0f</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L250" class="LineNr">250 </span> cerr << <span class="Constant">" f3 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L251" class="LineNr">251 </span> cerr << <span class="Constant">"Run `subx help instructions` for details on <a href='011run.cc.html#L118'>words</a> like 'r32' and 'disp8'.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L252" class="LineNr">252 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L253" class="LineNr">253 </span><span class="Delimiter">}</span> -<span id="L254" class="LineNr">254 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> -<span id="L255" class="LineNr">255 </span>cerr << <span class="Constant">" opcodes</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L256" class="LineNr">256 </span> -<span id="L257" class="LineNr">257 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L258" class="LineNr">258 </span><span class="Comment">#include <iomanip></span> -<span id="L259" class="LineNr">259 </span><span class="Comment">#define HEXBYTE std::hex << std::setw(2) << std::setfill('0')</span> -<span id="L260" class="LineNr">260 </span><span class="Comment">#define HEXWORD std::hex << std::setw(8) << std::setfill('0')</span> -<span id="L261" class="LineNr">261 </span><span class="Comment">// ugly that iostream doesn't print uint8_t as an integer</span> -<span id="L262" class="LineNr">262 </span><span class="Comment">#define NUM(X) static_cast<int>(X)</span> -<span id="L263" class="LineNr">263 </span><span class="Comment">#include <stdint.h></span> +<span id="L217" class="LineNr">217 </span><span class="Normal">inline</span> <span class="Normal">int32_t</span>* <a href='010---vm.cc.html#L217'>mem_addr_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L218" class="LineNr">218 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span><a href='010---vm.cc.html#L202'>mem_addr_u32</a><span class="Delimiter">(</span>addr<span class="Delimiter">));</span> +<span id="L219" class="LineNr">219 </span><span class="Delimiter">}</span> +<span id="L220" class="LineNr">220 </span><span class="Comment">// helper for some syscalls. But read-only.</span> +<span id="L221" class="LineNr">221 </span><span class="Normal">inline</span> <span class="Normal">const</span> <span class="Normal">char</span>* <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L222" class="LineNr">222 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">const</span> <span class="Normal">char</span>*><span class="Delimiter">(</span><a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">));</span> +<span id="L223" class="LineNr">223 </span><span class="Delimiter">}</span> +<span id="L224" class="LineNr">224 </span> +<span id="L225" class="LineNr">225 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L225'>write_mem_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L226" class="LineNr">226 </span> <span class="Normal">uint8_t</span>* handle = <a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L227" class="LineNr">227 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>handle != <span class="Constant">NULL</span><span class="Delimiter">)</span> *handle = val<span class="Delimiter">;</span> +<span id="L228" class="LineNr">228 </span><span class="Delimiter">}</span> +<span id="L229" class="LineNr">229 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L229'>write_mem_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">int8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L230" class="LineNr">230 </span> <span class="Normal">int8_t</span>* handle = <a href='010---vm.cc.html#L199'>mem_addr_i8</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L231" class="LineNr">231 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>handle != <span class="Constant">NULL</span><span class="Delimiter">)</span> *handle = val<span class="Delimiter">;</span> +<span id="L232" class="LineNr">232 </span><span class="Delimiter">}</span> +<span id="L233" class="LineNr">233 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L233'>write_mem_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L234" class="LineNr">234 </span> <span class="Normal">uint32_t</span>* handle = <a href='010---vm.cc.html#L202'>mem_addr_u32</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L235" class="LineNr">235 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>handle != <span class="Constant">NULL</span><span class="Delimiter">)</span> *handle = val<span class="Delimiter">;</span> +<span id="L236" class="LineNr">236 </span><span class="Delimiter">}</span> +<span id="L237" class="LineNr">237 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010---vm.cc.html#L237'>write_mem_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">int32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L238" class="LineNr">238 </span> <span class="Normal">int32_t</span>* handle = <a href='010---vm.cc.html#L217'>mem_addr_i32</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L239" class="LineNr">239 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>handle != <span class="Constant">NULL</span><span class="Delimiter">)</span> *handle = val<span class="Delimiter">;</span> +<span id="L240" class="LineNr">240 </span><span class="Delimiter">}</span> +<span id="L241" class="LineNr">241 </span> +<span id="L242" class="LineNr">242 </span><span class="Normal">inline</span> <span class="Normal">bool</span> <a href='010---vm.cc.html#L242'>already_allocated</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L243" class="LineNr">243 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L244" class="LineNr">244 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L245" class="LineNr">245 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='010---vm.cc.html#L109'>match</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L246" class="LineNr">246 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> +<span id="L247" class="LineNr">247 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << <span class="Constant">" is in two <a href='011run.cc.html#L100'>segments</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L248" class="LineNr">248 </span> result =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L249" class="LineNr">249 </span> <span class="Delimiter">}</span> +<span id="L250" class="LineNr">250 </span> <span class="Delimiter">}</span> +<span id="L251" class="LineNr">251 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L252" class="LineNr">252 </span><span class="Delimiter">}</span> +<span id="L253" class="LineNr">253 </span> +<span id="L254" class="LineNr">254 </span><span class="SalientComment">//:: core interpreter loop</span> +<span id="L255" class="LineNr">255 </span> +<span id="L256" class="LineNr">256 </span><span class="Delimiter">:(code)</span> +<span id="L257" class="LineNr">257 </span><span class="Comment">// skeleton of how x86 instructions are decoded</span> +<span id="L258" class="LineNr">258 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L258'>run_one_instruction</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L259" class="LineNr">259 </span> <span class="Normal">uint8_t</span> op=<span class="Constant">0</span><span class="Delimiter">,</span> op2=<span class="Constant">0</span><span class="Delimiter">,</span> op3=<span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L260" class="LineNr">260 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"inst: 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << end<span class="Delimiter">();</span> +<span id="L261" class="LineNr">261 </span><span class="CommentedCode">//? dump_registers();</span> +<span id="L262" class="LineNr">262 </span><span class="CommentedCode">//? cerr << "inst: 0x" << EIP << " => ";</span> +<span id="L263" class="LineNr">263 </span> op = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> +<span id="L264" class="LineNr">264 </span><span class="CommentedCode">//? cerr << HEXBYTE << NUM(op) << '\n';</span> +<span id="L265" class="LineNr">265 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L266" class="LineNr">266 </span> <span class="Normal">case</span> <span class="Constant">0xf4</span>: <span class="Comment">// hlt</span> +<span id="L267" class="LineNr">267 </span> <a href='010---vm.cc.html#L29'>EIP</a> = <a href='010---vm.cc.html#L163'>End_of_program</a><span class="Delimiter">;</span> +<span id="L268" class="LineNr">268 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L269" class="LineNr">269 </span> <span class="Comment">// End Single-Byte Opcodes</span> +<span id="L270" class="LineNr">270 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L271" class="LineNr">271 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L272" class="LineNr">272 </span> <span class="Comment">// End Two-Byte Opcodes Starting With 0f</span> +<span id="L273" class="LineNr">273 </span> <span class="Normal">default</span>: +<span id="L274" class="LineNr">274 </span> cerr << <span class="Constant">"unrecognized second opcode after 0f: "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L275" class="LineNr">275 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L276" class="LineNr">276 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L277" class="LineNr">277 </span> <span class="Delimiter">}</span> +<span id="L278" class="LineNr">278 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L279" class="LineNr">279 </span> <span class="Normal">case</span> <span class="Constant">0xf2</span>: +<span id="L280" class="LineNr">280 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L281" class="LineNr">281 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f2</span> +<span id="L282" class="LineNr">282 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L283" class="LineNr">283 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L284" class="LineNr">284 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f2 0f</span> +<span id="L285" class="LineNr">285 </span> <span class="Normal">default</span>: +<span id="L286" class="LineNr">286 </span> cerr << <span class="Constant">"unrecognized third opcode after f2 0f: "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L287" class="LineNr">287 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L288" class="LineNr">288 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L289" class="LineNr">289 </span> <span class="Delimiter">}</span> +<span id="L290" class="LineNr">290 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L291" class="LineNr">291 </span> <span class="Normal">default</span>: +<span id="L292" class="LineNr">292 </span> cerr << <span class="Constant">"unrecognized second opcode after f2: "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L293" class="LineNr">293 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L294" class="LineNr">294 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L295" class="LineNr">295 </span> <span class="Delimiter">}</span> +<span id="L296" class="LineNr">296 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L297" class="LineNr">297 </span> <span class="Normal">case</span> <span class="Constant">0xf3</span>: +<span id="L298" class="LineNr">298 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L299" class="LineNr">299 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f3</span> +<span id="L300" class="LineNr">300 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L301" class="LineNr">301 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L302" class="LineNr">302 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f3 0f</span> +<span id="L303" class="LineNr">303 </span> <span class="Normal">default</span>: +<span id="L304" class="LineNr">304 </span> cerr << <span class="Constant">"unrecognized third opcode after f3 0f: "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L305" class="LineNr">305 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L306" class="LineNr">306 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L307" class="LineNr">307 </span> <span class="Delimiter">}</span> +<span id="L308" class="LineNr">308 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L309" class="LineNr">309 </span> <span class="Normal">default</span>: +<span id="L310" class="LineNr">310 </span> cerr << <span class="Constant">"unrecognized second opcode after f3: "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L311" class="LineNr">311 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L312" class="LineNr">312 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L313" class="LineNr">313 </span> <span class="Delimiter">}</span> +<span id="L314" class="LineNr">314 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L315" class="LineNr">315 </span> <span class="Normal">default</span>: +<span id="L316" class="LineNr">316 </span> cerr << <span class="Constant">"unrecognized opcode: "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L317" class="LineNr">317 </span> <a href='003trace.cc.html#L208'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L318" class="LineNr">318 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L319" class="LineNr">319 </span> <span class="Delimiter">}</span> +<span id="L320" class="LineNr">320 </span><span class="Delimiter">}</span> +<span id="L321" class="LineNr">321 </span> +<span id="L322" class="LineNr">322 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L323" class="LineNr">323 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L171'>read_mem_u8</a><span class="Delimiter">(</span>EIP++<span class="Delimiter">);</span> +<span id="L324" class="LineNr">324 </span><span class="Delimiter">}</span> +<span id="L325" class="LineNr">325 </span> +<span id="L326" class="LineNr">326 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L326'>dump_registers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L327" class="LineNr">327 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='010---vm.cc.html#L21'>NUM_INT_REGISTERS</a><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L328" class="LineNr">328 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> cerr << <span class="Constant">"; "</span><span class="Delimiter">;</span> +<span id="L329" class="LineNr">329 </span> cerr << <span class="Constant">" "</span> << i << <span class="Constant">": "</span> << std::hex << std::setw<span class="Delimiter">(</span><span class="Constant">8</span><span class="Delimiter">)</span> << std::setfill<span class="Delimiter">(</span><span class="Constant">'_'</span><span class="Delimiter">)</span> << Reg[i]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L330" class="LineNr">330 </span> <span class="Delimiter">}</span> +<span id="L331" class="LineNr">331 </span> cerr << <span class="Constant">" -- SF: "</span> << SF << <span class="Constant">"; ZF: "</span> << ZF << <span class="Constant">"; <a href='010---vm.cc.html#L59'>OF</a>: "</span> << <a href='010---vm.cc.html#L59'>OF</a> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L332" class="LineNr">332 </span><span class="Delimiter">}</span> +<span id="L333" class="LineNr">333 </span> +<span id="L334" class="LineNr">334 </span><span class="Comment">//: start tracking supported opcodes</span> +<span id="L335" class="LineNr">335 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L336" class="LineNr">336 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">;</span> +<span id="L337" class="LineNr">337 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">;</span> +<span id="L338" class="LineNr">338 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L338'>name_f3</a><span class="Delimiter">;</span> +<span id="L339" class="LineNr">339 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010---vm.cc.html#L339'>name_f3_0f</a><span class="Delimiter">;</span> +<span id="L340" class="LineNr">340 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L341" class="LineNr">341 </span><a href='010---vm.cc.html#L343'>init_op_names</a><span class="Delimiter">();</span> +<span id="L342" class="LineNr">342 </span><span class="Delimiter">:(code)</span> +<span id="L343" class="LineNr">343 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L343'>init_op_names</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L344" class="LineNr">344 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"f4"</span><span class="Delimiter">,</span> <span class="Constant">"halt"</span><span class="Delimiter">);</span> +<span id="L345" class="LineNr">345 </span> <span class="Comment">// End Initialize Op Names(name)</span> +<span id="L346" class="LineNr">346 </span><span class="Delimiter">}</span> +<span id="L347" class="LineNr">347 </span> +<span id="L348" class="LineNr">348 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)")</span> +<span id="L349" class="LineNr">349 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">"opcodes"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L350" class="LineNr">350 </span> cerr << <span class="Constant">"Opcodes currently supported by SubX:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L351" class="LineNr">351 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L352" class="LineNr">352 </span> cerr << <span class="Constant">" "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L353" class="LineNr">353 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L354" class="LineNr">354 </span> cerr << <span class="Constant">" 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L355" class="LineNr">355 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L338'>name_f3</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L338'>name_f3</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L356" class="LineNr">356 </span> cerr << <span class="Constant">" f3 "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L357" class="LineNr">357 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010---vm.cc.html#L339'>name_f3_0f</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010---vm.cc.html#L339'>name_f3_0f</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L358" class="LineNr">358 </span> cerr << <span class="Constant">" f3 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L359" class="LineNr">359 </span> cerr << <span class="Constant">"Run `subx help instructions` for details on <a href='011run.cc.html#L118'>words</a> like 'r32' and 'disp8'.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L360" class="LineNr">360 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L361" class="LineNr">361 </span><span class="Delimiter">}</span> +<span id="L362" class="LineNr">362 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> +<span id="L363" class="LineNr">363 </span>cerr << <span class="Constant">" opcodes</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L364" class="LineNr">364 </span> +<span id="L365" class="LineNr">365 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L366" class="LineNr">366 </span><span class="Comment">#include <iomanip></span> +<span id="L367" class="LineNr">367 </span><span class="Comment">#define HEXBYTE std::hex << std::setw(2) << std::setfill('0')</span> +<span id="L368" class="LineNr">368 </span><span class="Comment">#define HEXWORD std::hex << std::setw(8) << std::setfill('0')</span> +<span id="L369" class="LineNr">369 </span><span class="Comment">// ugly that iostream doesn't print uint8_t as an integer</span> +<span id="L370" class="LineNr">370 </span><span class="Comment">#define NUM(X) static_cast<int>(X)</span> +<span id="L371" class="LineNr">371 </span><span class="Comment">#include <stdint.h></span> </pre> </body> </html> diff --git a/html/subx/011run.cc.html b/html/subx/011run.cc.html index c91c7fb0..f4049fcf 100644 --- a/html/subx/011run.cc.html +++ b/html/subx/011run.cc.html @@ -72,7 +72,7 @@ if ('onhashchange' in window) { <span id="L9" class="LineNr"> 9 </span> <span class="Constant">"Line-endings are significant; each <a href='011run.cc.html#L117'>line</a> should contain a single</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L10" class="LineNr"> 10 </span> <span class="Constant">"instruction, macro or directive.</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L11" class="LineNr"> 11 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> -<span id="L12" class="LineNr"> 12 </span> <span class="Constant">"Comments <a href='011run.cc.html#L108'>start</a> with the '#' character. It should be at the <a href='011run.cc.html#L108'>start</a> of a <a href='011run.cc.html#L123'>word</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L12" class="LineNr"> 12 </span> <span class="Constant">"Comments start with the '#' character. It should be at the start of a <a href='011run.cc.html#L123'>word</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L13" class="LineNr"> 13 </span> <span class="Constant">"(start of <a href='011run.cc.html#L117'>line</a>, or following a space).</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L14" class="LineNr"> 14 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L15" class="LineNr"> 15 </span> <span class="Constant">"Each segment starts with a header <a href='011run.cc.html#L117'>line</a>: a '==' delimiter followed by the</span><span class="cSpecial">\n</span><span class="Constant">"</span> @@ -81,8 +81,8 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr"> 18 </span> <span class="Constant">"The starting address for a segment has some finicky requirements. But just</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L19" class="LineNr"> 19 </span> <span class="Constant">"start with a round number, and `subx` will try to guide you to a valid</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L20" class="LineNr"> 20 </span> <span class="Constant">"configuration.</span><span class="cSpecial">\n</span><span class="Constant">"</span> -<span id="L21" class="LineNr"> 21 </span> <span class="Constant">"A good rule of thumb is to try to <a href='011run.cc.html#L108'>start</a> the first segment at the default</span><span class="cSpecial">\n</span><span class="Constant">"</span> -<span id="L22" class="LineNr"> 22 </span> <span class="Constant">"address of 0x08048000, and to <a href='011run.cc.html#L108'>start</a> each subsequent segment at least 0x1000</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Constant">"A good rule of thumb is to try to start the first segment at the default</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L22" class="LineNr"> 22 </span> <span class="Constant">"address of 0x08048000, and to start each subsequent segment at least 0x1000</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L23" class="LineNr"> 23 </span> <span class="Constant">"(most common page size) bytes after the last.</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L24" class="LineNr"> 24 </span> <span class="Constant">"If a segment occupies than 0x1000 bytes you'll need to push subsequent</span><span class="cSpecial">\n</span><span class="Constant">"</span> <span id="L25" class="LineNr"> 25 </span> <span class="Constant">"segments further down.</span><span class="cSpecial">\n</span><span class="Constant">"</span> @@ -146,14 +146,14 @@ if ('onhashchange' in window) { <span id="L83" class="LineNr"> 83 </span><span class="Normal">void</span> <a href='011run.cc.html#L83'>run</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L84" class="LineNr"> 84 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> <span id="L85" class="LineNr"> 85 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> -<span id="L86" class="LineNr"> 86 </span> <a href='011run.cc.html#L132'>parse</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> <span id="L87" class="LineNr"> 87 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if any stage raises errors, stop immediately</span> -<span id="L88" class="LineNr"> 88 </span> <a href='011run.cc.html#L209'>transform</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L88" class="LineNr"> 88 </span> <a href='011run.cc.html#L231'>transform</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> <span id="L89" class="LineNr"> 89 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L90" class="LineNr"> 90 </span> <a href='011run.cc.html#L218'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L90" class="LineNr"> 90 </span> <a href='011run.cc.html#L240'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> <span id="L91" class="LineNr"> 91 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L92" class="LineNr"> 92 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a> < <a href='010---vm.cc.html#L95'>End_of_program</a><span class="Delimiter">)</span> -<span id="L93" class="LineNr"> 93 </span> <a href='010---vm.cc.html#L150'>run_one_instruction</a><span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a> < <a href='010---vm.cc.html#L163'>End_of_program</a><span class="Delimiter">)</span> +<span id="L93" class="LineNr"> 93 </span> <a href='010---vm.cc.html#L258'>run_one_instruction</a><span class="Delimiter">();</span> <span id="L94" class="LineNr"> 94 </span><span class="Delimiter">}</span> <span id="L95" class="LineNr"> 95 </span> <span id="L96" class="LineNr"> 96 </span><span class="SalientComment">//:: core data structures</span> @@ -168,11 +168,11 @@ if ('onhashchange' in window) { <span id="L105" class="LineNr">105 </span><span class="Delimiter">};</span> <span id="L106" class="LineNr">106 </span><span class="Delimiter">:(before "struct program")</span> <span id="L107" class="LineNr">107 </span><span class="Normal">struct</span> segment <span class="Delimiter">{</span> -<span id="L108" class="LineNr">108 </span> <span class="Normal">uint32_t</span> <a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> +<span id="L108" class="LineNr">108 </span> <span class="Normal">uint32_t</span> start<span class="Delimiter">;</span> <span id="L109" class="LineNr">109 </span> vector<line> <a href='011run.cc.html#L109'>lines</a><span class="Delimiter">;</span> <span id="L110" class="LineNr">110 </span> <span class="Comment">// End segment Fields</span> <span id="L111" class="LineNr">111 </span> segment<span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L112" class="LineNr">112 </span> <a href='011run.cc.html#L108'>start</a> = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L112" class="LineNr">112 </span> start = <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L113" class="LineNr">113 </span> <span class="Comment">// End segment Constructor</span> <span id="L114" class="LineNr">114 </span> <span class="Delimiter">}</span> <span id="L115" class="LineNr">115 </span><span class="Delimiter">};</span> @@ -185,22 +185,22 @@ if ('onhashchange' in window) { <span id="L122" class="LineNr">122 </span><span class="Delimiter">:(before "struct line")</span> <span id="L123" class="LineNr">123 </span><span class="Normal">struct</span> <a href='011run.cc.html#L123'>word</a> <span class="Delimiter">{</span> <span id="L124" class="LineNr">124 </span> string original<span class="Delimiter">;</span> -<span id="L125" class="LineNr">125 </span> string <a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> +<span id="L125" class="LineNr">125 </span> string data<span class="Delimiter">;</span> <span id="L126" class="LineNr">126 </span> vector<string> metadata<span class="Delimiter">;</span> <span id="L127" class="LineNr">127 </span><span class="Delimiter">};</span> <span id="L128" class="LineNr">128 </span> <span id="L129" class="LineNr">129 </span><span class="SalientComment">//:: parse</span> <span id="L130" class="LineNr">130 </span> <span id="L131" class="LineNr">131 </span><span class="Delimiter">:(code)</span> -<span id="L132" class="LineNr">132 </span><span class="Normal">void</span> <a href='011run.cc.html#L132'>parse</a><span class="Delimiter">(</span>istream& fin<span class="Delimiter">,</span> program& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L132" class="LineNr">132 </span><span class="Normal">void</span> parse<span class="Delimiter">(</span>istream& fin<span class="Delimiter">,</span> program& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L133" class="LineNr">133 </span> vector<line> l<span class="Delimiter">;</span> -<span id="L134" class="LineNr">134 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L134" class="LineNr">134 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << end<span class="Delimiter">();</span> <span id="L135" class="LineNr">135 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>fin<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L136" class="LineNr">136 </span> string line_data<span class="Delimiter">;</span> <span id="L137" class="LineNr">137 </span> <a href='011run.cc.html#L117'>line</a> curr<span class="Delimiter">;</span> <span id="L138" class="LineNr">138 </span> getline<span class="Delimiter">(</span>fin<span class="Delimiter">,</span> line_data<span class="Delimiter">);</span> <span id="L139" class="LineNr">139 </span> curr<span class="Delimiter">.</span>original = line_data<span class="Delimiter">;</span> -<span id="L140" class="LineNr">140 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"line: "</span> << line_data << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L140" class="LineNr">140 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"line: "</span> << line_data << end<span class="Delimiter">();</span> <span id="L141" class="LineNr">141 </span> <span class="Comment">// End Line Parsing Special-cases(line_data -> l)</span> <span id="L142" class="LineNr">142 </span> istringstream lin<span class="Delimiter">(</span>line_data<span class="Delimiter">);</span> <span id="L143" class="LineNr">143 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>lin<span class="Delimiter">))</span> <span class="Delimiter">{</span> @@ -210,19 +210,19 @@ if ('onhashchange' in window) { <span id="L147" class="LineNr">147 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data[<span class="Constant">0</span>] == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// comment</span> <span id="L148" class="LineNr">148 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data == <span class="Constant">"."</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// comment token</span> <span id="L149" class="LineNr">149 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data == <span class="Constant">"=="</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L150" class="LineNr">150 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!l<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L151" class="LineNr">151 </span> assert<span class="Delimiter">(</span>!out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">());</span> -<span id="L152" class="LineNr">152 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing to segment"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L153" class="LineNr">153 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>l<span class="Delimiter">);</span> -<span id="L154" class="LineNr">154 </span> <span class="Delimiter">}</span> -<span id="L155" class="LineNr">155 </span> segment s<span class="Delimiter">;</span> -<span id="L156" class="LineNr">156 </span> string segment_title<span class="Delimiter">;</span> -<span id="L157" class="LineNr">157 </span> lin >> segment_title<span class="Delimiter">;</span> -<span id="L158" class="LineNr">158 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span>segment_title<span class="Delimiter">,</span> <span class="Constant">"0x"</span><span class="Delimiter">))</span> -<span id="L159" class="LineNr">159 </span> s<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a> = <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span>segment_title<span class="Delimiter">);</span> -<span id="L160" class="LineNr">160 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"new segment from "</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << s<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L161" class="LineNr">161 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>s<span class="Delimiter">);</span> -<span id="L162" class="LineNr">162 </span> <span class="Comment">// todo?</span> +<span id="L150" class="LineNr">150 </span> <a href='011run.cc.html#L180'>flush</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> l<span class="Delimiter">);</span> +<span id="L151" class="LineNr">151 </span> string segment_title<span class="Delimiter">;</span> +<span id="L152" class="LineNr">152 </span> lin >> segment_title<span class="Delimiter">;</span> +<span id="L153" class="LineNr">153 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span>segment_title<span class="Delimiter">,</span> <span class="Constant">"0x"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L154" class="LineNr">154 </span> segment s<span class="Delimiter">;</span> +<span id="L155" class="LineNr">155 </span> s<span class="Delimiter">.</span>start = <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span>segment_title<span class="Delimiter">);</span> +<span id="L156" class="LineNr">156 </span> <a href='011run.cc.html#L201'>sanity_check_program_segment</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> s<span class="Delimiter">.</span>start<span class="Delimiter">);</span> +<span id="L157" class="LineNr">157 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L158" class="LineNr">158 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"new segment from 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << s<span class="Delimiter">.</span>start << end<span class="Delimiter">();</span> +<span id="L159" class="LineNr">159 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L160" class="LineNr">160 </span> <span class="Delimiter">}</span> +<span id="L161" class="LineNr">161 </span> <span class="Comment">// End Segment Parsing Special-cases(segment_title)</span> +<span id="L162" class="LineNr">162 </span> <span class="Comment">// todo: segment segment metadata</span> <span id="L163" class="LineNr">163 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// skip rest of line</span> <span id="L164" class="LineNr">164 </span> <span class="Delimiter">}</span> <span id="L165" class="LineNr">165 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data[<span class="Constant">0</span>] == <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -230,190 +230,228 @@ if ('onhashchange' in window) { <span id="L167" class="LineNr">167 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L168" class="LineNr">168 </span> <span class="Delimiter">}</span> <span id="L169" class="LineNr">169 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> -<span id="L170" class="LineNr">170 </span> <a href='011run.cc.html#L184'>parse_word</a><span class="Delimiter">(</span>word_data<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span> +<span id="L170" class="LineNr">170 </span> <a href='011run.cc.html#L191'>parse_word</a><span class="Delimiter">(</span>word_data<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span> <span id="L171" class="LineNr">171 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"word: "</span> << to_string<span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span> <span id="L172" class="LineNr">172 </span> <span class="Delimiter">}</span> <span id="L173" class="LineNr">173 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span id="L174" class="LineNr">174 </span> l<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span> <span id="L175" class="LineNr">175 </span> <span class="Delimiter">}</span> -<span id="L176" class="LineNr">176 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!l<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L177" class="LineNr">177 </span> assert<span class="Delimiter">(</span>!out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">());</span> -<span id="L178" class="LineNr">178 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing to segment"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L179" class="LineNr">179 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>l<span class="Delimiter">);</span> -<span id="L180" class="LineNr">180 </span> <span class="Delimiter">}</span> -<span id="L181" class="LineNr">181 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L182" class="LineNr">182 </span><span class="Delimiter">}</span> -<span id="L183" class="LineNr">183 </span> -<span id="L184" class="LineNr">184 </span><span class="Normal">void</span> <a href='011run.cc.html#L184'>parse_word</a><span class="Delimiter">(</span><span class="Normal">const</span> string& <a href='011run.cc.html#L125'>data</a><span class="Delimiter">,</span> word& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L185" class="LineNr">185 </span> out<span class="Delimiter">.</span>original = <a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L186" class="LineNr">186 </span> istringstream win<span class="Delimiter">(</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> -<span id="L187" class="LineNr">187 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> out<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L188" class="LineNr">188 </span> string m<span class="Delimiter">;</span> -<span id="L189" class="LineNr">189 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> m<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> -<span id="L190" class="LineNr">190 </span> out<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>m<span class="Delimiter">);</span> -<span id="L191" class="LineNr">191 </span> <span class="Delimiter">}</span> -<span id="L192" class="LineNr">192 </span><span class="Delimiter">}</span> -<span id="L193" class="LineNr">193 </span> -<span id="L194" class="LineNr">194 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L195" class="LineNr">195 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L196" class="LineNr">196 </span> out << w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L197" class="LineNr">197 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L198" class="LineNr">198 </span> out << <span class="Constant">" /"</span> << w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L199" class="LineNr">199 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L200" class="LineNr">200 </span><span class="Delimiter">}</span> -<span id="L201" class="LineNr">201 </span> -<span id="L202" class="LineNr">202 </span><span class="SalientComment">//:: transform</span> -<span id="L203" class="LineNr">203 </span> -<span id="L204" class="LineNr">204 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L205" class="LineNr">205 </span><span class="Normal">typedef</span> <span class="Normal">void</span> <span class="Delimiter">(</span>*transform_fn<span class="Delimiter">)(</span>program&<span class="Delimiter">);</span> -<span id="L206" class="LineNr">206 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L207" class="LineNr">207 </span>vector<transform_fn> <a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">;</span> -<span id="L208" class="LineNr">208 </span> -<span id="L209" class="LineNr">209 </span><span class="Normal">void</span> <a href='011run.cc.html#L209'>transform</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L210" class="LineNr">210 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L211" class="LineNr">211 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> t = <span class="Constant">0</span><span class="Delimiter">;</span> t < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">);</span> ++t<span class="Delimiter">)</span> -<span id="L212" class="LineNr">212 </span> <span class="Delimiter">(</span>*Transform<span class="Delimiter">.</span>at<span class="Delimiter">(</span>t<span class="Delimiter">))(</span>p<span class="Delimiter">);</span> -<span id="L213" class="LineNr">213 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L214" class="LineNr">214 </span><span class="Delimiter">}</span> -<span id="L215" class="LineNr">215 </span> -<span id="L216" class="LineNr">216 </span><span class="SalientComment">//:: load</span> -<span id="L217" class="LineNr">217 </span> -<span id="L218" class="LineNr">218 </span><span class="Normal">void</span> <a href='011run.cc.html#L218'>load</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L219" class="LineNr">219 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L220" class="LineNr">220 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L221" class="LineNr">221 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"no <a href='031check_operands.cc.html#L14'>code</a> to <a href='011run.cc.html#L83'>run</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L222" class="LineNr">222 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L223" class="LineNr">223 </span> <span class="Delimiter">}</span> -<span id="L224" class="LineNr">224 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L225" class="LineNr">225 </span> <span class="Normal">const</span> segment& seg = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L226" class="LineNr">226 </span> <span class="Normal">uint32_t</span> addr = seg<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> -<span id="L227" class="LineNr">227 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"loading segment "</span> << i << <span class="Constant">" from "</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << addr << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L228" class="LineNr">228 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>seg<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L229" class="LineNr">229 </span> <span class="Normal">const</span> line& l = seg<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L230" class="LineNr">230 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> k = <span class="Constant">0</span><span class="Delimiter">;</span> k < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>l<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++k<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L231" class="LineNr">231 </span> <span class="Normal">const</span> word& w = l<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>k<span class="Delimiter">);</span> -<span id="L232" class="LineNr">232 </span> <span class="Normal">uint8_t</span> val = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> -<span id="L233" class="LineNr">233 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L234" class="LineNr">234 </span> <a href='010---vm.cc.html#L133'>write_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">,</span> val<span class="Delimiter">);</span> -<span id="L235" class="LineNr">235 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << addr << <span class="Constant">" -> "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L104'>read_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L236" class="LineNr">236 </span> ++addr<span class="Delimiter">;</span> -<span id="L237" class="LineNr">237 </span> <span class="Delimiter">}</span> -<span id="L238" class="LineNr">238 </span> <span class="Delimiter">}</span> -<span id="L239" class="LineNr">239 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <span class="Constant">0</span><span class="Delimiter">)</span> <a href='010---vm.cc.html#L95'>End_of_program</a> = addr<span class="Delimiter">;</span> -<span id="L240" class="LineNr">240 </span> <span class="Delimiter">}</span> -<span id="L241" class="LineNr">241 </span> <a href='010---vm.cc.html#L29'>EIP</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> -<span id="L242" class="LineNr">242 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L243" class="LineNr">243 </span><span class="Delimiter">}</span> -<span id="L244" class="LineNr">244 </span> -<span id="L245" class="LineNr">245 </span><span class="Normal">uint8_t</span> <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L246" class="LineNr">246 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> -<span id="L247" class="LineNr">247 </span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L248" class="LineNr">248 </span> in >> std::hex >> result<span class="Delimiter">;</span> -<span id="L249" class="LineNr">249 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L250" class="LineNr">250 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"token '"</span> << s << <span class="Constant">"' is not a hex byte</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L251" class="LineNr">251 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> -<span id="L252" class="LineNr">252 </span> <span class="Delimiter">}</span> -<span id="L253" class="LineNr">253 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result > <span class="Constant">0xff</span> || result < -<span class="Constant">0x8f</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L254" class="LineNr">254 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"token '"</span> << s << <span class="Constant">"' is not a hex byte</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L255" class="LineNr">255 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> -<span id="L256" class="LineNr">256 </span> <span class="Delimiter">}</span> -<span id="L257" class="LineNr">257 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>><span class="Delimiter">(</span>result<span class="Delimiter">);</span> -<span id="L258" class="LineNr">258 </span><span class="Delimiter">}</span> -<span id="L259" class="LineNr">259 </span> -<span id="L260" class="LineNr">260 </span><span class="Delimiter">:(scenarios parse_and_load)</span> -<span id="L261" class="LineNr">261 </span><span class="Delimiter">:(scenario number_too_large)</span> -<span id="L262" class="LineNr">262 </span><span class="Special">% Hide_errors = true;</span> -<span id="L263" class="LineNr">263 </span>== <span class="Constant">0x1</span> -<span id="L264" class="LineNr">264 </span><span class="PreProc">0</span><span class="Constant">5</span> cab -<span id="L265" class="LineNr">265 </span><span class="traceContains">+error: token 'cab' is not a hex byte</span> -<span id="L266" class="LineNr">266 </span> -<span id="L267" class="LineNr">267 </span><span class="Delimiter">:(scenario invalid_hex)</span> -<span id="L268" class="LineNr">268 </span><span class="Special">% Hide_errors = true;</span> -<span id="L269" class="LineNr">269 </span>== <span class="Constant">0x1</span> -<span id="L270" class="LineNr">270 </span><span class="PreProc">0</span><span class="Constant">5</span> cx -<span id="L271" class="LineNr">271 </span><span class="traceContains">+error: token 'cx' is not a hex byte</span> +<span id="L176" class="LineNr">176 </span> <a href='011run.cc.html#L180'>flush</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> l<span class="Delimiter">);</span> +<span id="L177" class="LineNr">177 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << end<span class="Delimiter">();</span> +<span id="L178" class="LineNr">178 </span><span class="Delimiter">}</span> +<span id="L179" class="LineNr">179 </span> +<span id="L180" class="LineNr">180 </span><span class="Normal">void</span> <a href='011run.cc.html#L180'>flush</a><span class="Delimiter">(</span>program& p<span class="Delimiter">,</span> vector<line>& <a href='011run.cc.html#L109'>lines</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L181" class="LineNr">181 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L182" class="LineNr">182 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L183" class="LineNr">183 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"input does not start with a '==' section header</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L184" class="LineNr">184 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L185" class="LineNr">185 </span> <span class="Delimiter">}</span> +<span id="L186" class="LineNr">186 </span> <span class="Comment">// End flush(p, lines) Special-cases</span> +<span id="L187" class="LineNr">187 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing to segment"</span> << end<span class="Delimiter">();</span> +<span id="L188" class="LineNr">188 </span> p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> +<span id="L189" class="LineNr">189 </span><span class="Delimiter">}</span> +<span id="L190" class="LineNr">190 </span> +<span id="L191" class="LineNr">191 </span><span class="Normal">void</span> <a href='011run.cc.html#L191'>parse_word</a><span class="Delimiter">(</span><span class="Normal">const</span> string& data<span class="Delimiter">,</span> word& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L192" class="LineNr">192 </span> out<span class="Delimiter">.</span>original = data<span class="Delimiter">;</span> +<span id="L193" class="LineNr">193 </span> istringstream win<span class="Delimiter">(</span>data<span class="Delimiter">);</span> +<span id="L194" class="LineNr">194 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> out<span class="Delimiter">.</span>data<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L195" class="LineNr">195 </span> string m<span class="Delimiter">;</span> +<span id="L196" class="LineNr">196 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> m<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> +<span id="L197" class="LineNr">197 </span> out<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>m<span class="Delimiter">);</span> +<span id="L198" class="LineNr">198 </span> <span class="Delimiter">}</span> +<span id="L199" class="LineNr">199 </span><span class="Delimiter">}</span> +<span id="L200" class="LineNr">200 </span> +<span id="L201" class="LineNr">201 </span><span class="Normal">void</span> <a href='011run.cc.html#L201'>sanity_check_program_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L202" class="LineNr">202 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L203" class="LineNr">203 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>start == addr<span class="Delimiter">)</span> +<span id="L204" class="LineNr">204 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"can't have multiple segments starting at address 0x"</span> << std::hex << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L205" class="LineNr">205 </span> <span class="Delimiter">}</span> +<span id="L206" class="LineNr">206 </span><span class="Delimiter">}</span> +<span id="L207" class="LineNr">207 </span> +<span id="L208" class="LineNr">208 </span><span class="Comment">// helper for tests</span> +<span id="L209" class="LineNr">209 </span><span class="Normal">void</span> parse<span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L210" class="LineNr">210 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> +<span id="L211" class="LineNr">211 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> +<span id="L212" class="LineNr">212 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L213" class="LineNr">213 </span><span class="Delimiter">}</span> +<span id="L214" class="LineNr">214 </span> +<span id="L215" class="LineNr">215 </span><span class="Delimiter">:(scenarios parse)</span> +<span id="L216" class="LineNr">216 </span><span class="Delimiter">:(scenario detect_duplicate_segments)</span> +<span id="L217" class="LineNr">217 </span><span class="Special">% Hide_errors = true;</span> +<span id="L218" class="LineNr">218 </span>== <span class="Constant">0xee</span> +<span id="L219" class="LineNr">219 </span>ab +<span id="L220" class="LineNr">220 </span>== <span class="Constant">0xee</span> +<span id="L221" class="LineNr">221 </span>cd +<span id="L222" class="LineNr">222 </span><span class="traceContains">+error: can't have multiple segments starting at address 0xee</span> +<span id="L223" class="LineNr">223 </span> +<span id="L224" class="LineNr">224 </span><span class="SalientComment">//:: transform</span> +<span id="L225" class="LineNr">225 </span> +<span id="L226" class="LineNr">226 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L227" class="LineNr">227 </span><span class="Normal">typedef</span> <span class="Normal">void</span> <span class="Delimiter">(</span>*transform_fn<span class="Delimiter">)(</span>program&<span class="Delimiter">);</span> +<span id="L228" class="LineNr">228 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L229" class="LineNr">229 </span>vector<transform_fn> <a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">;</span> +<span id="L230" class="LineNr">230 </span> +<span id="L231" class="LineNr">231 </span><span class="Normal">void</span> <a href='011run.cc.html#L231'>transform</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L232" class="LineNr">232 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << end<span class="Delimiter">();</span> +<span id="L233" class="LineNr">233 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> t = <span class="Constant">0</span><span class="Delimiter">;</span> t < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">);</span> ++t<span class="Delimiter">)</span> +<span id="L234" class="LineNr">234 </span> <span class="Delimiter">(</span>*Transform<span class="Delimiter">.</span>at<span class="Delimiter">(</span>t<span class="Delimiter">))(</span>p<span class="Delimiter">);</span> +<span id="L235" class="LineNr">235 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << end<span class="Delimiter">();</span> +<span id="L236" class="LineNr">236 </span><span class="Delimiter">}</span> +<span id="L237" class="LineNr">237 </span> +<span id="L238" class="LineNr">238 </span><span class="SalientComment">//:: load</span> +<span id="L239" class="LineNr">239 </span> +<span id="L240" class="LineNr">240 </span><span class="Normal">void</span> <a href='011run.cc.html#L240'>load</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L241" class="LineNr">241 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << end<span class="Delimiter">();</span> +<span id="L242" class="LineNr">242 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L243" class="LineNr">243 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"no <a href='031check_operands.cc.html#L14'>code</a> to <a href='011run.cc.html#L83'>run</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L244" class="LineNr">244 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L245" class="LineNr">245 </span> <span class="Delimiter">}</span> +<span id="L246" class="LineNr">246 </span> <span class="Comment">// Ensure segments are disjoint.</span> +<span id="L247" class="LineNr">247 </span> set<<span class="Normal">uint32_t</span>> overlap<span class="Delimiter">;</span> +<span id="L248" class="LineNr">248 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L249" class="LineNr">249 </span> <span class="Normal">const</span> segment& seg = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L250" class="LineNr">250 </span> <span class="Normal">uint32_t</span> addr = seg<span class="Delimiter">.</span>start<span class="Delimiter">;</span> +<span id="L251" class="LineNr">251 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!already_allocated<span class="Delimiter">(</span>addr<span class="Delimiter">))</span> +<span id="L252" class="LineNr">252 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span>seg<span class="Delimiter">.</span>start<span class="Delimiter">));</span> +<span id="L253" class="LineNr">253 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"loading segment "</span> << i << <span class="Constant">" from "</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << end<span class="Delimiter">();</span> +<span id="L254" class="LineNr">254 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>seg<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L255" class="LineNr">255 </span> <span class="Normal">const</span> line& l = seg<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L256" class="LineNr">256 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> k = <span class="Constant">0</span><span class="Delimiter">;</span> k < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>l<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++k<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L257" class="LineNr">257 </span> <span class="Normal">const</span> word& w = l<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>k<span class="Delimiter">);</span> +<span id="L258" class="LineNr">258 </span> <span class="Normal">uint8_t</span> val = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L259" class="LineNr">259 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L260" class="LineNr">260 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span>addr<span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L261" class="LineNr">261 </span> <a href='010---vm.cc.html#L225'>write_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">,</span> val<span class="Delimiter">);</span> +<span id="L262" class="LineNr">262 </span> overlap<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L263" class="LineNr">263 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << addr << <span class="Constant">" -> "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L171'>read_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> << end<span class="Delimiter">();</span> +<span id="L264" class="LineNr">264 </span> ++addr<span class="Delimiter">;</span> +<span id="L265" class="LineNr">265 </span> <span class="Delimiter">}</span> +<span id="L266" class="LineNr">266 </span> <span class="Delimiter">}</span> +<span id="L267" class="LineNr">267 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <span class="Constant">0</span><span class="Delimiter">)</span> <a href='010---vm.cc.html#L163'>End_of_program</a> = addr<span class="Delimiter">;</span> +<span id="L268" class="LineNr">268 </span> <span class="Delimiter">}</span> +<span id="L269" class="LineNr">269 </span> <a href='010---vm.cc.html#L29'>EIP</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>start<span class="Delimiter">;</span> +<span id="L270" class="LineNr">270 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << end<span class="Delimiter">();</span> +<span id="L271" class="LineNr">271 </span><span class="Delimiter">}</span> <span id="L272" class="LineNr">272 </span> -<span id="L273" class="LineNr">273 </span><span class="Delimiter">:(scenario negative_number)</span> -<span id="L274" class="LineNr">274 </span>== <span class="Constant">0x1</span> -<span id="L275" class="LineNr">275 </span><span class="PreProc">0</span><span class="Constant">5</span> -<span class="Constant">12</span> -<span id="L276" class="LineNr">276 </span>$error: <span class="Constant">0</span> -<span id="L277" class="LineNr">277 </span> -<span id="L278" class="LineNr">278 </span><span class="Delimiter">:(scenario negative_number_too_small)</span> -<span id="L279" class="LineNr">279 </span><span class="Special">% Hide_errors = true;</span> -<span id="L280" class="LineNr">280 </span>== <span class="Constant">0x1</span> -<span id="L281" class="LineNr">281 </span><span class="PreProc">0</span><span class="Constant">5</span> -<span class="Constant">12345</span> -<span id="L282" class="LineNr">282 </span><span class="traceContains">+error: token '-12345' is not a hex byte</span> -<span id="L283" class="LineNr">283 </span> -<span id="L284" class="LineNr">284 </span><span class="Delimiter">:(scenario hex_prefix)</span> -<span id="L285" class="LineNr">285 </span>== <span class="Constant">0x1</span> -<span id="L286" class="LineNr">286 </span><span class="Constant">0x05</span> -<span class="Constant">0x12</span> -<span id="L287" class="LineNr">287 </span>$error: <span class="Constant">0</span> -<span id="L288" class="LineNr">288 </span> -<span id="L289" class="LineNr">289 </span><span class="Comment">//: helper for tests</span> -<span id="L290" class="LineNr">290 </span><span class="Delimiter">:(code)</span> -<span id="L291" class="LineNr">291 </span><span class="Normal">void</span> <a href='011run.cc.html#L291'>parse_and_load</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L292" class="LineNr">292 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> -<span id="L293" class="LineNr">293 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> -<span id="L294" class="LineNr">294 </span> <a href='011run.cc.html#L132'>parse</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> -<span id="L295" class="LineNr">295 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if any stage raises errors, stop immediately</span> -<span id="L296" class="LineNr">296 </span> <a href='011run.cc.html#L218'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> -<span id="L297" class="LineNr">297 </span><span class="Delimiter">}</span> -<span id="L298" class="LineNr">298 </span> -<span id="L299" class="LineNr">299 </span><span class="SalientComment">//:: run</span> +<span id="L273" class="LineNr">273 </span><span class="Normal">uint8_t</span> <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L274" class="LineNr">274 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L275" class="LineNr">275 </span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L276" class="LineNr">276 </span> in >> std::hex >> result<span class="Delimiter">;</span> +<span id="L277" class="LineNr">277 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L278" class="LineNr">278 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"token '"</span> << s << <span class="Constant">"' is not a hex byte</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L279" class="LineNr">279 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> +<span id="L280" class="LineNr">280 </span> <span class="Delimiter">}</span> +<span id="L281" class="LineNr">281 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result > <span class="Constant">0xff</span> || result < -<span class="Constant">0x8f</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L282" class="LineNr">282 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"token '"</span> << s << <span class="Constant">"' is not a hex byte</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L283" class="LineNr">283 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> +<span id="L284" class="LineNr">284 </span> <span class="Delimiter">}</span> +<span id="L285" class="LineNr">285 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>><span class="Delimiter">(</span>result<span class="Delimiter">);</span> +<span id="L286" class="LineNr">286 </span><span class="Delimiter">}</span> +<span id="L287" class="LineNr">287 </span> +<span id="L288" class="LineNr">288 </span><span class="Delimiter">:(scenarios parse_and_load)</span> +<span id="L289" class="LineNr">289 </span><span class="Delimiter">:(scenario number_too_large)</span> +<span id="L290" class="LineNr">290 </span><span class="Special">% Hide_errors = true;</span> +<span id="L291" class="LineNr">291 </span>== <span class="Constant">0x1</span> +<span id="L292" class="LineNr">292 </span><span class="PreProc">0</span><span class="Constant">5</span> cab +<span id="L293" class="LineNr">293 </span><span class="traceContains">+error: token 'cab' is not a hex byte</span> +<span id="L294" class="LineNr">294 </span> +<span id="L295" class="LineNr">295 </span><span class="Delimiter">:(scenario invalid_hex)</span> +<span id="L296" class="LineNr">296 </span><span class="Special">% Hide_errors = true;</span> +<span id="L297" class="LineNr">297 </span>== <span class="Constant">0x1</span> +<span id="L298" class="LineNr">298 </span><span class="PreProc">0</span><span class="Constant">5</span> cx +<span id="L299" class="LineNr">299 </span><span class="traceContains">+error: token 'cx' is not a hex byte</span> <span id="L300" class="LineNr">300 </span> -<span id="L301" class="LineNr">301 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L302" class="LineNr">302 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"05"</span><span class="Delimiter">,</span> <span class="Constant">"add imm32 to R0 (EAX)"</span><span class="Delimiter">);</span> -<span id="L303" class="LineNr">303 </span> -<span id="L304" class="LineNr">304 </span><span class="Comment">//: our first opcode</span> -<span id="L305" class="LineNr">305 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L306" class="LineNr">306 </span><span class="Normal">case</span> <span class="Constant">0x05</span>: <span class="Delimiter">{</span> <span class="Comment">// add imm32 to EAX</span> -<span id="L307" class="LineNr">307 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L308" class="LineNr">308 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" to <a href='010---vm.cc.html#L23'>reg</a> EAX"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L309" class="LineNr">309 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> -<span id="L310" class="LineNr">310 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L311" class="LineNr">311 </span><span class="Delimiter">}</span> -<span id="L312" class="LineNr">312 </span> -<span id="L313" class="LineNr">313 </span><span class="Delimiter">:(code)</span> -<span id="L314" class="LineNr">314 </span><span class="Comment">// read a 32-bit int in little-endian order from the instruction stream</span> -<span id="L315" class="LineNr">315 </span><span class="Normal">int32_t</span> <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L316" class="LineNr">316 </span> <span class="Normal">int32_t</span> result = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L317" class="LineNr">317 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> -<span id="L318" class="LineNr">318 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">()</span><<<span class="Constant">16</span><span class="Delimiter">);</span> -<span id="L319" class="LineNr">319 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">()</span><<<span class="Constant">24</span><span class="Delimiter">);</span> -<span id="L320" class="LineNr">320 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L321" class="LineNr">321 </span><span class="Delimiter">}</span> -<span id="L322" class="LineNr">322 </span> -<span id="L323" class="LineNr">323 </span><span class="Delimiter">:(code)</span> -<span id="L324" class="LineNr">324 </span><span class="Normal">int32_t</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L325" class="LineNr">325 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L326" class="LineNr">326 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> -<span id="L327" class="LineNr">327 </span> in >> std::hex<span class="Delimiter">;</span> -<span id="L328" class="LineNr">328 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L329" class="LineNr">329 </span> <span class="Normal">int32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L330" class="LineNr">330 </span> in >> result<span class="Delimiter">;</span> -<span id="L331" class="LineNr">331 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L332" class="LineNr">332 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L333" class="LineNr">333 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L334" class="LineNr">334 </span> <span class="Delimiter">}</span> -<span id="L335" class="LineNr">335 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L336" class="LineNr">336 </span> <span class="Delimiter">}</span> -<span id="L337" class="LineNr">337 </span> <span class="Normal">uint32_t</span> uresult = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L338" class="LineNr">338 </span> in >> uresult<span class="Delimiter">;</span> -<span id="L339" class="LineNr">339 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L340" class="LineNr">340 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L341" class="LineNr">341 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L342" class="LineNr">342 </span> <span class="Delimiter">}</span> -<span id="L343" class="LineNr">343 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>uresult<span class="Delimiter">);</span> -<span id="L344" class="LineNr">344 </span><span class="Delimiter">}</span> -<span id="L345" class="LineNr">345 </span><span class="Delimiter">:(before "End Unit Tests")</span> -<span id="L346" class="LineNr">346 </span><span class="Normal">void</span> <a href='011run.cc.html#L346'>test_parse_int</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L347" class="LineNr">347 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0"</span><span class="Delimiter">));</span> -<span id="L348" class="LineNr">348 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0x0"</span><span class="Delimiter">));</span> -<span id="L349" class="LineNr">349 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0x0"</span><span class="Delimiter">));</span> -<span id="L350" class="LineNr">350 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">16</span><span class="Delimiter">,</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"10"</span><span class="Delimiter">));</span> <span class="Comment">// hex always</span> -<span id="L351" class="LineNr">351 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"-1"</span><span class="Delimiter">));</span> -<span id="L352" class="LineNr">352 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0xffffffff"</span><span class="Delimiter">));</span> -<span id="L353" class="LineNr">353 </span><span class="Delimiter">}</span> +<span id="L301" class="LineNr">301 </span><span class="Delimiter">:(scenario negative_number)</span> +<span id="L302" class="LineNr">302 </span>== <span class="Constant">0x1</span> +<span id="L303" class="LineNr">303 </span><span class="PreProc">0</span><span class="Constant">5</span> -<span class="Constant">12</span> +<span id="L304" class="LineNr">304 </span>$error: <span class="Constant">0</span> +<span id="L305" class="LineNr">305 </span> +<span id="L306" class="LineNr">306 </span><span class="Delimiter">:(scenario negative_number_too_small)</span> +<span id="L307" class="LineNr">307 </span><span class="Special">% Hide_errors = true;</span> +<span id="L308" class="LineNr">308 </span>== <span class="Constant">0x1</span> +<span id="L309" class="LineNr">309 </span><span class="PreProc">0</span><span class="Constant">5</span> -<span class="Constant">12345</span> +<span id="L310" class="LineNr">310 </span><span class="traceContains">+error: token '-12345' is not a hex byte</span> +<span id="L311" class="LineNr">311 </span> +<span id="L312" class="LineNr">312 </span><span class="Delimiter">:(scenario hex_prefix)</span> +<span id="L313" class="LineNr">313 </span>== <span class="Constant">0x1</span> +<span id="L314" class="LineNr">314 </span><span class="Constant">0x05</span> -<span class="Constant">0x12</span> +<span id="L315" class="LineNr">315 </span>$error: <span class="Constant">0</span> +<span id="L316" class="LineNr">316 </span> +<span id="L317" class="LineNr">317 </span><span class="Comment">//: helper for tests</span> +<span id="L318" class="LineNr">318 </span><span class="Delimiter">:(code)</span> +<span id="L319" class="LineNr">319 </span><span class="Normal">void</span> <a href='011run.cc.html#L319'>parse_and_load</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L320" class="LineNr">320 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> +<span id="L321" class="LineNr">321 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> +<span id="L322" class="LineNr">322 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L323" class="LineNr">323 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if any stage raises errors, stop immediately</span> +<span id="L324" class="LineNr">324 </span> <a href='011run.cc.html#L240'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L325" class="LineNr">325 </span><span class="Delimiter">}</span> +<span id="L326" class="LineNr">326 </span> +<span id="L327" class="LineNr">327 </span><span class="SalientComment">//:: run</span> +<span id="L328" class="LineNr">328 </span> +<span id="L329" class="LineNr">329 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L330" class="LineNr">330 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"05"</span><span class="Delimiter">,</span> <span class="Constant">"add imm32 to R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L331" class="LineNr">331 </span> +<span id="L332" class="LineNr">332 </span><span class="Comment">//: our first opcode</span> +<span id="L333" class="LineNr">333 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L334" class="LineNr">334 </span><span class="Normal">case</span> <span class="Constant">0x05</span>: <span class="Delimiter">{</span> <span class="Comment">// add imm32 to EAX</span> +<span id="L335" class="LineNr">335 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L336" class="LineNr">336 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << <span class="Constant">" to <a href='010---vm.cc.html#L23'>reg</a> EAX"</span> << end<span class="Delimiter">();</span> +<span id="L337" class="LineNr">337 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L338" class="LineNr">338 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L339" class="LineNr">339 </span><span class="Delimiter">}</span> +<span id="L340" class="LineNr">340 </span> +<span id="L341" class="LineNr">341 </span><span class="Delimiter">:(code)</span> +<span id="L342" class="LineNr">342 </span><span class="Comment">// read a 32-bit int in little-endian order from the instruction stream</span> +<span id="L343" class="LineNr">343 </span><span class="Normal">int32_t</span> <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L344" class="LineNr">344 </span> <span class="Normal">int32_t</span> result = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> +<span id="L345" class="LineNr">345 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L346" class="LineNr">346 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">()</span><<<span class="Constant">16</span><span class="Delimiter">);</span> +<span id="L347" class="LineNr">347 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">()</span><<<span class="Constant">24</span><span class="Delimiter">);</span> +<span id="L348" class="LineNr">348 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L349" class="LineNr">349 </span><span class="Delimiter">}</span> +<span id="L350" class="LineNr">350 </span> +<span id="L351" class="LineNr">351 </span><span class="SalientComment">//:: helpers</span> +<span id="L352" class="LineNr">352 </span> +<span id="L353" class="LineNr">353 </span><span class="Delimiter">:(code)</span> +<span id="L354" class="LineNr">354 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L355" class="LineNr">355 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L356" class="LineNr">356 </span> out << w<span class="Delimiter">.</span>data<span class="Delimiter">;</span> +<span id="L357" class="LineNr">357 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L358" class="LineNr">358 </span> out << <span class="Constant">" /"</span> << w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L359" class="LineNr">359 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L360" class="LineNr">360 </span><span class="Delimiter">}</span> +<span id="L361" class="LineNr">361 </span> +<span id="L362" class="LineNr">362 </span><span class="Normal">int32_t</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L363" class="LineNr">363 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L364" class="LineNr">364 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L365" class="LineNr">365 </span> in >> std::hex<span class="Delimiter">;</span> +<span id="L366" class="LineNr">366 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L367" class="LineNr">367 </span> <span class="Normal">int32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L368" class="LineNr">368 </span> in >> result<span class="Delimiter">;</span> +<span id="L369" class="LineNr">369 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L370" class="LineNr">370 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L371" class="LineNr">371 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L372" class="LineNr">372 </span> <span class="Delimiter">}</span> +<span id="L373" class="LineNr">373 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L374" class="LineNr">374 </span> <span class="Delimiter">}</span> +<span id="L375" class="LineNr">375 </span> <span class="Normal">uint32_t</span> uresult = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L376" class="LineNr">376 </span> in >> uresult<span class="Delimiter">;</span> +<span id="L377" class="LineNr">377 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L378" class="LineNr">378 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L379" class="LineNr">379 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L380" class="LineNr">380 </span> <span class="Delimiter">}</span> +<span id="L381" class="LineNr">381 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>uresult<span class="Delimiter">);</span> +<span id="L382" class="LineNr">382 </span><span class="Delimiter">}</span> +<span id="L383" class="LineNr">383 </span><span class="Delimiter">:(before "End Unit Tests")</span> +<span id="L384" class="LineNr">384 </span><span class="Normal">void</span> <a href='011run.cc.html#L384'>test_parse_int</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L385" class="LineNr">385 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0"</span><span class="Delimiter">));</span> +<span id="L386" class="LineNr">386 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0x0"</span><span class="Delimiter">));</span> +<span id="L387" class="LineNr">387 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0x0"</span><span class="Delimiter">));</span> +<span id="L388" class="LineNr">388 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">16</span><span class="Delimiter">,</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"10"</span><span class="Delimiter">));</span> <span class="Comment">// hex always</span> +<span id="L389" class="LineNr">389 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"-1"</span><span class="Delimiter">));</span> +<span id="L390" class="LineNr">390 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0xffffffff"</span><span class="Delimiter">));</span> +<span id="L391" class="LineNr">391 </span><span class="Delimiter">}</span> </pre> </body> </html> diff --git a/html/subx/012elf.cc.html b/html/subx/012elf.cc.html index fafd6df5..919c4689 100644 --- a/html/subx/012elf.cc.html +++ b/html/subx/012elf.cc.html @@ -68,161 +68,169 @@ if ('onhashchange' in window) { <span id="L9" class="LineNr"> 9 </span> assert<span class="Delimiter">(</span>argc > <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L10" class="LineNr"> 10 </span> <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">();</span> <span id="L11" class="LineNr"> 11 </span> cerr << std::hex<span class="Delimiter">;</span> -<span id="L12" class="LineNr"> 12 </span> <a href='012elf.cc.html#L131'>initialize_mem</a><span class="Delimiter">();</span> -<span id="L13" class="LineNr"> 13 </span> Mem_offset = <a href='012elf.cc.html#L126'>CODE_START</a><span class="Delimiter">;</span> -<span id="L14" class="LineNr"> 14 </span> <a href='012elf.cc.html#L22'>load_elf</a><span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">,</span> argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span> -<span id="L15" class="LineNr"> 15 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a> < <a href='010---vm.cc.html#L95'>End_of_program</a><span class="Delimiter">)</span> <span class="Comment">// weak final-gasp termination check</span> -<span id="L16" class="LineNr"> 16 </span> <a href='010---vm.cc.html#L150'>run_one_instruction</a><span class="Delimiter">();</span> -<span id="L17" class="LineNr"> 17 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"executed past <a href='003trace.cc.html#L230'>end</a> of the world: "</span> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">" vs "</span> << <a href='010---vm.cc.html#L95'>End_of_program</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L18" class="LineNr"> 18 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">}</span> -<span id="L20" class="LineNr"> 20 </span> -<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">:(code)</span> -<span id="L22" class="LineNr"> 22 </span><span class="Normal">void</span> <a href='012elf.cc.html#L22'>load_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> string& filename<span class="Delimiter">,</span> <span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L23" class="LineNr"> 23 </span> <span class="Normal">int</span> fd = open<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> O_RDONLY<span class="Delimiter">);</span> -<span id="L24" class="LineNr"> 24 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fd < <span class="Constant">0</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << filename<span class="Delimiter">.</span>c_str<span class="Delimiter">()</span> << <span class="Constant">": open"</span> << <a href='012elf.cc.html#L144'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L25" class="LineNr"> 25 </span> <span class="Normal">off_t</span> size = lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_END</span><span class="Delimiter">);</span> -<span id="L26" class="LineNr"> 26 </span> lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_SET</span><span class="Delimiter">);</span> -<span id="L27" class="LineNr"> 27 </span> <span class="Normal">uint8_t</span>* elf_contents = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>malloc<span class="Delimiter">(</span>size<span class="Delimiter">));</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents == <span class="Constant">NULL</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"malloc("</span> << size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L144'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L29" class="LineNr"> 29 </span> <span class="Normal">ssize_t</span> read_size = read<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> -<span id="L30" class="LineNr"> 30 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size != read_size<span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"read → "</span> << size << <span class="Constant">" (!= "</span> << read_size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L144'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L31" class="LineNr"> 31 </span> <a href='012elf.cc.html#L35'>load_elf_contents</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">,</span> argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span> -<span id="L32" class="LineNr"> 32 </span> free<span class="Delimiter">(</span>elf_contents<span class="Delimiter">);</span> -<span id="L33" class="LineNr"> 33 </span><span class="Delimiter">}</span> -<span id="L34" class="LineNr"> 34 </span> -<span id="L35" class="LineNr"> 35 </span><span class="Normal">void</span> <a href='012elf.cc.html#L35'>load_elf_contents</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L36" class="LineNr"> 36 </span> <span class="Normal">uint8_t</span> magic[<span class="Constant">5</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span> -<span id="L37" class="LineNr"> 37 </span> memcpy<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> -<span id="L38" class="LineNr"> 38 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>memcmp<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\177</span><span class="Constant">ELF"</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> -<span id="L39" class="LineNr"> 39 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid ELF file; starts with </span><span class="cSpecial">\"</span><span class="Constant">"</span> << magic << <span class="Constant">'"'</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L40" class="LineNr"> 40 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">4</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> -<span id="L41" class="LineNr"> 41 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Only 32-bit ELF files (4-byte words; virtual addresses up to 4GB) supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">5</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> -<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Only little-endian ELF files supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Comment">// unused: remaining 10 bytes of e_ident</span> -<span id="L45" class="LineNr"> 45 </span> <span class="Normal">uint32_t</span> e_machine_type = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">16</span>]<span class="Delimiter">);</span> -<span id="L46" class="LineNr"> 46 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_machine_type != <span class="Constant">0x00030002</span><span class="Delimiter">)</span> -<span id="L47" class="LineNr"> 47 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"ELF type/machine 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << e_machine_type << <span class="Constant">" isn't i386 executable</span><span class="cSpecial">\n</span><span class="Constant">"</span> << die<span class="Delimiter">();</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Comment">// unused: e_version. We only support version 1, and later versions will be backwards compatible.</span> -<span id="L49" class="LineNr"> 49 </span> <span class="Normal">uint32_t</span> e_entry = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">24</span>]<span class="Delimiter">);</span> -<span id="L50" class="LineNr"> 50 </span> <span class="Normal">uint32_t</span> e_phoff = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">28</span>]<span class="Delimiter">);</span> -<span id="L51" class="LineNr"> 51 </span> <span class="Comment">// unused: e_shoff</span> -<span id="L52" class="LineNr"> 52 </span> <span class="Comment">// unused: e_flags</span> -<span id="L53" class="LineNr"> 53 </span> <span class="Normal">uint32_t</span> e_ehsize = <a href='012elf.cc.html#L139'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">40</span>]<span class="Delimiter">);</span> -<span id="L54" class="LineNr"> 54 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize < <span class="Constant">52</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid binary; ELF header too small</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Normal">uint32_t</span> e_phentsize = <a href='012elf.cc.html#L139'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">42</span>]<span class="Delimiter">);</span> -<span id="L56" class="LineNr"> 56 </span> <span class="Normal">uint32_t</span> e_phnum = <a href='012elf.cc.html#L139'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">44</span>]<span class="Delimiter">);</span> -<span id="L57" class="LineNr"> 57 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << e_phnum << <span class="Constant">" entries in the <a href='011run.cc.html#L99'>program</a> header, each "</span> << e_phentsize << <span class="Constant">" bytes long"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L58" class="LineNr"> 58 </span> <span class="Comment">// unused: e_shentsize</span> -<span id="L59" class="LineNr"> 59 </span> <span class="Comment">// unused: e_shnum</span> -<span id="L60" class="LineNr"> 60 </span> <span class="Comment">// unused: e_shstrndx</span> -<span id="L61" class="LineNr"> 61 </span> -<span id="L62" class="LineNr"> 62 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < e_phnum<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> -<span id="L63" class="LineNr"> 63 </span> <a href='012elf.cc.html#L92'>load_segment_from_program_header</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">,</span> e_phoff + i*e_phentsize<span class="Delimiter">,</span> e_ehsize<span class="Delimiter">);</span> -<span id="L64" class="LineNr"> 64 </span> -<span id="L65" class="LineNr"> 65 </span> <span class="Comment">// initialize code and stack</span> -<span id="L66" class="LineNr"> 66 </span> Reg[ESP]<span class="Delimiter">.</span>u = <a href='012elf.cc.html#L128'>AFTER_STACK</a><span class="Delimiter">;</span> -<span id="L67" class="LineNr"> 67 </span> Reg[EBP]<span class="Delimiter">.</span>u = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L68" class="LineNr"> 68 </span> <a href='010---vm.cc.html#L29'>EIP</a> = e_entry<span class="Delimiter">;</span> -<span id="L69" class="LineNr"> 69 </span> -<span id="L70" class="LineNr"> 70 </span> <span class="Comment">// initialize args on stack</span> -<span id="L71" class="LineNr"> 71 </span> <span class="Comment">// no envp for now</span> -<span id="L72" class="LineNr"> 72 </span> <span class="Comment">// we wastefully use a separate page of memory for argv</span> -<span id="L73" class="LineNr"> 73 </span> <span class="Normal">uint32_t</span> argv_data = <a href='012elf.cc.html#L129'>ARGV_DATA_SEGMENT</a><span class="Delimiter">;</span> -<span id="L74" class="LineNr"> 74 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = argc-<span class="Constant">1</span><span class="Delimiter">;</span> i >= <span class="Comment">/*</span><span class="Comment">skip 'subx_bin' and 'run'</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span> --i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L75" class="LineNr"> 75 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span>argv_data<span class="Delimiter">);</span> -<span id="L76" class="LineNr"> 76 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j <= strlen<span class="Delimiter">(</span>argv[i]<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L77" class="LineNr"> 77 </span> <a href='010---vm.cc.html#L133'>write_mem_u8</a><span class="Delimiter">(</span>argv_data<span class="Delimiter">,</span> argv[i][j]<span class="Delimiter">);</span> -<span id="L78" class="LineNr"> 78 </span> argv_data += <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">char</span><span class="Delimiter">);</span> -<span id="L79" class="LineNr"> 79 </span> assert<span class="Delimiter">(</span>argv_data < <a href='012elf.cc.html#L129'>ARGV_DATA_SEGMENT</a> + <a href='012elf.cc.html#L127'>SEGMENT_SIZE</a><span class="Delimiter">);</span> -<span id="L80" class="LineNr"> 80 </span> <span class="Delimiter">}</span> -<span id="L81" class="LineNr"> 81 </span> <span class="Delimiter">}</span> -<span id="L82" class="LineNr"> 82 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span>argc-<span class="Comment">/*</span><span class="Comment">skip 'subx_bin' and 'run'</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">);</span> -<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">}</span> -<span id="L84" class="LineNr"> 84 </span> -<span id="L85" class="LineNr"> 85 </span><span class="Normal">void</span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L86" class="LineNr"> 86 </span> Reg[ESP]<span class="Delimiter">.</span>u -= <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L87" class="LineNr"> 87 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L88" class="LineNr"> 88 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pushing value 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << val << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L89" class="LineNr"> 89 </span> <a href='010---vm.cc.html#L139'>write_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> val<span class="Delimiter">);</span> -<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">}</span> -<span id="L91" class="LineNr"> 91 </span> -<span id="L92" class="LineNr"> 92 </span><span class="Normal">void</span> <a href='012elf.cc.html#L92'>load_segment_from_program_header</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> offset<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> e_ehsize<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L93" class="LineNr"> 93 </span> <span class="Normal">uint32_t</span> p_type = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset]<span class="Delimiter">);</span> -<span id="L94" class="LineNr"> 94 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"program header at offset "</span> << offset << <span class="Constant">": type "</span> << p_type << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L95" class="LineNr"> 95 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_type != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L96" class="LineNr"> 96 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"ignoring segment at offset "</span> << offset << <span class="Constant">" of non PT_LOAD type "</span> << p_type << <span class="Constant">" (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)"</span> << end<span class="Delimiter">();</span> -<span id="L97" class="LineNr"> 97 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L98" class="LineNr"> 98 </span> <span class="Delimiter">}</span> -<span id="L99" class="LineNr"> 99 </span> <span class="Normal">uint32_t</span> p_offset = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">4</span>]<span class="Delimiter">);</span> -<span id="L100" class="LineNr">100 </span> <span class="Normal">uint32_t</span> p_vaddr = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">8</span>]<span class="Delimiter">);</span> -<span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize > p_vaddr<span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid binary; <a href='011run.cc.html#L99'>program</a> header overlaps ELF header</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L102" class="LineNr">102 </span> <span class="Comment">// unused: p_paddr</span> -<span id="L103" class="LineNr">103 </span> <span class="Normal">uint32_t</span> p_filesz = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">16</span>]<span class="Delimiter">);</span> -<span id="L104" class="LineNr">104 </span> <span class="Normal">uint32_t</span> p_memsz = <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">20</span>]<span class="Delimiter">);</span> -<span id="L105" class="LineNr">105 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_filesz != p_memsz<span class="Delimiter">)</span> -<span id="L106" class="LineNr">106 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Can't handle segments where p_filesz != p_memsz (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << die<span class="Delimiter">();</span> -<span id="L107" class="LineNr">107 </span> -<span id="L108" class="LineNr">108 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset + p_filesz > size<span class="Delimiter">)</span> -<span id="L109" class="LineNr">109 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid binary; segment at offset "</span> << offset << <span class="Constant">" is too large: wants to <a href='003trace.cc.html#L230'>end</a> at "</span> << p_offset+p_filesz << <span class="Constant">" but the file ends at "</span> << size << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L153'>die</a><span class="Delimiter">();</span> -<span id="L110" class="LineNr">110 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>size<span class="Delimiter">()</span> < p_vaddr + p_memsz<span class="Delimiter">)</span> -<span id="L111" class="LineNr">111 </span> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>p_vaddr + p_memsz<span class="Delimiter">);</span> -<span id="L112" class="LineNr">112 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size > p_memsz<span class="Delimiter">)</span> size = p_memsz<span class="Delimiter">;</span> -<span id="L113" class="LineNr">113 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"blitting file offsets ("</span> << p_offset << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_offset+p_filesz<span class="Delimiter">)</span> << <span class="Constant">") to addresses ("</span> << p_vaddr << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_vaddr+p_memsz<span class="Delimiter">)</span> << <span class="Constant">')'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L114" class="LineNr">114 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p_filesz<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> -<span id="L115" class="LineNr">115 </span> <a href='010---vm.cc.html#L133'>write_mem_u8</a><span class="Delimiter">(</span>p_vaddr+i<span class="Delimiter">,</span> elf_contents[p_offset+i]<span class="Delimiter">);</span> -<span id="L116" class="LineNr">116 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L95'>End_of_program</a> < p_vaddr+p_memsz<span class="Delimiter">)</span> -<span id="L117" class="LineNr">117 </span> <a href='010---vm.cc.html#L95'>End_of_program</a> = p_vaddr+p_memsz<span class="Delimiter">;</span> -<span id="L118" class="LineNr">118 </span><span class="Delimiter">}</span> -<span id="L119" class="LineNr">119 </span> -<span id="L120" class="LineNr">120 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L121" class="LineNr">121 </span><span class="Comment">// Very primitive/fixed/insecure ELF segments for now.</span> -<span id="L122" class="LineNr">122 </span><span class="Comment">// code: 0x08048000 -> 0x08048fff</span> -<span id="L123" class="LineNr">123 </span><span class="Comment">// data: 0x08049000 -> 0x08049fff</span> -<span id="L124" class="LineNr">124 </span><span class="Comment">// heap: 0x0804a000 -> 0x0804afff</span> -<span id="L125" class="LineNr">125 </span><span class="Comment">// stack: 0x0804bfff -> 0x0804b000 (downward)</span> -<span id="L126" class="LineNr">126 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L126'>CODE_START</a> = <span class="Constant">0x08048000</span><span class="Delimiter">;</span> -<span id="L127" class="LineNr">127 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L127'>SEGMENT_SIZE</a> = <span class="Constant">0x1000</span><span class="Delimiter">;</span> -<span id="L128" class="LineNr">128 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L128'>AFTER_STACK</a> = <span class="Constant">0x0804c000</span><span class="Delimiter">;</span> -<span id="L129" class="LineNr">129 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L129'>ARGV_DATA_SEGMENT</a> = <span class="Constant">0x0804e000</span><span class="Delimiter">;</span> -<span id="L130" class="LineNr">130 </span><span class="Delimiter">:(code)</span> -<span id="L131" class="LineNr">131 </span><span class="Normal">void</span> <a href='012elf.cc.html#L131'>initialize_mem</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L132" class="LineNr">132 </span> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><a href='012elf.cc.html#L128'>AFTER_STACK</a> - <a href='012elf.cc.html#L126'>CODE_START</a><span class="Delimiter">);</span> -<span id="L133" class="LineNr">133 </span><span class="Delimiter">}</span> -<span id="L134" class="LineNr">134 </span> -<span id="L135" class="LineNr">135 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='012elf.cc.html#L135'>u32_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L136" class="LineNr">136 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span> | p[<span class="Constant">2</span>] << <span class="Constant">16</span> | p[<span class="Constant">3</span>] << <span class="Constant">24</span><span class="Delimiter">;</span> -<span id="L137" class="LineNr">137 </span><span class="Delimiter">}</span> -<span id="L138" class="LineNr">138 </span> -<span id="L139" class="LineNr">139 </span><span class="Normal">inline</span> <span class="Normal">uint16_t</span> <a href='012elf.cc.html#L139'>u16_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L140" class="LineNr">140 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span><span class="Delimiter">;</span> -<span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span> -<span id="L142" class="LineNr">142 </span> -<span id="L143" class="LineNr">143 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L144" class="LineNr">144 </span><span class="Normal">struct</span> <a href='012elf.cc.html#L144'>perr</a> <span class="Delimiter">{};</span> -<span id="L145" class="LineNr">145 </span><span class="Delimiter">:(code)</span> -<span id="L146" class="LineNr">146 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> <a href='012elf.cc.html#L144'>perr</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L147" class="LineNr">147 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>errno<span class="Delimiter">)</span> -<span id="L148" class="LineNr">148 </span> os << <span class="Constant">": "</span> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">);</span> -<span id="L149" class="LineNr">149 </span> <span class="Identifier">return</span> os<span class="Delimiter">;</span> -<span id="L150" class="LineNr">150 </span><span class="Delimiter">}</span> -<span id="L151" class="LineNr">151 </span> -<span id="L152" class="LineNr">152 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L153" class="LineNr">153 </span><span class="Normal">struct</span> <a href='012elf.cc.html#L153'>die</a> <span class="Delimiter">{};</span> -<span id="L154" class="LineNr">154 </span><span class="Delimiter">:(code)</span> -<span id="L155" class="LineNr">155 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">,</span> <a href='012elf.cc.html#L153'>die</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L156" class="LineNr">156 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L147'>newline</a><span class="Delimiter">();</span> -<span id="L157" class="LineNr">157 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L12" class="LineNr"> 12 </span> <a href='012elf.cc.html#L20'>load_elf</a><span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">,</span> argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span> +<span id="L13" class="LineNr"> 13 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a> < <a href='010---vm.cc.html#L163'>End_of_program</a><span class="Delimiter">)</span> <span class="Comment">// weak final-gasp termination check</span> +<span id="L14" class="LineNr"> 14 </span> <a href='010---vm.cc.html#L258'>run_one_instruction</a><span class="Delimiter">();</span> +<span id="L15" class="LineNr"> 15 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"executed past end of the world: "</span> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">" vs "</span> << <a href='010---vm.cc.html#L163'>End_of_program</a> << end<span class="Delimiter">();</span> +<span id="L16" class="LineNr"> 16 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">}</span> +<span id="L18" class="LineNr"> 18 </span> +<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(code)</span> +<span id="L20" class="LineNr"> 20 </span><span class="Normal">void</span> <a href='012elf.cc.html#L20'>load_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> string& filename<span class="Delimiter">,</span> <span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Normal">int</span> fd = open<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> O_RDONLY<span class="Delimiter">);</span> +<span id="L22" class="LineNr"> 22 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fd < <span class="Constant">0</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << filename<span class="Delimiter">.</span>c_str<span class="Delimiter">()</span> << <span class="Constant">": open"</span> << <a href='012elf.cc.html#L152'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Normal">off_t</span> size = lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_END</span><span class="Delimiter">);</span> +<span id="L24" class="LineNr"> 24 </span> lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_SET</span><span class="Delimiter">);</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">uint8_t</span>* elf_contents = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>malloc<span class="Delimiter">(</span>size<span class="Delimiter">));</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents == <span class="Constant">NULL</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"malloc("</span> << size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L152'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L27" class="LineNr"> 27 </span> <span class="Normal">ssize_t</span> read_size = read<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size != read_size<span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"read → "</span> << size << <span class="Constant">" (!= "</span> << read_size << <span class="Constant">')'</span> << <a href='012elf.cc.html#L152'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span> <a href='012elf.cc.html#L33'>load_elf_contents</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">,</span> argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span> +<span id="L30" class="LineNr"> 30 </span> free<span class="Delimiter">(</span>elf_contents<span class="Delimiter">);</span> +<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span> +<span id="L32" class="LineNr"> 32 </span> +<span id="L33" class="LineNr"> 33 </span><span class="Normal">void</span> <a href='012elf.cc.html#L33'>load_elf_contents</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Normal">uint8_t</span> magic[<span class="Constant">5</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span> +<span id="L35" class="LineNr"> 35 </span> memcpy<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>memcmp<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\177</span><span class="Constant">ELF"</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> +<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid ELF file; starts with </span><span class="cSpecial">\"</span><span class="Constant">"</span> << magic << <span class="Constant">'"'</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">4</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> +<span id="L39" class="LineNr"> 39 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Only 32-bit ELF files (4-byte words; virtual addresses up to 4GB) supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">5</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> +<span id="L41" class="LineNr"> 41 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Only little-endian ELF files supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Comment">// unused: remaining 10 bytes of e_ident</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Normal">uint32_t</span> e_machine_type = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">16</span>]<span class="Delimiter">);</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_machine_type != <span class="Constant">0x00030002</span><span class="Delimiter">)</span> +<span id="L45" class="LineNr"> 45 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"ELF type/machine 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << e_machine_type << <span class="Constant">" isn't i386 executable</span><span class="cSpecial">\n</span><span class="Constant">"</span> << die<span class="Delimiter">();</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Comment">// unused: e_version. We only support version 1, and later versions will be backwards compatible.</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Normal">uint32_t</span> e_entry = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">24</span>]<span class="Delimiter">);</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint32_t</span> e_phoff = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">28</span>]<span class="Delimiter">);</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Comment">// unused: e_shoff</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Comment">// unused: e_flags</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Normal">uint32_t</span> e_ehsize = <a href='012elf.cc.html#L147'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">40</span>]<span class="Delimiter">);</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize < <span class="Constant">52</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid binary; ELF header too small</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">uint32_t</span> e_phentsize = <a href='012elf.cc.html#L147'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">42</span>]<span class="Delimiter">);</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Normal">uint32_t</span> e_phnum = <a href='012elf.cc.html#L147'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">44</span>]<span class="Delimiter">);</span> +<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << e_phnum << <span class="Constant">" entries in the <a href='011run.cc.html#L99'>program</a> header, each "</span> << e_phentsize << <span class="Constant">" bytes long"</span> << end<span class="Delimiter">();</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Comment">// unused: e_shentsize</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Comment">// unused: e_shnum</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment">// unused: e_shstrndx</span> +<span id="L59" class="LineNr"> 59 </span> +<span id="L60" class="LineNr"> 60 </span> set<<span class="Normal">uint32_t</span>> overlap<span class="Delimiter">;</span> <span class="Comment">// to detect overlapping segments</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < e_phnum<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> +<span id="L62" class="LineNr"> 62 </span> <a href='012elf.cc.html#L96'>load_segment_from_program_header</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> i<span class="Delimiter">,</span> size<span class="Delimiter">,</span> e_phoff + i*e_phentsize<span class="Delimiter">,</span> e_ehsize<span class="Delimiter">,</span> overlap<span class="Delimiter">);</span> +<span id="L63" class="LineNr"> 63 </span> +<span id="L64" class="LineNr"> 64 </span> <span class="Comment">// initialize code and stack</span> +<span id="L65" class="LineNr"> 65 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='012elf.cc.html#L139'>STACK_SEGMENT</a><span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L66" class="LineNr"> 66 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span><a href='012elf.cc.html#L139'>STACK_SEGMENT</a><span class="Delimiter">));</span> +<span id="L67" class="LineNr"> 67 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='012elf.cc.html#L140'>AFTER_STACK</a><span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L68" class="LineNr"> 68 </span> Reg[ESP]<span class="Delimiter">.</span>u = <a href='012elf.cc.html#L140'>AFTER_STACK</a><span class="Delimiter">;</span> +<span id="L69" class="LineNr"> 69 </span> Reg[EBP]<span class="Delimiter">.</span>u = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L70" class="LineNr"> 70 </span> <a href='010---vm.cc.html#L29'>EIP</a> = e_entry<span class="Delimiter">;</span> +<span id="L71" class="LineNr"> 71 </span> +<span id="L72" class="LineNr"> 72 </span> <span class="Comment">// initialize args on stack</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Comment">// no envp for now</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Comment">// we wastefully use a separate page of memory for argv</span> +<span id="L75" class="LineNr"> 75 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span><a href='012elf.cc.html#L141'>ARGV_DATA_SEGMENT</a><span class="Delimiter">));</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Normal">uint32_t</span> argv_data = <a href='012elf.cc.html#L141'>ARGV_DATA_SEGMENT</a><span class="Delimiter">;</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = argc-<span class="Constant">1</span><span class="Delimiter">;</span> i >= <span class="Comment">/*</span><span class="Comment">skip 'subx_bin' and 'run'</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span> --i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L78" class="LineNr"> 78 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span>argv_data<span class="Delimiter">);</span> +<span id="L79" class="LineNr"> 79 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j <= strlen<span class="Delimiter">(</span>argv[i]<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L80" class="LineNr"> 80 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span>argv_data<span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span> <span class="Comment">// don't bother comparing ARGV and STACK</span> +<span id="L81" class="LineNr"> 81 </span> <a href='010---vm.cc.html#L225'>write_mem_u8</a><span class="Delimiter">(</span>argv_data<span class="Delimiter">,</span> argv[i][j]<span class="Delimiter">);</span> +<span id="L82" class="LineNr"> 82 </span> argv_data += <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">char</span><span class="Delimiter">);</span> +<span id="L83" class="LineNr"> 83 </span> assert<span class="Delimiter">(</span>argv_data < <a href='012elf.cc.html#L141'>ARGV_DATA_SEGMENT</a> + <a href='012elf.cc.html#L135'>SEGMENT_SIZE</a><span class="Delimiter">);</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">}</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">}</span> +<span id="L86" class="LineNr"> 86 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span>argc-<span class="Comment">/*</span><span class="Comment">skip 'subx_bin' and 'run'</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L87" class="LineNr"> 87 </span><span class="Delimiter">}</span> +<span id="L88" class="LineNr"> 88 </span> +<span id="L89" class="LineNr"> 89 </span><span class="Normal">void</span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L90" class="LineNr"> 90 </span> Reg[ESP]<span class="Delimiter">.</span>u -= <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L91" class="LineNr"> 91 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pushing value 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << val << end<span class="Delimiter">();</span> +<span id="L93" class="LineNr"> 93 </span> <a href='010---vm.cc.html#L233'>write_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> val<span class="Delimiter">);</span> +<span id="L94" class="LineNr"> 94 </span><span class="Delimiter">}</span> +<span id="L95" class="LineNr"> 95 </span> +<span id="L96" class="LineNr"> 96 </span><span class="Normal">void</span> <a href='012elf.cc.html#L96'>load_segment_from_program_header</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">int</span> segment_index<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> offset<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> e_ehsize<span class="Delimiter">,</span> set<<span class="Normal">uint32_t</span>>& overlap<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Normal">uint32_t</span> p_type = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset]<span class="Delimiter">);</span> +<span id="L98" class="LineNr"> 98 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"program header at offset "</span> << offset << <span class="Constant">": type "</span> << p_type << end<span class="Delimiter">();</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_type != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L100" class="LineNr">100 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"ignoring segment at offset "</span> << offset << <span class="Constant">" of non PT_LOAD type "</span> << p_type << <span class="Constant">" (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)"</span> << end<span class="Delimiter">();</span> +<span id="L101" class="LineNr">101 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L102" class="LineNr">102 </span> <span class="Delimiter">}</span> +<span id="L103" class="LineNr">103 </span> <span class="Normal">uint32_t</span> p_offset = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">4</span>]<span class="Delimiter">);</span> +<span id="L104" class="LineNr">104 </span> <span class="Normal">uint32_t</span> p_vaddr = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">8</span>]<span class="Delimiter">);</span> +<span id="L105" class="LineNr">105 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize > p_vaddr<span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid binary; <a href='011run.cc.html#L99'>program</a> header overlaps ELF header</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L106" class="LineNr">106 </span> <span class="Comment">// unused: p_paddr</span> +<span id="L107" class="LineNr">107 </span> <span class="Normal">uint32_t</span> p_filesz = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">16</span>]<span class="Delimiter">);</span> +<span id="L108" class="LineNr">108 </span> <span class="Normal">uint32_t</span> p_memsz = <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">20</span>]<span class="Delimiter">);</span> +<span id="L109" class="LineNr">109 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_filesz != p_memsz<span class="Delimiter">)</span> +<span id="L110" class="LineNr">110 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Can't yet handle segments where p_filesz != p_memsz (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << die<span class="Delimiter">();</span> +<span id="L111" class="LineNr">111 </span> +<span id="L112" class="LineNr">112 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset + p_filesz > size<span class="Delimiter">)</span> +<span id="L113" class="LineNr">113 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Invalid binary; segment at offset "</span> << offset << <span class="Constant">" is too large: wants to end at "</span> << p_offset+p_filesz << <span class="Constant">" but the file ends at "</span> << size << <span class="cSpecial">'\n'</span> << <a href='012elf.cc.html#L161'>die</a><span class="Delimiter">();</span> +<span id="L114" class="LineNr">114 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_memsz > <a href='010---vm.cc.html#L93'>INITIAL_SEGMENT_SIZE</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L115" class="LineNr">115 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Code segment too small for SubX; for now please manually increase INITIAL_SEGMENT_SIZE.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L116" class="LineNr">116 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L117" class="LineNr">117 </span> <span class="Delimiter">}</span> +<span id="L118" class="LineNr">118 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"blitting file offsets ("</span> << p_offset << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_offset+p_filesz<span class="Delimiter">)</span> << <span class="Constant">") to addresses ("</span> << p_vaddr << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_vaddr+p_memsz<span class="Delimiter">)</span> << <span class="Constant">')'</span> << end<span class="Delimiter">();</span> +<span id="L119" class="LineNr">119 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size > p_memsz<span class="Delimiter">)</span> size = p_memsz<span class="Delimiter">;</span> +<span id="L120" class="LineNr">120 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span>p_vaddr<span class="Delimiter">));</span> +<span id="L121" class="LineNr">121 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p_filesz<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L122" class="LineNr">122 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span>p_vaddr+i<span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L123" class="LineNr">123 </span> <a href='010---vm.cc.html#L225'>write_mem_u8</a><span class="Delimiter">(</span>p_vaddr+i<span class="Delimiter">,</span> elf_contents[p_offset+i]<span class="Delimiter">);</span> +<span id="L124" class="LineNr">124 </span> overlap<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>p_vaddr+i<span class="Delimiter">);</span> +<span id="L125" class="LineNr">125 </span> <span class="Delimiter">}</span> +<span id="L126" class="LineNr">126 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>segment_index == <span class="Constant">0</span> && <a href='010---vm.cc.html#L163'>End_of_program</a> < p_vaddr+p_memsz<span class="Delimiter">)</span> +<span id="L127" class="LineNr">127 </span> <a href='010---vm.cc.html#L163'>End_of_program</a> = p_vaddr+p_memsz<span class="Delimiter">;</span> +<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span> +<span id="L129" class="LineNr">129 </span> +<span id="L130" class="LineNr">130 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L131" class="LineNr">131 </span><span class="Comment">// Very primitive/fixed/insecure ELF segments for now.</span> +<span id="L132" class="LineNr">132 </span><span class="Comment">// code: 0x08048000 -> 0x08048fff</span> +<span id="L133" class="LineNr">133 </span><span class="Comment">// data/heap: 0x08050000 -> 0x08050fff</span> +<span id="L134" class="LineNr">134 </span><span class="Comment">// stack: 0x08060fff -> 0x08060000 (downward)</span> +<span id="L135" class="LineNr">135 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L135'>SEGMENT_SIZE</a> = <span class="Constant">0x1000</span><span class="Delimiter">;</span> +<span id="L136" class="LineNr">136 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L136'>CODE_START</a> = <span class="Constant">0x08048000</span><span class="Delimiter">;</span> +<span id="L137" class="LineNr">137 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L137'>DATA_SEGMENT</a> = <span class="Constant">0x08050000</span><span class="Delimiter">;</span> +<span id="L138" class="LineNr">138 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L138'>HEAP_SEGMENT</a> = <a href='012elf.cc.html#L137'>DATA_SEGMENT</a><span class="Delimiter">;</span> +<span id="L139" class="LineNr">139 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L139'>STACK_SEGMENT</a> = <span class="Constant">0x08060000</span><span class="Delimiter">;</span> +<span id="L140" class="LineNr">140 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L140'>AFTER_STACK</a> = <span class="Constant">0x08060ffc</span><span class="Delimiter">;</span> <span class="Comment">// forget final word because of the off-by-one with INITIAL_SEGMENT_SIZE;</span> +<span id="L141" class="LineNr">141 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='012elf.cc.html#L141'>ARGV_DATA_SEGMENT</a> = <span class="Constant">0x08070000</span><span class="Delimiter">;</span> +<span id="L142" class="LineNr">142 </span><span class="Delimiter">:(code)</span> +<span id="L143" class="LineNr">143 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='012elf.cc.html#L143'>u32_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L144" class="LineNr">144 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span> | p[<span class="Constant">2</span>] << <span class="Constant">16</span> | p[<span class="Constant">3</span>] << <span class="Constant">24</span><span class="Delimiter">;</span> +<span id="L145" class="LineNr">145 </span><span class="Delimiter">}</span> +<span id="L146" class="LineNr">146 </span> +<span id="L147" class="LineNr">147 </span><span class="Normal">inline</span> <span class="Normal">uint16_t</span> <a href='012elf.cc.html#L147'>u16_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L148" class="LineNr">148 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span><span class="Delimiter">;</span> +<span id="L149" class="LineNr">149 </span><span class="Delimiter">}</span> +<span id="L150" class="LineNr">150 </span> +<span id="L151" class="LineNr">151 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L152" class="LineNr">152 </span><span class="Normal">struct</span> <a href='012elf.cc.html#L152'>perr</a> <span class="Delimiter">{};</span> +<span id="L153" class="LineNr">153 </span><span class="Delimiter">:(code)</span> +<span id="L154" class="LineNr">154 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> <a href='012elf.cc.html#L152'>perr</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L155" class="LineNr">155 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>errno<span class="Delimiter">)</span> +<span id="L156" class="LineNr">156 </span> os << <span class="Constant">": "</span> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">);</span> +<span id="L157" class="LineNr">157 </span> <span class="Identifier">return</span> os<span class="Delimiter">;</span> <span id="L158" class="LineNr">158 </span><span class="Delimiter">}</span> <span id="L159" class="LineNr">159 </span> -<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L161" class="LineNr">161 </span><span class="Comment">#include <sys/types.h></span> -<span id="L162" class="LineNr">162 </span><span class="Comment">#include <sys/stat.h></span> -<span id="L163" class="LineNr">163 </span><span class="Comment">#include <fcntl.h></span> -<span id="L164" class="LineNr">164 </span><span class="Comment">#include <stdarg.h></span> -<span id="L165" class="LineNr">165 </span><span class="Comment">#include <errno.h></span> -<span id="L166" class="LineNr">166 </span><span class="Comment">#include <unistd.h></span> +<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L161" class="LineNr">161 </span><span class="Normal">struct</span> <a href='012elf.cc.html#L161'>die</a> <span class="Delimiter">{};</span> +<span id="L162" class="LineNr">162 </span><span class="Delimiter">:(code)</span> +<span id="L163" class="LineNr">163 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">,</span> <a href='012elf.cc.html#L161'>die</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L164" class="LineNr">164 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L175'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L147'>newline</a><span class="Delimiter">();</span> +<span id="L165" class="LineNr">165 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L166" class="LineNr">166 </span><span class="Delimiter">}</span> +<span id="L167" class="LineNr">167 </span> +<span id="L168" class="LineNr">168 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L169" class="LineNr">169 </span><span class="Comment">#include <sys/types.h></span> +<span id="L170" class="LineNr">170 </span><span class="Comment">#include <sys/stat.h></span> +<span id="L171" class="LineNr">171 </span><span class="Comment">#include <fcntl.h></span> +<span id="L172" class="LineNr">172 </span><span class="Comment">#include <stdarg.h></span> +<span id="L173" class="LineNr">173 </span><span class="Comment">#include <errno.h></span> +<span id="L174" class="LineNr">174 </span><span class="Comment">#include <unistd.h></span> </pre> </body> </html> diff --git a/html/subx/013direct_addressing.cc.html b/html/subx/013direct_addressing.cc.html index e4eeb855..173e04e2 100644 --- a/html/subx/013direct_addressing.cc.html +++ b/html/subx/013direct_addressing.cc.html @@ -66,7 +66,7 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="Comment">//: operating directly on a register</span> <span id="L2" class="LineNr"> 2 </span> <span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"01"</span><span class="Delimiter">,</span> <span class="Constant">"add r32 to rm32"</span><span class="Delimiter">);</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"01"</span><span class="Delimiter">,</span> <span class="Constant">"add r32 to rm32"</span><span class="Delimiter">);</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario add_r32_to_r32)</span> <span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[EAX].i = 0x10;</span> @@ -81,9 +81,9 @@ if ('onhashchange' in window) { <span id="L16" class="LineNr"> 16 </span> <span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> <span class="Constant">0x01</span>: <span class="Delimiter">{</span> <span class="Comment">// add r32 to r/m32</span> -<span id="L19" class="LineNr"> 19 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L20" class="LineNr"> 20 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" to r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" to r/m32"</span> << end<span class="Delimiter">();</span> <span id="L22" class="LineNr"> 22 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L23" class="LineNr"> 23 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>i<span class="Delimiter">);</span> <span id="L24" class="LineNr"> 24 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -99,10 +99,10 @@ if ('onhashchange' in window) { <span id="L34" class="LineNr"> 34 </span> <span class="Normal">uint8_t</span> rm = modrm & <span class="Constant">0x7</span><span class="Delimiter">;</span> <span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod == <span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L36" class="LineNr"> 36 </span> <span class="Comment">// mod 3 is just register direct addressing</span> -<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"r/m32 is "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"r/m32 is "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L38" class="LineNr"> 38 </span> <span class="Identifier">return</span> &Reg[rm]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> <span id="L39" class="LineNr"> 39 </span> <span class="Delimiter">}</span> -<span id="L40" class="LineNr"> 40 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L129'>mem_addr_i32</a><span class="Delimiter">(</span><a href='013direct_addressing.cc.html#L43'>effective_address_number</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L217'>mem_addr_i32</a><span class="Delimiter">(</span><a href='013direct_addressing.cc.html#L43'>effective_address_number</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> <span id="L41" class="LineNr"> 41 </span><span class="Delimiter">}</span> <span id="L42" class="LineNr"> 42 </span> <span id="L43" class="LineNr"> 43 </span><span class="Normal">uint32_t</span> <a href='013direct_addressing.cc.html#L43'>effective_address_number</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> modrm<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -113,11 +113,11 @@ if ('onhashchange' in window) { <span id="L48" class="LineNr"> 48 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>mod<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L49" class="LineNr"> 49 </span> <span class="Normal">case</span> <span class="Constant">3</span>: <span id="L50" class="LineNr"> 50 </span> <span class="Comment">// mod 3 is just register direct addressing</span> -<span id="L51" class="LineNr"> 51 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"unexpected direct addressing mode</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L51" class="LineNr"> 51 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"unexpected direct addressing mode</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L52" class="LineNr"> 52 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L53" class="LineNr"> 53 </span> <span class="Comment">// End Mod Special-cases(addr)</span> <span id="L54" class="LineNr"> 54 </span> <span class="Normal">default</span>: -<span id="L55" class="LineNr"> 55 </span> cerr << <span class="Constant">"unrecognized mod bits: "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>mod<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L55" class="LineNr"> 55 </span> cerr << <span class="Constant">"unrecognized mod bits: "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>mod<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span id="L56" class="LineNr"> 56 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L57" class="LineNr"> 57 </span> <span class="Delimiter">}</span> <span id="L58" class="LineNr"> 58 </span> <span class="Comment">//: other mods are indirect, and they'll set addr appropriately</span> @@ -134,14 +134,14 @@ if ('onhashchange' in window) { <span id="L69" class="LineNr"> 69 </span> <span class="Normal">case</span> <span class="Constant">5</span>: <span class="Identifier">return</span> <span class="Constant">"EBP"</span><span class="Delimiter">;</span> <span id="L70" class="LineNr"> 70 </span> <span class="Normal">case</span> <span class="Constant">6</span>: <span class="Identifier">return</span> <span class="Constant">"ESI"</span><span class="Delimiter">;</span> <span id="L71" class="LineNr"> 71 </span> <span class="Normal">case</span> <span class="Constant">7</span>: <span class="Identifier">return</span> <span class="Constant">"EDI"</span><span class="Delimiter">;</span> -<span id="L72" class="LineNr"> 72 </span> <span class="Normal">default</span>: <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"invalid register "</span> << r << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Normal">default</span>: <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"invalid register "</span> << r << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> <span id="L73" class="LineNr"> 73 </span> <span class="Delimiter">}</span> <span id="L74" class="LineNr"> 74 </span><span class="Delimiter">}</span> <span id="L75" class="LineNr"> 75 </span> <span id="L76" class="LineNr"> 76 </span><span class="SalientComment">//:: subtract</span> <span id="L77" class="LineNr"> 77 </span> <span id="L78" class="LineNr"> 78 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L79" class="LineNr"> 79 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"29"</span><span class="Delimiter">,</span> <span class="Constant">"subtract r32 from rm32"</span><span class="Delimiter">);</span> +<span id="L79" class="LineNr"> 79 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"29"</span><span class="Delimiter">,</span> <span class="Constant">"subtract r32 from rm32"</span><span class="Delimiter">);</span> <span id="L80" class="LineNr"> 80 </span> <span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(scenario subtract_r32_from_r32)</span> <span id="L82" class="LineNr"> 82 </span><span class="Special">% Reg[EAX].i = 10;</span> @@ -156,9 +156,9 @@ if ('onhashchange' in window) { <span id="L91" class="LineNr"> 91 </span> <span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L93" class="LineNr"> 93 </span><span class="Normal">case</span> <span class="Constant">0x29</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract r32 from r/m32</span> -<span id="L94" class="LineNr"> 94 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L95" class="LineNr"> 95 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L96" class="LineNr"> 96 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" from r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L96" class="LineNr"> 96 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" from r/m32"</span> << end<span class="Delimiter">();</span> <span id="L97" class="LineNr"> 97 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L98" class="LineNr"> 98 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>i<span class="Delimiter">);</span> <span id="L99" class="LineNr"> 99 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -167,7 +167,7 @@ if ('onhashchange' in window) { <span id="L102" class="LineNr">102 </span><span class="SalientComment">//:: multiply</span> <span id="L103" class="LineNr">103 </span> <span id="L104" class="LineNr">104 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L105" class="LineNr">105 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">"test/negate/mul/div rm32 (with <a href='010---vm.cc.html#L13'>EAX</a> if necessary) depending on subop"</span><span class="Delimiter">);</span> +<span id="L105" class="LineNr">105 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">"test/negate/mul/div rm32 (with <a href='010---vm.cc.html#L13'>EAX</a> if necessary) depending on subop"</span><span class="Delimiter">);</span> <span id="L106" class="LineNr">106 </span> <span id="L107" class="LineNr">107 </span><span class="Delimiter">:(scenario multiply_eax_by_r32)</span> <span id="L108" class="LineNr">108 </span><span class="Special">% Reg[EAX].i = 4;</span> @@ -183,23 +183,23 @@ if ('onhashchange' in window) { <span id="L118" class="LineNr">118 </span> <span id="L119" class="LineNr">119 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L120" class="LineNr">120 </span><span class="Normal">case</span> <span class="Constant">0xf7</span>: <span class="Delimiter">{</span> <span class="Comment">// xor r32 with r/m32</span> -<span id="L121" class="LineNr">121 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L122" class="LineNr">122 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"operate on r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L121" class="LineNr">121 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> +<span id="L122" class="LineNr">122 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"operate on r/m32"</span> << end<span class="Delimiter">();</span> <span id="L123" class="LineNr">123 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L124" class="LineNr">124 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span class="Comment">// middle 3 'reg opcode' bits</span> <span id="L125" class="LineNr">125 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L126" class="LineNr">126 </span> <span class="Normal">case</span> <span class="Constant">4</span>: <span class="Delimiter">{</span> <span class="Comment">// mul unsigned EAX by r/m32</span> -<span id="L127" class="LineNr">127 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop: multiply <a href='010---vm.cc.html#L13'>EAX</a> by r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L127" class="LineNr">127 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop: multiply <a href='010---vm.cc.html#L13'>EAX</a> by r/m32"</span> << end<span class="Delimiter">();</span> <span id="L128" class="LineNr">128 </span> <span class="Normal">uint64_t</span> result = Reg[EAX]<span class="Delimiter">.</span>u * <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span>*arg1<span class="Delimiter">);</span> <span id="L129" class="LineNr">129 </span> Reg[EAX]<span class="Delimiter">.</span>u = result & <span class="Constant">0xffffffff</span><span class="Delimiter">;</span> <span id="L130" class="LineNr">130 </span> Reg[EDX]<span class="Delimiter">.</span>u = result >> <span class="Constant">32</span><span class="Delimiter">;</span> <span id="L131" class="LineNr">131 </span> <a href='010---vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>Reg[EDX]<span class="Delimiter">.</span>u != <span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L132" class="LineNr">132 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[EAX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L132" class="LineNr">132 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[EAX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> <span id="L133" class="LineNr">133 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L134" class="LineNr">134 </span> <span class="Delimiter">}</span> <span id="L135" class="LineNr">135 </span> <span class="Comment">// End Op f7 Subops</span> <span id="L136" class="LineNr">136 </span> <span class="Normal">default</span>: -<span id="L137" class="LineNr">137 </span> cerr << <span class="Constant">"unrecognized sub-opcode after f7: "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>subop<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L137" class="LineNr">137 </span> cerr << <span class="Constant">"unrecognized sub-opcode after f7: "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>subop<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span id="L138" class="LineNr">138 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L139" class="LineNr">139 </span> <span class="Delimiter">}</span> <span id="L140" class="LineNr">140 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -208,7 +208,7 @@ if ('onhashchange' in window) { <span id="L143" class="LineNr">143 </span><span class="Comment">//:</span> <span id="L144" class="LineNr">144 </span> <span id="L145" class="LineNr">145 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L146" class="LineNr">146 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"af"</span><span class="Delimiter">,</span> <span class="Constant">"multiply rm32 into r32"</span><span class="Delimiter">);</span> +<span id="L146" class="LineNr">146 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"af"</span><span class="Delimiter">,</span> <span class="Constant">"multiply rm32 into r32"</span><span class="Delimiter">);</span> <span id="L147" class="LineNr">147 </span> <span id="L148" class="LineNr">148 </span><span class="Delimiter">:(scenario multiply_r32_into_r32)</span> <span id="L149" class="LineNr">149 </span><span class="Special">% Reg[EAX].i = 4;</span> @@ -223,9 +223,9 @@ if ('onhashchange' in window) { <span id="L158" class="LineNr">158 </span> <span id="L159" class="LineNr">159 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> <span id="L160" class="LineNr">160 </span><span class="Normal">case</span> <span class="Constant">0xaf</span>: <span class="Delimiter">{</span> <span class="Comment">// multiply r32 into r/m32</span> -<span id="L161" class="LineNr">161 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L161" class="LineNr">161 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L162" class="LineNr">162 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L163" class="LineNr">163 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"multiply r/m32 into "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L163" class="LineNr">163 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"multiply r/m32 into "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L164" class="LineNr">164 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L165" class="LineNr">165 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>*<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> *arg1<span class="Delimiter">);</span> <span id="L166" class="LineNr">166 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -234,7 +234,7 @@ if ('onhashchange' in window) { <span id="L169" class="LineNr">169 </span><span class="SalientComment">//:: and</span> <span id="L170" class="LineNr">170 </span> <span id="L171" class="LineNr">171 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L172" class="LineNr">172 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"21"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise AND of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L172" class="LineNr">172 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"21"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise AND of r32 with rm32"</span><span class="Delimiter">);</span> <span id="L173" class="LineNr">173 </span> <span id="L174" class="LineNr">174 </span><span class="Delimiter">:(scenario and_r32_with_r32)</span> <span id="L175" class="LineNr">175 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> @@ -249,9 +249,9 @@ if ('onhashchange' in window) { <span id="L184" class="LineNr">184 </span> <span id="L185" class="LineNr">185 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L186" class="LineNr">186 </span><span class="Normal">case</span> <span class="Constant">0x21</span>: <span class="Delimiter">{</span> <span class="Comment">// and r32 with r/m32</span> -<span id="L187" class="LineNr">187 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L187" class="LineNr">187 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L188" class="LineNr">188 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L189" class="LineNr">189 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L189" class="LineNr">189 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << end<span class="Delimiter">();</span> <span id="L190" class="LineNr">190 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L191" class="LineNr">191 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> <span id="L192" class="LineNr">192 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -260,7 +260,7 @@ if ('onhashchange' in window) { <span id="L195" class="LineNr">195 </span><span class="SalientComment">//:: or</span> <span id="L196" class="LineNr">196 </span> <span id="L197" class="LineNr">197 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"09"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise OR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"09"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise OR of r32 with rm32"</span><span class="Delimiter">);</span> <span id="L199" class="LineNr">199 </span> <span id="L200" class="LineNr">200 </span><span class="Delimiter">:(scenario or_r32_with_r32)</span> <span id="L201" class="LineNr">201 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> @@ -275,9 +275,9 @@ if ('onhashchange' in window) { <span id="L210" class="LineNr">210 </span> <span id="L211" class="LineNr">211 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L212" class="LineNr">212 </span><span class="Normal">case</span> <span class="Constant">0x09</span>: <span class="Delimiter">{</span> <span class="Comment">// or r32 with r/m32</span> -<span id="L213" class="LineNr">213 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L213" class="LineNr">213 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L214" class="LineNr">214 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L215" class="LineNr">215 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L215" class="LineNr">215 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << end<span class="Delimiter">();</span> <span id="L216" class="LineNr">216 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L217" class="LineNr">217 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> <span id="L218" class="LineNr">218 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -286,7 +286,7 @@ if ('onhashchange' in window) { <span id="L221" class="LineNr">221 </span><span class="SalientComment">//:: xor</span> <span id="L222" class="LineNr">222 </span> <span id="L223" class="LineNr">223 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L224" class="LineNr">224 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"31"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise XOR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L224" class="LineNr">224 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"31"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise XOR of r32 with rm32"</span><span class="Delimiter">);</span> <span id="L225" class="LineNr">225 </span> <span id="L226" class="LineNr">226 </span><span class="Delimiter">:(scenario xor_r32_with_r32)</span> <span id="L227" class="LineNr">227 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> @@ -301,9 +301,9 @@ if ('onhashchange' in window) { <span id="L236" class="LineNr">236 </span> <span id="L237" class="LineNr">237 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L238" class="LineNr">238 </span><span class="Normal">case</span> <span class="Constant">0x31</span>: <span class="Delimiter">{</span> <span class="Comment">// xor r32 with r/m32</span> -<span id="L239" class="LineNr">239 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L239" class="LineNr">239 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L240" class="LineNr">240 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L241" class="LineNr">241 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L241" class="LineNr">241 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << end<span class="Delimiter">();</span> <span id="L242" class="LineNr">242 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L243" class="LineNr">243 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> <span id="L244" class="LineNr">244 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -312,7 +312,7 @@ if ('onhashchange' in window) { <span id="L247" class="LineNr">247 </span><span class="SalientComment">//:: not</span> <span id="L248" class="LineNr">248 </span> <span id="L249" class="LineNr">249 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L250" class="LineNr">250 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">"bitwise complement of rm32"</span><span class="Delimiter">);</span> +<span id="L250" class="LineNr">250 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">"bitwise complement of rm32"</span><span class="Delimiter">);</span> <span id="L251" class="LineNr">251 </span> <span id="L252" class="LineNr">252 </span><span class="Delimiter">:(scenario not_r32)</span> <span id="L253" class="LineNr">253 </span><span class="Special">% Reg[EBX].i = 0x0f0f00ff;</span> @@ -327,9 +327,9 @@ if ('onhashchange' in window) { <span id="L262" class="LineNr">262 </span> <span id="L263" class="LineNr">263 </span><span class="Delimiter">:(before "End Op f7 Subops")</span> <span id="L264" class="LineNr">264 </span><span class="Normal">case</span> <span class="Constant">2</span>: <span class="Delimiter">{</span> <span class="Comment">// not r/m32</span> -<span id="L265" class="LineNr">265 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop: not"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L265" class="LineNr">265 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop: not"</span> << end<span class="Delimiter">();</span> <span id="L266" class="LineNr">266 </span> *arg1 = ~<span class="Delimiter">(</span>*arg1<span class="Delimiter">);</span> -<span id="L267" class="LineNr">267 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << *arg1 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L267" class="LineNr">267 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << *arg1 << end<span class="Delimiter">();</span> <span id="L268" class="LineNr">268 </span> SF = <span class="Delimiter">(</span>*arg1 >> <span class="Constant">31</span><span class="Delimiter">);</span> <span id="L269" class="LineNr">269 </span> ZF = <span class="Delimiter">(</span>*arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L270" class="LineNr">270 </span> <a href='010---vm.cc.html#L59'>OF</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> @@ -339,7 +339,7 @@ if ('onhashchange' in window) { <span id="L274" class="LineNr">274 </span><span class="SalientComment">//:: compare (cmp)</span> <span id="L275" class="LineNr">275 </span> <span id="L276" class="LineNr">276 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L277" class="LineNr">277 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"39"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if rm32 < r32"</span><span class="Delimiter">);</span> +<span id="L277" class="LineNr">277 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"39"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if rm32 < r32"</span><span class="Delimiter">);</span> <span id="L278" class="LineNr">278 </span> <span id="L279" class="LineNr">279 </span><span class="Delimiter">:(scenario compare_r32_with_r32_greater)</span> <span id="L280" class="LineNr">280 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> @@ -354,9 +354,9 @@ if ('onhashchange' in window) { <span id="L289" class="LineNr">289 </span> <span id="L290" class="LineNr">290 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L291" class="LineNr">291 </span><span class="Normal">case</span> <span class="Constant">0x39</span>: <span class="Delimiter">{</span> <span class="Comment">// set SF if r/m32 < r32</span> -<span id="L292" class="LineNr">292 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L292" class="LineNr">292 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L293" class="LineNr">293 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L294" class="LineNr">294 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L294" class="LineNr">294 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << end<span class="Delimiter">();</span> <span id="L295" class="LineNr">295 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L296" class="LineNr">296 </span> <span class="Normal">int32_t</span> arg2 = Reg[reg2]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> <span id="L297" class="LineNr">297 </span> <span class="Normal">int32_t</span> tmp1 = *arg1 - arg2<span class="Delimiter">;</span> @@ -364,7 +364,7 @@ if ('onhashchange' in window) { <span id="L299" class="LineNr">299 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L300" class="LineNr">300 </span> <span class="Normal">int64_t</span> tmp2 = *arg1 - arg2<span class="Delimiter">;</span> <span id="L301" class="LineNr">301 </span> <a href='010---vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> -<span id="L302" class="LineNr">302 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L302" class="LineNr">302 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << end<span class="Delimiter">();</span> <span id="L303" class="LineNr">303 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L304" class="LineNr">304 </span><span class="Delimiter">}</span> <span id="L305" class="LineNr">305 </span> @@ -393,7 +393,7 @@ if ('onhashchange' in window) { <span id="L328" class="LineNr">328 </span><span class="SalientComment">//:: copy (mov)</span> <span id="L329" class="LineNr">329 </span> <span id="L330" class="LineNr">330 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L331" class="LineNr">331 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"89"</span><span class="Delimiter">,</span> <span class="Constant">"copy r32 to rm32"</span><span class="Delimiter">);</span> +<span id="L331" class="LineNr">331 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"89"</span><span class="Delimiter">,</span> <span class="Constant">"copy r32 to rm32"</span><span class="Delimiter">);</span> <span id="L332" class="LineNr">332 </span> <span id="L333" class="LineNr">333 </span><span class="Delimiter">:(scenario copy_r32_to_r32)</span> <span id="L334" class="LineNr">334 </span><span class="Special">% Reg[EBX].i = 0xaf;</span> @@ -407,19 +407,19 @@ if ('onhashchange' in window) { <span id="L342" class="LineNr">342 </span> <span id="L343" class="LineNr">343 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L344" class="LineNr">344 </span><span class="Normal">case</span> <span class="Constant">0x89</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r32 to r/m32</span> -<span id="L345" class="LineNr">345 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L345" class="LineNr">345 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L346" class="LineNr">346 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L347" class="LineNr">347 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" to r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L347" class="LineNr">347 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" to r/m32"</span> << end<span class="Delimiter">();</span> <span id="L348" class="LineNr">348 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L349" class="LineNr">349 </span> *arg1 = Reg[reg2]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> -<span id="L350" class="LineNr">350 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << *arg1 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L350" class="LineNr">350 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << *arg1 << end<span class="Delimiter">();</span> <span id="L351" class="LineNr">351 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L352" class="LineNr">352 </span><span class="Delimiter">}</span> <span id="L353" class="LineNr">353 </span> <span id="L354" class="LineNr">354 </span><span class="SalientComment">//:: xchg</span> <span id="L355" class="LineNr">355 </span> <span id="L356" class="LineNr">356 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L357" class="LineNr">357 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"87"</span><span class="Delimiter">,</span> <span class="Constant">"swap the <a href='003trace.cc.html#L74'>contents</a> of r32 and rm32"</span><span class="Delimiter">);</span> +<span id="L357" class="LineNr">357 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"87"</span><span class="Delimiter">,</span> <span class="Constant">"swap the <a href='003trace.cc.html#L74'>contents</a> of r32 and rm32"</span><span class="Delimiter">);</span> <span id="L358" class="LineNr">358 </span> <span id="L359" class="LineNr">359 </span><span class="Delimiter">:(scenario xchg_r32_with_r32)</span> <span id="L360" class="LineNr">360 </span><span class="Special">% Reg[EBX].i = 0xaf;</span> @@ -435,29 +435,29 @@ if ('onhashchange' in window) { <span id="L370" class="LineNr">370 </span> <span id="L371" class="LineNr">371 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L372" class="LineNr">372 </span><span class="Normal">case</span> <span class="Constant">0x87</span>: <span class="Delimiter">{</span> <span class="Comment">// exchange r32 with r/m32</span> -<span id="L373" class="LineNr">373 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L373" class="LineNr">373 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L374" class="LineNr">374 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L375" class="LineNr">375 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"exchange "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L375" class="LineNr">375 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"exchange "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << end<span class="Delimiter">();</span> <span id="L376" class="LineNr">376 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L377" class="LineNr">377 </span> <span class="Normal">int32_t</span> tmp = *arg1<span class="Delimiter">;</span> <span id="L378" class="LineNr">378 </span> *arg1 = Reg[reg2]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> <span id="L379" class="LineNr">379 </span> Reg[reg2]<span class="Delimiter">.</span>i = tmp<span class="Delimiter">;</span> -<span id="L380" class="LineNr">380 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << *arg1 << <span class="Constant">" in r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L381" class="LineNr">381 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[reg2]<span class="Delimiter">.</span>i << <span class="Constant">" in "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L380" class="LineNr">380 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << *arg1 << <span class="Constant">" in r/m32"</span> << end<span class="Delimiter">();</span> +<span id="L381" class="LineNr">381 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[reg2]<span class="Delimiter">.</span>i << <span class="Constant">" in "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L382" class="LineNr">382 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L383" class="LineNr">383 </span><span class="Delimiter">}</span> <span id="L384" class="LineNr">384 </span> <span id="L385" class="LineNr">385 </span><span class="SalientComment">//:: increment</span> <span id="L386" class="LineNr">386 </span> <span id="L387" class="LineNr">387 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L388" class="LineNr">388 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"40"</span><span class="Delimiter">,</span> <span class="Constant">"increment R0 (EAX)"</span><span class="Delimiter">);</span> -<span id="L389" class="LineNr">389 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"41"</span><span class="Delimiter">,</span> <span class="Constant">"increment R1 (ECX)"</span><span class="Delimiter">);</span> -<span id="L390" class="LineNr">390 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"42"</span><span class="Delimiter">,</span> <span class="Constant">"increment R2 (EDX)"</span><span class="Delimiter">);</span> -<span id="L391" class="LineNr">391 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"43"</span><span class="Delimiter">,</span> <span class="Constant">"increment R3 (EBX)"</span><span class="Delimiter">);</span> -<span id="L392" class="LineNr">392 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"44"</span><span class="Delimiter">,</span> <span class="Constant">"increment R4 (ESP)"</span><span class="Delimiter">);</span> -<span id="L393" class="LineNr">393 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"45"</span><span class="Delimiter">,</span> <span class="Constant">"increment R5 (EBP)"</span><span class="Delimiter">);</span> -<span id="L394" class="LineNr">394 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"46"</span><span class="Delimiter">,</span> <span class="Constant">"increment R6 (ESI)"</span><span class="Delimiter">);</span> -<span id="L395" class="LineNr">395 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"47"</span><span class="Delimiter">,</span> <span class="Constant">"increment R7 (EDI)"</span><span class="Delimiter">);</span> +<span id="L388" class="LineNr">388 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"40"</span><span class="Delimiter">,</span> <span class="Constant">"increment R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L389" class="LineNr">389 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"41"</span><span class="Delimiter">,</span> <span class="Constant">"increment R1 (ECX)"</span><span class="Delimiter">);</span> +<span id="L390" class="LineNr">390 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"42"</span><span class="Delimiter">,</span> <span class="Constant">"increment R2 (EDX)"</span><span class="Delimiter">);</span> +<span id="L391" class="LineNr">391 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"43"</span><span class="Delimiter">,</span> <span class="Constant">"increment R3 (EBX)"</span><span class="Delimiter">);</span> +<span id="L392" class="LineNr">392 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"44"</span><span class="Delimiter">,</span> <span class="Constant">"increment R4 (ESP)"</span><span class="Delimiter">);</span> +<span id="L393" class="LineNr">393 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"45"</span><span class="Delimiter">,</span> <span class="Constant">"increment R5 (EBP)"</span><span class="Delimiter">);</span> +<span id="L394" class="LineNr">394 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"46"</span><span class="Delimiter">,</span> <span class="Constant">"increment R6 (ESI)"</span><span class="Delimiter">);</span> +<span id="L395" class="LineNr">395 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"47"</span><span class="Delimiter">,</span> <span class="Constant">"increment R7 (EDI)"</span><span class="Delimiter">);</span> <span id="L396" class="LineNr">396 </span> <span id="L397" class="LineNr">397 </span><span class="Delimiter">:(scenario increment_r32)</span> <span id="L398" class="LineNr">398 </span><span class="Special">% Reg[ECX].u = 0x1f;</span> @@ -477,14 +477,14 @@ if ('onhashchange' in window) { <span id="L412" class="LineNr">412 </span><span class="Normal">case</span> <span class="Constant">0x46</span>: <span id="L413" class="LineNr">413 </span><span class="Normal">case</span> <span class="Constant">0x47</span>: <span class="Delimiter">{</span> <span class="Comment">// increment r32</span> <span id="L414" class="LineNr">414 </span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L415" class="LineNr">415 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"increment "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L415" class="LineNr">415 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"increment "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L416" class="LineNr">416 </span> ++Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L417" class="LineNr">417 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[reg]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L417" class="LineNr">417 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[reg]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> <span id="L418" class="LineNr">418 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L419" class="LineNr">419 </span><span class="Delimiter">}</span> <span id="L420" class="LineNr">420 </span> <span id="L421" class="LineNr">421 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L422" class="LineNr">422 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"ff"</span><span class="Delimiter">,</span> <span class="Constant">"inc/dec/jump/push/call rm32 based on subop"</span><span class="Delimiter">);</span> +<span id="L422" class="LineNr">422 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"ff"</span><span class="Delimiter">,</span> <span class="Constant">"inc/dec/jump/push/call rm32 based on subop"</span><span class="Delimiter">);</span> <span id="L423" class="LineNr">423 </span> <span id="L424" class="LineNr">424 </span><span class="Delimiter">:(scenario increment_rm32)</span> <span id="L425" class="LineNr">425 </span><span class="Special">% Reg[EAX].u = 0x20;</span> @@ -498,14 +498,14 @@ if ('onhashchange' in window) { <span id="L433" class="LineNr">433 </span> <span id="L434" class="LineNr">434 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L435" class="LineNr">435 </span><span class="Normal">case</span> <span class="Constant">0xff</span>: <span class="Delimiter">{</span> -<span id="L436" class="LineNr">436 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L436" class="LineNr">436 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L437" class="LineNr">437 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span class="Comment">// middle 3 'reg opcode' bits</span> <span id="L438" class="LineNr">438 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L439" class="LineNr">439 </span> <span class="Normal">case</span> <span class="Constant">0</span>: <span class="Delimiter">{</span> <span class="Comment">// increment r/m32</span> -<span id="L440" class="LineNr">440 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"increment r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L440" class="LineNr">440 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"increment r/m32"</span> << end<span class="Delimiter">();</span> <span id="L441" class="LineNr">441 </span> <span class="Normal">int32_t</span>* <a href='001help.cc.html#L15'>arg</a> = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L442" class="LineNr">442 </span> ++*arg<span class="Delimiter">;</span> -<span id="L443" class="LineNr">443 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << *arg << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L443" class="LineNr">443 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << *arg << end<span class="Delimiter">();</span> <span id="L444" class="LineNr">444 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L445" class="LineNr">445 </span> <span class="Delimiter">}</span> <span id="L446" class="LineNr">446 </span> <span class="Comment">// End Op ff Subops</span> @@ -516,14 +516,14 @@ if ('onhashchange' in window) { <span id="L451" class="LineNr">451 </span><span class="SalientComment">//:: decrement</span> <span id="L452" class="LineNr">452 </span> <span id="L453" class="LineNr">453 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L454" class="LineNr">454 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"48"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R0 (EAX)"</span><span class="Delimiter">);</span> -<span id="L455" class="LineNr">455 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"49"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R1 (ECX)"</span><span class="Delimiter">);</span> -<span id="L456" class="LineNr">456 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"4a"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R2 (EDX)"</span><span class="Delimiter">);</span> -<span id="L457" class="LineNr">457 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"4b"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R3 (EBX)"</span><span class="Delimiter">);</span> -<span id="L458" class="LineNr">458 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"4c"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R4 (ESP)"</span><span class="Delimiter">);</span> -<span id="L459" class="LineNr">459 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"4d"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R5 (EBP)"</span><span class="Delimiter">);</span> -<span id="L460" class="LineNr">460 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"4e"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R6 (ESI)"</span><span class="Delimiter">);</span> -<span id="L461" class="LineNr">461 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"4f"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R7 (EDI)"</span><span class="Delimiter">);</span> +<span id="L454" class="LineNr">454 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"48"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L455" class="LineNr">455 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"49"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R1 (ECX)"</span><span class="Delimiter">);</span> +<span id="L456" class="LineNr">456 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"4a"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R2 (EDX)"</span><span class="Delimiter">);</span> +<span id="L457" class="LineNr">457 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"4b"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R3 (EBX)"</span><span class="Delimiter">);</span> +<span id="L458" class="LineNr">458 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"4c"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R4 (ESP)"</span><span class="Delimiter">);</span> +<span id="L459" class="LineNr">459 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"4d"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R5 (EBP)"</span><span class="Delimiter">);</span> +<span id="L460" class="LineNr">460 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"4e"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R6 (ESI)"</span><span class="Delimiter">);</span> +<span id="L461" class="LineNr">461 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"4f"</span><span class="Delimiter">,</span> <span class="Constant">"decrement R7 (EDI)"</span><span class="Delimiter">);</span> <span id="L462" class="LineNr">462 </span> <span id="L463" class="LineNr">463 </span><span class="Delimiter">:(scenario decrement_r32)</span> <span id="L464" class="LineNr">464 </span><span class="Special">% Reg[ECX].u = 0x1f;</span> @@ -543,9 +543,9 @@ if ('onhashchange' in window) { <span id="L478" class="LineNr">478 </span><span class="Normal">case</span> <span class="Constant">0x4e</span>: <span id="L479" class="LineNr">479 </span><span class="Normal">case</span> <span class="Constant">0x4f</span>: <span class="Delimiter">{</span> <span class="Comment">// decrement r32</span> <span id="L480" class="LineNr">480 </span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L481" class="LineNr">481 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrement "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L481" class="LineNr">481 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrement "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L482" class="LineNr">482 </span> --Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L483" class="LineNr">483 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[reg]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L483" class="LineNr">483 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[reg]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> <span id="L484" class="LineNr">484 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L485" class="LineNr">485 </span><span class="Delimiter">}</span> <span id="L486" class="LineNr">486 </span> @@ -561,24 +561,24 @@ if ('onhashchange' in window) { <span id="L496" class="LineNr">496 </span> <span id="L497" class="LineNr">497 </span><span class="Delimiter">:(before "End Op ff Subops")</span> <span id="L498" class="LineNr">498 </span><span class="Normal">case</span> <span class="Constant">1</span>: <span class="Delimiter">{</span> <span class="Comment">// decrement r/m32</span> -<span id="L499" class="LineNr">499 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrement r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L499" class="LineNr">499 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrement r/m32"</span> << end<span class="Delimiter">();</span> <span id="L500" class="LineNr">500 </span> <span class="Normal">int32_t</span>* <a href='001help.cc.html#L15'>arg</a> = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L501" class="LineNr">501 </span> --*arg<span class="Delimiter">;</span> -<span id="L502" class="LineNr">502 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << *arg << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L502" class="LineNr">502 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing value 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << *arg << end<span class="Delimiter">();</span> <span id="L503" class="LineNr">503 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L504" class="LineNr">504 </span><span class="Delimiter">}</span> <span id="L505" class="LineNr">505 </span> <span id="L506" class="LineNr">506 </span><span class="SalientComment">//:: push</span> <span id="L507" class="LineNr">507 </span> <span id="L508" class="LineNr">508 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L509" class="LineNr">509 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"50"</span><span class="Delimiter">,</span> <span class="Constant">"push R0 (EAX) to stack"</span><span class="Delimiter">);</span> -<span id="L510" class="LineNr">510 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"51"</span><span class="Delimiter">,</span> <span class="Constant">"push R1 (ECX) to stack"</span><span class="Delimiter">);</span> -<span id="L511" class="LineNr">511 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"52"</span><span class="Delimiter">,</span> <span class="Constant">"push R2 (EDX) to stack"</span><span class="Delimiter">);</span> -<span id="L512" class="LineNr">512 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"53"</span><span class="Delimiter">,</span> <span class="Constant">"push R3 (EBX) to stack"</span><span class="Delimiter">);</span> -<span id="L513" class="LineNr">513 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"54"</span><span class="Delimiter">,</span> <span class="Constant">"push R4 (ESP) to stack"</span><span class="Delimiter">);</span> -<span id="L514" class="LineNr">514 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"55"</span><span class="Delimiter">,</span> <span class="Constant">"push R5 (EBP) to stack"</span><span class="Delimiter">);</span> -<span id="L515" class="LineNr">515 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"56"</span><span class="Delimiter">,</span> <span class="Constant">"push R6 (ESI) to stack"</span><span class="Delimiter">);</span> -<span id="L516" class="LineNr">516 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"57"</span><span class="Delimiter">,</span> <span class="Constant">"push R7 (EDI) to stack"</span><span class="Delimiter">);</span> +<span id="L509" class="LineNr">509 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"50"</span><span class="Delimiter">,</span> <span class="Constant">"push R0 (EAX) to stack"</span><span class="Delimiter">);</span> +<span id="L510" class="LineNr">510 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"51"</span><span class="Delimiter">,</span> <span class="Constant">"push R1 (ECX) to stack"</span><span class="Delimiter">);</span> +<span id="L511" class="LineNr">511 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"52"</span><span class="Delimiter">,</span> <span class="Constant">"push R2 (EDX) to stack"</span><span class="Delimiter">);</span> +<span id="L512" class="LineNr">512 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"53"</span><span class="Delimiter">,</span> <span class="Constant">"push R3 (EBX) to stack"</span><span class="Delimiter">);</span> +<span id="L513" class="LineNr">513 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"54"</span><span class="Delimiter">,</span> <span class="Constant">"push R4 (ESP) to stack"</span><span class="Delimiter">);</span> +<span id="L514" class="LineNr">514 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"55"</span><span class="Delimiter">,</span> <span class="Constant">"push R5 (EBP) to stack"</span><span class="Delimiter">);</span> +<span id="L515" class="LineNr">515 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"56"</span><span class="Delimiter">,</span> <span class="Constant">"push R6 (ESI) to stack"</span><span class="Delimiter">);</span> +<span id="L516" class="LineNr">516 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"57"</span><span class="Delimiter">,</span> <span class="Constant">"push R7 (EDI) to stack"</span><span class="Delimiter">);</span> <span id="L517" class="LineNr">517 </span> <span id="L518" class="LineNr">518 </span><span class="Delimiter">:(scenario push_r32)</span> <span id="L519" class="LineNr">519 </span><span class="Special">% Reg[ESP].u = 0x64;</span> @@ -586,7 +586,7 @@ if ('onhashchange' in window) { <span id="L521" class="LineNr">521 </span>== <span class="Constant">0x1</span> <span id="L522" class="LineNr">522 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L523" class="LineNr">523 </span> <span class="Constant">53</span> <span class="Comment"># push EBX to stack</span> -<span id="L524" class="LineNr">524 </span><span class="traceContains">+run: <a href='012elf.cc.html#L85'>push</a> <a href='010---vm.cc.html#L16'>EBX</a></span> +<span id="L524" class="LineNr">524 </span><span class="traceContains">+run: <a href='012elf.cc.html#L89'>push</a> <a href='010---vm.cc.html#L16'>EBX</a></span> <span id="L525" class="LineNr">525 </span><span class="traceContains">+run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060</span> <span id="L526" class="LineNr">526 </span><span class="traceContains">+run: pushing value 0x0000000a</span> <span id="L527" class="LineNr">527 </span> @@ -600,60 +600,61 @@ if ('onhashchange' in window) { <span id="L535" class="LineNr">535 </span><span class="Normal">case</span> <span class="Constant">0x56</span>: <span id="L536" class="LineNr">536 </span><span class="Normal">case</span> <span class="Constant">0x57</span>: <span class="Delimiter">{</span> <span class="Comment">// push r32 to stack</span> <span id="L537" class="LineNr">537 </span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L538" class="LineNr">538 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L538" class="LineNr">538 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L539" class="LineNr">539 </span><span class="CommentedCode">//? cerr << "push: " << NUM(reg) << ": " << Reg[reg].u << " => " << Reg[ESP].u << '\n';</span> -<span id="L540" class="LineNr">540 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span>Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L540" class="LineNr">540 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span>Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> <span id="L541" class="LineNr">541 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L542" class="LineNr">542 </span><span class="Delimiter">}</span> <span id="L543" class="LineNr">543 </span> <span id="L544" class="LineNr">544 </span><span class="SalientComment">//:: pop</span> <span id="L545" class="LineNr">545 </span> <span id="L546" class="LineNr">546 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L547" class="LineNr">547 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"58"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R0 (EAX)"</span><span class="Delimiter">);</span> -<span id="L548" class="LineNr">548 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"59"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R1 (ECX)"</span><span class="Delimiter">);</span> -<span id="L549" class="LineNr">549 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"5a"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R2 (EDX)"</span><span class="Delimiter">);</span> -<span id="L550" class="LineNr">550 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"5b"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R3 (EBX)"</span><span class="Delimiter">);</span> -<span id="L551" class="LineNr">551 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"5c"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R4 (ESP)"</span><span class="Delimiter">);</span> -<span id="L552" class="LineNr">552 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"5d"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R5 (EBP)"</span><span class="Delimiter">);</span> -<span id="L553" class="LineNr">553 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"5e"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R6 (ESI)"</span><span class="Delimiter">);</span> -<span id="L554" class="LineNr">554 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"5f"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R7 (EDI)"</span><span class="Delimiter">);</span> +<span id="L547" class="LineNr">547 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"58"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L548" class="LineNr">548 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"59"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R1 (ECX)"</span><span class="Delimiter">);</span> +<span id="L549" class="LineNr">549 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"5a"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R2 (EDX)"</span><span class="Delimiter">);</span> +<span id="L550" class="LineNr">550 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"5b"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R3 (EBX)"</span><span class="Delimiter">);</span> +<span id="L551" class="LineNr">551 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"5c"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R4 (ESP)"</span><span class="Delimiter">);</span> +<span id="L552" class="LineNr">552 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"5d"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R5 (EBP)"</span><span class="Delimiter">);</span> +<span id="L553" class="LineNr">553 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"5e"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R6 (ESI)"</span><span class="Delimiter">);</span> +<span id="L554" class="LineNr">554 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"5f"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R7 (EDI)"</span><span class="Delimiter">);</span> <span id="L555" class="LineNr">555 </span> <span id="L556" class="LineNr">556 </span><span class="Delimiter">:(scenario pop_r32)</span> -<span id="L557" class="LineNr">557 </span><span class="Special">% Reg[ESP].u = 0x60;</span> -<span id="L558" class="LineNr">558 </span><span class="Special">% write_mem_i32(0x60, 0x0000000a);</span> -<span id="L559" class="LineNr">559 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> -<span id="L560" class="LineNr">560 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L561" class="LineNr">561 </span> 5b <span class="Comment"># pop stack to EBX</span> -<span id="L562" class="LineNr">562 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> -<span id="L563" class="LineNr">563 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x0a</span> -<span id="L564" class="LineNr">564 </span><span class="traceContains">+run: <a href='013direct_addressing.cc.html#L585'>pop</a> into <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L565" class="LineNr">565 </span><span class="traceContains">+run: popping value 0x0000000a</span> -<span id="L566" class="LineNr">566 </span><span class="traceContains">+run: incrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000064</span> -<span id="L567" class="LineNr">567 </span> -<span id="L568" class="LineNr">568 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L569" class="LineNr">569 </span><span class="Normal">case</span> <span class="Constant">0x58</span>: -<span id="L570" class="LineNr">570 </span><span class="Normal">case</span> <span class="Constant">0x59</span>: -<span id="L571" class="LineNr">571 </span><span class="Normal">case</span> <span class="Constant">0x5a</span>: -<span id="L572" class="LineNr">572 </span><span class="Normal">case</span> <span class="Constant">0x5b</span>: -<span id="L573" class="LineNr">573 </span><span class="Normal">case</span> <span class="Constant">0x5c</span>: -<span id="L574" class="LineNr">574 </span><span class="Normal">case</span> <span class="Constant">0x5d</span>: -<span id="L575" class="LineNr">575 </span><span class="Normal">case</span> <span class="Constant">0x5e</span>: -<span id="L576" class="LineNr">576 </span><span class="Normal">case</span> <span class="Constant">0x5f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r32</span> -<span id="L577" class="LineNr">577 </span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L578" class="LineNr">578 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L579" class="LineNr">579 </span><span class="CommentedCode">//? cerr << "pop from " << Reg[ESP].u << '\n';</span> -<span id="L580" class="LineNr">580 </span> Reg[reg]<span class="Delimiter">.</span>u = <a href='013direct_addressing.cc.html#L585'>pop</a><span class="Delimiter">();</span> -<span id="L581" class="LineNr">581 </span><span class="CommentedCode">//? cerr << "=> " << NUM(reg) << ": " << Reg[reg].u << '\n';</span> -<span id="L582" class="LineNr">582 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L583" class="LineNr">583 </span><span class="Delimiter">}</span> -<span id="L584" class="LineNr">584 </span><span class="Delimiter">:(code)</span> -<span id="L585" class="LineNr">585 </span><span class="Normal">uint32_t</span> <a href='013direct_addressing.cc.html#L585'>pop</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L586" class="LineNr">586 </span> <span class="Normal">uint32_t</span> result = <a href='010---vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> -<span id="L587" class="LineNr">587 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"popping value 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << result << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L588" class="LineNr">588 </span> Reg[ESP]<span class="Delimiter">.</span>u += <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L589" class="LineNr">589 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"incrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L590" class="LineNr">590 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L591" class="LineNr">591 </span><span class="Delimiter">}</span> +<span id="L557" class="LineNr">557 </span><span class="Special">% Reg[ESP].u = 0x2000;</span> +<span id="L558" class="LineNr">558 </span><span class="Special">% Mem.push_back(vma(0x2000)); // manually allocate memory</span> +<span id="L559" class="LineNr">559 </span><span class="Special">% write_mem_i32(0x2000, 0x0000000a); // ..before this write</span> +<span id="L560" class="LineNr">560 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L561" class="LineNr">561 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L562" class="LineNr">562 </span> 5b <span class="Comment"># pop stack to EBX</span> +<span id="L563" class="LineNr">563 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> +<span id="L564" class="LineNr">564 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x0a</span> +<span id="L565" class="LineNr">565 </span><span class="traceContains">+run: <a href='013direct_addressing.cc.html#L586'>pop</a> into <a href='010---vm.cc.html#L16'>EBX</a></span> +<span id="L566" class="LineNr">566 </span><span class="traceContains">+run: popping value 0x0000000a</span> +<span id="L567" class="LineNr">567 </span><span class="traceContains">+run: incrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00002004</span> +<span id="L568" class="LineNr">568 </span> +<span id="L569" class="LineNr">569 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L570" class="LineNr">570 </span><span class="Normal">case</span> <span class="Constant">0x58</span>: +<span id="L571" class="LineNr">571 </span><span class="Normal">case</span> <span class="Constant">0x59</span>: +<span id="L572" class="LineNr">572 </span><span class="Normal">case</span> <span class="Constant">0x5a</span>: +<span id="L573" class="LineNr">573 </span><span class="Normal">case</span> <span class="Constant">0x5b</span>: +<span id="L574" class="LineNr">574 </span><span class="Normal">case</span> <span class="Constant">0x5c</span>: +<span id="L575" class="LineNr">575 </span><span class="Normal">case</span> <span class="Constant">0x5d</span>: +<span id="L576" class="LineNr">576 </span><span class="Normal">case</span> <span class="Constant">0x5e</span>: +<span id="L577" class="LineNr">577 </span><span class="Normal">case</span> <span class="Constant">0x5f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r32</span> +<span id="L578" class="LineNr">578 </span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L579" class="LineNr">579 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L580" class="LineNr">580 </span><span class="CommentedCode">//? cerr << "pop from " << Reg[ESP].u << '\n';</span> +<span id="L581" class="LineNr">581 </span> Reg[reg]<span class="Delimiter">.</span>u = <a href='013direct_addressing.cc.html#L586'>pop</a><span class="Delimiter">();</span> +<span id="L582" class="LineNr">582 </span><span class="CommentedCode">//? cerr << "=> " << NUM(reg) << ": " << Reg[reg].u << '\n';</span> +<span id="L583" class="LineNr">583 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L584" class="LineNr">584 </span><span class="Delimiter">}</span> +<span id="L585" class="LineNr">585 </span><span class="Delimiter">:(code)</span> +<span id="L586" class="LineNr">586 </span><span class="Normal">uint32_t</span> <a href='013direct_addressing.cc.html#L586'>pop</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L587" class="LineNr">587 </span> <span class="Normal">uint32_t</span> result = <a href='010---vm.cc.html#L178'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L588" class="LineNr">588 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"popping value 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << result << end<span class="Delimiter">();</span> +<span id="L589" class="LineNr">589 </span> Reg[ESP]<span class="Delimiter">.</span>u += <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L590" class="LineNr">590 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"incrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L591" class="LineNr">591 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L592" class="LineNr">592 </span><span class="Delimiter">}</span> </pre> </body> </html> diff --git a/html/subx/014indirect_addressing.cc.html b/html/subx/014indirect_addressing.cc.html index 157701b7..61ce4216 100644 --- a/html/subx/014indirect_addressing.cc.html +++ b/html/subx/014indirect_addressing.cc.html @@ -67,22 +67,22 @@ if ('onhashchange' in window) { <span id="L3" class="LineNr"> 3 </span> <span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32)</span> <span id="L5" class="LineNr"> 5 </span><span class="Special">% Reg[EBX].i = 0x10;</span> -<span id="L6" class="LineNr"> 6 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L6" class="LineNr"> 6 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L7" class="LineNr"> 7 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L9" class="LineNr"> 9 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">18</span> <span class="Comment"># add EBX to *EAX</span> <span id="L10" class="LineNr"> 10 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L11" class="LineNr"> 11 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L11" class="LineNr"> 11 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L12" class="LineNr"> 12 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L13" class="LineNr"> 13 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L16" class="LineNr"> 16 </span> <span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Mod Special-cases(addr)")</span> <span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> <span class="Constant">0</span>: <span class="Comment">// indirect addressing</span> <span id="L19" class="LineNr"> 19 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L20" class="LineNr"> 20 </span> <span class="Normal">default</span>: <span class="Comment">// address in register</span> -<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << Reg[rm]<span class="Delimiter">.</span>u << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << Reg[rm]<span class="Delimiter">.</span>u << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << end<span class="Delimiter">();</span> <span id="L22" class="LineNr"> 22 </span> addr = Reg[rm]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> <span id="L23" class="LineNr"> 23 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L24" class="LineNr"> 24 </span> <span class="Comment">// End Mod 0 Special-cases(addr)</span> @@ -92,26 +92,26 @@ if ('onhashchange' in window) { <span id="L28" class="LineNr"> 28 </span><span class="Comment">//:</span> <span id="L29" class="LineNr"> 29 </span> <span id="L30" class="LineNr"> 30 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L31" class="LineNr"> 31 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"03"</span><span class="Delimiter">,</span> <span class="Constant">"add rm32 to r32"</span><span class="Delimiter">);</span> +<span id="L31" class="LineNr"> 31 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"03"</span><span class="Delimiter">,</span> <span class="Constant">"add rm32 to r32"</span><span class="Delimiter">);</span> <span id="L32" class="LineNr"> 32 </span> <span id="L33" class="LineNr"> 33 </span><span class="Delimiter">:(scenario add_mem_at_r32_to_r32)</span> -<span id="L34" class="LineNr"> 34 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L34" class="LineNr"> 34 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L35" class="LineNr"> 35 </span><span class="Special">% Reg[EBX].i = 0x10;</span> <span id="L36" class="LineNr"> 36 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L37" class="LineNr"> 37 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L38" class="LineNr"> 38 </span> <span class="PreProc">0</span><span class="Constant">3</span> <span class="Constant">18</span> <span class="Comment"># add *EAX to EBX</span> <span id="L39" class="LineNr"> 39 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L40" class="LineNr"> 40 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L40" class="LineNr"> 40 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L41" class="LineNr"> 41 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L42" class="LineNr"> 42 </span><span class="traceContains">+run: add r/m32 to <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L43" class="LineNr"> 43 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L43" class="LineNr"> 43 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L44" class="LineNr"> 44 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L45" class="LineNr"> 45 </span> <span id="L46" class="LineNr"> 46 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L47" class="LineNr"> 47 </span><span class="Normal">case</span> <span class="Constant">0x03</span>: <span class="Delimiter">{</span> <span class="Comment">// add r/m32 to r32</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L49" class="LineNr"> 49 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add r/m32 to "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add r/m32 to "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L51" class="LineNr"> 51 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L52" class="LineNr"> 52 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> <span id="L53" class="LineNr"> 53 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -120,41 +120,41 @@ if ('onhashchange' in window) { <span id="L56" class="LineNr"> 56 </span><span class="SalientComment">//:: subtract</span> <span id="L57" class="LineNr"> 57 </span> <span id="L58" class="LineNr"> 58 </span><span class="Delimiter">:(scenario subtract_r32_from_mem_at_r32)</span> -<span id="L59" class="LineNr"> 59 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L59" class="LineNr"> 59 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L60" class="LineNr"> 60 </span><span class="Special">% Reg[EBX].i = 1;</span> <span id="L61" class="LineNr"> 61 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L62" class="LineNr"> 62 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L63" class="LineNr"> 63 </span> <span class="Constant">29</span> <span class="Constant">18</span> <span class="Comment"># subtract EBX from *EAX</span> <span id="L64" class="LineNr"> 64 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L65" class="LineNr"> 65 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L65" class="LineNr"> 65 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L66" class="LineNr"> 66 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 10</span> <span id="L67" class="LineNr"> 67 </span><span class="traceContains">+run: subtract <a href='010---vm.cc.html#L16'>EBX</a> from r/m32</span> -<span id="L68" class="LineNr"> 68 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L68" class="LineNr"> 68 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L69" class="LineNr"> 69 </span><span class="traceContains">+run: storing 0x00000009</span> <span id="L70" class="LineNr"> 70 </span> <span id="L71" class="LineNr"> 71 </span><span class="Comment">//:</span> <span id="L72" class="LineNr"> 72 </span> <span id="L73" class="LineNr"> 73 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L74" class="LineNr"> 74 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"2b"</span><span class="Delimiter">,</span> <span class="Constant">"subtract rm32 from r32"</span><span class="Delimiter">);</span> +<span id="L74" class="LineNr"> 74 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"2b"</span><span class="Delimiter">,</span> <span class="Constant">"subtract rm32 from r32"</span><span class="Delimiter">);</span> <span id="L75" class="LineNr"> 75 </span> <span id="L76" class="LineNr"> 76 </span><span class="Delimiter">:(scenario subtract_mem_at_r32_from_r32)</span> -<span id="L77" class="LineNr"> 77 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L77" class="LineNr"> 77 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L78" class="LineNr"> 78 </span><span class="Special">% Reg[EBX].i = 10;</span> <span id="L79" class="LineNr"> 79 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L80" class="LineNr"> 80 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L81" class="LineNr"> 81 </span> 2b <span class="Constant">18</span> <span class="Comment"># subtract *EAX from EBX</span> <span id="L82" class="LineNr"> 82 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L83" class="LineNr"> 83 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L83" class="LineNr"> 83 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L84" class="LineNr"> 84 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L85" class="LineNr"> 85 </span><span class="traceContains">+run: subtract r/m32 from <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L86" class="LineNr"> 86 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L86" class="LineNr"> 86 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L87" class="LineNr"> 87 </span><span class="traceContains">+run: storing 0x00000009</span> <span id="L88" class="LineNr"> 88 </span> <span id="L89" class="LineNr"> 89 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L90" class="LineNr"> 90 </span><span class="Normal">case</span> <span class="Constant">0x2b</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract r/m32 from r32</span> -<span id="L91" class="LineNr"> 91 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L92" class="LineNr"> 92 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract r/m32 from "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract r/m32 from "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L94" class="LineNr"> 94 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L95" class="LineNr"> 95 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> <span id="L96" class="LineNr"> 96 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -163,41 +163,41 @@ if ('onhashchange' in window) { <span id="L99" class="LineNr"> 99 </span><span class="SalientComment">//:: and</span> <span id="L100" class="LineNr">100 </span> <span id="L101" class="LineNr">101 </span><span class="Delimiter">:(scenario and_r32_with_mem_at_r32)</span> -<span id="L102" class="LineNr">102 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L102" class="LineNr">102 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L103" class="LineNr">103 </span><span class="Special">% Reg[EBX].i = 0xff;</span> <span id="L104" class="LineNr">104 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L105" class="LineNr">105 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L106" class="LineNr">106 </span> <span class="Constant">21</span> <span class="Constant">18</span> <span class="Comment"># and EBX with *EAX</span> <span id="L107" class="LineNr">107 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L108" class="LineNr">108 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L108" class="LineNr">108 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L109" class="LineNr">109 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L110" class="LineNr">110 </span><span class="traceContains">+run: and <a href='010---vm.cc.html#L16'>EBX</a> with r/m32</span> -<span id="L111" class="LineNr">111 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L111" class="LineNr">111 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L112" class="LineNr">112 </span><span class="traceContains">+run: storing 0x0000000d</span> <span id="L113" class="LineNr">113 </span> <span id="L114" class="LineNr">114 </span><span class="Comment">//:</span> <span id="L115" class="LineNr">115 </span> <span id="L116" class="LineNr">116 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L117" class="LineNr">117 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"23"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise AND of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L117" class="LineNr">117 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"23"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise AND of r32 with rm32"</span><span class="Delimiter">);</span> <span id="L118" class="LineNr">118 </span> <span id="L119" class="LineNr">119 </span><span class="Delimiter">:(scenario and_mem_at_r32_with_r32)</span> -<span id="L120" class="LineNr">120 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L120" class="LineNr">120 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L121" class="LineNr">121 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> <span id="L122" class="LineNr">122 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L123" class="LineNr">123 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L124" class="LineNr">124 </span> <span class="Constant">23</span> <span class="Constant">18</span> <span class="Comment"># and *EAX with EBX</span> <span id="L125" class="LineNr">125 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L126" class="LineNr">126 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L126" class="LineNr">126 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L127" class="LineNr">127 </span>ff <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xff</span> <span id="L128" class="LineNr">128 </span><span class="traceContains">+run: and r/m32 with <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L129" class="LineNr">129 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L129" class="LineNr">129 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L130" class="LineNr">130 </span><span class="traceContains">+run: storing 0x0000000d</span> <span id="L131" class="LineNr">131 </span> <span id="L132" class="LineNr">132 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L133" class="LineNr">133 </span><span class="Normal">case</span> <span class="Constant">0x23</span>: <span class="Delimiter">{</span> <span class="Comment">// and r/m32 with r32</span> -<span id="L134" class="LineNr">134 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L135" class="LineNr">135 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L136" class="LineNr">136 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L136" class="LineNr">136 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L137" class="LineNr">137 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L138" class="LineNr">138 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> <span id="L139" class="LineNr">139 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -206,41 +206,41 @@ if ('onhashchange' in window) { <span id="L142" class="LineNr">142 </span><span class="SalientComment">//:: or</span> <span id="L143" class="LineNr">143 </span> <span id="L144" class="LineNr">144 </span><span class="Delimiter">:(scenario or_r32_with_mem_at_r32)</span> -<span id="L145" class="LineNr">145 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L145" class="LineNr">145 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L146" class="LineNr">146 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> <span id="L147" class="LineNr">147 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L148" class="LineNr">148 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L149" class="LineNr">149 </span> <span class="Error">09</span> <span class="Constant">18</span> <span class="Comment"># or EBX with *EAX</span> <span id="L150" class="LineNr">150 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L151" class="LineNr">151 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L151" class="LineNr">151 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L152" class="LineNr">152 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L153" class="LineNr">153 </span><span class="traceContains">+run: or <a href='010---vm.cc.html#L16'>EBX</a> with r/m32</span> -<span id="L154" class="LineNr">154 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L154" class="LineNr">154 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L155" class="LineNr">155 </span><span class="traceContains">+run: storing 0xaabbccdd</span> <span id="L156" class="LineNr">156 </span> <span id="L157" class="LineNr">157 </span><span class="Comment">//:</span> <span id="L158" class="LineNr">158 </span> <span id="L159" class="LineNr">159 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L160" class="LineNr">160 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"0b"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise OR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L160" class="LineNr">160 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"0b"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise OR of r32 with rm32"</span><span class="Delimiter">);</span> <span id="L161" class="LineNr">161 </span> <span id="L162" class="LineNr">162 </span><span class="Delimiter">:(scenario or_mem_at_r32_with_r32)</span> -<span id="L163" class="LineNr">163 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L163" class="LineNr">163 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L164" class="LineNr">164 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> <span id="L165" class="LineNr">165 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L166" class="LineNr">166 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L167" class="LineNr">167 </span> 0b <span class="Constant">18</span> <span class="Comment"># or *EAX with EBX</span> <span id="L168" class="LineNr">168 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L169" class="LineNr">169 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L169" class="LineNr">169 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L170" class="LineNr">170 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L171" class="LineNr">171 </span><span class="traceContains">+run: or r/m32 with <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L172" class="LineNr">172 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L172" class="LineNr">172 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L173" class="LineNr">173 </span><span class="traceContains">+run: storing 0xaabbccdd</span> <span id="L174" class="LineNr">174 </span> <span id="L175" class="LineNr">175 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L176" class="LineNr">176 </span><span class="Normal">case</span> <span class="Constant">0x0b</span>: <span class="Delimiter">{</span> <span class="Comment">// or r/m32 with r32</span> -<span id="L177" class="LineNr">177 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L177" class="LineNr">177 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L178" class="LineNr">178 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L179" class="LineNr">179 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L179" class="LineNr">179 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L180" class="LineNr">180 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L181" class="LineNr">181 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> <span id="L182" class="LineNr">182 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -249,41 +249,41 @@ if ('onhashchange' in window) { <span id="L185" class="LineNr">185 </span><span class="SalientComment">//:: xor</span> <span id="L186" class="LineNr">186 </span> <span id="L187" class="LineNr">187 </span><span class="Delimiter">:(scenario xor_r32_with_mem_at_r32)</span> -<span id="L188" class="LineNr">188 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L188" class="LineNr">188 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L189" class="LineNr">189 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> <span id="L190" class="LineNr">190 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L191" class="LineNr">191 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L192" class="LineNr">192 </span> <span class="Constant">31</span> <span class="Constant">18</span> <span class="Comment"># xor EBX with *EAX</span> <span id="L193" class="LineNr">193 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L194" class="LineNr">194 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L194" class="LineNr">194 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L195" class="LineNr">195 </span>0d 0c bb aa <span class="Comment"># 0xaabb0c0d</span> <span id="L196" class="LineNr">196 </span><span class="traceContains">+run: xor <a href='010---vm.cc.html#L16'>EBX</a> with r/m32</span> -<span id="L197" class="LineNr">197 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L197" class="LineNr">197 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L198" class="LineNr">198 </span><span class="traceContains">+run: storing 0x0a0bccdd</span> <span id="L199" class="LineNr">199 </span> <span id="L200" class="LineNr">200 </span><span class="Comment">//:</span> <span id="L201" class="LineNr">201 </span> <span id="L202" class="LineNr">202 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L203" class="LineNr">203 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"33"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise XOR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L203" class="LineNr">203 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"33"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise XOR of r32 with rm32"</span><span class="Delimiter">);</span> <span id="L204" class="LineNr">204 </span> <span id="L205" class="LineNr">205 </span><span class="Delimiter">:(scenario xor_mem_at_r32_with_r32)</span> -<span id="L206" class="LineNr">206 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L206" class="LineNr">206 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L207" class="LineNr">207 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> <span id="L208" class="LineNr">208 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L209" class="LineNr">209 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L210" class="LineNr">210 </span> <span class="Constant">33</span> <span class="Constant">18</span> <span class="Comment"># xor *EAX with EBX</span> <span id="L211" class="LineNr">211 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L212" class="LineNr">212 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L212" class="LineNr">212 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L213" class="LineNr">213 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L214" class="LineNr">214 </span><span class="traceContains">+run: xor r/m32 with <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L215" class="LineNr">215 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L215" class="LineNr">215 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L216" class="LineNr">216 </span><span class="traceContains">+run: storing 0xaabbccdd</span> <span id="L217" class="LineNr">217 </span> <span id="L218" class="LineNr">218 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L219" class="LineNr">219 </span><span class="Normal">case</span> <span class="Constant">0x33</span>: <span class="Delimiter">{</span> <span class="Comment">// xor r/m32 with r32</span> -<span id="L220" class="LineNr">220 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L220" class="LineNr">220 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L221" class="LineNr">221 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L222" class="LineNr">222 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L222" class="LineNr">222 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L223" class="LineNr">223 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L224" class="LineNr">224 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> <span id="L225" class="LineNr">225 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -292,82 +292,82 @@ if ('onhashchange' in window) { <span id="L228" class="LineNr">228 </span><span class="SalientComment">//:: not</span> <span id="L229" class="LineNr">229 </span> <span id="L230" class="LineNr">230 </span><span class="Delimiter">:(scenario not_of_mem_at_r32)</span> -<span id="L231" class="LineNr">231 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L231" class="LineNr">231 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L232" class="LineNr">232 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L233" class="LineNr">233 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L234" class="LineNr">234 </span> f7 <span class="Constant">13</span> <span class="Comment"># negate *EBX</span> <span id="L235" class="LineNr">235 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 010 (subop not) 011 (dest EBX)</span> -<span id="L236" class="LineNr">236 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L236" class="LineNr">236 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L237" class="LineNr">237 </span>ff <span class="PreProc">0</span><span class="Constant">0</span> <span class="Constant">0f</span> <span class="Constant">0f</span> <span class="Comment"># 0x0f0f00ff</span> <span id="L238" class="LineNr">238 </span><span class="traceContains">+run: operate on r/m32</span> -<span id="L239" class="LineNr">239 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L239" class="LineNr">239 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L240" class="LineNr">240 </span><span class="traceContains">+run: subop: not</span> <span id="L241" class="LineNr">241 </span><span class="traceContains">+run: storing 0xf0f0ff00</span> <span id="L242" class="LineNr">242 </span> <span id="L243" class="LineNr">243 </span><span class="SalientComment">//:: compare (cmp)</span> <span id="L244" class="LineNr">244 </span> <span id="L245" class="LineNr">245 </span><span class="Delimiter">:(scenario compare_mem_at_r32_with_r32_greater)</span> -<span id="L246" class="LineNr">246 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L246" class="LineNr">246 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L247" class="LineNr">247 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c07;</span> <span id="L248" class="LineNr">248 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L249" class="LineNr">249 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L250" class="LineNr">250 </span> <span class="Constant">39</span> <span class="Constant">18</span> <span class="Comment"># compare EBX with *EAX</span> <span id="L251" class="LineNr">251 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L252" class="LineNr">252 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L252" class="LineNr">252 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L253" class="LineNr">253 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L254" class="LineNr">254 </span><span class="traceContains">+run: compare <a href='010---vm.cc.html#L16'>EBX</a> with r/m32</span> -<span id="L255" class="LineNr">255 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L255" class="LineNr">255 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L256" class="LineNr">256 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> <span id="L257" class="LineNr">257 </span> <span id="L258" class="LineNr">258 </span><span class="Delimiter">:(scenario compare_mem_at_r32_with_r32_lesser)</span> -<span id="L259" class="LineNr">259 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L259" class="LineNr">259 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L260" class="LineNr">260 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> <span id="L261" class="LineNr">261 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L262" class="LineNr">262 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L263" class="LineNr">263 </span> <span class="Constant">39</span> <span class="Constant">18</span> <span class="Comment"># compare EBX with *EAX</span> <span id="L264" class="LineNr">264 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L265" class="LineNr">265 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L265" class="LineNr">265 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L266" class="LineNr">266 </span><span class="PreProc">0</span><span class="Constant">7</span> 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L267" class="LineNr">267 </span><span class="traceContains">+run: compare <a href='010---vm.cc.html#L16'>EBX</a> with r/m32</span> -<span id="L268" class="LineNr">268 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L268" class="LineNr">268 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L269" class="LineNr">269 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> <span id="L270" class="LineNr">270 </span> <span id="L271" class="LineNr">271 </span><span class="Delimiter">:(scenario compare_mem_at_r32_with_r32_equal)</span> -<span id="L272" class="LineNr">272 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L272" class="LineNr">272 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L273" class="LineNr">273 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> <span id="L274" class="LineNr">274 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L275" class="LineNr">275 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L276" class="LineNr">276 </span> <span class="Constant">39</span> <span class="Constant">18</span> <span class="Comment"># compare EBX with *EAX</span> <span id="L277" class="LineNr">277 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L278" class="LineNr">278 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L278" class="LineNr">278 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L279" class="LineNr">279 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L280" class="LineNr">280 </span><span class="traceContains">+run: compare <a href='010---vm.cc.html#L16'>EBX</a> with r/m32</span> -<span id="L281" class="LineNr">281 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L281" class="LineNr">281 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L282" class="LineNr">282 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> <span id="L283" class="LineNr">283 </span> <span id="L284" class="LineNr">284 </span><span class="Comment">//:</span> <span id="L285" class="LineNr">285 </span> <span id="L286" class="LineNr">286 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L287" class="LineNr">287 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"3b"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if r32 < rm32"</span><span class="Delimiter">);</span> +<span id="L287" class="LineNr">287 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"3b"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if r32 < rm32"</span><span class="Delimiter">);</span> <span id="L288" class="LineNr">288 </span> <span id="L289" class="LineNr">289 </span><span class="Delimiter">:(scenario compare_r32_with_mem_at_r32_greater)</span> -<span id="L290" class="LineNr">290 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L290" class="LineNr">290 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L291" class="LineNr">291 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> <span id="L292" class="LineNr">292 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L293" class="LineNr">293 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L294" class="LineNr">294 </span> 3b <span class="Constant">18</span> <span class="Comment"># compare *EAX with EBX</span> <span id="L295" class="LineNr">295 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L296" class="LineNr">296 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L296" class="LineNr">296 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L297" class="LineNr">297 </span><span class="PreProc">0</span><span class="Constant">7</span> 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L298" class="LineNr">298 </span><span class="traceContains">+run: compare r/m32 with <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L299" class="LineNr">299 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L299" class="LineNr">299 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L300" class="LineNr">300 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> <span id="L301" class="LineNr">301 </span> <span id="L302" class="LineNr">302 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L303" class="LineNr">303 </span><span class="Normal">case</span> <span class="Constant">0x3b</span>: <span class="Delimiter">{</span> <span class="Comment">// set SF if r32 < r/m32</span> -<span id="L304" class="LineNr">304 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L304" class="LineNr">304 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L305" class="LineNr">305 </span> <span class="Normal">uint8_t</span> reg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L306" class="LineNr">306 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L306" class="LineNr">306 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare r/m32 with "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L307" class="LineNr">307 </span> <span class="Normal">int32_t</span> arg1 = Reg[reg1]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> <span id="L308" class="LineNr">308 </span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L309" class="LineNr">309 </span> <span class="Normal">int32_t</span> tmp1 = arg1 - *arg2<span class="Delimiter">;</span> @@ -375,34 +375,34 @@ if ('onhashchange' in window) { <span id="L311" class="LineNr">311 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L312" class="LineNr">312 </span> <span class="Normal">int64_t</span> tmp2 = arg1 - *arg2<span class="Delimiter">;</span> <span id="L313" class="LineNr">313 </span> <a href='010---vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> -<span id="L314" class="LineNr">314 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L314" class="LineNr">314 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << end<span class="Delimiter">();</span> <span id="L315" class="LineNr">315 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L316" class="LineNr">316 </span><span class="Delimiter">}</span> <span id="L317" class="LineNr">317 </span> <span id="L318" class="LineNr">318 </span><span class="Delimiter">:(scenario compare_r32_with_mem_at_r32_lesser)</span> -<span id="L319" class="LineNr">319 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L319" class="LineNr">319 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L320" class="LineNr">320 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c07;</span> <span id="L321" class="LineNr">321 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L322" class="LineNr">322 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L323" class="LineNr">323 </span> 3b <span class="Constant">18</span> <span class="Comment"># compare *EAX with EBX</span> <span id="L324" class="LineNr">324 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L325" class="LineNr">325 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L325" class="LineNr">325 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L326" class="LineNr">326 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L327" class="LineNr">327 </span><span class="traceContains">+run: compare r/m32 with <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L328" class="LineNr">328 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L328" class="LineNr">328 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L329" class="LineNr">329 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> <span id="L330" class="LineNr">330 </span> <span id="L331" class="LineNr">331 </span><span class="Delimiter">:(scenario compare_r32_with_mem_at_r32_equal)</span> -<span id="L332" class="LineNr">332 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L332" class="LineNr">332 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L333" class="LineNr">333 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> <span id="L334" class="LineNr">334 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L335" class="LineNr">335 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L336" class="LineNr">336 </span> 3b <span class="Constant">18</span> <span class="Comment"># compare *EAX with EBX</span> <span id="L337" class="LineNr">337 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> -<span id="L338" class="LineNr">338 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L338" class="LineNr">338 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L339" class="LineNr">339 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> <span id="L340" class="LineNr">340 </span><span class="traceContains">+run: compare r/m32 with <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L341" class="LineNr">341 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L341" class="LineNr">341 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L342" class="LineNr">342 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> <span id="L343" class="LineNr">343 </span> <span id="L344" class="LineNr">344 </span><span class="SalientComment">//:: copy (mov)</span> @@ -421,175 +421,175 @@ if ('onhashchange' in window) { <span id="L357" class="LineNr">357 </span><span class="Comment">//:</span> <span id="L358" class="LineNr">358 </span> <span id="L359" class="LineNr">359 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L360" class="LineNr">360 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"8b"</span><span class="Delimiter">,</span> <span class="Constant">"copy rm32 to r32"</span><span class="Delimiter">);</span> +<span id="L360" class="LineNr">360 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"8b"</span><span class="Delimiter">,</span> <span class="Constant">"copy rm32 to r32"</span><span class="Delimiter">);</span> <span id="L361" class="LineNr">361 </span> <span id="L362" class="LineNr">362 </span><span class="Delimiter">:(scenario copy_mem_at_r32_to_r32)</span> -<span id="L363" class="LineNr">363 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L363" class="LineNr">363 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L364" class="LineNr">364 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L365" class="LineNr">365 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L366" class="LineNr">366 </span> 8b <span class="Constant">18</span> <span class="Comment"># copy *EAX to EBX</span> <span id="L367" class="LineNr">367 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 000 (dest EAX)</span> -<span id="L368" class="LineNr">368 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L368" class="LineNr">368 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L369" class="LineNr">369 </span>af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xaf</span> <span id="L370" class="LineNr">370 </span><span class="traceContains">+run: copy r/m32 to <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L371" class="LineNr">371 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L371" class="LineNr">371 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L372" class="LineNr">372 </span><span class="traceContains">+run: storing 0x000000af</span> <span id="L373" class="LineNr">373 </span> <span id="L374" class="LineNr">374 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L375" class="LineNr">375 </span><span class="Normal">case</span> <span class="Constant">0x8b</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r32 to r/m32</span> -<span id="L376" class="LineNr">376 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L376" class="LineNr">376 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L377" class="LineNr">377 </span> <span class="Normal">uint8_t</span> reg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L378" class="LineNr">378 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy r/m32 to "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L378" class="LineNr">378 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy r/m32 to "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L379" class="LineNr">379 </span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L380" class="LineNr">380 </span> Reg[reg1]<span class="Delimiter">.</span>i = *arg2<span class="Delimiter">;</span> -<span id="L381" class="LineNr">381 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << *arg2 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L381" class="LineNr">381 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << *arg2 << end<span class="Delimiter">();</span> <span id="L382" class="LineNr">382 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L383" class="LineNr">383 </span><span class="Delimiter">}</span> <span id="L384" class="LineNr">384 </span> <span id="L385" class="LineNr">385 </span><span class="Comment">//:</span> <span id="L386" class="LineNr">386 </span> <span id="L387" class="LineNr">387 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L388" class="LineNr">388 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"88"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8 (lowermost byte of r32) to r8/m8-at-r32"</span><span class="Delimiter">);</span> +<span id="L388" class="LineNr">388 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"88"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8 (lowermost byte of r32) to r8/m8-at-r32"</span><span class="Delimiter">);</span> <span id="L389" class="LineNr">389 </span> <span id="L390" class="LineNr">390 </span><span class="Delimiter">:(scenario copy_r8_to_mem_at_r32)</span> <span id="L391" class="LineNr">391 </span><span class="Special">% Reg[EBX].i = 0x224488ab;</span> -<span id="L392" class="LineNr">392 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L392" class="LineNr">392 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L393" class="LineNr">393 </span>== <span class="Constant">0x1</span> <span id="L394" class="LineNr">394 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L395" class="LineNr">395 </span> <span class="Constant">88</span> <span class="Constant">18</span> <span class="Comment"># copy just the lowermost byte of EBX to the byte at *EAX</span> <span id="L396" class="LineNr">396 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 000 (dest EAX)</span> -<span id="L397" class="LineNr">397 </span>== <span class="Constant">0x60</span> +<span id="L397" class="LineNr">397 </span>== <span class="Constant">0x2000</span> <span id="L398" class="LineNr">398 </span>f0 cc bb aa <span class="Comment"># 0xf0 with more data in following bytes</span> <span id="L399" class="LineNr">399 </span><span class="traceContains">+run: copy lowermost byte of <a href='010---vm.cc.html#L16'>EBX</a> to r8/m8-at-r32</span> -<span id="L400" class="LineNr">400 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L400" class="LineNr">400 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L401" class="LineNr">401 </span><span class="traceContains">+run: storing 0xab</span> -<span id="L402" class="LineNr">402 </span><span class="Special">% CHECK_EQ(0xaabbccab, read_mem_u32(0x60));</span> +<span id="L402" class="LineNr">402 </span><span class="Special">% CHECK_EQ(0xaabbccab, read_mem_u32(0x2000));</span> <span id="L403" class="LineNr">403 </span> <span id="L404" class="LineNr">404 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L405" class="LineNr">405 </span><span class="Normal">case</span> <span class="Constant">0x88</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r/m8 to r8</span> -<span id="L406" class="LineNr">406 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L406" class="LineNr">406 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L407" class="LineNr">407 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L408" class="LineNr">408 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy lowermost byte of "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" to r8/m8-at-r32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L408" class="LineNr">408 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy lowermost byte of "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" to r8/m8-at-r32"</span> << end<span class="Delimiter">();</span> <span id="L409" class="LineNr">409 </span> <span class="Comment">// use unsigned to zero-extend 8-bit value to 32 bits</span> <span id="L410" class="LineNr">410 </span> <span class="Normal">uint8_t</span>* arg1 = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span><a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> <span id="L411" class="LineNr">411 </span> *arg1 = Reg[reg2]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L412" class="LineNr">412 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>*arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L412" class="LineNr">412 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>*arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L413" class="LineNr">413 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L414" class="LineNr">414 </span><span class="Delimiter">}</span> <span id="L415" class="LineNr">415 </span> <span id="L416" class="LineNr">416 </span><span class="Comment">//:</span> <span id="L417" class="LineNr">417 </span> <span id="L418" class="LineNr">418 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L419" class="LineNr">419 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"8a"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8/m8-at-r32 to r8 (lowermost byte of r32)"</span><span class="Delimiter">);</span> +<span id="L419" class="LineNr">419 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"8a"</span><span class="Delimiter">,</span> <span class="Constant">"copy r8/m8-at-r32 to r8 (lowermost byte of r32)"</span><span class="Delimiter">);</span> <span id="L420" class="LineNr">420 </span> <span id="L421" class="LineNr">421 </span><span class="Delimiter">:(scenario copy_mem_at_r32_to_r8)</span> <span id="L422" class="LineNr">422 </span><span class="Special">% Reg[EBX].i = 0xaabbcc0f; // one nibble each of lowest byte set to all 0s and all 1s, to maximize value of this test</span> -<span id="L423" class="LineNr">423 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L423" class="LineNr">423 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L424" class="LineNr">424 </span>== <span class="Constant">0x1</span> <span id="L425" class="LineNr">425 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L426" class="LineNr">426 </span> 8a <span class="Constant">18</span> <span class="Comment"># copy just the byte at *EAX to lowermost byte of EBX (clearing remaining bytes)</span> <span id="L427" class="LineNr">427 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (dest EBX) 000 (src EAX)</span> -<span id="L428" class="LineNr">428 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L428" class="LineNr">428 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L429" class="LineNr">429 </span>ab ff ff ff <span class="Comment"># 0xab with more data in following bytes</span> <span id="L430" class="LineNr">430 </span><span class="traceContains">+run: copy r8/m8-at-r32 to lowermost byte of <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L431" class="LineNr">431 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L431" class="LineNr">431 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L432" class="LineNr">432 </span><span class="traceContains">+run: storing 0xab</span> <span id="L433" class="LineNr">433 </span><span class="Comment"># remaining bytes of EBX are *not* cleared</span> <span id="L434" class="LineNr">434 </span><span class="traceContains">+run: <a href='010---vm.cc.html#L16'>EBX</a> now contains 0xaabbccab</span> <span id="L435" class="LineNr">435 </span> <span id="L436" class="LineNr">436 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L437" class="LineNr">437 </span><span class="Normal">case</span> <span class="Constant">0x8a</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r/m8 to r8</span> -<span id="L438" class="LineNr">438 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L438" class="LineNr">438 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L439" class="LineNr">439 </span> <span class="Normal">uint8_t</span> reg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L440" class="LineNr">440 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy r8/m8-at-r32 to lowermost byte of "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L440" class="LineNr">440 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy r8/m8-at-r32 to lowermost byte of "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L441" class="LineNr">441 </span> <span class="Comment">// use unsigned to zero-extend 8-bit value to 32 bits</span> <span id="L442" class="LineNr">442 </span> <span class="Normal">uint8_t</span>* arg2 = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span><a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">));</span> -<span id="L443" class="LineNr">443 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>*arg2<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L443" class="LineNr">443 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>*arg2<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L444" class="LineNr">444 </span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>&Reg[reg1]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> = *arg2<span class="Delimiter">;</span> <span class="Comment">// assumes host is little-endian</span> -<span id="L445" class="LineNr">445 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <span class="Constant">" now contains 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[reg1]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L445" class="LineNr">445 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <span class="Constant">" now contains 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[reg1]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> <span id="L446" class="LineNr">446 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L447" class="LineNr">447 </span><span class="Delimiter">}</span> <span id="L448" class="LineNr">448 </span> <span id="L449" class="LineNr">449 </span><span class="SalientComment">//:: jump</span> <span id="L450" class="LineNr">450 </span> <span id="L451" class="LineNr">451 </span><span class="Delimiter">:(scenario jump_mem_at_r32)</span> -<span id="L452" class="LineNr">452 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L452" class="LineNr">452 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L453" class="LineNr">453 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L454" class="LineNr">454 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L455" class="LineNr">455 </span> ff <span class="Constant">20</span> <span class="Comment"># jump to *EAX</span> <span id="L456" class="LineNr">456 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 100 (jump to r/m32) 000 (src EAX)</span> <span id="L457" class="LineNr">457 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> <span id="L458" class="LineNr">458 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L459" class="LineNr">459 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L459" class="LineNr">459 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L460" class="LineNr">460 </span><span class="Error">08</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 8</span> <span id="L461" class="LineNr">461 </span><span class="traceContains">+run: inst: 0x00000001</span> <span id="L462" class="LineNr">462 </span><span class="traceContains">+run: jump to r/m32</span> -<span id="L463" class="LineNr">463 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L463" class="LineNr">463 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L464" class="LineNr">464 </span><span class="traceContains">+run: jumping to 0x00000008</span> <span id="L465" class="LineNr">465 </span><span class="traceContains">+run: inst: 0x00000008</span> <span id="L466" class="LineNr">466 </span><span class="traceAbsent">-run: inst: 0x00000003</span> <span id="L467" class="LineNr">467 </span> <span id="L468" class="LineNr">468 </span><span class="Delimiter">:(before "End Op ff Subops")</span> <span id="L469" class="LineNr">469 </span><span class="Normal">case</span> <span class="Constant">4</span>: <span class="Delimiter">{</span> <span class="Comment">// jump to r/m32</span> -<span id="L470" class="LineNr">470 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump to r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L470" class="LineNr">470 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump to r/m32"</span> << end<span class="Delimiter">();</span> <span id="L471" class="LineNr">471 </span> <span class="Normal">int32_t</span>* arg2 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L472" class="LineNr">472 </span> <a href='010---vm.cc.html#L29'>EIP</a> = *arg2<span class="Delimiter">;</span> -<span id="L473" class="LineNr">473 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L473" class="LineNr">473 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << end<span class="Delimiter">();</span> <span id="L474" class="LineNr">474 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L475" class="LineNr">475 </span><span class="Delimiter">}</span> <span id="L476" class="LineNr">476 </span> <span id="L477" class="LineNr">477 </span><span class="SalientComment">//:: push</span> <span id="L478" class="LineNr">478 </span> <span id="L479" class="LineNr">479 </span><span class="Delimiter">:(scenario push_mem_at_r32)</span> -<span id="L480" class="LineNr">480 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L480" class="LineNr">480 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L481" class="LineNr">481 </span><span class="Special">% Reg[ESP].u = 0x14;</span> <span id="L482" class="LineNr">482 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L483" class="LineNr">483 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L484" class="LineNr">484 </span> ff <span class="Constant">30</span> <span class="Comment"># push *EAX to stack</span> <span id="L485" class="LineNr">485 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 110 (push r/m32) 000 (src EAX)</span> -<span id="L486" class="LineNr">486 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L486" class="LineNr">486 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L487" class="LineNr">487 </span>af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xaf</span> -<span id="L488" class="LineNr">488 </span><span class="traceContains">+run: <a href='012elf.cc.html#L85'>push</a> r/m32</span> -<span id="L489" class="LineNr">489 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L488" class="LineNr">488 </span><span class="traceContains">+run: <a href='012elf.cc.html#L89'>push</a> r/m32</span> +<span id="L489" class="LineNr">489 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L490" class="LineNr">490 </span><span class="traceContains">+run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000010</span> <span id="L491" class="LineNr">491 </span><span class="traceContains">+run: pushing value 0x000000af</span> <span id="L492" class="LineNr">492 </span> <span id="L493" class="LineNr">493 </span><span class="Delimiter">:(before "End Op ff Subops")</span> <span id="L494" class="LineNr">494 </span><span class="Normal">case</span> <span class="Constant">6</span>: <span class="Delimiter">{</span> <span class="Comment">// push r/m32 to stack</span> -<span id="L495" class="LineNr">495 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L495" class="LineNr">495 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push r/m32"</span> << end<span class="Delimiter">();</span> <span id="L496" class="LineNr">496 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* val = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L497" class="LineNr">497 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span>*val<span class="Delimiter">);</span> +<span id="L497" class="LineNr">497 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span>*val<span class="Delimiter">);</span> <span id="L498" class="LineNr">498 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L499" class="LineNr">499 </span><span class="Delimiter">}</span> <span id="L500" class="LineNr">500 </span> <span id="L501" class="LineNr">501 </span><span class="SalientComment">//:: pop</span> <span id="L502" class="LineNr">502 </span> <span id="L503" class="LineNr">503 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L504" class="LineNr">504 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to rm32"</span><span class="Delimiter">);</span> +<span id="L504" class="LineNr">504 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to rm32"</span><span class="Delimiter">);</span> <span id="L505" class="LineNr">505 </span> <span id="L506" class="LineNr">506 </span><span class="Delimiter">:(scenario pop_mem_at_r32)</span> <span id="L507" class="LineNr">507 </span><span class="Special">% Reg[EAX].i = 0x60;</span> -<span id="L508" class="LineNr">508 </span><span class="Special">% Reg[ESP].u = 0x10;</span> +<span id="L508" class="LineNr">508 </span><span class="Special">% Reg[ESP].u = 0x2000;</span> <span id="L509" class="LineNr">509 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L510" class="LineNr">510 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L511" class="LineNr">511 </span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># pop stack into *EAX</span> <span id="L512" class="LineNr">512 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 000 (pop r/m32) 000 (dest EAX)</span> -<span id="L513" class="LineNr">513 </span>== <span class="Constant">0x10</span> <span class="Comment"># data segment</span> +<span id="L513" class="LineNr">513 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L514" class="LineNr">514 </span><span class="Constant">30</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x30</span> -<span id="L515" class="LineNr">515 </span><span class="traceContains">+run: <a href='013direct_addressing.cc.html#L585'>pop</a> into r/m32</span> +<span id="L515" class="LineNr">515 </span><span class="traceContains">+run: <a href='013direct_addressing.cc.html#L586'>pop</a> into r/m32</span> <span id="L516" class="LineNr">516 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> <span id="L517" class="LineNr">517 </span><span class="traceContains">+run: popping value 0x00000030</span> -<span id="L518" class="LineNr">518 </span><span class="traceContains">+run: incrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000014</span> +<span id="L518" class="LineNr">518 </span><span class="traceContains">+run: incrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00002004</span> <span id="L519" class="LineNr">519 </span> <span id="L520" class="LineNr">520 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L521" class="LineNr">521 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r/m32</span> -<span id="L522" class="LineNr">522 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L522" class="LineNr">522 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L523" class="LineNr">523 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span id="L524" class="LineNr">524 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L525" class="LineNr">525 </span> <span class="Normal">case</span> <span class="Constant">0</span>: <span class="Delimiter">{</span> -<span id="L526" class="LineNr">526 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L526" class="LineNr">526 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into r/m32"</span> << end<span class="Delimiter">();</span> <span id="L527" class="LineNr">527 </span> <span class="Normal">int32_t</span>* dest = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L528" class="LineNr">528 </span> *dest = <a href='013direct_addressing.cc.html#L585'>pop</a><span class="Delimiter">();</span> +<span id="L528" class="LineNr">528 </span> *dest = <a href='013direct_addressing.cc.html#L586'>pop</a><span class="Delimiter">();</span> <span id="L529" class="LineNr">529 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L530" class="LineNr">530 </span> <span class="Delimiter">}</span> <span id="L531" class="LineNr">531 </span> <span class="Delimiter">}</span> @@ -602,34 +602,34 @@ if ('onhashchange' in window) { <span id="L538" class="LineNr">538 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> <span id="L539" class="LineNr">539 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L540" class="LineNr">540 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L541" class="LineNr">541 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1d <span class="Constant">60</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *0x60</span> +<span id="L541" class="LineNr">541 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1d <span class="PreProc">0</span><span class="Constant">0</span> <span class="Constant">20</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *0x2000</span> <span id="L542" class="LineNr">542 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 101 (dest in disp32)</span> -<span id="L543" class="LineNr">543 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L543" class="LineNr">543 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L544" class="LineNr">544 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L545" class="LineNr">545 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L546" class="LineNr">546 </span><span class="traceContains">+run: effective address is 0x60 (disp32)</span> +<span id="L546" class="LineNr">546 </span><span class="traceContains">+run: effective address is 0x2000 (disp32)</span> <span id="L547" class="LineNr">547 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L548" class="LineNr">548 </span> <span id="L549" class="LineNr">549 </span><span class="Delimiter">:(before "End Mod 0 Special-cases(addr)")</span> <span id="L550" class="LineNr">550 </span><span class="Normal">case</span> <span class="Constant">5</span>: <span class="Comment">// exception: mod 0b00 rm 0b101 => incoming disp32</span> -<span id="L551" class="LineNr">551 </span> addr = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L552" class="LineNr">552 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (disp32)"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L551" class="LineNr">551 </span> addr = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L552" class="LineNr">552 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (disp32)"</span> << end<span class="Delimiter">();</span> <span id="L553" class="LineNr">553 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L554" class="LineNr">554 </span> <span id="L555" class="LineNr">555 </span><span class="Comment">//:</span> <span id="L556" class="LineNr">556 </span> <span id="L557" class="LineNr">557 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_disp8)</span> <span id="L558" class="LineNr">558 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L559" class="LineNr">559 </span><span class="Special">% Reg[EAX].i = 0x5e; // dest</span> +<span id="L559" class="LineNr">559 </span><span class="Special">% Reg[EAX].i = 0x1ffe; // dest</span> <span id="L560" class="LineNr">560 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L561" class="LineNr">561 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L562" class="LineNr">562 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">58</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="Comment"># add EBX to *(EAX+2)</span> <span id="L563" class="LineNr">563 </span><span class="Comment"># ModR/M in binary: 01 (indirect+disp8 mode) 011 (src EBX) 000 (dest EAX)</span> -<span id="L564" class="LineNr">564 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L564" class="LineNr">564 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L565" class="LineNr">565 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L566" class="LineNr">566 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L567" class="LineNr">567 </span><span class="traceContains">+run: effective address is initially 0x5e (EAX)</span> -<span id="L568" class="LineNr">568 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp8)</span> +<span id="L567" class="LineNr">567 </span><span class="traceContains">+run: effective address is initially 0x1ffe (EAX)</span> +<span id="L568" class="LineNr">568 </span><span class="traceContains">+run: effective address is 0x2000 (after adding disp8)</span> <span id="L569" class="LineNr">569 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L570" class="LineNr">570 </span> <span id="L571" class="LineNr">571 </span><span class="Delimiter">:(before "End Mod Special-cases(addr)")</span> @@ -637,44 +637,44 @@ if ('onhashchange' in window) { <span id="L573" class="LineNr">573 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L574" class="LineNr">574 </span> <span class="Normal">default</span>: <span id="L575" class="LineNr">575 </span> addr = Reg[rm]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L576" class="LineNr">576 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L576" class="LineNr">576 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << end<span class="Delimiter">();</span> <span id="L577" class="LineNr">577 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L578" class="LineNr">578 </span> <span class="Comment">// End Mod 1 Special-cases(addr)</span> <span id="L579" class="LineNr">579 </span> <span class="Delimiter">}</span> <span id="L580" class="LineNr">580 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>addr > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L581" class="LineNr">581 </span> addr += <span class="Normal">static_cast</span><<span class="Normal">int8_t</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> -<span id="L582" class="LineNr">582 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding disp8)"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L581" class="LineNr">581 </span> addr += <span class="Normal">static_cast</span><<span class="Normal">int8_t</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> +<span id="L582" class="LineNr">582 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding disp8)"</span> << end<span class="Delimiter">();</span> <span id="L583" class="LineNr">583 </span> <span class="Delimiter">}</span> <span id="L584" class="LineNr">584 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L585" class="LineNr">585 </span> <span id="L586" class="LineNr">586 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_negative_disp8)</span> <span id="L587" class="LineNr">587 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L588" class="LineNr">588 </span><span class="Special">% Reg[EAX].i = 0x61; // dest</span> +<span id="L588" class="LineNr">588 </span><span class="Special">% Reg[EAX].i = 0x2001; // dest</span> <span id="L589" class="LineNr">589 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L590" class="LineNr">590 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L591" class="LineNr">591 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">58</span> ff <span class="Comment"># add EBX to *(EAX-1)</span> <span id="L592" class="LineNr">592 </span><span class="Comment"># ModR/M in binary: 01 (indirect+disp8 mode) 011 (src EBX) 000 (dest EAX)</span> -<span id="L593" class="LineNr">593 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L593" class="LineNr">593 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L594" class="LineNr">594 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L595" class="LineNr">595 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L596" class="LineNr">596 </span><span class="traceContains">+run: effective address is initially 0x61 (EAX)</span> -<span id="L597" class="LineNr">597 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp8)</span> +<span id="L596" class="LineNr">596 </span><span class="traceContains">+run: effective address is initially 0x2001 (EAX)</span> +<span id="L597" class="LineNr">597 </span><span class="traceContains">+run: effective address is 0x2000 (after adding disp8)</span> <span id="L598" class="LineNr">598 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L599" class="LineNr">599 </span> <span id="L600" class="LineNr">600 </span><span class="Comment">//:</span> <span id="L601" class="LineNr">601 </span> <span id="L602" class="LineNr">602 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_disp32)</span> <span id="L603" class="LineNr">603 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L604" class="LineNr">604 </span><span class="Special">% Reg[EAX].i = 0x5e; // dest</span> +<span id="L604" class="LineNr">604 </span><span class="Special">% Reg[EAX].i = 0x1ffe; // dest</span> <span id="L605" class="LineNr">605 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L606" class="LineNr">606 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L607" class="LineNr">607 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">98</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *(EAX+2)</span> <span id="L608" class="LineNr">608 </span><span class="Comment"># ModR/M in binary: 10 (indirect+disp32 mode) 011 (src EBX) 000 (dest EAX)</span> -<span id="L609" class="LineNr">609 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L609" class="LineNr">609 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L610" class="LineNr">610 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L611" class="LineNr">611 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L612" class="LineNr">612 </span><span class="traceContains">+run: effective address is initially 0x5e (EAX)</span> -<span id="L613" class="LineNr">613 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp32)</span> +<span id="L612" class="LineNr">612 </span><span class="traceContains">+run: effective address is initially 0x1ffe (EAX)</span> +<span id="L613" class="LineNr">613 </span><span class="traceContains">+run: effective address is 0x2000 (after adding disp32)</span> <span id="L614" class="LineNr">614 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L615" class="LineNr">615 </span> <span id="L616" class="LineNr">616 </span><span class="Delimiter">:(before "End Mod Special-cases(addr)")</span> @@ -682,49 +682,49 @@ if ('onhashchange' in window) { <span id="L618" class="LineNr">618 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L619" class="LineNr">619 </span> <span class="Normal">default</span>: <span id="L620" class="LineNr">620 </span> addr = Reg[rm]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L621" class="LineNr">621 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L621" class="LineNr">621 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << end<span class="Delimiter">();</span> <span id="L622" class="LineNr">622 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L623" class="LineNr">623 </span> <span class="Comment">// End Mod 2 Special-cases(addr)</span> <span id="L624" class="LineNr">624 </span> <span class="Delimiter">}</span> <span id="L625" class="LineNr">625 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>addr > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L626" class="LineNr">626 </span> addr += <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L627" class="LineNr">627 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding disp32)"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L626" class="LineNr">626 </span> addr += <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L627" class="LineNr">627 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding disp32)"</span> << end<span class="Delimiter">();</span> <span id="L628" class="LineNr">628 </span> <span class="Delimiter">}</span> <span id="L629" class="LineNr">629 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L630" class="LineNr">630 </span> <span id="L631" class="LineNr">631 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_negative_disp32)</span> <span id="L632" class="LineNr">632 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L633" class="LineNr">633 </span><span class="Special">% Reg[EAX].i = 0x61; // dest</span> +<span id="L633" class="LineNr">633 </span><span class="Special">% Reg[EAX].i = 0x2001; // dest</span> <span id="L634" class="LineNr">634 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L635" class="LineNr">635 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L636" class="LineNr">636 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">98</span> ff ff ff ff <span class="Comment"># add EBX to *(EAX-1)</span> <span id="L637" class="LineNr">637 </span><span class="Comment"># ModR/M in binary: 10 (indirect+disp32 mode) 011 (src EBX) 000 (dest EAX)</span> -<span id="L638" class="LineNr">638 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L638" class="LineNr">638 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L639" class="LineNr">639 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L640" class="LineNr">640 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L641" class="LineNr">641 </span><span class="traceContains">+run: effective address is initially 0x61 (EAX)</span> -<span id="L642" class="LineNr">642 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp32)</span> +<span id="L641" class="LineNr">641 </span><span class="traceContains">+run: effective address is initially 0x2001 (EAX)</span> +<span id="L642" class="LineNr">642 </span><span class="traceContains">+run: effective address is 0x2000 (after adding disp32)</span> <span id="L643" class="LineNr">643 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L644" class="LineNr">644 </span> <span id="L645" class="LineNr">645 </span><span class="SalientComment">//:: lea</span> <span id="L646" class="LineNr">646 </span> <span id="L647" class="LineNr">647 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L648" class="LineNr">648 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">"load effective address of memory in rm32 into r32"</span><span class="Delimiter">);</span> +<span id="L648" class="LineNr">648 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">"load effective address of memory in rm32 into r32"</span><span class="Delimiter">);</span> <span id="L649" class="LineNr">649 </span> <span id="L650" class="LineNr">650 </span><span class="Delimiter">:(scenario lea)</span> -<span id="L651" class="LineNr">651 </span><span class="Special">% Reg[EAX].u = 0x60;</span> +<span id="L651" class="LineNr">651 </span><span class="Special">% Reg[EAX].u = 0x2000;</span> <span id="L652" class="LineNr">652 </span>== <span class="Constant">0x1</span> <span id="L653" class="LineNr">653 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L654" class="LineNr">654 </span> 8d <span class="Constant">18</span> <span id="L655" class="LineNr">655 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (dest EBX) 000 (src EAX)</span> <span id="L656" class="LineNr">656 </span><span class="traceContains">+run: lea into <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L657" class="LineNr">657 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L657" class="LineNr">657 </span><span class="traceContains">+run: effective address is 0x2000 (EAX)</span> <span id="L658" class="LineNr">658 </span> <span id="L659" class="LineNr">659 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L660" class="LineNr">660 </span><span class="Normal">case</span> <span class="Constant">0x8d</span>: <span class="Delimiter">{</span> <span class="Comment">// lea m32 to r32</span> -<span id="L661" class="LineNr">661 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L661" class="LineNr">661 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L662" class="LineNr">662 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L663" class="LineNr">663 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"lea into "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L663" class="LineNr">663 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"lea into "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L664" class="LineNr">664 </span> Reg[arg1]<span class="Delimiter">.</span>u = <a href='013direct_addressing.cc.html#L43'>effective_address_number</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> <span id="L665" class="LineNr">665 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L666" class="LineNr">666 </span><span class="Delimiter">}</span> diff --git a/html/subx/015immediate_addressing.cc.html b/html/subx/015immediate_addressing.cc.html index 1a1182fc..83ac6f4f 100644 --- a/html/subx/015immediate_addressing.cc.html +++ b/html/subx/015immediate_addressing.cc.html @@ -65,7 +65,7 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="Comment">//: instructions that (immediately) contain an argument to act with</span> <span id="L2" class="LineNr"> 2 </span> <span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"81"</span><span class="Delimiter">,</span> <span class="Constant">"combine rm32 with imm32 based on subop"</span><span class="Delimiter">);</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"81"</span><span class="Delimiter">,</span> <span class="Constant">"combine rm32 with imm32 based on subop"</span><span class="Delimiter">);</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario add_imm32_to_r32)</span> <span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[EBX].i = 1;</span> @@ -81,20 +81,20 @@ if ('onhashchange' in window) { <span id="L17" class="LineNr"> 17 </span> <span id="L18" class="LineNr"> 18 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L19" class="LineNr"> 19 </span><span class="Normal">case</span> <span class="Constant">0x81</span>: <span class="Delimiter">{</span> <span class="Comment">// combine imm32 with r/m32</span> -<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"combine imm32 with r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L21" class="LineNr"> 21 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"combine imm32 with r/m32"</span> << end<span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L22" class="LineNr"> 22 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L23" class="LineNr"> 23 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L24" class="LineNr"> 24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"imm32 is 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L24" class="LineNr"> 24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"imm32 is 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << end<span class="Delimiter">();</span> <span id="L25" class="LineNr"> 25 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span class="Comment">// middle 3 'reg opcode' bits</span> <span id="L26" class="LineNr"> 26 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L27" class="LineNr"> 27 </span> <span class="Normal">case</span> <span class="Constant">0</span>: -<span id="L28" class="LineNr"> 28 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop add"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L28" class="LineNr"> 28 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop add"</span> << end<span class="Delimiter">();</span> <span id="L29" class="LineNr"> 29 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L30" class="LineNr"> 30 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L31" class="LineNr"> 31 </span> <span class="Comment">// End Op 81 Subops</span> <span id="L32" class="LineNr"> 32 </span> <span class="Normal">default</span>: -<span id="L33" class="LineNr"> 33 </span> cerr << <span class="Constant">"unrecognized sub-opcode after 81: "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>subop<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L33" class="LineNr"> 33 </span> cerr << <span class="Constant">"unrecognized sub-opcode after 81: "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>subop<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span id="L34" class="LineNr"> 34 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L35" class="LineNr"> 35 </span> <span class="Delimiter">}</span> <span id="L36" class="LineNr"> 36 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -103,15 +103,15 @@ if ('onhashchange' in window) { <span id="L39" class="LineNr"> 39 </span><span class="Comment">//:</span> <span id="L40" class="LineNr"> 40 </span> <span id="L41" class="LineNr"> 41 </span><span class="Delimiter">:(scenario add_imm32_to_mem_at_r32)</span> -<span id="L42" class="LineNr"> 42 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L42" class="LineNr"> 42 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L43" class="LineNr"> 43 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L44" class="LineNr"> 44 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L45" class="LineNr"> 45 </span> <span class="Constant">81</span> <span class="PreProc">0</span><span class="Constant">3</span> 0a 0b 0c 0d <span class="Comment"># add 0x0d0c0b0a to *EBX</span> <span id="L46" class="LineNr"> 46 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 000 (add imm32) 011 (dest EBX)</span> -<span id="L47" class="LineNr"> 47 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L47" class="LineNr"> 47 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L48" class="LineNr"> 48 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L49" class="LineNr"> 49 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L50" class="LineNr"> 50 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L50" class="LineNr"> 50 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L51" class="LineNr"> 51 </span><span class="traceContains">+run: imm32 is 0x0d0c0b0a</span> <span id="L52" class="LineNr"> 52 </span><span class="traceContains">+run: subop add</span> <span id="L53" class="LineNr"> 53 </span><span class="traceContains">+run: storing 0x0d0c0b0b</span> @@ -119,7 +119,7 @@ if ('onhashchange' in window) { <span id="L55" class="LineNr"> 55 </span><span class="SalientComment">//:: subtract</span> <span id="L56" class="LineNr"> 56 </span> <span id="L57" class="LineNr"> 57 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L58" class="LineNr"> 58 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"2d"</span><span class="Delimiter">,</span> <span class="Constant">"subtract imm32 from R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L58" class="LineNr"> 58 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"2d"</span><span class="Delimiter">,</span> <span class="Constant">"subtract imm32 from R0 (EAX)"</span><span class="Delimiter">);</span> <span id="L59" class="LineNr"> 59 </span> <span id="L60" class="LineNr"> 60 </span><span class="Delimiter">:(scenario subtract_imm32_from_eax)</span> <span id="L61" class="LineNr"> 61 </span><span class="Special">% Reg[EAX].i = 0x0d0c0baa;</span> @@ -131,8 +131,8 @@ if ('onhashchange' in window) { <span id="L67" class="LineNr"> 67 </span> <span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L69" class="LineNr"> 69 </span><span class="Normal">case</span> <span class="Constant">0x2d</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract imm32 from EAX</span> -<span id="L70" class="LineNr"> 70 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" from EAX"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << <span class="Constant">" from EAX"</span> << end<span class="Delimiter">();</span> <span id="L72" class="LineNr"> 72 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L73" class="LineNr"> 73 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L74" class="LineNr"> 74 </span><span class="Delimiter">}</span> @@ -140,22 +140,22 @@ if ('onhashchange' in window) { <span id="L76" class="LineNr"> 76 </span><span class="Comment">//:</span> <span id="L77" class="LineNr"> 77 </span> <span id="L78" class="LineNr"> 78 </span><span class="Delimiter">:(scenario subtract_imm32_from_mem_at_r32)</span> -<span id="L79" class="LineNr"> 79 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L79" class="LineNr"> 79 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L80" class="LineNr"> 80 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L81" class="LineNr"> 81 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L82" class="LineNr"> 82 </span> <span class="Constant">81</span> 2b <span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># subtract 1 from *EBX</span> <span id="L83" class="LineNr"> 83 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 101 (subtract imm32) 011 (dest EBX)</span> -<span id="L84" class="LineNr"> 84 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L84" class="LineNr"> 84 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L85" class="LineNr"> 85 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 10</span> <span id="L86" class="LineNr"> 86 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L87" class="LineNr"> 87 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L87" class="LineNr"> 87 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L88" class="LineNr"> 88 </span><span class="traceContains">+run: imm32 is 0x00000001</span> <span id="L89" class="LineNr"> 89 </span><span class="traceContains">+run: subop subtract</span> <span id="L90" class="LineNr"> 90 </span><span class="traceContains">+run: storing 0x00000009</span> <span id="L91" class="LineNr"> 91 </span> <span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> <span id="L93" class="LineNr"> 93 </span><span class="Normal">case</span> <span class="Constant">5</span>: <span class="Delimiter">{</span> -<span id="L94" class="LineNr"> 94 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop subtract"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L94" class="LineNr"> 94 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop subtract"</span> << end<span class="Delimiter">();</span> <span id="L95" class="LineNr"> 95 </span> <a href='010---vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L96" class="LineNr"> 96 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L97" class="LineNr"> 97 </span><span class="Delimiter">}</span> @@ -177,7 +177,7 @@ if ('onhashchange' in window) { <span id="L113" class="LineNr">113 </span><span class="SalientComment">//:: and</span> <span id="L114" class="LineNr">114 </span> <span id="L115" class="LineNr">115 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L116" class="LineNr">116 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"25"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise AND of imm32 with R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L116" class="LineNr">116 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"25"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise AND of imm32 with R0 (EAX)"</span><span class="Delimiter">);</span> <span id="L117" class="LineNr">117 </span> <span id="L118" class="LineNr">118 </span><span class="Delimiter">:(scenario and_imm32_with_eax)</span> <span id="L119" class="LineNr">119 </span><span class="Special">% Reg[EAX].i = 0xff;</span> @@ -189,8 +189,8 @@ if ('onhashchange' in window) { <span id="L125" class="LineNr">125 </span> <span id="L126" class="LineNr">126 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L127" class="LineNr">127 </span><span class="Normal">case</span> <span class="Constant">0x25</span>: <span class="Delimiter">{</span> <span class="Comment">// and imm32 with EAX</span> -<span id="L128" class="LineNr">128 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L129" class="LineNr">129 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L128" class="LineNr">128 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L129" class="LineNr">129 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << end<span class="Delimiter">();</span> <span id="L130" class="LineNr">130 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L131" class="LineNr">131 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span> @@ -198,22 +198,22 @@ if ('onhashchange' in window) { <span id="L134" class="LineNr">134 </span><span class="Comment">//:</span> <span id="L135" class="LineNr">135 </span> <span id="L136" class="LineNr">136 </span><span class="Delimiter">:(scenario and_imm32_with_mem_at_r32)</span> -<span id="L137" class="LineNr">137 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L137" class="LineNr">137 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L138" class="LineNr">138 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L139" class="LineNr">139 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L140" class="LineNr">140 </span> <span class="Constant">81</span> <span class="Constant">23</span> 0a 0b 0c 0d <span class="Comment"># and 0x0d0c0b0a with *EBX</span> <span id="L141" class="LineNr">141 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 100 (and imm32) 011 (dest EBX)</span> -<span id="L142" class="LineNr">142 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L142" class="LineNr">142 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L143" class="LineNr">143 </span>ff <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xff</span> <span id="L144" class="LineNr">144 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L145" class="LineNr">145 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L145" class="LineNr">145 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L146" class="LineNr">146 </span><span class="traceContains">+run: imm32 is 0x0d0c0b0a</span> <span id="L147" class="LineNr">147 </span><span class="traceContains">+run: subop and</span> <span id="L148" class="LineNr">148 </span><span class="traceContains">+run: storing 0x0000000a</span> <span id="L149" class="LineNr">149 </span> <span id="L150" class="LineNr">150 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> <span id="L151" class="LineNr">151 </span><span class="Normal">case</span> <span class="Constant">4</span>: <span class="Delimiter">{</span> -<span id="L152" class="LineNr">152 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop and"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L152" class="LineNr">152 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop and"</span> << end<span class="Delimiter">();</span> <span id="L153" class="LineNr">153 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L154" class="LineNr">154 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span> @@ -235,7 +235,7 @@ if ('onhashchange' in window) { <span id="L171" class="LineNr">171 </span><span class="SalientComment">//:: or</span> <span id="L172" class="LineNr">172 </span> <span id="L173" class="LineNr">173 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L174" class="LineNr">174 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"0d"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise OR of imm32 with R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L174" class="LineNr">174 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"0d"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise OR of imm32 with R0 (EAX)"</span><span class="Delimiter">);</span> <span id="L175" class="LineNr">175 </span> <span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario or_imm32_with_eax)</span> <span id="L177" class="LineNr">177 </span><span class="Special">% Reg[EAX].i = 0xd0c0b0a0;</span> @@ -247,8 +247,8 @@ if ('onhashchange' in window) { <span id="L183" class="LineNr">183 </span> <span id="L184" class="LineNr">184 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L185" class="LineNr">185 </span><span class="Normal">case</span> <span class="Constant">0x0d</span>: <span class="Delimiter">{</span> <span class="Comment">// or imm32 with EAX</span> -<span id="L186" class="LineNr">186 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L187" class="LineNr">187 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L186" class="LineNr">186 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L187" class="LineNr">187 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << end<span class="Delimiter">();</span> <span id="L188" class="LineNr">188 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L189" class="LineNr">189 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L190" class="LineNr">190 </span><span class="Delimiter">}</span> @@ -256,22 +256,22 @@ if ('onhashchange' in window) { <span id="L192" class="LineNr">192 </span><span class="Comment">//:</span> <span id="L193" class="LineNr">193 </span> <span id="L194" class="LineNr">194 </span><span class="Delimiter">:(scenario or_imm32_with_mem_at_r32)</span> -<span id="L195" class="LineNr">195 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L195" class="LineNr">195 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L196" class="LineNr">196 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L197" class="LineNr">197 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L198" class="LineNr">198 </span> <span class="Constant">81</span> 0b 0a 0b 0c 0d <span class="Comment"># or 0x0d0c0b0a with *EBX</span> <span id="L199" class="LineNr">199 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 001 (or imm32) 011 (dest EBX)</span> -<span id="L200" class="LineNr">200 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L200" class="LineNr">200 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L201" class="LineNr">201 </span>a0 b0 c0 d0 <span class="Comment"># 0xd0c0b0a0</span> <span id="L202" class="LineNr">202 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L203" class="LineNr">203 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L203" class="LineNr">203 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L204" class="LineNr">204 </span><span class="traceContains">+run: imm32 is 0x0d0c0b0a</span> <span id="L205" class="LineNr">205 </span><span class="traceContains">+run: subop or</span> <span id="L206" class="LineNr">206 </span><span class="traceContains">+run: storing 0xddccbbaa</span> <span id="L207" class="LineNr">207 </span> <span id="L208" class="LineNr">208 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> <span id="L209" class="LineNr">209 </span><span class="Normal">case</span> <span class="Constant">1</span>: <span class="Delimiter">{</span> -<span id="L210" class="LineNr">210 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop or"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L210" class="LineNr">210 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop or"</span> << end<span class="Delimiter">();</span> <span id="L211" class="LineNr">211 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L212" class="LineNr">212 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L213" class="LineNr">213 </span><span class="Delimiter">}</span> @@ -291,7 +291,7 @@ if ('onhashchange' in window) { <span id="L227" class="LineNr">227 </span><span class="SalientComment">//:: xor</span> <span id="L228" class="LineNr">228 </span> <span id="L229" class="LineNr">229 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L230" class="LineNr">230 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"35"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise XOR of imm32 with R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L230" class="LineNr">230 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"35"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise XOR of imm32 with R0 (EAX)"</span><span class="Delimiter">);</span> <span id="L231" class="LineNr">231 </span> <span id="L232" class="LineNr">232 </span><span class="Delimiter">:(scenario xor_imm32_with_eax)</span> <span id="L233" class="LineNr">233 </span><span class="Special">% Reg[EAX].i = 0xddccb0a0;</span> @@ -303,8 +303,8 @@ if ('onhashchange' in window) { <span id="L239" class="LineNr">239 </span> <span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L241" class="LineNr">241 </span><span class="Normal">case</span> <span class="Constant">0x35</span>: <span class="Delimiter">{</span> <span class="Comment">// xor imm32 with EAX</span> -<span id="L242" class="LineNr">242 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L243" class="LineNr">243 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L242" class="LineNr">242 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L243" class="LineNr">243 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << end<span class="Delimiter">();</span> <span id="L244" class="LineNr">244 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L245" class="LineNr">245 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L246" class="LineNr">246 </span><span class="Delimiter">}</span> @@ -312,22 +312,22 @@ if ('onhashchange' in window) { <span id="L248" class="LineNr">248 </span><span class="Comment">//:</span> <span id="L249" class="LineNr">249 </span> <span id="L250" class="LineNr">250 </span><span class="Delimiter">:(scenario xor_imm32_with_mem_at_r32)</span> -<span id="L251" class="LineNr">251 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L251" class="LineNr">251 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L252" class="LineNr">252 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L253" class="LineNr">253 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L254" class="LineNr">254 </span> <span class="Constant">81</span> <span class="Constant">33</span> 0a 0b 0c 0d <span class="Comment"># xor 0x0d0c0b0a with *EBX</span> <span id="L255" class="LineNr">255 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 110 (xor imm32) 011 (dest EBX)</span> -<span id="L256" class="LineNr">256 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L256" class="LineNr">256 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L257" class="LineNr">257 </span>a0 b0 c0 d0 <span class="Comment"># 0xd0c0b0a0</span> <span id="L258" class="LineNr">258 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L259" class="LineNr">259 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L259" class="LineNr">259 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L260" class="LineNr">260 </span><span class="traceContains">+run: imm32 is 0x0d0c0b0a</span> <span id="L261" class="LineNr">261 </span><span class="traceContains">+run: subop xor</span> <span id="L262" class="LineNr">262 </span><span class="traceContains">+run: storing 0xddccbbaa</span> <span id="L263" class="LineNr">263 </span> <span id="L264" class="LineNr">264 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> <span id="L265" class="LineNr">265 </span><span class="Normal">case</span> <span class="Constant">6</span>: <span class="Delimiter">{</span> -<span id="L266" class="LineNr">266 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop xor"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L266" class="LineNr">266 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop xor"</span> << end<span class="Delimiter">();</span> <span id="L267" class="LineNr">267 </span> <a href='010---vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> <span id="L268" class="LineNr">268 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L269" class="LineNr">269 </span><span class="Delimiter">}</span> @@ -347,7 +347,7 @@ if ('onhashchange' in window) { <span id="L283" class="LineNr">283 </span><span class="SalientComment">//:: compare (cmp)</span> <span id="L284" class="LineNr">284 </span> <span id="L285" class="LineNr">285 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L286" class="LineNr">286 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"3d"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if R0 < imm32"</span><span class="Delimiter">);</span> +<span id="L286" class="LineNr">286 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"3d"</span><span class="Delimiter">,</span> <span class="Constant">"compare: set SF if R0 < imm32"</span><span class="Delimiter">);</span> <span id="L287" class="LineNr">287 </span> <span id="L288" class="LineNr">288 </span><span class="Delimiter">:(scenario compare_imm32_with_eax_greater)</span> <span id="L289" class="LineNr">289 </span><span class="Special">% Reg[EAX].i = 0x0d0c0b0a;</span> @@ -360,14 +360,14 @@ if ('onhashchange' in window) { <span id="L296" class="LineNr">296 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L297" class="LineNr">297 </span><span class="Normal">case</span> <span class="Constant">0x3d</span>: <span class="Delimiter">{</span> <span class="Comment">// compare EAX with imm32</span> <span id="L298" class="LineNr">298 </span> <span class="Normal">int32_t</span> arg1 = Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> -<span id="L299" class="LineNr">299 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L300" class="LineNr">300 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare <a href='010---vm.cc.html#L13'>EAX</a> and imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L300" class="LineNr">300 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare <a href='010---vm.cc.html#L13'>EAX</a> and imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << end<span class="Delimiter">();</span> <span id="L301" class="LineNr">301 </span> <span class="Normal">int32_t</span> tmp1 = arg1 - arg2<span class="Delimiter">;</span> <span id="L302" class="LineNr">302 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L303" class="LineNr">303 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L304" class="LineNr">304 </span> <span class="Normal">int64_t</span> tmp2 = arg1 - arg2<span class="Delimiter">;</span> <span id="L305" class="LineNr">305 </span> <a href='010---vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> -<span id="L306" class="LineNr">306 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L306" class="LineNr">306 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << end<span class="Delimiter">();</span> <span id="L307" class="LineNr">307 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L308" class="LineNr">308 </span><span class="Delimiter">}</span> <span id="L309" class="LineNr">309 </span> @@ -402,13 +402,13 @@ if ('onhashchange' in window) { <span id="L338" class="LineNr">338 </span> <span id="L339" class="LineNr">339 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> <span id="L340" class="LineNr">340 </span><span class="Normal">case</span> <span class="Constant">7</span>: <span class="Delimiter">{</span> -<span id="L341" class="LineNr">341 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop compare"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L341" class="LineNr">341 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop compare"</span> << end<span class="Delimiter">();</span> <span id="L342" class="LineNr">342 </span> <span class="Normal">int32_t</span> tmp1 = *arg1 - arg2<span class="Delimiter">;</span> <span id="L343" class="LineNr">343 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L344" class="LineNr">344 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> <span id="L345" class="LineNr">345 </span> <span class="Normal">int64_t</span> tmp2 = *arg1 - arg2<span class="Delimiter">;</span> <span id="L346" class="LineNr">346 </span> <a href='010---vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> -<span id="L347" class="LineNr">347 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L347" class="LineNr">347 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010---vm.cc.html#L59'>OF</a> << end<span class="Delimiter">();</span> <span id="L348" class="LineNr">348 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L349" class="LineNr">349 </span><span class="Delimiter">}</span> <span id="L350" class="LineNr">350 </span> @@ -435,56 +435,56 @@ if ('onhashchange' in window) { <span id="L371" class="LineNr">371 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> <span id="L372" class="LineNr">372 </span> <span id="L373" class="LineNr">373 </span><span class="Delimiter">:(scenario compare_imm32_with_mem_at_r32_greater)</span> -<span id="L374" class="LineNr">374 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L374" class="LineNr">374 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L375" class="LineNr">375 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L376" class="LineNr">376 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L377" class="LineNr">377 </span> <span class="Constant">81</span> 3b <span class="PreProc">0</span><span class="Constant">7</span> 0b 0c 0d <span class="Comment"># compare 0x0d0c0b07 with *EBX</span> <span id="L378" class="LineNr">378 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 111 (compare imm32) 011 (dest EBX)</span> -<span id="L379" class="LineNr">379 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L379" class="LineNr">379 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L380" class="LineNr">380 </span>0a 0b 0c 0d <span class="Comment"># 0x0d0c0b0a</span> <span id="L381" class="LineNr">381 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L382" class="LineNr">382 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L382" class="LineNr">382 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L383" class="LineNr">383 </span><span class="traceContains">+run: imm32 is 0x0d0c0b07</span> <span id="L384" class="LineNr">384 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> <span id="L385" class="LineNr">385 </span> <span id="L386" class="LineNr">386 </span><span class="Delimiter">:(scenario compare_imm32_with_mem_at_r32_lesser)</span> -<span id="L387" class="LineNr">387 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L387" class="LineNr">387 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L388" class="LineNr">388 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L389" class="LineNr">389 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L390" class="LineNr">390 </span> <span class="Constant">81</span> 3b 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with *EBX</span> <span id="L391" class="LineNr">391 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 111 (compare imm32) 011 (dest EBX)</span> -<span id="L392" class="LineNr">392 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L392" class="LineNr">392 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L393" class="LineNr">393 </span><span class="PreProc">0</span><span class="Constant">7</span> 0b 0c 0d <span class="Comment"># 0x0d0c0b07</span> <span id="L394" class="LineNr">394 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L395" class="LineNr">395 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L395" class="LineNr">395 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L396" class="LineNr">396 </span><span class="traceContains">+run: imm32 is 0x0d0c0b0a</span> <span id="L397" class="LineNr">397 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> <span id="L398" class="LineNr">398 </span> <span id="L399" class="LineNr">399 </span><span class="Delimiter">:(scenario compare_imm32_with_mem_at_r32_equal)</span> <span id="L400" class="LineNr">400 </span><span class="Special">% Reg[EBX].i = 0x0d0c0b0a;</span> -<span id="L401" class="LineNr">401 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L401" class="LineNr">401 </span><span class="Special">% Reg[EBX].i = 0x2000;</span> <span id="L402" class="LineNr">402 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> <span id="L403" class="LineNr">403 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L404" class="LineNr">404 </span> <span class="Constant">81</span> 3b 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with *EBX</span> <span id="L405" class="LineNr">405 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 111 (compare imm32) 011 (dest EBX)</span> -<span id="L406" class="LineNr">406 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L406" class="LineNr">406 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L407" class="LineNr">407 </span>0a 0b 0c 0d <span class="Comment"># 0x0d0c0b0a</span> <span id="L408" class="LineNr">408 </span><span class="traceContains">+run: combine imm32 with r/m32</span> -<span id="L409" class="LineNr">409 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L409" class="LineNr">409 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L410" class="LineNr">410 </span><span class="traceContains">+run: imm32 is 0x0d0c0b0a</span> <span id="L411" class="LineNr">411 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> <span id="L412" class="LineNr">412 </span> <span id="L413" class="LineNr">413 </span><span class="SalientComment">//:: copy (mov)</span> <span id="L414" class="LineNr">414 </span> <span id="L415" class="LineNr">415 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L416" class="LineNr">416 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"b8"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R0 (EAX)"</span><span class="Delimiter">);</span> -<span id="L417" class="LineNr">417 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"b9"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R1 (ECX)"</span><span class="Delimiter">);</span> -<span id="L418" class="LineNr">418 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"ba"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R2 (EDX)"</span><span class="Delimiter">);</span> -<span id="L419" class="LineNr">419 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"bb"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R3 (EBX)"</span><span class="Delimiter">);</span> -<span id="L420" class="LineNr">420 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"bc"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R4 (ESP)"</span><span class="Delimiter">);</span> -<span id="L421" class="LineNr">421 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"bd"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R5 (EBP)"</span><span class="Delimiter">);</span> -<span id="L422" class="LineNr">422 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"be"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R6 (ESI)"</span><span class="Delimiter">);</span> -<span id="L423" class="LineNr">423 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"bf"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R7 (EDI)"</span><span class="Delimiter">);</span> +<span id="L416" class="LineNr">416 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"b8"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L417" class="LineNr">417 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"b9"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R1 (ECX)"</span><span class="Delimiter">);</span> +<span id="L418" class="LineNr">418 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"ba"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R2 (EDX)"</span><span class="Delimiter">);</span> +<span id="L419" class="LineNr">419 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"bb"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R3 (EBX)"</span><span class="Delimiter">);</span> +<span id="L420" class="LineNr">420 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"bc"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R4 (ESP)"</span><span class="Delimiter">);</span> +<span id="L421" class="LineNr">421 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"bd"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R5 (EBP)"</span><span class="Delimiter">);</span> +<span id="L422" class="LineNr">422 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"be"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R6 (ESI)"</span><span class="Delimiter">);</span> +<span id="L423" class="LineNr">423 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"bf"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to R7 (EDI)"</span><span class="Delimiter">);</span> <span id="L424" class="LineNr">424 </span> <span id="L425" class="LineNr">425 </span><span class="Delimiter">:(scenario copy_imm32_to_r32)</span> <span id="L426" class="LineNr">426 </span>== <span class="Constant">0x1</span> @@ -502,8 +502,8 @@ if ('onhashchange' in window) { <span id="L438" class="LineNr">438 </span><span class="Normal">case</span> <span class="Constant">0xbe</span>: <span id="L439" class="LineNr">439 </span><span class="Normal">case</span> <span class="Constant">0xbf</span>: <span class="Delimiter">{</span> <span class="Comment">// copy imm32 to r32</span> <span id="L440" class="LineNr">440 </span> <span class="Normal">uint8_t</span> reg1 = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L441" class="LineNr">441 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L442" class="LineNr">442 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <span class="Constant">" to "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L441" class="LineNr">441 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L442" class="LineNr">442 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << <span class="Constant">" to "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L443" class="LineNr">443 </span> Reg[reg1]<span class="Delimiter">.</span>i = arg2<span class="Delimiter">;</span> <span id="L444" class="LineNr">444 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L445" class="LineNr">445 </span><span class="Delimiter">}</span> @@ -511,7 +511,7 @@ if ('onhashchange' in window) { <span id="L447" class="LineNr">447 </span><span class="Comment">//:</span> <span id="L448" class="LineNr">448 </span> <span id="L449" class="LineNr">449 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L450" class="LineNr">450 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"c7"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to rm32"</span><span class="Delimiter">);</span> +<span id="L450" class="LineNr">450 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"c7"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to rm32"</span><span class="Delimiter">);</span> <span id="L451" class="LineNr">451 </span> <span id="L452" class="LineNr">452 </span><span class="Delimiter">:(scenario copy_imm32_to_mem_at_r32)</span> <span id="L453" class="LineNr">453 </span><span class="Special">% Reg[EBX].i = 0x60;</span> @@ -525,11 +525,11 @@ if ('onhashchange' in window) { <span id="L461" class="LineNr">461 </span> <span id="L462" class="LineNr">462 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L463" class="LineNr">463 </span><span class="Normal">case</span> <span class="Constant">0xc7</span>: <span class="Delimiter">{</span> <span class="Comment">// copy imm32 to r32</span> -<span id="L464" class="LineNr">464 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L465" class="LineNr">465 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 to r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L464" class="LineNr">464 </span> <span class="Normal">uint8_t</span> modrm = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> +<span id="L465" class="LineNr">465 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 to r/m32"</span> << end<span class="Delimiter">();</span> <span id="L466" class="LineNr">466 </span> <span class="Normal">int32_t</span>* arg1 = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L467" class="LineNr">467 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L468" class="LineNr">468 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"imm32 is 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L467" class="LineNr">467 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L468" class="LineNr">468 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"imm32 is 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << arg2 << end<span class="Delimiter">();</span> <span id="L469" class="LineNr">469 </span> *arg1 = arg2<span class="Delimiter">;</span> <span id="L470" class="LineNr">470 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L471" class="LineNr">471 </span><span class="Delimiter">}</span> @@ -537,25 +537,25 @@ if ('onhashchange' in window) { <span id="L473" class="LineNr">473 </span><span class="SalientComment">//:: push</span> <span id="L474" class="LineNr">474 </span> <span id="L475" class="LineNr">475 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L476" class="LineNr">476 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"68"</span><span class="Delimiter">,</span> <span class="Constant">"push imm32 to stack"</span><span class="Delimiter">);</span> +<span id="L476" class="LineNr">476 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"68"</span><span class="Delimiter">,</span> <span class="Constant">"push imm32 to stack"</span><span class="Delimiter">);</span> <span id="L477" class="LineNr">477 </span> <span id="L478" class="LineNr">478 </span><span class="Delimiter">:(scenario push_imm32)</span> <span id="L479" class="LineNr">479 </span><span class="Special">% Reg[ESP].u = 0x14;</span> <span id="L480" class="LineNr">480 </span>== <span class="Constant">0x1</span> <span id="L481" class="LineNr">481 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L482" class="LineNr">482 </span> <span class="Constant">68</span> af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># push *EAX to stack</span> -<span id="L483" class="LineNr">483 </span><span class="traceContains">+run: <a href='012elf.cc.html#L85'>push</a> imm32 0x000000af</span> +<span id="L483" class="LineNr">483 </span><span class="traceContains">+run: <a href='012elf.cc.html#L89'>push</a> imm32 0x000000af</span> <span id="L484" class="LineNr">484 </span><span class="traceContains">+run: <a href='010---vm.cc.html#L17'>ESP</a> is now 0x00000010</span> <span id="L485" class="LineNr">485 </span><span class="traceContains">+run: <a href='003trace.cc.html#L74'>contents</a> at <a href='010---vm.cc.html#L17'>ESP</a>: 0x000000af</span> <span id="L486" class="LineNr">486 </span> <span id="L487" class="LineNr">487 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L488" class="LineNr">488 </span><span class="Normal">case</span> <span class="Constant">0x68</span>: <span class="Delimiter">{</span> -<span id="L489" class="LineNr">489 </span> <span class="Normal">uint32_t</span> val = <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='011run.cc.html#L315'>next32</a><span class="Delimiter">());</span> -<span id="L490" class="LineNr">490 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << val << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L489" class="LineNr">489 </span> <span class="Normal">uint32_t</span> val = <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='011run.cc.html#L343'>next32</a><span class="Delimiter">());</span> +<span id="L490" class="LineNr">490 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << val << end<span class="Delimiter">();</span> <span id="L491" class="LineNr">491 </span><span class="CommentedCode">//? cerr << "push: " << val << " => " << Reg[ESP].u << '\n';</span> -<span id="L492" class="LineNr">492 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> -<span id="L493" class="LineNr">493 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ESP is now 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L494" class="LineNr">494 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"contents at <a href='010---vm.cc.html#L17'>ESP</a>: 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L492" class="LineNr">492 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> +<span id="L493" class="LineNr">493 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ESP is now 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L494" class="LineNr">494 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"contents at <a href='010---vm.cc.html#L17'>ESP</a>: 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L178'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L495" class="LineNr">495 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L496" class="LineNr">496 </span><span class="Delimiter">}</span> </pre> diff --git a/html/subx/016index_addressing.cc.html b/html/subx/016index_addressing.cc.html index 74d4d91d..f5801589 100644 --- a/html/subx/016index_addressing.cc.html +++ b/html/subx/016index_addressing.cc.html @@ -64,17 +64,17 @@ if ('onhashchange' in window) { <span id="L2" class="LineNr"> 2 </span> <span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_with_sib)</span> <span id="L4" class="LineNr"> 4 </span><span class="Special">% Reg[EBX].i = 0x10;</span> -<span id="L5" class="LineNr"> 5 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L5" class="LineNr"> 5 </span><span class="Special">% Reg[EAX].i = 0x2000;</span> <span id="L6" class="LineNr"> 6 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L8" class="LineNr"> 8 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Constant">20</span> <span class="Comment"># add EBX to *EAX</span> <span id="L9" class="LineNr"> 9 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 100 (dest in SIB)</span> <span id="L10" class="LineNr"> 10 </span><span class="Comment"># SIB in binary: 00 (scale 1) 100 (no index) 000 (base EAX)</span> -<span id="L11" class="LineNr"> 11 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L11" class="LineNr"> 11 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L12" class="LineNr"> 12 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L13" class="LineNr"> 13 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: effective address is initially 0x60 (EAX)</span> -<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: effective address is 0x60</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: effective address is initially 0x2000 (EAX)</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: effective address is 0x2000</span> <span id="L16" class="LineNr"> 16 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L17" class="LineNr"> 17 </span> <span id="L18" class="LineNr"> 18 </span><span class="Delimiter">:(before "End Mod 0 Special-cases(addr)")</span> @@ -83,78 +83,78 @@ if ('onhashchange' in window) { <span id="L21" class="LineNr"> 21 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(code)</span> <span id="L23" class="LineNr"> 23 </span><span class="Normal">uint32_t</span> <a href='016index_addressing.cc.html#L23'>effective_address_from_sib</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> mod<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L24" class="LineNr"> 24 </span> <span class="Normal">uint8_t</span> sib = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">uint8_t</span> sib = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L25" class="LineNr"> 25 </span> <span class="Normal">uint8_t</span> base = sib&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span id="L26" class="LineNr"> 26 </span> <span class="Normal">uint32_t</span> addr = <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>base != <a href='010---vm.cc.html#L18'>EBP</a> || mod != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L28" class="LineNr"> 28 </span> addr = Reg[base]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L29" class="LineNr"> 29 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>base<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>base<span class="Delimiter">)</span> << <span class="Constant">")"</span> << end<span class="Delimiter">();</span> <span id="L30" class="LineNr"> 30 </span> <span class="Delimiter">}</span> <span id="L31" class="LineNr"> 31 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> <span id="L32" class="LineNr"> 32 </span> <span class="Comment">// base == EBP && mod == 0</span> -<span id="L33" class="LineNr"> 33 </span> addr = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> <span class="Comment">// ignore base</span> -<span id="L34" class="LineNr"> 34 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" (disp32)"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L33" class="LineNr"> 33 </span> addr = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> <span class="Comment">// ignore base</span> +<span id="L34" class="LineNr"> 34 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" (disp32)"</span> << end<span class="Delimiter">();</span> <span id="L35" class="LineNr"> 35 </span> <span class="Delimiter">}</span> <span id="L36" class="LineNr"> 36 </span> <span class="Normal">uint8_t</span> index = <span class="Delimiter">(</span>sib>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>index == <a href='010---vm.cc.html#L17'>ESP</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L38" class="LineNr"> 38 </span> <span class="Comment">// ignore index and scale</span> -<span id="L39" class="LineNr"> 39 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L39" class="LineNr"> 39 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << end<span class="Delimiter">();</span> <span id="L40" class="LineNr"> 40 </span> <span class="Delimiter">}</span> <span id="L41" class="LineNr"> 41 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> <span id="L42" class="LineNr"> 42 </span> <span class="Normal">uint8_t</span> scale = <span class="Delimiter">(</span><span class="Constant">1</span> << <span class="Delimiter">(</span>sib>><span class="Constant">6</span><span class="Delimiter">));</span> <span id="L43" class="LineNr"> 43 </span> addr += Reg[index]<span class="Delimiter">.</span>i*scale<span class="Delimiter">;</span> <span class="Comment">// treat index register as signed. Maybe base as well? But we'll always ensure it's non-negative.</span> -<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>index<span class="Delimiter">)</span> << <span class="Constant">"*"</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>scale<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding "</span> << <a href='013direct_addressing.cc.html#L62'>rname</a><span class="Delimiter">(</span>index<span class="Delimiter">)</span> << <span class="Constant">"*"</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>scale<span class="Delimiter">)</span> << <span class="Constant">")"</span> << end<span class="Delimiter">();</span> <span id="L45" class="LineNr"> 45 </span> <span class="Delimiter">}</span> <span id="L46" class="LineNr"> 46 </span> <span class="Identifier">return</span> addr<span class="Delimiter">;</span> <span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span> <span id="L48" class="LineNr"> 48 </span> <span id="L49" class="LineNr"> 49 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_base_r32_index_r32)</span> <span id="L50" class="LineNr"> 50 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L51" class="LineNr"> 51 </span><span class="Special">% Reg[EAX].i = 0x5e; // dest base</span> +<span id="L51" class="LineNr"> 51 </span><span class="Special">% Reg[EAX].i = 0x1ffe; // dest base</span> <span id="L52" class="LineNr"> 52 </span><span class="Special">% Reg[ECX].i = 0x2; // dest index</span> <span id="L53" class="LineNr"> 53 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L54" class="LineNr"> 54 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L55" class="LineNr"> 55 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Error">08</span> <span class="Comment"># add EBX to *(EAX+ECX)</span> <span id="L56" class="LineNr"> 56 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 100 (dest in SIB)</span> <span id="L57" class="LineNr"> 57 </span><span class="Comment"># SIB in binary: 00 (scale 1) 001 (index ECX) 000 (base EAX)</span> -<span id="L58" class="LineNr"> 58 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L58" class="LineNr"> 58 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L59" class="LineNr"> 59 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L60" class="LineNr"> 60 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L61" class="LineNr"> 61 </span><span class="traceContains">+run: effective address is initially 0x5e (EAX)</span> -<span id="L62" class="LineNr"> 62 </span><span class="traceContains">+run: effective address is 0x60 (after adding ECX*1)</span> +<span id="L61" class="LineNr"> 61 </span><span class="traceContains">+run: effective address is initially 0x1ffe (EAX)</span> +<span id="L62" class="LineNr"> 62 </span><span class="traceContains">+run: effective address is 0x2000 (after adding ECX*1)</span> <span id="L63" class="LineNr"> 63 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L64" class="LineNr"> 64 </span> <span id="L65" class="LineNr"> 65 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_displacement_using_sib)</span> <span id="L66" class="LineNr"> 66 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> <span id="L67" class="LineNr"> 67 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L68" class="LineNr"> 68 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L69" class="LineNr"> 69 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Constant">25</span> <span class="Constant">60</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *0x60</span> +<span id="L69" class="LineNr"> 69 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Constant">25</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Constant">20</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *0x2000</span> <span id="L70" class="LineNr"> 70 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 100 (dest in SIB)</span> <span id="L71" class="LineNr"> 71 </span><span class="Comment"># SIB in binary: 00 (scale 1) 100 (no index) 101 (not EBP but disp32)</span> -<span id="L72" class="LineNr"> 72 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L72" class="LineNr"> 72 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L73" class="LineNr"> 73 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L74" class="LineNr"> 74 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L75" class="LineNr"> 75 </span><span class="traceContains">+run: effective address is initially 0x60 (disp32)</span> -<span id="L76" class="LineNr"> 76 </span><span class="traceContains">+run: effective address is 0x60</span> +<span id="L75" class="LineNr"> 75 </span><span class="traceContains">+run: effective address is initially 0x2000 (disp32)</span> +<span id="L76" class="LineNr"> 76 </span><span class="traceContains">+run: effective address is 0x2000</span> <span id="L77" class="LineNr"> 77 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L78" class="LineNr"> 78 </span> <span id="L79" class="LineNr"> 79 </span><span class="Comment">//:</span> <span id="L80" class="LineNr"> 80 </span> <span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_base_r32_index_r32_plus_disp8)</span> <span id="L82" class="LineNr"> 82 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L83" class="LineNr"> 83 </span><span class="Special">% Reg[EAX].i = 0x59; // dest base</span> +<span id="L83" class="LineNr"> 83 </span><span class="Special">% Reg[EAX].i = 0x1ff9; // dest base</span> <span id="L84" class="LineNr"> 84 </span><span class="Special">% Reg[ECX].i = 0x5; // dest index</span> <span id="L85" class="LineNr"> 85 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L86" class="LineNr"> 86 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L87" class="LineNr"> 87 </span> <span class="PreProc">0</span><span class="Constant">1</span> 5c <span class="Error">08</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="Comment"># add EBX to *(EAX+ECX+2)</span> <span id="L88" class="LineNr"> 88 </span><span class="Comment"># ModR/M in binary: 01 (indirect+disp8 mode) 011 (src EBX) 100 (dest in SIB)</span> <span id="L89" class="LineNr"> 89 </span><span class="Comment"># SIB in binary: 00 (scale 1) 001 (index ECX) 000 (base EAX)</span> -<span id="L90" class="LineNr"> 90 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L90" class="LineNr"> 90 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L91" class="LineNr"> 91 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L92" class="LineNr"> 92 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L93" class="LineNr"> 93 </span><span class="traceContains">+run: effective address is initially 0x59 (EAX)</span> -<span id="L94" class="LineNr"> 94 </span><span class="traceContains">+run: effective address is 0x5e (after adding ECX*1)</span> -<span id="L95" class="LineNr"> 95 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp8)</span> +<span id="L93" class="LineNr"> 93 </span><span class="traceContains">+run: effective address is initially 0x1ff9 (EAX)</span> +<span id="L94" class="LineNr"> 94 </span><span class="traceContains">+run: effective address is 0x1ffe (after adding ECX*1)</span> +<span id="L95" class="LineNr"> 95 </span><span class="traceContains">+run: effective address is 0x2000 (after adding disp8)</span> <span id="L96" class="LineNr"> 96 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L97" class="LineNr"> 97 </span> <span id="L98" class="LineNr"> 98 </span><span class="Delimiter">:(before "End Mod 1 Special-cases(addr)")</span> @@ -166,19 +166,19 @@ if ('onhashchange' in window) { <span id="L104" class="LineNr">104 </span> <span id="L105" class="LineNr">105 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_base_r32_index_r32_plus_disp32)</span> <span id="L106" class="LineNr">106 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> -<span id="L107" class="LineNr">107 </span><span class="Special">% Reg[EAX].i = 0x59; // dest base</span> +<span id="L107" class="LineNr">107 </span><span class="Special">% Reg[EAX].i = 0x1ff9; // dest base</span> <span id="L108" class="LineNr">108 </span><span class="Special">% Reg[ECX].i = 0x5; // dest index</span> <span id="L109" class="LineNr">109 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L110" class="LineNr">110 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L111" class="LineNr">111 </span> <span class="PreProc">0</span><span class="Constant">1</span> 9c <span class="Error">08</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *(EAX+ECX+2)</span> <span id="L112" class="LineNr">112 </span><span class="Comment"># ModR/M in binary: 10 (indirect+disp32 mode) 011 (src EBX) 100 (dest in SIB)</span> <span id="L113" class="LineNr">113 </span><span class="Comment"># SIB in binary: 00 (scale 1) 001 (index ECX) 000 (base EAX)</span> -<span id="L114" class="LineNr">114 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L114" class="LineNr">114 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L115" class="LineNr">115 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> <span id="L116" class="LineNr">116 </span><span class="traceContains">+run: add <a href='010---vm.cc.html#L16'>EBX</a> to r/m32</span> -<span id="L117" class="LineNr">117 </span><span class="traceContains">+run: effective address is initially 0x59 (EAX)</span> -<span id="L118" class="LineNr">118 </span><span class="traceContains">+run: effective address is 0x5e (after adding ECX*1)</span> -<span id="L119" class="LineNr">119 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp32)</span> +<span id="L117" class="LineNr">117 </span><span class="traceContains">+run: effective address is initially 0x1ff9 (EAX)</span> +<span id="L118" class="LineNr">118 </span><span class="traceContains">+run: effective address is 0x1ffe (after adding ECX*1)</span> +<span id="L119" class="LineNr">119 </span><span class="traceContains">+run: effective address is 0x2000 (after adding disp32)</span> <span id="L120" class="LineNr">120 </span><span class="traceContains">+run: storing 0x00000011</span> <span id="L121" class="LineNr">121 </span> <span id="L122" class="LineNr">122 </span><span class="Delimiter">:(before "End Mod 2 Special-cases(addr)")</span> diff --git a/html/subx/017jump_disp8.cc.html b/html/subx/017jump_disp8.cc.html index bc581bd6..a29779b1 100644 --- a/html/subx/017jump_disp8.cc.html +++ b/html/subx/017jump_disp8.cc.html @@ -66,7 +66,7 @@ if ('onhashchange' in window) { <span id="L3" class="LineNr"> 3 </span><span class="SalientComment">//:: jump</span> <span id="L4" class="LineNr"> 4 </span> <span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L6" class="LineNr"> 6 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"eb"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away"</span><span class="Delimiter">);</span> +<span id="L6" class="LineNr"> 6 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"eb"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away"</span><span class="Delimiter">);</span> <span id="L7" class="LineNr"> 7 </span> <span id="L8" class="LineNr"> 8 </span><span class="Delimiter">:(scenario jump_rel8)</span> <span id="L9" class="LineNr"> 9 </span>== <span class="Constant">0x1</span> @@ -81,8 +81,8 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr"> 18 </span> <span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L20" class="LineNr"> 20 </span><span class="Normal">case</span> <span class="Constant">0xeb</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8</span> -<span id="L21" class="LineNr"> 21 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> -<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> +<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L23" class="LineNr"> 23 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L24" class="LineNr"> 24 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L25" class="LineNr"> 25 </span><span class="Delimiter">}</span> @@ -90,7 +90,7 @@ if ('onhashchange' in window) { <span id="L27" class="LineNr"> 27 </span><span class="SalientComment">//:: jump if equal/zero</span> <span id="L28" class="LineNr"> 28 </span> <span id="L29" class="LineNr"> 29 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L30" class="LineNr"> 30 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"74"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if ZF is set"</span><span class="Delimiter">);</span> +<span id="L30" class="LineNr"> 30 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"74"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if ZF is set"</span><span class="Delimiter">);</span> <span id="L31" class="LineNr"> 31 </span> <span id="L32" class="LineNr"> 32 </span><span class="Delimiter">:(scenario je_rel8_success)</span> <span id="L33" class="LineNr"> 33 </span><span class="Special">% ZF = true;</span> @@ -106,9 +106,9 @@ if ('onhashchange' in window) { <span id="L43" class="LineNr"> 43 </span> <span id="L44" class="LineNr"> 44 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L45" class="LineNr"> 45 </span><span class="Normal">case</span> <span class="Constant">0x74</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if ZF</span> -<span id="L46" class="LineNr"> 46 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> <span id="L47" class="LineNr"> 47 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L48" class="LineNr"> 48 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L48" class="LineNr"> 48 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L49" class="LineNr"> 49 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L50" class="LineNr"> 50 </span> <span class="Delimiter">}</span> <span id="L51" class="LineNr"> 51 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -129,7 +129,7 @@ if ('onhashchange' in window) { <span id="L66" class="LineNr"> 66 </span><span class="SalientComment">//:: jump if not equal/not zero</span> <span id="L67" class="LineNr"> 67 </span> <span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L69" class="LineNr"> 69 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"75"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if ZF is not set"</span><span class="Delimiter">);</span> +<span id="L69" class="LineNr"> 69 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"75"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if ZF is not set"</span><span class="Delimiter">);</span> <span id="L70" class="LineNr"> 70 </span> <span id="L71" class="LineNr"> 71 </span><span class="Delimiter">:(scenario jne_rel8_success)</span> <span id="L72" class="LineNr"> 72 </span><span class="Special">% ZF = false;</span> @@ -145,9 +145,9 @@ if ('onhashchange' in window) { <span id="L82" class="LineNr"> 82 </span> <span id="L83" class="LineNr"> 83 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L84" class="LineNr"> 84 </span><span class="Normal">case</span> <span class="Constant">0x75</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 unless ZF</span> -<span id="L85" class="LineNr"> 85 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> <span id="L86" class="LineNr"> 86 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L87" class="LineNr"> 87 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L87" class="LineNr"> 87 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L88" class="LineNr"> 88 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">}</span> <span id="L90" class="LineNr"> 90 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -168,7 +168,7 @@ if ('onhashchange' in window) { <span id="L105" class="LineNr">105 </span><span class="SalientComment">//:: jump if greater</span> <span id="L106" class="LineNr">106 </span> <span id="L107" class="LineNr">107 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L108" class="LineNr">108 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"7f"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if greater (ZF is unset, SF == OF)"</span><span class="Delimiter">);</span> +<span id="L108" class="LineNr">108 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"7f"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if greater (ZF is unset, SF == OF)"</span><span class="Delimiter">);</span> <span id="L109" class="LineNr">109 </span> <span id="L110" class="LineNr">110 </span><span class="Delimiter">:(scenario jg_rel8_success)</span> <span id="L111" class="LineNr">111 </span><span class="Special">% ZF = false;</span> @@ -186,9 +186,9 @@ if ('onhashchange' in window) { <span id="L123" class="LineNr">123 </span> <span id="L124" class="LineNr">124 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L125" class="LineNr">125 </span><span class="Normal">case</span> <span class="Constant">0x7f</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if !SF and !ZF</span> -<span id="L126" class="LineNr">126 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> +<span id="L126" class="LineNr">126 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> <span id="L127" class="LineNr">127 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF && SF == <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L128" class="LineNr">128 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L128" class="LineNr">128 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L129" class="LineNr">129 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L130" class="LineNr">130 </span> <span class="Delimiter">}</span> <span id="L131" class="LineNr">131 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -211,7 +211,7 @@ if ('onhashchange' in window) { <span id="L148" class="LineNr">148 </span><span class="SalientComment">//:: jump if greater or equal</span> <span id="L149" class="LineNr">149 </span> <span id="L150" class="LineNr">150 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L151" class="LineNr">151 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"7d"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if greater or equal (SF == OF)"</span><span class="Delimiter">);</span> +<span id="L151" class="LineNr">151 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"7d"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if greater or equal (SF == OF)"</span><span class="Delimiter">);</span> <span id="L152" class="LineNr">152 </span> <span id="L153" class="LineNr">153 </span><span class="Delimiter">:(scenario jge_rel8_success)</span> <span id="L154" class="LineNr">154 </span><span class="Special">% SF = false;</span> @@ -228,9 +228,9 @@ if ('onhashchange' in window) { <span id="L165" class="LineNr">165 </span> <span id="L166" class="LineNr">166 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L167" class="LineNr">167 </span><span class="Normal">case</span> <span class="Constant">0x7d</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if !SF</span> -<span id="L168" class="LineNr">168 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> +<span id="L168" class="LineNr">168 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> <span id="L169" class="LineNr">169 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF == <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L170" class="LineNr">170 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L170" class="LineNr">170 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L171" class="LineNr">171 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L172" class="LineNr">172 </span> <span class="Delimiter">}</span> <span id="L173" class="LineNr">173 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -252,7 +252,7 @@ if ('onhashchange' in window) { <span id="L189" class="LineNr">189 </span><span class="SalientComment">//:: jump if lesser</span> <span id="L190" class="LineNr">190 </span> <span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L192" class="LineNr">192 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"7c"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if lesser (SF != OF)"</span><span class="Delimiter">);</span> +<span id="L192" class="LineNr">192 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"7c"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if lesser (SF != OF)"</span><span class="Delimiter">);</span> <span id="L193" class="LineNr">193 </span> <span id="L194" class="LineNr">194 </span><span class="Delimiter">:(scenario jl_rel8_success)</span> <span id="L195" class="LineNr">195 </span><span class="Special">% ZF = false;</span> @@ -270,9 +270,9 @@ if ('onhashchange' in window) { <span id="L207" class="LineNr">207 </span> <span id="L208" class="LineNr">208 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L209" class="LineNr">209 </span><span class="Normal">case</span> <span class="Constant">0x7c</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if SF and !ZF</span> -<span id="L210" class="LineNr">210 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> +<span id="L210" class="LineNr">210 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> <span id="L211" class="LineNr">211 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF != <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L212" class="LineNr">212 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L212" class="LineNr">212 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L213" class="LineNr">213 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L214" class="LineNr">214 </span> <span class="Delimiter">}</span> <span id="L215" class="LineNr">215 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -295,7 +295,7 @@ if ('onhashchange' in window) { <span id="L232" class="LineNr">232 </span><span class="SalientComment">//:: jump if lesser or equal</span> <span id="L233" class="LineNr">233 </span> <span id="L234" class="LineNr">234 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L235" class="LineNr">235 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"7e"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if lesser or equal (ZF is set or SF != OF)"</span><span class="Delimiter">);</span> +<span id="L235" class="LineNr">235 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"7e"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if lesser or equal (ZF is set or SF != OF)"</span><span class="Delimiter">);</span> <span id="L236" class="LineNr">236 </span> <span id="L237" class="LineNr">237 </span><span class="Delimiter">:(scenario jle_rel8_equal)</span> <span id="L238" class="LineNr">238 </span><span class="Special">% ZF = true;</span> @@ -327,9 +327,9 @@ if ('onhashchange' in window) { <span id="L264" class="LineNr">264 </span> <span id="L265" class="LineNr">265 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L266" class="LineNr">266 </span><span class="Normal">case</span> <span class="Constant">0x7e</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if SF or ZF</span> -<span id="L267" class="LineNr">267 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">());</span> +<span id="L267" class="LineNr">267 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">());</span> <span id="L268" class="LineNr">268 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF || SF != <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L269" class="LineNr">269 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L269" class="LineNr">269 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L270" class="LineNr">270 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L271" class="LineNr">271 </span> <span class="Delimiter">}</span> <span id="L272" class="LineNr">272 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> diff --git a/html/subx/018jump_disp16.cc.html b/html/subx/018jump_disp16.cc.html index 2cbbac02..050d71eb 100644 --- a/html/subx/018jump_disp16.cc.html +++ b/html/subx/018jump_disp16.cc.html @@ -66,7 +66,7 @@ if ('onhashchange' in window) { <span id="L3" class="LineNr"> 3 </span><span class="SalientComment">//:: jump</span> <span id="L4" class="LineNr"> 4 </span> <span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L6" class="LineNr"> 6 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"e9"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away"</span><span class="Delimiter">);</span> +<span id="L6" class="LineNr"> 6 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"e9"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away"</span><span class="Delimiter">);</span> <span id="L7" class="LineNr"> 7 </span> <span id="L8" class="LineNr"> 8 </span><span class="Delimiter">:(scenario jump_rel16)</span> <span id="L9" class="LineNr"> 9 </span>== <span class="Constant">0x1</span> @@ -82,21 +82,21 @@ if ('onhashchange' in window) { <span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L20" class="LineNr"> 20 </span><span class="Normal">case</span> <span class="Constant">0xe9</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8</span> <span id="L21" class="LineNr"> 21 </span> <span class="Normal">int16_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> -<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << offset << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << offset << end<span class="Delimiter">();</span> <span id="L23" class="LineNr"> 23 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L24" class="LineNr"> 24 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L25" class="LineNr"> 25 </span><span class="Delimiter">}</span> <span id="L26" class="LineNr"> 26 </span><span class="Delimiter">:(code)</span> <span id="L27" class="LineNr"> 27 </span><span class="Normal">int16_t</span> <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Normal">int16_t</span> result = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L29" class="LineNr"> 29 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">int16_t</span> result = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span> result |= <span class="Delimiter">(</span><a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> <span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span> <span id="L32" class="LineNr"> 32 </span> <span id="L33" class="LineNr"> 33 </span><span class="SalientComment">//:: jump if equal/zero</span> <span id="L34" class="LineNr"> 34 </span> <span id="L35" class="LineNr"> 35 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L36" class="LineNr"> 36 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"84"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if ZF is set"</span><span class="Delimiter">);</span> +<span id="L36" class="LineNr"> 36 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"84"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if ZF is set"</span><span class="Delimiter">);</span> <span id="L37" class="LineNr"> 37 </span> <span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(scenario je_rel16_success)</span> <span id="L39" class="LineNr"> 39 </span><span class="Special">% ZF = true;</span> @@ -114,7 +114,7 @@ if ('onhashchange' in window) { <span id="L51" class="LineNr"> 51 </span><span class="Normal">case</span> <span class="Constant">0x84</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if ZF</span> <span id="L52" class="LineNr"> 52 </span> <span class="Normal">int8_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> <span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L55" class="LineNr"> 55 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span> <span id="L57" class="LineNr"> 57 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -135,7 +135,7 @@ if ('onhashchange' in window) { <span id="L72" class="LineNr"> 72 </span><span class="SalientComment">//:: jump if not equal/not zero</span> <span id="L73" class="LineNr"> 73 </span> <span id="L74" class="LineNr"> 74 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L75" class="LineNr"> 75 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"85"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if ZF is not set"</span><span class="Delimiter">);</span> +<span id="L75" class="LineNr"> 75 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"85"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if ZF is not set"</span><span class="Delimiter">);</span> <span id="L76" class="LineNr"> 76 </span> <span id="L77" class="LineNr"> 77 </span><span class="Delimiter">:(scenario jne_rel16_success)</span> <span id="L78" class="LineNr"> 78 </span><span class="Special">% ZF = false;</span> @@ -153,7 +153,7 @@ if ('onhashchange' in window) { <span id="L90" class="LineNr"> 90 </span><span class="Normal">case</span> <span class="Constant">0x85</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 unless ZF</span> <span id="L91" class="LineNr"> 91 </span> <span class="Normal">int8_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> <span id="L92" class="LineNr"> 92 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L94" class="LineNr"> 94 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L95" class="LineNr"> 95 </span> <span class="Delimiter">}</span> <span id="L96" class="LineNr"> 96 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -174,7 +174,7 @@ if ('onhashchange' in window) { <span id="L111" class="LineNr">111 </span><span class="SalientComment">//:: jump if greater</span> <span id="L112" class="LineNr">112 </span> <span id="L113" class="LineNr">113 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L114" class="LineNr">114 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if greater (ZF is unset, SF == OF)"</span><span class="Delimiter">);</span> +<span id="L114" class="LineNr">114 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if greater (ZF is unset, SF == OF)"</span><span class="Delimiter">);</span> <span id="L115" class="LineNr">115 </span> <span id="L116" class="LineNr">116 </span><span class="Delimiter">:(scenario jg_rel16_success)</span> <span id="L117" class="LineNr">117 </span><span class="Special">% ZF = false;</span> @@ -194,7 +194,7 @@ if ('onhashchange' in window) { <span id="L131" class="LineNr">131 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if !SF and !ZF</span> <span id="L132" class="LineNr">132 </span> <span class="Normal">int8_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> <span id="L133" class="LineNr">133 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF && SF == <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L134" class="LineNr">134 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L134" class="LineNr">134 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L135" class="LineNr">135 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span> <span id="L137" class="LineNr">137 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -217,7 +217,7 @@ if ('onhashchange' in window) { <span id="L154" class="LineNr">154 </span><span class="SalientComment">//:: jump if greater or equal</span> <span id="L155" class="LineNr">155 </span> <span id="L156" class="LineNr">156 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L157" class="LineNr">157 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if greater or equal (SF == OF)"</span><span class="Delimiter">);</span> +<span id="L157" class="LineNr">157 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if greater or equal (SF == OF)"</span><span class="Delimiter">);</span> <span id="L158" class="LineNr">158 </span> <span id="L159" class="LineNr">159 </span><span class="Delimiter">:(scenario jge_rel16_success)</span> <span id="L160" class="LineNr">160 </span><span class="Special">% SF = false;</span> @@ -236,7 +236,7 @@ if ('onhashchange' in window) { <span id="L173" class="LineNr">173 </span><span class="Normal">case</span> <span class="Constant">0x8d</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if !SF</span> <span id="L174" class="LineNr">174 </span> <span class="Normal">int8_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> <span id="L175" class="LineNr">175 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF == <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L176" class="LineNr">176 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L176" class="LineNr">176 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L177" class="LineNr">177 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L178" class="LineNr">178 </span> <span class="Delimiter">}</span> <span id="L179" class="LineNr">179 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -258,7 +258,7 @@ if ('onhashchange' in window) { <span id="L195" class="LineNr">195 </span><span class="SalientComment">//:: jump if lesser</span> <span id="L196" class="LineNr">196 </span> <span id="L197" class="LineNr">197 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8c"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if lesser (SF != OF)"</span><span class="Delimiter">);</span> +<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8c"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if lesser (SF != OF)"</span><span class="Delimiter">);</span> <span id="L199" class="LineNr">199 </span> <span id="L200" class="LineNr">200 </span><span class="Delimiter">:(scenario jl_rel16_success)</span> <span id="L201" class="LineNr">201 </span><span class="Special">% ZF = false;</span> @@ -278,7 +278,7 @@ if ('onhashchange' in window) { <span id="L215" class="LineNr">215 </span><span class="Normal">case</span> <span class="Constant">0x8c</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if SF and !ZF</span> <span id="L216" class="LineNr">216 </span> <span class="Normal">int8_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> <span id="L217" class="LineNr">217 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF != <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L218" class="LineNr">218 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L218" class="LineNr">218 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L219" class="LineNr">219 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L220" class="LineNr">220 </span> <span class="Delimiter">}</span> <span id="L221" class="LineNr">221 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> @@ -301,7 +301,7 @@ if ('onhashchange' in window) { <span id="L238" class="LineNr">238 </span><span class="SalientComment">//:: jump if lesser or equal</span> <span id="L239" class="LineNr">239 </span> <span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L241" class="LineNr">241 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8e"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if lesser or equal (ZF is set or SF != OF)"</span><span class="Delimiter">);</span> +<span id="L241" class="LineNr">241 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8e"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if lesser or equal (ZF is set or SF != OF)"</span><span class="Delimiter">);</span> <span id="L242" class="LineNr">242 </span> <span id="L243" class="LineNr">243 </span><span class="Delimiter">:(scenario jle_rel16_equal)</span> <span id="L244" class="LineNr">244 </span><span class="Special">% ZF = true;</span> @@ -335,7 +335,7 @@ if ('onhashchange' in window) { <span id="L272" class="LineNr">272 </span><span class="Normal">case</span> <span class="Constant">0x8e</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if SF or ZF</span> <span id="L273" class="LineNr">273 </span> <span class="Normal">int8_t</span> offset = <a href='018jump_disp16.cc.html#L27'>imm16</a><span class="Delimiter">();</span> <span id="L274" class="LineNr">274 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF || SF != <a href='010---vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L275" class="LineNr">275 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L275" class="LineNr">275 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> <span id="L276" class="LineNr">276 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> <span id="L277" class="LineNr">277 </span> <span class="Delimiter">}</span> <span id="L278" class="LineNr">278 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> diff --git a/html/subx/019functions.cc.html b/html/subx/019functions.cc.html index c62d79bd..5af61806 100644 --- a/html/subx/019functions.cc.html +++ b/html/subx/019functions.cc.html @@ -64,7 +64,7 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">//:: call</span> <span id="L2" class="LineNr"> 2 </span> <span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"e8"</span><span class="Delimiter">,</span> <span class="Constant">"call disp32"</span><span class="Delimiter">);</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"e8"</span><span class="Delimiter">,</span> <span class="Constant">"call disp32"</span><span class="Delimiter">);</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario call_disp32)</span> <span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[ESP].u = 0x64;</span> @@ -79,12 +79,12 @@ if ('onhashchange' in window) { <span id="L16" class="LineNr">16 </span> <span id="L17" class="LineNr">17 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L18" class="LineNr">18 </span><span class="Normal">case</span> <span class="Constant">0xe8</span>: <span class="Delimiter">{</span> <span class="Comment">// call disp32 relative to next EIP</span> -<span id="L19" class="LineNr">19 </span> <span class="Normal">int32_t</span> offset = <a href='011run.cc.html#L315'>next32</a><span class="Delimiter">();</span> -<span id="L20" class="LineNr">20 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call imm32 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << offset << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L19" class="LineNr">19 </span> <span class="Normal">int32_t</span> offset = <a href='011run.cc.html#L343'>next32</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr">20 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call imm32 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << offset << end<span class="Delimiter">();</span> <span id="L21" class="LineNr">21 </span><span class="CommentedCode">//? cerr << "push: EIP: " << EIP << " => " << Reg[ESP].u << '\n';</span> -<span id="L22" class="LineNr">22 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a><span class="Delimiter">);</span> +<span id="L22" class="LineNr">22 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a><span class="Delimiter">);</span> <span id="L23" class="LineNr">23 </span> <a href='010---vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L24" class="LineNr">24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L24" class="LineNr">24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << end<span class="Delimiter">();</span> <span id="L25" class="LineNr">25 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L26" class="LineNr">26 </span><span class="Delimiter">}</span> <span id="L27" class="LineNr">27 </span> @@ -105,25 +105,25 @@ if ('onhashchange' in window) { <span id="L42" class="LineNr">42 </span> <span id="L43" class="LineNr">43 </span><span class="Delimiter">:(before "End Op ff Subops")</span> <span id="L44" class="LineNr">44 </span><span class="Normal">case</span> <span class="Constant">2</span>: <span class="Delimiter">{</span> <span class="Comment">// call function pointer at r/m32</span> -<span id="L45" class="LineNr">45 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call to r/m32"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L45" class="LineNr">45 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call to r/m32"</span> << end<span class="Delimiter">();</span> <span id="L46" class="LineNr">46 </span> <span class="Normal">int32_t</span>* offset = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L47" class="LineNr">47 </span> <a href='012elf.cc.html#L85'>push</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a><span class="Delimiter">);</span> +<span id="L47" class="LineNr">47 </span> <a href='012elf.cc.html#L89'>push</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L29'>EIP</a><span class="Delimiter">);</span> <span id="L48" class="LineNr">48 </span> <a href='010---vm.cc.html#L29'>EIP</a> += *offset<span class="Delimiter">;</span> -<span id="L49" class="LineNr">49 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L49" class="LineNr">49 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << end<span class="Delimiter">();</span> <span id="L50" class="LineNr">50 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L51" class="LineNr">51 </span><span class="Delimiter">}</span> <span id="L52" class="LineNr">52 </span> <span id="L53" class="LineNr">53 </span><span class="Delimiter">:(scenario call_mem_at_r32)</span> <span id="L54" class="LineNr">54 </span><span class="Special">% Reg[ESP].u = 0x64;</span> -<span id="L55" class="LineNr">55 </span><span class="Special">% Reg[EBX].u = 0x10;</span> +<span id="L55" class="LineNr">55 </span><span class="Special">% Reg[EBX].u = 0x2000;</span> <span id="L56" class="LineNr">56 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L57" class="LineNr">57 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L58" class="LineNr">58 </span> ff <span class="Constant">13</span> <span class="Comment"># call function offset at *EBX</span> <span id="L59" class="LineNr">59 </span> <span class="Comment"># next EIP is 3</span> -<span id="L60" class="LineNr">60 </span>== <span class="Constant">0x10</span> <span class="Comment"># data segment</span> +<span id="L60" class="LineNr">60 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L61" class="LineNr">61 </span>a0 <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xa0</span> <span id="L62" class="LineNr">62 </span><span class="traceContains">+run: call to r/m32</span> -<span id="L63" class="LineNr">63 </span><span class="traceContains">+run: effective address is 0x10 (EBX)</span> +<span id="L63" class="LineNr">63 </span><span class="traceContains">+run: effective address is 0x2000 (EBX)</span> <span id="L64" class="LineNr">64 </span><span class="traceContains">+run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060</span> <span id="L65" class="LineNr">65 </span><span class="traceContains">+run: pushing value 0x00000003</span> <span id="L66" class="LineNr">66 </span><span class="traceContains">+run: jumping to 0x000000a3</span> @@ -131,14 +131,14 @@ if ('onhashchange' in window) { <span id="L68" class="LineNr">68 </span><span class="SalientComment">//:: ret</span> <span id="L69" class="LineNr">69 </span> <span id="L70" class="LineNr">70 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L71" class="LineNr">71 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"c3"</span><span class="Delimiter">,</span> <span class="Constant">"return from most recent unfinished call"</span><span class="Delimiter">);</span> +<span id="L71" class="LineNr">71 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"c3"</span><span class="Delimiter">,</span> <span class="Constant">"return from most recent unfinished call"</span><span class="Delimiter">);</span> <span id="L72" class="LineNr">72 </span> <span id="L73" class="LineNr">73 </span><span class="Delimiter">:(scenario ret)</span> -<span id="L74" class="LineNr">74 </span><span class="Special">% Reg[ESP].u = 0x60;</span> +<span id="L74" class="LineNr">74 </span><span class="Special">% Reg[ESP].u = 0x2000;</span> <span id="L75" class="LineNr">75 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> <span id="L76" class="LineNr">76 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> <span id="L77" class="LineNr">77 </span> c3 -<span id="L78" class="LineNr">78 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L78" class="LineNr">78 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> <span id="L79" class="LineNr">79 </span><span class="Constant">10</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x10</span> <span id="L80" class="LineNr">80 </span><span class="traceContains">+run: return</span> <span id="L81" class="LineNr">81 </span><span class="traceContains">+run: popping value 0x00000010</span> @@ -146,9 +146,9 @@ if ('onhashchange' in window) { <span id="L83" class="LineNr">83 </span> <span id="L84" class="LineNr">84 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L85" class="LineNr">85 </span><span class="Normal">case</span> <span class="Constant">0xc3</span>: <span class="Delimiter">{</span> <span class="Comment">// return from a call</span> -<span id="L86" class="LineNr">86 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"return"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L87" class="LineNr">87 </span> <a href='010---vm.cc.html#L29'>EIP</a> = <a href='013direct_addressing.cc.html#L585'>pop</a><span class="Delimiter">();</span> -<span id="L88" class="LineNr">88 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L86" class="LineNr">86 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"return"</span> << end<span class="Delimiter">();</span> +<span id="L87" class="LineNr">87 </span> <a href='010---vm.cc.html#L29'>EIP</a> = <a href='013direct_addressing.cc.html#L586'>pop</a><span class="Delimiter">();</span> +<span id="L88" class="LineNr">88 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << end<span class="Delimiter">();</span> <span id="L89" class="LineNr">89 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L90" class="LineNr">90 </span><span class="Delimiter">}</span> </pre> diff --git a/html/subx/020syscalls.cc.html b/html/subx/020syscalls.cc.html index 79ba35b2..33249163 100644 --- a/html/subx/020syscalls.cc.html +++ b/html/subx/020syscalls.cc.html @@ -59,15 +59,15 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> -<span id="L2" class="LineNr"> 2 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Constant">"cd"</span><span class="Delimiter">,</span> <span class="Constant">"software interrupt"</span><span class="Delimiter">);</span> +<span id="L2" class="LineNr"> 2 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Constant">"cd"</span><span class="Delimiter">,</span> <span class="Constant">"software interrupt"</span><span class="Delimiter">);</span> <span id="L3" class="LineNr"> 3 </span> <span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> <span id="L5" class="LineNr"> 5 </span><span class="Normal">case</span> <span class="Constant">0xcd</span>: <span class="Delimiter">{</span> <span class="Comment">// int imm8 (software interrupt)</span> -<span id="L6" class="LineNr"> 6 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"syscall"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L7" class="LineNr"> 7 </span> <span class="Normal">uint8_t</span> <a href='031check_operands.cc.html#L14'>code</a> = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L6" class="LineNr"> 6 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"syscall"</span> << end<span class="Delimiter">();</span> +<span id="L7" class="LineNr"> 7 </span> <span class="Normal">uint8_t</span> <a href='031check_operands.cc.html#L14'>code</a> = <a href='010---vm.cc.html#L322'>next</a><span class="Delimiter">();</span> <span id="L8" class="LineNr"> 8 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a> != <span class="Constant">0x80</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Unimplemented interrupt <a href='031check_operands.cc.html#L14'>code</a> "</span> << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='031check_operands.cc.html#L14'>code</a> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L10" class="LineNr"> 10 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">" Only `int 80h` supported for now.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"Unimplemented interrupt <a href='031check_operands.cc.html#L14'>code</a> "</span> << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='031check_operands.cc.html#L14'>code</a> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L10" class="LineNr"> 10 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">" Only `int 80h` supported for now.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L11" class="LineNr"> 11 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L12" class="LineNr"> 12 </span> <span class="Delimiter">}</span> <span id="L13" class="LineNr"> 13 </span> <a href='020syscalls.cc.html#L18'>process_int80</a><span class="Delimiter">();</span> @@ -81,100 +81,105 @@ if ('onhashchange' in window) { <span id="L21" class="LineNr"> 21 </span> exit<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">exit <a href='031check_operands.cc.html#L14'>code</a></span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> <span id="L22" class="LineNr"> 22 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L23" class="LineNr"> 23 </span> <span class="Normal">case</span> <span class="Constant">3</span>: -<span id="L24" class="LineNr"> 24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"read: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[EDX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L25" class="LineNr"> 25 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L26" class="LineNr"> 26 </span> Reg[EAX]<span class="Delimiter">.</span>i = read<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span><a href='010---vm.cc.html#L117'>mem_addr_u8</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span>Reg[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> -<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L24" class="LineNr"> 24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"read: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[EDX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L25" class="LineNr"> 25 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L26" class="LineNr"> 26 </span> Reg[EAX]<span class="Delimiter">.</span>i = read<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span><a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span>Reg[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L29" class="LineNr"> 29 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L30" class="LineNr"> 30 </span> <span class="Normal">case</span> <span class="Constant">4</span>: -<span id="L31" class="LineNr"> 31 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"write: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[EDX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L33" class="LineNr"> 33 </span> Reg[EAX]<span class="Delimiter">.</span>i = write<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span><a href='010---vm.cc.html#L117'>mem_addr_u8</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span>Reg[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> -<span id="L34" class="LineNr"> 34 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L31" class="LineNr"> 31 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"write: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[EDX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L33" class="LineNr"> 33 </span> Reg[EAX]<span class="Delimiter">.</span>i = write<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span><a href='010---vm.cc.html#L186'>mem_addr_u8</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span>Reg[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L34" class="LineNr"> 34 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L36" class="LineNr"> 36 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L37" class="LineNr"> 37 </span> <span class="Normal">case</span> <span class="Constant">5</span>: <span class="Delimiter">{</span> -<span id="L38" class="LineNr"> 38 </span> <a href='020syscalls.cc.html#L87'>check_flags</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L14'>ECX</a><span class="Delimiter">);</span> -<span id="L39" class="LineNr"> 39 </span> <a href='020syscalls.cc.html#L99'>check_mode</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L15'>EDX</a><span class="Delimiter">);</span> -<span id="L40" class="LineNr"> 40 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"open: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[ECX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L41" class="LineNr"> 41 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L42" class="LineNr"> 42 </span> Reg[EAX]<span class="Delimiter">.</span>i = open<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">flags</span><span class="Comment">*/</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span> -<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L38" class="LineNr"> 38 </span> <a href='020syscalls.cc.html#L94'>check_flags</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L14'>ECX</a><span class="Delimiter">);</span> +<span id="L39" class="LineNr"> 39 </span> <a href='020syscalls.cc.html#L106'>check_mode</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L15'>EDX</a><span class="Delimiter">);</span> +<span id="L40" class="LineNr"> 40 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"open: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">' '</span> << Reg[ECX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L41" class="LineNr"> 41 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L42" class="LineNr"> 42 </span> Reg[EAX]<span class="Delimiter">.</span>i = open<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">flags</span><span class="Comment">*/</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span> +<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L45" class="LineNr"> 45 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L46" class="LineNr"> 46 </span> <span class="Delimiter">}</span> <span id="L47" class="LineNr"> 47 </span> <span class="Normal">case</span> <span class="Constant">6</span>: -<span id="L48" class="LineNr"> 48 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"close: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L48" class="LineNr"> 48 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"close: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> <span id="L49" class="LineNr"> 49 </span> Reg[EAX]<span class="Delimiter">.</span>i = close<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> -<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L51" class="LineNr"> 51 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L52" class="LineNr"> 52 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L53" class="LineNr"> 53 </span> <span class="Normal">case</span> <span class="Constant">8</span>: -<span id="L54" class="LineNr"> 54 </span> <a href='020syscalls.cc.html#L99'>check_mode</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L14'>ECX</a><span class="Delimiter">);</span> -<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"creat: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L57" class="LineNr"> 57 </span> Reg[EAX]<span class="Delimiter">.</span>i = creat<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span> -<span id="L58" class="LineNr"> 58 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L59" class="LineNr"> 59 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L54" class="LineNr"> 54 </span> <a href='020syscalls.cc.html#L106'>check_mode</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L14'>ECX</a><span class="Delimiter">);</span> +<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"creat: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L57" class="LineNr"> 57 </span> Reg[EAX]<span class="Delimiter">.</span>i = creat<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span> +<span id="L58" class="LineNr"> 58 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L60" class="LineNr"> 60 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L61" class="LineNr"> 61 </span> <span class="Normal">case</span> <span class="Constant">10</span>: -<span id="L62" class="LineNr"> 62 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"unlink: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L63" class="LineNr"> 63 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L64" class="LineNr"> 64 </span> Reg[EAX]<span class="Delimiter">.</span>i = unlink<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span> -<span id="L65" class="LineNr"> 65 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L66" class="LineNr"> 66 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L62" class="LineNr"> 62 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"unlink: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L63" class="LineNr"> 63 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L64" class="LineNr"> 64 </span> Reg[EAX]<span class="Delimiter">.</span>i = unlink<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span> +<span id="L65" class="LineNr"> 65 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L67" class="LineNr"> 67 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L68" class="LineNr"> 68 </span> <span class="Normal">case</span> <span class="Constant">38</span>: -<span id="L69" class="LineNr"> 69 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"rename: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" -> "</span> << Reg[ECX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L70" class="LineNr"> 70 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L72" class="LineNr"> 72 </span> Reg[EAX]<span class="Delimiter">.</span>i = rename<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">old filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">new filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span> -<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L74" class="LineNr"> 74 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L69" class="LineNr"> 69 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"rename: "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" -> "</span> << Reg[ECX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L70" class="LineNr"> 70 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[EBX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << Reg[ECX]<span class="Delimiter">.</span>u << <span class="Constant">" => "</span> << <a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L72" class="LineNr"> 72 </span> Reg[EAX]<span class="Delimiter">.</span>i = rename<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">old filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">new filename</span><span class="Comment">*/</span><a href='010---vm.cc.html#L221'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span> +<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>i << end<span class="Delimiter">();</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L211'>raise</a> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L75" class="LineNr"> 75 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L76" class="LineNr"> 76 </span> <span class="Normal">case</span> <span class="Constant">45</span>: <span class="Comment">// brk: modify size of data segment</span> -<span id="L77" class="LineNr"> 77 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"grow <a href='011run.cc.html#L125'>data</a> segment to "</span> << Reg[EBX]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L78" class="LineNr"> 78 </span> <a href='020syscalls.cc.html#L106'>resize_mem</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">new <a href='003trace.cc.html#L230'>end</a> address</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L77" class="LineNr"> 77 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"grow data segment to "</span> << Reg[EBX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L78" class="LineNr"> 78 </span> <a href='010---vm.cc.html#L158'>grow_data_segment</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">new end address</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> <span id="L79" class="LineNr"> 79 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L80" class="LineNr"> 80 </span> <span class="Normal">default</span>: -<span id="L81" class="LineNr"> 81 </span> <a href='003trace.cc.html#L211'>raise</a> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": unimplemented syscall "</span> << Reg[EAX]<span class="Delimiter">.</span>u << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span> -<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">}</span> -<span id="L84" class="LineNr"> 84 </span> -<span id="L85" class="LineNr"> 85 </span><span class="Comment">// SubX is oblivious to file permissions, directories, symbolic links, terminals, and much else besides.</span> -<span id="L86" class="LineNr"> 86 </span><span class="Comment">// Also ignoring any concurrency considerations for now.</span> -<span id="L87" class="LineNr"> 87 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L87'>check_flags</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L88" class="LineNr"> 88 </span> <span class="Normal">uint32_t</span> flags = Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L89" class="LineNr"> 89 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>flags != <span class="Delimiter">((</span>flags & O_RDONLY<span class="Delimiter">)</span> | <span class="Delimiter">(</span>flags & O_WRONLY<span class="Delimiter">)))</span> <span class="Delimiter">{</span> -<span id="L90" class="LineNr"> 90 </span> cerr << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": most POSIX flags to the open() syscall are not supported. Just O_RDONLY and O_WRONLY for now. Zero concurrent access support.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L91" class="LineNr"> 91 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L92" class="LineNr"> 92 </span> <span class="Delimiter">}</span> -<span id="L93" class="LineNr"> 93 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>flags & O_RDONLY<span class="Delimiter">)</span> && <span class="Delimiter">(</span>flags & O_WRONLY<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L94" class="LineNr"> 94 </span> cerr << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": can't open a file for both reading and writing at once. See <a href="http://man7.org/linux/man-pages/man2/open.2.html">http://man7.org/linux/man-pages/man2/open.2.html</a>.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L95" class="LineNr"> 95 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L96" class="LineNr"> 96 </span> <span class="Delimiter">}</span> -<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">}</span> -<span id="L98" class="LineNr"> 98 </span> -<span id="L99" class="LineNr"> 99 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L99'>check_mode</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L100" class="LineNr">100 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[reg]<span class="Delimiter">.</span>u != <span class="PreProc">0</span><span class="Constant">600</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L101" class="LineNr">101 </span> cerr << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": SubX is oblivious to file permissions; register "</span> << <a href='010---vm.cc.html#L23'>reg</a> << <span class="Constant">" must be 0.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Normal">case</span> <span class="Constant">90</span>: <span class="Comment">// mmap: allocate memory outside existing segment allocations</span> +<span id="L81" class="LineNr"> 81 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"mmap: allocate new segment"</span> << end<span class="Delimiter">();</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Comment">// Ignore most arguments for now: address hint, protection flags, sharing flags, fd, offset.</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Comment">// We only support anonymous maps.</span> +<span id="L84" class="LineNr"> 84 </span> Reg[EAX]<span class="Delimiter">.</span>u = <a href='020syscalls.cc.html#L117'>new_segment</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">length</span><span class="Comment">*/</span><a href='010---vm.cc.html#L178'>read_mem_u32</a><span class="Delimiter">(</span>Reg[EBX]<span class="Delimiter">.</span>u+<span class="Constant">0x4</span><span class="Delimiter">));</span> +<span id="L85" class="LineNr"> 85 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result: "</span> << Reg[EAX]<span class="Delimiter">.</span>u << end<span class="Delimiter">();</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Normal">default</span>: +<span id="L88" class="LineNr"> 88 </span> <a href='003trace.cc.html#L211'>raise</a> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": unimplemented syscall "</span> << Reg[EAX]<span class="Delimiter">.</span>u << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">}</span> +<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">}</span> +<span id="L91" class="LineNr"> 91 </span> +<span id="L92" class="LineNr"> 92 </span><span class="Comment">// SubX is oblivious to file permissions, directories, symbolic links, terminals, and much else besides.</span> +<span id="L93" class="LineNr"> 93 </span><span class="Comment">// Also ignoring any concurrency considerations for now.</span> +<span id="L94" class="LineNr"> 94 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L94'>check_flags</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Normal">uint32_t</span> flags = Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>flags != <span class="Delimiter">((</span>flags & O_RDONLY<span class="Delimiter">)</span> | <span class="Delimiter">(</span>flags & O_WRONLY<span class="Delimiter">)))</span> <span class="Delimiter">{</span> +<span id="L97" class="LineNr"> 97 </span> cerr << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": most POSIX flags to the open() syscall are not supported. Just O_RDONLY and O_WRONLY for now. Zero concurrent access support.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L98" class="LineNr"> 98 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span> +<span id="L100" class="LineNr">100 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>flags & O_RDONLY<span class="Delimiter">)</span> && <span class="Delimiter">(</span>flags & O_WRONLY<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L101" class="LineNr">101 </span> cerr << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": can't open a file for both reading and writing at once. See <a href="http://man7.org/linux/man-pages/man2/open.2.html">http://man7.org/linux/man-pages/man2/open.2.html</a>.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> <span id="L102" class="LineNr">102 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L103" class="LineNr">103 </span> <span class="Delimiter">}</span> <span id="L104" class="LineNr">104 </span><span class="Delimiter">}</span> <span id="L105" class="LineNr">105 </span> -<span id="L106" class="LineNr">106 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L106'>resize_mem</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> new_end_address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L107" class="LineNr">107 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>new_end_address < Mem_offset<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L108" class="LineNr">108 </span> <a href='003trace.cc.html#L211'>raise</a> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": can't shrink data segment to before code segment</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L109" class="LineNr">109 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L106" class="LineNr">106 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L106'>check_mode</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L107" class="LineNr">107 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[reg]<span class="Delimiter">.</span>u != <span class="PreProc">0</span><span class="Constant">600</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L108" class="LineNr">108 </span> cerr << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": SubX is oblivious to file permissions; register "</span> << <a href='010---vm.cc.html#L23'>reg</a> << <span class="Constant">" must be 0.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L109" class="LineNr">109 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L110" class="LineNr">110 </span> <span class="Delimiter">}</span> -<span id="L111" class="LineNr">111 </span> <span class="Normal">int32_t</span> new_size = new_end_address - Mem_offset<span class="Delimiter">;</span> -<span id="L112" class="LineNr">112 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>new_size < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L113" class="LineNr">113 </span> <a href='003trace.cc.html#L211'>raise</a> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <a href='010---vm.cc.html#L29'>EIP</a> << <span class="Constant">": shrinking <a href='011run.cc.html#L125'>data</a> segment is not supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L114" class="LineNr">114 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L115" class="LineNr">115 </span> <span class="Delimiter">}</span> -<span id="L116" class="LineNr">116 </span> <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>new_size<span class="Delimiter">);</span> <span class="Comment">// will throw exception on failure</span> -<span id="L117" class="LineNr">117 </span><span class="Delimiter">}</span> +<span id="L111" class="LineNr">111 </span><span class="Delimiter">}</span> +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L114" class="LineNr">114 </span><span class="Normal">uint32_t</span> <a href='020syscalls.cc.html#L114'>Next_segment</a> = <span class="Constant">0xb0000000</span><span class="Delimiter">;</span> <span class="Comment">// 0xc0000000 and up is reserved for Linux kernel</span> +<span id="L115" class="LineNr">115 </span><span class="Normal">const</span> <span class="Normal">uint32_t</span> <a href='020syscalls.cc.html#L115'>SPACE_FOR_SEGMENT</a> = <span class="Constant">0x01000000</span><span class="Delimiter">;</span> +<span id="L116" class="LineNr">116 </span><span class="Delimiter">:(code)</span> +<span id="L117" class="LineNr">117 </span><span class="Normal">uint32_t</span> <a href='020syscalls.cc.html#L117'>new_segment</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> length<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L118" class="LineNr">118 </span> <span class="Normal">uint32_t</span> result = <a href='020syscalls.cc.html#L114'>Next_segment</a><span class="Delimiter">;</span> +<span id="L119" class="LineNr">119 </span> <a href='010---vm.cc.html#L149'>Mem</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span><a href='020syscalls.cc.html#L114'>Next_segment</a><span class="Delimiter">,</span> Next_segment+length<span class="Delimiter">));</span> +<span id="L120" class="LineNr">120 </span> <a href='020syscalls.cc.html#L114'>Next_segment</a> -= <a href='020syscalls.cc.html#L115'>SPACE_FOR_SEGMENT</a><span class="Delimiter">;</span> +<span id="L121" class="LineNr">121 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span> </pre> </body> </html> diff --git a/html/subx/028translate.cc.html b/html/subx/028translate.cc.html index 593b925a..b83965bf 100644 --- a/html/subx/028translate.cc.html +++ b/html/subx/028translate.cc.html @@ -79,146 +79,176 @@ if ('onhashchange' in window) { <span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Main")</span> <span id="L20" class="LineNr"> 20 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"translate"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L253'>START_TRACING_UNTIL_END_OF_SCOPE</a><span class="Delimiter">;</span> -<span id="L22" class="LineNr"> 22 </span> assert<span class="Delimiter">(</span>argc > <span class="Constant">3</span><span class="Delimiter">);</span> -<span id="L23" class="LineNr"> 23 </span> <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">();</span> -<span id="L24" class="LineNr"> 24 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> -<span id="L25" class="LineNr"> 25 </span> ifstream fin<span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">);</span> -<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L27" class="LineNr"> 27 </span> cerr << <span class="Constant">"could not open "</span> << argv[<span class="Constant">2</span>] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L29" class="LineNr"> 29 </span> <span class="Delimiter">}</span> -<span id="L30" class="LineNr"> 30 </span> <a href='011run.cc.html#L132'>parse</a><span class="Delimiter">(</span>fin<span class="Delimiter">,</span> p<span class="Delimiter">);</span> -<span id="L31" class="LineNr"> 31 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L32" class="LineNr"> 32 </span> <a href='011run.cc.html#L209'>transform</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> -<span id="L33" class="LineNr"> 33 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L34" class="LineNr"> 34 </span> <a href='028translate.cc.html#L41'>save_elf</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> argv[<span class="Constant">3</span>]<span class="Delimiter">);</span> -<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> unlink<span class="Delimiter">(</span>argv[<span class="Constant">3</span>]<span class="Delimiter">);</span> -<span id="L36" class="LineNr"> 36 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">}</span> -<span id="L38" class="LineNr"> 38 </span> -<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(code)</span> -<span id="L40" class="LineNr"> 40 </span><span class="Comment">// write out a program to a bare-bones ELF file</span> -<span id="L41" class="LineNr"> 41 </span><span class="Normal">void</span> <a href='028translate.cc.html#L41'>save_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> <span class="Normal">const</span> <span class="Normal">char</span>* filename<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L42" class="LineNr"> 42 </span> ofstream out<span class="Delimiter">(</span>filename<span class="Delimiter">,</span> ios::binary<span class="Delimiter">);</span> -<span id="L43" class="LineNr"> 43 </span> <a href='028translate.cc.html#L49'>write_elf_header</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> p<span class="Delimiter">);</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> -<span id="L45" class="LineNr"> 45 </span> <a href='028translate.cc.html#L143'>write_segment</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> out<span class="Delimiter">);</span> -<span id="L46" class="LineNr"> 46 </span> out<span class="Delimiter">.</span>close<span class="Delimiter">();</span> -<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span> -<span id="L48" class="LineNr"> 48 </span> -<span id="L49" class="LineNr"> 49 </span><span class="Normal">void</span> <a href='028translate.cc.html#L49'>write_elf_header</a><span class="Delimiter">(</span>ostream& out<span class="Delimiter">,</span> <span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L50" class="LineNr"> 50 </span> <span class="Normal">char</span> c = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> -<span id="L51" class="LineNr"> 51 </span><span class="Comment">#define O(X) c = (X); out.write(&c, sizeof(c))</span> -<span id="L52" class="LineNr"> 52 </span><span class="Comment">// host is required to be little-endian</span> -<span id="L53" class="LineNr"> 53 </span><span class="Comment">#define emit(X) out.write(reinterpret_cast<const char*>(&X), sizeof(X))</span> -<span id="L54" class="LineNr"> 54 </span> <span class="SalientComment">//// ehdr</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Comment">// e_ident</span> -<span id="L56" class="LineNr"> 56 </span> O<span class="Delimiter">(</span><span class="Constant">0x7f</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">E</span><span class="Comment">*/</span><span class="Constant">0x45</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">L</span><span class="Comment">*/</span><span class="Constant">0x4c</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">F</span><span class="Comment">*/</span><span class="Constant">0x46</span><span class="Delimiter">);</span> -<span id="L57" class="LineNr"> 57 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> <span class="Comment">// 32-bit format</span> -<span id="L58" class="LineNr"> 58 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> <span class="Comment">// little-endian</span> -<span id="L59" class="LineNr"> 59 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x0</span><span class="Delimiter">);</span> -<span id="L60" class="LineNr"> 60 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <span class="Constant">8</span><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> O<span class="Delimiter">(</span><span class="Constant">0x0</span><span class="Delimiter">);</span> <span class="Delimiter">}</span> -<span id="L61" class="LineNr"> 61 </span> <span class="Comment">// e_type</span> -<span id="L62" class="LineNr"> 62 </span> O<span class="Delimiter">(</span><span class="Constant">0x02</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> -<span id="L63" class="LineNr"> 63 </span> <span class="Comment">// e_machine</span> -<span id="L64" class="LineNr"> 64 </span> O<span class="Delimiter">(</span><span class="Constant">0x03</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> -<span id="L65" class="LineNr"> 65 </span> <span class="Comment">// e_version</span> -<span id="L66" class="LineNr"> 66 </span> O<span class="Delimiter">(</span><span class="Constant">0x01</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> -<span id="L67" class="LineNr"> 67 </span> <span class="Comment">// e_entry</span> -<span id="L68" class="LineNr"> 68 </span> <span class="Normal">int</span> e_entry = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> <span class="Comment">// convention</span> -<span id="L69" class="LineNr"> 69 </span> emit<span class="Delimiter">(</span>e_entry<span class="Delimiter">);</span> -<span id="L70" class="LineNr"> 70 </span> <span class="Comment">// e_phoff -- immediately after ELF header</span> -<span id="L71" class="LineNr"> 71 </span> <span class="Normal">int</span> e_phoff = <span class="Constant">0x34</span><span class="Delimiter">;</span> -<span id="L72" class="LineNr"> 72 </span> emit<span class="Delimiter">(</span>e_phoff<span class="Delimiter">);</span> -<span id="L73" class="LineNr"> 73 </span> <span class="Comment">// e_shoff; unused</span> -<span id="L74" class="LineNr"> 74 </span> <span class="Normal">int</span> dummy32 = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L75" class="LineNr"> 75 </span> emit<span class="Delimiter">(</span>dummy32<span class="Delimiter">);</span> -<span id="L76" class="LineNr"> 76 </span> <span class="Comment">// e_flags; unused</span> -<span id="L77" class="LineNr"> 77 </span> emit<span class="Delimiter">(</span>dummy32<span class="Delimiter">);</span> -<span id="L78" class="LineNr"> 78 </span> <span class="Comment">// e_ehsize</span> -<span id="L79" class="LineNr"> 79 </span> <span class="Normal">uint16_t</span> e_ehsize = <span class="Constant">0x34</span><span class="Delimiter">;</span> -<span id="L80" class="LineNr"> 80 </span> emit<span class="Delimiter">(</span>e_ehsize<span class="Delimiter">);</span> -<span id="L81" class="LineNr"> 81 </span> <span class="Comment">// e_phentsize</span> -<span id="L82" class="LineNr"> 82 </span> <span class="Normal">uint16_t</span> e_phentsize = <span class="Constant">0x20</span><span class="Delimiter">;</span> -<span id="L83" class="LineNr"> 83 </span> emit<span class="Delimiter">(</span>e_phentsize<span class="Delimiter">);</span> -<span id="L84" class="LineNr"> 84 </span> <span class="Comment">// e_phnum</span> -<span id="L85" class="LineNr"> 85 </span> <span class="Normal">uint16_t</span> e_phnum = <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> -<span id="L86" class="LineNr"> 86 </span> emit<span class="Delimiter">(</span>e_phnum<span class="Delimiter">);</span> -<span id="L87" class="LineNr"> 87 </span> <span class="Comment">// e_shentsize</span> -<span id="L88" class="LineNr"> 88 </span> <span class="Normal">uint16_t</span> dummy16 = <span class="Constant">0x0</span><span class="Delimiter">;</span> -<span id="L89" class="LineNr"> 89 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> -<span id="L90" class="LineNr"> 90 </span> <span class="Comment">// e_shnum</span> -<span id="L91" class="LineNr"> 91 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> -<span id="L92" class="LineNr"> 92 </span> <span class="Comment">// e_shstrndx</span> -<span id="L93" class="LineNr"> 93 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> -<span id="L94" class="LineNr"> 94 </span> -<span id="L95" class="LineNr"> 95 </span> <span class="Normal">uint32_t</span> p_offset = <span class="Comment">/*</span><span class="Comment">size of ehdr</span><span class="Comment">*/</span><span class="Constant">0x34</span> + <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)</span>*<span class="Constant">0x20</span><span class="Comment">/*</span><span class="Comment">size of each phdr</span><span class="Comment">*/</span><span class="Delimiter">;</span> -<span id="L96" class="LineNr"> 96 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L97" class="LineNr"> 97 </span> <span class="SalientComment">//// phdr</span> -<span id="L98" class="LineNr"> 98 </span> <span class="Comment">// p_type</span> -<span id="L99" class="LineNr"> 99 </span> <span class="Normal">uint32_t</span> p_type = <span class="Constant">0x1</span><span class="Delimiter">;</span> -<span id="L100" class="LineNr">100 </span> emit<span class="Delimiter">(</span>p_type<span class="Delimiter">);</span> -<span id="L101" class="LineNr">101 </span> <span class="Comment">// p_offset</span> -<span id="L102" class="LineNr">102 </span> emit<span class="Delimiter">(</span>p_offset<span class="Delimiter">);</span> -<span id="L103" class="LineNr">103 </span> <span class="Comment">// p_vaddr</span> -<span id="L104" class="LineNr">104 </span> <span class="Normal">uint32_t</span> p_start = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> -<span id="L105" class="LineNr">105 </span> emit<span class="Delimiter">(</span>p_start<span class="Delimiter">);</span> -<span id="L106" class="LineNr">106 </span> <span class="Comment">// p_paddr</span> -<span id="L107" class="LineNr">107 </span> emit<span class="Delimiter">(</span>p_start<span class="Delimiter">);</span> -<span id="L108" class="LineNr">108 </span> <span class="Comment">// p_filesz</span> -<span id="L109" class="LineNr">109 </span> <span class="Normal">uint32_t</span> size = <a href='028translate.cc.html#L153'>num_words</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> -<span id="L110" class="LineNr">110 </span> assert<span class="Delimiter">(</span>p_offset + size < <a href='012elf.cc.html#L127'>SEGMENT_SIZE</a><span class="Delimiter">);</span> -<span id="L111" class="LineNr">111 </span> emit<span class="Delimiter">(</span>size<span class="Delimiter">);</span> -<span id="L112" class="LineNr">112 </span> <span class="Comment">// p_memsz</span> -<span id="L113" class="LineNr">113 </span> emit<span class="Delimiter">(</span>size<span class="Delimiter">);</span> -<span id="L114" class="LineNr">114 </span> <span class="Comment">// p_flags</span> -<span id="L115" class="LineNr">115 </span> <span class="Normal">uint32_t</span> p_flags = <span class="Delimiter">(</span>i == <span class="Constant">0</span><span class="Delimiter">)</span> ? <span class="Comment">/*</span><span class="Comment">r-x</span><span class="Comment">*/</span><span class="Constant">0x5</span> : <span class="Comment">/*</span><span class="Comment">rw-</span><span class="Comment">*/</span><span class="Constant">0x6</span><span class="Delimiter">;</span> <span class="Comment">// convention: only first segment is code</span> -<span id="L116" class="LineNr">116 </span> emit<span class="Delimiter">(</span>p_flags<span class="Delimiter">);</span> -<span id="L117" class="LineNr">117 </span> -<span id="L118" class="LineNr">118 </span> <span class="Comment">// p_align</span> -<span id="L119" class="LineNr">119 </span> <span class="Comment">// "As the system creates or augments a process image, it logically copies</span> -<span id="L120" class="LineNr">120 </span> <span class="Comment">// a file's segment to a virtual memory segment. When—and if— the system</span> -<span id="L121" class="LineNr">121 </span> <span class="Comment">// physically reads the file depends on the program's execution behavior,</span> -<span id="L122" class="LineNr">122 </span> <span class="Comment">// system load, and so on. A process does not require a physical page</span> -<span id="L123" class="LineNr">123 </span> <span class="Comment">// unless it references the logical page during execution, and processes</span> -<span id="L124" class="LineNr">124 </span> <span class="Comment">// commonly leave many pages unreferenced. Therefore delaying physical</span> -<span id="L125" class="LineNr">125 </span> <span class="Comment">// reads frequently obviates them, improving system performance. To obtain</span> -<span id="L126" class="LineNr">126 </span> <span class="Comment">// this efficiency in practice, executable and shared object files must</span> -<span id="L127" class="LineNr">127 </span> <span class="Comment">// have segment images whose file offsets and virtual addresses are</span> -<span id="L128" class="LineNr">128 </span> <span class="Comment">// congruent, modulo the page size." -- <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a> (page 95)</span> -<span id="L129" class="LineNr">129 </span> <span class="Normal">uint32_t</span> p_align = <span class="Constant">0x1000</span><span class="Delimiter">;</span> <span class="Comment">// default page size on linux</span> -<span id="L130" class="LineNr">130 </span> emit<span class="Delimiter">(</span>p_align<span class="Delimiter">);</span> -<span id="L131" class="LineNr">131 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset % p_align != p_start % p_align<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L132" class="LineNr">132 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"segment starting at 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << p_start << <span class="Constant">" is improperly aligned; alignment for p_offset "</span> << p_offset << <span class="Constant">" should be "</span> << <span class="Delimiter">(</span>p_offset % p_align<span class="Delimiter">)</span> << <span class="Constant">" but is "</span> << <span class="Delimiter">(</span>p_start % p_align<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L133" class="LineNr">133 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L134" class="LineNr">134 </span> <span class="Delimiter">}</span> -<span id="L135" class="LineNr">135 </span> -<span id="L136" class="LineNr">136 </span> <span class="Comment">// prepare for next segment</span> -<span id="L137" class="LineNr">137 </span> p_offset += size<span class="Delimiter">;</span> -<span id="L138" class="LineNr">138 </span> <span class="Delimiter">}</span> -<span id="L139" class="LineNr">139 </span><span class="Comment">#undef O</span> -<span id="L140" class="LineNr">140 </span><span class="Comment">#undef emit</span> -<span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span> -<span id="L142" class="LineNr">142 </span> -<span id="L143" class="LineNr">143 </span><span class="Normal">void</span> <a href='028translate.cc.html#L143'>write_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L144" class="LineNr">144 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L145" class="LineNr">145 </span> <span class="Normal">const</span> vector<word>& w = s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">;</span> -<span id="L146" class="LineNr">146 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L147" class="LineNr">147 </span> <span class="Normal">uint8_t</span> x = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> <span class="Comment">// we're done with metadata by this point</span> -<span id="L148" class="LineNr">148 </span> out<span class="Delimiter">.</span>write<span class="Delimiter">(</span><span class="Normal">reinterpret_cast</span><<span class="Normal">const</span> <span class="Normal">char</span>*><span class="Delimiter">(</span>&x<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">sizeof(byte)</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L149" class="LineNr">149 </span> <span class="Delimiter">}</span> -<span id="L150" class="LineNr">150 </span> <span class="Delimiter">}</span> -<span id="L151" class="LineNr">151 </span><span class="Delimiter">}</span> -<span id="L152" class="LineNr">152 </span> -<span id="L153" class="LineNr">153 </span><span class="Normal">uint32_t</span> <a href='028translate.cc.html#L153'>num_words</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L154" class="LineNr">154 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L155" class="LineNr">155 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L156" class="LineNr">156 </span> sum += <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> -<span id="L157" class="LineNr">157 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> -<span id="L158" class="LineNr">158 </span><span class="Delimiter">}</span> -<span id="L159" class="LineNr">159 </span> -<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L161" class="LineNr">161 </span><span class="Normal">using</span> std::ios<span class="Delimiter">;</span> +<span id="L22" class="LineNr"> 22 </span> <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> +<span id="L24" class="LineNr"> 24 </span> string output_filename<span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip 'subx translate'</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span> i < argc<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[i]<span class="Delimiter">,</span> <span class="Constant">"-o"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L27" class="LineNr"> 27 </span> ++i<span class="Delimiter">;</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i >= argc<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L29" class="LineNr"> 29 </span> <a href='028translate.cc.html#L66'>print_translate_usage</a><span class="Delimiter">();</span> +<span id="L30" class="LineNr"> 30 </span> cerr << <span class="Constant">"'-o' must be followed by a filename to write results to</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L31" class="LineNr"> 31 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Delimiter">}</span> +<span id="L33" class="LineNr"> 33 </span> output_filename = argv[i]<span class="Delimiter">;</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Delimiter">}</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L36" class="LineNr"> 36 </span> ifstream fin<span class="Delimiter">(</span>argv[i]<span class="Delimiter">);</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L38" class="LineNr"> 38 </span> cerr << <span class="Constant">"could not open "</span> << argv[i] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Delimiter">}</span> +<span id="L41" class="LineNr"> 41 </span> parse<span class="Delimiter">(</span>fin<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Delimiter">}</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">}</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L46" class="LineNr"> 46 </span> <a href='028translate.cc.html#L66'>print_translate_usage</a><span class="Delimiter">();</span> +<span id="L47" class="LineNr"> 47 </span> cerr << <span class="Constant">"nothing to do; must provide at least one file to read</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L48" class="LineNr"> 48 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Delimiter">}</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>output_filename<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L51" class="LineNr"> 51 </span> <a href='028translate.cc.html#L66'>print_translate_usage</a><span class="Delimiter">();</span> +<span id="L52" class="LineNr"> 52 </span> cerr << <span class="Constant">"must provide a filename to write to using '-o'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L53" class="LineNr"> 53 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Delimiter">}</span> +<span id="L55" class="LineNr"> 55 </span> <a href='011run.cc.html#L231'>transform</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L57" class="LineNr"> 57 </span> <a href='028translate.cc.html#L71'>save_elf</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> output_filename<span class="Delimiter">);</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L59" class="LineNr"> 59 </span> unlink<span class="Delimiter">(</span>output_filename<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> +<span id="L60" class="LineNr"> 60 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">}</span> +<span id="L62" class="LineNr"> 62 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span> +<span id="L64" class="LineNr"> 64 </span> +<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">:(code)</span> +<span id="L66" class="LineNr"> 66 </span><span class="Normal">void</span> <a href='028translate.cc.html#L66'>print_translate_usage</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L67" class="LineNr"> 67 </span> cerr << <span class="Constant">"Usage: subx translate file1 file2 ... -o output</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span> +<span id="L69" class="LineNr"> 69 </span> +<span id="L70" class="LineNr"> 70 </span><span class="Comment">// write out a program to a bare-bones ELF file</span> +<span id="L71" class="LineNr"> 71 </span><span class="Normal">void</span> <a href='028translate.cc.html#L71'>save_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> <span class="Normal">const</span> string& filename<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L72" class="LineNr"> 72 </span> ofstream out<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> ios::binary<span class="Delimiter">);</span> +<span id="L73" class="LineNr"> 73 </span> <a href='028translate.cc.html#L79'>write_elf_header</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> +<span id="L75" class="LineNr"> 75 </span> <a href='028translate.cc.html#L173'>write_segment</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> out<span class="Delimiter">);</span> +<span id="L76" class="LineNr"> 76 </span> out<span class="Delimiter">.</span>close<span class="Delimiter">();</span> +<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">}</span> +<span id="L78" class="LineNr"> 78 </span> +<span id="L79" class="LineNr"> 79 </span><span class="Normal">void</span> <a href='028translate.cc.html#L79'>write_elf_header</a><span class="Delimiter">(</span>ostream& out<span class="Delimiter">,</span> <span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Normal">char</span> c = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> +<span id="L81" class="LineNr"> 81 </span><span class="Comment">#define O(X) c = (X); out.write(&c, sizeof(c))</span> +<span id="L82" class="LineNr"> 82 </span><span class="Comment">// host is required to be little-endian</span> +<span id="L83" class="LineNr"> 83 </span><span class="Comment">#define emit(X) out.write(reinterpret_cast<const char*>(&X), sizeof(X))</span> +<span id="L84" class="LineNr"> 84 </span> <span class="SalientComment">//// ehdr</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Comment">// e_ident</span> +<span id="L86" class="LineNr"> 86 </span> O<span class="Delimiter">(</span><span class="Constant">0x7f</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">E</span><span class="Comment">*/</span><span class="Constant">0x45</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">L</span><span class="Comment">*/</span><span class="Constant">0x4c</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">F</span><span class="Comment">*/</span><span class="Constant">0x46</span><span class="Delimiter">);</span> +<span id="L87" class="LineNr"> 87 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> <span class="Comment">// 32-bit format</span> +<span id="L88" class="LineNr"> 88 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> <span class="Comment">// little-endian</span> +<span id="L89" class="LineNr"> 89 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x0</span><span class="Delimiter">);</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <span class="Constant">8</span><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> O<span class="Delimiter">(</span><span class="Constant">0x0</span><span class="Delimiter">);</span> <span class="Delimiter">}</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Comment">// e_type</span> +<span id="L92" class="LineNr"> 92 </span> O<span class="Delimiter">(</span><span class="Constant">0x02</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L93" class="LineNr"> 93 </span> <span class="Comment">// e_machine</span> +<span id="L94" class="LineNr"> 94 </span> O<span class="Delimiter">(</span><span class="Constant">0x03</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Comment">// e_version</span> +<span id="L96" class="LineNr"> 96 </span> O<span class="Delimiter">(</span><span class="Constant">0x01</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Comment">// e_entry</span> +<span id="L98" class="LineNr"> 98 </span> <span class="Normal">int</span> e_entry = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>start<span class="Delimiter">;</span> <span class="Comment">// convention</span> +<span id="L99" class="LineNr"> 99 </span> emit<span class="Delimiter">(</span>e_entry<span class="Delimiter">);</span> +<span id="L100" class="LineNr">100 </span> <span class="Comment">// e_phoff -- immediately after ELF header</span> +<span id="L101" class="LineNr">101 </span> <span class="Normal">int</span> e_phoff = <span class="Constant">0x34</span><span class="Delimiter">;</span> +<span id="L102" class="LineNr">102 </span> emit<span class="Delimiter">(</span>e_phoff<span class="Delimiter">);</span> +<span id="L103" class="LineNr">103 </span> <span class="Comment">// e_shoff; unused</span> +<span id="L104" class="LineNr">104 </span> <span class="Normal">int</span> dummy32 = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L105" class="LineNr">105 </span> emit<span class="Delimiter">(</span>dummy32<span class="Delimiter">);</span> +<span id="L106" class="LineNr">106 </span> <span class="Comment">// e_flags; unused</span> +<span id="L107" class="LineNr">107 </span> emit<span class="Delimiter">(</span>dummy32<span class="Delimiter">);</span> +<span id="L108" class="LineNr">108 </span> <span class="Comment">// e_ehsize</span> +<span id="L109" class="LineNr">109 </span> <span class="Normal">uint16_t</span> e_ehsize = <span class="Constant">0x34</span><span class="Delimiter">;</span> +<span id="L110" class="LineNr">110 </span> emit<span class="Delimiter">(</span>e_ehsize<span class="Delimiter">);</span> +<span id="L111" class="LineNr">111 </span> <span class="Comment">// e_phentsize</span> +<span id="L112" class="LineNr">112 </span> <span class="Normal">uint16_t</span> e_phentsize = <span class="Constant">0x20</span><span class="Delimiter">;</span> +<span id="L113" class="LineNr">113 </span> emit<span class="Delimiter">(</span>e_phentsize<span class="Delimiter">);</span> +<span id="L114" class="LineNr">114 </span> <span class="Comment">// e_phnum</span> +<span id="L115" class="LineNr">115 </span> <span class="Normal">uint16_t</span> e_phnum = <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> +<span id="L116" class="LineNr">116 </span> emit<span class="Delimiter">(</span>e_phnum<span class="Delimiter">);</span> +<span id="L117" class="LineNr">117 </span> <span class="Comment">// e_shentsize</span> +<span id="L118" class="LineNr">118 </span> <span class="Normal">uint16_t</span> dummy16 = <span class="Constant">0x0</span><span class="Delimiter">;</span> +<span id="L119" class="LineNr">119 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> +<span id="L120" class="LineNr">120 </span> <span class="Comment">// e_shnum</span> +<span id="L121" class="LineNr">121 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> +<span id="L122" class="LineNr">122 </span> <span class="Comment">// e_shstrndx</span> +<span id="L123" class="LineNr">123 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> +<span id="L124" class="LineNr">124 </span> +<span id="L125" class="LineNr">125 </span> <span class="Normal">uint32_t</span> p_offset = <span class="Comment">/*</span><span class="Comment">size of ehdr</span><span class="Comment">*/</span><span class="Constant">0x34</span> + <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)</span>*<span class="Constant">0x20</span><span class="Comment">/*</span><span class="Comment">size of each phdr</span><span class="Comment">*/</span><span class="Delimiter">;</span> +<span id="L126" class="LineNr">126 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L127" class="LineNr">127 </span> <span class="SalientComment">//// phdr</span> +<span id="L128" class="LineNr">128 </span> <span class="Comment">// p_type</span> +<span id="L129" class="LineNr">129 </span> <span class="Normal">uint32_t</span> p_type = <span class="Constant">0x1</span><span class="Delimiter">;</span> +<span id="L130" class="LineNr">130 </span> emit<span class="Delimiter">(</span>p_type<span class="Delimiter">);</span> +<span id="L131" class="LineNr">131 </span> <span class="Comment">// p_offset</span> +<span id="L132" class="LineNr">132 </span> emit<span class="Delimiter">(</span>p_offset<span class="Delimiter">);</span> +<span id="L133" class="LineNr">133 </span> <span class="Comment">// p_vaddr</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">uint32_t</span> p_start = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>start<span class="Delimiter">;</span> +<span id="L135" class="LineNr">135 </span> emit<span class="Delimiter">(</span>p_start<span class="Delimiter">);</span> +<span id="L136" class="LineNr">136 </span> <span class="Comment">// p_paddr</span> +<span id="L137" class="LineNr">137 </span> emit<span class="Delimiter">(</span>p_start<span class="Delimiter">);</span> +<span id="L138" class="LineNr">138 </span> <span class="Comment">// p_filesz</span> +<span id="L139" class="LineNr">139 </span> <span class="Normal">uint32_t</span> size = <a href='028translate.cc.html#L183'>num_words</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L140" class="LineNr">140 </span> assert<span class="Delimiter">(</span>p_offset + size < <a href='012elf.cc.html#L135'>SEGMENT_SIZE</a><span class="Delimiter">);</span> +<span id="L141" class="LineNr">141 </span> emit<span class="Delimiter">(</span>size<span class="Delimiter">);</span> +<span id="L142" class="LineNr">142 </span> <span class="Comment">// p_memsz</span> +<span id="L143" class="LineNr">143 </span> emit<span class="Delimiter">(</span>size<span class="Delimiter">);</span> +<span id="L144" class="LineNr">144 </span> <span class="Comment">// p_flags</span> +<span id="L145" class="LineNr">145 </span> <span class="Normal">uint32_t</span> p_flags = <span class="Delimiter">(</span>i == <span class="Constant">0</span><span class="Delimiter">)</span> ? <span class="Comment">/*</span><span class="Comment">r-x</span><span class="Comment">*/</span><span class="Constant">0x5</span> : <span class="Comment">/*</span><span class="Comment">rw-</span><span class="Comment">*/</span><span class="Constant">0x6</span><span class="Delimiter">;</span> <span class="Comment">// convention: only first segment is code</span> +<span id="L146" class="LineNr">146 </span> emit<span class="Delimiter">(</span>p_flags<span class="Delimiter">);</span> +<span id="L147" class="LineNr">147 </span> +<span id="L148" class="LineNr">148 </span> <span class="Comment">// p_align</span> +<span id="L149" class="LineNr">149 </span> <span class="Comment">// "As the system creates or augments a process image, it logically copies</span> +<span id="L150" class="LineNr">150 </span> <span class="Comment">// a file's segment to a virtual memory segment. When—and if— the system</span> +<span id="L151" class="LineNr">151 </span> <span class="Comment">// physically reads the file depends on the program's execution behavior,</span> +<span id="L152" class="LineNr">152 </span> <span class="Comment">// system load, and so on. A process does not require a physical page</span> +<span id="L153" class="LineNr">153 </span> <span class="Comment">// unless it references the logical page during execution, and processes</span> +<span id="L154" class="LineNr">154 </span> <span class="Comment">// commonly leave many pages unreferenced. Therefore delaying physical</span> +<span id="L155" class="LineNr">155 </span> <span class="Comment">// reads frequently obviates them, improving system performance. To obtain</span> +<span id="L156" class="LineNr">156 </span> <span class="Comment">// this efficiency in practice, executable and shared object files must</span> +<span id="L157" class="LineNr">157 </span> <span class="Comment">// have segment images whose file offsets and virtual addresses are</span> +<span id="L158" class="LineNr">158 </span> <span class="Comment">// congruent, modulo the page size." -- <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a> (page 95)</span> +<span id="L159" class="LineNr">159 </span> <span class="Normal">uint32_t</span> p_align = <span class="Constant">0x1000</span><span class="Delimiter">;</span> <span class="Comment">// default page size on linux</span> +<span id="L160" class="LineNr">160 </span> emit<span class="Delimiter">(</span>p_align<span class="Delimiter">);</span> +<span id="L161" class="LineNr">161 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset % p_align != p_start % p_align<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L162" class="LineNr">162 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"segment starting at 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << p_start << <span class="Constant">" is improperly aligned; alignment for p_offset "</span> << p_offset << <span class="Constant">" should be "</span> << <span class="Delimiter">(</span>p_offset % p_align<span class="Delimiter">)</span> << <span class="Constant">" but is "</span> << <span class="Delimiter">(</span>p_start % p_align<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L163" class="LineNr">163 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L164" class="LineNr">164 </span> <span class="Delimiter">}</span> +<span id="L165" class="LineNr">165 </span> +<span id="L166" class="LineNr">166 </span> <span class="Comment">// prepare for next segment</span> +<span id="L167" class="LineNr">167 </span> p_offset += size<span class="Delimiter">;</span> +<span id="L168" class="LineNr">168 </span> <span class="Delimiter">}</span> +<span id="L169" class="LineNr">169 </span><span class="Comment">#undef O</span> +<span id="L170" class="LineNr">170 </span><span class="Comment">#undef emit</span> +<span id="L171" class="LineNr">171 </span><span class="Delimiter">}</span> +<span id="L172" class="LineNr">172 </span> +<span id="L173" class="LineNr">173 </span><span class="Normal">void</span> <a href='028translate.cc.html#L173'>write_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L174" class="LineNr">174 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L175" class="LineNr">175 </span> <span class="Normal">const</span> vector<word>& w = s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">;</span> +<span id="L176" class="LineNr">176 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L177" class="LineNr">177 </span> <span class="Normal">uint8_t</span> x = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">).</span>data<span class="Delimiter">);</span> <span class="Comment">// we're done with metadata by this point</span> +<span id="L178" class="LineNr">178 </span> out<span class="Delimiter">.</span>write<span class="Delimiter">(</span><span class="Normal">reinterpret_cast</span><<span class="Normal">const</span> <span class="Normal">char</span>*><span class="Delimiter">(</span>&x<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">sizeof(byte)</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L179" class="LineNr">179 </span> <span class="Delimiter">}</span> +<span id="L180" class="LineNr">180 </span> <span class="Delimiter">}</span> +<span id="L181" class="LineNr">181 </span><span class="Delimiter">}</span> +<span id="L182" class="LineNr">182 </span> +<span id="L183" class="LineNr">183 </span><span class="Normal">uint32_t</span> <a href='028translate.cc.html#L183'>num_words</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L184" class="LineNr">184 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L185" class="LineNr">185 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L186" class="LineNr">186 </span> sum += <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> +<span id="L187" class="LineNr">187 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> +<span id="L188" class="LineNr">188 </span><span class="Delimiter">}</span> +<span id="L189" class="LineNr">189 </span> +<span id="L190" class="LineNr">190 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L191" class="LineNr">191 </span><span class="Normal">using</span> std::ios<span class="Delimiter">;</span> </pre> </body> </html> diff --git a/html/subx/030---operands.cc.html b/html/subx/030---operands.cc.html index 0129da0a..af7cf865 100644 --- a/html/subx/030---operands.cc.html +++ b/html/subx/030---operands.cc.html @@ -20,6 +20,7 @@ a:hover { text-decoration: underline; } .LineNr { color: #444444; } .Constant { color: #00a0a0; } .Delimiter { color: #800080; } +.Special { color: #c00000; } .SalientComment { color: #00ffff; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } @@ -198,7 +199,7 @@ if ('onhashchange' in window) { <span id="L137" class="LineNr">137 </span> <span id="L138" class="LineNr">138 </span><span class="Delimiter">:(after "Begin Transforms")</span> <span id="L139" class="LineNr">139 </span><span class="Comment">// Begin Level-2 Transforms</span> -<span id="L140" class="LineNr">140 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pack_operands<span class="Delimiter">);</span> +<span id="L140" class="LineNr">140 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pack_operands<span class="Delimiter">);</span> <span id="L141" class="LineNr">141 </span><span class="Comment">// End Level-2 Transforms</span> <span id="L142" class="LineNr">142 </span> <span id="L143" class="LineNr">143 </span><span class="Delimiter">:(code)</span> @@ -206,13 +207,13 @@ if ('onhashchange' in window) { <span id="L145" class="LineNr">145 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L146" class="LineNr">146 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> <span id="L147" class="LineNr">147 </span> <span class="Comment">// Pack Operands(segment code)</span> -<span id="L148" class="LineNr">148 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- pack operands"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L148" class="LineNr">148 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- pack operands"</span> << end<span class="Delimiter">();</span> <span id="L149" class="LineNr">149 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L150" class="LineNr">150 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L151" class="LineNr">151 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>all_hex_bytes<span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L152" class="LineNr">152 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"packing instruction '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">with metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L151" class="LineNr">151 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L377'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L152" class="LineNr">152 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"packing instruction '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">with metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> <span id="L153" class="LineNr">153 </span> pack_operands<span class="Delimiter">(</span>inst<span class="Delimiter">);</span> -<span id="L154" class="LineNr">154 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after packing: '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">without metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">.</span>words<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L154" class="LineNr">154 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after packing: '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">without metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">.</span>words<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> <span id="L155" class="LineNr">155 </span> <span class="Delimiter">}</span> <span id="L156" class="LineNr">156 </span><span class="Delimiter">}</span> <span id="L157" class="LineNr">157 </span> @@ -228,11 +229,11 @@ if ('onhashchange' in window) { <span id="L167" class="LineNr">167 </span> <span id="L168" class="LineNr">168 </span><span class="Normal">void</span> <a href='030---operands.cc.html#L168'>add_opcodes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L169" class="LineNr">169 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span> -<span id="L170" class="LineNr">170 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f2"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f3"</span><span class="Delimiter">)</span> +<span id="L170" class="LineNr">170 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f2"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span id="L171" class="LineNr">171 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> -<span id="L172" class="LineNr">172 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f3"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> +<span id="L172" class="LineNr">172 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f3"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span id="L173" class="LineNr">173 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</span> -<span id="L174" class="LineNr">174 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f2"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> +<span id="L174" class="LineNr">174 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f2"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span id="L175" class="LineNr">175 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</span> <span id="L176" class="LineNr">176 </span><span class="Delimiter">}</span> <span id="L177" class="LineNr">177 </span> @@ -242,24 +243,24 @@ if ('onhashchange' in window) { <span id="L181" class="LineNr">181 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L182" class="LineNr">182 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L183" class="LineNr">183 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L184" class="LineNr">184 </span> mod = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L184" class="LineNr">184 </span> mod = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L185" class="LineNr">185 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L186" class="LineNr">186 </span> <span class="Delimiter">}</span> <span id="L187" class="LineNr">187 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L188" class="LineNr">188 </span> rm32 = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L188" class="LineNr">188 </span> rm32 = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L189" class="LineNr">189 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L190" class="LineNr">190 </span> <span class="Delimiter">}</span> <span id="L191" class="LineNr">191 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L192" class="LineNr">192 </span> reg_subop = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L192" class="LineNr">192 </span> reg_subop = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L193" class="LineNr">193 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L194" class="LineNr">194 </span> <span class="Delimiter">}</span> <span id="L195" class="LineNr">195 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L196" class="LineNr">196 </span> reg_subop = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L196" class="LineNr">196 </span> reg_subop = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L197" class="LineNr">197 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L198" class="LineNr">198 </span> <span class="Delimiter">}</span> <span id="L199" class="LineNr">199 </span> <span class="Delimiter">}</span> <span id="L200" class="LineNr">200 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span> -<span id="L201" class="LineNr">201 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='030---operands.cc.html#L267'>hex_byte_text</a><span class="Delimiter">((</span>mod << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>reg_subop << <span class="Constant">3</span><span class="Delimiter">)</span> | rm32<span class="Delimiter">));</span> +<span id="L201" class="LineNr">201 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='030---operands.cc.html#L268'>hex_byte_text</a><span class="Delimiter">((</span>mod << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>reg_subop << <span class="Constant">3</span><span class="Delimiter">)</span> | rm32<span class="Delimiter">));</span> <span id="L202" class="LineNr">202 </span><span class="Delimiter">}</span> <span id="L203" class="LineNr">203 </span> <span id="L204" class="LineNr">204 </span><span class="Normal">void</span> <a href='030---operands.cc.html#L204'>add_sib_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -268,20 +269,20 @@ if ('onhashchange' in window) { <span id="L207" class="LineNr">207 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L208" class="LineNr">208 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L209" class="LineNr">209 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"scale"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L210" class="LineNr">210 </span> scale = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L210" class="LineNr">210 </span> scale = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L211" class="LineNr">211 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L212" class="LineNr">212 </span> <span class="Delimiter">}</span> <span id="L213" class="LineNr">213 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L214" class="LineNr">214 </span> index = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L214" class="LineNr">214 </span> index = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L215" class="LineNr">215 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L216" class="LineNr">216 </span> <span class="Delimiter">}</span> <span id="L217" class="LineNr">217 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L218" class="LineNr">218 </span> base = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L218" class="LineNr">218 </span> base = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L219" class="LineNr">219 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L220" class="LineNr">220 </span> <span class="Delimiter">}</span> <span id="L221" class="LineNr">221 </span> <span class="Delimiter">}</span> <span id="L222" class="LineNr">222 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span> -<span id="L223" class="LineNr">223 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='030---operands.cc.html#L267'>hex_byte_text</a><span class="Delimiter">((</span>scale << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>index << <span class="Constant">3</span><span class="Delimiter">)</span> | base<span class="Delimiter">));</span> +<span id="L223" class="LineNr">223 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='030---operands.cc.html#L268'>hex_byte_text</a><span class="Delimiter">((</span>scale << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>index << <span class="Constant">3</span><span class="Delimiter">)</span> | base<span class="Delimiter">));</span> <span id="L224" class="LineNr">224 </span><span class="Delimiter">}</span> <span id="L225" class="LineNr">225 </span> <span id="L226" class="LineNr">226 </span><span class="Normal">void</span> <a href='030---operands.cc.html#L226'>add_disp_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -308,200 +309,210 @@ if ('onhashchange' in window) { <span id="L247" class="LineNr">247 </span> <span id="L248" class="LineNr">248 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L249" class="LineNr">249 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span> -<span id="L250" class="LineNr">250 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>num == <span class="Constant">1</span> || !is_hex_int<span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L251" class="LineNr">251 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>w<span class="Delimiter">);</span> -<span id="L252" class="LineNr">252 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L427'>is_hex_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> -<span id="L253" class="LineNr">253 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L125'>data</a> = <a href='030---operands.cc.html#L274'>hex_byte_to_string</a><span class="Delimiter">(</span><a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">));</span> -<span id="L254" class="LineNr">254 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L255" class="LineNr">255 </span> <span class="Delimiter">}</span> -<span id="L256" class="LineNr">256 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)),</span> num<span class="Delimiter">);</span> -<span id="L257" class="LineNr">257 </span><span class="Delimiter">}</span> -<span id="L258" class="LineNr">258 </span> -<span id="L259" class="LineNr">259 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L260" class="LineNr">260 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span> -<span id="L261" class="LineNr">261 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < num<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L262" class="LineNr">262 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='030---operands.cc.html#L267'>hex_byte_text</a><span class="Delimiter">(</span>val & <span class="Constant">0xff</span><span class="Delimiter">));</span> -<span id="L263" class="LineNr">263 </span> val = val >> <span class="Constant">8</span><span class="Delimiter">;</span> -<span id="L264" class="LineNr">264 </span> <span class="Delimiter">}</span> -<span id="L265" class="LineNr">265 </span><span class="Delimiter">}</span> -<span id="L266" class="LineNr">266 </span> -<span id="L267" class="LineNr">267 </span><a href='011run.cc.html#L123'>word</a> <a href='030---operands.cc.html#L267'>hex_byte_text</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L268" class="LineNr">268 </span> <a href='011run.cc.html#L123'>word</a> result<span class="Delimiter">;</span> -<span id="L269" class="LineNr">269 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = <a href='030---operands.cc.html#L274'>hex_byte_to_string</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> -<span id="L270" class="LineNr">270 </span> result<span class="Delimiter">.</span>original = result<span class="Delimiter">.</span>data+<span class="Constant">"/auto"</span><span class="Delimiter">;</span> -<span id="L271" class="LineNr">271 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L272" class="LineNr">272 </span><span class="Delimiter">}</span> -<span id="L273" class="LineNr">273 </span> -<span id="L274" class="LineNr">274 </span>string <a href='030---operands.cc.html#L274'>hex_byte_to_string</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L275" class="LineNr">275 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L276" class="LineNr">276 </span> <span class="Comment">// uint8_t prints without padding, but int8_t will expand to 32 bits again</span> -<span id="L277" class="LineNr">277 </span> out << <a href='010---vm.cc.html#L259'>HEXBYTE</a> << <a href='010---vm.cc.html#L262'>NUM</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> -<span id="L278" class="LineNr">278 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L279" class="LineNr">279 </span><span class="Delimiter">}</span> -<span id="L280" class="LineNr">280 </span> -<span id="L281" class="LineNr">281 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> vector<word>& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L282" class="LineNr">282 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L283" class="LineNr">283 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L284" class="LineNr">284 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> -<span id="L285" class="LineNr">285 </span> out << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L286" class="LineNr">286 </span> <span class="Delimiter">}</span> -<span id="L287" class="LineNr">287 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L288" class="LineNr">288 </span><span class="Delimiter">}</span> -<span id="L289" class="LineNr">289 </span> -<span id="L290" class="LineNr">290 </span><span class="Delimiter">:(before "End Unit Tests")</span> -<span id="L291" class="LineNr">291 </span><span class="Normal">void</span> <a href='030---operands.cc.html#L291'>test_preserve_metadata_when_emitting_single_byte</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L292" class="LineNr">292 </span> <a href='011run.cc.html#L123'>word</a> in<span class="Delimiter">;</span> -<span id="L293" class="LineNr">293 </span> in<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = <span class="Constant">"f0"</span><span class="Delimiter">;</span> -<span id="L294" class="LineNr">294 </span> in<span class="Delimiter">.</span>original = <span class="Constant">"f0/foo"</span><span class="Delimiter">;</span> -<span id="L295" class="LineNr">295 </span> <a href='011run.cc.html#L117'>line</a> out<span class="Delimiter">;</span> -<span id="L296" class="LineNr">296 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> in<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L297" class="LineNr">297 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">,</span> <span class="Constant">"f0"</span><span class="Delimiter">);</span> -<span id="L298" class="LineNr">298 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original<span class="Delimiter">,</span> <span class="Constant">"f0/foo"</span><span class="Delimiter">);</span> -<span id="L299" class="LineNr">299 </span><span class="Delimiter">}</span> -<span id="L300" class="LineNr">300 </span> -<span id="L301" class="LineNr">301 </span><span class="Delimiter">:(scenario pack_disp8)</span> -<span id="L302" class="LineNr">302 </span>== <span class="Constant">0x1</span> -<span id="L303" class="LineNr">303 </span><span class="Constant">74</span> <span class="Constant">2</span>/disp8 <span class="Comment"># jump 2 bytes away if ZF is set</span> -<span id="L304" class="LineNr">304 </span><span class="traceContains">+transform: packing instruction '74 2/disp8'</span> -<span id="L305" class="LineNr">305 </span><span class="traceContains">+transform: instruction after packing: '74 02'</span> -<span id="L306" class="LineNr">306 </span> -<span id="L307" class="LineNr">307 </span><span class="Delimiter">:(scenarios transform)</span> -<span id="L308" class="LineNr">308 </span><span class="Delimiter">:(scenario pack_disp8_negative)</span> -<span id="L309" class="LineNr">309 </span>== <span class="Constant">0x1</span> -<span id="L310" class="LineNr">310 </span><span class="Comment"># running this will cause an infinite loop</span> -<span id="L311" class="LineNr">311 </span><span class="Constant">74</span> -<span class="Constant">1</span>/disp8 <span class="Comment"># jump 1 byte before if ZF is set</span> -<span id="L312" class="LineNr">312 </span><span class="traceContains">+transform: packing instruction '74 -1/disp8'</span> -<span id="L313" class="LineNr">313 </span><span class="traceContains">+transform: instruction after packing: '74 ff'</span> -<span id="L314" class="LineNr">314 </span><span class="Delimiter">:(scenarios run)</span> -<span id="L315" class="LineNr">315 </span> -<span id="L316" class="LineNr">316 </span><span class="Comment">//: helper for scenario</span> -<span id="L317" class="LineNr">317 </span><span class="Delimiter">:(code)</span> -<span id="L318" class="LineNr">318 </span><span class="Normal">void</span> <a href='011run.cc.html#L209'>transform</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L319" class="LineNr">319 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> -<span id="L320" class="LineNr">320 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> -<span id="L321" class="LineNr">321 </span> <a href='011run.cc.html#L132'>parse</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> -<span id="L322" class="LineNr">322 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L323" class="LineNr">323 </span> <a href='011run.cc.html#L209'>transform</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> -<span id="L324" class="LineNr">324 </span><span class="Delimiter">}</span> -<span id="L325" class="LineNr">325 </span> -<span id="L326" class="LineNr">326 </span><span class="Delimiter">:(scenario pack_modrm_imm32)</span> -<span id="L327" class="LineNr">327 </span>== <span class="Constant">0x1</span> -<span id="L328" class="LineNr">328 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L329" class="LineNr">329 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L330" class="LineNr">330 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L331" class="LineNr">331 </span> <span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/mod/direct <span class="Constant">3</span>/ebx/rm32 <span class="Constant">1</span>/imm32 <span class="Comment"># add 1 to EBX</span> -<span id="L332" class="LineNr">332 </span><span class="traceContains">+transform: packing instruction '81 0/add/subop 3/mod/direct 3/ebx/rm32 1/imm32'</span> -<span id="L333" class="LineNr">333 </span><span class="traceContains">+transform: instruction after packing: '81 c3 01 00 00 00'</span> -<span id="L334" class="LineNr">334 </span> -<span id="L335" class="LineNr">335 </span><span class="Delimiter">:(scenario pack_imm32_large)</span> -<span id="L336" class="LineNr">336 </span>== <span class="Constant">0x1</span> -<span id="L337" class="LineNr">337 </span>b9 <span class="Constant">0x080490a7</span>/imm32 <span class="Comment"># copy to ECX</span> -<span id="L338" class="LineNr">338 </span><span class="traceContains">+transform: packing instruction 'b9 0x080490a7/imm32'</span> -<span id="L339" class="LineNr">339 </span><span class="traceContains">+transform: instruction after packing: 'b9 a7 90 04 08'</span> -<span id="L340" class="LineNr">340 </span> -<span id="L341" class="LineNr">341 </span><span class="Delimiter">:(scenario pack_immediate_constants_hex)</span> -<span id="L342" class="LineNr">342 </span>== <span class="Constant">0x1</span> -<span id="L343" class="LineNr">343 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L344" class="LineNr">344 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L345" class="LineNr">345 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L346" class="LineNr">346 </span> bb <span class="Constant">0x2a</span>/imm32 <span class="Comment"># copy 42 to EBX</span> -<span id="L347" class="LineNr">347 </span><span class="traceContains">+transform: packing instruction 'bb 0x2a/imm32'</span> -<span id="L348" class="LineNr">348 </span><span class="traceContains">+transform: instruction after packing: 'bb 2a 00 00 00'</span> -<span id="L349" class="LineNr">349 </span><span class="traceContains">+run: copy imm32 0x0000002a to <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L350" class="LineNr">350 </span> -<span id="L351" class="LineNr">351 </span><span class="Delimiter">:(scenarios transform)</span> -<span id="L352" class="LineNr">352 </span><span class="Delimiter">:(scenario pack_silently_ignores_non_hex)</span> -<span id="L353" class="LineNr">353 </span>== <span class="Constant">0x1</span> -<span id="L354" class="LineNr">354 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L355" class="LineNr">355 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L356" class="LineNr">356 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L357" class="LineNr">357 </span> bb foo/imm32 <span class="Comment"># copy foo to EBX</span> -<span id="L358" class="LineNr">358 </span><span class="traceContains">+transform: packing instruction 'bb foo/imm32'</span> -<span id="L359" class="LineNr">359 </span><span class="Comment"># no change (we're just not printing metadata to the trace)</span> -<span id="L360" class="LineNr">360 </span><span class="traceContains">+transform: instruction after packing: 'bb foo'</span> -<span id="L361" class="LineNr">361 </span>$error: <span class="Constant">0</span> -<span id="L362" class="LineNr">362 </span><span class="Delimiter">:(scenarios run)</span> -<span id="L363" class="LineNr">363 </span> -<span id="L364" class="LineNr">364 </span><span class="SalientComment">//:: helpers</span> -<span id="L365" class="LineNr">365 </span> -<span id="L366" class="LineNr">366 </span><span class="Delimiter">:(code)</span> -<span id="L367" class="LineNr">367 </span><span class="Normal">bool</span> all_hex_bytes<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L368" class="LineNr">368 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L369" class="LineNr">369 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> -<span id="L370" class="LineNr">370 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L371" class="LineNr">371 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> -<span id="L372" class="LineNr">372 </span><span class="Delimiter">}</span> +<span id="L250" class="LineNr">250 </span> <span class="Normal">bool</span> is_number = <a href='030---operands.cc.html#L437'>looks_like_hex_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L251" class="LineNr">251 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>num == <span class="Constant">1</span> || !is_number<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L252" class="LineNr">252 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>w<span class="Delimiter">);</span> <span class="Comment">// preserve existing metadata</span> +<span id="L253" class="LineNr">253 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_number<span class="Delimiter">)</span> +<span id="L254" class="LineNr">254 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>data = <a href='030---operands.cc.html#L275'>hex_byte_to_string</a><span class="Delimiter">(</span><a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">));</span> +<span id="L255" class="LineNr">255 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L256" class="LineNr">256 </span> <span class="Delimiter">}</span> +<span id="L257" class="LineNr">257 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">)),</span> num<span class="Delimiter">);</span> +<span id="L258" class="LineNr">258 </span><span class="Delimiter">}</span> +<span id="L259" class="LineNr">259 </span> +<span id="L260" class="LineNr">260 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L261" class="LineNr">261 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L262" class="LineNr">262 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < num<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L263" class="LineNr">263 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='030---operands.cc.html#L268'>hex_byte_text</a><span class="Delimiter">(</span>val & <span class="Constant">0xff</span><span class="Delimiter">));</span> +<span id="L264" class="LineNr">264 </span> val = val >> <span class="Constant">8</span><span class="Delimiter">;</span> +<span id="L265" class="LineNr">265 </span> <span class="Delimiter">}</span> +<span id="L266" class="LineNr">266 </span><span class="Delimiter">}</span> +<span id="L267" class="LineNr">267 </span> +<span id="L268" class="LineNr">268 </span><a href='011run.cc.html#L123'>word</a> <a href='030---operands.cc.html#L268'>hex_byte_text</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L269" class="LineNr">269 </span> <a href='011run.cc.html#L123'>word</a> result<span class="Delimiter">;</span> +<span id="L270" class="LineNr">270 </span> result<span class="Delimiter">.</span>data = <a href='030---operands.cc.html#L275'>hex_byte_to_string</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> +<span id="L271" class="LineNr">271 </span> result<span class="Delimiter">.</span>original = result<span class="Delimiter">.</span>data+<span class="Constant">"/auto"</span><span class="Delimiter">;</span> +<span id="L272" class="LineNr">272 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L273" class="LineNr">273 </span><span class="Delimiter">}</span> +<span id="L274" class="LineNr">274 </span> +<span id="L275" class="LineNr">275 </span>string <a href='030---operands.cc.html#L275'>hex_byte_to_string</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L276" class="LineNr">276 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L277" class="LineNr">277 </span> <span class="Comment">// uint8_t prints without padding, but int8_t will expand to 32 bits again</span> +<span id="L278" class="LineNr">278 </span> out << <a href='010---vm.cc.html#L367'>HEXBYTE</a> << <a href='010---vm.cc.html#L370'>NUM</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> +<span id="L279" class="LineNr">279 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L280" class="LineNr">280 </span><span class="Delimiter">}</span> +<span id="L281" class="LineNr">281 </span> +<span id="L282" class="LineNr">282 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> vector<word>& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L283" class="LineNr">283 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L284" class="LineNr">284 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L285" class="LineNr">285 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L286" class="LineNr">286 </span> out << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">;</span> +<span id="L287" class="LineNr">287 </span> <span class="Delimiter">}</span> +<span id="L288" class="LineNr">288 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L289" class="LineNr">289 </span><span class="Delimiter">}</span> +<span id="L290" class="LineNr">290 </span> +<span id="L291" class="LineNr">291 </span><span class="Delimiter">:(before "End Unit Tests")</span> +<span id="L292" class="LineNr">292 </span><span class="Normal">void</span> <a href='030---operands.cc.html#L292'>test_preserve_metadata_when_emitting_single_byte</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L293" class="LineNr">293 </span> <a href='011run.cc.html#L123'>word</a> in<span class="Delimiter">;</span> +<span id="L294" class="LineNr">294 </span> in<span class="Delimiter">.</span>data = <span class="Constant">"f0"</span><span class="Delimiter">;</span> +<span id="L295" class="LineNr">295 </span> in<span class="Delimiter">.</span>original = <span class="Constant">"f0/foo"</span><span class="Delimiter">;</span> +<span id="L296" class="LineNr">296 </span> <a href='011run.cc.html#L117'>line</a> out<span class="Delimiter">;</span> +<span id="L297" class="LineNr">297 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> in<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L298" class="LineNr">298 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data<span class="Delimiter">,</span> <span class="Constant">"f0"</span><span class="Delimiter">);</span> +<span id="L299" class="LineNr">299 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original<span class="Delimiter">,</span> <span class="Constant">"f0/foo"</span><span class="Delimiter">);</span> +<span id="L300" class="LineNr">300 </span><span class="Delimiter">}</span> +<span id="L301" class="LineNr">301 </span> +<span id="L302" class="LineNr">302 </span><span class="Delimiter">:(scenario pack_disp8)</span> +<span id="L303" class="LineNr">303 </span>== <span class="Constant">0x1</span> +<span id="L304" class="LineNr">304 </span><span class="Constant">74</span> <span class="Constant">2</span>/disp8 <span class="Comment"># jump 2 bytes away if ZF is set</span> +<span id="L305" class="LineNr">305 </span><span class="traceContains">+transform: packing instruction '74 2/disp8'</span> +<span id="L306" class="LineNr">306 </span><span class="traceContains">+transform: instruction after packing: '74 02'</span> +<span id="L307" class="LineNr">307 </span> +<span id="L308" class="LineNr">308 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L309" class="LineNr">309 </span><span class="Delimiter">:(scenario pack_disp8_negative)</span> +<span id="L310" class="LineNr">310 </span>== <span class="Constant">0x1</span> +<span id="L311" class="LineNr">311 </span><span class="Comment"># running this will cause an infinite loop</span> +<span id="L312" class="LineNr">312 </span><span class="Constant">74</span> -<span class="Constant">1</span>/disp8 <span class="Comment"># jump 1 byte before if ZF is set</span> +<span id="L313" class="LineNr">313 </span><span class="traceContains">+transform: packing instruction '74 -1/disp8'</span> +<span id="L314" class="LineNr">314 </span><span class="traceContains">+transform: instruction after packing: '74 ff'</span> +<span id="L315" class="LineNr">315 </span><span class="Delimiter">:(scenarios run)</span> +<span id="L316" class="LineNr">316 </span> +<span id="L317" class="LineNr">317 </span><span class="Comment">//: helper for scenario</span> +<span id="L318" class="LineNr">318 </span><span class="Delimiter">:(code)</span> +<span id="L319" class="LineNr">319 </span><span class="Normal">void</span> <a href='011run.cc.html#L231'>transform</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L320" class="LineNr">320 </span> <a href='011run.cc.html#L99'>program</a> p<span class="Delimiter">;</span> +<span id="L321" class="LineNr">321 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> +<span id="L322" class="LineNr">322 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L323" class="LineNr">323 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L324" class="LineNr">324 </span> <a href='011run.cc.html#L231'>transform</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L325" class="LineNr">325 </span><span class="Delimiter">}</span> +<span id="L326" class="LineNr">326 </span> +<span id="L327" class="LineNr">327 </span><span class="Delimiter">:(scenario pack_modrm_imm32)</span> +<span id="L328" class="LineNr">328 </span>== <span class="Constant">0x1</span> +<span id="L329" class="LineNr">329 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L330" class="LineNr">330 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L331" class="LineNr">331 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L332" class="LineNr">332 </span> <span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/mod/direct <span class="Constant">3</span>/ebx/rm32 <span class="Constant">1</span>/imm32 <span class="Comment"># add 1 to EBX</span> +<span id="L333" class="LineNr">333 </span><span class="traceContains">+transform: packing instruction '81 0/add/subop 3/mod/direct 3/ebx/rm32 1/imm32'</span> +<span id="L334" class="LineNr">334 </span><span class="traceContains">+transform: instruction after packing: '81 c3 01 00 00 00'</span> +<span id="L335" class="LineNr">335 </span> +<span id="L336" class="LineNr">336 </span><span class="Delimiter">:(scenario pack_imm32_large)</span> +<span id="L337" class="LineNr">337 </span>== <span class="Constant">0x1</span> +<span id="L338" class="LineNr">338 </span>b9 <span class="Constant">0x080490a7</span>/imm32 <span class="Comment"># copy to ECX</span> +<span id="L339" class="LineNr">339 </span><span class="traceContains">+transform: packing instruction 'b9 0x080490a7/imm32'</span> +<span id="L340" class="LineNr">340 </span><span class="traceContains">+transform: instruction after packing: 'b9 a7 90 04 08'</span> +<span id="L341" class="LineNr">341 </span> +<span id="L342" class="LineNr">342 </span><span class="Delimiter">:(scenario pack_immediate_constants_hex)</span> +<span id="L343" class="LineNr">343 </span>== <span class="Constant">0x1</span> +<span id="L344" class="LineNr">344 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L345" class="LineNr">345 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L346" class="LineNr">346 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L347" class="LineNr">347 </span> bb <span class="Constant">0x2a</span>/imm32 <span class="Comment"># copy 42 to EBX</span> +<span id="L348" class="LineNr">348 </span><span class="traceContains">+transform: packing instruction 'bb 0x2a/imm32'</span> +<span id="L349" class="LineNr">349 </span><span class="traceContains">+transform: instruction after packing: 'bb 2a 00 00 00'</span> +<span id="L350" class="LineNr">350 </span><span class="traceContains">+run: copy imm32 0x0000002a to <a href='010---vm.cc.html#L16'>EBX</a></span> +<span id="L351" class="LineNr">351 </span> +<span id="L352" class="LineNr">352 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L353" class="LineNr">353 </span><span class="Delimiter">:(scenario pack_silently_ignores_non_hex)</span> +<span id="L354" class="LineNr">354 </span><span class="Special">% Hide_errors = true;</span> +<span id="L355" class="LineNr">355 </span>== <span class="Constant">0x1</span> +<span id="L356" class="LineNr">356 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L357" class="LineNr">357 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L358" class="LineNr">358 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L359" class="LineNr">359 </span> bb foo/imm32 <span class="Comment"># copy to EBX</span> +<span id="L360" class="LineNr">360 </span><span class="traceContains">+transform: packing instruction 'bb foo/imm32'</span> +<span id="L361" class="LineNr">361 </span><span class="Comment"># no change (we're just not printing metadata to the trace)</span> +<span id="L362" class="LineNr">362 </span><span class="traceContains">+transform: instruction after packing: 'bb foo'</span> +<span id="L363" class="LineNr">363 </span><span class="Delimiter">:(scenarios run)</span> +<span id="L364" class="LineNr">364 </span> +<span id="L365" class="LineNr">365 </span><span class="Delimiter">:(scenario pack_flags_bad_hex)</span> +<span id="L366" class="LineNr">366 </span><span class="Special">% Hide_errors = true;</span> +<span id="L367" class="LineNr">367 </span>== <span class="Constant">0x1</span> +<span id="L368" class="LineNr">368 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L369" class="LineNr">369 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L370" class="LineNr">370 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L371" class="LineNr">371 </span> bb 0xfoo/imm32 <span class="Comment"># copy to EBX</span> +<span id="L372" class="LineNr">372 </span><span class="traceContains">+error: not a number: 0xfoo</span> <span id="L373" class="LineNr">373 </span> -<span id="L374" class="LineNr">374 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L374'>is_hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> word& curr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L375" class="LineNr">375 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L384'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> -<span id="L376" class="LineNr">376 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L377" class="LineNr">377 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> -<span id="L378" class="LineNr">378 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L379" class="LineNr">379 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789abcdefABCDEF"</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> -<span id="L380" class="LineNr">380 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L374" class="LineNr">374 </span><span class="SalientComment">//:: helpers</span> +<span id="L375" class="LineNr">375 </span> +<span id="L376" class="LineNr">376 </span><span class="Delimiter">:(code)</span> +<span id="L377" class="LineNr">377 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L377'>all_hex_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L378" class="LineNr">378 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L379" class="LineNr">379 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> +<span id="L380" class="LineNr">380 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> <span id="L381" class="LineNr">381 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L382" class="LineNr">382 </span><span class="Delimiter">}</span> <span id="L383" class="LineNr">383 </span> -<span id="L384" class="LineNr">384 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L384'>contains_any_operand_metadata</a><span class="Delimiter">(</span><span class="Normal">const</span> word& <a href='011run.cc.html#L123'>word</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L385" class="LineNr">385 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L386" class="LineNr">386 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> != <a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">())</span> -<span id="L387" class="LineNr">387 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> -<span id="L388" class="LineNr">388 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L389" class="LineNr">389 </span><span class="Delimiter">}</span> -<span id="L390" class="LineNr">390 </span> -<span id="L391" class="LineNr">391 </span><span class="Normal">bool</span> has_operand_metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L392" class="LineNr">392 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L393" class="LineNr">393 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L394" class="LineNr">394 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L395" class="LineNr">395 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L396" class="LineNr">396 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' has conflicting "</span> << m << <span class="Constant">" operands</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L397" class="LineNr">397 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L398" class="LineNr">398 </span> <span class="Delimiter">}</span> -<span id="L399" class="LineNr">399 </span> result =<span class="Constant"> true</span><span class="Delimiter">;</span> -<span id="L400" class="LineNr">400 </span> <span class="Delimiter">}</span> -<span id="L401" class="LineNr">401 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L402" class="LineNr">402 </span><span class="Delimiter">}</span> -<span id="L403" class="LineNr">403 </span> -<span id="L404" class="LineNr">404 </span><span class="Normal">bool</span> has_operand_metadata<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L405" class="LineNr">405 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L406" class="LineNr">406 </span> <span class="Normal">bool</span> metadata_found =<span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L407" class="LineNr">407 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L408" class="LineNr">408 </span> <span class="Normal">const</span> string& curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L409" class="LineNr">409 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span>find<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> == <a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span> -<span id="L410" class="LineNr">410 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata_found<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L411" class="LineNr">411 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L412" class="LineNr">412 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L413" class="LineNr">413 </span> <span class="Delimiter">}</span> -<span id="L414" class="LineNr">414 </span> metadata_found =<span class="Constant"> true</span><span class="Delimiter">;</span> -<span id="L415" class="LineNr">415 </span> result = <span class="Delimiter">(</span>curr == m<span class="Delimiter">);</span> -<span id="L416" class="LineNr">416 </span> <span class="Delimiter">}</span> -<span id="L417" class="LineNr">417 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L418" class="LineNr">418 </span><span class="Delimiter">}</span> -<span id="L419" class="LineNr">419 </span> -<span id="L420" class="LineNr">420 </span><a href='011run.cc.html#L123'>word</a> metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L421" class="LineNr">421 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L422" class="LineNr">422 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> -<span id="L423" class="LineNr">423 </span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L424" class="LineNr">424 </span> assert<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span> -<span id="L425" class="LineNr">425 </span><span class="Delimiter">}</span> -<span id="L426" class="LineNr">426 </span> -<span id="L427" class="LineNr">427 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L427'>is_hex_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L428" class="LineNr">428 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L429" class="LineNr">429 </span> <span class="Normal">size_t</span> pos = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L430" class="LineNr">430 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span> || s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'+'</span><span class="Delimiter">)</span> pos++<span class="Delimiter">;</span> -<span id="L431" class="LineNr">431 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>pos<span class="Delimiter">,</span> pos+<span class="Constant">2</span><span class="Delimiter">)</span> == <span class="Constant">"0x"</span><span class="Delimiter">)</span> pos += <span class="Constant">2</span><span class="Delimiter">;</span> -<span id="L432" class="LineNr">432 </span> <span class="Identifier">return</span> s<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789abcdefABCDEF"</span><span class="Delimiter">,</span> pos<span class="Delimiter">)</span> == string::npos<span class="Delimiter">;</span> -<span id="L433" class="LineNr">433 </span><span class="Delimiter">}</span> -<span id="L434" class="LineNr">434 </span> -<span id="L435" class="LineNr">435 </span><span class="Delimiter">:(code)</span> -<span id="L436" class="LineNr">436 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L437" class="LineNr">437 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L438" class="LineNr">438 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L439" class="LineNr">439 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> -<span id="L440" class="LineNr">440 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original<span class="Delimiter">;</span> -<span id="L441" class="LineNr">441 </span> <span class="Delimiter">}</span> -<span id="L442" class="LineNr">442 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L384" class="LineNr">384 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L384'>is_hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> word& curr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L385" class="LineNr">385 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L394'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> +<span id="L386" class="LineNr">386 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L387" class="LineNr">387 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> +<span id="L388" class="LineNr">388 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L389" class="LineNr">389 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789abcdefABCDEF"</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> +<span id="L390" class="LineNr">390 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L391" class="LineNr">391 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L392" class="LineNr">392 </span><span class="Delimiter">}</span> +<span id="L393" class="LineNr">393 </span> +<span id="L394" class="LineNr">394 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L394'>contains_any_operand_metadata</a><span class="Delimiter">(</span><span class="Normal">const</span> word& <a href='011run.cc.html#L123'>word</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L395" class="LineNr">395 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L396" class="LineNr">396 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> != <a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span>end<span class="Delimiter">())</span> +<span id="L397" class="LineNr">397 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L398" class="LineNr">398 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L399" class="LineNr">399 </span><span class="Delimiter">}</span> +<span id="L400" class="LineNr">400 </span> +<span id="L401" class="LineNr">401 </span><span class="Normal">bool</span> has_operand_metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L402" class="LineNr">402 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L403" class="LineNr">403 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L404" class="LineNr">404 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L405" class="LineNr">405 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L406" class="LineNr">406 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' has conflicting "</span> << m << <span class="Constant">" operands</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L407" class="LineNr">407 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L408" class="LineNr">408 </span> <span class="Delimiter">}</span> +<span id="L409" class="LineNr">409 </span> result =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L410" class="LineNr">410 </span> <span class="Delimiter">}</span> +<span id="L411" class="LineNr">411 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L412" class="LineNr">412 </span><span class="Delimiter">}</span> +<span id="L413" class="LineNr">413 </span> +<span id="L414" class="LineNr">414 </span><span class="Normal">bool</span> has_operand_metadata<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L415" class="LineNr">415 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L416" class="LineNr">416 </span> <span class="Normal">bool</span> metadata_found =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L417" class="LineNr">417 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L418" class="LineNr">418 </span> <span class="Normal">const</span> string& curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L419" class="LineNr">419 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span>find<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> == <a href='030---operands.cc.html#L43'>Instruction_operands</a><span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span> +<span id="L420" class="LineNr">420 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata_found<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L421" class="LineNr">421 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L422" class="LineNr">422 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L423" class="LineNr">423 </span> <span class="Delimiter">}</span> +<span id="L424" class="LineNr">424 </span> metadata_found =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L425" class="LineNr">425 </span> result = <span class="Delimiter">(</span>curr == m<span class="Delimiter">);</span> +<span id="L426" class="LineNr">426 </span> <span class="Delimiter">}</span> +<span id="L427" class="LineNr">427 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L428" class="LineNr">428 </span><span class="Delimiter">}</span> +<span id="L429" class="LineNr">429 </span> +<span id="L430" class="LineNr">430 </span><a href='011run.cc.html#L123'>word</a> metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L431" class="LineNr">431 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L432" class="LineNr">432 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> +<span id="L433" class="LineNr">433 </span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L434" class="LineNr">434 </span> assert<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span> +<span id="L435" class="LineNr">435 </span><span class="Delimiter">}</span> +<span id="L436" class="LineNr">436 </span> +<span id="L437" class="LineNr">437 </span><span class="Normal">bool</span> <a href='030---operands.cc.html#L437'>looks_like_hex_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L438" class="LineNr">438 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L439" class="LineNr">439 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span> || s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'+'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L440" class="LineNr">440 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isdigit<span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> <span class="Comment">// includes '0x' prefix</span> +<span id="L441" class="LineNr">441 </span> <span class="Comment">// End looks_like_hex_int(s) Detectors</span> +<span id="L442" class="LineNr">442 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> <span id="L443" class="LineNr">443 </span><span class="Delimiter">}</span> +<span id="L444" class="LineNr">444 </span> +<span id="L445" class="LineNr">445 </span><span class="Delimiter">:(code)</span> +<span id="L446" class="LineNr">446 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L447" class="LineNr">447 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L448" class="LineNr">448 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L449" class="LineNr">449 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L450" class="LineNr">450 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original<span class="Delimiter">;</span> +<span id="L451" class="LineNr">451 </span> <span class="Delimiter">}</span> +<span id="L452" class="LineNr">452 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L453" class="LineNr">453 </span><span class="Delimiter">}</span> </pre> </body> </html> diff --git a/html/subx/031check_operands.cc.html b/html/subx/031check_operands.cc.html index d53cc447..34ce47b6 100644 --- a/html/subx/031check_operands.cc.html +++ b/html/subx/031check_operands.cc.html @@ -80,7 +80,7 @@ if ('onhashchange' in window) { <span id="L16" class="LineNr"> 16 </span> <span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(code)</span> <span id="L18" class="LineNr"> 18 </span><span class="Normal">void</span> check_operands<span class="Delimiter">(</span><span class="Normal">const</span> segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L19" class="LineNr"> 19 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- check operands"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L19" class="LineNr"> 19 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- check operands"</span> << end<span class="Delimiter">();</span> <span id="L20" class="LineNr"> 20 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L21" class="LineNr"> 21 </span> check_operands<span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> <span id="L22" class="LineNr"> 22 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// stop at the first mal-formed instruction</span> @@ -89,11 +89,11 @@ if ('onhashchange' in window) { <span id="L25" class="LineNr"> 25 </span> <span id="L26" class="LineNr"> 26 </span><span class="Normal">void</span> check_operands<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L27" class="LineNr"> 27 </span> <a href='011run.cc.html#L123'>word</a> op = <a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L29" class="LineNr"> 29 </span> <a href='031check_operands.cc.html#L504'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L31" class="LineNr"> 31 </span> <span class="Delimiter">}</span> -<span id="L32" class="LineNr"> 32 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span>data == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L33" class="LineNr"> 33 </span> <a href='031check_operands.cc.html#L472'>check_operands_f3</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L34" class="LineNr"> 34 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L35" class="LineNr"> 35 </span> <span class="Delimiter">}</span> @@ -101,19 +101,19 @@ if ('onhashchange' in window) { <span id="L37" class="LineNr"> 37 </span><span class="Delimiter">}</span> <span id="L38" class="LineNr"> 38 </span> <span id="L39" class="LineNr"> 39 </span><a href='011run.cc.html#L123'>word</a> <a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L40" class="LineNr"> 40 </span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = <a href='031check_operands.cc.html#L529'>tolower</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> +<span id="L40" class="LineNr"> 40 </span> op<span class="Delimiter">.</span>data = <a href='031check_operands.cc.html#L529'>tolower</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span>data<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> <span id="L41" class="LineNr"> 41 </span> <span class="Comment">// opcodes can't be negative</span> -<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">,</span> <span class="Constant">"0x"</span><span class="Delimiter">))</span> -<span id="L43" class="LineNr"> 43 </span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> -<span id="L45" class="LineNr"> 45 </span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = string<span class="Delimiter">(</span><span class="Constant">"0"</span><span class="Delimiter">)</span>+op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span>data<span class="Delimiter">,</span> <span class="Constant">"0x"</span><span class="Delimiter">))</span> +<span id="L43" class="LineNr"> 43 </span> op<span class="Delimiter">.</span>data = op<span class="Delimiter">.</span>data<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span>data<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> +<span id="L45" class="LineNr"> 45 </span> op<span class="Delimiter">.</span>data = string<span class="Delimiter">(</span><span class="Constant">"0"</span><span class="Delimiter">)</span>+op<span class="Delimiter">.</span>data<span class="Delimiter">;</span> <span id="L46" class="LineNr"> 46 </span> <span class="Identifier">return</span> op<span class="Delimiter">;</span> <span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span> <span id="L48" class="LineNr"> 48 </span> <span id="L49" class="LineNr"> 49 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L49'>test_preprocess_op</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L50" class="LineNr"> 50 </span> <a href='011run.cc.html#L123'>word</a> w1<span class="Delimiter">;</span> w1<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = <span class="Constant">"0xf"</span><span class="Delimiter">;</span> -<span id="L51" class="LineNr"> 51 </span> <a href='011run.cc.html#L123'>word</a> w2<span class="Delimiter">;</span> w2<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = <span class="Constant">"0f"</span><span class="Delimiter">;</span> -<span id="L52" class="LineNr"> 52 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span>w1<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">,</span> <a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span>w2<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L50" class="LineNr"> 50 </span> <a href='011run.cc.html#L123'>word</a> w1<span class="Delimiter">;</span> w1<span class="Delimiter">.</span>data = <span class="Constant">"0xf"</span><span class="Delimiter">;</span> +<span id="L51" class="LineNr"> 51 </span> <a href='011run.cc.html#L123'>word</a> w2<span class="Delimiter">;</span> w2<span class="Delimiter">.</span>data = <span class="Constant">"0f"</span><span class="Delimiter">;</span> +<span id="L52" class="LineNr"> 52 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span>w1<span class="Delimiter">).</span>data<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span>w2<span class="Delimiter">).</span>data<span class="Delimiter">);</span> <span id="L53" class="LineNr"> 53 </span><span class="Delimiter">}</span> <span id="L54" class="LineNr"> 54 </span> <span id="L55" class="LineNr"> 55 </span><span class="Comment">//: To check the operands for an opcode, we'll track the permitted operands</span> @@ -309,7 +309,7 @@ if ('onhashchange' in window) { <span id="L245" class="LineNr">245 </span> <span id="L246" class="LineNr">246 </span><span class="Normal">void</span> check_operands<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L247" class="LineNr">247 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>op<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L248" class="LineNr">248 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><a href='031check_operands.cc.html#L92'>Permitted_operands</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L248" class="LineNr">248 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><a href='031check_operands.cc.html#L92'>Permitted_operands</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L249" class="LineNr">249 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>HAS<span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L62'>MODRM</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L250" class="LineNr">250 </span> <a href='031check_operands.cc.html#L342'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L251" class="LineNr">251 </span> <a href='031check_operands.cc.html#L369'>compare_bitvector_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> expected_bitvector<span class="Delimiter">,</span> op<span class="Delimiter">);</span> @@ -322,7 +322,7 @@ if ('onhashchange' in window) { <span id="L258" class="LineNr">258 </span><span class="Comment">//: Many instructions can be checked just by comparing bitvectors.</span> <span id="L259" class="LineNr">259 </span> <span id="L260" class="LineNr">260 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L260'>compare_bitvector</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> expected<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L261" class="LineNr">261 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>all_hex_bytes<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L293'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L261" class="LineNr">261 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L377'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L293'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> <span id="L262" class="LineNr">262 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L284'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L263" class="LineNr">263 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> <span id="L264" class="LineNr">264 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>bitvector == expected<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// all good with this instruction</span> @@ -331,9 +331,9 @@ if ('onhashchange' in window) { <span id="L267" class="LineNr">267 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> == <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// all good with this operand</span> <span id="L268" class="LineNr">268 </span> <span class="Normal">const</span> string& optype = <a href='031check_operands.cc.html#L72'>Operand_type_name</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L269" class="LineNr">269 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> > <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> -<span id="L270" class="LineNr">270 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L270" class="LineNr">270 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L271" class="LineNr">271 </span> <span class="Normal">else</span> -<span id="L272" class="LineNr">272 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L272" class="LineNr">272 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L273" class="LineNr">273 </span> <span class="Comment">// continue giving all errors for a single instruction</span> <span id="L274" class="LineNr">274 </span> <span class="Delimiter">}</span> <span id="L275" class="LineNr">275 </span> <span class="Comment">// ignore settings in any unused bits</span> @@ -341,8 +341,8 @@ if ('onhashchange' in window) { <span id="L277" class="LineNr">277 </span> <span id="L278" class="LineNr">278 </span>string <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span><span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L279" class="LineNr">279 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>op<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> -<span id="L280" class="LineNr">280 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> -<span id="L281" class="LineNr">281 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+get<span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> +<span id="L280" class="LineNr">280 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L281" class="LineNr">281 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+get<span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">)</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> <span id="L282" class="LineNr">282 </span><span class="Delimiter">}</span> <span id="L283" class="LineNr">283 </span> <span id="L284" class="LineNr">284 </span><span class="Normal">uint32_t</span> <a href='031check_operands.cc.html#L284'>compute_operand_bitvector</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -359,9 +359,9 @@ if ('onhashchange' in window) { <span id="L295" class="LineNr">295 </span><span class="Delimiter">}</span> <span id="L296" class="LineNr">296 </span> <span id="L297" class="LineNr">297 </span><span class="Normal">int</span> <a href='031check_operands.cc.html#L297'>first_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L298" class="LineNr">298 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> -<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f2"</span> || inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L300" class="LineNr">300 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> +<span id="L298" class="LineNr">298 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f2"</span> || inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L300" class="LineNr">300 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span id="L301" class="LineNr">301 </span> <span class="Identifier">return</span> <span class="Constant">3</span><span class="Delimiter">;</span> <span id="L302" class="LineNr">302 </span> <span class="Normal">else</span> <span id="L303" class="LineNr">303 </span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> @@ -378,7 +378,7 @@ if ('onhashchange' in window) { <span id="L314" class="LineNr">314 </span> <span class="Normal">const</span> string& curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L315" class="LineNr">315 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='031check_operands.cc.html#L73'>Operand_type</a><span class="Delimiter">,</span> curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span> <span id="L316" class="LineNr">316 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>found<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L317" class="LineNr">317 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L317" class="LineNr">317 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L318" class="LineNr">318 </span> <span class="Identifier">return</span> <a href='031check_operands.cc.html#L93'>INVALID_OPERANDS</a><span class="Delimiter">;</span> <span id="L319" class="LineNr">319 </span> <span class="Delimiter">}</span> <span id="L320" class="LineNr">320 </span> bv = <span class="Delimiter">(</span><span class="Constant">1</span> << get<span class="Delimiter">(</span><a href='031check_operands.cc.html#L73'>Operand_type</a><span class="Delimiter">,</span> curr<span class="Delimiter">));</span> @@ -404,18 +404,18 @@ if ('onhashchange' in window) { <span id="L340" class="LineNr">340 </span> <span id="L341" class="LineNr">341 </span><span class="Delimiter">:(code)</span> <span id="L342" class="LineNr">342 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L342'>check_operands_modrm</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L343" class="LineNr">343 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>all_hex_bytes<span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L343" class="LineNr">343 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L377'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> <span id="L344" class="LineNr">344 </span> <a href='031check_operands.cc.html#L389'>check_operand_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L345" class="LineNr">345 </span> <a href='031check_operands.cc.html#L389'>check_operand_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L346" class="LineNr">346 </span> <span class="Comment">// no check for r32; some instructions don't use it; just assume it's 0 if missing</span> -<span id="L347" class="LineNr">347 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"81"</span> || op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"8f"</span> || op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"ff"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// keep sync'd with 'help subop'</span> +<span id="L347" class="LineNr">347 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span>data == <span class="Constant">"81"</span> || op<span class="Delimiter">.</span>data == <span class="Constant">"8f"</span> || op<span class="Delimiter">.</span>data == <span class="Constant">"ff"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// keep sync'd with 'help subop'</span> <span id="L348" class="LineNr">348 </span> <a href='031check_operands.cc.html#L389'>check_operand_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L349" class="LineNr">349 </span> <a href='031check_operands.cc.html#L394'>check_operand_metadata_absent</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">,</span> op<span class="Delimiter">,</span> <span class="Constant">"should be replaced by subop"</span><span class="Delimiter">);</span> <span id="L350" class="LineNr">350 </span> <span class="Delimiter">}</span> <span id="L351" class="LineNr">351 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L352" class="LineNr">352 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> != <span class="Constant">"4"</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L352" class="LineNr">352 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">).</span>data != <span class="Constant">"4"</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L353" class="LineNr">353 </span> <span class="Comment">// SIB byte checks</span> -<span id="L354" class="LineNr">354 </span> <span class="Normal">uint8_t</span> mod = <a href='011run.cc.html#L245'>hex_byte</a><span class="Delimiter">(</span>metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L354" class="LineNr">354 </span> <span class="Normal">uint8_t</span> mod = <a href='011run.cc.html#L273'>hex_byte</a><span class="Delimiter">(</span>metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">).</span>data<span class="Delimiter">);</span> <span id="L355" class="LineNr">355 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod != <span class="Comment">/*</span><span class="Comment">direct</span><span class="Comment">*/</span><span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L356" class="LineNr">356 </span> <a href='031check_operands.cc.html#L389'>check_operand_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L357" class="LineNr">357 </span> <a href='031check_operands.cc.html#L389'>check_operand_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span class="Comment">// otherwise why go to SIB?</span> @@ -431,7 +431,7 @@ if ('onhashchange' in window) { <span id="L367" class="LineNr">367 </span><span class="Comment">// exception 1: ignore modrm bit since we already checked it above</span> <span id="L368" class="LineNr">368 </span><span class="Comment">// exception 2: modrm instructions can use a displacement on occasion</span> <span id="L369" class="LineNr">369 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L369'>compare_bitvector_modrm</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> expected<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L370" class="LineNr">370 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>all_hex_bytes<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L293'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L370" class="LineNr">370 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L377'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L293'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> <span id="L371" class="LineNr">371 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L284'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L372" class="LineNr">372 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> <span id="L373" class="LineNr">373 </span> expected = CLEAR<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L62'>MODRM</a><span class="Delimiter">);</span> <span class="Comment">// exception 1</span> @@ -442,9 +442,9 @@ if ('onhashchange' in window) { <span id="L378" class="LineNr">378 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <a href='031check_operands.cc.html#L64'>DISP8</a> || i == <a href='031check_operands.cc.html#L66'>DISP32</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// exception 2</span> <span id="L379" class="LineNr">379 </span> <span class="Normal">const</span> string& optype = <a href='031check_operands.cc.html#L72'>Operand_type_name</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L380" class="LineNr">380 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> > <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> -<span id="L381" class="LineNr">381 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L381" class="LineNr">381 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L382" class="LineNr">382 </span> <span class="Normal">else</span> -<span id="L383" class="LineNr">383 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L383" class="LineNr">383 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='031check_operands.cc.html#L278'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L384" class="LineNr">384 </span> <span class="Comment">// continue giving all errors for a single instruction</span> <span id="L385" class="LineNr">385 </span> <span class="Delimiter">}</span> <span id="L386" class="LineNr">386 </span> <span class="Comment">// ignore settings in any unused bits</span> @@ -452,12 +452,12 @@ if ('onhashchange' in window) { <span id="L388" class="LineNr">388 </span> <span id="L389" class="LineNr">389 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L389'>check_operand_metadata_present</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& type<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L390" class="LineNr">390 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> type<span class="Delimiter">))</span> -<span id="L391" class="LineNr">391 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): missing "</span> << type << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L391" class="LineNr">391 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">)</span> << <span class="Constant">"): missing "</span> << type << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L392" class="LineNr">392 </span><span class="Delimiter">}</span> <span id="L393" class="LineNr">393 </span> <span id="L394" class="LineNr">394 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L394'>check_operand_metadata_absent</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& type<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">,</span> <span class="Normal">const</span> string& msg<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L395" class="LineNr">395 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> type<span class="Delimiter">))</span> -<span id="L396" class="LineNr">396 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): unexpected "</span> << type << <span class="Constant">" operand ("</span> << msg << <span class="Constant">")</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L396" class="LineNr">396 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">)</span> << <span class="Constant">"): unexpected "</span> << type << <span class="Constant">" operand ("</span> << msg << <span class="Constant">")</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L397" class="LineNr">397 </span><span class="Delimiter">}</span> <span id="L398" class="LineNr">398 </span> <span id="L399" class="LineNr">399 </span><span class="Delimiter">:(scenarios transform)</span> @@ -520,21 +520,21 @@ if ('onhashchange' in window) { <span id="L456" class="LineNr">456 </span> <span id="L457" class="LineNr">457 </span><span class="Delimiter">:(code)</span> <span id="L458" class="LineNr">458 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L504'>check_operands_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L459" class="LineNr">459 </span> assert<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">);</span> +<span id="L459" class="LineNr">459 </span> assert<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">);</span> <span id="L460" class="LineNr">460 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L461" class="LineNr">461 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"opcode '0f' requires a second opcode</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L461" class="LineNr">461 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"opcode '0f' requires a second opcode</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L462" class="LineNr">462 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L463" class="LineNr">463 </span> <span class="Delimiter">}</span> <span id="L464" class="LineNr">464 </span> <a href='011run.cc.html#L123'>word</a> op = <a href='031check_operands.cc.html#L39'>preprocess_op</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> -<span id="L465" class="LineNr">465 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L466" class="LineNr">466 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"unknown 2-byte opcode '0f "</span> << op<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L465" class="LineNr">465 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L466" class="LineNr">466 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"unknown 2-byte opcode '0f "</span> << op<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L467" class="LineNr">467 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L468" class="LineNr">468 </span> <span class="Delimiter">}</span> <span id="L469" class="LineNr">469 </span> <a href='031check_operands.cc.html#L504'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L470" class="LineNr">470 </span><span class="Delimiter">}</span> <span id="L471" class="LineNr">471 </span> <span id="L472" class="LineNr">472 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L472'>check_operands_f3</a><span class="Delimiter">(</span><span class="Normal">const</span> line& <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L473" class="LineNr">473 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"no supported opcodes starting with f3</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L473" class="LineNr">473 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"no supported opcodes starting with f3</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L474" class="LineNr">474 </span><span class="Delimiter">}</span> <span id="L475" class="LineNr">475 </span> <span id="L476" class="LineNr">476 </span><span class="Delimiter">:(scenario check_missing_disp16_operand)</span> @@ -566,14 +566,14 @@ if ('onhashchange' in window) { <span id="L502" class="LineNr">502 </span> <span id="L503" class="LineNr">503 </span><span class="Delimiter">:(code)</span> <span id="L504" class="LineNr">504 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L504'>check_operands_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L505" class="LineNr">505 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><a href='031check_operands.cc.html#L486'>Permitted_operands_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L505" class="LineNr">505 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><a href='031check_operands.cc.html#L486'>Permitted_operands_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L506" class="LineNr">506 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>HAS<span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L62'>MODRM</a><span class="Delimiter">))</span> <span id="L507" class="LineNr">507 </span> <a href='031check_operands.cc.html#L342'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span id="L508" class="LineNr">508 </span> <a href='031check_operands.cc.html#L511'>compare_bitvector_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> CLEAR<span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L62'>MODRM</a><span class="Delimiter">),</span> op<span class="Delimiter">);</span> <span id="L509" class="LineNr">509 </span><span class="Delimiter">}</span> <span id="L510" class="LineNr">510 </span> <span id="L511" class="LineNr">511 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L511'>compare_bitvector_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> expected<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L512" class="LineNr">512 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>all_hex_bytes<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L293'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L512" class="LineNr">512 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L377'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L293'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> <span id="L513" class="LineNr">513 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L284'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L514" class="LineNr">514 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> <span id="L515" class="LineNr">515 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>bitvector == expected<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// all good with this instruction</span> @@ -582,9 +582,9 @@ if ('onhashchange' in window) { <span id="L518" class="LineNr">518 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> == <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// all good with this operand</span> <span id="L519" class="LineNr">519 </span> <span class="Normal">const</span> string& optype = <a href='031check_operands.cc.html#L72'>Operand_type_name</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L520" class="LineNr">520 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> > <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> -<span id="L521" class="LineNr">521 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L521" class="LineNr">521 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">)</span> << <span class="Constant">"): unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L522" class="LineNr">522 </span> <span class="Normal">else</span> -<span id="L523" class="LineNr">523 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L229'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L523" class="LineNr">523 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010---vm.cc.html#L337'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">)</span> << <span class="Constant">"): missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L524" class="LineNr">524 </span> <span class="Comment">// continue giving all errors for a single instruction</span> <span id="L525" class="LineNr">525 </span> <span class="Delimiter">}</span> <span id="L526" class="LineNr">526 </span> <span class="Comment">// ignore settings in any unused bits</span> diff --git a/html/subx/032check_operand_bounds.cc.html b/html/subx/032check_operand_bounds.cc.html index df91508e..757446f3 100644 --- a/html/subx/032check_operand_bounds.cc.html +++ b/html/subx/032check_operand_bounds.cc.html @@ -90,7 +90,7 @@ if ('onhashchange' in window) { <span id="L27" class="LineNr">27 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L28" class="LineNr">28 </span><span class="Delimiter">:(code)</span> <span id="L29" class="LineNr">29 </span><span class="Normal">void</span> check_operand_bounds<span class="Delimiter">(</span><span class="Normal">const</span> segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L30" class="LineNr">30 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- check operand bounds"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L30" class="LineNr">30 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- check operand bounds"</span> << end<span class="Delimiter">();</span> <span id="L31" class="LineNr">31 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L32" class="LineNr">32 </span> <span class="Normal">const</span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L33" class="LineNr">33 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <a href='031check_operands.cc.html#L297'>first_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> @@ -100,18 +100,18 @@ if ('onhashchange' in window) { <span id="L37" class="LineNr">37 </span><span class="Delimiter">}</span> <span id="L38" class="LineNr">38 </span> <span id="L39" class="LineNr">39 </span><span class="Normal">void</span> check_operand_bounds<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L40" class="LineNr">40 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>::iterator p = <a href='032check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='032check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L40" class="LineNr">40 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>::iterator p = <a href='032check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='032check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L41" class="LineNr">41 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_operand_metadata<span class="Delimiter">(</span>w<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L42" class="LineNr">42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_int<span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// later transforms are on their own to do their own bounds checking</span> -<span id="L43" class="LineNr">43 </span> <span class="Normal">int32_t</span> x = <a href='011run.cc.html#L324'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L42" class="LineNr">42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!looks_like_hex_int<span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// later transforms are on their own to do their own bounds checking</span> +<span id="L43" class="LineNr">43 </span> <span class="Normal">int32_t</span> x = <a href='011run.cc.html#L362'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L44" class="LineNr">44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>x >= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L45" class="LineNr">45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span>x<span class="Delimiter">)</span> >= p<span class="Delimiter">-></span>second<span class="Delimiter">)</span> -<span id="L46" class="LineNr">46 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' too large to fit in bitfield "</span> << p<span class="Delimiter">-></span>first << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L46" class="LineNr">46 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' too large to fit in bitfield "</span> << p<span class="Delimiter">-></span>first << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L47" class="LineNr">47 </span> <span class="Delimiter">}</span> <span id="L48" class="LineNr">48 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> <span id="L49" class="LineNr">49 </span> <span class="Comment">// hacky? assuming bound is a power of 2</span> <span id="L50" class="LineNr">50 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>x < -<span class="Constant">1</span>*<span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>p<span class="Delimiter">-></span>second/<span class="Constant">2</span><span class="Delimiter">))</span> -<span id="L51" class="LineNr">51 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' too large to fit in bitfield "</span> << p<span class="Delimiter">-></span>first << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L51" class="LineNr">51 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' too large to fit in bitfield "</span> << p<span class="Delimiter">-></span>first << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L52" class="LineNr">52 </span> <span class="Delimiter">}</span> <span id="L53" class="LineNr">53 </span> <span class="Delimiter">}</span> <span id="L54" class="LineNr">54 </span><span class="Delimiter">}</span> diff --git a/html/subx/034compute_segment_address.cc.html b/html/subx/034compute_segment_address.cc.html index d5111bef..e8820050 100644 --- a/html/subx/034compute_segment_address.cc.html +++ b/html/subx/034compute_segment_address.cc.html @@ -15,11 +15,11 @@ body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } +.cSpecial { color: #008000; } .traceContains { color: #008000; } .LineNr { color: #444444; } .Constant { color: #00a0a0; } .Delimiter { color: #800080; } -.Special { color: #c00000; } .Identifier { color: #c0a020; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } @@ -59,77 +59,144 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Start allowing us to not specify precise addresses for the start of each</span> -<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: segment.</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: This gives up a measure of control in placing code and data.</span> -<span id="L4" class="LineNr"> 4 </span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: segment address computation requires setting Mem_offset in test mode to what it'll be in run mode</span> -<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario segment_name)</span> -<span id="L7" class="LineNr"> 7 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L8" class="LineNr"> 8 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L9" class="LineNr"> 9 </span><span class="PreProc">0</span><span class="Constant">5</span>/add <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add 0x0d0c0b0a to EAX</span> -<span id="L10" class="LineNr">10 </span><span class="Comment"># code starts at 0x08048000 + p_offset, which is 0x54 for a single-segment binary</span> -<span id="L11" class="LineNr">11 </span><span class="traceContains">+load: 0x08048054 -> 05</span> -<span id="L12" class="LineNr">12 </span><span class="traceContains">+load: 0x08048055 -> 0a</span> -<span id="L13" class="LineNr">13 </span><span class="traceContains">+load: 0x08048056 -> 0b</span> -<span id="L14" class="LineNr">14 </span><span class="traceContains">+load: 0x08048057 -> 0c</span> -<span id="L15" class="LineNr">15 </span><span class="traceContains">+load: 0x08048058 -> 0d</span> -<span id="L16" class="LineNr">16 </span><span class="traceContains">+run: add imm32 0x0d0c0b0a to <a href='010---vm.cc.html#L23'>reg</a> <a href='010---vm.cc.html#L13'>EAX</a></span> -<span id="L17" class="LineNr">17 </span><span class="traceContains">+run: storing 0x0d0c0b0a</span> -<span id="L18" class="LineNr">18 </span> -<span id="L19" class="LineNr">19 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> -<span id="L20" class="LineNr">20 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L23'>compute_segment_starts</a><span class="Delimiter">);</span> -<span id="L21" class="LineNr">21 </span> -<span id="L22" class="LineNr">22 </span><span class="Delimiter">:(code)</span> -<span id="L23" class="LineNr">23 </span><span class="Normal">void</span> <a href='034compute_segment_address.cc.html#L23'>compute_segment_starts</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L24" class="LineNr">24 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- compute segment addresses"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L25" class="LineNr">25 </span> <span class="Normal">uint32_t</span> p_offset = <span class="Comment">/*</span><span class="Comment">size of ehdr</span><span class="Comment">*/</span><span class="Constant">0x34</span> + <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)</span>*<span class="Constant">0x20</span><span class="Comment">/*</span><span class="Comment">size of each phdr</span><span class="Comment">*/</span><span class="Delimiter">;</span> -<span id="L26" class="LineNr">26 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L27" class="LineNr">27 </span> segment& curr = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L28" class="LineNr">28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L29" class="LineNr">29 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a> = <a href='012elf.cc.html#L126'>CODE_START</a> + i*SEGMENT_SIZE + p_offset<span class="Delimiter">;</span> -<span id="L30" class="LineNr">30 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"segment "</span> << i << <span class="Constant">" begins at address 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << curr<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L31" class="LineNr">31 </span> <span class="Delimiter">}</span> -<span id="L32" class="LineNr">32 </span> p_offset += <a href='034compute_segment_address.cc.html#L37'>size_of</a><span class="Delimiter">(</span>curr<span class="Delimiter">);</span> -<span id="L33" class="LineNr">33 </span> assert<span class="Delimiter">(</span>p_offset < <a href='012elf.cc.html#L127'>SEGMENT_SIZE</a><span class="Delimiter">);</span> <span class="Comment">// for now we get less and less available space in each successive segment</span> -<span id="L34" class="LineNr">34 </span> <span class="Delimiter">}</span> -<span id="L35" class="LineNr">35 </span><span class="Delimiter">}</span> -<span id="L36" class="LineNr">36 </span> -<span id="L37" class="LineNr">37 </span><span class="Normal">uint32_t</span> <a href='034compute_segment_address.cc.html#L37'>size_of</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L38" class="LineNr">38 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L39" class="LineNr">39 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L40" class="LineNr">40 </span> sum += <a href='034compute_segment_address.cc.html#L45'>num_bytes</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> -<span id="L41" class="LineNr">41 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> -<span id="L42" class="LineNr">42 </span><span class="Delimiter">}</span> -<span id="L43" class="LineNr">43 </span> -<span id="L44" class="LineNr">44 </span><span class="Comment">// Assumes all bitfields are packed.</span> -<span id="L45" class="LineNr">45 </span><span class="Normal">uint32_t</span> <a href='034compute_segment_address.cc.html#L45'>num_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L46" class="LineNr">46 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L47" class="LineNr">47 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L48" class="LineNr">48 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L49" class="LineNr">49 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Comment">// only multi-byte operands</span> -<span id="L50" class="LineNr">50 </span> sum += <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L51" class="LineNr">51 </span> <span class="Comment">// End num_bytes(curr) Special-cases</span> -<span id="L52" class="LineNr">52 </span> <span class="Normal">else</span> -<span id="L53" class="LineNr">53 </span> sum++<span class="Delimiter">;</span> -<span id="L54" class="LineNr">54 </span> <span class="Delimiter">}</span> -<span id="L55" class="LineNr">55 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> -<span id="L56" class="LineNr">56 </span><span class="Delimiter">}</span> -<span id="L57" class="LineNr">57 </span> -<span id="L58" class="LineNr">58 </span><span class="Comment">//: Dependencies:</span> -<span id="L59" class="LineNr">59 </span><span class="Comment">//: - We'd like to compute segment addresses before setting up global variables,</span> -<span id="L60" class="LineNr">60 </span><span class="Comment">//: because computing addresses for global variables requires knowing where</span> -<span id="L61" class="LineNr">61 </span><span class="Comment">//: the data segment starts.</span> -<span id="L62" class="LineNr">62 </span><span class="Comment">//: - We'd like to finish expanding labels before computing segment addresses,</span> -<span id="L63" class="LineNr">63 </span><span class="Comment">//: because it would make computing the sizes of segments more self-contained</span> -<span id="L64" class="LineNr">64 </span><span class="Comment">//: (num_bytes).</span> -<span id="L65" class="LineNr">65 </span><span class="Comment">//:</span> -<span id="L66" class="LineNr">66 </span><span class="Comment">//: Decision: compute segment addresses before expanding labels, by being</span> -<span id="L67" class="LineNr">67 </span><span class="Comment">//: aware in this layer of certain operand types that will eventually occupy</span> -<span id="L68" class="LineNr">68 </span><span class="Comment">//: multiple bytes.</span> -<span id="L69" class="LineNr">69 </span><span class="Comment">//:</span> -<span id="L70" class="LineNr">70 </span><span class="Comment">//: The layer to expand labels later hooks into num_bytes() to teach this</span> -<span id="L71" class="LineNr">71 </span><span class="Comment">//: layer that labels occupy zero space in the binary.</span> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Start allowing us to not specify precise addresses for the start of each</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: segment.</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: This gives up a measure of control in placing code and data.</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(scenario segment_name)</span> +<span id="L6" class="LineNr"> 6 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L7" class="LineNr"> 7 </span><span class="PreProc">0</span><span class="Constant">5</span>/add <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add 0x0d0c0b0a to EAX</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># code starts at 0x08048000 + p_offset, which is 0x54 for a single-segment binary</span> +<span id="L9" class="LineNr"> 9 </span><span class="traceContains">+load: 0x08048054 -> 05</span> +<span id="L10" class="LineNr"> 10 </span><span class="traceContains">+load: 0x08048055 -> 0a</span> +<span id="L11" class="LineNr"> 11 </span><span class="traceContains">+load: 0x08048056 -> 0b</span> +<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+load: 0x08048057 -> 0c</span> +<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+load: 0x08048058 -> 0d</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: add imm32 0x0d0c0b0a to <a href='010---vm.cc.html#L23'>reg</a> <a href='010---vm.cc.html#L13'>EAX</a></span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: storing 0x0d0c0b0a</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="Comment">//: Update the parser to handle non-numeric segment name.</span> +<span id="L18" class="LineNr"> 18 </span><span class="Comment">//:</span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment">//: We'll also support repeated segments with non-numeric names.</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment">//: When we encounter a new reference to an existing segment we'll *prepend*</span> +<span id="L21" class="LineNr"> 21 </span><span class="Comment">//: the new data to existing data for the segment.</span> +<span id="L22" class="LineNr"> 22 </span> +<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L24" class="LineNr"> 24 </span>map<<span class="Comment">/*</span><span class="Comment"><a href='010---vm.cc.html#L336'>name</a></span><span class="Comment">*/</span>string<span class="Delimiter">,</span> <span class="Normal">int</span>> <a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span><span class="Normal">bool</span> <a href='034compute_segment_address.cc.html#L25'>Currently_parsing_named_segment</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// global to permit cross-layer communication</span> +<span id="L26" class="LineNr"> 26 </span><span class="Normal">int</span> <a href='034compute_segment_address.cc.html#L26'>Currently_parsing_segment_index</a> = -<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// global to permit cross-layer communication</span> +<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L28" class="LineNr"> 28 </span><a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span><a href='034compute_segment_address.cc.html#L25'>Currently_parsing_named_segment</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L30" class="LineNr"> 30 </span><a href='034compute_segment_address.cc.html#L26'>Currently_parsing_segment_index</a> = -<span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L31" class="LineNr"> 31 </span> +<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">:(before "End Segment Parsing Special-cases(segment_title)")</span> +<span id="L33" class="LineNr"> 33 </span><span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span>segment_title<span class="Delimiter">,</span> <span class="Constant">"0x"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L34" class="LineNr"> 34 </span> <a href='034compute_segment_address.cc.html#L25'>Currently_parsing_named_segment</a> =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">,</span> segment_title<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L36" class="LineNr"> 36 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"new segment '"</span> << segment_title << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>segment_title == <span class="Constant">"code"</span><span class="Delimiter">)</span> +<span id="L38" class="LineNr"> 38 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">,</span> segment_title<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>segment_title == <span class="Constant">"data"</span><span class="Delimiter">)</span> +<span id="L40" class="LineNr"> 40 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">,</span> segment_title<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Normal">else</span> +<span id="L42" class="LineNr"> 42 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">,</span> segment_title<span class="Delimiter">,</span> max<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)));</span> +<span id="L43" class="LineNr"> 43 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>segment<span class="Delimiter">());</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">}</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L46" class="LineNr"> 46 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"prepending to segment '"</span> << segment_title << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Delimiter">}</span> +<span id="L48" class="LineNr"> 48 </span> <a href='034compute_segment_address.cc.html#L26'>Currently_parsing_segment_index</a> = get<span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L24'>Segment_index</a><span class="Delimiter">,</span> segment_title<span class="Delimiter">);</span> +<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">}</span> +<span id="L50" class="LineNr"> 50 </span> +<span id="L51" class="LineNr"> 51 </span><span class="Delimiter">:(before "End flush(p, lines) Special-cases")</span> +<span id="L52" class="LineNr"> 52 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L25'>Currently_parsing_named_segment</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || <a href='034compute_segment_address.cc.html#L26'>Currently_parsing_segment_index</a> < <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"input does not start with a '==' section header</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span> +<span id="L57" class="LineNr"> 57 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing to segment"</span> << end<span class="Delimiter">();</span> +<span id="L58" class="LineNr"> 58 </span> vector<line>& curr_segment_data = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L26'>Currently_parsing_segment_index</a><span class="Delimiter">).</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">;</span> +<span id="L59" class="LineNr"> 59 </span> curr_segment_data<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>curr_segment_data<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> <a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> <a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L60" class="LineNr"> 60 </span> <a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> +<span id="L61" class="LineNr"> 61 </span> <a href='034compute_segment_address.cc.html#L25'>Currently_parsing_named_segment</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L62" class="LineNr"> 62 </span> <a href='034compute_segment_address.cc.html#L26'>Currently_parsing_segment_index</a> = -<span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L64" class="LineNr"> 64 </span><span class="Delimiter">}</span> +<span id="L65" class="LineNr"> 65 </span> +<span id="L66" class="LineNr"> 66 </span><span class="Delimiter">:(scenario repeated_segment_merges_data)</span> +<span id="L67" class="LineNr"> 67 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L68" class="LineNr"> 68 </span><span class="PreProc">0</span><span class="Constant">5</span>/add <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add 0x0d0c0b0a to EAX</span> +<span id="L69" class="LineNr"> 69 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L70" class="LineNr"> 70 </span>2d/subtract <span class="Constant">0xddccbbaa</span>/imm32 <span class="Comment"># subtract 0xddccbbaa from EAX</span> +<span id="L71" class="LineNr"> 71 </span><span class="traceContains">+parse: new segment 'code'</span> +<span id="L72" class="LineNr"> 72 </span><span class="traceContains">+parse: prepending to segment 'code'</span> +<span id="L73" class="LineNr"> 73 </span><span class="traceContains">+load: 0x08048054 -> 2d</span> +<span id="L74" class="LineNr"> 74 </span><span class="traceContains">+load: 0x08048055 -> aa</span> +<span id="L75" class="LineNr"> 75 </span><span class="traceContains">+load: 0x08048056 -> bb</span> +<span id="L76" class="LineNr"> 76 </span><span class="traceContains">+load: 0x08048057 -> cc</span> +<span id="L77" class="LineNr"> 77 </span><span class="traceContains">+load: 0x08048058 -> dd</span> +<span id="L78" class="LineNr"> 78 </span><span class="traceContains">+load: 0x08048059 -> 05</span> +<span id="L79" class="LineNr"> 79 </span><span class="traceContains">+load: 0x0804805a -> 0a</span> +<span id="L80" class="LineNr"> 80 </span><span class="traceContains">+load: 0x0804805b -> 0b</span> +<span id="L81" class="LineNr"> 81 </span><span class="traceContains">+load: 0x0804805c -> 0c</span> +<span id="L82" class="LineNr"> 82 </span><span class="traceContains">+load: 0x0804805d -> 0d</span> +<span id="L83" class="LineNr"> 83 </span> +<span id="L84" class="LineNr"> 84 </span><span class="Comment">//: compute segment address</span> +<span id="L85" class="LineNr"> 85 </span> +<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> +<span id="L87" class="LineNr"> 87 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='034compute_segment_address.cc.html#L90'>compute_segment_starts</a><span class="Delimiter">);</span> +<span id="L88" class="LineNr"> 88 </span> +<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">:(code)</span> +<span id="L90" class="LineNr"> 90 </span><span class="Normal">void</span> <a href='034compute_segment_address.cc.html#L90'>compute_segment_starts</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L91" class="LineNr"> 91 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- compute segment addresses"</span> << end<span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">uint32_t</span> p_offset = <span class="Comment">/*</span><span class="Comment">size of ehdr</span><span class="Comment">*/</span><span class="Constant">0x34</span> + <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)</span>*<span class="Constant">0x20</span><span class="Comment">/*</span><span class="Comment">size of each phdr</span><span class="Comment">*/</span><span class="Delimiter">;</span> +<span id="L93" class="LineNr"> 93 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L94" class="LineNr"> 94 </span> segment& curr = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>start == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L96" class="LineNr"> 96 </span> curr<span class="Delimiter">.</span>start = <a href='012elf.cc.html#L136'>CODE_START</a> + i*SEGMENT_SIZE + p_offset<span class="Delimiter">;</span> +<span id="L97" class="LineNr"> 97 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"segment "</span> << i << <span class="Constant">" begins at address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << curr<span class="Delimiter">.</span>start << end<span class="Delimiter">();</span> +<span id="L98" class="LineNr"> 98 </span> <span class="Delimiter">}</span> +<span id="L99" class="LineNr"> 99 </span> p_offset += <a href='034compute_segment_address.cc.html#L104'>size_of</a><span class="Delimiter">(</span>curr<span class="Delimiter">);</span> +<span id="L100" class="LineNr">100 </span> assert<span class="Delimiter">(</span>p_offset < <a href='012elf.cc.html#L135'>SEGMENT_SIZE</a><span class="Delimiter">);</span> <span class="Comment">// for now we get less and less available space in each successive segment</span> +<span id="L101" class="LineNr">101 </span> <span class="Delimiter">}</span> +<span id="L102" class="LineNr">102 </span><span class="Delimiter">}</span> +<span id="L103" class="LineNr">103 </span> +<span id="L104" class="LineNr">104 </span><span class="Normal">uint32_t</span> <a href='034compute_segment_address.cc.html#L104'>size_of</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L105" class="LineNr">105 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L106" class="LineNr">106 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L107" class="LineNr">107 </span> sum += <a href='034compute_segment_address.cc.html#L112'>num_bytes</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L108" class="LineNr">108 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> +<span id="L109" class="LineNr">109 </span><span class="Delimiter">}</span> +<span id="L110" class="LineNr">110 </span> +<span id="L111" class="LineNr">111 </span><span class="Comment">// Assumes all bitfields are packed.</span> +<span id="L112" class="LineNr">112 </span><span class="Normal">uint32_t</span> <a href='034compute_segment_address.cc.html#L112'>num_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L113" class="LineNr">113 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L115" class="LineNr">115 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L116" class="LineNr">116 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Comment">// only multi-byte operands</span> +<span id="L117" class="LineNr">117 </span> sum += <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L118" class="LineNr">118 </span> <span class="Comment">// End num_bytes(curr) Special-cases</span> +<span id="L119" class="LineNr">119 </span> <span class="Normal">else</span> +<span id="L120" class="LineNr">120 </span> sum++<span class="Delimiter">;</span> +<span id="L121" class="LineNr">121 </span> <span class="Delimiter">}</span> +<span id="L122" class="LineNr">122 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> +<span id="L123" class="LineNr">123 </span><span class="Delimiter">}</span> +<span id="L124" class="LineNr">124 </span> +<span id="L125" class="LineNr">125 </span><span class="Comment">//: Dependencies:</span> +<span id="L126" class="LineNr">126 </span><span class="Comment">//: - We'd like to compute segment addresses before setting up global variables,</span> +<span id="L127" class="LineNr">127 </span><span class="Comment">//: because computing addresses for global variables requires knowing where</span> +<span id="L128" class="LineNr">128 </span><span class="Comment">//: the data segment starts.</span> +<span id="L129" class="LineNr">129 </span><span class="Comment">//: - We'd like to finish expanding labels before computing segment addresses,</span> +<span id="L130" class="LineNr">130 </span><span class="Comment">//: because it would make computing the sizes of segments more self-contained</span> +<span id="L131" class="LineNr">131 </span><span class="Comment">//: (num_bytes).</span> +<span id="L132" class="LineNr">132 </span><span class="Comment">//:</span> +<span id="L133" class="LineNr">133 </span><span class="Comment">//: Decision: compute segment addresses before expanding labels, by being</span> +<span id="L134" class="LineNr">134 </span><span class="Comment">//: aware in this layer of certain operand types that will eventually occupy</span> +<span id="L135" class="LineNr">135 </span><span class="Comment">//: multiple bytes.</span> +<span id="L136" class="LineNr">136 </span><span class="Comment">//:</span> +<span id="L137" class="LineNr">137 </span><span class="Comment">//: The layer to expand labels later hooks into num_bytes() to teach this</span> +<span id="L138" class="LineNr">138 </span><span class="Comment">//: layer that labels occupy zero space in the binary.</span> </pre> </body> </html> diff --git a/html/subx/035labels.cc.html b/html/subx/035labels.cc.html index 918c14c7..8774406e 100644 --- a/html/subx/035labels.cc.html +++ b/html/subx/035labels.cc.html @@ -15,7 +15,7 @@ body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } -.traceContains { color: #008000; } +.cSpecial { color: #008000; } .PreProc { color: #800080; } .LineNr { color: #444444; } .Constant { color: #00a0a0; } @@ -25,7 +25,7 @@ a:hover { text-decoration: underline; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } -.cSpecial { color: #008000; } +.traceContains { color: #008000; } --> </style> @@ -80,231 +80,262 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr"> 18 </span><span class="Comment">//: be a single character long. 'a' is not a hex number, it's a variable.</span> <span id="L19" class="LineNr"> 19 </span><span class="Comment">//: Later layers may add more conventions partitioning the space of names. But</span> <span id="L20" class="LineNr"> 20 </span><span class="Comment">//: the above rules will remain inviolate.</span> -<span id="L21" class="LineNr"> 21 </span><span class="Normal">void</span> <a href='035labels.cc.html#L21'>check_valid_name</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L22" class="LineNr"> 22 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L23" class="LineNr"> 23 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"empty name!</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L24" class="LineNr"> 24 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L25" class="LineNr"> 25 </span> <span class="Delimiter">}</span> -<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span><span class="Delimiter">)</span> -<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' starts with '-', which can be confused with a negative number; use a different <a href='010---vm.cc.html#L228'>name</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">)</span> == <span class="Constant">"0x"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L29" class="LineNr"> 29 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' looks like a hex number; use a different <a href='010---vm.cc.html#L228'>name</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L31" class="LineNr"> 31 </span> <span class="Delimiter">}</span> -<span id="L32" class="LineNr"> 32 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isdigit<span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> -<span id="L33" class="LineNr"> 33 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' starts with a digit, and so can be confused with a negative number; use a different name.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L34" class="LineNr"> 34 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">)</span> == <span class="Constant">2</span><span class="Delimiter">)</span> -<span id="L35" class="LineNr"> 35 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' is two characters long which can look like raw hex bytes at a glance; use a different <a href='010---vm.cc.html#L228'>name</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L36" class="LineNr"> 36 </span><span class="Delimiter">}</span> -<span id="L37" class="LineNr"> 37 </span> -<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(scenarios transform)</span> -<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(scenario map_label)</span> -<span id="L40" class="LineNr"> 40 </span>== <span class="Constant">0x1</span> -<span id="L41" class="LineNr"> 41 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L42" class="LineNr"> 42 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L44" class="LineNr"> 44 </span><span class="Normal">loop</span>: -<span id="L45" class="LineNr"> 45 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> -<span id="L46" class="LineNr"> 46 </span><span class="traceContains">+transform: label 'loop' is at address 1</span> -<span id="L47" class="LineNr"> 47 </span> -<span id="L48" class="LineNr"> 48 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> -<span id="L49" class="LineNr"> 49 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='035labels.cc.html#L51'>rewrite_labels</a><span class="Delimiter">);</span> -<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">:(code)</span> -<span id="L51" class="LineNr"> 51 </span><span class="Normal">void</span> <a href='035labels.cc.html#L51'>rewrite_labels</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L52" class="LineNr"> 52 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite labels"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L54" class="LineNr"> 54 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L55" class="LineNr"> 55 </span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>> byte_index<span class="Delimiter">;</span> <span class="Comment">// values are unsigned, but we're going to do subtractions on them so they need to fit in 31 bits</span> -<span id="L56" class="LineNr"> 56 </span> <a href='035labels.cc.html#L63'>compute_byte_indices_for_labels</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> byte_index<span class="Delimiter">);</span> -<span id="L57" class="LineNr"> 57 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L58" class="LineNr"> 58 </span> <a href='035labels.cc.html#L110'>drop_labels</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">);</span> -<span id="L59" class="LineNr"> 59 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L60" class="LineNr"> 60 </span> <a href='035labels.cc.html#L122'>replace_labels_with_displacements</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> byte_index<span class="Delimiter">);</span> -<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">}</span> -<span id="L62" class="LineNr"> 62 </span> -<span id="L63" class="LineNr"> 63 </span><span class="Normal">void</span> <a href='035labels.cc.html#L63'>compute_byte_indices_for_labels</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>>& byte_index<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L64" class="LineNr"> 64 </span> <span class="Normal">int</span> current_byte = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L65" class="LineNr"> 65 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L66" class="LineNr"> 66 </span> <span class="Normal">const</span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L67" class="LineNr"> 67 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L68" class="LineNr"> 68 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L69" class="LineNr"> 69 </span> <span class="Comment">// hack: if we have any operand metadata left after previous transforms,</span> -<span id="L70" class="LineNr"> 70 </span> <span class="Comment">// deduce its size</span> -<span id="L71" class="LineNr"> 71 </span> <span class="Comment">// Maybe we should just move this transform to before instruction</span> -<span id="L72" class="LineNr"> 72 </span> <span class="Comment">// packing, and deduce the size of *all* operands. But then we'll also</span> -<span id="L73" class="LineNr"> 73 </span> <span class="Comment">// have to deal with bitfields.</span> -<span id="L74" class="LineNr"> 74 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L75" class="LineNr"> 75 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">)</span> -<span id="L76" class="LineNr"> 76 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': don't use ':' when jumping to labels</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> -<span id="L77" class="LineNr"> 77 </span> current_byte += <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">}</span> -<span id="L79" class="LineNr"> 79 </span> <span class="Comment">// automatically handle /disp8 and /imm8 here</span> -<span id="L80" class="LineNr"> 80 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L81" class="LineNr"> 81 </span> ++current_byte<span class="Delimiter">;</span> -<span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span> -<span id="L83" class="LineNr"> 83 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L84" class="LineNr"> 84 </span> string label = <a href='035labels.cc.html#L166'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> -<span id="L85" class="LineNr"> 85 </span> <span class="Comment">// ensure labels look sufficiently different from raw hex</span> -<span id="L86" class="LineNr"> 86 </span> <a href='035labels.cc.html#L21'>check_valid_name</a><span class="Delimiter">(</span>label<span class="Delimiter">);</span> -<span id="L87" class="LineNr"> 87 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L88" class="LineNr"> 88 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L384'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> -<span id="L89" class="LineNr"> 89 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': label definition (':') not allowed in operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L90" class="LineNr"> 90 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> -<span id="L91" class="LineNr"> 91 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': labels can only be the first <a href='011run.cc.html#L123'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L92" class="LineNr"> 92 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='035labels.cc.html#L103'>Dump_map</a><span class="Delimiter">)</span> -<span id="L93" class="LineNr"> 93 </span> cerr << <span class="Constant">"0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << <span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a> + current_byte<span class="Delimiter">)</span> << <span class="Constant">' '</span> << label << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L94" class="LineNr"> 94 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>byte_index<span class="Delimiter">,</span> label<span class="Delimiter">,</span> current_byte<span class="Delimiter">);</span> -<span id="L95" class="LineNr"> 95 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"label '"</span> << label << <span class="Constant">"' is at address "</span> << <span class="Delimiter">(</span>current_byte+code<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L96" class="LineNr"> 96 </span> <span class="Comment">// no modifying current_byte; label definitions won't be in the final binary</span> -<span id="L97" class="LineNr"> 97 </span> <span class="Delimiter">}</span> -<span id="L98" class="LineNr"> 98 </span> <span class="Delimiter">}</span> -<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span> -<span id="L100" class="LineNr">100 </span><span class="Delimiter">}</span> -<span id="L101" class="LineNr">101 </span> -<span id="L102" class="LineNr">102 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L103" class="LineNr">103 </span><span class="Normal">bool</span> <a href='035labels.cc.html#L103'>Dump_map</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// currently used only by 'subx translate'</span> -<span id="L104" class="LineNr">104 </span><span class="Delimiter">:(before "End Commandline Options")</span> -<span id="L105" class="LineNr">105 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>*arg<span class="Delimiter">,</span> <span class="Constant">"--map"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L106" class="LineNr">106 </span> <a href='035labels.cc.html#L103'>Dump_map</a> =<span class="Constant"> true</span><span class="Delimiter">;</span> -<span id="L107" class="LineNr">107 </span><span class="Delimiter">}</span> -<span id="L108" class="LineNr">108 </span> -<span id="L109" class="LineNr">109 </span><span class="Delimiter">:(code)</span> -<span id="L110" class="LineNr">110 </span><span class="Normal">void</span> <a href='035labels.cc.html#L110'>drop_labels</a><span class="Delimiter">(</span>segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L111" class="LineNr">111 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L112" class="LineNr">112 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L113" class="LineNr">113 </span> vector<word>::iterator new_end = remove_if<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">(),</span> <a href='035labels.cc.html#L118'>is_label</a><span class="Delimiter">);</span> -<span id="L114" class="LineNr">114 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>erase<span class="Delimiter">(</span>new_end<span class="Delimiter">,</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">());</span> -<span id="L115" class="LineNr">115 </span> <span class="Delimiter">}</span> -<span id="L116" class="LineNr">116 </span><span class="Delimiter">}</span> -<span id="L117" class="LineNr">117 </span> -<span id="L118" class="LineNr">118 </span><span class="Normal">bool</span> <a href='035labels.cc.html#L118'>is_label</a><span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L119" class="LineNr">119 </span> <span class="Identifier">return</span> *w<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">;</span> -<span id="L120" class="LineNr">120 </span><span class="Delimiter">}</span> -<span id="L121" class="LineNr">121 </span> -<span id="L122" class="LineNr">122 </span><span class="Normal">void</span> <a href='035labels.cc.html#L122'>replace_labels_with_displacements</a><span class="Delimiter">(</span>segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>>& byte_index<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L123" class="LineNr">123 </span> <span class="Normal">int32_t</span> byte_index_next_instruction_starts_at = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L124" class="LineNr">124 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L125" class="LineNr">125 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L126" class="LineNr">126 </span> byte_index_next_instruction_starts_at += <a href='034compute_segment_address.cc.html#L45'>num_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> -<span id="L127" class="LineNr">127 </span> <a href='011run.cc.html#L117'>line</a> new_inst<span class="Delimiter">;</span> -<span id="L128" class="LineNr">128 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L129" class="LineNr">129 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L130" class="LineNr">130 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span>byte_index<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L131" class="LineNr">131 </span> <span class="Normal">int32_t</span> displacement = <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>get<span class="Delimiter">(</span>byte_index<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> - byte_index_next_instruction_starts_at<span class="Delimiter">;</span> -<span id="L132" class="LineNr">132 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L133" class="LineNr">133 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>displacement > <span class="Constant">0xff</span> || displacement < -<span class="Constant">0x7f</span><span class="Delimiter">)</span> -<span id="L134" class="LineNr">134 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': label too far away for displacement "</span> << std::hex << displacement << <span class="Constant">" to fit in 8 bits</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L135" class="LineNr">135 </span> <span class="Normal">else</span> -<span id="L136" class="LineNr">136 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> displacement<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L137" class="LineNr">137 </span> <span class="Delimiter">}</span> -<span id="L138" class="LineNr">138 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L139" class="LineNr">139 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>displacement > <span class="Constant">0xffff</span> || displacement < -<span class="Constant">0x7fff</span><span class="Delimiter">)</span> -<span id="L140" class="LineNr">140 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': label too far away for displacement "</span> << std::hex << displacement << <span class="Constant">" to fit in 16 bits</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L141" class="LineNr">141 </span> <span class="Normal">else</span> -<span id="L142" class="LineNr">142 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> displacement<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">);</span> -<span id="L143" class="LineNr">143 </span> <span class="Delimiter">}</span> -<span id="L144" class="LineNr">144 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L145" class="LineNr">145 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> displacement<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> -<span id="L146" class="LineNr">146 </span> <span class="Delimiter">}</span> -<span id="L147" class="LineNr">147 </span> <span class="Delimiter">}</span> -<span id="L148" class="LineNr">148 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L149" class="LineNr">149 </span> new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span> -<span id="L150" class="LineNr">150 </span> <span class="Delimiter">}</span> -<span id="L151" class="LineNr">151 </span> <span class="Delimiter">}</span> -<span id="L152" class="LineNr">152 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> -<span id="L153" class="LineNr">153 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L209'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L154" class="LineNr">154 </span> <span class="Delimiter">}</span> -<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span> -<span id="L156" class="LineNr">156 </span> -<span id="L157" class="LineNr">157 </span>string <a href='035labels.cc.html#L157'>data_to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L158" class="LineNr">158 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L159" class="LineNr">159 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L160" class="LineNr">160 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> -<span id="L161" class="LineNr">161 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L162" class="LineNr">162 </span> <span class="Delimiter">}</span> -<span id="L163" class="LineNr">163 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L164" class="LineNr">164 </span><span class="Delimiter">}</span> -<span id="L165" class="LineNr">165 </span> -<span id="L166" class="LineNr">166 </span>string <a href='035labels.cc.html#L166'>drop_last</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L167" class="LineNr">167 </span> <span class="Identifier">return</span> string<span class="Delimiter">(</span>s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> --s<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">());</span> -<span id="L168" class="LineNr">168 </span><span class="Delimiter">}</span> -<span id="L169" class="LineNr">169 </span> -<span id="L170" class="LineNr">170 </span><span class="Comment">//: Label definitions must be the first word on a line. No jumping inside</span> -<span id="L171" class="LineNr">171 </span><span class="Comment">//: instructions.</span> -<span id="L172" class="LineNr">172 </span><span class="Comment">//: They should also be the only word on a line.</span> -<span id="L173" class="LineNr">173 </span><span class="Comment">//: However, you can absolutely have multiple labels map to the same address,</span> -<span id="L174" class="LineNr">174 </span><span class="Comment">//: as long as they're on separate lines.</span> -<span id="L175" class="LineNr">175 </span> -<span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario multiple_labels_at)</span> -<span id="L177" class="LineNr">177 </span>== <span class="Constant">0x1</span> -<span id="L178" class="LineNr">178 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L179" class="LineNr">179 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L180" class="LineNr">180 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L181" class="LineNr">181 </span><span class="Comment"># address 1</span> -<span id="L182" class="LineNr">182 </span><span class="Normal">loop</span>: -<span id="L183" class="LineNr">183 </span> $loop2: -<span id="L184" class="LineNr">184 </span><span class="Comment"># address 1 (labels take up no space)</span> -<span id="L185" class="LineNr">185 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> -<span id="L186" class="LineNr">186 </span><span class="Comment"># address 6</span> -<span id="L187" class="LineNr">187 </span> eb $loop2/disp8 -<span id="L188" class="LineNr">188 </span><span class="Comment"># address 8</span> -<span id="L189" class="LineNr">189 </span> eb $loop3/disp8 -<span id="L190" class="LineNr">190 </span><span class="Comment"># address 0xa</span> -<span id="L191" class="LineNr">191 </span> $loop3: -<span id="L192" class="LineNr">192 </span><span class="traceContains">+transform: label 'loop' is at address 1</span> -<span id="L193" class="LineNr">193 </span><span class="traceContains">+transform: label '$loop2' is at address 1</span> -<span id="L194" class="LineNr">194 </span><span class="traceContains">+transform: label '$loop3' is at address a</span> -<span id="L195" class="LineNr">195 </span><span class="Comment"># first jump is to -7</span> -<span id="L196" class="LineNr">196 </span><span class="traceContains">+transform: instruction after <a href='011run.cc.html#L209'>transform</a>: 'eb f9'</span> -<span id="L197" class="LineNr">197 </span><span class="Comment"># second jump is to 0 (fall through)</span> -<span id="L198" class="LineNr">198 </span><span class="traceContains">+transform: instruction after <a href='011run.cc.html#L209'>transform</a>: 'eb 00'</span> -<span id="L199" class="LineNr">199 </span> -<span id="L200" class="LineNr">200 </span><span class="Delimiter">:(scenario label_too_short)</span> -<span id="L201" class="LineNr">201 </span><span class="Special">% Hide_errors = true;</span> -<span id="L202" class="LineNr">202 </span>== <span class="Constant">0x1</span> -<span id="L203" class="LineNr">203 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L204" class="LineNr">204 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L205" class="LineNr">205 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L206" class="LineNr">206 </span><span class="Normal">xz</span>: -<span id="L207" class="LineNr">207 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> -<span id="L208" class="LineNr">208 </span><span class="traceContains">+error: 'xz' is two characters long which can look like raw hex bytes at a glance; use a different <a href='010---vm.cc.html#L228'>name</a></span> -<span id="L209" class="LineNr">209 </span> -<span id="L210" class="LineNr">210 </span><span class="Delimiter">:(scenario label_hex)</span> -<span id="L211" class="LineNr">211 </span><span class="Special">% Hide_errors = true;</span> -<span id="L212" class="LineNr">212 </span>== <span class="Constant">0x1</span> -<span id="L213" class="LineNr">213 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L214" class="LineNr">214 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L215" class="LineNr">215 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L216" class="LineNr">216 </span><span class="Constant">0xab</span>: +<span id="L21" class="LineNr"> 21 </span> +<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End looks_like_hex_int(s) Detectors")</span> +<span id="L23" class="LineNr"> 23 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">)</span> == <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L24" class="LineNr"> 24 </span> +<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L26" class="LineNr"> 26 </span><span class="Delimiter">:(scenario pack_immediate_ignores_single_byte_nondigit_operand)</span> +<span id="L27" class="LineNr"> 27 </span><span class="Special">% Hide_errors = true;</span> +<span id="L28" class="LineNr"> 28 </span>== <span class="Constant">0x1</span> +<span id="L29" class="LineNr"> 29 </span>b9/copy a/imm32 <span class="Comment"># copy to ECX</span> +<span id="L30" class="LineNr"> 30 </span><span class="traceContains">+transform: packing instruction 'b9/copy a/imm32'</span> +<span id="L31" class="LineNr"> 31 </span><span class="Comment"># no change (we're just not printing metadata to the trace)</span> +<span id="L32" class="LineNr"> 32 </span><span class="traceContains">+transform: instruction after packing: 'b9 a'</span> +<span id="L33" class="LineNr"> 33 </span> +<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">:(scenario pack_immediate_ignores_3_hex_digit_operand)</span> +<span id="L35" class="LineNr"> 35 </span><span class="Special">% Hide_errors = true;</span> +<span id="L36" class="LineNr"> 36 </span>== <span class="Constant">0x1</span> +<span id="L37" class="LineNr"> 37 </span>b9/copy aaa/imm32 <span class="Comment"># copy to ECX</span> +<span id="L38" class="LineNr"> 38 </span><span class="traceContains">+transform: packing instruction 'b9/copy aaa/imm32'</span> +<span id="L39" class="LineNr"> 39 </span><span class="Comment"># no change (we're just not printing metadata to the trace)</span> +<span id="L40" class="LineNr"> 40 </span><span class="traceContains">+transform: instruction after packing: 'b9 aaa'</span> +<span id="L41" class="LineNr"> 41 </span> +<span id="L42" class="LineNr"> 42 </span><span class="Delimiter">:(scenario pack_immediate_ignores_non_hex_operand)</span> +<span id="L43" class="LineNr"> 43 </span><span class="Special">% Hide_errors = true;</span> +<span id="L44" class="LineNr"> 44 </span>== <span class="Constant">0x1</span> +<span id="L45" class="LineNr"> 45 </span>b9/copy xxx/imm32 <span class="Comment"># copy to ECX</span> +<span id="L46" class="LineNr"> 46 </span><span class="traceContains">+transform: packing instruction 'b9/copy xxx/imm32'</span> +<span id="L47" class="LineNr"> 47 </span><span class="Comment"># no change (we're just not printing metadata to the trace)</span> +<span id="L48" class="LineNr"> 48 </span><span class="traceContains">+transform: instruction after packing: 'b9 xxx'</span> +<span id="L49" class="LineNr"> 49 </span> +<span id="L50" class="LineNr"> 50 </span><span class="Comment">//: a helper we'll find handy later</span> +<span id="L51" class="LineNr"> 51 </span><span class="Delimiter">:(code)</span> +<span id="L52" class="LineNr"> 52 </span><span class="Normal">void</span> <a href='035labels.cc.html#L52'>check_valid_name</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"empty name!</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span><span class="Delimiter">)</span> +<span id="L58" class="LineNr"> 58 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' starts with '-', which can be confused with a negative number; use a different <a href='010---vm.cc.html#L336'>name</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">)</span> == <span class="Constant">"0x"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L60" class="LineNr"> 60 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' looks like a hex number; use a different <a href='010---vm.cc.html#L336'>name</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L62" class="LineNr"> 62 </span> <span class="Delimiter">}</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isdigit<span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> +<span id="L64" class="LineNr"> 64 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' starts with a digit, and so can be confused with a negative number; use a different name.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">)</span> == <span class="Constant">2</span><span class="Delimiter">)</span> +<span id="L66" class="LineNr"> 66 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << s << <span class="Constant">"' is two characters long which can look like raw hex bytes at a glance; use a different <a href='010---vm.cc.html#L336'>name</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L67" class="LineNr"> 67 </span><span class="Delimiter">}</span> +<span id="L68" class="LineNr"> 68 </span> +<span id="L69" class="LineNr"> 69 </span><span class="Comment">//: Now that that's done, let's start using names as labels.</span> +<span id="L70" class="LineNr"> 70 </span> +<span id="L71" class="LineNr"> 71 </span><span class="Delimiter">:(scenario map_label)</span> +<span id="L72" class="LineNr"> 72 </span>== <span class="Constant">0x1</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L76" class="LineNr"> 76 </span><span class="Normal">loop</span>: +<span id="L77" class="LineNr"> 77 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> +<span id="L78" class="LineNr"> 78 </span><span class="traceContains">+transform: label 'loop' is at address 1</span> +<span id="L79" class="LineNr"> 79 </span> +<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> +<span id="L81" class="LineNr"> 81 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='035labels.cc.html#L83'>rewrite_labels</a><span class="Delimiter">);</span> +<span id="L82" class="LineNr"> 82 </span><span class="Delimiter">:(code)</span> +<span id="L83" class="LineNr"> 83 </span><span class="Normal">void</span> <a href='035labels.cc.html#L83'>rewrite_labels</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite labels"</span> << end<span class="Delimiter">();</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L86" class="LineNr"> 86 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L87" class="LineNr"> 87 </span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>> byte_index<span class="Delimiter">;</span> <span class="Comment">// values are unsigned, but we're going to do subtractions on them so they need to fit in 31 bits</span> +<span id="L88" class="LineNr"> 88 </span> <a href='035labels.cc.html#L95'>compute_byte_indices_for_labels</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> byte_index<span class="Delimiter">);</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L90" class="LineNr"> 90 </span> <a href='035labels.cc.html#L142'>drop_labels</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">);</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L92" class="LineNr"> 92 </span> <a href='035labels.cc.html#L154'>replace_labels_with_displacements</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> byte_index<span class="Delimiter">);</span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">}</span> +<span id="L94" class="LineNr"> 94 </span> +<span id="L95" class="LineNr"> 95 </span><span class="Normal">void</span> <a href='035labels.cc.html#L95'>compute_byte_indices_for_labels</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>>& byte_index<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Normal">int</span> current_byte = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L98" class="LineNr"> 98 </span> <span class="Normal">const</span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L100" class="LineNr">100 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L101" class="LineNr">101 </span> <span class="Comment">// hack: if we have any operand metadata left after previous transforms,</span> +<span id="L102" class="LineNr">102 </span> <span class="Comment">// deduce its size</span> +<span id="L103" class="LineNr">103 </span> <span class="Comment">// Maybe we should just move this transform to before instruction</span> +<span id="L104" class="LineNr">104 </span> <span class="Comment">// packing, and deduce the size of *all* operands. But then we'll also</span> +<span id="L105" class="LineNr">105 </span> <span class="Comment">// have to deal with bitfields.</span> +<span id="L106" class="LineNr">106 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L107" class="LineNr">107 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">)</span> +<span id="L108" class="LineNr">108 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': don't use ':' when jumping to labels</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L109" class="LineNr">109 </span> current_byte += <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L110" class="LineNr">110 </span> <span class="Delimiter">}</span> +<span id="L111" class="LineNr">111 </span> <span class="Comment">// automatically handle /disp8 and /imm8 here</span> +<span id="L112" class="LineNr">112 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L113" class="LineNr">113 </span> ++current_byte<span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span> <span class="Delimiter">}</span> +<span id="L115" class="LineNr">115 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L116" class="LineNr">116 </span> string label = <a href='035labels.cc.html#L198'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L117" class="LineNr">117 </span> <span class="Comment">// ensure labels look sufficiently different from raw hex</span> +<span id="L118" class="LineNr">118 </span> <a href='035labels.cc.html#L52'>check_valid_name</a><span class="Delimiter">(</span>label<span class="Delimiter">);</span> +<span id="L119" class="LineNr">119 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L120" class="LineNr">120 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L394'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> +<span id="L121" class="LineNr">121 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': label definition (':') not allowed in operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L122" class="LineNr">122 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> +<span id="L123" class="LineNr">123 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': labels can only be the first <a href='011run.cc.html#L123'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L124" class="LineNr">124 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='035labels.cc.html#L135'>Dump_map</a><span class="Delimiter">)</span> +<span id="L125" class="LineNr">125 </span> cerr << <span class="Constant">"0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << <span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span>start + current_byte<span class="Delimiter">)</span> << <span class="Constant">' '</span> << label << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L126" class="LineNr">126 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>byte_index<span class="Delimiter">,</span> label<span class="Delimiter">,</span> current_byte<span class="Delimiter">);</span> +<span id="L127" class="LineNr">127 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"label '"</span> << label << <span class="Constant">"' is at address "</span> << <span class="Delimiter">(</span>current_byte+code<span class="Delimiter">.</span>start<span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L128" class="LineNr">128 </span> <span class="Comment">// no modifying current_byte; label definitions won't be in the final binary</span> +<span id="L129" class="LineNr">129 </span> <span class="Delimiter">}</span> +<span id="L130" class="LineNr">130 </span> <span class="Delimiter">}</span> +<span id="L131" class="LineNr">131 </span> <span class="Delimiter">}</span> +<span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span> +<span id="L133" class="LineNr">133 </span> +<span id="L134" class="LineNr">134 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L135" class="LineNr">135 </span><span class="Normal">bool</span> <a href='035labels.cc.html#L135'>Dump_map</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// currently used only by 'subx translate'</span> +<span id="L136" class="LineNr">136 </span><span class="Delimiter">:(before "End Commandline Options")</span> +<span id="L137" class="LineNr">137 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>*arg<span class="Delimiter">,</span> <span class="Constant">"--map"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L138" class="LineNr">138 </span> <a href='035labels.cc.html#L135'>Dump_map</a> =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L139" class="LineNr">139 </span><span class="Delimiter">}</span> +<span id="L140" class="LineNr">140 </span> +<span id="L141" class="LineNr">141 </span><span class="Delimiter">:(code)</span> +<span id="L142" class="LineNr">142 </span><span class="Normal">void</span> <a href='035labels.cc.html#L142'>drop_labels</a><span class="Delimiter">(</span>segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L143" class="LineNr">143 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L144" class="LineNr">144 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L145" class="LineNr">145 </span> vector<word>::iterator new_end = remove_if<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>end<span class="Delimiter">(),</span> <a href='035labels.cc.html#L150'>is_label</a><span class="Delimiter">);</span> +<span id="L146" class="LineNr">146 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>erase<span class="Delimiter">(</span>new_end<span class="Delimiter">,</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L147" class="LineNr">147 </span> <span class="Delimiter">}</span> +<span id="L148" class="LineNr">148 </span><span class="Delimiter">}</span> +<span id="L149" class="LineNr">149 </span> +<span id="L150" class="LineNr">150 </span><span class="Normal">bool</span> <a href='035labels.cc.html#L150'>is_label</a><span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L151" class="LineNr">151 </span> <span class="Identifier">return</span> *w<span class="Delimiter">.</span>data<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">;</span> +<span id="L152" class="LineNr">152 </span><span class="Delimiter">}</span> +<span id="L153" class="LineNr">153 </span> +<span id="L154" class="LineNr">154 </span><span class="Normal">void</span> <a href='035labels.cc.html#L154'>replace_labels_with_displacements</a><span class="Delimiter">(</span>segment& <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>>& byte_index<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L155" class="LineNr">155 </span> <span class="Normal">int32_t</span> byte_index_next_instruction_starts_at = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L156" class="LineNr">156 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L157" class="LineNr">157 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L158" class="LineNr">158 </span> byte_index_next_instruction_starts_at += <a href='034compute_segment_address.cc.html#L112'>num_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L159" class="LineNr">159 </span> <a href='011run.cc.html#L117'>line</a> new_inst<span class="Delimiter">;</span> +<span id="L160" class="LineNr">160 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L161" class="LineNr">161 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L162" class="LineNr">162 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span>byte_index<span class="Delimiter">,</span> curr<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L163" class="LineNr">163 </span> <span class="Normal">int32_t</span> displacement = <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>get<span class="Delimiter">(</span>byte_index<span class="Delimiter">,</span> curr<span class="Delimiter">.</span>data<span class="Delimiter">))</span> - byte_index_next_instruction_starts_at<span class="Delimiter">;</span> +<span id="L164" class="LineNr">164 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L165" class="LineNr">165 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>displacement > <span class="Constant">0xff</span> || displacement < -<span class="Constant">0x7f</span><span class="Delimiter">)</span> +<span id="L166" class="LineNr">166 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': label too far away for displacement "</span> << std::hex << displacement << <span class="Constant">" to fit in 8 bits</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L167" class="LineNr">167 </span> <span class="Normal">else</span> +<span id="L168" class="LineNr">168 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> displacement<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L169" class="LineNr">169 </span> <span class="Delimiter">}</span> +<span id="L170" class="LineNr">170 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L171" class="LineNr">171 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>displacement > <span class="Constant">0xffff</span> || displacement < -<span class="Constant">0x7fff</span><span class="Delimiter">)</span> +<span id="L172" class="LineNr">172 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': label too far away for displacement "</span> << std::hex << displacement << <span class="Constant">" to fit in 16 bits</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L173" class="LineNr">173 </span> <span class="Normal">else</span> +<span id="L174" class="LineNr">174 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> displacement<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L175" class="LineNr">175 </span> <span class="Delimiter">}</span> +<span id="L176" class="LineNr">176 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L177" class="LineNr">177 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> displacement<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L178" class="LineNr">178 </span> <span class="Delimiter">}</span> +<span id="L179" class="LineNr">179 </span> <span class="Delimiter">}</span> +<span id="L180" class="LineNr">180 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L181" class="LineNr">181 </span> new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span> +<span id="L182" class="LineNr">182 </span> <span class="Delimiter">}</span> +<span id="L183" class="LineNr">183 </span> <span class="Delimiter">}</span> +<span id="L184" class="LineNr">184 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> +<span id="L185" class="LineNr">185 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L231'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> +<span id="L186" class="LineNr">186 </span> <span class="Delimiter">}</span> +<span id="L187" class="LineNr">187 </span><span class="Delimiter">}</span> +<span id="L188" class="LineNr">188 </span> +<span id="L189" class="LineNr">189 </span>string <a href='035labels.cc.html#L189'>data_to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L190" class="LineNr">190 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L191" class="LineNr">191 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L192" class="LineNr">192 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L193" class="LineNr">193 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">;</span> +<span id="L194" class="LineNr">194 </span> <span class="Delimiter">}</span> +<span id="L195" class="LineNr">195 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L196" class="LineNr">196 </span><span class="Delimiter">}</span> +<span id="L197" class="LineNr">197 </span> +<span id="L198" class="LineNr">198 </span>string <a href='035labels.cc.html#L198'>drop_last</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L199" class="LineNr">199 </span> <span class="Identifier">return</span> string<span class="Delimiter">(</span>s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> --s<span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L200" class="LineNr">200 </span><span class="Delimiter">}</span> +<span id="L201" class="LineNr">201 </span> +<span id="L202" class="LineNr">202 </span><span class="Comment">//: Label definitions must be the first word on a line. No jumping inside</span> +<span id="L203" class="LineNr">203 </span><span class="Comment">//: instructions.</span> +<span id="L204" class="LineNr">204 </span><span class="Comment">//: They should also be the only word on a line.</span> +<span id="L205" class="LineNr">205 </span><span class="Comment">//: However, you can absolutely have multiple labels map to the same address,</span> +<span id="L206" class="LineNr">206 </span><span class="Comment">//: as long as they're on separate lines.</span> +<span id="L207" class="LineNr">207 </span> +<span id="L208" class="LineNr">208 </span><span class="Delimiter">:(scenario multiple_labels_at)</span> +<span id="L209" class="LineNr">209 </span>== <span class="Constant">0x1</span> +<span id="L210" class="LineNr">210 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L211" class="LineNr">211 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L212" class="LineNr">212 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L213" class="LineNr">213 </span><span class="Comment"># address 1</span> +<span id="L214" class="LineNr">214 </span><span class="Normal">loop</span>: +<span id="L215" class="LineNr">215 </span> $loop2: +<span id="L216" class="LineNr">216 </span><span class="Comment"># address 1 (labels take up no space)</span> <span id="L217" class="LineNr">217 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> -<span id="L218" class="LineNr">218 </span><span class="traceContains">+error: '0xab' looks like a hex number; use a different <a href='010---vm.cc.html#L228'>name</a></span> -<span id="L219" class="LineNr">219 </span> -<span id="L220" class="LineNr">220 </span><span class="Delimiter">:(scenario label_negative_hex)</span> -<span id="L221" class="LineNr">221 </span><span class="Special">% Hide_errors = true;</span> -<span id="L222" class="LineNr">222 </span>== <span class="Constant">0x1</span> -<span id="L223" class="LineNr">223 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L224" class="LineNr">224 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L225" class="LineNr">225 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L226" class="LineNr">226 </span> -a: <span class="Comment"># indent to avoid looking like a trace_should_not_contain command for this scenario</span> -<span id="L227" class="LineNr">227 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> -<span id="L228" class="LineNr">228 </span><span class="traceContains">+error: '-a' starts with '-', which can be confused with a negative number; use a different <a href='010---vm.cc.html#L228'>name</a></span> -<span id="L229" class="LineNr">229 </span> -<span id="L230" class="LineNr">230 </span><span class="Comment">//: now that we have labels, we need to adjust segment size computation to</span> -<span id="L231" class="LineNr">231 </span><span class="Comment">//: ignore them.</span> -<span id="L232" class="LineNr">232 </span> -<span id="L233" class="LineNr">233 </span><span class="Delimiter">:(scenario segment_size_ignores_labels)</span> -<span id="L234" class="LineNr">234 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L235" class="LineNr">235 </span>== <a href='031check_operands.cc.html#L14'>code</a> <span class="Comment"># 0x08048074</span> -<span id="L236" class="LineNr">236 </span><span class="PreProc">0</span><span class="Constant">5</span>/add <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># 5 bytes</span> -<span id="L237" class="LineNr">237 </span><span class="Normal">foo</span>: <span class="Comment"># 0 bytes</span> -<span id="L238" class="LineNr">238 </span>== <a href='011run.cc.html#L125'>data</a> <span class="Comment"># 0x08049079</span> -<span id="L239" class="LineNr">239 </span><span class="Normal">bar</span>: -<span id="L240" class="LineNr">240 </span><span class="PreProc">0</span><span class="Constant">0</span> -<span id="L241" class="LineNr">241 </span><span class="traceContains">+transform: segment 1 begins at address 0x08049079</span> -<span id="L242" class="LineNr">242 </span> -<span id="L243" class="LineNr">243 </span><span class="Delimiter">:(before "End num_bytes(curr) Special-cases")</span> -<span id="L244" class="LineNr">244 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='035labels.cc.html#L118'>is_label</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> -<span id="L245" class="LineNr">245 </span> <span class="Delimiter">;</span> <span class="Comment">// don't count it</span> +<span id="L218" class="LineNr">218 </span><span class="Comment"># address 6</span> +<span id="L219" class="LineNr">219 </span> eb $loop2/disp8 +<span id="L220" class="LineNr">220 </span><span class="Comment"># address 8</span> +<span id="L221" class="LineNr">221 </span> eb $loop3/disp8 +<span id="L222" class="LineNr">222 </span><span class="Comment"># address 0xa</span> +<span id="L223" class="LineNr">223 </span> $loop3: +<span id="L224" class="LineNr">224 </span><span class="traceContains">+transform: label 'loop' is at address 1</span> +<span id="L225" class="LineNr">225 </span><span class="traceContains">+transform: label '$loop2' is at address 1</span> +<span id="L226" class="LineNr">226 </span><span class="traceContains">+transform: label '$loop3' is at address a</span> +<span id="L227" class="LineNr">227 </span><span class="Comment"># first jump is to -7</span> +<span id="L228" class="LineNr">228 </span><span class="traceContains">+transform: instruction after <a href='011run.cc.html#L231'>transform</a>: 'eb f9'</span> +<span id="L229" class="LineNr">229 </span><span class="Comment"># second jump is to 0 (fall through)</span> +<span id="L230" class="LineNr">230 </span><span class="traceContains">+transform: instruction after <a href='011run.cc.html#L231'>transform</a>: 'eb 00'</span> +<span id="L231" class="LineNr">231 </span> +<span id="L232" class="LineNr">232 </span><span class="Delimiter">:(scenario label_too_short)</span> +<span id="L233" class="LineNr">233 </span><span class="Special">% Hide_errors = true;</span> +<span id="L234" class="LineNr">234 </span>== <span class="Constant">0x1</span> +<span id="L235" class="LineNr">235 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L236" class="LineNr">236 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L237" class="LineNr">237 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L238" class="LineNr">238 </span><span class="Normal">xz</span>: +<span id="L239" class="LineNr">239 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> +<span id="L240" class="LineNr">240 </span><span class="traceContains">+error: 'xz' is two characters long which can look like raw hex bytes at a glance; use a different <a href='010---vm.cc.html#L336'>name</a></span> +<span id="L241" class="LineNr">241 </span> +<span id="L242" class="LineNr">242 </span><span class="Delimiter">:(scenario label_hex)</span> +<span id="L243" class="LineNr">243 </span><span class="Special">% Hide_errors = true;</span> +<span id="L244" class="LineNr">244 </span>== <span class="Constant">0x1</span> +<span id="L245" class="LineNr">245 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L246" class="LineNr">246 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L247" class="LineNr">247 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L248" class="LineNr">248 </span><span class="Constant">0xab</span>: +<span id="L249" class="LineNr">249 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> +<span id="L250" class="LineNr">250 </span><span class="traceContains">+error: '0xab' looks like a hex number; use a different <a href='010---vm.cc.html#L336'>name</a></span> +<span id="L251" class="LineNr">251 </span> +<span id="L252" class="LineNr">252 </span><span class="Delimiter">:(scenario label_negative_hex)</span> +<span id="L253" class="LineNr">253 </span><span class="Special">% Hide_errors = true;</span> +<span id="L254" class="LineNr">254 </span>== <span class="Constant">0x1</span> +<span id="L255" class="LineNr">255 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L256" class="LineNr">256 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L257" class="LineNr">257 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L258" class="LineNr">258 </span> -a: <span class="Comment"># indent to avoid looking like a trace_should_not_contain command for this scenario</span> +<span id="L259" class="LineNr">259 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> +<span id="L260" class="LineNr">260 </span><span class="traceContains">+error: '-a' starts with '-', which can be confused with a negative number; use a different <a href='010---vm.cc.html#L336'>name</a></span> +<span id="L261" class="LineNr">261 </span> +<span id="L262" class="LineNr">262 </span><span class="Comment">//: now that we have labels, we need to adjust segment size computation to</span> +<span id="L263" class="LineNr">263 </span><span class="Comment">//: ignore them.</span> +<span id="L264" class="LineNr">264 </span> +<span id="L265" class="LineNr">265 </span><span class="Delimiter">:(scenario segment_size_ignores_labels)</span> +<span id="L266" class="LineNr">266 </span>== <a href='031check_operands.cc.html#L14'>code</a> <span class="Comment"># 0x08048074</span> +<span id="L267" class="LineNr">267 </span><span class="PreProc">0</span><span class="Constant">5</span>/add <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># 5 bytes</span> +<span id="L268" class="LineNr">268 </span><span class="Normal">foo</span>: <span class="Comment"># 0 bytes</span> +<span id="L269" class="LineNr">269 </span>== data <span class="Comment"># 0x08049079</span> +<span id="L270" class="LineNr">270 </span><span class="Normal">bar</span>: +<span id="L271" class="LineNr">271 </span><span class="PreProc">0</span><span class="Constant">0</span> +<span id="L272" class="LineNr">272 </span><span class="traceContains">+transform: segment 1 begins at address 0x08049079</span> +<span id="L273" class="LineNr">273 </span> +<span id="L274" class="LineNr">274 </span><span class="Delimiter">:(before "End num_bytes(curr) Special-cases")</span> +<span id="L275" class="LineNr">275 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='035labels.cc.html#L150'>is_label</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> +<span id="L276" class="LineNr">276 </span> <span class="Delimiter">;</span> <span class="Comment">// don't count it</span> </pre> </body> </html> diff --git a/html/subx/036global_variables.cc.html b/html/subx/036global_variables.cc.html index e4b6f75b..f5e53a17 100644 --- a/html/subx/036global_variables.cc.html +++ b/html/subx/036global_variables.cc.html @@ -21,12 +21,12 @@ a:hover { text-decoration: underline; } .LineNr { color: #444444; } .Constant { color: #00a0a0; } .Delimiter { color: #800080; } -.Special { color: #c00000; } +.SalientComment { color: #00ffff; } .Identifier { color: #c0a020; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } -.SalientComment { color: #00ffff; } +.Special { color: #c00000; } .PreProc { color: #800080; } --> </style> @@ -68,84 +68,84 @@ if ('onhashchange' in window) { <span id="L4" class="LineNr"> 4 </span><span class="Comment">//: However, they can only be used in imm32 and not disp32 operands. And they</span> <span id="L5" class="LineNr"> 5 </span><span class="Comment">//: can't be used with jump and call instructions.</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment">//:</span> -<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: This layer much the same structure as rewriting labels.</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: This layer has much the same structure as rewriting labels.</span> <span id="L8" class="LineNr"> 8 </span> <span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(scenario global_variable)</span> -<span id="L10" class="LineNr"> 10 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L11" class="LineNr"> 11 </span><span class="Special">% Mem.resize(0x2000);</span> -<span id="L12" class="LineNr"> 12 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L13" class="LineNr"> 13 </span>b9/copy x/imm32 <span class="Comment"># copy to ECX</span> -<span id="L14" class="LineNr"> 14 </span>== <a href='011run.cc.html#L125'>data</a> -<span id="L15" class="LineNr"> 15 </span><span class="Normal">x</span>: -<span id="L16" class="LineNr"> 16 </span><span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> -<span id="L17" class="LineNr"> 17 </span><span class="traceContains">+transform: global variable 'x' is at address 0x08049079</span> -<span id="L18" class="LineNr"> 18 </span> -<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> -<span id="L20" class="LineNr"> 20 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L22'>rewrite_global_variables</a><span class="Delimiter">);</span> -<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">:(code)</span> -<span id="L22" class="LineNr"> 22 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L22'>rewrite_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L23" class="LineNr"> 23 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite global variables"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L24" class="LineNr"> 24 </span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>> address<span class="Delimiter">;</span> -<span id="L25" class="LineNr"> 25 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> -<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L27" class="LineNr"> 27 </span> <a href='036global_variables.cc.html#L60'>drop_global_variables</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> -<span id="L28" class="LineNr"> 28 </span> <a href='036global_variables.cc.html#L65'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> -<span id="L29" class="LineNr"> 29 </span><span class="Delimiter">}</span> -<span id="L30" class="LineNr"> 30 </span> -<span id="L31" class="LineNr"> 31 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L32" class="LineNr"> 32 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L33" class="LineNr"> 33 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> address<span class="Delimiter">);</span> -<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">}</span> -<span id="L35" class="LineNr"> 35 </span> -<span id="L36" class="LineNr"> 36 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L37" class="LineNr"> 37 </span> <span class="Normal">int</span> current_address = s<span class="Delimiter">.</span><a href='011run.cc.html#L108'>start</a><span class="Delimiter">;</span> -<span id="L38" class="LineNr"> 38 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L39" class="LineNr"> 39 </span> <span class="Normal">const</span> line& inst = s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L40" class="LineNr"> 40 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L41" class="LineNr"> 41 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L43" class="LineNr"> 43 </span> ++current_address<span class="Delimiter">;</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">}</span> -<span id="L45" class="LineNr"> 45 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L46" class="LineNr"> 46 </span> string variable = <a href='035labels.cc.html#L166'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> -<span id="L47" class="LineNr"> 47 </span> <span class="Comment">// ensure variables look sufficiently different from raw hex</span> -<span id="L48" class="LineNr"> 48 </span> <a href='035labels.cc.html#L21'>check_valid_name</a><span class="Delimiter">(</span>variable<span class="Delimiter">);</span> -<span id="L49" class="LineNr"> 49 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L50" class="LineNr"> 50 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> -<span id="L51" class="LineNr"> 51 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': global variable names can only be the first <a href='011run.cc.html#L123'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L52" class="LineNr"> 52 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>address<span class="Delimiter">,</span> variable<span class="Delimiter">,</span> current_address<span class="Delimiter">);</span> -<span id="L53" class="LineNr"> 53 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"global variable '"</span> << variable << <span class="Constant">"' is at address 0x"</span> << <a href='010---vm.cc.html#L260'>HEXWORD</a> << current_address << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L54" class="LineNr"> 54 </span> <span class="Comment">// no modifying current_address; global variable definitions won't be in the final binary</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">}</span> -<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span> -<span id="L57" class="LineNr"> 57 </span> <span class="Delimiter">}</span> -<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span> -<span id="L59" class="LineNr"> 59 </span> -<span id="L60" class="LineNr"> 60 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L60'>drop_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L61" class="LineNr"> 61 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> -<span id="L62" class="LineNr"> 62 </span> <a href='035labels.cc.html#L110'>drop_labels</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> -<span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span> -<span id="L64" class="LineNr"> 64 </span> -<span id="L65" class="LineNr"> 65 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L65'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>program& p<span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L66" class="LineNr"> 66 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L67" class="LineNr"> 67 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L68" class="LineNr"> 68 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L69" class="LineNr"> 69 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L70" class="LineNr"> 70 </span> <a href='011run.cc.html#L117'>line</a> new_inst<span class="Delimiter">;</span> -<span id="L71" class="LineNr"> 71 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L72" class="LineNr"> 72 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L73" class="LineNr"> 73 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L10" class="LineNr"> 10 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L11" class="LineNr"> 11 </span>b9/copy x/imm32 <span class="Comment"># copy to ECX</span> +<span id="L12" class="LineNr"> 12 </span>== data +<span id="L13" class="LineNr"> 13 </span><span class="Normal">x</span>: +<span id="L14" class="LineNr"> 14 </span><span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+transform: global variable 'x' is at address 0x08049079</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Level-2 Transforms")</span> +<span id="L18" class="LineNr"> 18 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L20'>rewrite_global_variables</a><span class="Delimiter">);</span> +<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(code)</span> +<span id="L20" class="LineNr"> 20 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L20'>rewrite_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite global variables"</span> << end<span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>> address<span class="Delimiter">;</span> +<span id="L23" class="LineNr"> 23 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span> <a href='036global_variables.cc.html#L58'>drop_global_variables</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <a href='036global_variables.cc.html#L63'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> address<span class="Delimiter">);</span> +<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">}</span> +<span id="L28" class="LineNr"> 28 </span> +<span id="L29" class="LineNr"> 29 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L31" class="LineNr"> 31 </span> compute_addresses_for_global_variables<span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> address<span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span> +<span id="L33" class="LineNr"> 33 </span> +<span id="L34" class="LineNr"> 34 </span><span class="Normal">void</span> compute_addresses_for_global_variables<span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">int</span> current_address = s<span class="Delimiter">.</span>start<span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">const</span> line& inst = s<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L41" class="LineNr"> 41 </span> ++current_address<span class="Delimiter">;</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Delimiter">}</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L44" class="LineNr"> 44 </span> string variable = <a href='035labels.cc.html#L198'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment">// ensure variables look sufficiently different from raw hex</span> +<span id="L46" class="LineNr"> 46 </span> <a href='035labels.cc.html#L52'>check_valid_name</a><span class="Delimiter">(</span>variable<span class="Delimiter">);</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L225'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> +<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': global variable names can only be the first <a href='011run.cc.html#L123'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>address<span class="Delimiter">,</span> variable<span class="Delimiter">,</span> current_address<span class="Delimiter">);</span> +<span id="L51" class="LineNr"> 51 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"global variable '"</span> << variable << <span class="Constant">"' is at address 0x"</span> << <a href='010---vm.cc.html#L368'>HEXWORD</a> << current_address << end<span class="Delimiter">();</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Comment">// no modifying current_address; global variable definitions won't be in the final binary</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Delimiter">}</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Delimiter">}</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">}</span> +<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">}</span> +<span id="L57" class="LineNr"> 57 </span> +<span id="L58" class="LineNr"> 58 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L58'>drop_global_variables</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='031check_operands.cc.html#L14'>code</a> segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L60" class="LineNr"> 60 </span> <a href='035labels.cc.html#L142'>drop_labels</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">}</span> +<span id="L62" class="LineNr"> 62 </span> +<span id="L63" class="LineNr"> 63 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L63'>replace_global_variables_with_addresses</a><span class="Delimiter">(</span>program& p<span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L65" class="LineNr"> 65 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L67" class="LineNr"> 67 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L68" class="LineNr"> 68 </span> <a href='011run.cc.html#L117'>line</a> new_inst<span class="Delimiter">;</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L71" class="LineNr"> 71 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!looks_like_hex_int<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">))</span> +<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"missing reference to global '"</span> << curr<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L74" class="LineNr"> 74 </span> new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span> <span id="L75" class="LineNr"> 75 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L76" class="LineNr"> 76 </span> <span class="Delimiter">}</span> <span id="L77" class="LineNr"> 77 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!valid_use_of_global_variable<span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L78" class="LineNr"> 78 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': can't refer to global variable '"</span> << curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L78" class="LineNr"> 78 </span> <a href='003trace.cc.html#L211'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': can't refer to global variable '"</span> << curr<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> <span id="L79" class="LineNr"> 79 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L80" class="LineNr"> 80 </span> <span class="Delimiter">}</span> -<span id="L81" class="LineNr"> 81 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> get<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">),</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L81" class="LineNr"> 81 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> get<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span>data<span class="Delimiter">),</span> <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span> <span id="L83" class="LineNr"> 83 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> -<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L209'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L231'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> <span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">}</span> <span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span> <span id="L87" class="LineNr"> 87 </span> @@ -159,7 +159,7 @@ if ('onhashchange' in window) { <span id="L95" class="LineNr"> 95 </span><span class="Comment">//: requires first saving some data early before we pack operands</span> <span id="L96" class="LineNr"> 96 </span> <span id="L97" class="LineNr"> 97 </span><span class="Delimiter">:(after "Begin Level-2 Transforms")</span> -<span id="L98" class="LineNr"> 98 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L100'>correlate_disp32_with_mod</a><span class="Delimiter">);</span> +<span id="L98" class="LineNr"> 98 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='036global_variables.cc.html#L100'>correlate_disp32_with_mod</a><span class="Delimiter">);</span> <span id="L99" class="LineNr"> 99 </span><span class="Delimiter">:(code)</span> <span id="L100" class="LineNr">100 </span><span class="Normal">void</span> <a href='036global_variables.cc.html#L100'>correlate_disp32_with_mod</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> @@ -192,7 +192,7 @@ if ('onhashchange' in window) { <span id="L128" class="LineNr">128 </span><span class="Special">% Hide_errors = true;</span> <span id="L129" class="LineNr">129 </span>== <a href='031check_operands.cc.html#L14'>code</a> <span id="L130" class="LineNr">130 </span>eb/jump x/disp8 -<span id="L131" class="LineNr">131 </span>== <a href='011run.cc.html#L125'>data</a> +<span id="L131" class="LineNr">131 </span>== data <span id="L132" class="LineNr">132 </span><span class="Normal">x</span>: <span id="L133" class="LineNr">133 </span><span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span id="L134" class="LineNr">134 </span><span class="traceContains">+error: 'eb/jump x/disp8': can't refer to global variable 'x'</span> @@ -203,7 +203,7 @@ if ('onhashchange' in window) { <span id="L139" class="LineNr">139 </span><span class="Special">% Hide_errors = true;</span> <span id="L140" class="LineNr">140 </span>== <a href='031check_operands.cc.html#L14'>code</a> <span id="L141" class="LineNr">141 </span>e8/call x/disp32 -<span id="L142" class="LineNr">142 </span>== <a href='011run.cc.html#L125'>data</a> +<span id="L142" class="LineNr">142 </span>== data <span id="L143" class="LineNr">143 </span><span class="Normal">x</span>: <span id="L144" class="LineNr">144 </span><span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span id="L145" class="LineNr">145 </span><span class="traceContains">+error: 'e8/call x/disp32': can't refer to global variable 'x'</span> @@ -211,34 +211,32 @@ if ('onhashchange' in window) { <span id="L147" class="LineNr">147 </span><span class="CommentedCode">#? +error: can't call to the data segment ('x')</span> <span id="L148" class="LineNr">148 </span> <span id="L149" class="LineNr">149 </span><span class="Delimiter">:(scenario disp32_data_with_modrm)</span> -<span id="L150" class="LineNr">150 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L151" class="LineNr">151 </span><span class="Special">% Mem.resize(0x2000);</span> -<span id="L152" class="LineNr">152 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L153" class="LineNr">153 </span>8b/copy <span class="Constant">0</span>/mod/indirect <span class="Constant">5</span>/rm32/<span class="Delimiter">.</span>disp32 <span class="Constant">2</span>/r32/EDX x/disp32 -<span id="L154" class="LineNr">154 </span>== -<span id="L155" class="LineNr">155 </span><span class="Normal">x</span>: -<span id="L156" class="LineNr">156 </span><span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> -<span id="L157" class="LineNr">157 </span>$error: <span class="Constant">0</span> -<span id="L158" class="LineNr">158 </span> -<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(scenarios transform)</span> -<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(scenario disp32_data_with_call)</span> -<span id="L161" class="LineNr">161 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L162" class="LineNr">162 </span><span class="Normal">foo</span>: -<span id="L163" class="LineNr">163 </span>e8/call bar/disp32 -<span id="L164" class="LineNr">164 </span><span class="Normal">bar</span>: -<span id="L165" class="LineNr">165 </span>$error: <span class="Constant">0</span> -<span id="L166" class="LineNr">166 </span> -<span id="L167" class="LineNr">167 </span><span class="Delimiter">:(code)</span> -<span id="L168" class="LineNr">168 </span>string to_full_string<span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L169" class="LineNr">169 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L170" class="LineNr">170 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L171" class="LineNr">171 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> -<span id="L172" class="LineNr">172 </span> out << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L173" class="LineNr">173 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> -<span id="L174" class="LineNr">174 </span> out << <span class="Constant">'/'</span> << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L175" class="LineNr">175 </span> <span class="Delimiter">}</span> -<span id="L176" class="LineNr">176 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> +<span id="L150" class="LineNr">150 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L151" class="LineNr">151 </span>8b/copy <span class="Constant">0</span>/mod/indirect <span class="Constant">5</span>/rm32/<span class="Delimiter">.</span>disp32 <span class="Constant">2</span>/r32/EDX x/disp32 +<span id="L152" class="LineNr">152 </span>== data +<span id="L153" class="LineNr">153 </span><span class="Normal">x</span>: +<span id="L154" class="LineNr">154 </span><span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> +<span id="L155" class="LineNr">155 </span>$error: <span class="Constant">0</span> +<span id="L156" class="LineNr">156 </span> +<span id="L157" class="LineNr">157 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L158" class="LineNr">158 </span><span class="Delimiter">:(scenario disp32_data_with_call)</span> +<span id="L159" class="LineNr">159 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L160" class="LineNr">160 </span><span class="Normal">foo</span>: +<span id="L161" class="LineNr">161 </span>e8/call bar/disp32 +<span id="L162" class="LineNr">162 </span><span class="Normal">bar</span>: +<span id="L163" class="LineNr">163 </span>$error: <span class="Constant">0</span> +<span id="L164" class="LineNr">164 </span> +<span id="L165" class="LineNr">165 </span><span class="Delimiter">:(code)</span> +<span id="L166" class="LineNr">166 </span>string to_full_string<span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L167" class="LineNr">167 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L168" class="LineNr">168 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L169" class="LineNr">169 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L170" class="LineNr">170 </span> out << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">;</span> +<span id="L171" class="LineNr">171 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> +<span id="L172" class="LineNr">172 </span> out << <span class="Constant">'/'</span> << in<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L173" class="LineNr">173 </span> <span class="Delimiter">}</span> +<span id="L174" class="LineNr">174 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L175" class="LineNr">175 </span><span class="Delimiter">}</span> </pre> </body> </html> diff --git a/html/subx/038---literal_strings.cc.html b/html/subx/038---literal_strings.cc.html index 16a42c35..25066a8b 100644 --- a/html/subx/038---literal_strings.cc.html +++ b/html/subx/038---literal_strings.cc.html @@ -17,10 +17,9 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .cSpecial { color: #008000; } .LineNr { color: #444444; } -.traceAbsent { color: #c00000; } .Constant { color: #00a0a0; } .Delimiter { color: #800080; } -.Special { color: #c00000; } +.traceAbsent { color: #c00000; } .Identifier { color: #c0a020; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } @@ -66,215 +65,214 @@ if ('onhashchange' in window) { <span id="L4" class="LineNr"> 4 </span><span class="Comment">//: always be the second segment).</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario transform_literal_string)</span> -<span id="L7" class="LineNr"> 7 </span><span class="Special">% Mem_offset = CODE_START;</span> -<span id="L8" class="LineNr"> 8 </span><span class="Special">% Mem.resize(AFTER_STACK - CODE_START);</span> -<span id="L9" class="LineNr"> 9 </span>== <a href='031check_operands.cc.html#L14'>code</a> -<span id="L10" class="LineNr"> 10 </span> b8/copy <span class="Constant">"test"</span>/imm32 <span class="Comment"># copy to EAX</span> -<span id="L11" class="LineNr"> 11 </span><span class="traceContains">+transform: -- move literal strings to <a href='011run.cc.html#L125'>data</a> segment</span> -<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+transform: adding global variable '__subx_global_1' containing "test"</span> -<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+transform: instruction after <a href='011run.cc.html#L209'>transform</a>: 'b8 __subx_global_1'</span> -<span id="L14" class="LineNr"> 14 </span> -<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: We don't rely on any transforms running in previous layers, but this layer</span> -<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: knows about labels and global variables and will emit them for previous</span> -<span id="L17" class="LineNr"> 17 </span><span class="Comment">//: layers to transform.</span> -<span id="L18" class="LineNr"> 18 </span><span class="Delimiter">:(after "Begin Transforms")</span> -<span id="L19" class="LineNr"> 19 </span><span class="Comment">// Begin Level-3 Transforms</span> -<span id="L20" class="LineNr"> 20 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='038---literal_strings.cc.html#L26'>transform_literal_strings</a><span class="Delimiter">);</span> -<span id="L21" class="LineNr"> 21 </span><span class="Comment">// End Level-3 Transforms</span> -<span id="L22" class="LineNr"> 22 </span> -<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L24" class="LineNr"> 24 </span><span class="Normal">int</span> <a href='038---literal_strings.cc.html#L24'>Next_auto_global</a> = <span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(code)</span> -<span id="L26" class="LineNr"> 26 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L26'>transform_literal_strings</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- move literal strings to <a href='011run.cc.html#L125'>data</a> segment"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L29" class="LineNr"> 29 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L30" class="LineNr"> 30 </span> segment <a href='011run.cc.html#L125'>data</a><span class="Delimiter">;</span> -<span id="L31" class="LineNr"> 31 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L32" class="LineNr"> 32 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L33" class="LineNr"> 33 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L34" class="LineNr"> 34 </span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> != <span class="Constant">'"'</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L36" class="LineNr"> 36 </span> ostringstream global_name<span class="Delimiter">;</span> -<span id="L37" class="LineNr"> 37 </span> global_name << <span class="Constant">"__subx_global_"</span> << <a href='038---literal_strings.cc.html#L24'>Next_auto_global</a><span class="Delimiter">;</span> -<span id="L38" class="LineNr"> 38 </span> ++Next_auto_global<span class="Delimiter">;</span> -<span id="L39" class="LineNr"> 39 </span> <a href='038---literal_strings.cc.html#L53'>add_global_to_data_segment</a><span class="Delimiter">(</span>global_name<span class="Delimiter">.</span>str<span class="Delimiter">(),</span> curr<span class="Delimiter">,</span> <a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> -<span id="L40" class="LineNr"> 40 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = global_name<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L41" class="LineNr"> 41 </span> <span class="Delimiter">}</span> -<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L209'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L43" class="LineNr"> 43 </span> <span class="Delimiter">}</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L45" class="LineNr"> 45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)</span> < <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L46" class="LineNr"> 46 </span> p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> -<span id="L47" class="LineNr"> 47 </span> p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Delimiter">}</span> -<span id="L49" class="LineNr"> 49 </span> vector<line>& existing_data = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">;</span> -<span id="L50" class="LineNr"> 50 </span> existing_data<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>existing_data<span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">(),</span> <a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> <a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">());</span> -<span id="L51" class="LineNr"> 51 </span><span class="Delimiter">}</span> -<span id="L52" class="LineNr"> 52 </span> -<span id="L53" class="LineNr"> 53 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L53'>add_global_to_data_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> string& <a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">,</span> <span class="Normal">const</span> word& value<span class="Delimiter">,</span> segment& <a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"adding global variable '"</span> << name << <span class="Constant">"' containing "</span> << value<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Comment">// emit label</span> -<span id="L56" class="LineNr"> 56 </span> <a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>label<span class="Delimiter">(</span><a href='010---vm.cc.html#L228'>name</a><span class="Delimiter">));</span> -<span id="L57" class="LineNr"> 57 </span> <span class="Comment">// emit size for size-prefixed array</span> -<span id="L58" class="LineNr"> 58 </span> <a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L117'>line</a><span class="Delimiter">());</span> -<span id="L59" class="LineNr"> 59 </span> emit_hex_bytes<span class="Delimiter">(</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>back<span class="Delimiter">(),</span> <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>value<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span>-<span class="Comment">/*</span><span class="Comment">skip quotes</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Comment">/*</span><span class="Comment">bytes</span><span class="Comment">*/</span><span class="Delimiter">);</span> -<span id="L60" class="LineNr"> 60 </span> <span class="Comment">// emit data byte by byte</span> -<span id="L61" class="LineNr"> 61 </span> <a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L117'>line</a><span class="Delimiter">());</span> -<span id="L62" class="LineNr"> 62 </span> line& curr = <a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>back<span class="Delimiter">();</span> -<span id="L63" class="LineNr"> 63 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip <a href='011run.cc.html#L108'>start</a> quote</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>value<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">)</span>-<span class="Comment">/*</span><span class="Comment">skip <a href='003trace.cc.html#L230'>end</a> quote</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L64" class="LineNr"> 64 </span> <span class="Normal">char</span> c = value<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L65" class="LineNr"> 65 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> -<span id="L66" class="LineNr"> 66 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L125'>data</a> = <a href='030---operands.cc.html#L274'>hex_byte_to_string</a><span class="Delimiter">(</span>c<span class="Delimiter">);</span> -<span id="L67" class="LineNr"> 67 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">,</span> c<span class="Delimiter">));</span> -<span id="L68" class="LineNr"> 68 </span> <span class="Delimiter">}</span> -<span id="L69" class="LineNr"> 69 </span><span class="Delimiter">}</span> -<span id="L70" class="LineNr"> 70 </span> -<span id="L71" class="LineNr"> 71 </span><a href='011run.cc.html#L117'>line</a> label<span class="Delimiter">(</span>string s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L72" class="LineNr"> 72 </span> <a href='011run.cc.html#L117'>line</a> result<span class="Delimiter">;</span> -<span id="L73" class="LineNr"> 73 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> -<span id="L74" class="LineNr"> 74 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L125'>data</a> = <span class="Delimiter">(</span>s+<span class="Constant">":"</span><span class="Delimiter">);</span> -<span id="L75" class="LineNr"> 75 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">}</span> -<span id="L77" class="LineNr"> 77 </span> -<span id="L78" class="LineNr"> 78 </span><span class="Comment">//: Within strings, whitespace is significant. So we need to redo our instruction</span> -<span id="L79" class="LineNr"> 79 </span><span class="Comment">//: parsing.</span> -<span id="L80" class="LineNr"> 80 </span> -<span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(scenarios parse_instruction_character_by_character)</span> -<span id="L82" class="LineNr"> 82 </span><span class="Delimiter">:(scenario instruction_with_string_literal)</span> -<span id="L83" class="LineNr"> 83 </span>a <span class="Constant">"abc def"</span> z <span class="Comment"># two spaces inside string</span> -<span id="L84" class="LineNr"> 84 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L85" class="LineNr"> 85 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: "abc def"</span> -<span id="L86" class="LineNr"> 86 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: z</span> -<span id="L87" class="LineNr"> 87 </span><span class="Comment"># no other words</span> -<span id="L88" class="LineNr"> 88 </span>$parse2: <span class="Constant">3</span> -<span id="L89" class="LineNr"> 89 </span> -<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(before "End Line Parsing Special-cases(line_data -> l)")</span> -<span id="L91" class="LineNr"> 91 </span><span class="Normal">if</span> <span class="Delimiter">(</span>line_data<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'"'</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// can cause false-positives, but we can handle them</span> -<span id="L92" class="LineNr"> 92 </span> parse_instruction_character_by_character<span class="Delimiter">(</span>line_data<span class="Delimiter">,</span> l<span class="Delimiter">);</span> -<span id="L93" class="LineNr"> 93 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L94" class="LineNr"> 94 </span><span class="Delimiter">}</span> -<span id="L95" class="LineNr"> 95 </span> -<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">:(code)</span> -<span id="L97" class="LineNr"> 97 </span><span class="Normal">void</span> parse_instruction_character_by_character<span class="Delimiter">(</span><span class="Normal">const</span> string& line_data<span class="Delimiter">,</span> vector<line>& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L98" class="LineNr"> 98 </span> <span class="Comment">// parse literals</span> -<span id="L99" class="LineNr"> 99 </span> istringstream in<span class="Delimiter">(</span>line_data<span class="Delimiter">);</span> -<span id="L100" class="LineNr">100 </span> in >> std::noskipws<span class="Delimiter">;</span> -<span id="L101" class="LineNr">101 </span> <a href='011run.cc.html#L117'>line</a> result<span class="Delimiter">;</span> -<span id="L102" class="LineNr">102 </span> <span class="Comment">// add tokens (words or strings) one by one</span> -<span id="L103" class="LineNr">103 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L104" class="LineNr">104 </span> <a href='038---literal_strings.cc.html#L137'>skip_whitespace</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span> -<span id="L105" class="LineNr">105 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L106" class="LineNr">106 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> -<span id="L107" class="LineNr">107 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// comment; drop rest of line</span> -<span id="L108" class="LineNr">108 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// line metadata; skip for now</span> -<span id="L109" class="LineNr">109 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'.'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L110" class="LineNr">110 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// comment token at end of line</span> -<span id="L111" class="LineNr">111 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> -<span id="L112" class="LineNr">112 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// '.' followed by space is comment token; skip</span> -<span id="L113" class="LineNr">113 </span> <span class="Delimiter">}</span> -<span id="L114" class="LineNr">114 </span> ostringstream w<span class="Delimiter">;</span> -<span id="L115" class="LineNr">115 </span> w << c<span class="Delimiter">;</span> -<span id="L116" class="LineNr">116 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'"'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L117" class="LineNr">117 </span> <span class="Comment">// slurp until '"'</span> -<span id="L118" class="LineNr">118 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L119" class="LineNr">119 </span> in >> c<span class="Delimiter">;</span> -<span id="L120" class="LineNr">120 </span> w << c<span class="Delimiter">;</span> -<span id="L121" class="LineNr">121 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'"'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L122" class="LineNr">122 </span> <span class="Delimiter">}</span> -<span id="L123" class="LineNr">123 </span> <span class="Delimiter">}</span> -<span id="L124" class="LineNr">124 </span> <span class="Comment">// slurp any remaining characters until whitespace</span> -<span id="L125" class="LineNr">125 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>!isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">())</span> && <a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span class="Comment">// peek can sometimes trigger eof(), so do it first</span> -<span id="L126" class="LineNr">126 </span> in >> c<span class="Delimiter">;</span> -<span id="L127" class="LineNr">127 </span> w << c<span class="Delimiter">;</span> -<span id="L128" class="LineNr">128 </span> <span class="Delimiter">}</span> -<span id="L129" class="LineNr">129 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> -<span id="L130" class="LineNr">130 </span> <a href='011run.cc.html#L184'>parse_word</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>str<span class="Delimiter">(),</span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span> -<span id="L131" class="LineNr">131 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse2"</span><span class="Delimiter">)</span> << <span class="Constant">"word: "</span> << to_string<span class="Delimiter">(</span>result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">())</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> -<span id="L132" class="LineNr">132 </span> <span class="Delimiter">}</span> -<span id="L133" class="LineNr">133 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> -<span id="L134" class="LineNr">134 </span> out<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span> -<span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span> -<span id="L136" class="LineNr">136 </span> -<span id="L137" class="LineNr">137 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L137'>skip_whitespace</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L138" class="LineNr">138 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L139" class="LineNr">139 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> -<span id="L140" class="LineNr">140 </span> <span class="Normal">else</span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L141" class="LineNr">141 </span> <span class="Delimiter">}</span> -<span id="L142" class="LineNr">142 </span><span class="Delimiter">}</span> -<span id="L143" class="LineNr">143 </span> -<span id="L144" class="LineNr">144 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L144'>skip_comment</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L145" class="LineNr">145 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L146" class="LineNr">146 </span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> -<span id="L147" class="LineNr">147 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> -<span id="L148" class="LineNr">148 </span> <span class="Delimiter">}</span> -<span id="L149" class="LineNr">149 </span><span class="Delimiter">}</span> -<span id="L150" class="LineNr">150 </span> -<span id="L151" class="LineNr">151 </span><span class="Comment">// helper for tests</span> -<span id="L152" class="LineNr">152 </span><span class="Normal">void</span> parse_instruction_character_by_character<span class="Delimiter">(</span><span class="Normal">const</span> string& line_data<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L153" class="LineNr">153 </span> vector<line> out<span class="Delimiter">;</span> -<span id="L154" class="LineNr">154 </span> parse_instruction_character_by_character<span class="Delimiter">(</span>line_data<span class="Delimiter">,</span> out<span class="Delimiter">);</span> -<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span> -<span id="L156" class="LineNr">156 </span> -<span id="L157" class="LineNr">157 </span><span class="Delimiter">:(scenario parse2_comment_token_in_middle)</span> -<span id="L158" class="LineNr">158 </span>a <span class="Delimiter">.</span> z -<span id="L159" class="LineNr">159 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L160" class="LineNr">160 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: z</span> -<span id="L161" class="LineNr">161 </span><span class="traceAbsent">-parse2: <a href='011run.cc.html#L123'>word</a>: .</span> -<span id="L162" class="LineNr">162 </span><span class="Comment"># no other words</span> -<span id="L163" class="LineNr">163 </span>$parse2: <span class="Constant">2</span> -<span id="L164" class="LineNr">164 </span> -<span id="L165" class="LineNr">165 </span><span class="Delimiter">:(scenario parse2_word_starting_with_dot)</span> -<span id="L166" class="LineNr">166 </span>a <span class="Delimiter">.</span>b c -<span id="L167" class="LineNr">167 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L168" class="LineNr">168 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: .b</span> -<span id="L169" class="LineNr">169 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: c</span> -<span id="L170" class="LineNr">170 </span> -<span id="L171" class="LineNr">171 </span><span class="Delimiter">:(scenario parse2_comment_token_at_start)</span> -<span id="L172" class="LineNr">172 </span><span class="Delimiter">.</span> a b -<span id="L173" class="LineNr">173 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L174" class="LineNr">174 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b</span> -<span id="L175" class="LineNr">175 </span><span class="traceAbsent">-parse2: <a href='011run.cc.html#L123'>word</a>: .</span> -<span id="L176" class="LineNr">176 </span> -<span id="L177" class="LineNr">177 </span><span class="Delimiter">:(scenario parse2_comment_token_at_end)</span> -<span id="L178" class="LineNr">178 </span>a b <span class="Delimiter">.</span> -<span id="L179" class="LineNr">179 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L180" class="LineNr">180 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b</span> -<span id="L181" class="LineNr">181 </span><span class="traceAbsent">-parse2: <a href='011run.cc.html#L123'>word</a>: .</span> -<span id="L182" class="LineNr">182 </span> -<span id="L183" class="LineNr">183 </span><span class="Delimiter">:(scenario parse2_word_starting_with_dot_at_start)</span> -<span id="L184" class="LineNr">184 </span><span class="Delimiter">.</span>a b c -<span id="L185" class="LineNr">185 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: .a</span> -<span id="L186" class="LineNr">186 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b</span> -<span id="L187" class="LineNr">187 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: c</span> -<span id="L188" class="LineNr">188 </span> -<span id="L189" class="LineNr">189 </span><span class="Delimiter">:(scenario parse2_metadata)</span> -<span id="L190" class="LineNr">190 </span><span class="Delimiter">.</span>a b/c d -<span id="L191" class="LineNr">191 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: .a</span> -<span id="L192" class="LineNr">192 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b /c</span> -<span id="L193" class="LineNr">193 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: d</span> -<span id="L194" class="LineNr">194 </span> -<span id="L195" class="LineNr">195 </span><span class="Delimiter">:(scenario parse2_string_with_metadata)</span> -<span id="L196" class="LineNr">196 </span>a <span class="Constant">"bc def"</span>/disp32 g -<span id="L197" class="LineNr">197 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L198" class="LineNr">198 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: "bc def" /disp32</span> -<span id="L199" class="LineNr">199 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: g</span> -<span id="L200" class="LineNr">200 </span> -<span id="L201" class="LineNr">201 </span><span class="Delimiter">:(scenario parse2_string_with_metadata_at_end)</span> -<span id="L202" class="LineNr">202 </span>a <span class="Constant">"bc def"</span>/disp32 -<span id="L203" class="LineNr">203 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> -<span id="L204" class="LineNr">204 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: "bc def" /disp32</span> -<span id="L205" class="LineNr">205 </span> -<span id="L206" class="LineNr">206 </span><span class="Delimiter">:(code)</span> -<span id="L207" class="LineNr">207 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L207'>test_parse2_string_with_metadata_at_end_of_line_without_newline</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L208" class="LineNr">208 </span> parse_instruction_character_by_character<span class="Delimiter">(</span> -<span id="L209" class="LineNr">209 </span> <span class="Constant">"68/push </span><span class="cSpecial">\"</span><span class="Constant">test</span><span class="cSpecial">\"</span><span class="Constant">/f"</span> <span class="Comment">// no newline, which is how calls from parse() will look</span> -<span id="L210" class="LineNr">210 </span> <span class="Delimiter">);</span> -<span id="L211" class="LineNr">211 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> -<span id="L212" class="LineNr">212 </span> <span class="Constant">"parse2: <a href='011run.cc.html#L123'>word</a>: 68 /push^D"</span> -<span id="L213" class="LineNr">213 </span> <span class="Constant">"parse2: <a href='011run.cc.html#L123'>word</a>: </span><span class="cSpecial">\"</span><span class="Constant">test</span><span class="cSpecial">\"</span><span class="Constant"> /f^D"</span> -<span id="L214" class="LineNr">214 </span> <span class="Delimiter">);</span> -<span id="L215" class="LineNr">215 </span><span class="Delimiter">}</span> +<span id="L7" class="LineNr"> 7 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L8" class="LineNr"> 8 </span> b8/copy <span class="Constant">"test"</span>/imm32 <span class="Comment"># copy to EAX</span> +<span id="L9" class="LineNr"> 9 </span>== data <span class="Comment"># need to manually create this for now</span> +<span id="L10" class="LineNr"> 10 </span><span class="traceContains">+transform: -- move literal strings to data segment</span> +<span id="L11" class="LineNr"> 11 </span><span class="traceContains">+transform: adding global variable '__subx_global_1' containing "test"</span> +<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+transform: instruction after <a href='011run.cc.html#L231'>transform</a>: 'b8 __subx_global_1'</span> +<span id="L13" class="LineNr"> 13 </span> +<span id="L14" class="LineNr"> 14 </span><span class="Comment">//: We don't rely on any transforms running in previous layers, but this layer</span> +<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: knows about labels and global variables and will emit them for previous</span> +<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: layers to transform.</span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(after "Begin Transforms")</span> +<span id="L18" class="LineNr"> 18 </span><span class="Comment">// Begin Level-3 Transforms</span> +<span id="L19" class="LineNr"> 19 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='038---literal_strings.cc.html#L25'>transform_literal_strings</a><span class="Delimiter">);</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment">// End Level-3 Transforms</span> +<span id="L21" class="LineNr"> 21 </span> +<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L23" class="LineNr"> 23 </span><span class="Normal">int</span> <a href='038---literal_strings.cc.html#L23'>Next_auto_global</a> = <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L24" class="LineNr"> 24 </span><span class="Delimiter">:(code)</span> +<span id="L25" class="LineNr"> 25 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L25'>transform_literal_strings</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L26" class="LineNr"> 26 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- move literal strings to data segment"</span> << end<span class="Delimiter">();</span> +<span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L28" class="LineNr"> 28 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L29" class="LineNr"> 29 </span> segment data<span class="Delimiter">;</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L31" class="LineNr"> 31 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L33" class="LineNr"> 33 </span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> != <span class="Constant">'"'</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L35" class="LineNr"> 35 </span> ostringstream global_name<span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span> global_name << <span class="Constant">"__subx_global_"</span> << <a href='038---literal_strings.cc.html#L23'>Next_auto_global</a><span class="Delimiter">;</span> +<span id="L37" class="LineNr"> 37 </span> ++Next_auto_global<span class="Delimiter">;</span> +<span id="L38" class="LineNr"> 38 </span> <a href='038---literal_strings.cc.html#L52'>add_global_to_data_segment</a><span class="Delimiter">(</span>global_name<span class="Delimiter">.</span>str<span class="Delimiter">(),</span> curr<span class="Delimiter">,</span> data<span class="Delimiter">);</span> +<span id="L39" class="LineNr"> 39 </span> curr<span class="Delimiter">.</span>data = global_name<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Delimiter">}</span> +<span id="L41" class="LineNr"> 41 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after <a href='011run.cc.html#L231'>transform</a>: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Delimiter">}</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">)</span> < <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L45" class="LineNr"> 45 </span> p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L46" class="LineNr"> 46 </span> p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Delimiter">}</span> +<span id="L48" class="LineNr"> 48 </span> vector<line>& existing_data = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">;</span> +<span id="L49" class="LineNr"> 49 </span> existing_data<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>existing_data<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>end<span class="Delimiter">());</span> +<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">}</span> +<span id="L51" class="LineNr"> 51 </span> +<span id="L52" class="LineNr"> 52 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L52'>add_global_to_data_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> string& <a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">,</span> <span class="Normal">const</span> word& value<span class="Delimiter">,</span> segment& data<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L53" class="LineNr"> 53 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"adding global variable '"</span> << name << <span class="Constant">"' containing "</span> << value<span class="Delimiter">.</span>data << end<span class="Delimiter">();</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Comment">// emit label</span> +<span id="L55" class="LineNr"> 55 </span> data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>label<span class="Delimiter">(</span><a href='010---vm.cc.html#L336'>name</a><span class="Delimiter">));</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Comment">// emit size for size-prefixed array</span> +<span id="L57" class="LineNr"> 57 </span> data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L117'>line</a><span class="Delimiter">());</span> +<span id="L58" class="LineNr"> 58 </span> emit_hex_bytes<span class="Delimiter">(</span>data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>back<span class="Delimiter">(),</span> <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>value<span class="Delimiter">.</span>data<span class="Delimiter">)</span>-<span class="Comment">/*</span><span class="Comment">skip quotes</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Comment">/*</span><span class="Comment">bytes</span><span class="Comment">*/</span><span class="Delimiter">);</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Comment">// emit data byte by byte</span> +<span id="L60" class="LineNr"> 60 </span> data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L117'>line</a><span class="Delimiter">());</span> +<span id="L61" class="LineNr"> 61 </span> line& curr = data<span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>back<span class="Delimiter">();</span> +<span id="L62" class="LineNr"> 62 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip start quote</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>value<span class="Delimiter">.</span>data<span class="Delimiter">)</span>-<span class="Comment">/*</span><span class="Comment">skip end quote</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Normal">char</span> c = value<span class="Delimiter">.</span>data<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L64" class="LineNr"> 64 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> +<span id="L65" class="LineNr"> 65 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>data = <a href='030---operands.cc.html#L275'>hex_byte_to_string</a><span class="Delimiter">(</span>c<span class="Delimiter">);</span> +<span id="L66" class="LineNr"> 66 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">,</span> c<span class="Delimiter">));</span> +<span id="L67" class="LineNr"> 67 </span> <span class="Delimiter">}</span> +<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span> +<span id="L69" class="LineNr"> 69 </span> +<span id="L70" class="LineNr"> 70 </span><a href='011run.cc.html#L117'>line</a> label<span class="Delimiter">(</span>string s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L71" class="LineNr"> 71 </span> <a href='011run.cc.html#L117'>line</a> result<span class="Delimiter">;</span> +<span id="L72" class="LineNr"> 72 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> +<span id="L73" class="LineNr"> 73 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>data = <span class="Delimiter">(</span>s+<span class="Constant">":"</span><span class="Delimiter">);</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L75" class="LineNr"> 75 </span><span class="Delimiter">}</span> +<span id="L76" class="LineNr"> 76 </span> +<span id="L77" class="LineNr"> 77 </span><span class="Comment">//: Within strings, whitespace is significant. So we need to redo our instruction</span> +<span id="L78" class="LineNr"> 78 </span><span class="Comment">//: parsing.</span> +<span id="L79" class="LineNr"> 79 </span> +<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(scenarios parse_instruction_character_by_character)</span> +<span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(scenario instruction_with_string_literal)</span> +<span id="L82" class="LineNr"> 82 </span>a <span class="Constant">"abc def"</span> z <span class="Comment"># two spaces inside string</span> +<span id="L83" class="LineNr"> 83 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L84" class="LineNr"> 84 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: "abc def"</span> +<span id="L85" class="LineNr"> 85 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: z</span> +<span id="L86" class="LineNr"> 86 </span><span class="Comment"># no other words</span> +<span id="L87" class="LineNr"> 87 </span>$parse2: <span class="Constant">3</span> +<span id="L88" class="LineNr"> 88 </span> +<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">:(before "End Line Parsing Special-cases(line_data -> l)")</span> +<span id="L90" class="LineNr"> 90 </span><span class="Normal">if</span> <span class="Delimiter">(</span>line_data<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'"'</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// can cause false-positives, but we can handle them</span> +<span id="L91" class="LineNr"> 91 </span> parse_instruction_character_by_character<span class="Delimiter">(</span>line_data<span class="Delimiter">,</span> l<span class="Delimiter">);</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">}</span> +<span id="L94" class="LineNr"> 94 </span> +<span id="L95" class="LineNr"> 95 </span><span class="Delimiter">:(code)</span> +<span id="L96" class="LineNr"> 96 </span><span class="Normal">void</span> parse_instruction_character_by_character<span class="Delimiter">(</span><span class="Normal">const</span> string& line_data<span class="Delimiter">,</span> vector<line>& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Comment">// parse literals</span> +<span id="L98" class="LineNr"> 98 </span> istringstream in<span class="Delimiter">(</span>line_data<span class="Delimiter">);</span> +<span id="L99" class="LineNr"> 99 </span> in >> std::noskipws<span class="Delimiter">;</span> +<span id="L100" class="LineNr">100 </span> <a href='011run.cc.html#L117'>line</a> result<span class="Delimiter">;</span> +<span id="L101" class="LineNr">101 </span> <span class="Comment">// add tokens (words or strings) one by one</span> +<span id="L102" class="LineNr">102 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L103" class="LineNr">103 </span> <a href='038---literal_strings.cc.html#L136'>skip_whitespace</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span> +<span id="L104" class="LineNr">104 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L105" class="LineNr">105 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<span id="L106" class="LineNr">106 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// comment; drop rest of line</span> +<span id="L107" class="LineNr">107 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// line metadata; skip for now</span> +<span id="L108" class="LineNr">108 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'.'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L109" class="LineNr">109 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// comment token at end of line</span> +<span id="L110" class="LineNr">110 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> +<span id="L111" class="LineNr">111 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// '.' followed by space is comment token; skip</span> +<span id="L112" class="LineNr">112 </span> <span class="Delimiter">}</span> +<span id="L113" class="LineNr">113 </span> ostringstream w<span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span> w << c<span class="Delimiter">;</span> +<span id="L115" class="LineNr">115 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'"'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L116" class="LineNr">116 </span> <span class="Comment">// slurp until '"'</span> +<span id="L117" class="LineNr">117 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L118" class="LineNr">118 </span> in >> c<span class="Delimiter">;</span> +<span id="L119" class="LineNr">119 </span> w << c<span class="Delimiter">;</span> +<span id="L120" class="LineNr">120 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'"'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L121" class="LineNr">121 </span> <span class="Delimiter">}</span> +<span id="L122" class="LineNr">122 </span> <span class="Delimiter">}</span> +<span id="L123" class="LineNr">123 </span> <span class="Comment">// slurp any remaining characters until whitespace</span> +<span id="L124" class="LineNr">124 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>!isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">())</span> && <a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span class="Comment">// peek can sometimes trigger eof(), so do it first</span> +<span id="L125" class="LineNr">125 </span> in >> c<span class="Delimiter">;</span> +<span id="L126" class="LineNr">126 </span> w << c<span class="Delimiter">;</span> +<span id="L127" class="LineNr">127 </span> <span class="Delimiter">}</span> +<span id="L128" class="LineNr">128 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> +<span id="L129" class="LineNr">129 </span> <a href='011run.cc.html#L191'>parse_word</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>str<span class="Delimiter">(),</span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span> +<span id="L130" class="LineNr">130 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse2"</span><span class="Delimiter">)</span> << <span class="Constant">"word: "</span> << to_string<span class="Delimiter">(</span>result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">())</span> << end<span class="Delimiter">();</span> +<span id="L131" class="LineNr">131 </span> <span class="Delimiter">}</span> +<span id="L132" class="LineNr">132 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> +<span id="L133" class="LineNr">133 </span> out<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span> +<span id="L134" class="LineNr">134 </span><span class="Delimiter">}</span> +<span id="L135" class="LineNr">135 </span> +<span id="L136" class="LineNr">136 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L136'>skip_whitespace</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L137" class="LineNr">137 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L138" class="LineNr">138 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<span id="L139" class="LineNr">139 </span> <span class="Normal">else</span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L140" class="LineNr">140 </span> <span class="Delimiter">}</span> +<span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span> +<span id="L142" class="LineNr">142 </span> +<span id="L143" class="LineNr">143 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L143'>skip_comment</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L144" class="LineNr">144 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L145" class="LineNr">145 </span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<span id="L146" class="LineNr">146 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<span id="L147" class="LineNr">147 </span> <span class="Delimiter">}</span> +<span id="L148" class="LineNr">148 </span><span class="Delimiter">}</span> +<span id="L149" class="LineNr">149 </span> +<span id="L150" class="LineNr">150 </span><span class="Comment">// helper for tests</span> +<span id="L151" class="LineNr">151 </span><span class="Normal">void</span> parse_instruction_character_by_character<span class="Delimiter">(</span><span class="Normal">const</span> string& line_data<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L152" class="LineNr">152 </span> vector<line> out<span class="Delimiter">;</span> +<span id="L153" class="LineNr">153 </span> parse_instruction_character_by_character<span class="Delimiter">(</span>line_data<span class="Delimiter">,</span> out<span class="Delimiter">);</span> +<span id="L154" class="LineNr">154 </span><span class="Delimiter">}</span> +<span id="L155" class="LineNr">155 </span> +<span id="L156" class="LineNr">156 </span><span class="Delimiter">:(scenario parse2_comment_token_in_middle)</span> +<span id="L157" class="LineNr">157 </span>a <span class="Delimiter">.</span> z +<span id="L158" class="LineNr">158 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L159" class="LineNr">159 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: z</span> +<span id="L160" class="LineNr">160 </span><span class="traceAbsent">-parse2: <a href='011run.cc.html#L123'>word</a>: .</span> +<span id="L161" class="LineNr">161 </span><span class="Comment"># no other words</span> +<span id="L162" class="LineNr">162 </span>$parse2: <span class="Constant">2</span> +<span id="L163" class="LineNr">163 </span> +<span id="L164" class="LineNr">164 </span><span class="Delimiter">:(scenario parse2_word_starting_with_dot)</span> +<span id="L165" class="LineNr">165 </span>a <span class="Delimiter">.</span>b c +<span id="L166" class="LineNr">166 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L167" class="LineNr">167 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: .b</span> +<span id="L168" class="LineNr">168 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: c</span> +<span id="L169" class="LineNr">169 </span> +<span id="L170" class="LineNr">170 </span><span class="Delimiter">:(scenario parse2_comment_token_at_start)</span> +<span id="L171" class="LineNr">171 </span><span class="Delimiter">.</span> a b +<span id="L172" class="LineNr">172 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L173" class="LineNr">173 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b</span> +<span id="L174" class="LineNr">174 </span><span class="traceAbsent">-parse2: <a href='011run.cc.html#L123'>word</a>: .</span> +<span id="L175" class="LineNr">175 </span> +<span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario parse2_comment_token_at_end)</span> +<span id="L177" class="LineNr">177 </span>a b <span class="Delimiter">.</span> +<span id="L178" class="LineNr">178 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L179" class="LineNr">179 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b</span> +<span id="L180" class="LineNr">180 </span><span class="traceAbsent">-parse2: <a href='011run.cc.html#L123'>word</a>: .</span> +<span id="L181" class="LineNr">181 </span> +<span id="L182" class="LineNr">182 </span><span class="Delimiter">:(scenario parse2_word_starting_with_dot_at_start)</span> +<span id="L183" class="LineNr">183 </span><span class="Delimiter">.</span>a b c +<span id="L184" class="LineNr">184 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: .a</span> +<span id="L185" class="LineNr">185 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b</span> +<span id="L186" class="LineNr">186 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: c</span> +<span id="L187" class="LineNr">187 </span> +<span id="L188" class="LineNr">188 </span><span class="Delimiter">:(scenario parse2_metadata)</span> +<span id="L189" class="LineNr">189 </span><span class="Delimiter">.</span>a b/c d +<span id="L190" class="LineNr">190 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: .a</span> +<span id="L191" class="LineNr">191 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: b /c</span> +<span id="L192" class="LineNr">192 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: d</span> +<span id="L193" class="LineNr">193 </span> +<span id="L194" class="LineNr">194 </span><span class="Delimiter">:(scenario parse2_string_with_metadata)</span> +<span id="L195" class="LineNr">195 </span>a <span class="Constant">"bc def"</span>/disp32 g +<span id="L196" class="LineNr">196 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L197" class="LineNr">197 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: "bc def" /disp32</span> +<span id="L198" class="LineNr">198 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: g</span> +<span id="L199" class="LineNr">199 </span> +<span id="L200" class="LineNr">200 </span><span class="Delimiter">:(scenario parse2_string_with_metadata_at_end)</span> +<span id="L201" class="LineNr">201 </span>a <span class="Constant">"bc def"</span>/disp32 +<span id="L202" class="LineNr">202 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: a</span> +<span id="L203" class="LineNr">203 </span><span class="traceContains">+parse2: <a href='011run.cc.html#L123'>word</a>: "bc def" /disp32</span> +<span id="L204" class="LineNr">204 </span> +<span id="L205" class="LineNr">205 </span><span class="Delimiter">:(code)</span> +<span id="L206" class="LineNr">206 </span><span class="Normal">void</span> <a href='038---literal_strings.cc.html#L206'>test_parse2_string_with_metadata_at_end_of_line_without_newline</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L207" class="LineNr">207 </span> parse_instruction_character_by_character<span class="Delimiter">(</span> +<span id="L208" class="LineNr">208 </span> <span class="Constant">"68/push </span><span class="cSpecial">\"</span><span class="Constant">test</span><span class="cSpecial">\"</span><span class="Constant">/f"</span> <span class="Comment">// no newline, which is how calls from parse() will look</span> +<span id="L209" class="LineNr">209 </span> <span class="Delimiter">);</span> +<span id="L210" class="LineNr">210 </span> <a href='003trace.cc.html#L258'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> +<span id="L211" class="LineNr">211 </span> <span class="Constant">"parse2: <a href='011run.cc.html#L123'>word</a>: 68 /push^D"</span> +<span id="L212" class="LineNr">212 </span> <span class="Constant">"parse2: <a href='011run.cc.html#L123'>word</a>: </span><span class="cSpecial">\"</span><span class="Constant">test</span><span class="cSpecial">\"</span><span class="Constant"> /f^D"</span> +<span id="L213" class="LineNr">213 </span> <span class="Delimiter">);</span> +<span id="L214" class="LineNr">214 </span><span class="Delimiter">}</span> </pre> </body> </html> diff --git a/html/subx/040---tests.cc.html b/html/subx/040---tests.cc.html index 52be02b3..b51870bc 100644 --- a/html/subx/040---tests.cc.html +++ b/html/subx/040---tests.cc.html @@ -66,7 +66,7 @@ if ('onhashchange' in window) { <span id="L4" class="LineNr"> 4 </span><span class="Comment">//: knows about labels and will emit labels for previous layers to transform.</span> <span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(after "Begin Transforms")</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment">// Begin Level-4 Transforms</span> -<span id="L7" class="LineNr"> 7 </span><a href='011run.cc.html#L207'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>create_test_function<span class="Delimiter">);</span> +<span id="L7" class="LineNr"> 7 </span><a href='011run.cc.html#L229'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>create_test_function<span class="Delimiter">);</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment">// End Level-4 Transforms</span> <span id="L9" class="LineNr"> 9 </span> <span id="L10" class="LineNr">10 </span><span class="Delimiter">:(scenario run_test)</span> @@ -87,21 +87,21 @@ if ('onhashchange' in window) { <span id="L25" class="LineNr">25 </span><span class="Normal">void</span> create_test_function<span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L26" class="LineNr">26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L27" class="LineNr">27 </span> segment& <a href='031check_operands.cc.html#L14'>code</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L100'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L28" class="LineNr">28 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- create 'run_tests'"</span> << <a href='003trace.cc.html#L230'>end</a><span class="Delimiter">();</span> +<span id="L28" class="LineNr">28 </span> <a href='003trace.cc.html#L204'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- create 'run_tests'"</span> << end<span class="Delimiter">();</span> <span id="L29" class="LineNr">29 </span> vector<line> <a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">;</span> <span id="L30" class="LineNr">30 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L31" class="LineNr">31 </span> line& inst = <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L32" class="LineNr">32 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L33" class="LineNr">33 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> -<span id="L34" class="LineNr">34 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// not a label</span> -<span id="L35" class="LineNr">35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">,</span> <span class="Constant">"test_"</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L36" class="LineNr">36 </span> string fn = <a href='035labels.cc.html#L166'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a><span class="Delimiter">);</span> +<span id="L34" class="LineNr">34 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// not a label</span> +<span id="L35" class="LineNr">35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">,</span> <span class="Constant">"test_"</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L36" class="LineNr">36 </span> string fn = <a href='035labels.cc.html#L198'>drop_last</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L37" class="LineNr">37 </span> <a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>call<span class="Delimiter">(</span>fn<span class="Delimiter">));</span> <span id="L38" class="LineNr">38 </span> <span class="Delimiter">}</span> <span id="L39" class="LineNr">39 </span> <span class="Delimiter">}</span> <span id="L40" class="LineNr">40 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// no tests found</span> <span id="L41" class="LineNr">41 </span> <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>label<span class="Delimiter">(</span><span class="Constant">"run_tests"</span><span class="Delimiter">));</span> -<span id="L42" class="LineNr">42 </span> <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">(),</span> <a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> <a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">.</span><a href='003trace.cc.html#L230'>end</a><span class="Delimiter">());</span> +<span id="L42" class="LineNr">42 </span> <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>end<span class="Delimiter">(),</span> <a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> <a href='040---tests.cc.html#L29'>new_insts</a><span class="Delimiter">.</span>end<span class="Delimiter">());</span> <span id="L43" class="LineNr">43 </span> <a href='031check_operands.cc.html#L14'>code</a><span class="Delimiter">.</span><a href='011run.cc.html#L109'>lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>ret<span class="Delimiter">());</span> <span id="L44" class="LineNr">44 </span><span class="Delimiter">}</span> <span id="L45" class="LineNr">45 </span> @@ -127,14 +127,14 @@ if ('onhashchange' in window) { <span id="L65" class="LineNr">65 </span> <span id="L66" class="LineNr">66 </span><a href='011run.cc.html#L123'>word</a> call<span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L67" class="LineNr">67 </span> <a href='011run.cc.html#L123'>word</a> result<span class="Delimiter">;</span> -<span id="L68" class="LineNr">68 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = <span class="Constant">"e8"</span><span class="Delimiter">;</span> +<span id="L68" class="LineNr">68 </span> result<span class="Delimiter">.</span>data = <span class="Constant">"e8"</span><span class="Delimiter">;</span> <span id="L69" class="LineNr">69 </span> result<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">"call"</span><span class="Delimiter">);</span> <span id="L70" class="LineNr">70 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L71" class="LineNr">71 </span><span class="Delimiter">}</span> <span id="L72" class="LineNr">72 </span> <span id="L73" class="LineNr">73 </span><a href='011run.cc.html#L123'>word</a> disp32<span class="Delimiter">(</span>string s<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L74" class="LineNr">74 </span> <a href='011run.cc.html#L123'>word</a> result<span class="Delimiter">;</span> -<span id="L75" class="LineNr">75 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L125'>data</a> = s<span class="Delimiter">;</span> +<span id="L75" class="LineNr">75 </span> result<span class="Delimiter">.</span>data = s<span class="Delimiter">;</span> <span id="L76" class="LineNr">76 </span> result<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">"disp32"</span><span class="Delimiter">);</span> <span id="L77" class="LineNr">77 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L78" class="LineNr">78 </span><span class="Delimiter">}</span> @@ -142,7 +142,7 @@ if ('onhashchange' in window) { <span id="L80" class="LineNr">80 </span><a href='011run.cc.html#L117'>line</a> ret<span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L81" class="LineNr">81 </span> <a href='011run.cc.html#L117'>line</a> result<span class="Delimiter">;</span> <span id="L82" class="LineNr">82 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L123'>word</a><span class="Delimiter">());</span> -<span id="L83" class="LineNr">83 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L125'>data</a> = <span class="Constant">"c3"</span><span class="Delimiter">;</span> +<span id="L83" class="LineNr">83 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>data = <span class="Constant">"c3"</span><span class="Delimiter">;</span> <span id="L84" class="LineNr">84 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L118'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">"return"</span><span class="Delimiter">);</span> <span id="L85" class="LineNr">85 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L86" class="LineNr">86 </span><span class="Delimiter">}</span> diff --git a/html/subx/050write_stderr.subx.html b/html/subx/050write_stderr.subx.html new file mode 100644 index 00000000..63fb619c --- /dev/null +++ b/html/subx/050write_stderr.subx.html @@ -0,0 +1,97 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - subx/050write_stderr.subx</title> +<meta name="Generator" content="Vim/8.0"> +<meta name="plugin-version" content="vim7.4_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.LineNr { color: #444444; } +.Delimiter { color: #800080; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span>== code +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L6" class="LineNr"> 6 </span> +<span id="L7" class="LineNr"> 7 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L8" class="LineNr"> 8 </span> <span class="Comment"># prolog</span> +<span id="L9" class="LineNr"> 9 </span> 55/push-EBP +<span id="L10" class="LineNr">10 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L11" class="LineNr">11 </span> <span class="Comment"># save registers</span> +<span id="L12" class="LineNr">12 </span> 50/push-EAX +<span id="L13" class="LineNr">13 </span> 51/push-ECX +<span id="L14" class="LineNr">14 </span> 52/push-EDX +<span id="L15" class="LineNr">15 </span> 53/push-EBX +<span id="L16" class="LineNr">16 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> +<span id="L17" class="LineNr">17 </span> <span class="Comment"># fd = 2 (stderr)</span> +<span id="L18" class="LineNr">18 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy to EBX</span> +<span id="L19" class="LineNr">19 </span> <span class="Comment"># x = s+4</span> +<span id="L20" class="LineNr">20 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span> +<span id="L21" class="LineNr">21 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ECX</span> +<span id="L22" class="LineNr">22 </span> <span class="Comment"># size = *s</span> +<span id="L23" class="LineNr">23 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDX</span> +<span id="L24" class="LineNr">24 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L25" class="LineNr">25 </span> <span class="Comment"># call write()</span> +<span id="L26" class="LineNr">26 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy to EAX</span> +<span id="L27" class="LineNr">27 </span> cd/syscall 0x80/imm8 +<span id="L28" class="LineNr">28 </span> <span class="Comment"># restore registers</span> +<span id="L29" class="LineNr">29 </span> 5b/pop-to-EBX +<span id="L30" class="LineNr">30 </span> 5a/pop-to-EDX +<span id="L31" class="LineNr">31 </span> 59/pop-to-ECX +<span id="L32" class="LineNr">32 </span> 58/pop-to-EAX +<span id="L33" class="LineNr">33 </span> <span class="Comment"># end</span> +<span id="L34" class="LineNr">34 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L35" class="LineNr">35 </span> 5d/pop-to-EBP +<span id="L36" class="LineNr">36 </span> c3/return +<span id="L37" class="LineNr">37 </span> +<span id="L38" class="LineNr">38 </span><span class="Comment"># vim:ft=subx:nowrap:tw&</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/051test.subx.html b/html/subx/051test.subx.html new file mode 100644 index 00000000..225e011d --- /dev/null +++ b/html/subx/051test.subx.html @@ -0,0 +1,124 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - subx/051test.subx</title> +<meta name="Generator" content="Vim/8.0"> +<meta name="plugin-version" content="vim7.4_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.LineNr { color: #444444; } +.Delimiter { color: #800080; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span>== code +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L6" class="LineNr"> 6 </span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> +<span id="L8" class="LineNr"> 8 </span>check_ints_equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> +<span id="L9" class="LineNr"> 9 </span> <span class="Comment"># prolog</span> +<span id="L10" class="LineNr">10 </span> 55/push-EBP +<span id="L11" class="LineNr">11 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L12" class="LineNr">12 </span> <span class="Comment"># save registers</span> +<span id="L13" class="LineNr">13 </span> 51/push-ECX +<span id="L14" class="LineNr">14 </span> 53/push-EBX +<span id="L15" class="LineNr">15 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> +<span id="L16" class="LineNr">16 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span> +<span id="L17" class="LineNr">17 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EBX</span> +<span id="L18" class="LineNr">18 </span> <span class="Comment"># if EAX == b/EBX</span> +<span id="L19" class="LineNr">19 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> +<span id="L20" class="LineNr">20 </span> 75/jump-if-unequal $check_ints_equal:else/disp8 +<span id="L21" class="LineNr">21 </span> <span class="Comment"># print('.')</span> +<span id="L22" class="LineNr">22 </span> <span class="Comment"># push args</span> +<span id="L23" class="LineNr">23 </span> 68/push "."/imm32 +<span id="L24" class="LineNr">24 </span> <span class="Comment"># call</span> +<span id="L25" class="LineNr">25 </span> e8/call write_stderr/disp32 +<span id="L26" class="LineNr">26 </span> <span class="Comment"># discard arg</span> +<span id="L27" class="LineNr">27 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L28" class="LineNr">28 </span> <span class="Comment"># return</span> +<span id="L29" class="LineNr">29 </span> eb/jump $check_ints_equal:end/disp8 +<span id="L30" class="LineNr">30 </span> <span class="Comment"># else:</span> +<span id="L31" class="LineNr">31 </span>$check_ints_equal:else: +<span id="L32" class="LineNr">32 </span> <span class="Comment"># copy msg into ECX</span> +<span id="L33" class="LineNr">33 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x10/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+16) to ECX</span> +<span id="L34" class="LineNr">34 </span> <span class="Comment"># print(ECX)</span> +<span id="L35" class="LineNr">35 </span> <span class="Comment"># push args</span> +<span id="L36" class="LineNr">36 </span> 51/push-ECX +<span id="L37" class="LineNr">37 </span> <span class="Comment"># call</span> +<span id="L38" class="LineNr">38 </span> e8/call write_stderr/disp32 +<span id="L39" class="LineNr">39 </span> <span class="Comment"># discard arg</span> +<span id="L40" class="LineNr">40 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L41" class="LineNr">41 </span> <span class="Comment"># print newline</span> +<span id="L42" class="LineNr">42 </span> <span class="Comment"># push args</span> +<span id="L43" class="LineNr">43 </span> 68/push Newline/imm32 +<span id="L44" class="LineNr">44 </span> <span class="Comment"># call</span> +<span id="L45" class="LineNr">45 </span> e8/call write_stderr/disp32 +<span id="L46" class="LineNr">46 </span> <span class="Comment"># discard arg</span> +<span id="L47" class="LineNr">47 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L48" class="LineNr">48 </span>$check_ints_equal:end: +<span id="L49" class="LineNr">49 </span> <span class="Comment"># restore registers</span> +<span id="L50" class="LineNr">50 </span> 5b/pop-to-EBX +<span id="L51" class="LineNr">51 </span> 59/pop-to-ECX +<span id="L52" class="LineNr">52 </span> <span class="Comment"># end</span> +<span id="L53" class="LineNr">53 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L54" class="LineNr">54 </span> 5d/pop-to-EBP +<span id="L55" class="LineNr">55 </span> c3/return +<span id="L56" class="LineNr">56 </span> +<span id="L57" class="LineNr">57 </span>== data +<span id="L58" class="LineNr">58 </span> +<span id="L59" class="LineNr">59 </span>Newline: +<span id="L60" class="LineNr">60 </span> <span class="Comment"># size</span> +<span id="L61" class="LineNr">61 </span> 01 00 00 00 +<span id="L62" class="LineNr">62 </span> <span class="Comment"># data</span> +<span id="L63" class="LineNr">63 </span> 0a/newline +<span id="L64" class="LineNr">64 </span> +<span id="L65" class="LineNr">65 </span><span class="Comment"># vim:ft=subx:nowrap:tw&</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/052kernel_string_equal.subx.html b/html/subx/052kernel_string_equal.subx.html new file mode 100644 index 00000000..5bf5d1d5 --- /dev/null +++ b/html/subx/052kernel_string_equal.subx.html @@ -0,0 +1,320 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - subx/052kernel_string_equal.subx</title> +<meta name="Generator" content="Vim/8.0"> +<meta name="plugin-version" content="vim7.4_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.LineNr { color: #444444; } +.Delimiter { color: #800080; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +.SalientComment { color: #00ffff; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## Checking null-terminated ascii strings.</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># By default we create strings with a 4-byte length prefix rather than a null suffix.</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># However we still need null-prefixed strings when interacting with the Linux</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># kernel in a few places. This layer implements a function for comparing</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># a null-terminated 'kernel string' with a length-prefixed 'SubX string'.</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment">#</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># $ subx translate 05[0-2]*.subx -o /tmp/tmp52</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># $ subx run /tmp/tmp52 # runs a series of tests</span> +<span id="L11" class="LineNr"> 11 </span><span class="Comment"># ...... # all tests pass</span> +<span id="L12" class="LineNr"> 12 </span><span class="Comment">#</span> +<span id="L13" class="LineNr"> 13 </span><span class="Comment"># (We can't yet run the tests when given a "test" commandline argument,</span> +<span id="L14" class="LineNr"> 14 </span><span class="Comment"># because checking for it would require the function being tested! Breakage</span> +<span id="L15" class="LineNr"> 15 </span><span class="Comment"># would cause tests to not run, rather than to fail as we'd like.)</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span>== code +<span id="L18" class="LineNr"> 18 </span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L21" class="LineNr"> 21 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L22" class="LineNr"> 22 </span> +<span id="L23" class="LineNr"> 23 </span><span class="Comment"># main: (if this is the last file loaded)</span> +<span id="L24" class="LineNr"> 24 </span> e8/call run_tests/disp32 <span class="Comment"># 'run_tests' is a function created automatically by SubX. It calls all functions that start with 'test_'.</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Comment"># exit(EAX)</span> +<span id="L26" class="LineNr"> 26 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L27" class="LineNr"> 27 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L28" class="LineNr"> 28 </span> cd/syscall 0x80/imm8 +<span id="L29" class="LineNr"> 29 </span> +<span id="L30" class="LineNr"> 30 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> +<span id="L31" class="LineNr"> 31 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> +<span id="L32" class="LineNr"> 32 </span>kernel_string_equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Comment"># prolog</span> +<span id="L34" class="LineNr"> 34 </span> 55/push-EBP +<span id="L35" class="LineNr"> 35 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Comment"># save registers</span> +<span id="L37" class="LineNr"> 37 </span> 51/push-ECX +<span id="L38" class="LineNr"> 38 </span> 52/push-EDX +<span id="L39" class="LineNr"> 39 </span> 53/push-EBX +<span id="L40" class="LineNr"> 40 </span> 56/push-ESI +<span id="L41" class="LineNr"> 41 </span> 57/push-EDI +<span id="L42" class="LineNr"> 42 </span> +<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># pseudocode:</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># initialize n = b.length</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># initialize s1 = s</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># initialize s2 = b.data</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Comment"># i = 0</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Comment"># for (i = 0; i < n; ++n)</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># c1 = *s1</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Comment"># c2 = *s2</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Comment"># if c1 == 0</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># return false</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Comment"># if c1 != c2</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># return false</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Comment"># return *s1 == 0</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># initialize s into EDI</span> +<span id="L57" class="LineNr"> 57 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 7/r32/EDI 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDI</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># initialize benchmark length n into EDX</span> +<span id="L59" class="LineNr"> 59 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EDX</span> +<span id="L60" class="LineNr"> 60 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Comment"># initialize benchmark data into ESI</span> +<span id="L62" class="LineNr"> 62 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 6/r32/ESI 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to ESI</span> +<span id="L63" class="LineNr"> 63 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESI</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># initialize loop counter i into ECX</span> +<span id="L65" class="LineNr"> 65 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32/exit <span class="Comment"># copy to ECX</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># while (i/ECX < n/EDX)</span> +<span id="L67" class="LineNr"> 67 </span>$kernel_string_loop: +<span id="L68" class="LineNr"> 68 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare ECX with EDX</span> +<span id="L69" class="LineNr"> 69 </span> 74/jump-if-equal $kernel_string_break/disp8 +<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># c1/EAX, c2/EBX = *s, *benchmark</span> +<span id="L71" class="LineNr"> 71 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> +<span id="L72" class="LineNr"> 72 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> +<span id="L73" class="LineNr"> 73 </span> bb/copy 0/imm32 <span class="Comment"># clear EBX</span> +<span id="L74" class="LineNr"> 74 </span> 8a/copy 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ESI to lower byte of EBX</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># if (c1 == 0) return false</span> +<span id="L76" class="LineNr"> 76 </span> 3d/compare-EAX 0/imm32 +<span id="L77" class="LineNr"> 77 </span> 74/jump-if-equal $kernel_string_fail/disp8 +<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># if (c1 != c2) return false</span> +<span id="L79" class="LineNr"> 79 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> +<span id="L80" class="LineNr"> 80 </span> 75/jump-if-not-equal $kernel_string_fail/disp8 +<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># ++s1, ++s2, ++i</span> +<span id="L82" class="LineNr"> 82 </span> 41/inc-ECX +<span id="L83" class="LineNr"> 83 </span> 46/inc-ESI +<span id="L84" class="LineNr"> 84 </span> 47/inc-EDI +<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># end while</span> +<span id="L86" class="LineNr"> 86 </span> eb/jump $kernel_string_loop/disp8 +<span id="L87" class="LineNr"> 87 </span>$kernel_string_break: +<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># if (*s/EDI == 0) return true</span> +<span id="L89" class="LineNr"> 89 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> +<span id="L90" class="LineNr"> 90 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> +<span id="L91" class="LineNr"> 91 </span> 3d/compare-EAX 0/imm32 +<span id="L92" class="LineNr"> 92 </span> 75/jump-if-not-equal $kernel_string_fail/disp8 +<span id="L93" class="LineNr"> 93 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L94" class="LineNr"> 94 </span> eb/jump $kernel_string_end/disp8 +<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># return false</span> +<span id="L96" class="LineNr"> 96 </span>$kernel_string_fail: +<span id="L97" class="LineNr"> 97 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EAX</span> +<span id="L98" class="LineNr"> 98 </span> +<span id="L99" class="LineNr"> 99 </span>$kernel_string_end: +<span id="L100" class="LineNr">100 </span> <span class="Comment"># restore registers</span> +<span id="L101" class="LineNr">101 </span> 5f/pop-to-EDI +<span id="L102" class="LineNr">102 </span> 5e/pop-to-ESI +<span id="L103" class="LineNr">103 </span> 5b/pop-to-EBX +<span id="L104" class="LineNr">104 </span> 5a/pop-to-EDX +<span id="L105" class="LineNr">105 </span> 59/pop-to-ECX +<span id="L106" class="LineNr">106 </span> <span class="Comment"># end</span> +<span id="L107" class="LineNr">107 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L108" class="LineNr">108 </span> 5d/pop-to-EBP +<span id="L109" class="LineNr">109 </span> c3/return +<span id="L110" class="LineNr">110 </span> +<span id="L111" class="LineNr">111 </span><span class="SalientComment">## tests</span> +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span>test_compare_null_kernel_string_with_empty_array: +<span id="L114" class="LineNr">114 </span> <span class="Comment"># EAX = kernel_string_equal(Null_kernel_string, "")</span> +<span id="L115" class="LineNr">115 </span> <span class="Comment"># push args</span> +<span id="L116" class="LineNr">116 </span> 68/push ""/imm32 +<span id="L117" class="LineNr">117 </span> 68/push Null_kernel_string/imm32 +<span id="L118" class="LineNr">118 </span> <span class="Comment"># call</span> +<span id="L119" class="LineNr">119 </span> e8/call kernel_string_equal/disp32 +<span id="L120" class="LineNr">120 </span> <span class="Comment"># discard args</span> +<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L122" class="LineNr">122 </span> <span class="Comment"># call check_ints_equal(EAX, 1, msg)</span> +<span id="L123" class="LineNr">123 </span> <span class="Comment"># push args</span> +<span id="L124" class="LineNr">124 </span> 68/push "F - test_compare_null_kernel_string_with_empty_array"/imm32 +<span id="L125" class="LineNr">125 </span> 68/push 1/imm32/true +<span id="L126" class="LineNr">126 </span> 50/push-EAX +<span id="L127" class="LineNr">127 </span> <span class="Comment"># call</span> +<span id="L128" class="LineNr">128 </span> e8/call check_ints_equal/disp32 +<span id="L129" class="LineNr">129 </span> <span class="Comment"># discard args</span> +<span id="L130" class="LineNr">130 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L131" class="LineNr">131 </span> c3/return +<span id="L132" class="LineNr">132 </span> +<span id="L133" class="LineNr">133 </span>test_compare_null_kernel_string_with_non_empty_array: +<span id="L134" class="LineNr">134 </span> <span class="Comment"># EAX = kernel_string_equal(Null_kernel_string, "Abc")</span> +<span id="L135" class="LineNr">135 </span> <span class="Comment"># push args</span> +<span id="L136" class="LineNr">136 </span> 68/push "Abc"/imm32 +<span id="L137" class="LineNr">137 </span> 68/push Null_kernel_string/imm32 +<span id="L138" class="LineNr">138 </span> <span class="Comment"># call</span> +<span id="L139" class="LineNr">139 </span> e8/call kernel_string_equal/disp32 +<span id="L140" class="LineNr">140 </span> <span class="Comment"># discard args</span> +<span id="L141" class="LineNr">141 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L142" class="LineNr">142 </span> <span class="Comment"># call check_ints_equal(EAX, 0, msg)</span> +<span id="L143" class="LineNr">143 </span> <span class="Comment"># push args</span> +<span id="L144" class="LineNr">144 </span> 68/push "F - test_compare_null_kernel_string_with_non_empty_array"/imm32 +<span id="L145" class="LineNr">145 </span> 68/push 0/imm32/false +<span id="L146" class="LineNr">146 </span> 50/push-EAX +<span id="L147" class="LineNr">147 </span> <span class="Comment"># call</span> +<span id="L148" class="LineNr">148 </span> e8/call check_ints_equal/disp32 +<span id="L149" class="LineNr">149 </span> <span class="Comment"># discard args</span> +<span id="L150" class="LineNr">150 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L151" class="LineNr">151 </span> c3/return +<span id="L152" class="LineNr">152 </span> +<span id="L153" class="LineNr">153 </span>test_compare_kernel_string_with_equal_array: +<span id="L154" class="LineNr">154 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Abc")</span> +<span id="L155" class="LineNr">155 </span> <span class="Comment"># push args</span> +<span id="L156" class="LineNr">156 </span> 68/push "Abc"/imm32 +<span id="L157" class="LineNr">157 </span> 68/push Abc_kernel_string/imm32 +<span id="L158" class="LineNr">158 </span> <span class="Comment"># call</span> +<span id="L159" class="LineNr">159 </span> e8/call kernel_string_equal/disp32 +<span id="L160" class="LineNr">160 </span> <span class="Comment"># discard args</span> +<span id="L161" class="LineNr">161 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L162" class="LineNr">162 </span> <span class="Comment"># call check_ints_equal(EAX, 1, msg)</span> +<span id="L163" class="LineNr">163 </span> <span class="Comment"># push args</span> +<span id="L164" class="LineNr">164 </span> 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 +<span id="L165" class="LineNr">165 </span> 68/push 1/imm32/true +<span id="L166" class="LineNr">166 </span> 50/push-EAX +<span id="L167" class="LineNr">167 </span> <span class="Comment"># call</span> +<span id="L168" class="LineNr">168 </span> e8/call check_ints_equal/disp32 +<span id="L169" class="LineNr">169 </span> <span class="Comment"># discard args</span> +<span id="L170" class="LineNr">170 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L171" class="LineNr">171 </span> c3/return +<span id="L172" class="LineNr">172 </span> +<span id="L173" class="LineNr">173 </span>test_compare_kernel_string_with_inequal_array: +<span id="L174" class="LineNr">174 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Adc")</span> +<span id="L175" class="LineNr">175 </span> <span class="Comment"># push args</span> +<span id="L176" class="LineNr">176 </span> 68/push "Adc"/imm32 +<span id="L177" class="LineNr">177 </span> 68/push Abc_kernel_string/imm32 +<span id="L178" class="LineNr">178 </span> <span class="Comment"># call</span> +<span id="L179" class="LineNr">179 </span> e8/call kernel_string_equal/disp32 +<span id="L180" class="LineNr">180 </span> <span class="Comment"># discard args</span> +<span id="L181" class="LineNr">181 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L182" class="LineNr">182 </span> <span class="Comment"># call check_ints_equal(EAX, 0, msg)</span> +<span id="L183" class="LineNr">183 </span> <span class="Comment"># push args</span> +<span id="L184" class="LineNr">184 </span> 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 +<span id="L185" class="LineNr">185 </span> 68/push 0/imm32/false +<span id="L186" class="LineNr">186 </span> 50/push-EAX +<span id="L187" class="LineNr">187 </span> <span class="Comment"># call</span> +<span id="L188" class="LineNr">188 </span> e8/call check_ints_equal/disp32 +<span id="L189" class="LineNr">189 </span> <span class="Comment"># discard args</span> +<span id="L190" class="LineNr">190 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L191" class="LineNr">191 </span> c3/return +<span id="L192" class="LineNr">192 </span> +<span id="L193" class="LineNr">193 </span>test_compare_kernel_string_with_empty_array: +<span id="L194" class="LineNr">194 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "")</span> +<span id="L195" class="LineNr">195 </span> <span class="Comment"># push args</span> +<span id="L196" class="LineNr">196 </span> 68/push ""/imm32 +<span id="L197" class="LineNr">197 </span> 68/push Abc_kernel_string/imm32 +<span id="L198" class="LineNr">198 </span> <span class="Comment"># call</span> +<span id="L199" class="LineNr">199 </span> e8/call kernel_string_equal/disp32 +<span id="L200" class="LineNr">200 </span> <span class="Comment"># discard args</span> +<span id="L201" class="LineNr">201 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L202" class="LineNr">202 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> +<span id="L203" class="LineNr">203 </span> <span class="Comment"># push args</span> +<span id="L204" class="LineNr">204 </span> 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 +<span id="L205" class="LineNr">205 </span> 68/push 0/imm32/false +<span id="L206" class="LineNr">206 </span> 50/push-EAX +<span id="L207" class="LineNr">207 </span> <span class="Comment"># call</span> +<span id="L208" class="LineNr">208 </span> e8/call check_ints_equal/disp32 +<span id="L209" class="LineNr">209 </span> <span class="Comment"># discard args</span> +<span id="L210" class="LineNr">210 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L211" class="LineNr">211 </span> c3/return +<span id="L212" class="LineNr">212 </span> +<span id="L213" class="LineNr">213 </span>test_compare_kernel_string_with_shorter_array: +<span id="L214" class="LineNr">214 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Ab")</span> +<span id="L215" class="LineNr">215 </span> <span class="Comment"># push args</span> +<span id="L216" class="LineNr">216 </span> 68/push "Ab"/imm32 +<span id="L217" class="LineNr">217 </span> 68/push Abc_kernel_string/imm32 +<span id="L218" class="LineNr">218 </span> <span class="Comment"># call</span> +<span id="L219" class="LineNr">219 </span> e8/call kernel_string_equal/disp32 +<span id="L220" class="LineNr">220 </span> <span class="Comment"># discard args</span> +<span id="L221" class="LineNr">221 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L222" class="LineNr">222 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> +<span id="L223" class="LineNr">223 </span> <span class="Comment"># push args</span> +<span id="L224" class="LineNr">224 </span> 68/push "F - test_compare_kernel_string_with_shorter_array"/imm32 +<span id="L225" class="LineNr">225 </span> 68/push 0/imm32/false +<span id="L226" class="LineNr">226 </span> 50/push-EAX +<span id="L227" class="LineNr">227 </span> <span class="Comment"># call</span> +<span id="L228" class="LineNr">228 </span> e8/call check_ints_equal/disp32 +<span id="L229" class="LineNr">229 </span> <span class="Comment"># discard args</span> +<span id="L230" class="LineNr">230 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L231" class="LineNr">231 </span> c3/return +<span id="L232" class="LineNr">232 </span> +<span id="L233" class="LineNr">233 </span>test_compare_kernel_string_with_longer_array: +<span id="L234" class="LineNr">234 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Abcd")</span> +<span id="L235" class="LineNr">235 </span> <span class="Comment"># push args</span> +<span id="L236" class="LineNr">236 </span> 68/push "Abcd"/imm32 +<span id="L237" class="LineNr">237 </span> 68/push Abc_kernel_string/imm32 +<span id="L238" class="LineNr">238 </span> <span class="Comment"># call</span> +<span id="L239" class="LineNr">239 </span> e8/call kernel_string_equal/disp32 +<span id="L240" class="LineNr">240 </span> <span class="Comment"># discard args</span> +<span id="L241" class="LineNr">241 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L242" class="LineNr">242 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> +<span id="L243" class="LineNr">243 </span> <span class="Comment"># push args</span> +<span id="L244" class="LineNr">244 </span> 68/push "F - test_compare_kernel_string_with_longer_array"/imm32 +<span id="L245" class="LineNr">245 </span> 68/push 0/imm32/false +<span id="L246" class="LineNr">246 </span> 50/push-EAX +<span id="L247" class="LineNr">247 </span> <span class="Comment"># call</span> +<span id="L248" class="LineNr">248 </span> e8/call check_ints_equal/disp32 +<span id="L249" class="LineNr">249 </span> <span class="Comment"># discard args</span> +<span id="L250" class="LineNr">250 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L251" class="LineNr">251 </span> c3/return +<span id="L252" class="LineNr">252 </span> +<span id="L253" class="LineNr">253 </span>== data +<span id="L254" class="LineNr">254 </span> +<span id="L255" class="LineNr">255 </span>Null_kernel_string: +<span id="L256" class="LineNr">256 </span> 00/null +<span id="L257" class="LineNr">257 </span>Abc_kernel_string: +<span id="L258" class="LineNr">258 </span> 41/A 62/b 63/c 00/null +<span id="L259" class="LineNr">259 </span> +<span id="L260" class="LineNr">260 </span><span class="Comment"># vim:ft=subx:nowrap:tw&</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/apps/crenshaw2-1.subx.html b/html/subx/apps/crenshaw2-1.subx.html index c01985bb..8ac601ec 100644 --- a/html/subx/apps/crenshaw2-1.subx.html +++ b/html/subx/apps/crenshaw2-1.subx.html @@ -17,7 +17,6 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } .Delimiter { color: #800080; } -.Folded { color: #a8a8a8; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -58,8 +57,8 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## port of <a href="https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas">https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas</a></span> <span id="L2" class="LineNr"> 2 </span><span class="Comment"># corresponds to the section "single digits" in <a href="https://compilers.iecc.com/crenshaw/tutor2.txt">https://compilers.iecc.com/crenshaw/tutor2.txt</a></span> <span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate apps/crenshaw2.1.subx crenshaw 2.1</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate *.subx apps/crenshaw2.1.subx -o crenshaw 2.1</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ echo '3' |subx run apps/crenshaw2.1 |xxd -</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected output:</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># TODO</span> @@ -82,13 +81,13 @@ if ('onhashchange' in window) { <span id="L25" class="LineNr"> 25 </span> <span class="Comment"># call</span> <span id="L26" class="LineNr"> 26 </span> e8/call abort/disp32 <span id="L27" class="LineNr"> 27 </span> <span class="Comment"># discard arg</span> -<span id="L28" class="LineNr"> 28 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L28" class="LineNr"> 28 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L29" class="LineNr"> 29 </span> <span class="Comment"># exit(0)</span> -<span id="L30" class="LineNr"> 30 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy 0 to EBX</span> -<span id="L31" class="LineNr"> 31 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L30" class="LineNr"> 30 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EBX</span> +<span id="L31" class="LineNr"> 31 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L32" class="LineNr"> 32 </span> cd/syscall 0x80/imm8 <span id="L33" class="LineNr"> 33 </span> -<span id="L34" class="LineNr"> 34 </span><span class="SalientComment">## compiler helpers</span> +<span id="L34" class="LineNr"> 34 </span><span class="SalientComment">## helpers</span> <span id="L35" class="LineNr"> 35 </span> <span id="L36" class="LineNr"> 36 </span><span class="Comment"># print error message and exit</span> <span id="L37" class="LineNr"> 37 </span><span class="Comment"># really maps to the 'Expected' function in Crenshaw</span> @@ -99,10 +98,10 @@ if ('onhashchange' in window) { <span id="L42" class="LineNr"> 42 </span> <span class="Comment"># call</span> <span id="L43" class="LineNr"> 43 </span> e8/call error/disp32 <span id="L44" class="LineNr"> 44 </span> <span class="Comment"># discard arg</span> -<span id="L45" class="LineNr"> 45 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L45" class="LineNr"> 45 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L46" class="LineNr"> 46 </span> <span class="Comment"># exit(1)</span> -<span id="L47" class="LineNr"> 47 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L48" class="LineNr"> 48 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L47" class="LineNr"> 47 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EBX</span> +<span id="L48" class="LineNr"> 48 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L49" class="LineNr"> 49 </span> cd/syscall 0x80/imm8 <span id="L50" class="LineNr"> 50 </span> <span id="L51" class="LineNr"> 51 </span><span class="Comment"># print out "Error: #{s} expected\n" to stderr</span> @@ -113,143 +112,63 @@ if ('onhashchange' in window) { <span id="L56" class="LineNr"> 56 </span> <span class="Comment"># call</span> <span id="L57" class="LineNr"> 57 </span> e8/call write_stderr/disp32 <span id="L58" class="LineNr"> 58 </span> <span class="Comment"># discard arg</span> -<span id="L59" class="LineNr"> 59 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L59" class="LineNr"> 59 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L60" class="LineNr"> 60 </span> <span class="Comment"># write_stderr(s)</span> <span id="L61" class="LineNr"> 61 </span> <span class="Comment"># push args</span> <span id="L62" class="LineNr"> 62 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(ESP+4)</span> <span id="L63" class="LineNr"> 63 </span> <span class="Comment"># call</span> <span id="L64" class="LineNr"> 64 </span> e8/call write_stderr/disp32 <span id="L65" class="LineNr"> 65 </span> <span class="Comment"># discard arg</span> -<span id="L66" class="LineNr"> 66 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L66" class="LineNr"> 66 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L67" class="LineNr"> 67 </span> <span class="Comment"># write_stderr(" expected")</span> <span id="L68" class="LineNr"> 68 </span> <span class="Comment"># push args</span> <span id="L69" class="LineNr"> 69 </span> 68/push " expected"/imm32 <span id="L70" class="LineNr"> 70 </span> <span class="Comment"># call</span> <span id="L71" class="LineNr"> 71 </span> e8/call write_stderr/disp32 <span id="L72" class="LineNr"> 72 </span> <span class="Comment"># discard arg</span> -<span id="L73" class="LineNr"> 73 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L73" class="LineNr"> 73 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L74" class="LineNr"> 74 </span> <span class="Comment"># write_stderr("\n")</span> <span id="L75" class="LineNr"> 75 </span> <span class="Comment"># push args</span> <span id="L76" class="LineNr"> 76 </span> 68/push Newline/imm32 <span id="L77" class="LineNr"> 77 </span> <span class="Comment"># call</span> <span id="L78" class="LineNr"> 78 </span> e8/call write_stderr/disp32 <span id="L79" class="LineNr"> 79 </span> <span class="Comment"># discard arg</span> -<span id="L80" class="LineNr"> 80 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L80" class="LineNr"> 80 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L81" class="LineNr"> 81 </span> <span class="Comment"># end</span> <span id="L82" class="LineNr"> 82 </span> c3/return <span id="L83" class="LineNr"> 83 </span> -<span id="L84" class="LineNr"> 84 </span><span class="SalientComment">## helpers</span> -<span id="L85" class="LineNr"> 85 </span> -<span id="L86" class="LineNr"> 86 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> -<span id="L87" class="LineNr"> 87 </span>check_ints_equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> -<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> -<span id="L89" class="LineNr"> 89 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EAX</span> -<span id="L90" class="LineNr"> 90 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EBX</span> -<span id="L91" class="LineNr"> 91 </span> <span class="Comment"># if EAX == b/EBX</span> -<span id="L92" class="LineNr"> 92 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> -<span id="L93" class="LineNr"> 93 </span> 75/jump-if-unequal $check_ints_equal:else/disp8 -<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># print('.')</span> -<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># push args</span> -<span id="L96" class="LineNr"> 96 </span> 68/push "."/imm32 -<span id="L97" class="LineNr"> 97 </span> <span class="Comment"># call</span> -<span id="L98" class="LineNr"> 98 </span> e8/call write_stderr/disp32 -<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># discard arg</span> -<span id="L100" class="LineNr">100 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L101" class="LineNr">101 </span> <span class="Comment"># return</span> -<span id="L102" class="LineNr">102 </span> c3/return -<span id="L103" class="LineNr">103 </span> <span class="Comment"># else:</span> -<span id="L104" class="LineNr">104 </span>$check_ints_equal:else: -<span id="L105" class="LineNr">105 </span> <span class="Comment"># copy msg into ECX</span> -<span id="L106" class="LineNr">106 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> -<span id="L107" class="LineNr">107 </span> <span class="Comment"># print(ECX)</span> -<span id="L108" class="LineNr">108 </span> <span class="Comment"># push args</span> -<span id="L109" class="LineNr">109 </span> 51/push-ECX -<span id="L110" class="LineNr">110 </span> <span class="Comment"># call</span> -<span id="L111" class="LineNr">111 </span> e8/call write_stderr/disp32 -<span id="L112" class="LineNr">112 </span> <span class="Comment"># discard arg</span> -<span id="L113" class="LineNr">113 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L114" class="LineNr">114 </span> <span class="Comment"># print newline</span> -<span id="L115" class="LineNr">115 </span> <span class="Comment"># push args</span> -<span id="L116" class="LineNr">116 </span> 68/push Newline/imm32 -<span id="L117" class="LineNr">117 </span> <span class="Comment"># call</span> -<span id="L118" class="LineNr">118 </span> e8/call write_stderr/disp32 -<span id="L119" class="LineNr">119 </span> <span class="Comment"># discard arg</span> -<span id="L120" class="LineNr">120 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L121" class="LineNr">121 </span> <span class="Comment"># end</span> -<span id="L122" class="LineNr">122 </span> c3/return -<span id="L123" class="LineNr">123 </span> -<span id="L124" class="LineNr">124 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> -<span id="L125" class="LineNr">125 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> -<span id="L126" class="LineNr">126 </span>argv_equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> -<span id="L127" class="Folded">127 </span><span class="Folded">+-- 58 lines: # --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L185" class="Folded">185 </span><span class="Folded">+--134 lines: # tests for argv_equal -----------------------------------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L319" class="LineNr">319 </span> -<span id="L320" class="LineNr">320 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L321" class="LineNr">321 </span> <span class="Comment"># save registers</span> -<span id="L322" class="LineNr">322 </span> 50/push-EAX -<span id="L323" class="LineNr">323 </span> 51/push-ECX -<span id="L324" class="LineNr">324 </span> 52/push-EDX -<span id="L325" class="LineNr">325 </span> 53/push-EBX -<span id="L326" class="LineNr">326 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> -<span id="L327" class="LineNr">327 </span> <span class="Comment"># fd = 2 (stderr)</span> -<span id="L328" class="LineNr">328 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy 2 to EBX</span> -<span id="L329" class="LineNr">329 </span> <span class="Comment"># x = s+4</span> -<span id="L330" class="LineNr">330 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to ECX</span> -<span id="L331" class="LineNr">331 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ECX</span> -<span id="L332" class="LineNr">332 </span> <span class="Comment"># size = *s</span> -<span id="L333" class="LineNr">333 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to EDX</span> -<span id="L334" class="LineNr">334 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L335" class="LineNr">335 </span> <span class="Comment"># call write()</span> -<span id="L336" class="LineNr">336 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> -<span id="L337" class="LineNr">337 </span> cd/syscall 0x80/imm8 -<span id="L338" class="LineNr">338 </span> <span class="Comment"># restore registers</span> -<span id="L339" class="LineNr">339 </span> 5b/pop-EBX -<span id="L340" class="LineNr">340 </span> 5a/pop-EDX -<span id="L341" class="LineNr">341 </span> 59/pop-ECX -<span id="L342" class="LineNr">342 </span> 58/pop-EAX -<span id="L343" class="LineNr">343 </span> <span class="Comment"># end</span> -<span id="L344" class="LineNr">344 </span> c3/return -<span id="L345" class="LineNr">345 </span> -<span id="L346" class="LineNr">346 </span>write_stdout: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L347" class="LineNr">347 </span> <span class="Comment"># save registers</span> -<span id="L348" class="LineNr">348 </span> 50/push-EAX -<span id="L349" class="LineNr">349 </span> 51/push-ECX -<span id="L350" class="LineNr">350 </span> 52/push-EDX -<span id="L351" class="LineNr">351 </span> 53/push-EBX -<span id="L352" class="LineNr">352 </span> <span class="Comment"># write(1/stdout, (data) s+4, (size) *s)</span> -<span id="L353" class="LineNr">353 </span> <span class="Comment"># fd = 1 (stdout)</span> -<span id="L354" class="LineNr">354 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L355" class="LineNr">355 </span> <span class="Comment"># x = s+4</span> -<span id="L356" class="LineNr">356 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to ECX</span> -<span id="L357" class="LineNr">357 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ECX</span> -<span id="L358" class="LineNr">358 </span> <span class="Comment"># size = *s</span> -<span id="L359" class="LineNr">359 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to EDX</span> -<span id="L360" class="LineNr">360 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L361" class="LineNr">361 </span> <span class="Comment"># call write()</span> -<span id="L362" class="LineNr">362 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> -<span id="L363" class="LineNr">363 </span> cd/syscall 0x80/imm8 -<span id="L364" class="LineNr">364 </span> <span class="Comment"># restore registers</span> -<span id="L365" class="LineNr">365 </span> 5b/pop-EBX -<span id="L366" class="LineNr">366 </span> 5a/pop-EDX -<span id="L367" class="LineNr">367 </span> 59/pop-ECX -<span id="L368" class="LineNr">368 </span> 58/pop-EAX -<span id="L369" class="LineNr">369 </span> <span class="Comment"># end</span> -<span id="L370" class="LineNr">370 </span> c3/return -<span id="L371" class="LineNr">371 </span> -<span id="L372" class="LineNr">372 </span>== data -<span id="L373" class="LineNr">373 </span>Newline: -<span id="L374" class="LineNr">374 </span> <span class="Comment"># size</span> -<span id="L375" class="LineNr">375 </span> 01 00 00 00 -<span id="L376" class="LineNr">376 </span> <span class="Comment"># data</span> -<span id="L377" class="LineNr">377 </span> 0a/newline -<span id="L378" class="LineNr">378 </span> -<span id="L379" class="LineNr">379 </span><span class="Comment"># for argv_equal tests</span> -<span id="L380" class="LineNr">380 </span>Null_argv: -<span id="L381" class="LineNr">381 </span> 00/null -<span id="L382" class="LineNr">382 </span>Abc_argv: -<span id="L383" class="LineNr">383 </span> 41/A 62/b 63/c 00/null -<span id="L384" class="LineNr">384 </span> -<span id="L385" class="LineNr">385 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> +<span id="L84" class="LineNr"> 84 </span>write_stdout: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># prolog</span> +<span id="L86" class="LineNr"> 86 </span> 55/push-EBP +<span id="L87" class="LineNr"> 87 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># save registers</span> +<span id="L89" class="LineNr"> 89 </span> 50/push-EAX +<span id="L90" class="LineNr"> 90 </span> 51/push-ECX +<span id="L91" class="LineNr"> 91 </span> 52/push-EDX +<span id="L92" class="LineNr"> 92 </span> 53/push-EBX +<span id="L93" class="LineNr"> 93 </span> <span class="Comment"># write(1/stdout, (data) s+4, (size) *s)</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L95" class="LineNr"> 95 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EBX</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Comment"># x = s+4</span> +<span id="L97" class="LineNr"> 97 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span> +<span id="L98" class="LineNr"> 98 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ECX</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># size = *s</span> +<span id="L100" class="LineNr">100 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDX</span> +<span id="L101" class="LineNr">101 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L102" class="LineNr">102 </span> <span class="Comment"># call write()</span> +<span id="L103" class="LineNr">103 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy to EAX</span> +<span id="L104" class="LineNr">104 </span> cd/syscall 0x80/imm8 +<span id="L105" class="LineNr">105 </span> <span class="Comment"># restore registers</span> +<span id="L106" class="LineNr">106 </span> 5b/pop-to-EBX +<span id="L107" class="LineNr">107 </span> 5a/pop-to-EDX +<span id="L108" class="LineNr">108 </span> 59/pop-to-ECX +<span id="L109" class="LineNr">109 </span> 58/pop-to-EAX +<span id="L110" class="LineNr">110 </span> <span class="Comment"># end</span> +<span id="L111" class="LineNr">111 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L112" class="LineNr">112 </span> 5d/pop-to-EBP +<span id="L113" class="LineNr">113 </span> c3/return +<span id="L114" class="LineNr">114 </span> +<span id="L115" class="LineNr">115 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> </pre> </body> </html> diff --git a/html/subx/apps/factorial.subx.html b/html/subx/apps/factorial.subx.html index 4e11b12f..cbb66b9e 100644 --- a/html/subx/apps/factorial.subx.html +++ b/html/subx/apps/factorial.subx.html @@ -17,7 +17,6 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } .Delimiter { color: #800080; } -.Folded { color: #a8a8a8; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -57,8 +56,8 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## compute the factorial of 5, and return the result in the exit code</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate apps/factorial.subx apps/factorial</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate apps/factorial.subx -o apps/factorial</span> <span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run apps/factorial</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> @@ -77,21 +76,21 @@ if ('onhashchange' in window) { <span id="L20" class="LineNr"> 20 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> <span id="L21" class="LineNr"> 21 </span> <span id="L22" class="LineNr"> 22 </span><span class="Comment"># main:</span> -<span id="L23" class="LineNr"> 23 </span> <span class="Comment"># if (argc > 1)</span> -<span id="L24" class="LineNr"> 24 </span> 8b/copy 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ESP to EAX</span> -<span id="L25" class="LineNr"> 25 </span> 3d/compare <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># compare EAX with 1</span> -<span id="L26" class="LineNr"> 26 </span> 7e/jump-if-lesser-or-equal $run_main/disp8 -<span id="L27" class="LineNr"> 27 </span> <span class="Comment"># and if (argv[1] == "test")</span> -<span id="L28" class="LineNr"> 28 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EAX</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Comment"># prolog</span> +<span id="L24" class="LineNr"> 24 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Comment"># if (argc > 1)</span> +<span id="L26" class="LineNr"> 26 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/disp8 1/imm32 <span class="Comment"># compare *EBP</span> +<span id="L27" class="LineNr"> 27 </span> 7e/jump-if-lesser-or-equal $run_main/disp8 +<span id="L28" class="LineNr"> 28 </span> <span class="Comment"># and if (argv[1] == "test")</span> <span id="L29" class="LineNr"> 29 </span> <span class="Comment"># push args</span> -<span id="L30" class="LineNr"> 30 </span> 50/push-EAX -<span id="L31" class="LineNr"> 31 </span> 68/push "test"/imm32 +<span id="L30" class="LineNr"> 30 </span> 68/push "test"/imm32 +<span id="L31" class="LineNr"> 31 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> <span id="L32" class="LineNr"> 32 </span> <span class="Comment"># call</span> -<span id="L33" class="LineNr"> 33 </span> e8/call argv_equal/disp32 +<span id="L33" class="LineNr"> 33 </span> e8/call kernel_string_equal/disp32 <span id="L34" class="LineNr"> 34 </span> <span class="Comment"># discard args</span> -<span id="L35" class="LineNr"> 35 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> +<span id="L35" class="LineNr"> 35 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> <span id="L36" class="LineNr"> 36 </span> <span class="Comment"># check result</span> -<span id="L37" class="LineNr"> 37 </span> 3d/compare <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># compare EAX with 1</span> +<span id="L37" class="LineNr"> 37 </span> 3d/compare-EAX 1/imm32 <span id="L38" class="LineNr"> 38 </span> 75/jump-if-not-equal $run_main/disp8 <span id="L39" class="LineNr"> 39 </span> <span class="Comment"># then</span> <span id="L40" class="LineNr"> 40 </span> e8/call run_tests/disp32 @@ -103,40 +102,40 @@ if ('onhashchange' in window) { <span id="L46" class="LineNr"> 46 </span> <span class="Comment"># EAX <- call</span> <span id="L47" class="LineNr"> 47 </span> e8/call factorial/disp32 <span id="L48" class="LineNr"> 48 </span> <span class="Comment"># discard arg</span> -<span id="L49" class="LineNr"> 49 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L49" class="LineNr"> 49 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L50" class="LineNr"> 50 </span>$main_exit: <span id="L51" class="LineNr"> 51 </span> <span class="Comment"># exit(EAX)</span> <span id="L52" class="LineNr"> 52 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L53" class="LineNr"> 53 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> +<span id="L53" class="LineNr"> 53 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> <span id="L54" class="LineNr"> 54 </span> cd/syscall 0x80/imm8 <span id="L55" class="LineNr"> 55 </span> <span id="L56" class="LineNr"> 56 </span><span class="Comment"># factorial(n)</span> <span id="L57" class="LineNr"> 57 </span>factorial: -<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># initialize EAX to 1 (base case)</span> -<span id="L59" class="LineNr"> 59 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L60" class="LineNr"> 60 </span> <span class="Comment"># if (n <= 1) jump exit</span> -<span id="L61" class="LineNr"> 61 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 1/imm32 <span class="Comment"># compare *(ESP+4) with 1</span> -<span id="L62" class="LineNr"> 62 </span> 7e/jump-if-<= $factorial:exit/disp8 -<span id="L63" class="LineNr"> 63 </span> <span class="Comment"># EBX: n-1</span> -<span id="L64" class="LineNr"> 64 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 3/r32/EBX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EBX</span> -<span id="L65" class="LineNr"> 65 </span> 81 5/subop/subtract 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># subtract 1 from EBX</span> -<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># prepare call</span> -<span id="L67" class="LineNr"> 67 </span> 55/push-EBP -<span id="L68" class="LineNr"> 68 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> -<span id="L69" class="LineNr"> 69 </span> <span class="Comment"># EAX: factorial(n-1)</span> -<span id="L70" class="LineNr"> 70 </span> 53/push-EBX -<span id="L71" class="LineNr"> 71 </span> e8/call <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> factorial/disp32 -<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># discard arg</span> -<span id="L73" class="LineNr"> 73 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L74" class="LineNr"> 74 </span> <span class="Comment"># clean up after call</span> -<span id="L75" class="LineNr"> 75 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> -<span id="L76" class="LineNr"> 76 </span> 5d/pop <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># pop to EBP</span> -<span id="L77" class="LineNr"> 77 </span> <span class="Comment"># refresh n</span> -<span id="L78" class="LineNr"> 78 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> -<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># return n * factorial(n-1)</span> -<span id="L80" class="LineNr"> 80 </span> f7 4/subop/multiply 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># multiply *(ESP+4) (n) into EAX (factorial(n-1))</span> -<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># TODO: check for overflow</span> -<span id="L82" class="LineNr"> 82 </span>$factorial:exit: +<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># prolog</span> +<span id="L59" class="LineNr"> 59 </span> 55/push-EBP +<span id="L60" class="LineNr"> 60 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L61" class="LineNr"> 61 </span> 53/push-EBX +<span id="L62" class="LineNr"> 62 </span> <span class="Comment"># initialize EAX to 1 (base case)</span> +<span id="L63" class="LineNr"> 63 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># if (n <= 1) jump exit</span> +<span id="L65" class="LineNr"> 65 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 1/imm32 <span class="Comment"># compare *(EBP+8)</span> +<span id="L66" class="LineNr"> 66 </span> 7e/jump-if-<= $factorial:exit/disp8 +<span id="L67" class="LineNr"> 67 </span> <span class="Comment"># EBX: n-1</span> +<span id="L68" class="LineNr"> 68 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 3/r32/EBX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EBX</span> +<span id="L69" class="LineNr"> 69 </span> 81 5/subop/subtract 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># subtract from EBX</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># EAX: factorial(n-1)</span> +<span id="L71" class="LineNr"> 71 </span> 53/push-EBX +<span id="L72" class="LineNr"> 72 </span> e8/call <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> factorial/disp32 +<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># discard arg</span> +<span id="L74" class="LineNr"> 74 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># return n * factorial(n-1)</span> +<span id="L76" class="LineNr"> 76 </span> f7 4/subop/multiply 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># multiply *(EBP+8) into EAX</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Comment"># TODO: check for overflow</span> +<span id="L78" class="LineNr"> 78 </span>$factorial:exit: +<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># epilog</span> +<span id="L80" class="LineNr"> 80 </span> 5b/pop-to-EBX +<span id="L81" class="LineNr"> 81 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L82" class="LineNr"> 82 </span> 5d/pop-to-EBP <span id="L83" class="LineNr"> 83 </span> c3/return <span id="L84" class="LineNr"> 84 </span> <span id="L85" class="LineNr"> 85 </span>test_factorial: @@ -146,118 +145,20 @@ if ('onhashchange' in window) { <span id="L89" class="LineNr"> 89 </span> <span class="Comment"># call</span> <span id="L90" class="LineNr"> 90 </span> e8/call factorial/disp32 <span id="L91" class="LineNr"> 91 </span> <span class="Comment"># discard arg</span> -<span id="L92" class="LineNr"> 92 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L92" class="LineNr"> 92 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L93" class="LineNr"> 93 </span> <span class="Comment"># check_ints_equal(EAX, 120, failure message)</span> <span id="L94" class="LineNr"> 94 </span> <span class="Comment"># push args</span> -<span id="L95" class="LineNr"> 95 </span> 50/push-EAX +<span id="L95" class="LineNr"> 95 </span> 68/push "F - test_factorial"/imm32 <span id="L96" class="LineNr"> 96 </span> 68/push 0x78/imm32/expected-120 -<span id="L97" class="LineNr"> 97 </span> 68/push "F - test_factorial"/imm32 +<span id="L97" class="LineNr"> 97 </span> 50/push-EAX <span id="L98" class="LineNr"> 98 </span> <span class="Comment"># call</span> <span id="L99" class="LineNr"> 99 </span> e8/call check_ints_equal/disp32 <span id="L100" class="LineNr">100 </span> <span class="Comment"># discard args</span> -<span id="L101" class="LineNr">101 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> +<span id="L101" class="LineNr">101 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> <span id="L102" class="LineNr">102 </span> <span class="Comment"># end</span> <span id="L103" class="LineNr">103 </span> c3/return <span id="L104" class="LineNr">104 </span> -<span id="L105" class="LineNr">105 </span><span class="SalientComment">## helpers</span> -<span id="L106" class="LineNr">106 </span> -<span id="L107" class="LineNr">107 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> -<span id="L108" class="LineNr">108 </span>check_ints_equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> -<span id="L109" class="LineNr">109 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> -<span id="L110" class="LineNr">110 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EAX</span> -<span id="L111" class="LineNr">111 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EBX</span> -<span id="L112" class="LineNr">112 </span> <span class="Comment"># if EAX == b/EBX</span> -<span id="L113" class="LineNr">113 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> -<span id="L114" class="LineNr">114 </span> 75/jump-if-unequal $check_ints_equal:else/disp8 -<span id="L115" class="LineNr">115 </span> <span class="Comment"># print('.')</span> -<span id="L116" class="LineNr">116 </span> <span class="Comment"># push args</span> -<span id="L117" class="LineNr">117 </span> 68/push "."/imm32 -<span id="L118" class="LineNr">118 </span> <span class="Comment"># call</span> -<span id="L119" class="LineNr">119 </span> e8/call write_stderr/disp32 -<span id="L120" class="LineNr">120 </span> <span class="Comment"># discard arg</span> -<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L122" class="LineNr">122 </span> <span class="Comment"># return</span> -<span id="L123" class="LineNr">123 </span> c3/return -<span id="L124" class="LineNr">124 </span> <span class="Comment"># else:</span> -<span id="L125" class="LineNr">125 </span>$check_ints_equal:else: -<span id="L126" class="LineNr">126 </span> <span class="Comment"># copy msg into ECX</span> -<span id="L127" class="LineNr">127 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> -<span id="L128" class="LineNr">128 </span> <span class="Comment"># print(ECX)</span> -<span id="L129" class="LineNr">129 </span> <span class="Comment"># push args</span> -<span id="L130" class="LineNr">130 </span> 51/push-ECX -<span id="L131" class="LineNr">131 </span> <span class="Comment"># call</span> -<span id="L132" class="LineNr">132 </span> e8/call write_stderr/disp32 -<span id="L133" class="LineNr">133 </span> <span class="Comment"># discard arg</span> -<span id="L134" class="LineNr">134 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L135" class="LineNr">135 </span> <span class="Comment"># print newline</span> -<span id="L136" class="LineNr">136 </span> <span class="Comment"># push args</span> -<span id="L137" class="LineNr">137 </span> 68/push Newline/imm32 -<span id="L138" class="LineNr">138 </span> <span class="Comment"># call</span> -<span id="L139" class="LineNr">139 </span> e8/call write_stderr/disp32 -<span id="L140" class="LineNr">140 </span> <span class="Comment"># discard arg</span> -<span id="L141" class="LineNr">141 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L142" class="LineNr">142 </span> <span class="Comment"># end</span> -<span id="L143" class="LineNr">143 </span> c3/return -<span id="L144" class="LineNr">144 </span> -<span id="L145" class="LineNr">145 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> -<span id="L146" class="LineNr">146 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> -<span id="L147" class="LineNr">147 </span>argv_equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> -<span id="L148" class="LineNr">148 </span> <span class="Comment"># pseudocode:</span> -<span id="L149" class="LineNr">149 </span> <span class="Comment"># initialize n = b.length</span> -<span id="L150" class="LineNr">150 </span> <span class="Comment"># initialize s1 = s</span> -<span id="L151" class="LineNr">151 </span> <span class="Comment"># initialize s2 = b.data</span> -<span id="L152" class="LineNr">152 </span> <span class="Comment"># i = 0</span> -<span id="L153" class="LineNr">153 </span> <span class="Comment"># for (i = 0; i < n; ++n)</span> -<span id="L154" class="LineNr">154 </span> <span class="Comment"># c1 = *s1</span> -<span id="L155" class="LineNr">155 </span> <span class="Comment"># c2 = *s2</span> -<span id="L156" class="LineNr">156 </span> <span class="Comment"># if c1 == 0</span> -<span id="L157" class="LineNr">157 </span> <span class="Comment"># return false</span> -<span id="L158" class="LineNr">158 </span> <span class="Comment"># if c1 != c2</span> -<span id="L159" class="LineNr">159 </span> <span class="Comment"># return false</span> -<span id="L160" class="LineNr">160 </span> <span class="Comment"># return *s1 == 0</span> -<span id="L161" class="Folded">161 </span><span class="Folded">+-- 45 lines: # --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L206" class="Folded">206 </span><span class="Folded">+--134 lines: # tests for argv_equal -----------------------------------------------------------------------------------------------------------------------------------------------------------------------</span> -<span id="L340" class="LineNr">340 </span> -<span id="L341" class="LineNr">341 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L342" class="LineNr">342 </span> <span class="Comment"># save registers</span> -<span id="L343" class="LineNr">343 </span> 50/push-EAX -<span id="L344" class="LineNr">344 </span> 51/push-ECX -<span id="L345" class="LineNr">345 </span> 52/push-EDX -<span id="L346" class="LineNr">346 </span> 53/push-EBX -<span id="L347" class="LineNr">347 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> -<span id="L348" class="LineNr">348 </span> <span class="Comment"># fd = 2 (stderr)</span> -<span id="L349" class="LineNr">349 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy 2 to EBX</span> -<span id="L350" class="LineNr">350 </span> <span class="Comment"># x = s+4</span> -<span id="L351" class="LineNr">351 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to ECX</span> -<span id="L352" class="LineNr">352 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ECX</span> -<span id="L353" class="LineNr">353 </span> <span class="Comment"># size = *s</span> -<span id="L354" class="LineNr">354 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to EDX</span> -<span id="L355" class="LineNr">355 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L356" class="LineNr">356 </span> <span class="Comment"># call write()</span> -<span id="L357" class="LineNr">357 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> -<span id="L358" class="LineNr">358 </span> cd/syscall 0x80/imm8 -<span id="L359" class="LineNr">359 </span> <span class="Comment"># restore registers</span> -<span id="L360" class="LineNr">360 </span> 5b/pop-EBX -<span id="L361" class="LineNr">361 </span> 5a/pop-EDX -<span id="L362" class="LineNr">362 </span> 59/pop-ECX -<span id="L363" class="LineNr">363 </span> 58/pop-EAX -<span id="L364" class="LineNr">364 </span> <span class="Comment"># end</span> -<span id="L365" class="LineNr">365 </span> c3/return -<span id="L366" class="LineNr">366 </span> -<span id="L367" class="LineNr">367 </span>== data -<span id="L368" class="LineNr">368 </span>Newline: -<span id="L369" class="LineNr">369 </span> <span class="Comment"># size</span> -<span id="L370" class="LineNr">370 </span> 01 00 00 00 -<span id="L371" class="LineNr">371 </span> <span class="Comment"># data</span> -<span id="L372" class="LineNr">372 </span> 0a/newline -<span id="L373" class="LineNr">373 </span> -<span id="L374" class="LineNr">374 </span><span class="Comment"># for argv_equal tests</span> -<span id="L375" class="LineNr">375 </span>Null_argv: -<span id="L376" class="LineNr">376 </span> 00/null -<span id="L377" class="LineNr">377 </span>Abc_argv: -<span id="L378" class="LineNr">378 </span> 41/A 62/b 63/c 00/null -<span id="L379" class="LineNr">379 </span> -<span id="L380" class="LineNr">380 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> +<span id="L105" class="LineNr">105 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex1.1.subx.html b/html/subx/examples/ex1.1.subx.html deleted file mode 100644 index f706d6fd..00000000 --- a/html/subx/examples/ex1.1.subx.html +++ /dev/null @@ -1,79 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> -<html> -<head> -<meta http-equiv="content-type" content="text/html; charset=UTF-8"> -<title>Mu - subx/examples/ex1.1.subx</title> -<meta name="Generator" content="Vim/8.0"> -<meta name="plugin-version" content="vim7.4_v2"> -<meta name="syntax" content="none"> -<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> -<meta name="colorscheme" content="minimal"> -<style type="text/css"> -<!-- -pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } -body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } -a { color:#eeeeee; text-decoration: none; } -a:hover { text-decoration: underline; } -* { font-size: 12pt; font-size: 1em; } -.LineNr { color: #444444; } -.Comment { color: #9090ff; } -.Comment a { color:#0000ee; text-decoration:underline; } -.SalientComment { color: #00ffff; } ---> -</style> - -<script type='text/javascript'> -<!-- - -/* function to open any folds containing a jumped-to line before jumping to it */ -function JumpToLine() -{ - var lineNum; - lineNum = window.location.hash; - lineNum = lineNum.substr(1); /* strip off '#' */ - - if (lineNum.indexOf('L') == -1) { - lineNum = 'L'+lineNum; - } - lineElem = document.getElementById(lineNum); - /* Always jump to new location even if the line was hidden inside a fold, or - * we corrected the raw number to a line ID. - */ - if (lineElem) { - lineElem.scrollIntoView(true); - } - return true; -} -if ('onhashchange' in window) { - window.onhashchange = JumpToLine; -} - ---> -</script> -</head> -<body onload='JumpToLine();'> -<pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## first program: same as <a href="https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html">https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html</a></span> -<span id="L2" class="LineNr"> 2 </span><span class="Comment"># Just return 42.</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate ex1.1.subx ex1</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ subx run ex1</span> -<span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected result:</span> -<span id="L8" class="LineNr"> 8 </span><span class="Comment"># $ echo $?</span> -<span id="L9" class="LineNr"> 9 </span><span class="Comment"># 42</span> -<span id="L10" class="LineNr">10 </span> -<span id="L11" class="LineNr">11 </span>== code -<span id="L12" class="LineNr">12 </span><span class="Comment"># opcode ModR/M SIB displacement immediate</span> -<span id="L13" class="LineNr">13 </span><span class="Comment"># instruction mod, reg, Reg/Mem bits scale, index, base</span> -<span id="L14" class="LineNr">14 </span><span class="Comment"># 1-3 bytes 0/1 byte 0/1 byte 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L15" class="LineNr">15 </span> bb 2a 00 00 00 <span class="Comment"># copy 0x2a (42) to EBX</span> -<span id="L16" class="LineNr">16 </span> <span class="Comment"># exit(EBX)</span> -<span id="L17" class="LineNr">17 </span> b8 01 00 00 00 <span class="Comment"># copy 1 to EAX</span> -<span id="L18" class="LineNr">18 </span> cd 80 <span class="Comment"># int 80h</span> -<span id="L19" class="LineNr">19 </span> -<span id="L20" class="LineNr">20 </span><span class="Comment"># vim:ft=subx</span> -</pre> -</body> -</html> -<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/examples/ex1.2.subx.html b/html/subx/examples/ex1.subx.html index 0e7ec547..4ed9359e 100644 --- a/html/subx/examples/ex1.2.subx.html +++ b/html/subx/examples/ex1.subx.html @@ -2,7 +2,7 @@ <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> -<title>Mu - subx/examples/ex1.2.subx</title> +<title>Mu - subx/examples/ex1.subx</title> <meta name="Generator" content="Vim/8.0"> <meta name="plugin-version" content="vim7.4_v2"> <meta name="syntax" content="none"> @@ -56,9 +56,9 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## first program: same as <a href="https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html">https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html</a></span> <span id="L2" class="LineNr"> 2 </span><span class="Comment"># Just return 42.</span> <span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate ex1.2.subx ex1</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ subx run ex1</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate examples/ex1.2.subx -o examples/ex1</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ subx run examples/ex1</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected result:</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># $ echo $?</span> <span id="L9" class="LineNr"> 9 </span><span class="Comment"># 42</span> @@ -69,7 +69,7 @@ if ('onhashchange' in window) { <span id="L14" class="LineNr">14 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> <span id="L15" class="LineNr">15 </span> bb/copy 2a/imm32 <span class="Comment"># copy 42 to EBX</span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># exit(EBX)</span> -<span id="L17" class="LineNr">17 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> +<span id="L17" class="LineNr">17 </span> b8/copy 1/imm32 <span class="Comment"># copy to EAX</span> <span id="L18" class="LineNr">18 </span> cd/syscall 0x80/imm8 <span id="L19" class="LineNr">19 </span> <span id="L20" class="LineNr">20 </span><span class="Comment"># vim:ft=subx</span> diff --git a/html/subx/examples/ex10.subx.html b/html/subx/examples/ex10.subx.html index 8e7a698e..074cd0e8 100644 --- a/html/subx/examples/ex10.subx.html +++ b/html/subx/examples/ex10.subx.html @@ -56,9 +56,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## String comparison: return 1 iff the two args passed in at the commandline are equal.</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex10.subx ex10</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex10 abc abd</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex10.subx -o examples/ex10</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex10 abc abd</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># 0 # false</span> @@ -74,56 +74,55 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr">18 </span><span class="Comment"># argv[0]: *(ESP+4)</span> <span id="L19" class="LineNr">19 </span><span class="Comment"># argv[1]: *(ESP+8)</span> <span id="L20" class="LineNr">20 </span><span class="Comment"># ...</span> -<span id="L21" class="LineNr">21 </span> <span class="Comment"># s1 = argv[1] (EAX)</span> -<span id="L22" class="LineNr">22 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EAX</span> -<span id="L23" class="LineNr">23 </span> <span class="Comment"># s2 = argv[2] (EBX)</span> -<span id="L24" class="LineNr">24 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EBX</span> -<span id="L25" class="LineNr">25 </span> <span class="Comment"># call argv_equal(s1, s2)</span> -<span id="L26" class="LineNr">26 </span> <span class="Comment"># push args</span> -<span id="L27" class="LineNr">27 </span> 50/push-EAX -<span id="L28" class="LineNr">28 </span> 53/push-EBX -<span id="L29" class="LineNr">29 </span> <span class="Comment"># call</span> -<span id="L30" class="LineNr">30 </span> e8/call argv_equal/disp32 -<span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EAX)</span> -<span id="L32" class="LineNr">32 </span>$exit: -<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L34" class="LineNr">34 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L35" class="LineNr">35 </span> cd/syscall 0x80/imm8 -<span id="L36" class="LineNr">36 </span> -<span id="L37" class="LineNr">37 </span><span class="Comment"># compare two null-terminated ascii strings</span> -<span id="L38" class="LineNr">38 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> -<span id="L39" class="LineNr">39 </span>argv_equal: <span class="Comment"># (s1, s2) : null-terminated ascii strings -> EAX : boolean</span> -<span id="L40" class="LineNr">40 </span> <span class="Comment"># initialize s1 (ECX) and s2 (EDX)</span> -<span id="L41" class="LineNr">41 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to ECX</span> -<span id="L42" class="LineNr">42 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> -<span id="L43" class="LineNr">43 </span> <span class="Comment"># while (true)</span> -<span id="L44" class="LineNr">44 </span>$argv_loop: -<span id="L45" class="LineNr">45 </span> <span class="Comment"># c1/EAX, c2/EBX = *s1, *s2</span> -<span id="L46" class="LineNr">46 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> -<span id="L47" class="LineNr">47 </span> 8a/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ECX to lower byte of EAX</span> -<span id="L48" class="LineNr">48 </span> bb/copy 0/imm32 <span class="Comment"># clear EBX</span> -<span id="L49" class="LineNr">49 </span> 8a/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of EBX</span> -<span id="L50" class="LineNr">50 </span> <span class="Comment"># if (c1 == 0) break</span> -<span id="L51" class="LineNr">51 </span> 3d/compare <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EAX with 0</span> -<span id="L52" class="LineNr">52 </span> 74/jump-if-equal $argv_break/disp8 -<span id="L53" class="LineNr">53 </span> <span class="Comment"># if (c1 != c2) return false</span> -<span id="L54" class="LineNr">54 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> -<span id="L55" class="LineNr">55 </span> 75/jump-if-not-equal $argv_fail/disp8 -<span id="L56" class="LineNr">56 </span> <span class="Comment"># ++s1, ++s2</span> -<span id="L57" class="LineNr">57 </span> 41/inc-ECX -<span id="L58" class="LineNr">58 </span> 42/inc-EDX -<span id="L59" class="LineNr">59 </span> <span class="Comment"># end while</span> -<span id="L60" class="LineNr">60 </span> eb/jump $argv_loop/disp8 -<span id="L61" class="LineNr">61 </span>$argv_break: -<span id="L62" class="LineNr">62 </span> <span class="Comment"># if (c2 == 0) return true</span> -<span id="L63" class="LineNr">63 </span> 81 7/subop/compare 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EBX with 0</span> -<span id="L64" class="LineNr">64 </span> 75/jump-if-not-equal $argv_fail/disp8 -<span id="L65" class="LineNr">65 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L66" class="LineNr">66 </span> c3/return -<span id="L67" class="LineNr">67 </span> <span class="Comment"># return false</span> -<span id="L68" class="LineNr">68 </span>$argv_fail: -<span id="L69" class="LineNr">69 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy 0 to EAX</span> -<span id="L70" class="LineNr">70 </span> c3/return +<span id="L21" class="LineNr">21 </span> <span class="Comment"># prolog</span> +<span id="L22" class="LineNr">22 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L23" class="LineNr">23 </span> <span class="Comment"># call argv_equal(argv[1], argv[2])</span> +<span id="L24" class="LineNr">24 </span> <span class="Comment"># push argv[2]</span> +<span id="L25" class="LineNr">25 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># push argv[1]</span> +<span id="L27" class="LineNr">27 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> +<span id="L28" class="LineNr">28 </span> <span class="Comment"># call</span> +<span id="L29" class="LineNr">29 </span> e8/call argv_equal/disp32 +<span id="L30" class="LineNr">30 </span> <span class="Comment"># exit(EAX)</span> +<span id="L31" class="LineNr">31 </span>$exit: +<span id="L32" class="LineNr">32 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L33" class="LineNr">33 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L34" class="LineNr">34 </span> cd/syscall 0x80/imm8 +<span id="L35" class="LineNr">35 </span> +<span id="L36" class="LineNr">36 </span><span class="Comment"># compare two null-terminated ascii strings</span> +<span id="L37" class="LineNr">37 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> +<span id="L38" class="LineNr">38 </span>argv_equal: <span class="Comment"># (s1, s2) : null-terminated ascii strings -> EAX : boolean</span> +<span id="L39" class="LineNr">39 </span> <span class="Comment"># initialize s1 (ECX) and s2 (EDX)</span> +<span id="L40" class="LineNr">40 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> +<span id="L41" class="LineNr">41 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EDX</span> +<span id="L42" class="LineNr">42 </span> <span class="Comment"># while (true)</span> +<span id="L43" class="LineNr">43 </span>$argv_loop: +<span id="L44" class="LineNr">44 </span> <span class="Comment"># c1/EAX, c2/EBX = *s1, *s2</span> +<span id="L45" class="LineNr">45 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> +<span id="L46" class="LineNr">46 </span> 8a/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ECX to lower byte of EAX</span> +<span id="L47" class="LineNr">47 </span> bb/copy 0/imm32 <span class="Comment"># clear EBX</span> +<span id="L48" class="LineNr">48 </span> 8a/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of EBX</span> +<span id="L49" class="LineNr">49 </span> <span class="Comment"># if (c1 == 0) break</span> +<span id="L50" class="LineNr">50 </span> 3d/compare-EAX 0/imm32 +<span id="L51" class="LineNr">51 </span> 74/jump-if-equal $argv_break/disp8 +<span id="L52" class="LineNr">52 </span> <span class="Comment"># if (c1 != c2) return false</span> +<span id="L53" class="LineNr">53 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> +<span id="L54" class="LineNr">54 </span> 75/jump-if-not-equal $argv_fail/disp8 +<span id="L55" class="LineNr">55 </span> <span class="Comment"># ++s1, ++s2</span> +<span id="L56" class="LineNr">56 </span> 41/inc-ECX +<span id="L57" class="LineNr">57 </span> 42/inc-EDX +<span id="L58" class="LineNr">58 </span> <span class="Comment"># end while</span> +<span id="L59" class="LineNr">59 </span> eb/jump $argv_loop/disp8 +<span id="L60" class="LineNr">60 </span>$argv_break: +<span id="L61" class="LineNr">61 </span> <span class="Comment"># if (c2 == 0) return true</span> +<span id="L62" class="LineNr">62 </span> 81 7/subop/compare 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EBX</span> +<span id="L63" class="LineNr">63 </span> 75/jump-if-not-equal $argv_fail/disp8 +<span id="L64" class="LineNr">64 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L65" class="LineNr">65 </span> c3/return +<span id="L66" class="LineNr">66 </span> <span class="Comment"># return false</span> +<span id="L67" class="LineNr">67 </span>$argv_fail: +<span id="L68" class="LineNr">68 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EAX</span> +<span id="L69" class="LineNr">69 </span> c3/return </pre> </body> </html> diff --git a/html/subx/examples/ex11.subx.html b/html/subx/examples/ex11.subx.html index f0fd07c2..3273b21a 100644 --- a/html/subx/examples/ex11.subx.html +++ b/html/subx/examples/ex11.subx.html @@ -57,13 +57,13 @@ if ('onhashchange' in window) { <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## Null-terminated vs length-prefixed ascii strings.</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> <span id="L3" class="LineNr"> 3 </span><span class="Comment"># By default we create strings with a 4-byte length prefix rather than a null suffix.</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># However, commandline arguments come null-prefixed from the Linux kernel.</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># This example shows a helper that can compare a commandline argument with the</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># (length-prefixed) literal string "target".</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># However we still need null-prefixed strings when interacting with the Linux</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># kernel in a few places. This layer implements a function for comparing</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># a null-terminated 'kernel string' with a length-prefixed 'SubX string'.</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment">#</span> -<span id="L8" class="LineNr"> 8 </span><span class="Comment"># To run:</span> -<span id="L9" class="LineNr"> 9 </span><span class="Comment"># $ subx translate ex11.subx ex11</span> -<span id="L10" class="LineNr"> 10 </span><span class="Comment"># $ subx run ex11 # runs a series of tests</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># $ subx translate examples/ex11.subx -o examples/ex11</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># $ subx run examples/ex11 # runs a series of tests</span> <span id="L11" class="LineNr"> 11 </span><span class="Comment"># ...... # all tests pass</span> <span id="L12" class="LineNr"> 12 </span><span class="Comment">#</span> <span id="L13" class="LineNr"> 13 </span><span class="Comment"># (We can't yet run the tests when given a "test" commandline argument,</span> @@ -71,293 +71,338 @@ if ('onhashchange' in window) { <span id="L15" class="LineNr"> 15 </span><span class="Comment"># would cause tests to not run, rather than to fail as we'd like.)</span> <span id="L16" class="LineNr"> 16 </span> <span id="L17" class="LineNr"> 17 </span>== code -<span id="L18" class="LineNr"> 18 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L19" class="LineNr"> 19 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L20" class="LineNr"> 20 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L21" class="LineNr"> 21 </span> -<span id="L22" class="LineNr"> 22 </span><span class="Comment"># main:</span> -<span id="L23" class="LineNr"> 23 </span> e8/call run_tests/disp32 <span class="Comment"># 'run_tests' is a function created automatically by SubX. It calls all functions that start with 'test_'.</span> -<span id="L24" class="LineNr"> 24 </span> <span class="Comment"># exit(EAX)</span> -<span id="L25" class="LineNr"> 25 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L26" class="LineNr"> 26 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L27" class="LineNr"> 27 </span> cd/syscall 0x80/imm8 -<span id="L28" class="LineNr"> 28 </span> -<span id="L29" class="LineNr"> 29 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> -<span id="L30" class="LineNr"> 30 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> -<span id="L31" class="LineNr"> 31 </span>argv_equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> -<span id="L32" class="LineNr"> 32 </span> <span class="Comment"># pseudocode:</span> -<span id="L33" class="LineNr"> 33 </span> <span class="Comment"># initialize n = b.length</span> -<span id="L34" class="LineNr"> 34 </span> <span class="Comment"># initialize s1 = s</span> -<span id="L35" class="LineNr"> 35 </span> <span class="Comment"># initialize s2 = b.data</span> -<span id="L36" class="LineNr"> 36 </span> <span class="Comment"># i = 0</span> -<span id="L37" class="LineNr"> 37 </span> <span class="Comment"># for (i = 0; i < n; ++n)</span> -<span id="L38" class="LineNr"> 38 </span> <span class="Comment"># c1 = *s1</span> -<span id="L39" class="LineNr"> 39 </span> <span class="Comment"># c2 = *s2</span> -<span id="L40" class="LineNr"> 40 </span> <span class="Comment"># if c1 == 0</span> -<span id="L41" class="LineNr"> 41 </span> <span class="Comment"># return false</span> -<span id="L42" class="LineNr"> 42 </span> <span class="Comment"># if c1 != c2</span> -<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># return false</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># return *s1 == 0</span> -<span id="L45" class="LineNr"> 45 </span> -<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># initialize s into EDI</span> -<span id="L47" class="LineNr"> 47 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 7/r32/EDI 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EDI</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Comment"># initialize benchmark length n into EDX</span> -<span id="L49" class="LineNr"> 49 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> -<span id="L50" class="LineNr"> 50 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L51" class="LineNr"> 51 </span> <span class="Comment"># initialize benchmark data into ESI</span> -<span id="L52" class="LineNr"> 52 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 6/r32/ESI 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ESI</span> -<span id="L53" class="LineNr"> 53 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESI</span> -<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># initialize loop counter i into ECX</span> -<span id="L55" class="LineNr"> 55 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32/exit <span class="Comment"># copy 1 to ECX</span> -<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># while (i/ECX < n/EDX)</span> -<span id="L57" class="LineNr"> 57 </span>$argv_loop: -<span id="L58" class="LineNr"> 58 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare ECX with EDX</span> -<span id="L59" class="LineNr"> 59 </span> 74/jump-if-equal $argv_break/disp8 -<span id="L60" class="LineNr"> 60 </span> <span class="Comment"># c1/EAX, c2/EBX = *s, *benchmark</span> -<span id="L61" class="LineNr"> 61 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> -<span id="L62" class="LineNr"> 62 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> -<span id="L63" class="LineNr"> 63 </span> bb/copy 0/imm32 <span class="Comment"># clear EBX</span> -<span id="L64" class="LineNr"> 64 </span> 8a/copy 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ESI to lower byte of EBX</span> -<span id="L65" class="LineNr"> 65 </span> <span class="Comment"># if (c1 == 0) return false</span> -<span id="L66" class="LineNr"> 66 </span> 3d/compare <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EAX with 0</span> -<span id="L67" class="LineNr"> 67 </span> 74/jump-if-equal $argv_fail/disp8 -<span id="L68" class="LineNr"> 68 </span> <span class="Comment"># if (c1 != c2) return false</span> -<span id="L69" class="LineNr"> 69 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> -<span id="L70" class="LineNr"> 70 </span> 75/jump-if-not-equal $argv_fail/disp8 -<span id="L71" class="LineNr"> 71 </span> <span class="Comment"># ++s1, ++s2, ++i</span> -<span id="L72" class="LineNr"> 72 </span> 41/inc-ECX -<span id="L73" class="LineNr"> 73 </span> 46/inc-ESI -<span id="L74" class="LineNr"> 74 </span> 47/inc-EDI -<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># end while</span> -<span id="L76" class="LineNr"> 76 </span> eb/jump $argv_loop/disp8 -<span id="L77" class="LineNr"> 77 </span>$argv_break: -<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># if (*s/EDI == 0) return true</span> -<span id="L79" class="LineNr"> 79 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> -<span id="L80" class="LineNr"> 80 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> -<span id="L81" class="LineNr"> 81 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EAX with 0</span> -<span id="L82" class="LineNr"> 82 </span> 75/jump-if-not-equal $argv_fail/disp8 -<span id="L83" class="LineNr"> 83 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L84" class="LineNr"> 84 </span> c3/return -<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># return false</span> -<span id="L86" class="LineNr"> 86 </span>$argv_fail: -<span id="L87" class="LineNr"> 87 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy 0 to EAX</span> -<span id="L88" class="LineNr"> 88 </span> c3/return -<span id="L89" class="LineNr"> 89 </span> -<span id="L90" class="LineNr"> 90 </span><span class="SalientComment">## tests</span> -<span id="L91" class="LineNr"> 91 </span> -<span id="L92" class="LineNr"> 92 </span>test_compare_null_argv_with_empty_array: -<span id="L93" class="LineNr"> 93 </span> <span class="Comment"># EAX = argv_equal(Null_argv, "")</span> -<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># push args</span> -<span id="L95" class="LineNr"> 95 </span> 68/push Null_argv/imm32 -<span id="L96" class="LineNr"> 96 </span> 68/push ""/imm32 -<span id="L97" class="LineNr"> 97 </span> <span class="Comment"># call</span> -<span id="L98" class="LineNr"> 98 </span> e8/call argv_equal/disp32 -<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># discard args</span> -<span id="L100" class="LineNr">100 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L101" class="LineNr">101 </span> <span class="Comment"># call check_ints_equal(EAX, 1)</span> -<span id="L102" class="LineNr">102 </span> 50/push-EAX -<span id="L103" class="LineNr">103 </span> 68/push 1/imm32/true -<span id="L104" class="LineNr">104 </span> 68/push "F - test_compare_null_argv_with_empty_array"/imm32 -<span id="L105" class="LineNr">105 </span> <span class="Comment"># call</span> -<span id="L106" class="LineNr">106 </span> e8/call check_ints_equal/disp32 -<span id="L107" class="LineNr">107 </span> <span class="Comment"># discard args</span> -<span id="L108" class="LineNr">108 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> +<span id="L18" class="LineNr"> 18 </span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L21" class="LineNr"> 21 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L22" class="LineNr"> 22 </span> +<span id="L23" class="LineNr"> 23 </span><span class="Comment"># main:</span> +<span id="L24" class="LineNr"> 24 </span> e8/call run_tests/disp32 <span class="Comment"># 'run_tests' is a function created automatically by SubX. It calls all functions that start with 'test_'.</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Comment"># exit(EAX)</span> +<span id="L26" class="LineNr"> 26 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L27" class="LineNr"> 27 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L28" class="LineNr"> 28 </span> cd/syscall 0x80/imm8 +<span id="L29" class="LineNr"> 29 </span> +<span id="L30" class="LineNr"> 30 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> +<span id="L31" class="LineNr"> 31 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> +<span id="L32" class="LineNr"> 32 </span>kernel_string_equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Comment"># prolog</span> +<span id="L34" class="LineNr"> 34 </span> 55/push-EBP +<span id="L35" class="LineNr"> 35 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Comment"># save registers</span> +<span id="L37" class="LineNr"> 37 </span> 51/push-ECX +<span id="L38" class="LineNr"> 38 </span> 52/push-EDX +<span id="L39" class="LineNr"> 39 </span> 53/push-EBX +<span id="L40" class="LineNr"> 40 </span> 56/push-ESI +<span id="L41" class="LineNr"> 41 </span> 57/push-EDI +<span id="L42" class="LineNr"> 42 </span> +<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># pseudocode:</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># initialize n = b.length</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># initialize s1 = s</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># initialize s2 = b.data</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Comment"># i = 0</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Comment"># for (i = 0; i < n; ++n)</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># c1 = *s1</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Comment"># c2 = *s2</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Comment"># if c1 == 0</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># return false</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Comment"># if c1 != c2</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># return false</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Comment"># return *s1 == 0</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># initialize s into EDI</span> +<span id="L57" class="LineNr"> 57 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 7/r32/EDI 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDI</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># initialize benchmark length n into EDX</span> +<span id="L59" class="LineNr"> 59 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EDX</span> +<span id="L60" class="LineNr"> 60 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Comment"># initialize benchmark data into ESI</span> +<span id="L62" class="LineNr"> 62 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 6/r32/ESI 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to ESI</span> +<span id="L63" class="LineNr"> 63 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESI</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># initialize loop counter i into ECX</span> +<span id="L65" class="LineNr"> 65 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32/exit <span class="Comment"># copy to ECX</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># while (i/ECX < n/EDX)</span> +<span id="L67" class="LineNr"> 67 </span>$kernel_string_loop: +<span id="L68" class="LineNr"> 68 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare ECX with EDX</span> +<span id="L69" class="LineNr"> 69 </span> 74/jump-if-equal $kernel_string_break/disp8 +<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># c1/EAX, c2/EBX = *s, *benchmark</span> +<span id="L71" class="LineNr"> 71 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> +<span id="L72" class="LineNr"> 72 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> +<span id="L73" class="LineNr"> 73 </span> bb/copy 0/imm32 <span class="Comment"># clear EBX</span> +<span id="L74" class="LineNr"> 74 </span> 8a/copy 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ESI to lower byte of EBX</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># if (c1 == 0) return false</span> +<span id="L76" class="LineNr"> 76 </span> 3d/compare-EAX 0/imm32 +<span id="L77" class="LineNr"> 77 </span> 74/jump-if-equal $kernel_string_fail/disp8 +<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># if (c1 != c2) return false</span> +<span id="L79" class="LineNr"> 79 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> +<span id="L80" class="LineNr"> 80 </span> 75/jump-if-not-equal $kernel_string_fail/disp8 +<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># ++s1, ++s2, ++i</span> +<span id="L82" class="LineNr"> 82 </span> 41/inc-ECX +<span id="L83" class="LineNr"> 83 </span> 46/inc-ESI +<span id="L84" class="LineNr"> 84 </span> 47/inc-EDI +<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># end while</span> +<span id="L86" class="LineNr"> 86 </span> eb/jump $kernel_string_loop/disp8 +<span id="L87" class="LineNr"> 87 </span>$kernel_string_break: +<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># if (*s/EDI == 0) return true</span> +<span id="L89" class="LineNr"> 89 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> +<span id="L90" class="LineNr"> 90 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> +<span id="L91" class="LineNr"> 91 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EAX</span> +<span id="L92" class="LineNr"> 92 </span> 75/jump-if-not-equal $kernel_string_fail/disp8 +<span id="L93" class="LineNr"> 93 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> +<span id="L94" class="LineNr"> 94 </span> eb/jump $kernel_string_end/disp8 +<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># return false</span> +<span id="L96" class="LineNr"> 96 </span>$kernel_string_fail: +<span id="L97" class="LineNr"> 97 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EAX</span> +<span id="L98" class="LineNr"> 98 </span> +<span id="L99" class="LineNr"> 99 </span>$kernel_string_end: +<span id="L100" class="LineNr">100 </span> <span class="Comment"># restore registers</span> +<span id="L101" class="LineNr">101 </span> 5f/pop-to-EDI +<span id="L102" class="LineNr">102 </span> 5e/pop-to-ESI +<span id="L103" class="LineNr">103 </span> 5b/pop-to-EBX +<span id="L104" class="LineNr">104 </span> 5a/pop-to-EDX +<span id="L105" class="LineNr">105 </span> 59/pop-to-ECX +<span id="L106" class="LineNr">106 </span> <span class="Comment"># end</span> +<span id="L107" class="LineNr">107 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L108" class="LineNr">108 </span> 5d/pop-to-EBP <span id="L109" class="LineNr">109 </span> c3/return <span id="L110" class="LineNr">110 </span> -<span id="L111" class="LineNr">111 </span>test_compare_null_argv_with_non_empty_array: -<span id="L112" class="LineNr">112 </span> <span class="Comment"># EAX = argv_equal(Null_argv, "Abc")</span> -<span id="L113" class="LineNr">113 </span> <span class="Comment"># push args</span> -<span id="L114" class="LineNr">114 </span> 68/push Null_argv/imm32 -<span id="L115" class="LineNr">115 </span> 68/push "Abc"/imm32 -<span id="L116" class="LineNr">116 </span> <span class="Comment"># call</span> -<span id="L117" class="LineNr">117 </span> e8/call argv_equal/disp32 -<span id="L118" class="LineNr">118 </span> <span class="Comment"># discard args</span> -<span id="L119" class="LineNr">119 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L120" class="LineNr">120 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> -<span id="L121" class="LineNr">121 </span> 50/push-EAX -<span id="L122" class="LineNr">122 </span> 68/push 0/imm32/false -<span id="L123" class="LineNr">123 </span> 68/push "F - test_compare_null_argv_with_non_empty_array"/imm32 -<span id="L124" class="LineNr">124 </span> <span class="Comment"># call</span> -<span id="L125" class="LineNr">125 </span> e8/call check_ints_equal/disp32 -<span id="L126" class="LineNr">126 </span> <span class="Comment"># discard args</span> -<span id="L127" class="LineNr">127 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> -<span id="L128" class="LineNr">128 </span> c3/return -<span id="L129" class="LineNr">129 </span> -<span id="L130" class="LineNr">130 </span>test_compare_argv_with_equal_array: -<span id="L131" class="LineNr">131 </span> <span class="Comment"># EAX = argv_equal(Abc_argv, "Abc")</span> -<span id="L132" class="LineNr">132 </span> <span class="Comment"># push args</span> -<span id="L133" class="LineNr">133 </span> 68/push Abc_argv/imm32 -<span id="L134" class="LineNr">134 </span> 68/push "Abc"/imm32 -<span id="L135" class="LineNr">135 </span> <span class="Comment"># call</span> -<span id="L136" class="LineNr">136 </span> e8/call argv_equal/disp32 -<span id="L137" class="LineNr">137 </span> <span class="Comment"># discard args</span> -<span id="L138" class="LineNr">138 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L139" class="LineNr">139 </span> <span class="Comment"># call check_ints_equal(EAX, 1)</span> -<span id="L140" class="LineNr">140 </span> 50/push-EAX -<span id="L141" class="LineNr">141 </span> 68/push 1/imm32/true -<span id="L142" class="LineNr">142 </span> 68/push "F - test_compare_argv_with_equal_array"/imm32 -<span id="L143" class="LineNr">143 </span> <span class="Comment"># call</span> -<span id="L144" class="LineNr">144 </span> e8/call check_ints_equal/disp32 -<span id="L145" class="LineNr">145 </span> <span class="Comment"># discard args</span> -<span id="L146" class="LineNr">146 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> -<span id="L147" class="LineNr">147 </span> c3/return -<span id="L148" class="LineNr">148 </span> -<span id="L149" class="LineNr">149 </span>test_compare_argv_with_inequal_array: -<span id="L150" class="LineNr">150 </span> <span class="Comment"># EAX = argv_equal(Abc_argv, "Adc")</span> -<span id="L151" class="LineNr">151 </span> <span class="Comment"># push args</span> -<span id="L152" class="LineNr">152 </span> 68/push Abc_argv/imm32 -<span id="L153" class="LineNr">153 </span> 68/push "Adc"/imm32 -<span id="L154" class="LineNr">154 </span> <span class="Comment"># call</span> -<span id="L155" class="LineNr">155 </span> e8/call argv_equal/disp32 -<span id="L156" class="LineNr">156 </span> <span class="Comment"># discard args</span> -<span id="L157" class="LineNr">157 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L158" class="LineNr">158 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> -<span id="L159" class="LineNr">159 </span> 50/push-EAX -<span id="L160" class="LineNr">160 </span> 68/push 0/imm32/false -<span id="L161" class="LineNr">161 </span> 68/push "F - test_compare_argv_with_equal_array"/imm32 -<span id="L162" class="LineNr">162 </span> <span class="Comment"># call</span> -<span id="L163" class="LineNr">163 </span> e8/call check_ints_equal/disp32 -<span id="L164" class="LineNr">164 </span> <span class="Comment"># discard args</span> -<span id="L165" class="LineNr">165 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> -<span id="L166" class="LineNr">166 </span> c3/return -<span id="L167" class="LineNr">167 </span> -<span id="L168" class="LineNr">168 </span>test_compare_argv_with_empty_array: -<span id="L169" class="LineNr">169 </span> <span class="Comment"># EAX = argv_equal(Abc_argv, "")</span> -<span id="L170" class="LineNr">170 </span> <span class="Comment"># push args</span> -<span id="L171" class="LineNr">171 </span> 68/push Abc_argv/imm32 -<span id="L172" class="LineNr">172 </span> 68/push ""/imm32 -<span id="L173" class="LineNr">173 </span> <span class="Comment"># call</span> -<span id="L174" class="LineNr">174 </span> e8/call argv_equal/disp32 -<span id="L175" class="LineNr">175 </span> <span class="Comment"># discard args</span> -<span id="L176" class="LineNr">176 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L177" class="LineNr">177 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> -<span id="L178" class="LineNr">178 </span> 50/push-EAX -<span id="L179" class="LineNr">179 </span> 68/push 0/imm32/false -<span id="L180" class="LineNr">180 </span> 68/push "F - test_compare_argv_with_equal_array"/imm32 -<span id="L181" class="LineNr">181 </span> <span class="Comment"># call</span> -<span id="L182" class="LineNr">182 </span> e8/call check_ints_equal/disp32 -<span id="L183" class="LineNr">183 </span> <span class="Comment"># discard args</span> -<span id="L184" class="LineNr">184 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> -<span id="L185" class="LineNr">185 </span> c3/return -<span id="L186" class="LineNr">186 </span> -<span id="L187" class="LineNr">187 </span>test_compare_argv_with_shorter_array: -<span id="L188" class="LineNr">188 </span> <span class="Comment"># EAX = argv_equal(Abc_argv, "Ab")</span> -<span id="L189" class="LineNr">189 </span> <span class="Comment"># push args</span> -<span id="L190" class="LineNr">190 </span> 68/push Abc_argv/imm32 -<span id="L191" class="LineNr">191 </span> 68/push "Ab"/imm32 -<span id="L192" class="LineNr">192 </span> <span class="Comment"># call</span> -<span id="L193" class="LineNr">193 </span> e8/call argv_equal/disp32 -<span id="L194" class="LineNr">194 </span> <span class="Comment"># discard args</span> -<span id="L195" class="LineNr">195 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L196" class="LineNr">196 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> -<span id="L197" class="LineNr">197 </span> 50/push-EAX -<span id="L198" class="LineNr">198 </span> 68/push 0/imm32/false -<span id="L199" class="LineNr">199 </span> 68/push "F - test_compare_argv_with_shorter_array"/imm32 -<span id="L200" class="LineNr">200 </span> <span class="Comment"># call</span> -<span id="L201" class="LineNr">201 </span> e8/call check_ints_equal/disp32 -<span id="L202" class="LineNr">202 </span> <span class="Comment"># discard args</span> -<span id="L203" class="LineNr">203 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> -<span id="L204" class="LineNr">204 </span> c3/return -<span id="L205" class="LineNr">205 </span> -<span id="L206" class="LineNr">206 </span>test_compare_argv_with_longer_array: -<span id="L207" class="LineNr">207 </span> <span class="Comment"># EAX = argv_equal(Abc_argv, "Abcd")</span> -<span id="L208" class="LineNr">208 </span> <span class="Comment"># push args</span> -<span id="L209" class="LineNr">209 </span> 68/push Abc_argv/imm32 -<span id="L210" class="LineNr">210 </span> 68/push "Abcd"/imm32 -<span id="L211" class="LineNr">211 </span> <span class="Comment"># call</span> -<span id="L212" class="LineNr">212 </span> e8/call argv_equal/disp32 -<span id="L213" class="LineNr">213 </span> <span class="Comment"># discard args</span> -<span id="L214" class="LineNr">214 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L215" class="LineNr">215 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> -<span id="L216" class="LineNr">216 </span> 50/push-EAX -<span id="L217" class="LineNr">217 </span> 68/push 0/imm32/false -<span id="L218" class="LineNr">218 </span> 68/push "F - test_compare_argv_with_longer_array"/imm32 -<span id="L219" class="LineNr">219 </span> <span class="Comment"># call</span> -<span id="L220" class="LineNr">220 </span> e8/call check_ints_equal/disp32 -<span id="L221" class="LineNr">221 </span> <span class="Comment"># discard args</span> -<span id="L222" class="LineNr">222 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add 12 to ESP</span> -<span id="L223" class="LineNr">223 </span> c3/return -<span id="L224" class="LineNr">224 </span> -<span id="L225" class="LineNr">225 </span><span class="SalientComment">## helpers</span> -<span id="L226" class="LineNr">226 </span> -<span id="L227" class="LineNr">227 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> -<span id="L228" class="LineNr">228 </span>check_ints_equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> -<span id="L229" class="LineNr">229 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> -<span id="L230" class="LineNr">230 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EAX</span> -<span id="L231" class="LineNr">231 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EBX</span> -<span id="L232" class="LineNr">232 </span> <span class="Comment"># if EAX == b/EBX</span> -<span id="L233" class="LineNr">233 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> -<span id="L234" class="LineNr">234 </span> 75/jump-if-unequal $check_ints_equal:else/disp8 -<span id="L235" class="LineNr">235 </span> <span class="Comment"># print('.')</span> -<span id="L236" class="LineNr">236 </span> <span class="Comment"># push args</span> -<span id="L237" class="LineNr">237 </span> 68/push "."/imm32 -<span id="L238" class="LineNr">238 </span> <span class="Comment"># call</span> -<span id="L239" class="LineNr">239 </span> e8/call write_stderr/disp32 -<span id="L240" class="LineNr">240 </span> <span class="Comment"># discard arg</span> -<span id="L241" class="LineNr">241 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L242" class="LineNr">242 </span> <span class="Comment"># return</span> -<span id="L243" class="LineNr">243 </span> c3/return -<span id="L244" class="LineNr">244 </span> <span class="Comment"># else:</span> -<span id="L245" class="LineNr">245 </span>$check_ints_equal:else: -<span id="L246" class="LineNr">246 </span> <span class="Comment"># copy msg into ECX</span> -<span id="L247" class="LineNr">247 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to ECX</span> -<span id="L248" class="LineNr">248 </span> <span class="Comment"># print(ECX)</span> -<span id="L249" class="LineNr">249 </span> <span class="Comment"># push args</span> -<span id="L250" class="LineNr">250 </span> 51/push-ECX -<span id="L251" class="LineNr">251 </span> <span class="Comment"># call</span> -<span id="L252" class="LineNr">252 </span> e8/call write_stderr/disp32 -<span id="L253" class="LineNr">253 </span> <span class="Comment"># discard arg</span> -<span id="L254" class="LineNr">254 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L255" class="LineNr">255 </span> <span class="Comment"># print newline</span> -<span id="L256" class="LineNr">256 </span> <span class="Comment"># push args</span> -<span id="L257" class="LineNr">257 </span> 68/push Newline/imm32 -<span id="L258" class="LineNr">258 </span> <span class="Comment"># call</span> -<span id="L259" class="LineNr">259 </span> e8/call write_stderr/disp32 -<span id="L260" class="LineNr">260 </span> <span class="Comment"># discard arg</span> -<span id="L261" class="LineNr">261 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> -<span id="L262" class="LineNr">262 </span> <span class="Comment"># end</span> -<span id="L263" class="LineNr">263 </span> c3/return -<span id="L264" class="LineNr">264 </span> -<span id="L265" class="LineNr">265 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L266" class="LineNr">266 </span> <span class="Comment"># save registers</span> -<span id="L267" class="LineNr">267 </span> 50/push-EAX -<span id="L268" class="LineNr">268 </span> 51/push-ECX -<span id="L269" class="LineNr">269 </span> 52/push-EDX -<span id="L270" class="LineNr">270 </span> 53/push-EBX -<span id="L271" class="LineNr">271 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> -<span id="L272" class="LineNr">272 </span> <span class="Comment"># fd = 2 (stderr)</span> -<span id="L273" class="LineNr">273 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy 2 to EBX</span> -<span id="L274" class="LineNr">274 </span> <span class="Comment"># x = s+4</span> -<span id="L275" class="LineNr">275 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to ECX</span> -<span id="L276" class="LineNr">276 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ECX</span> -<span id="L277" class="LineNr">277 </span> <span class="Comment"># size = *s</span> -<span id="L278" class="LineNr">278 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0x14/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+20) to EDX</span> -<span id="L279" class="LineNr">279 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L280" class="LineNr">280 </span> <span class="Comment"># call write()</span> -<span id="L281" class="LineNr">281 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 1 to EAX</span> -<span id="L282" class="LineNr">282 </span> cd/syscall 0x80/imm8 -<span id="L283" class="LineNr">283 </span> <span class="Comment"># restore registers</span> -<span id="L284" class="LineNr">284 </span> 5b/pop-EBX -<span id="L285" class="LineNr">285 </span> 5a/pop-EDX -<span id="L286" class="LineNr">286 </span> 59/pop-ECX -<span id="L287" class="LineNr">287 </span> 58/pop-EAX -<span id="L288" class="LineNr">288 </span> <span class="Comment"># end</span> -<span id="L289" class="LineNr">289 </span> c3/return -<span id="L290" class="LineNr">290 </span> -<span id="L291" class="LineNr">291 </span>== data -<span id="L292" class="LineNr">292 </span>Newline: -<span id="L293" class="LineNr">293 </span> <span class="Comment"># size</span> -<span id="L294" class="LineNr">294 </span> 01 00 00 00 -<span id="L295" class="LineNr">295 </span> <span class="Comment"># data</span> -<span id="L296" class="LineNr">296 </span> 0a/newline -<span id="L297" class="LineNr">297 </span> -<span id="L298" class="LineNr">298 </span><span class="Comment"># for argv_equal tests</span> -<span id="L299" class="LineNr">299 </span>Null_argv: -<span id="L300" class="LineNr">300 </span> 00/null -<span id="L301" class="LineNr">301 </span>Abc_argv: -<span id="L302" class="LineNr">302 </span> 41/A 62/b 63/c 00/null -<span id="L303" class="LineNr">303 </span> -<span id="L304" class="LineNr">304 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> +<span id="L111" class="LineNr">111 </span><span class="SalientComment">## tests</span> +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span>test_compare_null_kernel_string_with_empty_array: +<span id="L114" class="LineNr">114 </span> <span class="Comment"># EAX = kernel_string_equal(Null_kernel_string, "")</span> +<span id="L115" class="LineNr">115 </span> <span class="Comment"># push args</span> +<span id="L116" class="LineNr">116 </span> 68/push ""/imm32 +<span id="L117" class="LineNr">117 </span> 68/push Null_kernel_string/imm32 +<span id="L118" class="LineNr">118 </span> <span class="Comment"># call</span> +<span id="L119" class="LineNr">119 </span> e8/call kernel_string_equal/disp32 +<span id="L120" class="LineNr">120 </span> <span class="Comment"># discard args</span> +<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L122" class="LineNr">122 </span> <span class="Comment"># call check_ints_equal(EAX, 1, msg)</span> +<span id="L123" class="LineNr">123 </span> <span class="Comment"># push args</span> +<span id="L124" class="LineNr">124 </span> 68/push "F - test_compare_null_kernel_string_with_empty_array"/imm32 +<span id="L125" class="LineNr">125 </span> 68/push 1/imm32/true +<span id="L126" class="LineNr">126 </span> 50/push-EAX +<span id="L127" class="LineNr">127 </span> <span class="Comment"># call</span> +<span id="L128" class="LineNr">128 </span> e8/call check_ints_equal/disp32 +<span id="L129" class="LineNr">129 </span> <span class="Comment"># discard args</span> +<span id="L130" class="LineNr">130 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L131" class="LineNr">131 </span> c3/return +<span id="L132" class="LineNr">132 </span> +<span id="L133" class="LineNr">133 </span>test_compare_null_kernel_string_with_non_empty_array: +<span id="L134" class="LineNr">134 </span> <span class="Comment"># EAX = kernel_string_equal(Null_kernel_string, "Abc")</span> +<span id="L135" class="LineNr">135 </span> <span class="Comment"># push args</span> +<span id="L136" class="LineNr">136 </span> 68/push "Abc"/imm32 +<span id="L137" class="LineNr">137 </span> 68/push Null_kernel_string/imm32 +<span id="L138" class="LineNr">138 </span> <span class="Comment"># call</span> +<span id="L139" class="LineNr">139 </span> e8/call kernel_string_equal/disp32 +<span id="L140" class="LineNr">140 </span> <span class="Comment"># discard args</span> +<span id="L141" class="LineNr">141 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L142" class="LineNr">142 </span> <span class="Comment"># call check_ints_equal(EAX, 0, msg)</span> +<span id="L143" class="LineNr">143 </span> <span class="Comment"># push args</span> +<span id="L144" class="LineNr">144 </span> 68/push "F - test_compare_null_kernel_string_with_non_empty_array"/imm32 +<span id="L145" class="LineNr">145 </span> 68/push 0/imm32/false +<span id="L146" class="LineNr">146 </span> 50/push-EAX +<span id="L147" class="LineNr">147 </span> <span class="Comment"># call</span> +<span id="L148" class="LineNr">148 </span> e8/call check_ints_equal/disp32 +<span id="L149" class="LineNr">149 </span> <span class="Comment"># discard args</span> +<span id="L150" class="LineNr">150 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L151" class="LineNr">151 </span> c3/return +<span id="L152" class="LineNr">152 </span> +<span id="L153" class="LineNr">153 </span>test_compare_kernel_string_with_equal_array: +<span id="L154" class="LineNr">154 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Abc")</span> +<span id="L155" class="LineNr">155 </span> <span class="Comment"># push args</span> +<span id="L156" class="LineNr">156 </span> 68/push "Abc"/imm32 +<span id="L157" class="LineNr">157 </span> 68/push Abc_kernel_string/imm32 +<span id="L158" class="LineNr">158 </span> <span class="Comment"># call</span> +<span id="L159" class="LineNr">159 </span> e8/call kernel_string_equal/disp32 +<span id="L160" class="LineNr">160 </span> <span class="Comment"># discard args</span> +<span id="L161" class="LineNr">161 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L162" class="LineNr">162 </span> <span class="Comment"># call check_ints_equal(EAX, 1, msg)</span> +<span id="L163" class="LineNr">163 </span> <span class="Comment"># push args</span> +<span id="L164" class="LineNr">164 </span> 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 +<span id="L165" class="LineNr">165 </span> 68/push 1/imm32/true +<span id="L166" class="LineNr">166 </span> 50/push-EAX +<span id="L167" class="LineNr">167 </span> <span class="Comment"># call</span> +<span id="L168" class="LineNr">168 </span> e8/call check_ints_equal/disp32 +<span id="L169" class="LineNr">169 </span> <span class="Comment"># discard args</span> +<span id="L170" class="LineNr">170 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L171" class="LineNr">171 </span> c3/return +<span id="L172" class="LineNr">172 </span> +<span id="L173" class="LineNr">173 </span>test_compare_kernel_string_with_inequal_array: +<span id="L174" class="LineNr">174 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Adc")</span> +<span id="L175" class="LineNr">175 </span> <span class="Comment"># push args</span> +<span id="L176" class="LineNr">176 </span> 68/push "Adc"/imm32 +<span id="L177" class="LineNr">177 </span> 68/push Abc_kernel_string/imm32 +<span id="L178" class="LineNr">178 </span> <span class="Comment"># call</span> +<span id="L179" class="LineNr">179 </span> e8/call kernel_string_equal/disp32 +<span id="L180" class="LineNr">180 </span> <span class="Comment"># discard args</span> +<span id="L181" class="LineNr">181 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L182" class="LineNr">182 </span> <span class="Comment"># call check_ints_equal(EAX, 0, msg)</span> +<span id="L183" class="LineNr">183 </span> <span class="Comment"># push args</span> +<span id="L184" class="LineNr">184 </span> 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 +<span id="L185" class="LineNr">185 </span> 68/push 0/imm32/false +<span id="L186" class="LineNr">186 </span> 50/push-EAX +<span id="L187" class="LineNr">187 </span> <span class="Comment"># call</span> +<span id="L188" class="LineNr">188 </span> e8/call check_ints_equal/disp32 +<span id="L189" class="LineNr">189 </span> <span class="Comment"># discard args</span> +<span id="L190" class="LineNr">190 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L191" class="LineNr">191 </span> c3/return +<span id="L192" class="LineNr">192 </span> +<span id="L193" class="LineNr">193 </span>test_compare_kernel_string_with_empty_array: +<span id="L194" class="LineNr">194 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "")</span> +<span id="L195" class="LineNr">195 </span> <span class="Comment"># push args</span> +<span id="L196" class="LineNr">196 </span> 68/push ""/imm32 +<span id="L197" class="LineNr">197 </span> 68/push Abc_kernel_string/imm32 +<span id="L198" class="LineNr">198 </span> <span class="Comment"># call</span> +<span id="L199" class="LineNr">199 </span> e8/call kernel_string_equal/disp32 +<span id="L200" class="LineNr">200 </span> <span class="Comment"># discard args</span> +<span id="L201" class="LineNr">201 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L202" class="LineNr">202 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> +<span id="L203" class="LineNr">203 </span> <span class="Comment"># push args</span> +<span id="L204" class="LineNr">204 </span> 68/push "F - test_compare_kernel_string_with_equal_array"/imm32 +<span id="L205" class="LineNr">205 </span> 68/push 0/imm32/false +<span id="L206" class="LineNr">206 </span> 50/push-EAX +<span id="L207" class="LineNr">207 </span> <span class="Comment"># call</span> +<span id="L208" class="LineNr">208 </span> e8/call check_ints_equal/disp32 +<span id="L209" class="LineNr">209 </span> <span class="Comment"># discard args</span> +<span id="L210" class="LineNr">210 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L211" class="LineNr">211 </span> c3/return +<span id="L212" class="LineNr">212 </span> +<span id="L213" class="LineNr">213 </span>test_compare_kernel_string_with_shorter_array: +<span id="L214" class="LineNr">214 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Ab")</span> +<span id="L215" class="LineNr">215 </span> <span class="Comment"># push args</span> +<span id="L216" class="LineNr">216 </span> 68/push "Ab"/imm32 +<span id="L217" class="LineNr">217 </span> 68/push Abc_kernel_string/imm32 +<span id="L218" class="LineNr">218 </span> <span class="Comment"># call</span> +<span id="L219" class="LineNr">219 </span> e8/call kernel_string_equal/disp32 +<span id="L220" class="LineNr">220 </span> <span class="Comment"># discard args</span> +<span id="L221" class="LineNr">221 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L222" class="LineNr">222 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> +<span id="L223" class="LineNr">223 </span> <span class="Comment"># push args</span> +<span id="L224" class="LineNr">224 </span> 68/push "F - test_compare_kernel_string_with_shorter_array"/imm32 +<span id="L225" class="LineNr">225 </span> 68/push 0/imm32/false +<span id="L226" class="LineNr">226 </span> 50/push-EAX +<span id="L227" class="LineNr">227 </span> <span class="Comment"># call</span> +<span id="L228" class="LineNr">228 </span> e8/call check_ints_equal/disp32 +<span id="L229" class="LineNr">229 </span> <span class="Comment"># discard args</span> +<span id="L230" class="LineNr">230 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L231" class="LineNr">231 </span> c3/return +<span id="L232" class="LineNr">232 </span> +<span id="L233" class="LineNr">233 </span>test_compare_kernel_string_with_longer_array: +<span id="L234" class="LineNr">234 </span> <span class="Comment"># EAX = kernel_string_equal(Abc_kernel_string, "Abcd")</span> +<span id="L235" class="LineNr">235 </span> <span class="Comment"># push args</span> +<span id="L236" class="LineNr">236 </span> 68/push "Abcd"/imm32 +<span id="L237" class="LineNr">237 </span> 68/push Abc_kernel_string/imm32 +<span id="L238" class="LineNr">238 </span> <span class="Comment"># call</span> +<span id="L239" class="LineNr">239 </span> e8/call kernel_string_equal/disp32 +<span id="L240" class="LineNr">240 </span> <span class="Comment"># discard args</span> +<span id="L241" class="LineNr">241 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L242" class="LineNr">242 </span> <span class="Comment"># call check_ints_equal(EAX, 0)</span> +<span id="L243" class="LineNr">243 </span> <span class="Comment"># push args</span> +<span id="L244" class="LineNr">244 </span> 68/push "F - test_compare_kernel_string_with_longer_array"/imm32 +<span id="L245" class="LineNr">245 </span> 68/push 0/imm32/false +<span id="L246" class="LineNr">246 </span> 50/push-EAX +<span id="L247" class="LineNr">247 </span> <span class="Comment"># call</span> +<span id="L248" class="LineNr">248 </span> e8/call check_ints_equal/disp32 +<span id="L249" class="LineNr">249 </span> <span class="Comment"># discard args</span> +<span id="L250" class="LineNr">250 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L251" class="LineNr">251 </span> c3/return +<span id="L252" class="LineNr">252 </span> +<span id="L253" class="LineNr">253 </span><span class="SalientComment">## helpers</span> +<span id="L254" class="LineNr">254 </span> +<span id="L255" class="LineNr">255 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> +<span id="L256" class="LineNr">256 </span>check_ints_equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> +<span id="L257" class="LineNr">257 </span> <span class="Comment"># prolog</span> +<span id="L258" class="LineNr">258 </span> 55/push-EBP +<span id="L259" class="LineNr">259 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L260" class="LineNr">260 </span> <span class="Comment"># save registers</span> +<span id="L261" class="LineNr">261 </span> 51/push-ECX +<span id="L262" class="LineNr">262 </span> 53/push-EBX +<span id="L263" class="LineNr">263 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> +<span id="L264" class="LineNr">264 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span> +<span id="L265" class="LineNr">265 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EBX</span> +<span id="L266" class="LineNr">266 </span> <span class="Comment"># if EAX == b/EBX</span> +<span id="L267" class="LineNr">267 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> +<span id="L268" class="LineNr">268 </span> 75/jump-if-unequal $check_ints_equal:else/disp8 +<span id="L269" class="LineNr">269 </span> <span class="Comment"># print('.')</span> +<span id="L270" class="LineNr">270 </span> <span class="Comment"># push args</span> +<span id="L271" class="LineNr">271 </span> 68/push "."/imm32 +<span id="L272" class="LineNr">272 </span> <span class="Comment"># call</span> +<span id="L273" class="LineNr">273 </span> e8/call write_stderr/disp32 +<span id="L274" class="LineNr">274 </span> <span class="Comment"># discard arg</span> +<span id="L275" class="LineNr">275 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L276" class="LineNr">276 </span> <span class="Comment"># return</span> +<span id="L277" class="LineNr">277 </span> eb/jump $check_ints_equal:end/disp8 +<span id="L278" class="LineNr">278 </span> <span class="Comment"># else:</span> +<span id="L279" class="LineNr">279 </span>$check_ints_equal:else: +<span id="L280" class="LineNr">280 </span> <span class="Comment"># copy msg into ECX</span> +<span id="L281" class="LineNr">281 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x10/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+16) to ECX</span> +<span id="L282" class="LineNr">282 </span> <span class="Comment"># print(ECX)</span> +<span id="L283" class="LineNr">283 </span> <span class="Comment"># push args</span> +<span id="L284" class="LineNr">284 </span> 51/push-ECX +<span id="L285" class="LineNr">285 </span> <span class="Comment"># call</span> +<span id="L286" class="LineNr">286 </span> e8/call write_stderr/disp32 +<span id="L287" class="LineNr">287 </span> <span class="Comment"># discard arg</span> +<span id="L288" class="LineNr">288 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L289" class="LineNr">289 </span> <span class="Comment"># print newline</span> +<span id="L290" class="LineNr">290 </span> <span class="Comment"># push args</span> +<span id="L291" class="LineNr">291 </span> 68/push Newline/imm32 +<span id="L292" class="LineNr">292 </span> <span class="Comment"># call</span> +<span id="L293" class="LineNr">293 </span> e8/call write_stderr/disp32 +<span id="L294" class="LineNr">294 </span> <span class="Comment"># discard arg</span> +<span id="L295" class="LineNr">295 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L296" class="LineNr">296 </span>$check_ints_equal:end: +<span id="L297" class="LineNr">297 </span> <span class="Comment"># restore registers</span> +<span id="L298" class="LineNr">298 </span> 5b/pop-to-EBX +<span id="L299" class="LineNr">299 </span> 59/pop-to-ECX +<span id="L300" class="LineNr">300 </span> <span class="Comment"># end</span> +<span id="L301" class="LineNr">301 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L302" class="LineNr">302 </span> 5d/pop-to-EBP +<span id="L303" class="LineNr">303 </span> c3/return +<span id="L304" class="LineNr">304 </span> +<span id="L305" class="LineNr">305 </span>write_stderr: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L306" class="LineNr">306 </span> <span class="Comment"># prolog</span> +<span id="L307" class="LineNr">307 </span> 55/push-EBP +<span id="L308" class="LineNr">308 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L309" class="LineNr">309 </span> <span class="Comment"># save registers</span> +<span id="L310" class="LineNr">310 </span> 50/push-EAX +<span id="L311" class="LineNr">311 </span> 51/push-ECX +<span id="L312" class="LineNr">312 </span> 52/push-EDX +<span id="L313" class="LineNr">313 </span> 53/push-EBX +<span id="L314" class="LineNr">314 </span> <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span> +<span id="L315" class="LineNr">315 </span> <span class="Comment"># fd = 2 (stderr)</span> +<span id="L316" class="LineNr">316 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/imm32 <span class="Comment"># copy to EBX</span> +<span id="L317" class="LineNr">317 </span> <span class="Comment"># x = s+4</span> +<span id="L318" class="LineNr">318 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span> +<span id="L319" class="LineNr">319 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ECX</span> +<span id="L320" class="LineNr">320 </span> <span class="Comment"># size = *s</span> +<span id="L321" class="LineNr">321 </span> 8b/copy 1/mod/*+disp8 4/rm32/SIB 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDX</span> +<span id="L322" class="LineNr">322 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L323" class="LineNr">323 </span> <span class="Comment"># call write()</span> +<span id="L324" class="LineNr">324 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy to EAX</span> +<span id="L325" class="LineNr">325 </span> cd/syscall 0x80/imm8 +<span id="L326" class="LineNr">326 </span> <span class="Comment"># restore registers</span> +<span id="L327" class="LineNr">327 </span> 5b/pop-to-EBX +<span id="L328" class="LineNr">328 </span> 5a/pop-to-EDX +<span id="L329" class="LineNr">329 </span> 59/pop-to-ECX +<span id="L330" class="LineNr">330 </span> 58/pop-to-EAX +<span id="L331" class="LineNr">331 </span> <span class="Comment"># end</span> +<span id="L332" class="LineNr">332 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L333" class="LineNr">333 </span> 5d/pop-to-EBP +<span id="L334" class="LineNr">334 </span> c3/return +<span id="L335" class="LineNr">335 </span> +<span id="L336" class="LineNr">336 </span>== data +<span id="L337" class="LineNr">337 </span>Newline: +<span id="L338" class="LineNr">338 </span> <span class="Comment"># size</span> +<span id="L339" class="LineNr">339 </span> 01 00 00 00 +<span id="L340" class="LineNr">340 </span> <span class="Comment"># data</span> +<span id="L341" class="LineNr">341 </span> 0a/newline +<span id="L342" class="LineNr">342 </span> +<span id="L343" class="LineNr">343 </span><span class="Comment"># for kernel_string_equal tests</span> +<span id="L344" class="LineNr">344 </span>Null_kernel_string: +<span id="L345" class="LineNr">345 </span> 00/null +<span id="L346" class="LineNr">346 </span>Abc_kernel_string: +<span id="L347" class="LineNr">347 </span> 41/A 62/b 63/c 00/null +<span id="L348" class="LineNr">348 </span> +<span id="L349" class="LineNr">349 </span><span class="Comment"># vim:ft=subx:nowrap:so=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex12.subx.html b/html/subx/examples/ex12.subx.html new file mode 100644 index 00000000..93feff8c --- /dev/null +++ b/html/subx/examples/ex12.subx.html @@ -0,0 +1,103 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - subx/examples/ex12.subx</title> +<meta name="Generator" content="Vim/8.0"> +<meta name="plugin-version" content="vim7.4_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.LineNr { color: #444444; } +.Delimiter { color: #800080; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +.SalientComment { color: #00ffff; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## example showing mmap syscall</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment"># Create a new segment using mmap, save the address, write to it.</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx translate examples/ex12.subx -o examples/ex12</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ subx run examples/ex12</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># You shouldn't get a segmentation fault.</span> +<span id="L8" class="LineNr"> 8 </span> +<span id="L9" class="LineNr"> 9 </span>== code +<span id="L10" class="LineNr">10 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L11" class="LineNr">11 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L12" class="LineNr">12 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L13" class="LineNr">13 </span> +<span id="L14" class="LineNr">14 </span> <span class="Comment"># mmap(0x1000)</span> +<span id="L15" class="LineNr">15 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> mmap_new_segment/imm32 <span class="Comment"># copy to EBX</span> +<span id="L16" class="LineNr">16 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x5a/imm32/mmap <span class="Comment"># copy to EAX</span> +<span id="L17" class="LineNr">17 </span> cd/syscall 0x80/imm8 +<span id="L18" class="LineNr">18 </span> +<span id="L19" class="LineNr">19 </span> <span class="Comment"># store to *EAX</span> +<span id="L20" class="LineNr">20 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x34/imm32 <span class="Comment"># copy to *EAX</span> +<span id="L21" class="LineNr">21 </span> +<span id="L22" class="LineNr">22 </span> <span class="Comment"># exit(EAX)</span> +<span id="L23" class="LineNr">23 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L24" class="LineNr">24 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> +<span id="L25" class="LineNr">25 </span> cd/syscall 0x80/imm8 +<span id="L26" class="LineNr">26 </span> +<span id="L27" class="LineNr">27 </span>== data +<span id="L28" class="LineNr">28 </span><span class="Comment"># various constants used here were found in the Linux sources (search for file mman-common.h)</span> +<span id="L29" class="LineNr">29 </span>mmap_new_segment: <span class="Comment"># type mmap_arg_struct</span> +<span id="L30" class="LineNr">30 </span> <span class="Comment"># addr</span> +<span id="L31" class="LineNr">31 </span> 00 00 00 00 <span class="Comment"># null</span> +<span id="L32" class="LineNr">32 </span> <span class="Comment"># len</span> +<span id="L33" class="LineNr">33 </span> 00 01 00 00 <span class="Comment"># 0x1000</span> +<span id="L34" class="LineNr">34 </span> <span class="Comment"># protection flags</span> +<span id="L35" class="LineNr">35 </span> 03 00 00 00 <span class="Comment"># PROT_READ | PROT_WRITE</span> +<span id="L36" class="LineNr">36 </span> <span class="Comment"># sharing flags</span> +<span id="L37" class="LineNr">37 </span> 22 00 00 00 <span class="Comment"># MAP_PRIVATE | MAP_ANONYMOUS</span> +<span id="L38" class="LineNr">38 </span> <span class="Comment"># fd</span> +<span id="L39" class="LineNr">39 </span> ff ff ff ff <span class="Comment"># -1 since MAP_ANONYMOUS is specified</span> +<span id="L40" class="LineNr">40 </span> <span class="Comment"># offset</span> +<span id="L41" class="LineNr">41 </span> 00 00 00 00 <span class="Comment"># 0 since MAP_ANONYMOUS is specified</span> +<span id="L42" class="LineNr">42 </span> +<span id="L43" class="LineNr">43 </span><span class="Comment"># vim:ft=subx:nowrap:tw&</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/examples/ex2.subx.html b/html/subx/examples/ex2.subx.html index 79014ace..81cce37f 100644 --- a/html/subx/examples/ex2.subx.html +++ b/html/subx/examples/ex2.subx.html @@ -16,6 +16,7 @@ a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } +.Delimiter { color: #800080; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -55,9 +56,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## add 1 and 1, and return the result in the exit code</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex2.subx ex2</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex2</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex2.subx -o examples/ex2</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex2</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># 2</span> @@ -66,10 +67,10 @@ if ('onhashchange' in window) { <span id="L11" class="LineNr">11 </span><span class="Comment"># instruction effective address operand displacement immediate</span> <span id="L12" class="LineNr">12 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L13" class="LineNr">13 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L14" class="LineNr">14 </span> bb/copy 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L15" class="LineNr">15 </span> 81 0/subop/add 3/mod/direct 3/rm32/EBX 1/imm32 <span class="Comment"># add 1 to EBX</span> +<span id="L14" class="LineNr">14 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EBX</span> +<span id="L15" class="LineNr">15 </span> 43/inc-EBX <span id="L16" class="LineNr">16 </span> <span class="Comment"># exit(EBX)</span> -<span id="L17" class="LineNr">17 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> +<span id="L17" class="LineNr">17 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EAX</span> <span id="L18" class="LineNr">18 </span> cd/syscall 0x80/imm8 <span id="L19" class="LineNr">19 </span> <span id="L20" class="LineNr">20 </span><span class="Comment"># vim:ft=subx</span> diff --git a/html/subx/examples/ex3.subx.html b/html/subx/examples/ex3.subx.html index ef71e45f..08832eed 100644 --- a/html/subx/examples/ex3.subx.html +++ b/html/subx/examples/ex3.subx.html @@ -55,9 +55,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## add the first 10 numbers, and return the result in the exit code</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex3.subx ex3</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex3</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex3.subx -o examples/ex3</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex3</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># 55</span> @@ -67,24 +67,24 @@ if ('onhashchange' in window) { <span id="L12" class="LineNr">12 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L13" class="LineNr">13 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> <span id="L14" class="LineNr">14 </span> <span class="Comment"># result: EBX = 0</span> -<span id="L15" class="LineNr">15 </span> bb/copy 0/imm32 <span class="Comment"># copy 0 to EBX</span> +<span id="L15" class="LineNr">15 </span> bb/copy 0/imm32 <span class="Comment"># copy to EBX</span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># counter: ECX = 1</span> -<span id="L17" class="LineNr">17 </span> b9/copy 1/imm32 <span class="Comment"># copy 1 to ECX</span> +<span id="L17" class="LineNr">17 </span> b9/copy 1/imm32 <span class="Comment"># copy to ECX</span> <span id="L18" class="LineNr">18 </span> <span id="L19" class="LineNr">19 </span>$loop: <span id="L20" class="LineNr">20 </span> <span class="Comment"># while (counter <= 10)</span> -<span id="L21" class="LineNr">21 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX 0xa/imm32 <span class="Comment"># compare ECX, 10/imm</span> +<span id="L21" class="LineNr">21 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX 0xa/imm32 <span class="Comment"># compare ECX</span> <span id="L22" class="LineNr">22 </span> 7f/jump-if-greater $exit/disp8 <span id="L23" class="LineNr">23 </span> <span class="Comment"># result += counter</span> <span id="L24" class="LineNr">24 </span> 01/add 3/mod/direct 3/rm32/EBX 1/r32/ECX <span class="Comment"># add ECX to EBX</span> <span id="L25" class="LineNr">25 </span> <span class="Comment"># ++counter</span> -<span id="L26" class="LineNr">26 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX 1/imm32 <span class="Comment"># add 1 to ECX</span> +<span id="L26" class="LineNr">26 </span> 41/inc-ECX <span id="L27" class="LineNr">27 </span> <span class="Comment"># loop</span> <span id="L28" class="LineNr">28 </span> eb/jump $loop/disp8 <span id="L29" class="LineNr">29 </span> <span id="L30" class="LineNr">30 </span>$exit: <span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EBX)</span> -<span id="L32" class="LineNr">32 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> +<span id="L32" class="LineNr">32 </span> b8/copy 1/imm32 <span class="Comment"># copy to EAX</span> <span id="L33" class="LineNr">33 </span> cd/syscall 0x80/imm8 <span id="L34" class="LineNr">34 </span> <span id="L35" class="LineNr">35 </span><span class="Comment"># vim:ft=subx:nowrap</span> diff --git a/html/subx/examples/ex4.subx.html b/html/subx/examples/ex4.subx.html index aff62ea1..377949ae 100644 --- a/html/subx/examples/ex4.subx.html +++ b/html/subx/examples/ex4.subx.html @@ -55,9 +55,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## read a character from stdin, save it to a global, write it to stdout</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex4.subx ex4</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex4</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex4.subx -o examples/ex4</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex4</span> <span id="L6" class="LineNr"> 6 </span> <span id="L7" class="LineNr"> 7 </span>== code <span id="L8" class="LineNr"> 8 </span><span class="Comment"># instruction effective address operand displacement immediate</span> @@ -66,28 +66,28 @@ if ('onhashchange' in window) { <span id="L11" class="LineNr">11 </span> <span id="L12" class="LineNr">12 </span> <span class="Comment"># read(stdin, x, 1)</span> <span id="L13" class="LineNr">13 </span> <span class="Comment"># fd = 0 (stdin)</span> -<span id="L14" class="LineNr">14 </span> bb/copy 0/imm32 <span class="Comment"># copy 0 to EBX</span> +<span id="L14" class="LineNr">14 </span> bb/copy 0/imm32 <span class="Comment"># copy to EBX</span> <span id="L15" class="LineNr">15 </span> <span class="Comment"># initialize x (location to write result to)</span> <span id="L16" class="LineNr">16 </span> b9/copy x/imm32 <span class="Comment"># copy to ECX</span> <span id="L17" class="LineNr">17 </span> <span class="Comment"># size = 1 character</span> -<span id="L18" class="LineNr">18 </span> ba/copy 1/imm32 <span class="Comment"># copy 1 to EDX</span> +<span id="L18" class="LineNr">18 </span> ba/copy 1/imm32 <span class="Comment"># copy to EDX</span> <span id="L19" class="LineNr">19 </span> <span class="Comment"># read(fd, x, size)</span> -<span id="L20" class="LineNr">20 </span> b8/copy 3/imm32/read <span class="Comment"># copy 3 to EAX</span> +<span id="L20" class="LineNr">20 </span> b8/copy 3/imm32/read <span class="Comment"># copy to EAX</span> <span id="L21" class="LineNr">21 </span> cd/syscall 0x80/imm8 <span id="L22" class="LineNr">22 </span> <span id="L23" class="LineNr">23 </span> <span class="Comment"># write(stdout, x, 1)</span> <span id="L24" class="LineNr">24 </span> <span class="Comment"># fd = 1 (stdout)</span> -<span id="L25" class="LineNr">25 </span> bb/copy 1/imm32 <span class="Comment"># copy 1 to EBX</span> +<span id="L25" class="LineNr">25 </span> bb/copy 1/imm32 <span class="Comment"># copy to EBX</span> <span id="L26" class="LineNr">26 </span> <span class="Comment"># initialize x (location to read from)</span> <span id="L27" class="LineNr">27 </span> b9/copy x/imm32 <span class="Comment"># copy to ECX</span> <span id="L28" class="LineNr">28 </span> <span class="Comment"># size = 1 character</span> -<span id="L29" class="LineNr">29 </span> ba/copy 1/imm32 <span class="Comment"># copy 1 to EDX</span> +<span id="L29" class="LineNr">29 </span> ba/copy 1/imm32 <span class="Comment"># copy to EDX</span> <span id="L30" class="LineNr">30 </span> <span class="Comment"># write(fd, x, size)</span> -<span id="L31" class="LineNr">31 </span> b8/copy 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L31" class="LineNr">31 </span> b8/copy 4/imm32/write <span class="Comment"># copy to EAX</span> <span id="L32" class="LineNr">32 </span> cd/syscall 0x80/imm8 <span id="L33" class="LineNr">33 </span> <span id="L34" class="LineNr">34 </span> <span class="Comment"># exit(EBX)</span> -<span id="L35" class="LineNr">35 </span> b8/copy 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L35" class="LineNr">35 </span> b8/copy 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L36" class="LineNr">36 </span> cd/syscall 0x80/imm8 <span id="L37" class="LineNr">37 </span> <span id="L38" class="LineNr">38 </span>== data diff --git a/html/subx/examples/ex5.subx.html b/html/subx/examples/ex5.subx.html index 7bd76e98..4392d9e2 100644 --- a/html/subx/examples/ex5.subx.html +++ b/html/subx/examples/ex5.subx.html @@ -56,9 +56,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## read a character from stdin, save it to a local on the stack, write it to stdout</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex5.subx ex5</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex5</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex5.subx -o examples/ex5</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex5</span> <span id="L6" class="LineNr"> 6 </span> <span id="L7" class="LineNr"> 7 </span>== code <span id="L8" class="LineNr"> 8 </span><span class="Comment"># instruction effective address operand displacement immediate</span> @@ -67,32 +67,32 @@ if ('onhashchange' in window) { <span id="L11" class="LineNr">11 </span> <span id="L12" class="LineNr">12 </span><span class="Comment"># main:</span> <span id="L13" class="LineNr">13 </span> <span class="Comment"># allocate x on the stack</span> -<span id="L14" class="LineNr">14 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># subtract 4 bytes from ESP</span> +<span id="L14" class="LineNr">14 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># subtract from ESP</span> <span id="L15" class="LineNr">15 </span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># read(stdin, x, 1)</span> <span id="L17" class="LineNr">17 </span> <span class="Comment"># fd = 0 (stdin)</span> -<span id="L18" class="LineNr">18 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy 0 to EBX</span> +<span id="L18" class="LineNr">18 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EBX</span> <span id="L19" class="LineNr">19 </span> <span class="Comment"># initialize x (location to write result to)</span> <span id="L20" class="LineNr">20 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy ESP+4 to ECX</span> <span id="L21" class="LineNr">21 </span> <span class="Comment"># size = 1 character</span> -<span id="L22" class="LineNr">22 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EDX</span> +<span id="L22" class="LineNr">22 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EDX</span> <span id="L23" class="LineNr">23 </span> <span class="Comment"># read(fd, x, size)</span> -<span id="L24" class="LineNr">24 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/imm32/read <span class="Comment"># copy 3 to EAX</span> +<span id="L24" class="LineNr">24 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/imm32/read <span class="Comment"># copy to EAX</span> <span id="L25" class="LineNr">25 </span> cd/syscall 0x80/imm8 <span id="L26" class="LineNr">26 </span> <span id="L27" class="LineNr">27 </span> <span class="Comment"># write(stdout, x, 1)</span> <span id="L28" class="LineNr">28 </span> <span class="Comment"># fd = 1 (stdout)</span> -<span id="L29" class="LineNr">29 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EBX</span> +<span id="L29" class="LineNr">29 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EBX</span> <span id="L30" class="LineNr">30 </span> <span class="Comment"># initialize x (location to read from)</span> <span id="L31" class="LineNr">31 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy ESP+4 to ECX</span> <span id="L32" class="LineNr">32 </span> <span class="Comment"># size = 1 character</span> -<span id="L33" class="LineNr">33 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EDX</span> +<span id="L33" class="LineNr">33 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy to EDX</span> <span id="L34" class="LineNr">34 </span> <span class="Comment"># write(fd, x, size)</span> -<span id="L35" class="LineNr">35 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L35" class="LineNr">35 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy to EAX</span> <span id="L36" class="LineNr">36 </span> cd/syscall 0x80/imm8 <span id="L37" class="LineNr">37 </span> <span id="L38" class="LineNr">38 </span> <span class="Comment"># exit(EBX)</span> -<span id="L39" class="LineNr">39 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L39" class="LineNr">39 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L40" class="LineNr">40 </span> cd/syscall 0x80/imm8 <span id="L41" class="LineNr">41 </span> <span id="L42" class="LineNr">42 </span><span class="Comment"># vim:ft=subx:nowrap</span> diff --git a/html/subx/examples/ex6.subx.html b/html/subx/examples/ex6.subx.html index 77c6293e..8ad44018 100644 --- a/html/subx/examples/ex6.subx.html +++ b/html/subx/examples/ex6.subx.html @@ -55,9 +55,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## print out a (global variable) string to stdout</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex6.subx ex6</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex6</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex6.subx -o examples/ex6</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex6</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Hello, world!</span> <span id="L7" class="LineNr"> 7 </span> <span id="L8" class="LineNr"> 8 </span>== code @@ -67,17 +67,17 @@ if ('onhashchange' in window) { <span id="L12" class="LineNr">12 </span> <span id="L13" class="LineNr">13 </span> <span class="Comment"># write(stdout, x, size)</span> <span id="L14" class="LineNr">14 </span> <span class="Comment"># fd = 1 (stdout)</span> -<span id="L15" class="LineNr">15 </span> bb/copy 1/imm32 <span class="Comment"># copy 1 to EBX</span> +<span id="L15" class="LineNr">15 </span> bb/copy 1/imm32 <span class="Comment"># copy to EBX</span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># initialize x (location to write result to)</span> <span id="L17" class="LineNr">17 </span> b9/copy x/imm32 <span class="Comment"># copy to ECX</span> <span id="L18" class="LineNr">18 </span> <span class="Comment"># initialize size</span> <span id="L19" class="LineNr">19 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 2/r32/EDX size/disp32 <span class="Comment"># copy *size to EDX</span> <span id="L20" class="LineNr">20 </span> <span class="Comment"># write(fd, x, size)</span> -<span id="L21" class="LineNr">21 </span> b8/copy 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L21" class="LineNr">21 </span> b8/copy 4/imm32/write <span class="Comment"># copy to EAX</span> <span id="L22" class="LineNr">22 </span> cd/syscall 0x80/imm8 <span id="L23" class="LineNr">23 </span> <span id="L24" class="LineNr">24 </span> <span class="Comment"># exit(EBX)</span> -<span id="L25" class="LineNr">25 </span> b8/copy 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L25" class="LineNr">25 </span> b8/copy 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L26" class="LineNr">26 </span> cd/syscall 0x80/imm8 <span id="L27" class="LineNr">27 </span> <span id="L28" class="LineNr">28 </span>== data @@ -85,7 +85,7 @@ if ('onhashchange' in window) { <span id="L30" class="LineNr">30 </span> 0e 00 00 00 <span class="Comment"># 14</span> <span id="L31" class="LineNr">31 </span>x: <span class="Comment"># string to print</span> <span id="L32" class="LineNr">32 </span> 48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a 00 -<span id="L33" class="LineNr">33 </span><span class="Comment"># h e l l o , ␣ w o r l d ! newline null</span> +<span id="L33" class="LineNr">33 </span><span class="Comment"># H e l l o , ␣ w o r l d ! newline null</span> <span id="L34" class="LineNr">34 </span> <span id="L35" class="LineNr">35 </span><span class="Comment"># vim:ft=subx:nowrap</span> </pre> diff --git a/html/subx/examples/ex7.subx.html b/html/subx/examples/ex7.subx.html index 8a971671..d5ef4a99 100644 --- a/html/subx/examples/ex7.subx.html +++ b/html/subx/examples/ex7.subx.html @@ -59,9 +59,9 @@ if ('onhashchange' in window) { <span id="L3" class="LineNr"> 3 </span><span class="Comment"># it for reading, read a character from it, close it, delete it, and return</span> <span id="L4" class="LineNr"> 4 </span><span class="Comment"># the character read.</span> <span id="L5" class="LineNr"> 5 </span><span class="Comment">#</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># To run:</span> -<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ subx translate ex8.subx ex8</span> -<span id="L8" class="LineNr"> 8 </span><span class="Comment"># $ subx run ex8</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ subx translate examples/ex7.subx -o examples/ex7</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># $ subx run examples/ex7</span> <span id="L9" class="LineNr"> 9 </span><span class="Comment"># Expected result:</span> <span id="L10" class="LineNr"> 10 </span><span class="Comment"># $ echo $?</span> <span id="L11" class="LineNr"> 11 </span><span class="Comment"># 97</span> @@ -74,14 +74,14 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr"> 18 </span> <span class="Comment"># creat(filename)</span> <span id="L19" class="LineNr"> 19 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> <span id="L20" class="LineNr"> 20 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy to ECX</span> -<span id="L21" class="LineNr"> 21 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32/creat <span class="Comment"># copy 8 to EAX</span> +<span id="L21" class="LineNr"> 21 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32/creat <span class="Comment"># copy to EAX</span> <span id="L22" class="LineNr"> 22 </span> cd/syscall 0x80/imm8 <span id="L23" class="LineNr"> 23 </span> <span id="L24" class="LineNr"> 24 </span> <span class="Comment"># stream = open(filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte</span> <span id="L25" class="LineNr"> 25 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> -<span id="L26" class="LineNr"> 26 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/wronly <span class="Comment"># copy 1 to ECX</span> -<span id="L27" class="LineNr"> 27 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy 0 to EDX</span> -<span id="L28" class="LineNr"> 28 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/imm32/open <span class="Comment"># copy 5 to EAX</span> +<span id="L26" class="LineNr"> 26 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/wronly <span class="Comment"># copy to ECX</span> +<span id="L27" class="LineNr"> 27 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy to EDX</span> +<span id="L28" class="LineNr"> 28 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/imm32/open <span class="Comment"># copy to EAX</span> <span id="L29" class="LineNr"> 29 </span> cd/syscall 0x80/imm8 <span id="L30" class="LineNr"> 30 </span> <span class="Comment"># save stream</span> <span id="L31" class="LineNr"> 31 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> @@ -93,8 +93,8 @@ if ('onhashchange' in window) { <span id="L37" class="LineNr"> 37 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> <span id="L38" class="LineNr"> 38 </span> <span class="Comment">#</span> <span id="L39" class="LineNr"> 39 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> a/imm32 <span class="Comment"># copy to ECX</span> -<span id="L40" class="LineNr"> 40 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/size <span class="Comment"># copy 1 to EDX</span> -<span id="L41" class="LineNr"> 41 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L40" class="LineNr"> 40 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/size <span class="Comment"># copy to EDX</span> +<span id="L41" class="LineNr"> 41 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy to EAX</span> <span id="L42" class="LineNr"> 42 </span> cd/syscall 0x80/imm8 <span id="L43" class="LineNr"> 43 </span> <span id="L44" class="LineNr"> 44 </span> <span class="Comment"># close(stream)</span> @@ -102,14 +102,14 @@ if ('onhashchange' in window) { <span id="L46" class="LineNr"> 46 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> <span id="L47" class="LineNr"> 47 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> <span id="L48" class="LineNr"> 48 </span> <span class="Comment">#</span> -<span id="L49" class="LineNr"> 49 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/imm32/close <span class="Comment"># copy 6 to EAX</span> +<span id="L49" class="LineNr"> 49 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/imm32/close <span class="Comment"># copy to EAX</span> <span id="L50" class="LineNr"> 50 </span> cd/syscall 0x80/imm8 <span id="L51" class="LineNr"> 51 </span> <span id="L52" class="LineNr"> 52 </span> <span class="Comment"># stream = open(filename, O_RDONLY, 0)</span> <span id="L53" class="LineNr"> 53 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> -<span id="L54" class="LineNr"> 54 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32/rdonly <span class="Comment"># copy 0 to ECX</span> +<span id="L54" class="LineNr"> 54 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32/rdonly <span class="Comment"># copy to ECX</span> <span id="L55" class="LineNr"> 55 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy to EDX</span> -<span id="L56" class="LineNr"> 56 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/imm32/open <span class="Comment"># copy 5 to EAX</span> +<span id="L56" class="LineNr"> 56 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/imm32/open <span class="Comment"># copy to EAX</span> <span id="L57" class="LineNr"> 57 </span> cd/syscall 0x80/imm8 <span id="L58" class="LineNr"> 58 </span> <span class="Comment"># save stream</span> <span id="L59" class="LineNr"> 59 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> @@ -121,8 +121,8 @@ if ('onhashchange' in window) { <span id="L65" class="LineNr"> 65 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> <span id="L66" class="LineNr"> 66 </span> <span class="Comment">#</span> <span id="L67" class="LineNr"> 67 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> b/imm32 <span class="Comment"># copy to ECX</span> -<span id="L68" class="LineNr"> 68 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/size <span class="Comment"># copy 1 to EDX</span> -<span id="L69" class="LineNr"> 69 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/imm32/read <span class="Comment"># copy 3 to EAX</span> +<span id="L68" class="LineNr"> 68 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/size <span class="Comment"># copy to EDX</span> +<span id="L69" class="LineNr"> 69 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/imm32/read <span class="Comment"># copy to EAX</span> <span id="L70" class="LineNr"> 70 </span> cd/syscall 0x80/imm8 <span id="L71" class="LineNr"> 71 </span> <span id="L72" class="LineNr"> 72 </span> <span class="Comment"># close(stream)</span> @@ -130,12 +130,12 @@ if ('onhashchange' in window) { <span id="L74" class="LineNr"> 74 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> <span id="L75" class="LineNr"> 75 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> <span id="L76" class="LineNr"> 76 </span> <span class="Comment">#</span> -<span id="L77" class="LineNr"> 77 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/imm32/close <span class="Comment"># copy 6 to EAX</span> +<span id="L77" class="LineNr"> 77 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/imm32/close <span class="Comment"># copy to EAX</span> <span id="L78" class="LineNr"> 78 </span> cd/syscall 0x80/imm8 <span id="L79" class="LineNr"> 79 </span> <span id="L80" class="LineNr"> 80 </span> <span class="Comment"># unlink(filename)</span> <span id="L81" class="LineNr"> 81 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> -<span id="L82" class="LineNr"> 82 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xa/imm32/unlink <span class="Comment"># copy 10 to EAX</span> +<span id="L82" class="LineNr"> 82 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xa/imm32/unlink <span class="Comment"># copy to EAX</span> <span id="L83" class="LineNr"> 83 </span> cd/syscall 0x80/imm8 <span id="L84" class="LineNr"> 84 </span> <span id="L85" class="LineNr"> 85 </span> <span class="Comment"># exit(b)</span> @@ -143,7 +143,7 @@ if ('onhashchange' in window) { <span id="L87" class="LineNr"> 87 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> b/imm32 <span class="Comment"># copy to EBX</span> <span id="L88" class="LineNr"> 88 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> <span id="L89" class="LineNr"> 89 </span> <span class="Comment">#</span> -<span id="L90" class="LineNr"> 90 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L90" class="LineNr"> 90 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L91" class="LineNr"> 91 </span> cd/syscall 0x80/imm8 <span id="L92" class="LineNr"> 92 </span> <span id="L93" class="LineNr"> 93 </span>== data diff --git a/html/subx/examples/ex8.subx.html b/html/subx/examples/ex8.subx.html index 65f5e09c..abb09b84 100644 --- a/html/subx/examples/ex8.subx.html +++ b/html/subx/examples/ex8.subx.html @@ -56,9 +56,9 @@ if ('onhashchange' in window) { <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## Example reading commandline arguments: compute length of first arg.</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> -<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex8.subx ex8</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex8 abc de fghi</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate examples/ex8.subx -o examples/ex8</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex8 abc de fghi</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># 3 # length of 'abc'</span> @@ -74,36 +74,36 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr">18 </span><span class="Comment"># instruction effective address operand displacement immediate</span> <span id="L19" class="LineNr">19 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L20" class="LineNr">20 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L21" class="LineNr">21 </span> <span class="Comment"># var s = argv[1] (EBX)</span> -<span id="L22" class="LineNr">22 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 3/r32/EBX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EBX</span> -<span id="L23" class="LineNr">23 </span> <span class="Comment"># call ascii_length(EBX)</span> +<span id="L21" class="LineNr">21 </span> <span class="Comment"># prolog</span> +<span id="L22" class="LineNr">22 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L23" class="LineNr">23 </span> <span class="Comment"># call ascii_length(argv[1])</span> <span id="L24" class="LineNr">24 </span> <span class="Comment"># push args</span> -<span id="L25" class="LineNr">25 </span> 53/push-EBX +<span id="L25" class="LineNr">25 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> <span id="L26" class="LineNr">26 </span> <span class="Comment"># call</span> <span id="L27" class="LineNr">27 </span> e8/call ascii_length/disp32 <span id="L28" class="LineNr">28 </span> <span class="Comment"># discard args</span> -<span id="L29" class="LineNr">29 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add 4 to ESP</span> +<span id="L29" class="LineNr">29 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> <span id="L30" class="LineNr">30 </span> <span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EAX)</span> -<span id="L32" class="LineNr">32 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L33" class="LineNr">33 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L32" class="LineNr">32 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L33" class="LineNr">33 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> <span id="L34" class="LineNr">34 </span> cd/syscall 0x80/imm8 <span id="L35" class="LineNr">35 </span> <span id="L36" class="LineNr">36 </span>ascii_length: <span class="Comment"># (s)</span> <span id="L37" class="LineNr">37 </span> <span class="Comment"># initialize s (EDX)</span> -<span id="L38" class="LineNr">38 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 <span class="Comment"># copy *(ESP+4) to EDX</span> +<span id="L38" class="LineNr">38 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 <span class="Comment"># copy *(ESP+4) to EDX</span> <span id="L39" class="LineNr">39 </span> <span class="Comment"># var result = 0 (EAX)</span> -<span id="L40" class="LineNr">40 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy 0 to EAX</span> +<span id="L40" class="LineNr">40 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to EAX</span> <span id="L41" class="LineNr">41 </span>$ascii_length_loop: <span id="L42" class="LineNr">42 </span> <span class="Comment"># var c = *s (ECX)</span> -<span id="L43" class="LineNr">43 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of ECX</span> +<span id="L43" class="LineNr">43 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of ECX</span> <span id="L44" class="LineNr">44 </span> <span class="Comment"># if c == '\0' break</span> -<span id="L45" class="LineNr">45 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare ECX with 0</span> +<span id="L45" class="LineNr">45 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare ECX</span> <span id="L46" class="LineNr">46 </span> 74/jump-if-equal $ascii_length_ret/disp8 <span id="L47" class="LineNr">47 </span> <span class="Comment"># ++s</span> -<span id="L48" class="LineNr">48 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add 1 to EDX</span> +<span id="L48" class="LineNr">48 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add to EDX</span> <span id="L49" class="LineNr">49 </span> <span class="Comment"># ++result</span> -<span id="L50" class="LineNr">50 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add 1 to EAX</span> +<span id="L50" class="LineNr">50 </span> 40/inc-EAX <span id="L51" class="LineNr">51 </span> <span class="Comment"># loop</span> <span id="L52" class="LineNr">52 </span> eb/jump $ascii_length_loop/disp8 <span id="L53" class="LineNr">53 </span>$ascii_length_ret: diff --git a/html/subx/examples/ex9.subx.html b/html/subx/examples/ex9.subx.html index 78d8323e..882f6b51 100644 --- a/html/subx/examples/ex9.subx.html +++ b/html/subx/examples/ex9.subx.html @@ -58,9 +58,9 @@ if ('onhashchange' in window) { <span id="L2" class="LineNr"> 2 </span><span class="Comment"># Show difference between ascii codes of first letter of first arg and first</span> <span id="L3" class="LineNr"> 3 </span><span class="Comment"># letter of second arg.</span> <span id="L4" class="LineNr"> 4 </span><span class="Comment">#</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># To run:</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ subx translate ex9.subx ex9</span> -<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ subx run ex9 z x</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># To run (from the subx directory):</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ subx translate examples/ex9.subx -o examples/ex9</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ subx run examples/ex9 z x</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># Expected result:</span> <span id="L9" class="LineNr"> 9 </span><span class="Comment"># $ echo $?</span> <span id="L10" class="LineNr">10 </span><span class="Comment"># 2</span> @@ -76,33 +76,32 @@ if ('onhashchange' in window) { <span id="L20" class="LineNr">20 </span><span class="Comment"># instruction effective address operand displacement immediate</span> <span id="L21" class="LineNr">21 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L22" class="LineNr">22 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> -<span id="L23" class="LineNr">23 </span> <span class="Comment"># s1 = argv[1] (EAX)</span> -<span id="L24" class="LineNr">24 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EAX</span> -<span id="L25" class="LineNr">25 </span> <span class="Comment"># s2 = argv[2] (EBX)</span> -<span id="L26" class="LineNr">26 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EBX</span> -<span id="L27" class="LineNr">27 </span> <span class="Comment"># call string_equal(s1, s2)</span> -<span id="L28" class="LineNr">28 </span> <span class="Comment"># push args</span> -<span id="L29" class="LineNr">29 </span> 50/push-EAX -<span id="L30" class="LineNr">30 </span> 53/push-EBX -<span id="L31" class="LineNr">31 </span> <span class="Comment"># call</span> -<span id="L32" class="LineNr">32 </span> e8/call ascii_difference/disp32 -<span id="L33" class="LineNr">33 </span> <span class="Comment"># discard args</span> -<span id="L34" class="LineNr">34 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> -<span id="L35" class="LineNr">35 </span> <span class="Comment"># exit(EAX)</span> -<span id="L36" class="LineNr">36 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L37" class="LineNr">37 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> -<span id="L38" class="LineNr">38 </span> cd/syscall 0x80/imm8 -<span id="L39" class="LineNr">39 </span> -<span id="L40" class="LineNr">40 </span>ascii_difference: <span class="Comment"># (s1, s2) : null-terminated ascii strings</span> -<span id="L41" class="LineNr">41 </span> <span class="Comment"># a = first letter of s1 (ECX)</span> -<span id="L42" class="LineNr">42 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EAX</span> -<span id="L43" class="LineNr">43 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to EAX</span> -<span id="L44" class="LineNr">44 </span> <span class="Comment"># b = first letter of s2 (EDX)</span> -<span id="L45" class="LineNr">45 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 4/disp8 <span class="Comment"># copy *(ESP+4) to ECX</span> -<span id="L46" class="LineNr">46 </span> 8b/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ECX to ECX</span> -<span id="L47" class="LineNr">47 </span> <span class="Comment"># a-b</span> -<span id="L48" class="LineNr">48 </span> 29/subtract 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># subtract ECX from EAX</span> -<span id="L49" class="LineNr">49 </span> c3/return +<span id="L23" class="LineNr">23 </span> <span class="Comment"># prolog</span> +<span id="L24" class="LineNr">24 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L25" class="LineNr">25 </span> <span class="Comment"># call ascii_difference(argv[1], argv[2])</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># push argv[2]</span> +<span id="L27" class="LineNr">27 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L28" class="LineNr">28 </span> <span class="Comment"># push argv[1]</span> +<span id="L29" class="LineNr">29 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> +<span id="L30" class="LineNr">30 </span> <span class="Comment"># call</span> +<span id="L31" class="LineNr">31 </span> e8/call ascii_difference/disp32 +<span id="L32" class="LineNr">32 </span> <span class="Comment"># discard args</span> +<span id="L33" class="LineNr">33 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L34" class="LineNr">34 </span> <span class="Comment"># exit(EAX)</span> +<span id="L35" class="LineNr">35 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L36" class="LineNr">36 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy to EAX</span> +<span id="L37" class="LineNr">37 </span> cd/syscall 0x80/imm8 +<span id="L38" class="LineNr">38 </span> +<span id="L39" class="LineNr">39 </span>ascii_difference: <span class="Comment"># (s1, s2) : null-terminated ascii strings</span> +<span id="L40" class="LineNr">40 </span> <span class="Comment"># a = first letter of s1 (ECX)</span> +<span id="L41" class="LineNr">41 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EAX</span> +<span id="L42" class="LineNr">42 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to EAX</span> +<span id="L43" class="LineNr">43 </span> <span class="Comment"># b = first letter of s2 (EDX)</span> +<span id="L44" class="LineNr">44 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 8/disp8 <span class="Comment"># copy *(ESP+8) to ECX</span> +<span id="L45" class="LineNr">45 </span> 8b/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ECX to ECX</span> +<span id="L46" class="LineNr">46 </span> <span class="Comment"># a-b</span> +<span id="L47" class="LineNr">47 </span> 29/subtract 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># subtract ECX from EAX</span> +<span id="L48" class="LineNr">48 </span> c3/return </pre> </body> </html> |