diff options
Diffstat (limited to 'html/subx/031check_operands.cc.html')
| -rw-r--r-- | html/subx/031check_operands.cc.html | 658 |
1 files changed, 332 insertions, 326 deletions
diff --git a/html/subx/031check_operands.cc.html b/html/subx/031check_operands.cc.html index e6302677..2cab24d2 100644 --- a/html/subx/031check_operands.cc.html +++ b/html/subx/031check_operands.cc.html @@ -89,18 +89,18 @@ if ('onhashchange' in window) { <span id="L23" class="LineNr"> 23 </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="L24" class="LineNr"> 24 </span> <a href='011run.cc.html#L123'>word</a> op = <a href='031check_operands.cc.html#L36'>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="L25" class="LineNr"> 25 </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="L26" class="LineNr"> 26 </span> <a href='031check_operands.cc.html#L519'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <a href='031check_operands.cc.html#L525'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L27" class="LineNr"> 27 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L28" class="LineNr"> 28 </span> <span class="Delimiter">}</span> <span id="L29" class="LineNr"> 29 </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="L30" class="LineNr"> 30 </span> <a href='031check_operands.cc.html#L487'>check_operands_f3</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L30" class="LineNr"> 30 </span> <a href='031check_operands.cc.html#L493'>check_operands_f3</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L31" class="LineNr"> 31 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L32" class="LineNr"> 32 </span> <span class="Delimiter">}</span> <span id="L33" class="LineNr"> 33 </span> check_operands<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<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><a href='011run.cc.html#L123'>word</a> <a href='031check_operands.cc.html#L36'>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="L37" class="LineNr"> 37 </span> op<span class="Delimiter">.</span>data = <a href='031check_operands.cc.html#L552'>tolower</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span>data<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> +<span id="L37" class="LineNr"> 37 </span> op<span class="Delimiter">.</span>data = <a href='031check_operands.cc.html#L558'>tolower</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span>data<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> <span id="L38" class="LineNr"> 38 </span> <span class="Comment">// opcodes can't be negative</span> <span id="L39" class="LineNr"> 39 </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="L40" class="LineNr"> 40 </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> @@ -278,356 +278,362 @@ if ('onhashchange' in window) { <span id="L212" class="LineNr">212 </span> <span class="Comment">// pop</span> <span id="L213" class="LineNr">213 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> <span id="L214" class="LineNr">214 </span> -<span id="L215" class="LineNr">215 </span> <span class="SalientComment">//// Class O: op, ModR/M and subop (not r32)</span> +<span id="L215" class="LineNr">215 </span> <span class="SalientComment">//// Class N: op, ModR/M and subop (not r32)</span> <span id="L216" class="LineNr">216 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> <span id="L217" class="LineNr">217 </span> <span class="Comment">// 0 0 0 |0 0 1 1</span> -<span id="L218" class="LineNr">218 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">0x03</span><span class="Delimiter">);</span> <span class="Comment">// test/not/mul/div</span> -<span id="L219" class="LineNr">219 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"ff"</span><span class="Delimiter">,</span> <span class="Constant">0x03</span><span class="Delimiter">);</span> <span class="Comment">// jump/push/call</span> -<span id="L220" class="LineNr">220 </span> -<span id="L221" class="LineNr">221 </span> <span class="SalientComment">//// Class N: op, ModR/M and imm32</span> -<span id="L222" class="LineNr">222 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> -<span id="L223" class="LineNr">223 </span> <span class="Comment">// 1 0 0 |0 0 0 1</span> -<span id="L224" class="LineNr">224 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"c7"</span><span class="Delimiter">,</span> <span class="Constant">0x41</span><span class="Delimiter">);</span> <span class="Comment">// copy</span> -<span id="L225" class="LineNr">225 </span> -<span id="L226" class="LineNr">226 </span> <span class="SalientComment">//// Class P: op, ModR/M, subop (not r32) and imm32</span> -<span id="L227" class="LineNr">227 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> -<span id="L228" class="LineNr">228 </span> <span class="Comment">// 1 0 0 |0 0 1 1</span> -<span id="L229" class="LineNr">229 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"81"</span><span class="Delimiter">,</span> <span class="Constant">0x43</span><span class="Delimiter">);</span> <span class="Comment">// combine</span> -<span id="L230" class="LineNr">230 </span> -<span id="L231" class="LineNr">231 </span> <span class="Comment">// End Init Permitted Operands</span> -<span id="L232" class="LineNr">232 </span><span class="Delimiter">}</span> -<span id="L233" class="LineNr">233 </span> -<span id="L234" class="LineNr">234 </span><span class="Delimiter">:(code)</span> -<span id="L235" class="LineNr">235 </span><span class="Comment">#define HAS(bitvector, bit) ((bitvector) & (1 << (bit)))</span> -<span id="L236" class="LineNr">236 </span><span class="Comment">#define SET(bitvector, bit) ((bitvector) | (1 << (bit)))</span> -<span id="L237" class="LineNr">237 </span><span class="Comment">#define CLEAR(bitvector, bit) ((bitvector) & (~(1 << (bit))))</span> -<span id="L238" class="LineNr">238 </span> -<span id="L239" class="LineNr">239 </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="L240" class="LineNr">240 </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="L241" class="LineNr">241 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> -<span id="L242" class="LineNr">242 </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#L59'>MODRM</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L243" class="LineNr">243 </span> <a href='031check_operands.cc.html#L337'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> -<span id="L244" class="LineNr">244 </span> <a href='031check_operands.cc.html#L364'>compare_bitvector_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> expected_bitvector<span class="Delimiter">,</span> op<span class="Delimiter">);</span> -<span id="L245" class="LineNr">245 </span> <span class="Delimiter">}</span> -<span id="L246" class="LineNr">246 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L247" class="LineNr">247 </span> <a href='031check_operands.cc.html#L253'>compare_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> expected_bitvector<span class="Delimiter">,</span> op<span class="Delimiter">);</span> -<span id="L248" class="LineNr">248 </span> <span class="Delimiter">}</span> -<span id="L249" class="LineNr">249 </span><span class="Delimiter">}</span> -<span id="L250" class="LineNr">250 </span> -<span id="L251" class="LineNr">251 </span><span class="Comment">//: Many instructions can be checked just by comparing bitvectors.</span> -<span id="L252" class="LineNr">252 </span> -<span id="L253" class="LineNr">253 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L253'>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="L254" class="LineNr">254 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L288'>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="L255" class="LineNr">255 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L279'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> -<span id="L256" class="LineNr">256 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>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="L257" class="LineNr">257 </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> -<span id="L258" class="LineNr">258 </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='031check_operands.cc.html#L66'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L259" class="LineNr">259 </span><span class="CommentedCode">//? cerr << "comparing " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> -<span id="L260" class="LineNr">260 </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="L261" class="LineNr">261 </span> <span class="Normal">const</span> string& optype = <span class="Special"><a href='031check_operands.cc.html#L69'>Operand_type_name</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L262" class="LineNr">262 </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="L263" class="LineNr">263 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L264" class="LineNr">264 </span> <span class="Normal">else</span> -<span id="L265" class="LineNr">265 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L266" class="LineNr">266 </span> <span class="Comment">// continue giving all errors for a single instruction</span> -<span id="L267" class="LineNr">267 </span> <span class="Delimiter">}</span> -<span id="L268" class="LineNr">268 </span> <span class="Comment">// ignore settings in any unused bits</span> -<span id="L269" class="LineNr">269 </span><span class="Delimiter">}</span> -<span id="L270" class="LineNr">270 </span> -<span id="L271" class="LineNr">271 </span>string <a href='031check_operands.cc.html#L271'>maybe_name</a><span class="Delimiter">(</span><span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L272" class="LineNr">272 </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="L273" class="LineNr">273 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><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="L274" class="LineNr">274 </span> <span class="Comment">// strip stuff in parens from the name</span> -<span id="L275" class="LineNr">275 </span> <span class="Normal">const</span> string& s = get<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> -<span id="L276" class="LineNr">276 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">" ("</span><span class="Delimiter">))</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> -<span id="L277" class="LineNr">277 </span><span class="Delimiter">}</span> -<span id="L278" class="LineNr">278 </span> -<span id="L279" class="LineNr">279 </span><span class="Normal">uint32_t</span> <a href='031check_operands.cc.html#L279'>compute_operand_bitvector</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L280" class="LineNr">280 </span> <span class="Normal">uint32_t</span> bitvector = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L281" class="LineNr">281 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip op</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>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="L282" class="LineNr">282 </span> bitvector = bitvector | <a href='031check_operands.cc.html#L305'>bitvector_for_operand</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>i<span class="Delimiter">));</span> -<span id="L283" class="LineNr">283 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <a href='031check_operands.cc.html#L90'>INVALID_OPERANDS</a><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> -<span id="L284" class="LineNr">284 </span> <span class="Delimiter">}</span> -<span id="L285" class="LineNr">285 </span> <span class="Identifier">return</span> bitvector<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="Normal">bool</span> <a href='031check_operands.cc.html#L288'>has_operands</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L289" class="LineNr">289 </span> <span class="Identifier">return</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> > <a href='031check_operands.cc.html#L292'>first_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> -<span id="L290" class="LineNr">290 </span><span class="Delimiter">}</span> -<span id="L291" class="LineNr">291 </span> -<span id="L292" class="LineNr">292 </span><span class="Normal">int</span> <a href='031check_operands.cc.html#L292'>first_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L293" class="LineNr">293 </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="L294" class="LineNr">294 </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="L295" class="LineNr">295 </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="L296" class="LineNr">296 </span> <span class="Identifier">return</span> <span class="Constant">3</span><span class="Delimiter">;</span> -<span id="L297" class="LineNr">297 </span> <span class="Normal">else</span> -<span id="L298" class="LineNr">298 </span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> -<span id="L299" class="LineNr">299 </span> <span class="Delimiter">}</span> -<span id="L300" class="LineNr">300 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L301" class="LineNr">301 </span><span class="Delimiter">}</span> -<span id="L302" class="LineNr">302 </span> -<span id="L303" class="LineNr">303 </span><span class="Comment">// Scan the metadata of 'w' and return the bit corresponding to any operand type.</span> -<span id="L304" class="LineNr">304 </span><span class="Comment">// Also raise an error if metadata contains multiple operand types.</span> -<span id="L305" class="LineNr">305 </span><span class="Normal">uint32_t</span> <a href='031check_operands.cc.html#L305'>bitvector_for_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L306" class="LineNr">306 </span> <span class="Normal">uint32_t</span> bv = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L307" class="LineNr">307 </span> <span class="Normal">bool</span> found =<span class="Constant"> false</span><span class="Delimiter">;</span> -<span id="L308" class="LineNr">308 </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="L309" class="LineNr">309 </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="L310" class="LineNr">310 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L70'>Operand_type</a></span><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="L311" class="LineNr">311 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>found<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L312" class="LineNr">312 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one\n"</span> << end<span class="Delimiter">();</span> -<span id="L313" class="LineNr">313 </span> <span class="Identifier">return</span> <a href='031check_operands.cc.html#L90'>INVALID_OPERANDS</a><span class="Delimiter">;</span> -<span id="L314" class="LineNr">314 </span> <span class="Delimiter">}</span> -<span id="L315" class="LineNr">315 </span> bv = <span class="Delimiter">(</span><span class="Constant">1</span> << get<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L70'>Operand_type</a></span><span class="Delimiter">,</span> curr<span class="Delimiter">));</span> -<span id="L316" class="LineNr">316 </span> found =<span class="Constant"> true</span><span class="Delimiter">;</span> -<span id="L317" class="LineNr">317 </span> <span class="Delimiter">}</span> -<span id="L318" class="LineNr">318 </span> <span class="Identifier">return</span> bv<span class="Delimiter">;</span> -<span id="L319" class="LineNr">319 </span><span class="Delimiter">}</span> -<span id="L320" class="LineNr">320 </span> -<span id="L321" class="LineNr">321 </span><span class="Delimiter">:(scenario conflicting_operand_type)</span> -<span id="L322" class="LineNr">322 </span><span class="Special">% Hide_errors = true;</span> -<span id="L323" class="LineNr">323 </span>== <span class="Constant">0x1</span> -<span id="L324" class="LineNr">324 </span>cd/software-interrupt <span class="Constant">80</span>/imm8/imm32 -<span id="L325" class="LineNr">325 </span><span class="traceContains">+error: '80/imm8/imm32' has conflicting operand types; it should have only one</span> +<span id="L218" class="LineNr">218 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"d3"</span><span class="Delimiter">,</span> <span class="Constant">0x03</span><span class="Delimiter">);</span> <span class="Comment">// shift</span> +<span id="L219" class="LineNr">219 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">0x03</span><span class="Delimiter">);</span> <span class="Comment">// test/not/mul/div</span> +<span id="L220" class="LineNr">220 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"ff"</span><span class="Delimiter">,</span> <span class="Constant">0x03</span><span class="Delimiter">);</span> <span class="Comment">// jump/push/call</span> +<span id="L221" class="LineNr">221 </span> +<span id="L222" class="LineNr">222 </span> <span class="SalientComment">//// Class O: op, ModR/M, subop (not r32) and imm8</span> +<span id="L223" class="LineNr">223 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L224" class="LineNr">224 </span> <span class="Comment">// 0 1 0 |0 0 1 1</span> +<span id="L225" class="LineNr">225 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"c1"</span><span class="Delimiter">,</span> <span class="Constant">0x23</span><span class="Delimiter">);</span> <span class="Comment">// combine</span> +<span id="L226" class="LineNr">226 </span> +<span id="L227" class="LineNr">227 </span> <span class="SalientComment">//// Class P: op, ModR/M and imm32</span> +<span id="L228" class="LineNr">228 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L229" class="LineNr">229 </span> <span class="Comment">// 1 0 0 |0 0 0 1</span> +<span id="L230" class="LineNr">230 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"c7"</span><span class="Delimiter">,</span> <span class="Constant">0x41</span><span class="Delimiter">);</span> <span class="Comment">// copy</span> +<span id="L231" class="LineNr">231 </span> +<span id="L232" class="LineNr">232 </span> <span class="SalientComment">//// Class Q: op, ModR/M, subop (not r32) and imm32</span> +<span id="L233" class="LineNr">233 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L234" class="LineNr">234 </span> <span class="Comment">// 1 0 0 |0 0 1 1</span> +<span id="L235" class="LineNr">235 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> <span class="Constant">"81"</span><span class="Delimiter">,</span> <span class="Constant">0x43</span><span class="Delimiter">);</span> <span class="Comment">// combine</span> +<span id="L236" class="LineNr">236 </span> +<span id="L237" class="LineNr">237 </span> <span class="Comment">// End Init Permitted Operands</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">:(code)</span> +<span id="L241" class="LineNr">241 </span><span class="Comment">#define HAS(bitvector, bit) ((bitvector) & (1 << (bit)))</span> +<span id="L242" class="LineNr">242 </span><span class="Comment">#define SET(bitvector, bit) ((bitvector) | (1 << (bit)))</span> +<span id="L243" class="LineNr">243 </span><span class="Comment">#define CLEAR(bitvector, bit) ((bitvector) & (~(1 << (bit))))</span> +<span id="L244" class="LineNr">244 </span> +<span id="L245" class="LineNr">245 </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="L246" class="LineNr">246 </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="L247" class="LineNr">247 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L89'>Permitted_operands</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L248" class="LineNr">248 </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#L59'>MODRM</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L249" class="LineNr">249 </span> <a href='031check_operands.cc.html#L343'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L250" class="LineNr">250 </span> <a href='031check_operands.cc.html#L370'>compare_bitvector_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> expected_bitvector<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L251" class="LineNr">251 </span> <span class="Delimiter">}</span> +<span id="L252" class="LineNr">252 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L253" class="LineNr">253 </span> <a href='031check_operands.cc.html#L259'>compare_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> expected_bitvector<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L254" class="LineNr">254 </span> <span class="Delimiter">}</span> +<span id="L255" class="LineNr">255 </span><span class="Delimiter">}</span> +<span id="L256" class="LineNr">256 </span> +<span id="L257" class="LineNr">257 </span><span class="Comment">//: Many instructions can be checked just by comparing bitvectors.</span> +<span id="L258" class="LineNr">258 </span> +<span id="L259" class="LineNr">259 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L259'>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="L260" class="LineNr">260 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L294'>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">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L285'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L262" class="LineNr">262 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>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="L263" class="LineNr">263 </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> +<span id="L264" class="LineNr">264 </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='031check_operands.cc.html#L66'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L265" class="LineNr">265 </span><span class="CommentedCode">//? cerr << "comparing " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> +<span id="L266" class="LineNr">266 </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="L267" class="LineNr">267 </span> <span class="Normal">const</span> string& optype = <span class="Special"><a href='031check_operands.cc.html#L69'>Operand_type_name</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L268" class="LineNr">268 </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="L269" class="LineNr">269 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L270" class="LineNr">270 </span> <span class="Normal">else</span> +<span id="L271" class="LineNr">271 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L272" class="LineNr">272 </span> <span class="Comment">// continue giving all errors for a single instruction</span> +<span id="L273" class="LineNr">273 </span> <span class="Delimiter">}</span> +<span id="L274" class="LineNr">274 </span> <span class="Comment">// ignore settings in any unused bits</span> +<span id="L275" class="LineNr">275 </span><span class="Delimiter">}</span> +<span id="L276" class="LineNr">276 </span> +<span id="L277" class="LineNr">277 </span>string <a href='031check_operands.cc.html#L277'>maybe_name</a><span class="Delimiter">(</span><span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L278" class="LineNr">278 </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="L279" class="LineNr">279 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><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="L280" class="LineNr">280 </span> <span class="Comment">// strip stuff in parens from the name</span> +<span id="L281" class="LineNr">281 </span> <span class="Normal">const</span> string& s = get<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L282" class="LineNr">282 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">" ("</span><span class="Delimiter">))</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> +<span id="L283" class="LineNr">283 </span><span class="Delimiter">}</span> +<span id="L284" class="LineNr">284 </span> +<span id="L285" class="LineNr">285 </span><span class="Normal">uint32_t</span> <a href='031check_operands.cc.html#L285'>compute_operand_bitvector</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L286" class="LineNr">286 </span> <span class="Normal">uint32_t</span> bitvector = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L287" class="LineNr">287 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip op</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>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="L288" class="LineNr">288 </span> bitvector = bitvector | <a href='031check_operands.cc.html#L311'>bitvector_for_operand</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>i<span class="Delimiter">));</span> +<span id="L289" class="LineNr">289 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <a href='031check_operands.cc.html#L90'>INVALID_OPERANDS</a><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> +<span id="L290" class="LineNr">290 </span> <span class="Delimiter">}</span> +<span id="L291" class="LineNr">291 </span> <span class="Identifier">return</span> bitvector<span class="Delimiter">;</span> +<span id="L292" class="LineNr">292 </span><span class="Delimiter">}</span> +<span id="L293" class="LineNr">293 </span> +<span id="L294" class="LineNr">294 </span><span class="Normal">bool</span> <a href='031check_operands.cc.html#L294'>has_operands</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L295" class="LineNr">295 </span> <span class="Identifier">return</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> > <a href='031check_operands.cc.html#L298'>first_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L296" class="LineNr">296 </span><span class="Delimiter">}</span> +<span id="L297" class="LineNr">297 </span> +<span id="L298" class="LineNr">298 </span><span class="Normal">int</span> <a href='031check_operands.cc.html#L298'>first_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</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">"0f"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">2</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">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="L301" class="LineNr">301 </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="L302" class="LineNr">302 </span> <span class="Identifier">return</span> <span class="Constant">3</span><span class="Delimiter">;</span> +<span id="L303" class="LineNr">303 </span> <span class="Normal">else</span> +<span id="L304" class="LineNr">304 </span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> +<span id="L305" class="LineNr">305 </span> <span class="Delimiter">}</span> +<span id="L306" class="LineNr">306 </span> <span class="Identifier">return</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 id="L309" class="LineNr">309 </span><span class="Comment">// Scan the metadata of 'w' and return the bit corresponding to any operand type.</span> +<span id="L310" class="LineNr">310 </span><span class="Comment">// Also raise an error if metadata contains multiple operand types.</span> +<span id="L311" class="LineNr">311 </span><span class="Normal">uint32_t</span> <a href='031check_operands.cc.html#L311'>bitvector_for_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L312" class="LineNr">312 </span> <span class="Normal">uint32_t</span> bv = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L313" class="LineNr">313 </span> <span class="Normal">bool</span> found =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L314" class="LineNr">314 </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="L315" class="LineNr">315 </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="L316" class="LineNr">316 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L70'>Operand_type</a></span><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="L317" class="LineNr">317 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>found<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L318" class="LineNr">318 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one\n"</span> << end<span class="Delimiter">();</span> +<span id="L319" class="LineNr">319 </span> <span class="Identifier">return</span> <a href='031check_operands.cc.html#L90'>INVALID_OPERANDS</a><span class="Delimiter">;</span> +<span id="L320" class="LineNr">320 </span> <span class="Delimiter">}</span> +<span id="L321" class="LineNr">321 </span> bv = <span class="Delimiter">(</span><span class="Constant">1</span> << get<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L70'>Operand_type</a></span><span class="Delimiter">,</span> curr<span class="Delimiter">));</span> +<span id="L322" class="LineNr">322 </span> found =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L323" class="LineNr">323 </span> <span class="Delimiter">}</span> +<span id="L324" class="LineNr">324 </span> <span class="Identifier">return</span> bv<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="Comment">//: Instructions computing effective addresses have more complex rules, so</span> -<span id="L328" class="LineNr">328 </span><span class="Comment">//: we'll hard-code a common set of instruction-decoding rules.</span> -<span id="L329" class="LineNr">329 </span> -<span id="L330" class="LineNr">330 </span><span class="Delimiter">:(scenario check_missing_mod_operand)</span> -<span id="L331" class="LineNr">331 </span><span class="Special">% Hide_errors = true;</span> -<span id="L332" class="LineNr">332 </span>== <span class="Constant">0x1</span> -<span id="L333" class="LineNr">333 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/rm32/ebx <span class="Constant">1</span>/imm32 -<span id="L334" class="LineNr">334 </span><span class="traceContains">+error: '81 0/add/subop 3/rm32/ebx 1/imm32' (combine rm32 with imm32 based on subop): missing mod operand</span> +<span id="L327" class="LineNr">327 </span><span class="Delimiter">:(scenario conflicting_operand_type)</span> +<span id="L328" class="LineNr">328 </span><span class="Special">% Hide_errors = true;</span> +<span id="L329" class="LineNr">329 </span>== <span class="Constant">0x1</span> +<span id="L330" class="LineNr">330 </span>cd/software-interrupt <span class="Constant">80</span>/imm8/imm32 +<span id="L331" class="LineNr">331 </span><span class="traceContains">+error: '80/imm8/imm32' has conflicting operand types; it should have only one</span> +<span id="L332" class="LineNr">332 </span> +<span id="L333" class="LineNr">333 </span><span class="Comment">//: Instructions computing effective addresses have more complex rules, so</span> +<span id="L334" class="LineNr">334 </span><span class="Comment">//: we'll hard-code a common set of instruction-decoding rules.</span> <span id="L335" class="LineNr">335 </span> -<span id="L336" class="LineNr">336 </span><span class="Delimiter">:(code)</span> -<span id="L337" class="LineNr">337 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L337'>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="L338" class="LineNr">338 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>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="L339" class="LineNr">339 </span> <a href='031check_operands.cc.html#L398'>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="L340" class="LineNr">340 </span> <a href='031check_operands.cc.html#L398'>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="L341" class="LineNr">341 </span> <span class="Comment">// no check for r32; some instructions don't use it; just assume it's 0 if missing</span> -<span id="L342" class="LineNr">342 </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="L343" class="LineNr">343 </span> <a href='031check_operands.cc.html#L398'>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="L344" class="LineNr">344 </span> <a href='031check_operands.cc.html#L403'>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="L345" class="LineNr">345 </span> <span class="Delimiter">}</span> -<span id="L346" class="LineNr">346 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L347" class="LineNr">347 </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="L348" class="LineNr">348 </span> <span class="Comment">// SIB byte checks</span> -<span id="L349" class="LineNr">349 </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="L350" class="LineNr">350 </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="L351" class="LineNr">351 </span> <a href='031check_operands.cc.html#L398'>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="L352" class="LineNr">352 </span> <a href='031check_operands.cc.html#L398'>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> -<span id="L353" class="LineNr">353 </span> <span class="Delimiter">}</span> -<span id="L354" class="LineNr">354 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L355" class="LineNr">355 </span> <a href='031check_operands.cc.html#L403'>check_operand_metadata_absent</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 class="Constant">"direct mode"</span><span class="Delimiter">);</span> -<span id="L356" class="LineNr">356 </span> <a href='031check_operands.cc.html#L403'>check_operand_metadata_absent</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="Constant">"direct mode"</span><span class="Delimiter">);</span> -<span id="L357" class="LineNr">357 </span> <span class="Delimiter">}</span> -<span id="L358" class="LineNr">358 </span> <span class="Comment">// no check for scale; 0 (2**0 = 1) by default</span> -<span id="L359" class="LineNr">359 </span><span class="Delimiter">}</span> -<span id="L360" class="LineNr">360 </span> -<span id="L361" class="LineNr">361 </span><span class="Comment">// same as compare_bitvector, with a couple of exceptions for modrm-based instructions</span> -<span id="L362" class="LineNr">362 </span><span class="Comment">// exception 1: ignore modrm bit since we already checked it above</span> -<span id="L363" class="LineNr">363 </span><span class="Comment">// exception 2: modrm instructions can use a displacement on occasion</span> -<span id="L364" class="LineNr">364 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L364'>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="L365" class="LineNr">365 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L288'>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="L366" class="LineNr">366 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L279'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> -<span id="L367" class="LineNr">367 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>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="L368" class="LineNr">368 </span> expected = CLEAR<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L59'>MODRM</a><span class="Delimiter">);</span> <span class="Comment">// exception 1</span> -<span id="L369" class="LineNr">369 </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> -<span id="L370" class="LineNr">370 </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='031check_operands.cc.html#L66'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L371" class="LineNr">371 </span><span class="CommentedCode">//? cerr << "comparing for modrm " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> -<span id="L372" class="LineNr">372 </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="L373" class="LineNr">373 </span> <span class="Normal">const</span> string& optype = <span class="Special"><a href='031check_operands.cc.html#L69'>Operand_type_name</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L374" class="LineNr">374 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <a href='031check_operands.cc.html#L61'>DISP8</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L375" class="LineNr">375 </span> <span class="Normal">int32_t</span> mod = <a href='011run.cc.html#L362'>parse_int</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="L376" class="LineNr">376 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod != <span class="Constant">1</span><span class="Delimiter">)</span> -<span id="L377" class="LineNr">377 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L378" class="LineNr">378 </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="Delimiter">}</span> -<span id="L380" class="LineNr">380 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <a href='031check_operands.cc.html#L63'>DISP32</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L336" class="LineNr">336 </span><span class="Delimiter">:(scenario check_missing_mod_operand)</span> +<span id="L337" class="LineNr">337 </span><span class="Special">% Hide_errors = true;</span> +<span id="L338" class="LineNr">338 </span>== <span class="Constant">0x1</span> +<span id="L339" class="LineNr">339 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/rm32/ebx <span class="Constant">1</span>/imm32 +<span id="L340" class="LineNr">340 </span><span class="traceContains">+error: '81 0/add/subop 3/rm32/ebx 1/imm32' (combine rm32 with imm32 based on subop): missing mod operand</span> +<span id="L341" class="LineNr">341 </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='031check_operands.cc.html#L343'>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="L344" class="LineNr">344 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>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="L345" class="LineNr">345 </span> <a href='031check_operands.cc.html#L404'>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="L346" class="LineNr">346 </span> <a href='031check_operands.cc.html#L404'>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="L347" class="LineNr">347 </span> <span class="Comment">// no check for r32; some instructions don't use it; just assume it's 0 if missing</span> +<span id="L348" class="LineNr">348 </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="L349" class="LineNr">349 </span> <a href='031check_operands.cc.html#L404'>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="L350" class="LineNr">350 </span> <a href='031check_operands.cc.html#L409'>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="L351" class="LineNr">351 </span> <span class="Delimiter">}</span> +<span id="L352" class="LineNr">352 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L353" class="LineNr">353 </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="L354" class="LineNr">354 </span> <span class="Comment">// SIB byte checks</span> +<span id="L355" class="LineNr">355 </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="L356" class="LineNr">356 </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="L357" class="LineNr">357 </span> <a href='031check_operands.cc.html#L404'>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="L358" class="LineNr">358 </span> <a href='031check_operands.cc.html#L404'>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> +<span id="L359" class="LineNr">359 </span> <span class="Delimiter">}</span> +<span id="L360" class="LineNr">360 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L361" class="LineNr">361 </span> <a href='031check_operands.cc.html#L409'>check_operand_metadata_absent</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 class="Constant">"direct mode"</span><span class="Delimiter">);</span> +<span id="L362" class="LineNr">362 </span> <a href='031check_operands.cc.html#L409'>check_operand_metadata_absent</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="Constant">"direct mode"</span><span class="Delimiter">);</span> +<span id="L363" class="LineNr">363 </span> <span class="Delimiter">}</span> +<span id="L364" class="LineNr">364 </span> <span class="Comment">// no check for scale; 0 (2**0 = 1) by default</span> +<span id="L365" class="LineNr">365 </span><span class="Delimiter">}</span> +<span id="L366" class="LineNr">366 </span> +<span id="L367" class="LineNr">367 </span><span class="Comment">// same as compare_bitvector, with a couple of exceptions for modrm-based instructions</span> +<span id="L368" class="LineNr">368 </span><span class="Comment">// exception 1: ignore modrm bit since we already checked it above</span> +<span id="L369" class="LineNr">369 </span><span class="Comment">// exception 2: modrm instructions can use a displacement on occasion</span> +<span id="L370" class="LineNr">370 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L370'>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="L371" class="LineNr">371 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L294'>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="L372" class="LineNr">372 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L285'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L373" class="LineNr">373 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>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="L374" class="LineNr">374 </span> expected = CLEAR<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <a href='031check_operands.cc.html#L59'>MODRM</a><span class="Delimiter">);</span> <span class="Comment">// exception 1</span> +<span id="L375" class="LineNr">375 </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> +<span id="L376" class="LineNr">376 </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='031check_operands.cc.html#L66'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L377" class="LineNr">377 </span><span class="CommentedCode">//? cerr << "comparing for modrm " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> +<span id="L378" class="LineNr">378 </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="L379" class="LineNr">379 </span> <span class="Normal">const</span> string& optype = <span class="Special"><a href='031check_operands.cc.html#L69'>Operand_type_name</a></span><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>i == <a href='031check_operands.cc.html#L61'>DISP8</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L381" class="LineNr">381 </span> <span class="Normal">int32_t</span> mod = <a href='011run.cc.html#L362'>parse_int</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="L382" class="LineNr">382 </span> <span class="Normal">int32_t</span> rm32 = <a href='011run.cc.html#L362'>parse_int</a><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="Delimiter">);</span> -<span id="L383" class="LineNr">383 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod == <span class="Constant">0</span> && rm32 == <span class="Constant">5</span><span class="Delimiter">)</span> -<span id="L384" class="LineNr">384 </span> <span class="Delimiter">;</span> <span class="Comment">// ok: special-case for loading address from disp32</span> -<span id="L385" class="LineNr">385 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod != <span class="Constant">2</span><span class="Delimiter">)</span> -<span id="L386" class="LineNr">386 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L387" class="LineNr">387 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// exception 2</span> -<span id="L388" class="LineNr">388 </span> <span class="Delimiter">}</span> -<span id="L389" class="LineNr">389 </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="L390" class="LineNr">390 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L391" class="LineNr">391 </span> <span class="Normal">else</span> -<span id="L392" class="LineNr">392 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L393" class="LineNr">393 </span> <span class="Comment">// continue giving all errors for a single instruction</span> -<span id="L394" class="LineNr">394 </span> <span class="Delimiter">}</span> -<span id="L395" class="LineNr">395 </span> <span class="Comment">// ignore settings in any unused bits</span> -<span id="L396" class="LineNr">396 </span><span class="Delimiter">}</span> -<span id="L397" class="LineNr">397 </span> -<span id="L398" class="LineNr">398 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L398'>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="L399" class="LineNr">399 </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="L400" class="LineNr">400 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << type << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L401" class="LineNr">401 </span><span class="Delimiter">}</span> -<span id="L402" class="LineNr">402 </span> -<span id="L403" class="LineNr">403 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L403'>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="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> type<span class="Delimiter">))</span> -<span id="L405" class="LineNr">405 </span> <a href='003trace.cc.html#L210'>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#L271'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << type << <span class="Constant">" operand ("</span> << msg << <span class="Constant">")\n"</span> << end<span class="Delimiter">();</span> -<span id="L406" class="LineNr">406 </span><span class="Delimiter">}</span> -<span id="L407" class="LineNr">407 </span> -<span id="L408" class="LineNr">408 </span><span class="Delimiter">:(scenarios transform)</span> -<span id="L409" class="LineNr">409 </span><span class="Delimiter">:(scenario modrm_with_displacement)</span> -<span id="L410" class="LineNr">410 </span><span class="Special">% Reg[EAX].u = 0x1;</span> -<span id="L411" class="LineNr">411 </span>== <span class="Constant">0x1</span> -<span id="L412" class="LineNr">412 </span><span class="Comment"># just avoid null pointer</span> -<span id="L413" class="LineNr">413 </span>8b/copy <span class="Constant">1</span>/mod/lookup+disp8 <span class="Constant">0</span>/rm32/EAX <span class="Constant">2</span>/r32/EDX <span class="Constant">4</span>/disp8 <span class="Comment"># copy *(EAX+4) to EDX</span> -<span id="L414" class="LineNr">414 </span>$error: <span class="Constant">0</span> -<span id="L415" class="LineNr">415 </span><span class="Delimiter">:(scenarios run)</span> -<span id="L416" class="LineNr">416 </span> -<span id="L417" class="LineNr">417 </span><span class="Delimiter">:(scenario conflicting_operands_in_modrm_instruction)</span> -<span id="L418" class="LineNr">418 </span><span class="Special">% Hide_errors = true;</span> -<span id="L419" class="LineNr">419 </span>== <span class="Constant">0x1</span> -<span id="L420" class="LineNr">420 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">0</span>/mod <span class="Constant">3</span>/mod -<span id="L421" class="LineNr">421 </span><span class="traceContains">+error: '01/add 0/mod 3/mod' has conflicting mod operands</span> +<span id="L382" class="LineNr">382 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod != <span class="Constant">1</span><span class="Delimiter">)</span> +<span id="L383" class="LineNr">383 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L384" class="LineNr">384 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// exception 2</span> +<span id="L385" class="LineNr">385 </span> <span class="Delimiter">}</span> +<span id="L386" class="LineNr">386 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <a href='031check_operands.cc.html#L63'>DISP32</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L387" class="LineNr">387 </span> <span class="Normal">int32_t</span> mod = <a href='011run.cc.html#L362'>parse_int</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="L388" class="LineNr">388 </span> <span class="Normal">int32_t</span> rm32 = <a href='011run.cc.html#L362'>parse_int</a><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="Delimiter">);</span> +<span id="L389" class="LineNr">389 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod == <span class="Constant">0</span> && rm32 == <span class="Constant">5</span><span class="Delimiter">)</span> +<span id="L390" class="LineNr">390 </span> <span class="Delimiter">;</span> <span class="Comment">// ok: special-case for loading address from disp32</span> +<span id="L391" class="LineNr">391 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod != <span class="Constant">2</span><span class="Delimiter">)</span> +<span id="L392" class="LineNr">392 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L393" class="LineNr">393 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// exception 2</span> +<span id="L394" class="LineNr">394 </span> <span class="Delimiter">}</span> +<span id="L395" class="LineNr">395 </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="L396" class="LineNr">396 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L397" class="LineNr">397 </span> <span class="Normal">else</span> +<span id="L398" class="LineNr">398 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L399" class="LineNr">399 </span> <span class="Comment">// continue giving all errors for a single instruction</span> +<span id="L400" class="LineNr">400 </span> <span class="Delimiter">}</span> +<span id="L401" class="LineNr">401 </span> <span class="Comment">// ignore settings in any unused bits</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">void</span> <a href='031check_operands.cc.html#L404'>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="L405" class="LineNr">405 </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="L406" class="LineNr">406 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << type << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L407" class="LineNr">407 </span><span class="Delimiter">}</span> +<span id="L408" class="LineNr">408 </span> +<span id="L409" class="LineNr">409 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L409'>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="L410" class="LineNr">410 </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="L411" class="LineNr">411 </span> <a href='003trace.cc.html#L210'>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#L277'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << type << <span class="Constant">" operand ("</span> << msg << <span class="Constant">")\n"</span> << end<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="Delimiter">:(scenarios transform)</span> +<span id="L415" class="LineNr">415 </span><span class="Delimiter">:(scenario modrm_with_displacement)</span> +<span id="L416" class="LineNr">416 </span><span class="Special">% Reg[EAX].u = 0x1;</span> +<span id="L417" class="LineNr">417 </span>== <span class="Constant">0x1</span> +<span id="L418" class="LineNr">418 </span><span class="Comment"># just avoid null pointer</span> +<span id="L419" class="LineNr">419 </span>8b/copy <span class="Constant">1</span>/mod/lookup+disp8 <span class="Constant">0</span>/rm32/EAX <span class="Constant">2</span>/r32/EDX <span class="Constant">4</span>/disp8 <span class="Comment"># copy *(EAX+4) to EDX</span> +<span id="L420" class="LineNr">420 </span>$error: <span class="Constant">0</span> +<span id="L421" class="LineNr">421 </span><span class="Delimiter">:(scenarios run)</span> <span id="L422" class="LineNr">422 </span> -<span id="L423" class="LineNr">423 </span><span class="Delimiter">:(scenario conflicting_operand_type_modrm)</span> +<span id="L423" class="LineNr">423 </span><span class="Delimiter">:(scenario conflicting_operands_in_modrm_instruction)</span> <span id="L424" class="LineNr">424 </span><span class="Special">% Hide_errors = true;</span> <span id="L425" class="LineNr">425 </span>== <span class="Constant">0x1</span> -<span id="L426" class="LineNr">426 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">0</span>/mod <span class="Constant">3</span>/rm32/r32 -<span id="L427" class="LineNr">427 </span><span class="traceContains">+error: '3/rm32/r32' has conflicting operand types; it should have only one</span> +<span id="L426" class="LineNr">426 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">0</span>/mod <span class="Constant">3</span>/mod +<span id="L427" class="LineNr">427 </span><span class="traceContains">+error: '01/add 0/mod 3/mod' has conflicting mod operands</span> <span id="L428" class="LineNr">428 </span> -<span id="L429" class="LineNr">429 </span><span class="Delimiter">:(scenario check_missing_rm32_operand)</span> +<span id="L429" class="LineNr">429 </span><span class="Delimiter">:(scenario conflicting_operand_type_modrm)</span> <span id="L430" class="LineNr">430 </span><span class="Special">% Hide_errors = true;</span> <span id="L431" class="LineNr">431 </span>== <span class="Constant">0x1</span> -<span id="L432" class="LineNr">432 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod <span class="Constant">1</span>/imm32 -<span id="L433" class="LineNr">433 </span><span class="traceContains">+error: '81 0/add/subop 0/mod 1/imm32' (combine rm32 with imm32 based on subop): missing rm32 operand</span> +<span id="L432" class="LineNr">432 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">0</span>/mod <span class="Constant">3</span>/rm32/r32 +<span id="L433" class="LineNr">433 </span><span class="traceContains">+error: '3/rm32/r32' has conflicting operand types; it should have only one</span> <span id="L434" class="LineNr">434 </span> -<span id="L435" class="LineNr">435 </span><span class="Delimiter">:(scenario check_missing_subop_operand)</span> +<span id="L435" class="LineNr">435 </span><span class="Delimiter">:(scenario check_missing_rm32_operand)</span> <span id="L436" class="LineNr">436 </span><span class="Special">% Hide_errors = true;</span> <span id="L437" class="LineNr">437 </span>== <span class="Constant">0x1</span> -<span id="L438" class="LineNr">438 </span><span class="Constant">81</span> <span class="Constant">0</span>/mod <span class="Constant">3</span>/rm32/ebx <span class="Constant">1</span>/imm32 -<span id="L439" class="LineNr">439 </span><span class="traceContains">+error: '81 0/mod 3/rm32/ebx 1/imm32' (combine rm32 with imm32 based on subop): missing subop operand</span> +<span id="L438" class="LineNr">438 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod <span class="Constant">1</span>/imm32 +<span id="L439" class="LineNr">439 </span><span class="traceContains">+error: '81 0/add/subop 0/mod 1/imm32' (combine rm32 with imm32 based on subop): missing rm32 operand</span> <span id="L440" class="LineNr">440 </span> -<span id="L441" class="LineNr">441 </span><span class="Delimiter">:(scenario check_missing_base_operand)</span> +<span id="L441" class="LineNr">441 </span><span class="Delimiter">:(scenario check_missing_subop_operand)</span> <span id="L442" class="LineNr">442 </span><span class="Special">% Hide_errors = true;</span> <span id="L443" class="LineNr">443 </span>== <span class="Constant">0x1</span> -<span id="L444" class="LineNr">444 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">1</span>/imm32 -<span id="L445" class="LineNr">445 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 1/imm32' (combine rm32 with imm32 based on subop): missing base operand</span> +<span id="L444" class="LineNr">444 </span><span class="Constant">81</span> <span class="Constant">0</span>/mod <span class="Constant">3</span>/rm32/ebx <span class="Constant">1</span>/imm32 +<span id="L445" class="LineNr">445 </span><span class="traceContains">+error: '81 0/mod 3/rm32/ebx 1/imm32' (combine rm32 with imm32 based on subop): missing subop operand</span> <span id="L446" class="LineNr">446 </span> -<span id="L447" class="LineNr">447 </span><span class="Delimiter">:(scenario check_missing_index_operand)</span> +<span id="L447" class="LineNr">447 </span><span class="Delimiter">:(scenario check_missing_base_operand)</span> <span id="L448" class="LineNr">448 </span><span class="Special">% Hide_errors = true;</span> <span id="L449" class="LineNr">449 </span>== <span class="Constant">0x1</span> -<span id="L450" class="LineNr">450 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">0</span>/base <span class="Constant">1</span>/imm32 -<span id="L451" class="LineNr">451 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 0/base 1/imm32' (combine rm32 with imm32 based on subop): missing index operand</span> +<span id="L450" class="LineNr">450 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">1</span>/imm32 +<span id="L451" class="LineNr">451 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 1/imm32' (combine rm32 with imm32 based on subop): missing base operand</span> <span id="L452" class="LineNr">452 </span> -<span id="L453" class="LineNr">453 </span><span class="Delimiter">:(scenario check_missing_base_operand_2)</span> +<span id="L453" class="LineNr">453 </span><span class="Delimiter">:(scenario check_missing_index_operand)</span> <span id="L454" class="LineNr">454 </span><span class="Special">% Hide_errors = true;</span> <span id="L455" class="LineNr">455 </span>== <span class="Constant">0x1</span> -<span id="L456" class="LineNr">456 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">2</span>/index <span class="Constant">3</span>/scale <span class="Constant">1</span>/imm32 -<span id="L457" class="LineNr">457 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 2/index 3/scale 1/imm32' (combine rm32 with imm32 based on subop): missing base operand</span> +<span id="L456" class="LineNr">456 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">0</span>/base <span class="Constant">1</span>/imm32 +<span id="L457" class="LineNr">457 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 0/base 1/imm32' (combine rm32 with imm32 based on subop): missing index operand</span> <span id="L458" class="LineNr">458 </span> -<span id="L459" class="LineNr">459 </span><span class="Delimiter">:(scenario check_extra_displacement)</span> +<span id="L459" class="LineNr">459 </span><span class="Delimiter">:(scenario check_missing_base_operand_2)</span> <span id="L460" class="LineNr">460 </span><span class="Special">% Hide_errors = true;</span> <span id="L461" class="LineNr">461 </span>== <span class="Constant">0x1</span> -<span id="L462" class="LineNr">462 </span><span class="Constant">89</span>/copy <span class="Constant">0</span>/mod/indirect <span class="Constant">0</span>/rm32/EAX <span class="Constant">1</span>/r32/ECX <span class="Constant">4</span>/disp8 -<span id="L463" class="LineNr">463 </span><span class="traceContains">+error: '89/copy 0/mod/indirect 0/rm32/EAX 1/r32/ECX 4/disp8' (copy r32 to rm32): unexpected disp8 operand</span> +<span id="L462" class="LineNr">462 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">2</span>/index <span class="Constant">3</span>/scale <span class="Constant">1</span>/imm32 +<span id="L463" class="LineNr">463 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 2/index 3/scale 1/imm32' (combine rm32 with imm32 based on subop): missing base operand</span> <span id="L464" class="LineNr">464 </span> -<span id="L465" class="LineNr">465 </span><span class="Delimiter">:(scenario check_base_operand_not_needed_in_direct_mode)</span> -<span id="L466" class="LineNr">466 </span>== <span class="Constant">0x1</span> -<span id="L467" class="LineNr">467 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">1</span>/imm32 -<span id="L468" class="LineNr">468 </span>$error: <span class="Constant">0</span> -<span id="L469" class="LineNr">469 </span> -<span id="L470" class="LineNr">470 </span><span class="SalientComment">//:: similarly handle multi-byte opcodes</span> -<span id="L471" class="LineNr">471 </span> -<span id="L472" class="LineNr">472 </span><span class="Delimiter">:(code)</span> -<span id="L473" class="LineNr">473 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L519'>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="L474" class="LineNr">474 </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="L475" class="LineNr">475 </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="L476" class="LineNr">476 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"opcode '0f' requires a second opcode\n"</span> << end<span class="Delimiter">();</span> -<span id="L477" class="LineNr">477 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L478" class="LineNr">478 </span> <span class="Delimiter">}</span> -<span id="L479" class="LineNr">479 </span> <a href='011run.cc.html#L123'>word</a> op = <a href='031check_operands.cc.html#L36'>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="L480" class="LineNr">480 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L481" class="LineNr">481 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"unknown 2-byte opcode '0f "</span> << op<span class="Delimiter">.</span>data << <span class="Constant">"'\n"</span> << end<span class="Delimiter">();</span> -<span id="L482" class="LineNr">482 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L483" class="LineNr">483 </span> <span class="Delimiter">}</span> -<span id="L484" class="LineNr">484 </span> <a href='031check_operands.cc.html#L519'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> -<span id="L485" class="LineNr">485 </span><span class="Delimiter">}</span> -<span id="L486" class="LineNr">486 </span> -<span id="L487" class="LineNr">487 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L487'>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="L488" class="LineNr">488 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"no supported opcodes starting with f3\n"</span> << end<span class="Delimiter">();</span> -<span id="L489" class="LineNr">489 </span><span class="Delimiter">}</span> -<span id="L490" class="LineNr">490 </span> -<span id="L491" class="LineNr">491 </span><span class="Delimiter">:(scenario check_missing_disp32_operand)</span> -<span id="L492" class="LineNr">492 </span><span class="Special">% Hide_errors = true;</span> -<span id="L493" class="LineNr">493 </span>== <span class="Constant">0x1</span> -<span id="L494" class="LineNr">494 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L495" class="LineNr">495 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L496" class="LineNr">496 </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="L497" class="LineNr">497 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="Comment"># jmp if ZF to ??</span> -<span id="L498" class="LineNr">498 </span><span class="traceContains">+error: '0f 84' (jump disp32 bytes away if equal, if ZF is set): missing disp32 operand</span> -<span id="L499" class="LineNr">499 </span> -<span id="L500" class="LineNr">500 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L501" class="LineNr">501 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">bitvector</span><span class="Comment">*/</span><span class="Normal">uint8_t</span>> <span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">;</span> -<span id="L502" class="LineNr">502 </span><span class="Delimiter">:(before "End Init Permitted Operands")</span> -<span id="L503" class="LineNr">503 </span><span class="SalientComment">//// Class D: just op and disp32</span> -<span id="L504" class="LineNr">504 </span><span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> -<span id="L505" class="LineNr">505 </span><span class="Comment">// 0 0 1 |0 0 0 0</span> -<span id="L506" class="LineNr">506 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"84"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> -<span id="L507" class="LineNr">507 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"85"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> -<span id="L508" class="LineNr">508 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8c"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> -<span id="L509" class="LineNr">509 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> -<span id="L510" class="LineNr">510 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8e"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> -<span id="L511" class="LineNr">511 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> -<span id="L512" class="LineNr">512 </span> -<span id="L513" class="LineNr">513 </span><span class="SalientComment">//// Class M: using ModR/M byte</span> -<span id="L514" class="LineNr">514 </span><span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> -<span id="L515" class="LineNr">515 </span><span class="Comment">// 0 0 0 |0 0 0 1</span> -<span id="L516" class="LineNr">516 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"af"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> -<span id="L517" class="LineNr">517 </span> -<span id="L518" class="LineNr">518 </span><span class="Delimiter">:(code)</span> -<span id="L519" class="LineNr">519 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L519'>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="L520" class="LineNr">520 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L501'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> -<span id="L521" class="LineNr">521 </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#L59'>MODRM</a><span class="Delimiter">))</span> -<span id="L522" class="LineNr">522 </span> <a href='031check_operands.cc.html#L337'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> -<span id="L523" class="LineNr">523 </span> <a href='031check_operands.cc.html#L526'>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#L59'>MODRM</a><span class="Delimiter">),</span> op<span class="Delimiter">);</span> -<span id="L524" class="LineNr">524 </span><span class="Delimiter">}</span> -<span id="L525" class="LineNr">525 </span> -<span id="L526" class="LineNr">526 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L526'>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="L527" class="LineNr">527 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L288'>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="L528" class="LineNr">528 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L279'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> -<span id="L529" class="LineNr">529 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>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="L530" class="LineNr">530 </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> -<span id="L531" class="LineNr">531 </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='031check_operands.cc.html#L66'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L532" class="LineNr">532 </span><span class="CommentedCode">//? cerr << "comparing " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> -<span id="L533" class="LineNr">533 </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="L534" class="LineNr">534 </span> <span class="Normal">const</span> string& optype = <span class="Special"><a href='031check_operands.cc.html#L69'>Operand_type_name</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> -<span id="L535" class="LineNr">535 </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="L536" class="LineNr">536 </span> <a href='003trace.cc.html#L210'>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#L544'>maybe_name_0f</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L537" class="LineNr">537 </span> <span class="Normal">else</span> -<span id="L538" class="LineNr">538 </span> <a href='003trace.cc.html#L210'>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#L544'>maybe_name_0f</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> -<span id="L539" class="LineNr">539 </span> <span class="Comment">// continue giving all errors for a single instruction</span> -<span id="L540" class="LineNr">540 </span> <span class="Delimiter">}</span> -<span id="L541" class="LineNr">541 </span> <span class="Comment">// ignore settings in any unused bits</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>string <a href='031check_operands.cc.html#L544'>maybe_name_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L545" class="LineNr">545 </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="L546" class="LineNr">546 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><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="L547" class="LineNr">547 </span> <span class="Comment">// strip stuff in parens from the name</span> -<span id="L548" class="LineNr">548 </span> <span class="Normal">const</span> string& s = get<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> -<span id="L549" class="LineNr">549 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">" ("</span><span class="Delimiter">))</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> -<span id="L550" class="LineNr">550 </span><span class="Delimiter">}</span> -<span id="L551" class="LineNr">551 </span> -<span id="L552" class="LineNr">552 </span>string <a href='031check_operands.cc.html#L552'>tolower</a><span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">char</span>* s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L553" class="LineNr">553 </span> ostringstream out<span class="Delimiter">;</span> -<span id="L554" class="LineNr">554 </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> *s<span class="Delimiter">;</span> ++s<span class="Delimiter">)</span> -<span id="L555" class="LineNr">555 </span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span><a href='031check_operands.cc.html#L552'>tolower</a><span class="Delimiter">(</span>*s<span class="Delimiter">));</span> -<span id="L556" class="LineNr">556 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L557" class="LineNr">557 </span><span class="Delimiter">}</span> -<span id="L558" class="LineNr">558 </span> -<span id="L559" class="LineNr">559 </span><span class="Comment">#undef HAS</span> -<span id="L560" class="LineNr">560 </span><span class="Comment">#undef SET</span> -<span id="L561" class="LineNr">561 </span><span class="Comment">#undef CLEAR</span> -<span id="L562" class="LineNr">562 </span> -<span id="L563" class="LineNr">563 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L564" class="LineNr">564 </span><span class="Comment">#include<cctype></span> +<span id="L465" class="LineNr">465 </span><span class="Delimiter">:(scenario check_extra_displacement)</span> +<span id="L466" class="LineNr">466 </span><span class="Special">% Hide_errors = true;</span> +<span id="L467" class="LineNr">467 </span>== <span class="Constant">0x1</span> +<span id="L468" class="LineNr">468 </span><span class="Constant">89</span>/copy <span class="Constant">0</span>/mod/indirect <span class="Constant">0</span>/rm32/EAX <span class="Constant">1</span>/r32/ECX <span class="Constant">4</span>/disp8 +<span id="L469" class="LineNr">469 </span><span class="traceContains">+error: '89/copy 0/mod/indirect 0/rm32/EAX 1/r32/ECX 4/disp8' (copy r32 to rm32): unexpected disp8 operand</span> +<span id="L470" class="LineNr">470 </span> +<span id="L471" class="LineNr">471 </span><span class="Delimiter">:(scenario check_base_operand_not_needed_in_direct_mode)</span> +<span id="L472" class="LineNr">472 </span>== <span class="Constant">0x1</span> +<span id="L473" class="LineNr">473 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">1</span>/imm32 +<span id="L474" class="LineNr">474 </span>$error: <span class="Constant">0</span> +<span id="L475" class="LineNr">475 </span> +<span id="L476" class="LineNr">476 </span><span class="SalientComment">//:: similarly handle multi-byte opcodes</span> +<span id="L477" class="LineNr">477 </span> +<span id="L478" class="LineNr">478 </span><span class="Delimiter">:(code)</span> +<span id="L479" class="LineNr">479 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L525'>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="L480" class="LineNr">480 </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="L481" class="LineNr">481 </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="L482" class="LineNr">482 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"opcode '0f' requires a second opcode\n"</span> << end<span class="Delimiter">();</span> +<span id="L483" class="LineNr">483 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L484" class="LineNr">484 </span> <span class="Delimiter">}</span> +<span id="L485" class="LineNr">485 </span> <a href='011run.cc.html#L123'>word</a> op = <a href='031check_operands.cc.html#L36'>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="L486" class="LineNr">486 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L487" class="LineNr">487 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"unknown 2-byte opcode '0f "</span> << op<span class="Delimiter">.</span>data << <span class="Constant">"'\n"</span> << end<span class="Delimiter">();</span> +<span id="L488" class="LineNr">488 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L489" class="LineNr">489 </span> <span class="Delimiter">}</span> +<span id="L490" class="LineNr">490 </span> <a href='031check_operands.cc.html#L525'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L491" class="LineNr">491 </span><span class="Delimiter">}</span> +<span id="L492" class="LineNr">492 </span> +<span id="L493" class="LineNr">493 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L493'>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="L494" class="LineNr">494 </span> <a href='003trace.cc.html#L210'>raise</a> << <span class="Constant">"no supported opcodes starting with f3\n"</span> << end<span class="Delimiter">();</span> +<span id="L495" class="LineNr">495 </span><span class="Delimiter">}</span> +<span id="L496" class="LineNr">496 </span> +<span id="L497" class="LineNr">497 </span><span class="Delimiter">:(scenario check_missing_disp32_operand)</span> +<span id="L498" class="LineNr">498 </span><span class="Special">% Hide_errors = true;</span> +<span id="L499" class="LineNr">499 </span>== <span class="Constant">0x1</span> +<span id="L500" class="LineNr">500 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L501" class="LineNr">501 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L502" class="LineNr">502 </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="L503" class="LineNr">503 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="Comment"># jmp if ZF to ??</span> +<span id="L504" class="LineNr">504 </span><span class="traceContains">+error: '0f 84' (jump disp32 bytes away if equal, if ZF is set): missing disp32 operand</span> +<span id="L505" class="LineNr">505 </span> +<span id="L506" class="LineNr">506 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L507" class="LineNr">507 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">bitvector</span><span class="Comment">*/</span><span class="Normal">uint8_t</span>> <span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">;</span> +<span id="L508" class="LineNr">508 </span><span class="Delimiter">:(before "End Init Permitted Operands")</span> +<span id="L509" class="LineNr">509 </span><span class="SalientComment">//// Class D: just op and disp32</span> +<span id="L510" class="LineNr">510 </span><span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L511" class="LineNr">511 </span><span class="Comment">// 0 0 1 |0 0 0 0</span> +<span id="L512" class="LineNr">512 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"84"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> +<span id="L513" class="LineNr">513 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"85"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> +<span id="L514" class="LineNr">514 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8c"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> +<span id="L515" class="LineNr">515 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> +<span id="L516" class="LineNr">516 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8e"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> +<span id="L517" class="LineNr">517 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> +<span id="L518" class="LineNr">518 </span> +<span id="L519" class="LineNr">519 </span><span class="SalientComment">//// Class M: using ModR/M byte</span> +<span id="L520" class="LineNr">520 </span><span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L521" class="LineNr">521 </span><span class="Comment">// 0 0 0 |0 0 0 1</span> +<span id="L522" class="LineNr">522 </span><a href='001help.cc.html#L253'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> <span class="Constant">"af"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L523" class="LineNr">523 </span> +<span id="L524" class="LineNr">524 </span><span class="Delimiter">:(code)</span> +<span id="L525" class="LineNr">525 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L525'>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="L526" class="LineNr">526 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><span class="Special"><a href='031check_operands.cc.html#L507'>Permitted_operands_0f</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L527" class="LineNr">527 </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#L59'>MODRM</a><span class="Delimiter">))</span> +<span id="L528" class="LineNr">528 </span> <a href='031check_operands.cc.html#L343'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L529" class="LineNr">529 </span> <a href='031check_operands.cc.html#L532'>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#L59'>MODRM</a><span class="Delimiter">),</span> op<span class="Delimiter">);</span> +<span id="L530" class="LineNr">530 </span><span class="Delimiter">}</span> +<span id="L531" class="LineNr">531 </span> +<span id="L532" class="LineNr">532 </span><span class="Normal">void</span> <a href='031check_operands.cc.html#L532'>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="L533" class="LineNr">533 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='030---operands.cc.html#L379'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='031check_operands.cc.html#L294'>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="L534" class="LineNr">534 </span> <span class="Normal">uint8_t</span> bitvector = <a href='031check_operands.cc.html#L285'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L535" class="LineNr">535 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L224'>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="L536" class="LineNr">536 </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> +<span id="L537" class="LineNr">537 </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='031check_operands.cc.html#L66'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L538" class="LineNr">538 </span><span class="CommentedCode">//? cerr << "comparing " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> +<span id="L539" class="LineNr">539 </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="L540" class="LineNr">540 </span> <span class="Normal">const</span> string& optype = <span class="Special"><a href='031check_operands.cc.html#L69'>Operand_type_name</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L541" class="LineNr">541 </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="L542" class="LineNr">542 </span> <a href='003trace.cc.html#L210'>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#L550'>maybe_name_0f</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L543" class="LineNr">543 </span> <span class="Normal">else</span> +<span id="L544" class="LineNr">544 </span> <a href='003trace.cc.html#L210'>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#L550'>maybe_name_0f</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand\n"</span> << end<span class="Delimiter">();</span> +<span id="L545" class="LineNr">545 </span> <span class="Comment">// continue giving all errors for a single instruction</span> +<span id="L546" class="LineNr">546 </span> <span class="Delimiter">}</span> +<span id="L547" class="LineNr">547 </span> <span class="Comment">// ignore settings in any unused bits</span> +<span id="L548" class="LineNr">548 </span><span class="Delimiter">}</span> +<span id="L549" class="LineNr">549 </span> +<span id="L550" class="LineNr">550 </span>string <a href='031check_operands.cc.html#L550'>maybe_name_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L551" class="LineNr">551 </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="L552" class="LineNr">552 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><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="L553" class="LineNr">553 </span> <span class="Comment">// strip stuff in parens from the name</span> +<span id="L554" class="LineNr">554 </span> <span class="Normal">const</span> string& s = get<span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">,</span> op<span class="Delimiter">.</span>data<span class="Delimiter">);</span> +<span id="L555" class="LineNr">555 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">" ("</span><span class="Delimiter">))</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> +<span id="L556" class="LineNr">556 </span><span class="Delimiter">}</span> +<span id="L557" class="LineNr">557 </span> +<span id="L558" class="LineNr">558 </span>string <a href='031check_operands.cc.html#L558'>tolower</a><span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">char</span>* s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L559" class="LineNr">559 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L560" class="LineNr">560 </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> *s<span class="Delimiter">;</span> ++s<span class="Delimiter">)</span> +<span id="L561" class="LineNr">561 </span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span><a href='031check_operands.cc.html#L558'>tolower</a><span class="Delimiter">(</span>*s<span class="Delimiter">));</span> +<span id="L562" class="LineNr">562 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L563" class="LineNr">563 </span><span class="Delimiter">}</span> +<span id="L564" class="LineNr">564 </span> +<span id="L565" class="LineNr">565 </span><span class="Comment">#undef HAS</span> +<span id="L566" class="LineNr">566 </span><span class="Comment">#undef SET</span> +<span id="L567" class="LineNr">567 </span><span class="Comment">#undef CLEAR</span> +<span id="L568" class="LineNr">568 </span> +<span id="L569" class="LineNr">569 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L570" class="LineNr">570 </span><span class="Comment">#include<cctype></span> </pre> </body> </html> |