diff options
Diffstat (limited to 'html/subx/010---vm.cc.html')
| -rw-r--r-- | html/subx/010---vm.cc.html | 275 |
1 files changed, 147 insertions, 128 deletions
diff --git a/html/subx/010---vm.cc.html b/html/subx/010---vm.cc.html index a71135fb..e90d919b 100644 --- a/html/subx/010---vm.cc.html +++ b/html/subx/010---vm.cc.html @@ -17,7 +17,6 @@ a { color:inherit; } .cSpecial { color: #008000; } .LineNr { } .Constant { color: #008787; } -.CommentedCode { color: #8a8a8a; } .Delimiter { color: #c000c0; } .Special { color: #d70000; } .Identifier { color: #af5f00; } @@ -127,7 +126,7 @@ if ('onhashchange' in window) { <span id="L66" class="LineNr"> 66 </span> <span class="Constant">"The flag bits are read by conditional jumps.\n"</span> <span id="L67" class="LineNr"> 67 </span> <span class="Constant">"\n"</span> <span id="L68" class="LineNr"> 68 </span> <span class="Constant">"For complete details on how different instructions update the flags, consult the IA-32\n"</span> -<span id="L69" class="LineNr"> 69 </span> <span class="Constant">"manual (volume 2). There's various versions of it online, such as <a href="https://c9x.me/x86">https://c9x.me/x86</a>,\n"</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Constant">"manual (volume 2). There's various versions of it online, such as <a href="https://c9x.me/x86,">https://c9x.me/x86,</a>\n"</span> <span id="L70" class="LineNr"> 70 </span> <span class="Constant">"though of course you'll need to be careful to ignore instructions and flag registers\n"</span> <span id="L71" class="LineNr"> 71 </span> <span class="Constant">"that SubX doesn't support.\n"</span> <span id="L72" class="LineNr"> 72 </span> <span class="Constant">"\n"</span> @@ -153,7 +152,7 @@ if ('onhashchange' in window) { <span id="L92" class="LineNr"> 92 </span> <span class="Comment">/*</span><span class="Comment"> arg1 and arg2 must be signed </span><span class="Comment">*/</span> \ <span id="L93" class="LineNr"> 93 </span> <span class="Normal">int64_t</span> tmp = arg1 op arg2<span class="Delimiter">;</span> \ <span id="L94" class="LineNr"> 94 </span> arg1 = arg1 op arg2<span class="Delimiter">;</span> \ -<span id="L95" class="LineNr"> 95 </span> <a href='003trace.cc.html#L183'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << arg1 << end<span class="Delimiter">();</span> \ +<span id="L95" class="LineNr"> 95 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << arg1 << end<span class="Delimiter">();</span> \ <span id="L96" class="LineNr"> 96 </span> SF = <span class="Delimiter">(</span>arg1 < <span class="Constant">0</span><span class="Delimiter">);</span> \ <span id="L97" class="LineNr"> 97 </span> ZF = <span class="Delimiter">(</span>arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> \ <span id="L98" class="LineNr"> 98 </span> <a href='010---vm.cc.html#L81'>OF</a> = <span class="Delimiter">(</span>arg1 != tmp<span class="Delimiter">);</span> \ @@ -164,7 +163,7 @@ if ('onhashchange' in window) { <span id="L103" class="LineNr">103 </span><span class="Comment">#define BINARY_BITWISE_OP(op, arg1, arg2) { \</span> <span id="L104" class="LineNr">104 </span> <span class="Comment">/*</span><span class="Comment"> arg1 and arg2 must be unsigned </span><span class="Comment">*/</span> \ <span id="L105" class="LineNr">105 </span> arg1 = arg1 op arg2<span class="Delimiter">;</span> \ -<span id="L106" class="LineNr">106 </span> <a href='003trace.cc.html#L183'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << arg1 << end<span class="Delimiter">();</span> \ +<span id="L106" class="LineNr">106 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << arg1 << end<span class="Delimiter">();</span> \ <span id="L107" class="LineNr">107 </span> SF = <span class="Delimiter">(</span>arg1 >> <span class="Constant">31</span><span class="Delimiter">);</span> \ <span id="L108" class="LineNr">108 </span> ZF = <span class="Delimiter">(</span>arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> \ <span id="L109" class="LineNr">109 </span> <a href='010---vm.cc.html#L81'>OF</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> \ @@ -280,12 +279,12 @@ if ('onhashchange' in window) { <span id="L219" class="LineNr">219 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L220" class="LineNr">220 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='010---vm.cc.html#L128'>match</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L221" class="LineNr">221 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> -<span id="L222" class="LineNr">222 </span> <a href='003trace.cc.html#L190'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << addr << <span class="Constant">" is in two segments\n"</span> << end<span class="Delimiter">();</span> +<span id="L222" class="LineNr">222 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << addr << <span class="Constant">" is in two segments\n"</span> << end<span class="Delimiter">();</span> <span id="L223" class="LineNr">223 </span> result = &<span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">(</span>addr<span class="Delimiter">);</span> <span id="L224" class="LineNr">224 </span> <span class="Delimiter">}</span> <span id="L225" class="LineNr">225 </span> <span class="Delimiter">}</span> <span id="L226" class="LineNr">226 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result == <span class="Constant">NULL</span><span class="Delimiter">)</span> -<span id="L227" class="LineNr">227 </span> <a href='003trace.cc.html#L190'>raise</a> << <span class="Constant">"Tried to access uninitialized memory at address 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L227" class="LineNr">227 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Tried to access uninitialized memory at address 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> <span id="L228" class="LineNr">228 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L229" class="LineNr">229 </span><span class="Delimiter">}</span> <span id="L230" class="LineNr">230 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span>* <a href='010---vm.cc.html#L230'>mem_addr_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -296,13 +295,13 @@ if ('onhashchange' in window) { <span id="L235" class="LineNr">235 </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#L166'>SIZE</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L236" class="LineNr">236 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='010---vm.cc.html#L131'>match32</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L237" class="LineNr">237 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> -<span id="L238" class="LineNr">238 </span> <a href='003trace.cc.html#L190'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << addr << <span class="Constant">" is in two segments\n"</span> << end<span class="Delimiter">();</span> +<span id="L238" class="LineNr">238 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << addr << <span class="Constant">" is in two segments\n"</span> << end<span class="Delimiter">();</span> <span id="L239" class="LineNr">239 </span> result = <span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&<span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">(</span>addr<span class="Delimiter">));</span> <span id="L240" class="LineNr">240 </span> <span class="Delimiter">}</span> <span id="L241" class="LineNr">241 </span> <span class="Delimiter">}</span> <span id="L242" class="LineNr">242 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L243" class="LineNr">243 </span> <a href='003trace.cc.html#L190'>raise</a> << <span class="Constant">"Tried to access uninitialized memory at address 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> -<span id="L244" class="LineNr">244 </span> <a href='003trace.cc.html#L190'>raise</a> << <span class="Constant">"The entire 4-byte <a href='011run.cc.html#L119'>word</a> should be initialized and lie in a single segment.\n"</span> << end<span class="Delimiter">();</span> +<span id="L243" class="LineNr">243 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"Tried to access uninitialized memory at address 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L244" class="LineNr">244 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"The entire 4-byte <a href='011run.cc.html#L119'>word</a> should be initialized and lie in a single segment.\n"</span> << end<span class="Delimiter">();</span> <span id="L245" class="LineNr">245 </span> <span class="Delimiter">}</span> <span id="L246" class="LineNr">246 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L247" class="LineNr">247 </span><span class="Delimiter">}</span> @@ -343,7 +342,7 @@ if ('onhashchange' in window) { <span id="L282" class="LineNr">282 </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#L166'>SIZE</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L283" class="LineNr">283 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L180'>Mem</a></span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='010---vm.cc.html#L128'>match</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L284" class="LineNr">284 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> -<span id="L285" class="LineNr">285 </span> <a href='003trace.cc.html#L190'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << addr << <span class="Constant">" is in two segments\n"</span> << end<span class="Delimiter">();</span> +<span id="L285" class="LineNr">285 </span> <a href='003trace.cc.html#L217'>raise</a> << <span class="Constant">"address 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << addr << <span class="Constant">" is in two segments\n"</span> << end<span class="Delimiter">();</span> <span id="L286" class="LineNr">286 </span> result =<span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L287" class="LineNr">287 </span> <span class="Delimiter">}</span> <span id="L288" class="LineNr">288 </span> <span class="Delimiter">}</span> @@ -357,124 +356,144 @@ if ('onhashchange' in window) { <span id="L296" class="LineNr">296 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L296'>run_one_instruction</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L297" class="LineNr">297 </span> <span class="Normal">uint8_t</span> op=<span class="Constant">0</span><span class="Delimiter">,</span> op2=<span class="Constant">0</span><span class="Delimiter">,</span> op3=<span class="Constant">0</span><span class="Delimiter">;</span> <span id="L298" class="LineNr">298 </span> <span class="Comment">// Run One Instruction</span> -<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='003trace.cc.html#L168'>Dump_trace</a></span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L300" class="LineNr">300 </span> cerr << <span class="Constant">"registers: "</span><span class="Delimiter">;</span> -<span id="L301" class="LineNr">301 </span> <a href='010---vm.cc.html#L368'>dump_registers</a><span class="Delimiter">();</span> -<span id="L302" class="LineNr">302 </span><span class="CommentedCode">//? dump_stack(); // for debugging; not defined until later layer</span> -<span id="L303" class="LineNr">303 </span> <span class="Delimiter">}</span> -<span id="L304" class="LineNr">304 </span> <a href='003trace.cc.html#L183'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"inst: 0x"</span> << <a href='010---vm.cc.html#L413'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> -<span id="L305" class="LineNr">305 </span> op = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">();</span> -<span id="L306" class="LineNr">306 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='003trace.cc.html#L168'>Dump_trace</a></span><span class="Delimiter">)</span> cerr << <span class="Constant">"opcode: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L307" class="LineNr">307 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>op<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L308" class="LineNr">308 </span> <span class="Normal">case</span> <span class="Constant">0xf4</span>: <span class="Comment">// hlt</span> -<span id="L309" class="LineNr">309 </span> EIP = <span class="Special"><a href='010---vm.cc.html#L194'>End_of_program</a></span><span class="Delimiter">;</span> -<span id="L310" class="LineNr">310 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L311" class="LineNr">311 </span> <span class="Comment">// End Single-Byte Opcodes</span> -<span id="L312" class="LineNr">312 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: -<span id="L313" class="LineNr">313 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L314" class="LineNr">314 </span> <span class="Comment">// End Two-Byte Opcodes Starting With 0f</span> -<span id="L315" class="LineNr">315 </span> <span class="Normal">default</span>: -<span id="L316" class="LineNr">316 </span> cerr << <span class="Constant">"unrecognized second opcode after 0f: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L317" class="LineNr">317 </span> <a href='003trace.cc.html#L187'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L318" class="LineNr">318 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L319" class="LineNr">319 </span> <span class="Delimiter">}</span> -<span id="L320" class="LineNr">320 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L321" class="LineNr">321 </span> <span class="Normal">case</span> <span class="Constant">0xf2</span>: -<span id="L322" class="LineNr">322 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L323" class="LineNr">323 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f2</span> -<span id="L324" class="LineNr">324 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: -<span id="L325" class="LineNr">325 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L326" class="LineNr">326 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f2 0f</span> -<span id="L327" class="LineNr">327 </span> <span class="Normal">default</span>: -<span id="L328" class="LineNr">328 </span> cerr << <span class="Constant">"unrecognized third opcode after f2 0f: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L329" class="LineNr">329 </span> <a href='003trace.cc.html#L187'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L330" class="LineNr">330 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L331" class="LineNr">331 </span> <span class="Delimiter">}</span> -<span id="L332" class="LineNr">332 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L333" class="LineNr">333 </span> <span class="Normal">default</span>: -<span id="L334" class="LineNr">334 </span> cerr << <span class="Constant">"unrecognized second opcode after f2: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L335" class="LineNr">335 </span> <a href='003trace.cc.html#L187'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L336" class="LineNr">336 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L337" class="LineNr">337 </span> <span class="Delimiter">}</span> -<span id="L338" class="LineNr">338 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L339" class="LineNr">339 </span> <span class="Normal">case</span> <span class="Constant">0xf3</span>: -<span id="L340" class="LineNr">340 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L341" class="LineNr">341 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f3</span> -<span id="L342" class="LineNr">342 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: -<span id="L343" class="LineNr">343 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L344" class="LineNr">344 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f3 0f</span> -<span id="L345" class="LineNr">345 </span> <span class="Normal">default</span>: -<span id="L346" class="LineNr">346 </span> cerr << <span class="Constant">"unrecognized third opcode after f3 0f: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L347" class="LineNr">347 </span> <a href='003trace.cc.html#L187'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L348" class="LineNr">348 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L349" class="LineNr">349 </span> <span class="Delimiter">}</span> -<span id="L350" class="LineNr">350 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L351" class="LineNr">351 </span> <span class="Normal">default</span>: -<span id="L352" class="LineNr">352 </span> cerr << <span class="Constant">"unrecognized second opcode after f3: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L353" class="LineNr">353 </span> <a href='003trace.cc.html#L187'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L354" class="LineNr">354 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L355" class="LineNr">355 </span> <span class="Delimiter">}</span> -<span id="L356" class="LineNr">356 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L357" class="LineNr">357 </span> <span class="Normal">default</span>: -<span id="L358" class="LineNr">358 </span> cerr << <span class="Constant">"unrecognized opcode: "</span> << <a href='010---vm.cc.html#L412'>HEXBYTE</a> << <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L359" class="LineNr">359 </span> <a href='003trace.cc.html#L187'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L360" class="LineNr">360 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L361" class="LineNr">361 </span> <span class="Delimiter">}</span> -<span id="L362" class="LineNr">362 </span><span class="Delimiter">}</span> -<span id="L363" class="LineNr">363 </span> -<span id="L364" class="LineNr">364 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L364'>next</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L365" class="LineNr">365 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L202'>read_mem_u8</a><span class="Delimiter">(</span>EIP++<span class="Delimiter">);</span> -<span id="L366" class="LineNr">366 </span><span class="Delimiter">}</span> -<span id="L367" class="LineNr">367 </span> -<span id="L368" class="LineNr">368 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L368'>dump_registers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L369" class="LineNr">369 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='010---vm.cc.html#L21'>NUM_INT_REGISTERS</a><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L370" class="LineNr">370 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> cerr << <span class="Constant">"; "</span><span class="Delimiter">;</span> -<span id="L371" class="LineNr">371 </span> cerr << <span class="Constant">" "</span> << i << <span class="Constant">": "</span> << std::hex << std::setw<span class="Delimiter">(</span><span class="Constant">8</span><span class="Delimiter">)</span> << std::setfill<span class="Delimiter">(</span><span class="Constant">'_'</span><span class="Delimiter">)</span> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[i]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> -<span id="L372" class="LineNr">372 </span> <span class="Delimiter">}</span> -<span id="L373" class="LineNr">373 </span> cerr << <span class="Constant">" -- SF: "</span> << SF << <span class="Constant">"; ZF: "</span> << ZF << <span class="Constant">"; <a href='010---vm.cc.html#L81'>OF</a>: "</span> << <a href='010---vm.cc.html#L81'>OF</a> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L374" class="LineNr">374 </span><span class="Delimiter">}</span> -<span id="L375" class="LineNr">375 </span> -<span id="L376" class="LineNr">376 </span><span class="Comment">//: start tracking supported opcodes</span> -<span id="L377" class="LineNr">377 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L378" class="LineNr">378 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">;</span> -<span id="L379" class="LineNr">379 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">;</span> -<span id="L380" class="LineNr">380 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L380'>Name_f3</a></span><span class="Delimiter">;</span> -<span id="L381" class="LineNr">381 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L381'>Name_f3_0f</a></span><span class="Delimiter">;</span> -<span id="L382" class="LineNr">382 </span><span class="Delimiter">:(before "End One-time Setup")</span> -<span id="L383" class="LineNr">383 </span><a href='010---vm.cc.html#L385'>init_op_names</a><span class="Delimiter">();</span> -<span id="L384" class="LineNr">384 </span><span class="Delimiter">:(code)</span> -<span id="L385" class="LineNr">385 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L385'>init_op_names</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L386" class="LineNr">386 </span> <a href='001help.cc.html#L252'>put</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"f4"</span><span class="Delimiter">,</span> <span class="Constant">"halt (hlt)"</span><span class="Delimiter">);</span> -<span id="L387" class="LineNr">387 </span> <span class="Comment">// End Initialize Op Names</span> -<span id="L388" class="LineNr">388 </span><span class="Delimiter">}</span> -<span id="L389" class="LineNr">389 </span> -<span id="L390" class="LineNr">390 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)")</span> -<span id="L391" class="LineNr">391 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">"opcodes"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L392" class="LineNr">392 </span> cerr << <span class="Constant">"Opcodes currently supported by SubX:\n"</span><span class="Delimiter">;</span> -<span id="L393" class="LineNr">393 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L378'>Name</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L394" class="LineNr">394 </span> cerr << <span class="Constant">" "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L395" class="LineNr">395 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L379'>Name_0f</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L396" class="LineNr">396 </span> cerr << <span class="Constant">" 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L397" class="LineNr">397 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L380'>Name_f3</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L380'>Name_f3</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L398" class="LineNr">398 </span> cerr << <span class="Constant">" f3 "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L399" class="LineNr">399 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L381'>Name_f3_0f</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L381'>Name_f3_0f</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L400" class="LineNr">400 </span> cerr << <span class="Constant">" f3 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L401" class="LineNr">401 </span> cerr << <span class="Constant">"Run `subx help instructions` for details on <a href='011run.cc.html#L114'>words</a> like 'r32' and 'disp8'.\n"</span> -<span id="L402" class="LineNr">402 </span> <span class="Constant">"For complete details on these instructions, consult the IA-32 manual (volume 2).\n"</span> -<span id="L403" class="LineNr">403 </span> <span class="Constant">"There's various versions of it online, such as <a href="https://c9x.me/x86">https://c9x.me/x86</a>.\n"</span> -<span id="L404" class="LineNr">404 </span> <span class="Constant">"The mnemonics in brackets will help you locate each instruction.\n"</span><span class="Delimiter">;</span> -<span id="L405" class="LineNr">405 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L406" class="LineNr">406 </span><span class="Delimiter">}</span> -<span id="L407" class="LineNr">407 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> -<span id="L408" class="LineNr">408 </span>cerr << <span class="Constant">" opcodes\n"</span><span class="Delimiter">;</span> -<span id="L409" class="LineNr">409 </span> -<span id="L410" class="LineNr">410 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L411" class="LineNr">411 </span><span class="Comment">#include <iomanip></span> -<span id="L412" class="LineNr">412 </span><span class="Comment">#define HEXBYTE std::hex << std::setw(2) << std::setfill('0')</span> -<span id="L413" class="LineNr">413 </span><span class="Comment">#define HEXWORD std::hex << std::setw(8) << std::setfill('0')</span> -<span id="L414" class="LineNr">414 </span><span class="Comment">// ugly that iostream doesn't print uint8_t as an integer</span> -<span id="L415" class="LineNr">415 </span><span class="Comment">#define NUM(X) static_cast<int>(X)</span> -<span id="L416" class="LineNr">416 </span><span class="Comment">#include <stdint.h></span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='003trace.cc.html#L413'>Trace_file</a></span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L300" class="LineNr">300 </span> <a href='010---vm.cc.html#L367'>dump_registers</a><span class="Delimiter">();</span> +<span id="L301" class="LineNr">301 </span> <span class="Comment">// End Dump Info for Instruction</span> +<span id="L302" class="LineNr">302 </span> <span class="Delimiter">}</span> +<span id="L303" class="LineNr">303 </span> <span class="Normal">uint32_t</span> inst_start_address = EIP<span class="Delimiter">;</span> +<span id="L304" class="LineNr">304 </span> op = <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">();</span> +<span id="L305" class="LineNr">305 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << inst_start_address << <span class="Constant">" opcode: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Delimiter">(</span>op == <span class="Constant">0xe8</span> ? <span class="Constant">"/call"</span> : <span class="Constant">""</span><span class="Delimiter">)</span> << end<span class="Delimiter">();</span> +<span id="L306" class="LineNr">306 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L307" class="LineNr">307 </span> <span class="Normal">case</span> <span class="Constant">0xf4</span>: <span class="Comment">// hlt</span> +<span id="L308" class="LineNr">308 </span> EIP = <span class="Special"><a href='010---vm.cc.html#L194'>End_of_program</a></span><span class="Delimiter">;</span> +<span id="L309" class="LineNr">309 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L310" class="LineNr">310 </span> <span class="Comment">// End Single-Byte Opcodes</span> +<span id="L311" class="LineNr">311 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L312" class="LineNr">312 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L313" class="LineNr">313 </span> <span class="Comment">// End Two-Byte Opcodes Starting With 0f</span> +<span id="L314" class="LineNr">314 </span> <span class="Normal">default</span>: +<span id="L315" class="LineNr">315 </span> cerr << <span class="Constant">"unrecognized second opcode after 0f: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L316" class="LineNr">316 </span> <a href='003trace.cc.html#L402'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L317" class="LineNr">317 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L318" class="LineNr">318 </span> <span class="Delimiter">}</span> +<span id="L319" class="LineNr">319 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L320" class="LineNr">320 </span> <span class="Normal">case</span> <span class="Constant">0xf2</span>: +<span id="L321" class="LineNr">321 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L322" class="LineNr">322 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f2</span> +<span id="L323" class="LineNr">323 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L324" class="LineNr">324 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L325" class="LineNr">325 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f2 0f</span> +<span id="L326" class="LineNr">326 </span> <span class="Normal">default</span>: +<span id="L327" class="LineNr">327 </span> cerr << <span class="Constant">"unrecognized third opcode after f2 0f: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L328" class="LineNr">328 </span> <a href='003trace.cc.html#L402'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L329" class="LineNr">329 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L330" class="LineNr">330 </span> <span class="Delimiter">}</span> +<span id="L331" class="LineNr">331 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L332" class="LineNr">332 </span> <span class="Normal">default</span>: +<span id="L333" class="LineNr">333 </span> cerr << <span class="Constant">"unrecognized second opcode after f2: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L334" class="LineNr">334 </span> <a href='003trace.cc.html#L402'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L335" class="LineNr">335 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L336" class="LineNr">336 </span> <span class="Delimiter">}</span> +<span id="L337" class="LineNr">337 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L338" class="LineNr">338 </span> <span class="Normal">case</span> <span class="Constant">0xf3</span>: +<span id="L339" class="LineNr">339 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L340" class="LineNr">340 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f3</span> +<span id="L341" class="LineNr">341 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L342" class="LineNr">342 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L343" class="LineNr">343 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f3 0f</span> +<span id="L344" class="LineNr">344 </span> <span class="Normal">default</span>: +<span id="L345" class="LineNr">345 </span> cerr << <span class="Constant">"unrecognized third opcode after f3 0f: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L346" class="LineNr">346 </span> <a href='003trace.cc.html#L402'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L347" class="LineNr">347 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L348" class="LineNr">348 </span> <span class="Delimiter">}</span> +<span id="L349" class="LineNr">349 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L350" class="LineNr">350 </span> <span class="Normal">default</span>: +<span id="L351" class="LineNr">351 </span> cerr << <span class="Constant">"unrecognized second opcode after f3: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L352" class="LineNr">352 </span> <a href='003trace.cc.html#L402'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L353" class="LineNr">353 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L354" class="LineNr">354 </span> <span class="Delimiter">}</span> +<span id="L355" class="LineNr">355 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L356" class="LineNr">356 </span> <span class="Normal">default</span>: +<span id="L357" class="LineNr">357 </span> cerr << <span class="Constant">"unrecognized opcode: "</span> << <a href='010---vm.cc.html#L432'>HEXBYTE</a> << <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L358" class="LineNr">358 </span> <a href='003trace.cc.html#L402'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L359" class="LineNr">359 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L360" class="LineNr">360 </span> <span class="Delimiter">}</span> +<span id="L361" class="LineNr">361 </span><span class="Delimiter">}</span> +<span id="L362" class="LineNr">362 </span> +<span id="L363" class="LineNr">363 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010---vm.cc.html#L363'>next</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L364" class="LineNr">364 </span> <span class="Identifier">return</span> <a href='010---vm.cc.html#L202'>read_mem_u8</a><span class="Delimiter">(</span>EIP++<span class="Delimiter">);</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="Normal">void</span> <a href='010---vm.cc.html#L367'>dump_registers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L368" class="LineNr">368 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L369" class="LineNr">369 </span> out << <span class="Constant">"registers: "</span><span class="Delimiter">;</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='010---vm.cc.html#L21'>NUM_INT_REGISTERS</a><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L371" class="LineNr">371 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">"; "</span><span class="Delimiter">;</span> +<span id="L372" class="LineNr">372 </span> out << <span class="Constant">" "</span> << i << <span class="Constant">": "</span> << std::hex << std::setw<span class="Delimiter">(</span><span class="Constant">8</span><span class="Delimiter">)</span> << std::setfill<span class="Delimiter">(</span><span class="Constant">'_'</span><span class="Delimiter">)</span> << <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[i]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L373" class="LineNr">373 </span> <span class="Delimiter">}</span> +<span id="L374" class="LineNr">374 </span> out << <span class="Constant">" -- SF: "</span> << SF << <span class="Constant">"; ZF: "</span> << ZF << <span class="Constant">"; <a href='010---vm.cc.html#L81'>OF</a>: "</span> << <a href='010---vm.cc.html#L81'>OF</a><span class="Delimiter">;</span> +<span id="L375" class="LineNr">375 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << out<span class="Delimiter">.</span>str<span class="Delimiter">()</span> << end<span class="Delimiter">();</span> +<span id="L376" class="LineNr">376 </span><span class="Delimiter">}</span> +<span id="L377" class="LineNr">377 </span> +<span id="L378" class="LineNr">378 </span><span class="Comment">//: start tracking supported opcodes</span> +<span id="L379" class="LineNr">379 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L380" class="LineNr">380 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L380'>Name</a></span><span class="Delimiter">;</span> +<span id="L381" class="LineNr">381 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L381'>Name_0f</a></span><span class="Delimiter">;</span> +<span id="L382" class="LineNr">382 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L382'>Name_f3</a></span><span class="Delimiter">;</span> +<span id="L383" class="LineNr">383 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <span class="Special"><a href='010---vm.cc.html#L383'>Name_f3_0f</a></span><span class="Delimiter">;</span> +<span id="L384" class="LineNr">384 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L385" class="LineNr">385 </span><a href='010---vm.cc.html#L387'>init_op_names</a><span class="Delimiter">();</span> +<span id="L386" class="LineNr">386 </span><span class="Delimiter">:(code)</span> +<span id="L387" class="LineNr">387 </span><span class="Normal">void</span> <a href='010---vm.cc.html#L387'>init_op_names</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L388" class="LineNr">388 </span> <a href='001help.cc.html#L252'>put</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L380'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"f4"</span><span class="Delimiter">,</span> <span class="Constant">"halt (hlt)"</span><span class="Delimiter">);</span> +<span id="L389" class="LineNr">389 </span> <span class="Comment">// End Initialize Op Names</span> +<span id="L390" class="LineNr">390 </span><span class="Delimiter">}</span> +<span id="L391" class="LineNr">391 </span> +<span id="L392" class="LineNr">392 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)")</span> +<span id="L393" class="LineNr">393 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">"opcodes"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L394" class="LineNr">394 </span> cerr << <span class="Constant">"Opcodes currently supported by SubX:\n"</span><span class="Delimiter">;</span> +<span id="L395" class="LineNr">395 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L380'>Name</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L380'>Name</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L396" class="LineNr">396 </span> cerr << <span class="Constant">" "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L397" class="LineNr">397 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L381'>Name_0f</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L381'>Name_0f</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L398" class="LineNr">398 </span> cerr << <span class="Constant">" 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L399" class="LineNr">399 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L382'>Name_f3</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L382'>Name_f3</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L400" class="LineNr">400 </span> cerr << <span class="Constant">" f3 "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L401" class="LineNr">401 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <span class="Special"><a href='010---vm.cc.html#L383'>Name_f3_0f</a></span><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special"><a href='010---vm.cc.html#L383'>Name_f3_0f</a></span><span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L402" class="LineNr">402 </span> cerr << <span class="Constant">" f3 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L403" class="LineNr">403 </span> cerr << <span class="Constant">"Run `subx help instructions` for details on <a href='011run.cc.html#L114'>words</a> like 'r32' and 'disp8'.\n"</span> +<span id="L404" class="LineNr">404 </span> <span class="Constant">"For complete details on these instructions, consult the IA-32 manual (volume 2).\n"</span> +<span id="L405" class="LineNr">405 </span> <span class="Constant">"There's various versions of it online, such as <a href="https://c9x.me/x86.">https://c9x.me/x86.</a>\n"</span> +<span id="L406" class="LineNr">406 </span> <span class="Constant">"The mnemonics in brackets will help you locate each instruction.\n"</span><span class="Delimiter">;</span> +<span id="L407" class="LineNr">407 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L408" class="LineNr">408 </span><span class="Delimiter">}</span> +<span id="L409" class="LineNr">409 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> +<span id="L410" class="LineNr">410 </span>cerr << <span class="Constant">" opcodes\n"</span><span class="Delimiter">;</span> +<span id="L411" class="LineNr">411 </span> +<span id="L412" class="LineNr">412 </span><span class="Comment">//: Helpers for managing trace depths</span> +<span id="L413" class="LineNr">413 </span><span class="Comment">//:</span> +<span id="L414" class="LineNr">414 </span><span class="Comment">//: We're going to use trace depths primarily to segment code running at</span> +<span id="L415" class="LineNr">415 </span><span class="Comment">//: different frames of the call stack. This will make it easy for the trace</span> +<span id="L416" class="LineNr">416 </span><span class="Comment">//: browser to collapse over entire calls.</span> +<span id="L417" class="LineNr">417 </span><span class="Comment">//:</span> +<span id="L418" class="LineNr">418 </span><span class="Comment">//: Errors will be at depth 0.</span> +<span id="L419" class="LineNr">419 </span><span class="Comment">//: Warnings will be at depth 1.</span> +<span id="L420" class="LineNr">420 </span><span class="Comment">//: SubX instructions will occupy depth 2 and up to Max_depth, organized by</span> +<span id="L421" class="LineNr">421 </span><span class="Comment">//: stack frames. Each instruction's internal details will be one level deeper</span> +<span id="L422" class="LineNr">422 </span><span class="Comment">//: than its 'main' depth. So 'call' instruction details will be at the same</span> +<span id="L423" class="LineNr">423 </span><span class="Comment">//: depth as the instructions of the function it calls.</span> +<span id="L424" class="LineNr">424 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L425" class="LineNr">425 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> <span class="Special"><a href='010---vm.cc.html#L425'>Initial_callstack_depth</a></span> = <span class="Constant">2</span><span class="Delimiter">;</span> +<span id="L426" class="LineNr">426 </span><span class="Normal">int</span> <span class="Special">Callstack_depth</span> = <span class="Special"><a href='010---vm.cc.html#L425'>Initial_callstack_depth</a></span><span class="Delimiter">;</span> +<span id="L427" class="LineNr">427 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L428" class="LineNr">428 </span><span class="Special">Callstack_depth</span> = <span class="Special"><a href='010---vm.cc.html#L425'>Initial_callstack_depth</a></span><span class="Delimiter">;</span> +<span id="L429" class="LineNr">429 </span> +<span id="L430" class="LineNr">430 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L431" class="LineNr">431 </span><span class="Comment">#include <iomanip></span> +<span id="L432" class="LineNr">432 </span><span class="Comment">#define HEXBYTE std::hex << std::setw(2) << std::setfill('0')</span> +<span id="L433" class="LineNr">433 </span><span class="Comment">#define HEXWORD std::hex << std::setw(8) << std::setfill('0')</span> +<span id="L434" class="LineNr">434 </span><span class="Comment">// ugly that iostream doesn't print uint8_t as an integer</span> +<span id="L435" class="LineNr">435 </span><span class="Comment">#define NUM(X) static_cast<int>(X)</span> +<span id="L436" class="LineNr">436 </span><span class="Comment">#include <stdint.h></span> </pre> </body> </html> |