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Diffstat (limited to 'html/subx/010---vm.cc.html')
-rw-r--r--html/subx/010---vm.cc.html275
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">&quot;The flag bits are read by conditional jumps.\n&quot;</span>
 <span id="L67" class="LineNr"> 67 </span>  <span class="Constant">&quot;\n&quot;</span>
 <span id="L68" class="LineNr"> 68 </span>  <span class="Constant">&quot;For complete details on how different instructions update the flags, consult the IA-32\n&quot;</span>
-<span id="L69" class="LineNr"> 69 </span>  <span class="Constant">&quot;manual (volume 2). There's various versions of it online, such as <a href="https://c9x.me/x86">https://c9x.me/x86</a>,\n&quot;</span>
+<span id="L69" class="LineNr"> 69 </span>  <span class="Constant">&quot;manual (volume 2). There's various versions of it online, such as <a href="https://c9x.me/x86,">https://c9x.me/x86,</a>\n&quot;</span>
 <span id="L70" class="LineNr"> 70 </span>  <span class="Constant">&quot;though of course you'll need to be careful to ignore instructions and flag registers\n&quot;</span>
 <span id="L71" class="LineNr"> 71 </span>  <span class="Constant">&quot;that SubX doesn't support.\n&quot;</span>
 <span id="L72" class="LineNr"> 72 </span>  <span class="Constant">&quot;\n&quot;</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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;storing 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; arg1 &lt;&lt; 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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;storing 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; arg1 &lt;&lt; end<span class="Delimiter">();</span> \
 <span id="L96" class="LineNr"> 96 </span>  SF = <span class="Delimiter">(</span>arg1 &lt; <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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;storing 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; arg1 &lt;&lt; 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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;storing 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; arg1 &lt;&lt; end<span class="Delimiter">();</span> \
 <span id="L107" class="LineNr">107 </span>  SF = <span class="Delimiter">(</span>arg1 &gt;&gt; <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 &lt; <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> &lt;&lt; <span class="Constant">&quot;address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot; is in two segments\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L222" class="LineNr">222 </span>        <a href='003trace.cc.html#L217'>raise</a> &lt;&lt; <span class="Constant">&quot;address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot; is in two segments\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L223" class="LineNr">223 </span>      result = &amp;<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> &lt;&lt; <span class="Constant">&quot;Tried to access uninitialized memory at address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L227" class="LineNr">227 </span>    <a href='003trace.cc.html#L217'>raise</a> &lt;&lt; <span class="Constant">&quot;Tried to access uninitialized memory at address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; 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 &lt; <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> &lt;&lt; <span class="Constant">&quot;address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot; is in two segments\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L238" class="LineNr">238 </span>        <a href='003trace.cc.html#L217'>raise</a> &lt;&lt; <span class="Constant">&quot;address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot; is in two segments\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L239" class="LineNr">239 </span>      result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">uint32_t</span>*&gt;<span class="Delimiter">(</span>&amp;<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> &lt;&lt; <span class="Constant">&quot;Tried to access uninitialized memory at address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L244" class="LineNr">244 </span>    <a href='003trace.cc.html#L190'>raise</a> &lt;&lt; <span class="Constant">&quot;The entire 4-byte <a href='011run.cc.html#L119'>word</a> should be initialized and lie in a single segment.\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L243" class="LineNr">243 </span>    <a href='003trace.cc.html#L217'>raise</a> &lt;&lt; <span class="Constant">&quot;Tried to access uninitialized memory at address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L244" class="LineNr">244 </span>    <a href='003trace.cc.html#L217'>raise</a> &lt;&lt; <span class="Constant">&quot;The entire 4-byte <a href='011run.cc.html#L119'>word</a> should be initialized and lie in a single segment.\n&quot;</span> &lt;&lt; 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 &lt; <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> &lt;&lt; <span class="Constant">&quot;address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot; is in two segments\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L285" class="LineNr">285 </span>        <a href='003trace.cc.html#L217'>raise</a> &lt;&lt; <span class="Constant">&quot;address 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot; is in two segments\n&quot;</span> &lt;&lt; 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 &lt;&lt; <span class="Constant">&quot;registers: &quot;</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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;inst: 0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L413'>HEXWORD</a> &lt;&lt; EIP &lt;&lt; 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 &lt;&lt; <span class="Constant">&quot;opcode: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> &lt;&lt; <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 &lt;&lt; <span class="Constant">&quot;unrecognized second opcode after 0f: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized third opcode after f2 0f: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized second opcode after f2: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized third opcode after f3 0f: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized second opcode after f3: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized opcode: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L412'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L415'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt; <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 &gt; <span class="Constant">0</span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;; &quot;</span><span class="Delimiter">;</span>
-<span id="L371" class="LineNr">371 </span>    cerr &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; std::hex &lt;&lt; std::setw<span class="Delimiter">(</span><span class="Constant">8</span><span class="Delimiter">)</span> &lt;&lt; std::setfill<span class="Delimiter">(</span><span class="Constant">'_'</span><span class="Delimiter">)</span> &lt;&lt; <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 &lt;&lt; <span class="Constant">&quot; -- SF: &quot;</span> &lt;&lt; SF &lt;&lt; <span class="Constant">&quot;; ZF: &quot;</span> &lt;&lt; ZF &lt;&lt; <span class="Constant">&quot;; <a href='010---vm.cc.html#L81'>OF</a>: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L81'>OF</a> &lt;&lt; <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 &quot;End Globals&quot;)</span>
-<span id="L378" class="LineNr">378 </span>map&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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 &quot;End One-time Setup&quot;)</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">&quot;f4&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;halt (hlt)&quot;</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 &quot;End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)&quot;)</span>
-<span id="L391" class="LineNr">391 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">&quot;opcodes&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L392" class="LineNr">392 </span>  cerr &lt;&lt; <span class="Constant">&quot;Opcodes currently supported by SubX:\n&quot;</span><span class="Delimiter">;</span>
-<span id="L393" class="LineNr">393 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>map&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <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&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  0f &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <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&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  f3 &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <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&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  f3 0f &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
-<span id="L401" class="LineNr">401 </span>  cerr &lt;&lt; <span class="Constant">&quot;Run `subx help instructions` for details on <a href='011run.cc.html#L114'>words</a> like 'r32' and 'disp8'.\n&quot;</span>
-<span id="L402" class="LineNr">402 </span>          <span class="Constant">&quot;For complete details on these instructions, consult the IA-32 manual (volume 2).\n&quot;</span>
-<span id="L403" class="LineNr">403 </span>          <span class="Constant">&quot;There's various versions of it online, such as <a href="https://c9x.me/x86">https://c9x.me/x86</a>.\n&quot;</span>
-<span id="L404" class="LineNr">404 </span>          <span class="Constant">&quot;The mnemonics in brackets will help you locate each instruction.\n&quot;</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 &quot;End <a href='001help.cc.html#L53'>Help</a> Contents&quot;)</span>
-<span id="L408" class="LineNr">408 </span>cerr &lt;&lt; <span class="Constant">&quot;  opcodes\n&quot;</span><span class="Delimiter">;</span>
-<span id="L409" class="LineNr">409 </span>
-<span id="L410" class="LineNr">410 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
-<span id="L411" class="LineNr">411 </span><span class="Comment">#include &lt;iomanip&gt;</span>
-<span id="L412" class="LineNr">412 </span><span class="Comment">#define HEXBYTE  std::hex &lt;&lt; std::setw(2) &lt;&lt; std::setfill('0')</span>
-<span id="L413" class="LineNr">413 </span><span class="Comment">#define HEXWORD  std::hex &lt;&lt; std::setw(8) &lt;&lt; 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&lt;int&gt;(X)</span>
-<span id="L416" class="LineNr">416 </span><span class="Comment">#include &lt;stdint.h&gt;</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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;0x&quot;</span> &lt;&lt; <a href='010---vm.cc.html#L433'>HEXWORD</a> &lt;&lt; inst_start_address &lt;&lt; <span class="Constant">&quot; opcode: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> &lt;&lt; <span class="Delimiter">(</span>op == <span class="Constant">0xe8</span> ? <span class="Constant">&quot;/call&quot;</span> : <span class="Constant">&quot;&quot;</span><span class="Delimiter">)</span> &lt;&lt; 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 &lt;&lt; <span class="Constant">&quot;unrecognized second opcode after 0f: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized third opcode after f2 0f: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized second opcode after f2: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized third opcode after f3 0f: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized second opcode after f3: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;unrecognized opcode: &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L432'>HEXBYTE</a> &lt;&lt; <a href='010---vm.cc.html#L435'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> &lt;&lt; <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">&quot;&quot;</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 &lt;&lt; <span class="Constant">&quot;registers: &quot;</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 &lt; <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 &gt; <span class="Constant">0</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Constant">&quot;; &quot;</span><span class="Delimiter">;</span>
+<span id="L372" class="LineNr">372 </span>    out &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; std::hex &lt;&lt; std::setw<span class="Delimiter">(</span><span class="Constant">8</span><span class="Delimiter">)</span> &lt;&lt; std::setfill<span class="Delimiter">(</span><span class="Constant">'_'</span><span class="Delimiter">)</span> &lt;&lt; <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 &lt;&lt; <span class="Constant">&quot; -- SF: &quot;</span> &lt;&lt; SF &lt;&lt; <span class="Constant">&quot;; ZF: &quot;</span> &lt;&lt; ZF &lt;&lt; <span class="Constant">&quot;; <a href='010---vm.cc.html#L81'>OF</a>: &quot;</span> &lt;&lt; <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">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; out<span class="Delimiter">.</span>str<span class="Delimiter">()</span> &lt;&lt; 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 &quot;End Globals&quot;)</span>
+<span id="L380" class="LineNr">380 </span>map&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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&lt;<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string&gt; <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 &quot;End One-time Setup&quot;)</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">&quot;f4&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;halt (hlt)&quot;</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 &quot;End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)&quot;)</span>
+<span id="L393" class="LineNr">393 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">&quot;opcodes&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L394" class="LineNr">394 </span>  cerr &lt;&lt; <span class="Constant">&quot;Opcodes currently supported by SubX:\n&quot;</span><span class="Delimiter">;</span>
+<span id="L395" class="LineNr">395 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>map&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <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&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  0f &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <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&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  f3 &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <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&lt;string<span class="Delimiter">,</span> string&gt;::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 &lt;&lt; <span class="Constant">&quot;  f3 0f &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>first &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; p<span class="Delimiter">-&gt;</span>second &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+<span id="L403" class="LineNr">403 </span>  cerr &lt;&lt; <span class="Constant">&quot;Run `subx help instructions` for details on <a href='011run.cc.html#L114'>words</a> like 'r32' and 'disp8'.\n&quot;</span>
+<span id="L404" class="LineNr">404 </span>          <span class="Constant">&quot;For complete details on these instructions, consult the IA-32 manual (volume 2).\n&quot;</span>
+<span id="L405" class="LineNr">405 </span>          <span class="Constant">&quot;There's various versions of it online, such as <a href="https://c9x.me/x86.">https://c9x.me/x86.</a>\n&quot;</span>
+<span id="L406" class="LineNr">406 </span>          <span class="Constant">&quot;The mnemonics in brackets will help you locate each instruction.\n&quot;</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 &quot;End <a href='001help.cc.html#L53'>Help</a> Contents&quot;)</span>
+<span id="L410" class="LineNr">410 </span>cerr &lt;&lt; <span class="Constant">&quot;  opcodes\n&quot;</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 &quot;End Globals&quot;)</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 &quot;End Reset&quot;)</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 &quot;End Includes&quot;)</span>
+<span id="L431" class="LineNr">431 </span><span class="Comment">#include &lt;iomanip&gt;</span>
+<span id="L432" class="LineNr">432 </span><span class="Comment">#define HEXBYTE  std::hex &lt;&lt; std::setw(2) &lt;&lt; std::setfill('0')</span>
+<span id="L433" class="LineNr">433 </span><span class="Comment">#define HEXWORD  std::hex &lt;&lt; std::setw(8) &lt;&lt; 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&lt;int&gt;(X)</span>
+<span id="L436" class="LineNr">436 </span><span class="Comment">#include &lt;stdint.h&gt;</span>
 </pre>
 </body>
 </html>