about summary refs log blame commit diff stats
path: root/html/060rewrite_literal_string.cc.html
blob: 6596dd01b82e3fab8918be52840e8cb5812eed2f (plain) (tree)
1
2
3
4
5



                                                                                          
                                                

































                                                                                                        
                                                                                 














                                                                                                                                                                                       
                                                                                                                                                                                        

























                                                                                                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                 




























                                                                                                                                                                                                                                                                                                                                                                  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - 060rewrite_literal_string.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v2">
<meta name="syntax" content="cpp">
<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; }
body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color: #080808; }
* { font-size: 12pt; font-size: 1em; }
.Constant { color: #00a0a0; }
.traceContains { color: #008000; }
.Comment { color: #9090ff; }
.Delimiter { color: #800080; }
.Special { color: #c00000; }
.Identifier { color: #fcb165; }
.Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
-->
</style>

<script type='text/javascript'>
<!--

-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment">//: allow using literal strings anywhere that will accept immutable strings</span>

<span class="Delimiter">:(scenario passing_literals_to_recipes)</span>
def main [
  <span class="Constant">1</span>:number/<span class="Special">raw &lt;- </span>foo [abc]
]
def foo x:address:array:character <span class="Delimiter">-&gt;</span> n:number [
  local-scope
  load-ingredients
  n<span class="Special"> &lt;- </span>length *x
]
<span class="traceContains">+mem: storing 3 in location 1</span>

<span class="Delimiter">:(before &quot;End Instruction Inserting/Deleting Transforms&quot;)</span>
initialize_transform_rewrite_literal_string_to_text<span class="Delimiter">();</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>rewrite_literal_string_to_text<span class="Delimiter">);</span>

<span class="Delimiter">:(before &quot;End Globals&quot;)</span>
set&lt;string&gt; recipes_taking_literal_strings<span class="Delimiter">;</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> initialize_transform_rewrite_literal_string_to_text<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;$print&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;$system&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;trace&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;stash&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;assert&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;new&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;assume-console&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;memory-should-contain&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;trace-should-contain&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;trace-should-not-contain&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;check-trace-count-for-label&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;screen-should-contain&quot;</span><span class="Delimiter">);</span>
  recipes_taking_literal_strings<span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;screen-should-contain-in-color&quot;</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>

<span class="Normal">void</span> rewrite_literal_string_to_text<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- rewrite literal strings in recipe &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; end<span class="Delimiter">();</span>
  <span class="Normal">if</span> <span class="Delimiter">(</span>contains_numeric_locations<span class="Delimiter">(</span>caller<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
  vector&lt;instruction&gt; new_instructions<span class="Delimiter">;</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; SIZE<span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
    <span class="Normal">if</span> <span class="Delimiter">(</span>recipes_taking_literal_strings<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">)</span> == recipes_taking_literal_strings<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
      <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j &lt; SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span>
        <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
        instruction def<span class="Delimiter">;</span>
        ostringstream ingredient_name<span class="Delimiter">;</span>
        ingredient_name &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">'_'</span> &lt;&lt; i &lt;&lt; <span class="Constant">'_'</span> &lt;&lt; j &lt;&lt; <span class="Constant">&quot;:address:array:character&quot;</span><span class="Delimiter">;</span>
        def<span class="Delimiter">.</span>name = <span class="Constant">&quot;new&quot;</span><span class="Delimiter">;</span>
        def<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">));</span>
        def<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span>ingredient_name<span class="Delimiter">.</span>str<span class="Delimiter">()));</span>
        new_instructions<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>def<span class="Delimiter">);</span>
        inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">).</span>clear<span class="Delimiter">();</span>  <span class="Comment">// reclaim old memory</span>
        inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)</span> = reagent<span class="Delimiter">(</span>ingredient_name<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
      <span class="Delimiter">}</span>
    <span class="Delimiter">}</span>
    new_instructions<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
  <span class="Delimiter">}</span>
  caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_instructions<span class="Delimiter">);</span>
<span class="Delimiter">}</span>

<span class="Normal">bool</span> contains_numeric_locations<span class="Delimiter">(</span><span class="Normal">const</span> recipe&amp; caller<span class="Delimiter">)</span> <span class="Delimiter">{</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; SIZE<span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    <span class="Normal">const</span> instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
    <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> in = <span class="Constant">0</span><span class="Delimiter">;</span> in &lt; SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++in<span class="Delimiter">)</span>
      <span class="Normal">if</span> <span class="Delimiter">(</span>is_numeric_location<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>in<span class="Delimiter">)))</span>
        <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
    <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> out = <span class="Constant">0</span><span class="Delimiter">;</span> out &lt; SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++out<span class="Delimiter">)</span>
      <span class="Normal">if</span> <span class="Delimiter">(</span>is_numeric_location<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>out<span class="Delimiter">)))</span>
        <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
  <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
span class="nt">span id="L61" class="LineNr"> 61 </span><span class="Special"><a href='032operands.cc.html#L49'>Instruction_operands</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;imm8&quot;</span><span class="Delimiter">);</span> <span id="L62" class="LineNr"> 62 </span><span class="Special"><a href='032operands.cc.html#L49'>Instruction_operands</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">&quot;imm32&quot;</span><span class="Delimiter">);</span> <span id="L63" class="LineNr"> 63 </span> <span id="L64" class="LineNr"> 64 </span><span class="Delimiter">:(before &quot;End <a href='001help.cc.html#L53'>Help</a> Texts&quot;)</span> <span id="L65" class="LineNr"> 65 </span><a href='032operands.cc.html#L67'>init_operand_type_help</a><span class="Delimiter">();</span> <span id="L66" class="LineNr"> 66 </span><span class="Delimiter">:(code)</span> <span id="L67" class="LineNr"> 67 </span><span class="Normal">void</span> <a href='032operands.cc.html#L67'>init_operand_type_help</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L68" class="LineNr"> 68 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;mod&quot;</span><span class="Delimiter">,</span> <span id="L69" class="LineNr"> 69 </span> <span class="Constant">&quot;2-bit operand controlling the _addressing mode_ of many instructions,\n&quot;</span> <span id="L70" class="LineNr"> 70 </span> <span class="Constant">&quot;to determine how to compute the _effective address_ to look up memory at\n&quot;</span> <span id="L71" class="LineNr"> 71 </span> <span class="Constant">&quot;based on the 'rm32' operand and potentially others.\n&quot;</span> <span id="L72" class="LineNr"> 72 </span> <span class="Constant">&quot;\n&quot;</span> <span id="L73" class="LineNr"> 73 </span> <span class="Constant">&quot;If mod = 3, just operate on the <a href='003trace.cc.html#L117'>contents</a> of the register specified by rm32\n&quot;</span> <span id="L74" class="LineNr"> 74 </span> <span class="Constant">&quot; (direct mode).\n&quot;</span> <span id="L75" class="LineNr"> 75 </span> <span class="Constant">&quot;If mod = 2, effective address is usually* rm32 + disp32\n&quot;</span> <span id="L76" class="LineNr"> 76 </span> <span class="Constant">&quot; (indirect mode with displacement).\n&quot;</span> <span id="L77" class="LineNr"> 77 </span> <span class="Constant">&quot;If mod = 1, effective address is usually* rm32 + disp8\n&quot;</span> <span id="L78" class="LineNr"> 78 </span> <span class="Constant">&quot; (indirect mode with displacement).\n&quot;</span> <span id="L79" class="LineNr"> 79 </span> <span class="Constant">&quot;If mod = 0, effective address is usually* rm32 (indirect mode).\n&quot;</span> <span id="L80" class="LineNr"> 80 </span> <span class="Constant">&quot;(* - The exception is when rm32 is '4'. Register 4 is the stack pointer (<a href='010vm.cc.html#L14'>ESP</a>).\n&quot;</span> <span id="L81" class="LineNr"> 81 </span> <span class="Constant">&quot; Using it as an address gets more involved. For more details,\n&quot;</span> <span id="L82" class="LineNr"> 82 </span> <span class="Constant">&quot; try reading the help pages for 'base', 'index' and 'scale'.)\n&quot;</span> <span id="L83" class="LineNr"> 83 </span> <span class="Constant">&quot;\n&quot;</span> <span id="L84" class="LineNr"> 84 </span> <span class="Constant">&quot;For complete details, spend some time with two tables in the IA-32 software\n&quot;</span> <span id="L85" class="LineNr"> 85 </span> <span class="Constant">&quot;developer's manual that are also included in this repo:\n&quot;</span> <span id="L86" class="LineNr"> 86 </span> <span class="Constant">&quot; - modrm.pdf: volume 2, table 2-2, \&quot;</span><span class="Constant">32</span>-bit addressing with the ModR/<span class="Special">M</span> byte<span class="Delimiter">.</span>\<span class="Constant">&quot;.\n&quot;</span> <span id="L87" class="LineNr"> 87 </span> <span class="Constant">&quot; - sib.pdf: volume 2, table 2-3, \&quot;</span><span class="Constant">32</span>-bit addressing with the SIB byte<span class="Delimiter">.</span>\<span class="Constant">&quot;.\n&quot;</span> <span id="L88" class="LineNr"> 88 </span> <span class="Delimiter">);</span> <span id="L89" class="LineNr"> 89 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;subop&quot;</span><span class="Delimiter">,</span> <span id="L90" class="LineNr"> 90 </span> <span class="Constant">&quot;Additional 3-bit operand for determining the instruction when the opcode\n&quot;</span> <span id="L91" class="LineNr"> 91 </span> <span class="Constant">&quot;is 81, 8f, d3, f7 or ff.\n&quot;</span> <span id="L92" class="LineNr"> 92 </span> <span class="Constant">&quot;Can't coexist with operand of type 'r32' in a single instruction, because\n&quot;</span> <span id="L93" class="LineNr"> 93 </span> <span class="Constant">&quot;the two use the same bits.\n&quot;</span> <span id="L94" class="LineNr"> 94 </span> <span class="Delimiter">);</span> <span id="L95" class="LineNr"> 95 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;r32&quot;</span><span class="Delimiter">,</span> <span id="L96" class="LineNr"> 96 </span> <span class="Constant">&quot;3-bit operand specifying a register operand used directly, without any further addressing modes.\n&quot;</span> <span id="L97" class="LineNr"> 97 </span> <span class="Delimiter">);</span> <span id="L98" class="LineNr"> 98 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;rm32&quot;</span><span class="Delimiter">,</span> <span id="L99" class="LineNr"> 99 </span> <span class="Constant">&quot;32-bit value in register or memory. The precise details of its construction\n&quot;</span> <span id="L100" class="LineNr">100 </span> <span class="Constant">&quot;depend on the eponymous 3-bit 'rm32' operand, the 'mod' operand, and also\n&quot;</span> <span id="L101" class="LineNr">101 </span> <span class="Constant">&quot;potentially the 'SIB' operands ('scale', 'index' and 'base') and a displacement\n&quot;</span> <span id="L102" class="LineNr">102 </span> <span class="Constant">&quot;('disp8' or 'disp32').\n&quot;</span> <span id="L103" class="LineNr">103 </span> <span class="Constant">&quot;\n&quot;</span> <span id="L104" class="LineNr">104 </span> <span class="Constant">&quot;For complete details, spend some time with two tables in the IA-32 software\n&quot;</span> <span id="L105" class="LineNr">105 </span> <span class="Constant">&quot;developer's manual that are also included in this repo:\n&quot;</span> <span id="L106" class="LineNr">106 </span> <span class="Constant">&quot; - modrm.pdf: volume 2, table 2-2, \&quot;</span><span class="Constant">32</span>-bit addressing with the ModR/<span class="Special">M</span> byte<span class="Delimiter">.</span>\<span class="Constant">&quot;.\n&quot;</span> <span id="L107" class="LineNr">107 </span> <span class="Constant">&quot; - sib.pdf: volume 2, table 2-3, \&quot;</span><span class="Constant">32</span>-bit addressing with the SIB byte<span class="Delimiter">.</span>\<span class="Constant">&quot;.\n&quot;</span> <span id="L108" class="LineNr">108 </span> <span class="Delimiter">);</span> <span id="L109" class="LineNr">109 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;base&quot;</span><span class="Delimiter">,</span> <span id="L110" class="LineNr">110 </span> <span class="Constant">&quot;Additional 3-bit operand (when 'rm32' is 4, unless 'mod' is 3) specifying the\n&quot;</span> <span id="L111" class="LineNr">111 </span> <span class="Constant">&quot;register containing an address to look up.\n&quot;</span> <span id="L112" class="LineNr">112 </span> <span class="Constant">&quot;This address may be further modified by 'index' and 'scale' operands.\n&quot;</span> <span id="L113" class="LineNr">113 </span> <span class="Constant">&quot; effective address = base + index*scale + displacement (disp8 or <a href='040tests.cc.html#L82'>disp32</a>)\n&quot;</span> <span id="L114" class="LineNr">114 </span> <span class="Constant">&quot;For complete details, spend some time with the IA-32 software developer's manual,\n&quot;</span> <span id="L115" class="LineNr">115 </span> <span class="Constant">&quot;volume 2, table 2-3, \&quot;</span><span class="Constant">32</span>-bit addressing with the SIB byte\<span class="Constant">&quot;.\n&quot;</span> <span id="L116" class="LineNr">116 </span> <span class="Constant">&quot;It is included in this repository as 'sib.pdf'.\n&quot;</span> <span id="L117" class="LineNr">117 </span> <span class="Delimiter">);</span> <span id="L118" class="LineNr">118 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;index&quot;</span><span class="Delimiter">,</span> <span id="L119" class="LineNr">119 </span> <span class="Constant">&quot;Optional 3-bit operand (when 'rm32' is 4 unless 'mod' is 3) that can be added to\n&quot;</span> <span id="L120" class="LineNr">120 </span> <span class="Constant">&quot;the 'base' operand to compute the 'effective address' at which to look up memory.\n&quot;</span> <span id="L121" class="LineNr">121 </span> <span class="Constant">&quot; effective address = base + index*scale + displacement (disp8 or <a href='040tests.cc.html#L82'>disp32</a>)\n&quot;</span> <span id="L122" class="LineNr">122 </span> <span class="Constant">&quot;For complete details, spend some time with the IA-32 software developer's manual,\n&quot;</span> <span id="L123" class="LineNr">123 </span> <span class="Constant">&quot;volume 2, table 2-3, \&quot;</span><span class="Constant">32</span>-bit addressing with the SIB byte\<span class="Constant">&quot;.\n&quot;</span> <span id="L124" class="LineNr">124 </span> <span class="Constant">&quot;It is included in this repository as 'sib.pdf'.\n&quot;</span> <span id="L125" class="LineNr">125 </span> <span class="Delimiter">);</span> <span id="L126" class="LineNr">126 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;scale&quot;</span><span class="Delimiter">,</span> <span id="L127" class="LineNr">127 </span> <span class="Constant">&quot;Optional 2-bit operand (when 'rm32' is 4 unless 'mod' is 3) that encodes a\n&quot;</span> <span id="L128" class="LineNr">128 </span> <span class="Constant">&quot;power of 2 to be multiplied to the 'index' operand before adding the result to\n&quot;</span> <span id="L129" class="LineNr">129 </span> <span class="Constant">&quot;the 'base' operand to compute the _effective address_ to operate on.\n&quot;</span> <span id="L130" class="LineNr">130 </span> <span class="Constant">&quot; effective address = base + index * scale + displacement (disp8 or <a href='040tests.cc.html#L82'>disp32</a>)\n&quot;</span> <span id="L131" class="LineNr">131 </span> <span class="Constant">&quot;\n&quot;</span> <span id="L132" class="LineNr">132 </span> <span class="Constant">&quot;When scale is 0, use index unmodified.\n&quot;</span> <span id="L133" class="LineNr">133 </span> <span class="Constant">&quot;When scale is 1, multiply index by 2.\n&quot;</span> <span id="L134" class="LineNr">134 </span> <span class="Constant">&quot;When scale is 2, multiply index by 4.\n&quot;</span> <span id="L135" class="LineNr">135 </span> <span class="Constant">&quot;When scale is 3, multiply index by 8.\n&quot;</span> <span id="L136" class="LineNr">136 </span> <span class="Constant">&quot;\n&quot;</span> <span id="L137" class="LineNr">137 </span> <span class="Constant">&quot;For complete details, spend some time with the IA-32 software developer's manual,\n&quot;</span> <span id="L138" class="LineNr">138 </span> <span class="Constant">&quot;volume 2, table 2-3, \&quot;</span><span class="Constant">32</span>-bit addressing with the SIB byte\<span class="Constant">&quot;.\n&quot;</span> <span id="L139" class="LineNr">139 </span> <span class="Constant">&quot;It is included in this repository as 'sib.pdf'.\n&quot;</span> <span id="L140" class="LineNr">140 </span> <span class="Delimiter">);</span> <span id="L141" class="LineNr">141 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;disp8&quot;</span><span class="Delimiter">,</span> <span id="L142" class="LineNr">142 </span> <span class="Constant">&quot;8-bit value to be added in many instructions.\n&quot;</span> <span id="L143" class="LineNr">143 </span> <span class="Delimiter">);</span> <span id="L144" class="LineNr">144 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;disp16&quot;</span><span class="Delimiter">,</span> <span id="L145" class="LineNr">145 </span> <span class="Constant">&quot;16-bit value to be added in many instructions.\n&quot;</span> <span id="L146" class="LineNr">146 </span> <span class="Constant">&quot;Currently not used in any SubX instructions.\n&quot;</span> <span id="L147" class="LineNr">147 </span> <span class="Delimiter">);</span> <span id="L148" class="LineNr">148 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;disp32&quot;</span><span class="Delimiter">,</span> <span id="L149" class="LineNr">149 </span> <span class="Constant">&quot;32-bit value to be added in many instructions.\n&quot;</span> <span id="L150" class="LineNr">150 </span> <span class="Delimiter">);</span> <span id="L151" class="LineNr">151 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;imm8&quot;</span><span class="Delimiter">,</span> <span id="L152" class="LineNr">152 </span> <span class="Constant">&quot;8-bit value for many instructions.\n&quot;</span> <span id="L153" class="LineNr">153 </span> <span class="Delimiter">);</span> <span id="L154" class="LineNr">154 </span> <a href='001help.cc.html#L229'>put</a><span class="Delimiter">(</span><span class="Special"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;imm32&quot;</span><span class="Delimiter">,</span> <span id="L155" class="LineNr">155 </span> <span class="Constant">&quot;32-bit value for many instructions.\n&quot;</span> <span id="L156" class="LineNr">156 </span> <span class="Delimiter">);</span> <span id="L157" class="LineNr">157 </span><span class="Delimiter">}</span> <span id="L158" class="LineNr">158 </span> <span id="L159" class="LineNr">159 </span><span class="SalientComment">//:: transform packing operands into bytes in the right order</span> <span id="L160" class="LineNr">160 </span> <span id="L161" class="LineNr">161 </span><span class="Delimiter">:(after &quot;Begin Transforms&quot;)</span> <span id="L162" class="LineNr">162 </span><span class="Special"><a href='031transforms.cc.html#L4'>Transform</a></span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pack_operands<span class="Delimiter">);</span> <span id="L163" class="LineNr">163 </span> <span id="L164" class="LineNr">164 </span><span class="Delimiter">:(code)</span> <span id="L165" class="LineNr">165 </span><span class="Normal">void</span> pack_operands<span class="Delimiter">(</span>program&amp; p<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L166" class="LineNr">166 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L167" class="LineNr">167 </span> segment&amp; code = *find<span class="Delimiter">(</span>p<span class="Delimiter">,</span> <span class="Constant">&quot;code&quot;</span><span class="Delimiter">);</span> <span id="L168" class="LineNr">168 </span> <span class="Comment">// Pack Operands(segment code)</span> <span id="L169" class="LineNr">169 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;-- pack operands&quot;</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L170" class="LineNr">170 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L171" class="LineNr">171 </span> line&amp; inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L172" class="LineNr">172 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='032operands.cc.html#L430'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L173" class="LineNr">173 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;packing instruction '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">with metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L174" class="LineNr">174 </span> pack_operands<span class="Delimiter">(</span>inst<span class="Delimiter">);</span> <span id="L175" class="LineNr">175 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction after packing: '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">without metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">.</span>words<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L176" class="LineNr">176 </span> <span class="Delimiter">}</span> <span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> <span id="L178" class="LineNr">178 </span> <span id="L179" class="LineNr">179 </span><span class="Normal">void</span> pack_operands<span class="Delimiter">(</span>line&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L180" class="LineNr">180 </span> <a href='011run.cc.html#L121'>line</a> new_inst<span class="Delimiter">;</span> <span id="L181" class="LineNr">181 </span> <a href='032operands.cc.html#L189'>add_opcodes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> <span id="L182" class="LineNr">182 </span> <a href='032operands.cc.html#L199'>add_modrm_byte</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> <span id="L183" class="LineNr">183 </span> <a href='032operands.cc.html#L225'>add_sib_byte</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> <span id="L184" class="LineNr">184 </span> <a href='032operands.cc.html#L247'>add_disp_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> <span id="L185" class="LineNr">185 </span> <a href='032operands.cc.html#L259'>add_imm_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> <span id="L186" class="LineNr">186 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> <span id="L187" class="LineNr">187 </span><span class="Delimiter">}</span> <span id="L188" class="LineNr">188 </span> <span id="L189" class="LineNr">189 </span><span class="Normal">void</span> <a href='032operands.cc.html#L189'>add_opcodes</a><span class="Delimiter">(</span><span class="Normal">const</span> line&amp; in<span class="Delimiter">,</span> line&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L190" class="LineNr">190 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span> <span id="L191" class="LineNr">191 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;0f&quot;</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;f2&quot;</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;f3&quot;</span><span class="Delimiter">)</span> <span id="L192" class="LineNr">192 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> <span id="L193" class="LineNr">193 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;f3&quot;</span> &amp;&amp; in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;0f&quot;</span><span class="Delimiter">)</span> <span id="L194" class="LineNr">194 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</span> <span id="L195" class="LineNr">195 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;f2&quot;</span> &amp;&amp; in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">&quot;0f&quot;</span><span class="Delimiter">)</span> <span id="L196" class="LineNr">196 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</span> <span id="L197" class="LineNr">197 </span><span class="Delimiter">}</span> <span id="L198" class="LineNr">198 </span> <span id="L199" class="LineNr">199 </span><span class="Normal">void</span> <a href='032operands.cc.html#L199'>add_modrm_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line&amp; in<span class="Delimiter">,</span> line&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L200" class="LineNr">200 </span> <span class="Normal">uint8_t</span> mod=<span class="Constant">0</span><span class="Delimiter">,</span> reg_subop=<span class="Constant">0</span><span class="Delimiter">,</span> rm32=<span class="Constant">0</span><span class="Delimiter">;</span> <span id="L201" class="LineNr">201 </span> <span class="Normal">bool</span> emit = <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L202" class="LineNr">202 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L203" class="LineNr">203 </span> <span class="Normal">const</span> word&amp; curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L204" class="LineNr">204 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;mod&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L205" class="LineNr">205 </span> mod = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L206" class="LineNr">206 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L207" class="LineNr">207 </span> <span class="Delimiter">}</span> <span id="L208" class="LineNr">208 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;rm32&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L209" class="LineNr">209 </span> rm32 = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L210" class="LineNr">210 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L211" class="LineNr">211 </span> <span class="Delimiter">}</span> <span id="L212" class="LineNr">212 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;r32&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L213" class="LineNr">213 </span> reg_subop = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L214" class="LineNr">214 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L215" class="LineNr">215 </span> <span class="Delimiter">}</span> <span id="L216" class="LineNr">216 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;subop&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L217" class="LineNr">217 </span> reg_subop = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L218" class="LineNr">218 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L219" class="LineNr">219 </span> <span class="Delimiter">}</span> <span id="L220" class="LineNr">220 </span> <span class="Delimiter">}</span> <span id="L221" class="LineNr">221 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span> <span id="L222" class="LineNr">222 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='032operands.cc.html#L289'>hex_byte_text</a><span class="Delimiter">((</span>mod &lt;&lt; <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>reg_subop &lt;&lt; <span class="Constant">3</span><span class="Delimiter">)</span> | rm32<span class="Delimiter">));</span> <span id="L223" class="LineNr">223 </span><span class="Delimiter">}</span> <span id="L224" class="LineNr">224 </span> <span id="L225" class="LineNr">225 </span><span class="Normal">void</span> <a href='032operands.cc.html#L225'>add_sib_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line&amp; in<span class="Delimiter">,</span> line&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L226" class="LineNr">226 </span> <span class="Normal">uint8_t</span> scale=<span class="Constant">0</span><span class="Delimiter">,</span> index=<span class="Constant">0</span><span class="Delimiter">,</span> base=<span class="Constant">0</span><span class="Delimiter">;</span> <span id="L227" class="LineNr">227 </span> <span class="Normal">bool</span> emit = <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L228" class="LineNr">228 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L229" class="LineNr">229 </span> <span class="Normal">const</span> word&amp; curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L230" class="LineNr">230 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;scale&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L231" class="LineNr">231 </span> scale = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L232" class="LineNr">232 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L233" class="LineNr">233 </span> <span class="Delimiter">}</span> <span id="L234" class="LineNr">234 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;index&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L235" class="LineNr">235 </span> index = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L236" class="LineNr">236 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L237" class="LineNr">237 </span> <span class="Delimiter">}</span> <span id="L238" class="LineNr">238 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;base&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L239" class="LineNr">239 </span> base = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L240" class="LineNr">240 </span> emit = <span class="Constant">true</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="Delimiter">}</span> <span id="L243" class="LineNr">243 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span> <span id="L244" class="LineNr">244 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='032operands.cc.html#L289'>hex_byte_text</a><span class="Delimiter">((</span>scale &lt;&lt; <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>index &lt;&lt; <span class="Constant">3</span><span class="Delimiter">)</span> | base<span class="Delimiter">));</span> <span id="L245" class="LineNr">245 </span><span class="Delimiter">}</span> <span id="L246" class="LineNr">246 </span> <span id="L247" class="LineNr">247 </span><span class="Normal">void</span> <a href='032operands.cc.html#L247'>add_disp_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line&amp; in<span class="Delimiter">,</span> line&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L248" class="LineNr">248 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L249" class="LineNr">249 </span> <span class="Normal">const</span> word&amp; curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L250" class="LineNr">250 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;disp8&quot;</span><span class="Delimiter">))</span> <span id="L251" class="LineNr">251 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L252" class="LineNr">252 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;disp16&quot;</span><span class="Delimiter">))</span> <span id="L253" class="LineNr">253 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L254" class="LineNr">254 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;disp32&quot;</span><span class="Delimiter">))</span> <span id="L255" class="LineNr">255 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L256" class="LineNr">256 </span> <span class="Delimiter">}</span> <span id="L257" class="LineNr">257 </span><span class="Delimiter">}</span> <span id="L258" class="LineNr">258 </span> <span id="L259" class="LineNr">259 </span><span class="Normal">void</span> <a href='032operands.cc.html#L259'>add_imm_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line&amp; in<span class="Delimiter">,</span> line&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L260" class="LineNr">260 </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#L170'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L261" class="LineNr">261 </span> <span class="Normal">const</span> word&amp; curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L262" class="LineNr">262 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;imm8&quot;</span><span class="Delimiter">))</span> <span id="L263" class="LineNr">263 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L264" class="LineNr">264 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">&quot;imm32&quot;</span><span class="Delimiter">))</span> <span id="L265" class="LineNr">265 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L266" class="LineNr">266 </span> <span class="Delimiter">}</span> <span id="L267" class="LineNr">267 </span><span class="Delimiter">}</span> <span id="L268" class="LineNr">268 </span> <span id="L269" class="LineNr">269 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line&amp; out<span class="Delimiter">,</span> <span class="Normal">const</span> word&amp; w<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L270" class="LineNr">270 </span> assert<span class="Delimiter">(</span>num &lt;= <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L271" class="LineNr">271 </span> <span class="Normal">bool</span> is_number = <a href='032operands.cc.html#L490'>looks_like_hex_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">);</span> <span id="L272" class="LineNr">272 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>num == <span class="Constant">1</span> || !is_number<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L273" class="LineNr">273 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>w<span class="Delimiter">);</span> <span class="Comment">// preserve existing metadata</span> <span id="L274" class="LineNr">274 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_number<span class="Delimiter">)</span> <span id="L275" class="LineNr">275 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>data = <a href='032operands.cc.html#L296'>hex_byte_to_string</a><span class="Delimiter">(</span><a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">));</span> <span id="L276" class="LineNr">276 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L277" class="LineNr">277 </span> <span class="Delimiter">}</span> <span id="L278" class="LineNr">278 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> <span class="Normal">static_cast</span>&lt;<span class="Normal">uint32_t</span>&gt;<span class="Delimiter">(</span><a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">)),</span> num<span class="Delimiter">);</span> <span id="L279" class="LineNr">279 </span><span class="Delimiter">}</span> <span id="L280" class="LineNr">280 </span> <span id="L281" class="LineNr">281 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line&amp; out<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L282" class="LineNr">282 </span> assert<span class="Delimiter">(</span>num &lt;= <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L283" class="LineNr">283 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; num<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L284" class="LineNr">284 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='032operands.cc.html#L289'>hex_byte_text</a><span class="Delimiter">(</span>val &amp; <span class="Constant">0xff</span><span class="Delimiter">));</span> <span id="L285" class="LineNr">285 </span> val = val &gt;&gt; <span class="Constant">8</span><span class="Delimiter">;</span> <span id="L286" class="LineNr">286 </span> <span class="Delimiter">}</span> <span id="L287" class="LineNr">287 </span><span class="Delimiter">}</span> <span id="L288" class="LineNr">288 </span> <span id="L289" class="LineNr">289 </span><a href='011run.cc.html#L127'>word</a> <a href='032operands.cc.html#L289'>hex_byte_text</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L290" class="LineNr">290 </span> <a href='011run.cc.html#L127'>word</a> result<span class="Delimiter">;</span> <span id="L291" class="LineNr">291 </span> result<span class="Delimiter">.</span>data = <a href='032operands.cc.html#L296'>hex_byte_to_string</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> <span id="L292" class="LineNr">292 </span> result<span class="Delimiter">.</span>original = result<span class="Delimiter">.</span>data+<span class="Constant">&quot;/auto&quot;</span><span class="Delimiter">;</span> <span id="L293" class="LineNr">293 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L294" class="LineNr">294 </span><span class="Delimiter">}</span> <span id="L295" class="LineNr">295 </span> <span id="L296" class="LineNr">296 </span>string <a href='032operands.cc.html#L296'>hex_byte_to_string</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L297" class="LineNr">297 </span> ostringstream out<span class="Delimiter">;</span> <span id="L298" class="LineNr">298 </span> <span class="Comment">// uint8_t prints without padding, but int8_t will expand to 32 bits again</span> <span id="L299" class="LineNr">299 </span> out &lt;&lt; <a href='010vm.cc.html#L394'>HEXBYTE</a> &lt;&lt; <a href='010vm.cc.html#L397'>NUM</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> <span id="L300" class="LineNr">300 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> <span id="L301" class="LineNr">301 </span><span class="Delimiter">}</span> <span id="L302" class="LineNr">302 </span> <span id="L303" class="LineNr">303 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> vector&lt;word&gt;&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L304" class="LineNr">304 </span> ostringstream out<span class="Delimiter">;</span> <span id="L305" class="LineNr">305 </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#L170'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L306" class="LineNr">306 </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">' '</span><span class="Delimiter">;</span> <span id="L307" class="LineNr">307 </span> out &lt;&lt; in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">;</span> <span id="L308" class="LineNr">308 </span> <span class="Delimiter">}</span> <span id="L309" class="LineNr">309 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> <span id="L310" class="LineNr">310 </span><span class="Delimiter">}</span> <span id="L311" class="LineNr">311 </span> <span id="L312" class="LineNr">312 </span><span class="Delimiter">:(before &quot;End Unit Tests&quot;)</span> <span id="L313" class="LineNr">313 </span><span class="Normal">void</span> <a href='032operands.cc.html#L313'>test_preserve_metadata_when_emitting_single_byte</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L314" class="LineNr">314 </span> <a href='011run.cc.html#L127'>word</a> in<span class="Delimiter">;</span> <span id="L315" class="LineNr">315 </span> in<span class="Delimiter">.</span>data = <span class="Constant">&quot;f0&quot;</span><span class="Delimiter">;</span> <span id="L316" class="LineNr">316 </span> in<span class="Delimiter">.</span>original = <span class="Constant">&quot;f0/foo&quot;</span><span class="Delimiter">;</span> <span id="L317" class="LineNr">317 </span> <a href='011run.cc.html#L121'>line</a> out<span class="Delimiter">;</span> <span id="L318" class="LineNr">318 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> in<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L319" class="LineNr">319 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data<span class="Delimiter">,</span> <span class="Constant">&quot;f0&quot;</span><span class="Delimiter">);</span> <span id="L320" class="LineNr">320 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original<span class="Delimiter">,</span> <span class="Constant">&quot;f0/foo&quot;</span><span class="Delimiter">);</span> <span id="L321" class="LineNr">321 </span><span class="Delimiter">}</span> <span id="L322" class="LineNr">322 </span> <span id="L323" class="LineNr">323 </span><span class="Delimiter">:(code)</span> <span id="L324" class="LineNr">324 </span><span class="Normal">void</span> <a href='032operands.cc.html#L324'>test_pack_disp8</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L325" class="LineNr">325 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L326" class="LineNr">326 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L327" class="LineNr">327 </span> <span class="Constant">&quot;74 2/disp8\n&quot;</span> <span class="Comment">// jump 2 bytes away if ZF is set</span> <span id="L328" class="LineNr">328 </span> <span class="Delimiter">);</span> <span id="L329" class="LineNr">329 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L330" class="LineNr">330 </span> <span class="Constant">&quot;transform: packing instruction '74 2/disp8'\n&quot;</span> <span id="L331" class="LineNr">331 </span> <span class="Constant">&quot;transform: instruction after packing: '74 02'\n&quot;</span> <span id="L332" class="LineNr">332 </span> <span class="Delimiter">);</span> <span id="L333" class="LineNr">333 </span><span class="Delimiter">}</span> <span id="L334" class="LineNr">334 </span> <span id="L335" class="LineNr">335 </span><span class="Normal">void</span> <a href='032operands.cc.html#L335'>test_pack_disp8_negative</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L336" class="LineNr">336 </span> transform<span class="Delimiter">(</span> <span id="L337" class="LineNr">337 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L338" class="LineNr">338 </span> <span class="Comment">// running this will cause an infinite loop</span> <span id="L339" class="LineNr">339 </span> <span class="Constant">&quot;74 -1/disp8\n&quot;</span> <span class="Comment">// jump 1 byte before if ZF is set</span> <span id="L340" class="LineNr">340 </span> <span class="Delimiter">);</span> <span id="L341" class="LineNr">341 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L342" class="LineNr">342 </span> <span class="Constant">&quot;transform: packing instruction '74 -1/disp8'\n&quot;</span> <span id="L343" class="LineNr">343 </span> <span class="Constant">&quot;transform: instruction after packing: '74 ff'\n&quot;</span> <span id="L344" class="LineNr">344 </span> <span class="Delimiter">);</span> <span id="L345" class="LineNr">345 </span><span class="Delimiter">}</span> <span id="L346" class="LineNr">346 </span> <span id="L347" class="LineNr">347 </span><span class="Comment">//: helper for scenario</span> <span id="L348" class="LineNr">348 </span><span class="Normal">void</span> transform<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L349" class="LineNr">349 </span> program p<span class="Delimiter">;</span> <span id="L350" class="LineNr">350 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> <span id="L351" class="LineNr">351 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> <span id="L352" class="LineNr">352 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L264'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L353" class="LineNr">353 </span> transform<span class="Delimiter">(</span>p<span class="Delimiter">);</span> <span id="L354" class="LineNr">354 </span><span class="Delimiter">}</span> <span id="L355" class="LineNr">355 </span> <span id="L356" class="LineNr">356 </span><span class="Normal">void</span> <a href='032operands.cc.html#L356'>test_pack_modrm_imm32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L357" class="LineNr">357 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L358" class="LineNr">358 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L359" class="LineNr">359 </span> <span class="Comment">// instruction effective address operand displacement immediate\n&quot;</span> <span id="L360" class="LineNr">360 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n&quot;</span> <span id="L361" class="LineNr">361 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n&quot;</span> <span id="L362" class="LineNr">362 </span> <span class="Constant">&quot; 81 0/add/subop 3/mod/direct 3/ebx/rm32 1/imm32 \n&quot;</span> <span class="Comment">// add 1 to EBX</span> <span id="L363" class="LineNr">363 </span> <span class="Delimiter">);</span> <span id="L364" class="LineNr">364 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L365" class="LineNr">365 </span> <span class="Constant">&quot;transform: packing instruction '81 0/add/subop 3/mod/direct 3/ebx/rm32 1/imm32'\n&quot;</span> <span id="L366" class="LineNr">366 </span> <span class="Constant">&quot;transform: instruction after packing: '81 c3 01 00 00 00'\n&quot;</span> <span id="L367" class="LineNr">367 </span> <span class="Delimiter">);</span> <span id="L368" class="LineNr">368 </span><span class="Delimiter">}</span> <span id="L369" class="LineNr">369 </span> <span id="L370" class="LineNr">370 </span><span class="Normal">void</span> <a href='032operands.cc.html#L370'>test_pack_imm32_large</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L371" class="LineNr">371 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L372" class="LineNr">372 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L373" class="LineNr">373 </span> <span class="Constant">&quot;b9 0x080490a7/imm32\n&quot;</span> <span id="L374" class="LineNr">374 </span> <span class="Delimiter">);</span> <span id="L375" class="LineNr">375 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L376" class="LineNr">376 </span> <span class="Constant">&quot;transform: packing instruction 'b9 0x080490a7/imm32'\n&quot;</span> <span id="L377" class="LineNr">377 </span> <span class="Constant">&quot;transform: instruction after packing: 'b9 a7 90 04 08'\n&quot;</span> <span id="L378" class="LineNr">378 </span> <span class="Delimiter">);</span> <span id="L379" class="LineNr">379 </span><span class="Delimiter">}</span> <span id="L380" class="LineNr">380 </span> <span id="L381" class="LineNr">381 </span><span class="Normal">void</span> <a href='032operands.cc.html#L381'>test_pack_immediate_constants_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L382" class="LineNr">382 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L383" class="LineNr">383 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L384" class="LineNr">384 </span> <span class="Constant">&quot;b9 0x2a/imm32\n&quot;</span> <span id="L385" class="LineNr">385 </span> <span class="Delimiter">);</span> <span id="L386" class="LineNr">386 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L387" class="LineNr">387 </span> <span class="Constant">&quot;transform: packing instruction 'b9 0x2a/imm32'\n&quot;</span> <span id="L388" class="LineNr">388 </span> <span class="Constant">&quot;transform: instruction after packing: 'b9 2a 00 00 00'\n&quot;</span> <span id="L389" class="LineNr">389 </span> <span class="Constant">&quot;run: copy imm32 0x0000002a to ECX\n&quot;</span> <span id="L390" class="LineNr">390 </span> <span class="Delimiter">);</span> <span id="L391" class="LineNr">391 </span><span class="Delimiter">}</span> <span id="L392" class="LineNr">392 </span> <span id="L393" class="LineNr">393 </span><span class="Normal">void</span> <a href='032operands.cc.html#L393'>test_pack_silently_ignores_non_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L394" class="LineNr">394 </span> <span class="Special">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L395" class="LineNr">395 </span> transform<span class="Delimiter">(</span> <span id="L396" class="LineNr">396 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L397" class="LineNr">397 </span> <span class="Constant">&quot;b9 foo/imm32\n&quot;</span> <span id="L398" class="LineNr">398 </span> <span class="Delimiter">);</span> <span id="L399" class="LineNr">399 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L400" class="LineNr">400 </span> <span class="Constant">&quot;transform: packing instruction 'b9 foo/imm32'\n&quot;</span> <span id="L401" class="LineNr">401 </span> <span class="Comment">// no change (we're just not printing metadata to the trace)</span> <span id="L402" class="LineNr">402 </span> <span class="Constant">&quot;transform: instruction after packing: 'b9 foo'\n&quot;</span> <span id="L403" class="LineNr">403 </span> <span class="Delimiter">);</span> <span id="L404" class="LineNr">404 </span><span class="Delimiter">}</span> <span id="L405" class="LineNr">405 </span> <span id="L406" class="LineNr">406 </span><span class="Normal">void</span> <a href='032operands.cc.html#L406'>test_pack_flags_bad_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L407" class="LineNr">407 </span> <span class="Special">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L408" class="LineNr">408 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L409" class="LineNr">409 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L410" class="LineNr">410 </span> <span class="Constant">&quot;b9 0xfoo/imm32\n&quot;</span> <span id="L411" class="LineNr">411 </span> <span class="Delimiter">);</span> <span id="L412" class="LineNr">412 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L413" class="LineNr">413 </span> <span class="Constant">&quot;error: not a number: 0xfoo\n&quot;</span> <span id="L414" class="LineNr">414 </span> <span class="Delimiter">);</span> <span id="L415" class="LineNr">415 </span><span class="Delimiter">}</span> <span id="L416" class="LineNr">416 </span> <span id="L417" class="LineNr">417 </span><span class="Normal">void</span> <a href='032operands.cc.html#L417'>test_pack_flags_uppercase_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L418" class="LineNr">418 </span> <span class="Special">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L419" class="LineNr">419 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L420" class="LineNr">420 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L421" class="LineNr">421 </span> <span class="Constant">&quot;b9 0xAb/imm32\n&quot;</span> <span id="L422" class="LineNr">422 </span> <span class="Delimiter">);</span> <span id="L423" class="LineNr">423 </span> <a href='003trace.cc.html#L292'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L424" class="LineNr">424 </span> <span class="Constant">&quot;error: uppercase hex not allowed: 0xAb\n&quot;</span> <span id="L425" class="LineNr">425 </span> <span class="Delimiter">);</span> <span id="L426" class="LineNr">426 </span><span class="Delimiter">}</span> <span id="L427" class="LineNr">427 </span> <span id="L428" class="LineNr">428 </span><span class="SalientComment">//:: helpers</span> <span id="L429" class="LineNr">429 </span> <span id="L430" class="LineNr">430 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L430'>all_hex_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L431" class="LineNr">431 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span id="L432" class="LineNr">432 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span id="L433" class="LineNr">433 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L434" class="LineNr">434 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L435" class="LineNr">435 </span><span class="Delimiter">}</span> <span id="L436" class="LineNr">436 </span> <span id="L437" class="LineNr">437 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L437'>is_hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> word&amp; curr<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L438" class="LineNr">438 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='032operands.cc.html#L447'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> <span id="L439" class="LineNr">439 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L440" class="LineNr">440 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span id="L441" class="LineNr">441 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L442" class="LineNr">442 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">&quot;0123456789abcdef&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span id="L443" class="LineNr">443 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L444" class="LineNr">444 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L445" class="LineNr">445 </span><span class="Delimiter">}</span> <span id="L446" class="LineNr">446 </span> <span id="L447" class="LineNr">447 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L447'>contains_any_operand_metadata</a><span class="Delimiter">(</span><span class="Normal">const</span> word&amp; <a href='011run.cc.html#L127'>word</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L448" class="LineNr">448 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L170'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L127'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span id="L449" class="LineNr">449 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='032operands.cc.html#L49'>Instruction_operands</a></span><span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='011run.cc.html#L127'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> != <span class="Special"><a href='032operands.cc.html#L49'>Instruction_operands</a></span><span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span id="L450" class="LineNr">450 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L451" class="LineNr">451 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L452" class="LineNr">452 </span><span class="Delimiter">}</span> <span id="L453" class="LineNr">453 </span> <span id="L454" class="LineNr">454 </span><span class="Normal">bool</span> has_operand_metadata<span class="Delimiter">(</span><span class="Normal">const</span> line&amp; inst<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; m<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L455" class="LineNr">455 </span> <span class="Normal">bool</span> result = <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L456" class="LineNr">456 </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#L170'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L457" class="LineNr">457 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span id="L458" class="LineNr">458 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L459" class="LineNr">459 </span> <a href='003trace.cc.html#L228'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' has conflicting &quot;</span> &lt;&lt; m &lt;&lt; <span class="Constant">&quot; operands\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L460" class="LineNr">460 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L461" class="LineNr">461 </span> <span class="Delimiter">}</span> <span id="L462" class="LineNr">462 </span> result = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L463" class="LineNr">463 </span> <span class="Delimiter">}</span> <span id="L464" class="LineNr">464 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L465" class="LineNr">465 </span><span class="Delimiter">}</span> <span id="L466" class="LineNr">466 </span> <span id="L467" class="LineNr">467 </span><span class="Normal">bool</span> has_operand_metadata<span class="Delimiter">(</span><span class="Normal">const</span> word&amp; w<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; m<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L468" class="LineNr">468 </span> <span class="Normal">bool</span> result = <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L469" class="LineNr">469 </span> <span class="Normal">bool</span> metadata_found = <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L470" class="LineNr">470 </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#L170'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L471" class="LineNr">471 </span> <span class="Normal">const</span> string&amp; curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L472" class="LineNr">472 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='032operands.cc.html#L49'>Instruction_operands</a></span><span class="Delimiter">.</span>find<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> == <span class="Special"><a href='032operands.cc.html#L49'>Instruction_operands</a></span><span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span> <span id="L473" class="LineNr">473 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata_found<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L474" class="LineNr">474 </span> <a href='003trace.cc.html#L228'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; w<span class="Delimiter">.</span>original &lt;&lt; <span class="Constant">&quot;' has conflicting operand types; it should have only one\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L475" class="LineNr">475 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L476" class="LineNr">476 </span> <span class="Delimiter">}</span> <span id="L477" class="LineNr">477 </span> metadata_found = <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L478" class="LineNr">478 </span> result = <span class="Delimiter">(</span>curr == m<span class="Delimiter">);</span> <span id="L479" class="LineNr">479 </span> <span class="Delimiter">}</span> <span id="L480" class="LineNr">480 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L481" class="LineNr">481 </span><span class="Delimiter">}</span> <span id="L482" class="LineNr">482 </span> <span id="L483" class="LineNr">483 </span><a href='011run.cc.html#L127'>word</a> metadata<span class="Delimiter">(</span><span class="Normal">const</span> line&amp; inst<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; m<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L484" class="LineNr">484 </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#L170'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span id="L485" class="LineNr">485 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_operand_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> <span id="L486" class="LineNr">486 </span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span id="L487" class="LineNr">487 </span> assert<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span> <span id="L488" class="LineNr">488 </span><span class="Delimiter">}</span> <span id="L489" class="LineNr">489 </span> <span id="L490" class="LineNr">490 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L490'>looks_like_hex_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L491" class="LineNr">491 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L492" class="LineNr">492 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span> || s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'+'</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span id="L493" class="LineNr">493 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isdigit<span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span class="Comment">// includes '0x' prefix</span> <span id="L494" class="LineNr">494 </span> <span class="Comment">// End looks_like_hex_int(s) Detectors</span> <span id="L495" class="LineNr">495 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span id="L496" class="LineNr">496 </span><span class="Delimiter">}</span> <span id="L497" class="LineNr">497 </span> <span id="L498" class="LineNr">498 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> line&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L499" class="LineNr">499 </span> ostringstream out<span class="Delimiter">;</span> <span id="L500" class="LineNr">500 </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#L170'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L501" class="LineNr">501 </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">' '</span><span class="Delimiter">;</span> <span id="L502" class="LineNr">502 </span> out &lt;&lt; inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original<span class="Delimiter">;</span> <span id="L503" class="LineNr">503 </span> <span class="Delimiter">}</span> <span id="L504" class="LineNr">504 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> <span id="L505" class="LineNr">505 </span><span class="Delimiter">}</span> <span id="L506" class="LineNr">506 </span> <span id="L507" class="LineNr">507 </span><span class="Normal">int32_t</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L508" class="LineNr">508 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L509" class="LineNr">509 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L449'>contains_uppercase</a><span class="Delimiter">(</span>s<span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L510" class="LineNr">510 </span> <a href='003trace.cc.html#L228'>raise</a> &lt;&lt; <span class="Constant">&quot;uppercase hex not allowed: &quot;</span> &lt;&lt; s &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L511" class="LineNr">511 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L512" class="LineNr">512 </span> <span class="Delimiter">}</span> <span id="L513" class="LineNr">513 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> <span id="L514" class="LineNr">514 </span> in &gt;&gt; std::hex<span class="Delimiter">;</span> <span id="L515" class="LineNr">515 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L516" class="LineNr">516 </span> <span class="Normal">int32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L517" class="LineNr">517 </span> in &gt;&gt; result<span class="Delimiter">;</span> <span id="L518" class="LineNr">518 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> <span id="L519" class="LineNr">519 </span> <a href='003trace.cc.html#L228'>raise</a> &lt;&lt; <span class="Constant">&quot;not a number: &quot;</span> &lt;&lt; s &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L520" class="LineNr">520 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L521" class="LineNr">521 </span> <span class="Delimiter">}</span> <span id="L522" class="LineNr">522 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L523" class="LineNr">523 </span> <span class="Delimiter">}</span> <span id="L524" class="LineNr">524 </span> <span class="Normal">uint32_t</span> uresult = <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L525" class="LineNr">525 </span> in &gt;&gt; uresult<span class="Delimiter">;</span> <span id="L526" class="LineNr">526 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> <span id="L527" class="LineNr">527 </span> <a href='003trace.cc.html#L228'>raise</a> &lt;&lt; <span class="Constant">&quot;not a number: &quot;</span> &lt;&lt; s &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L528" class="LineNr">528 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L529" class="LineNr">529 </span> <span class="Delimiter">}</span> <span id="L530" class="LineNr">530 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span>&lt;<span class="Normal">int32_t</span>&gt;<span class="Delimiter">(</span>uresult<span class="Delimiter">);</span> <span id="L531" class="LineNr">531 </span><span class="Delimiter">}</span> <span id="L532" class="LineNr">532 </span><span class="Delimiter">:(before &quot;End Unit Tests&quot;)</span> <span id="L533" class="LineNr">533 </span><span class="Normal">void</span> <a href='032operands.cc.html#L533'>test_parse_int</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L534" class="LineNr">534 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Constant">&quot;0&quot;</span><span class="Delimiter">));</span> <span id="L535" class="LineNr">535 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Constant">&quot;0x0&quot;</span><span class="Delimiter">));</span> <span id="L536" class="LineNr">536 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Constant">&quot;0x0&quot;</span><span class="Delimiter">));</span> <span id="L537" class="LineNr">537 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">16</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Constant">&quot;10&quot;</span><span class="Delimiter">));</span> <span class="Comment">// hex always</span> <span id="L538" class="LineNr">538 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Constant">&quot;-1&quot;</span><span class="Delimiter">));</span> <span id="L539" class="LineNr">539 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L507'>parse_int</a><span class="Delimiter">(</span><span class="Constant">&quot;0xffffffff&quot;</span><span class="Delimiter">));</span> <span id="L540" class="LineNr">540 </span><span class="Delimiter">}</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->