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<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span>== code
<span id="L2" class="LineNr"> 2 </span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
<span id="L6" class="LineNr"> 6 </span>
<span id="L7" class="LineNr"> 7 </span>write_stderr:  <span class="Comment"># s : (address array byte) -&gt; &lt;void&gt;</span>
<span id="L8" class="LineNr"> 8 </span>  <span class="Comment"># prolog</span>
<span id="L9" class="LineNr"> 9 </span>  55/push-EBP
<span id="L10" class="LineNr">10 </span>  89/copy                         3/mod/direct    5/rm32/EBP   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          4/r32/ESP  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># copy ESP to EBP</span>
<span id="L11" class="LineNr">11 </span>  <span class="Comment"># save registers</span>
<span id="L12" class="LineNr">12 </span>  50/push-EAX
<span id="L13" class="LineNr">13 </span>  51/push-ECX
<span id="L14" class="LineNr">14 </span>  52/push-EDX
<span id="L15" class="LineNr">15 </span>  53/push-EBX
<span id="L16" class="LineNr">16 </span>  <span class="Comment"># write(2/stderr, (data) s+4, (size) *s)</span>
<span id="L17" class="LineNr">17 </span>    <span class="Comment"># fd = 2 (stderr)</span>
<span id="L18" class="LineNr">18 </span>  bb/copy                        <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>              2/imm32           <span class="Comment"># copy to EBX</span>
<span id="L19" class="LineNr">19 </span>    <span class="Comment"># x = s+4</span>
<span id="L20" class="LineNr">20 </span>  8b/copy                         1/mod/*+disp8   4/rm32/SIB    5/base/EBP  4/index/none <span class="Delimiter"> . </span>          1/r32/ECX   8/disp8        <span class="Delimiter"> . </span>                <span class="Comment"># copy *(EBP+8) to ECX</span>
<span id="L21" class="LineNr">21 </span>  81          0/subop/add         3/mod/direct    1/rm32/ECX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>              4/imm32           <span class="Comment"># add to ECX</span>
<span id="L22" class="LineNr">22 </span>    <span class="Comment"># size = *s</span>
<span id="L23" class="LineNr">23 </span>  8b/copy                         1/mod/*+disp8   4/rm32/SIB    5/base/EBP  4/index/none <span class="Delimiter"> . </span>          2/r32/EDX   8/disp8        <span class="Delimiter"> . </span>                <span class="Comment"># copy *(EBP+8) to EDX</span>
<span id="L24" class="LineNr">24 </span>  8b/copy                         0/mod/indirect  2/rm32/EDX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          2/r32/EDX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># copy *EDX to EDX</span>
<span id="L25" class="LineNr">25 </span>    <span class="Comment"># call write()</span>
<span id="L26" class="LineNr">26 </span>  b8/copy                        <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>              4/imm32/write     <span class="Comment"># copy to EAX</span>
<span id="L27" class="LineNr">27 </span>  cd/syscall  0x80/imm8
<span id="L28" class="LineNr">28 </span>  <span class="Comment"># restore registers</span>
<span id="L29" class="LineNr">29 </span>  5b/pop-to-EBX
<span id="L30" class="LineNr">30 </span>  5a/pop-to-EDX
<span id="L31" class="LineNr">31 </span>  59/pop-to-ECX
<span id="L32" class="LineNr">32 </span>  58/pop-to-EAX
<span id="L33" class="LineNr">33 </span>  <span class="Comment"># end</span>
<span id="L34" class="LineNr">34 </span>  89/copy                         3/mod/direct    4/rm32/ESP   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          5/r32/EBP  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                <span class="Comment"># copy EBP to ESP</span>
<span id="L35" class="LineNr">35 </span>  5d/pop-to-EBP
<span id="L36" class="LineNr">36 </span>  c3/return
<span id="L37" class="LineNr">37 </span>
<span id="L38" class="LineNr">38 </span><span class="Comment"># vim&#0058;ft=subx:nowrap:tw&amp;</span>
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