https://github.com/akkartik/mu/blob/main/124next-token.subx 
   1 # Some tokenization primitives.
   2 
   3 == code
   4 #   instruction                     effective address                                                   register    displacement    immediate
   5 # . op          subop               mod             rm32          base        index         scale       r32
   6 # . 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
   7 
   8 # extract the next run of characters that are different from a given 'delimiter' (skipping multiple delimiters if necessary)
   9 # on reaching end of file, return an empty interval
  10 next-token-from-slice:  # start: (addr byte), end: (addr byte), delimiter: byte, out: (addr slice)
  11     # . prologue
  12     55/push-ebp
  13     89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
  14     # . save registers
  15     50/push-eax
  16     51/push-ecx
  17     52/push-edx
  18     57/push-edi
  19     # ecx = end
  20     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           1/r32/ecx   0xc/disp8       .                 # copy *(ebp+12) to ecx
  21     # edx = delimiter
  22     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           2/r32/edx   0x10/disp8      .                 # copy *(ebp+16) to edx
  23     # edi = out
  24     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           7/r32/edi   0x14/disp8      .                 # copy *(ebp+20) to edi
  25     # eax = skip-chars-matching-in-slice(start, end, delimiter)
  26     # . . push args
  27     52/push-edx
  28     51/push-ecx
  29     ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
  30     # . . call
  31     e8/call  skip-chars-matching-in-slice/disp32
  32     # . . discard args
  33     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
  34     # out->start = eax
  35     89/copy                         0/mod/indirect  7/rm32/edi    .           .             .           0/r32/eax   .               .                 # copy eax to *edi
  36     # eax = skip-chars-not-matching-in-slice(eax, end, delimiter)
  37     # . . push args
  38     52/push-edx
  39     51/push-ecx
  40     50/push-eax
  41     # . . call
  42     e8/call  skip-chars-not-matching-in-slice/disp32
  43     # . . discard args
  44     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
  45     # out->end = eax
  46     89/copy                         1/mod/*+disp8   7/rm32/edi    .           .             .           0/r32/eax   4/disp8         .                 # copy eax to *(edi+4)
  47     # . restore registers
  48     5f/pop-to-edi
  49     5a/pop-to-edx
  50     59/pop-to-ecx
  51     58/pop-to-eax
  52     # . epilogue
  53     89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
  54     5d/pop-to-ebp
  55     c3/return
  56 
  57 test-next-token-from-slice:
  58     # . prologue
  59     55/push-ebp
  60     89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
  61     # (eax..ecx) = "  ab"
  62     b8/copy-to-eax  "  ab"/imm32
  63     8b/copy                         0/mod/indirect  0/rm32/eax    .           .             .           1/r32/ecx   .               .                 # copy *eax to ecx
  64     8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx   .           1/r32/ecx   4/disp8         .                 # copy eax+ecx+4 to ecx
  65     05/add-to-eax  4/imm32
  66     # var out/edi: slice
  67     68/push  0/imm32/end
  68     68/push  0/imm32/start
  69     89/copy                         3/mod/direct    7/rm32/edi    .           .             .           4/r32/esp   .               .                 # copy esp to edi
  70     # next-token-from-slice(eax, ecx, 0x20/space, out)
  71     # . . push args
  72     57/push-edi
  73     68/push  0x20/imm32
  74     51/push-ecx
  75     50/push-eax
  76     # . . call
  77     e8/call  next-token-from-slice/disp32
  78     # . . discard args
  79     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0x10/imm32        # add to esp
  80     # out->start should be at the 'a'
  81     # . check-ints-equal(out->start - in->start, 2, msg)
  82     # . . push args
  83     68/push  "F - test-next-token-from-slice: start"/imm32
  84     68/push  2/imm32
  85     # . . push out->start - in->start
  86     8b/copy                         0/mod/indirect  7/rm32/edi    .           .             .           1/r32/ecx   .               .                 # copy *edi to ecx
  87     2b/subtract                     3/mod/direct    0/rm32/eax    .           .             .           1/r32/ecx   .               .                 # subtract eax from ecx
  88 
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<span class="Comment">//: Arithmetic primitives</span>

<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
ADD<span class="Delimiter">,</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;add&quot;</span><span class="Delimiter">,</span> ADD<span class="Delimiter">);</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
case ADD: <span class="Delimiter">{</span>
  <span class="Comment">// primary goal of these checks is to forbid address arithmetic</span>
  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    if <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
      raise_error &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter&q
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<a href='https://github.com/akkartik/mu/blob/main/118parse-hex-int.subx'>https://github.com/akkartik/mu/blob/main/118parse-hex-int.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="subxComment"># some utilities for converting numbers from hex</span>
<span id="L2" class="LineNr">  2 </span><span class="subxComment"># lowercase letters only for now</span>
<span id="L3" class="LineNr">  3 </span>
<span id="L4" class="LineNr">  4 </span>== code
<span id="L5" class="LineNr">  5 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
<span id="L6" class="LineNr">  6 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
<span id="L7" class="LineNr">  7 </span><span class="subxS1Comment"># . 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="L8" class="LineNr">  8 </span>
<span id="L9" class="LineNr">  9 </span><span class="subxFunction">hex-int?</span>:  <span class="subxComment"># in: (addr slice) -&gt; result/eax: boolean</span>
<span id="L10" class="LineNr"> 10 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L11" class="LineNr"> 11 </span>    55/push-ebp
<span id="L12" class="LineNr"> 12 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
<span id="L13" class="LineNr"> 13 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L14" class="LineNr"> 14 </span>    51/push-ecx
<span id="L15" class="LineNr"> 15 </span>    52/push-edx
<span id="L16" class="LineNr"> 16 </span>    53/push-ebx
<span id="L17" class="LineNr"> 17 </span>    <span class="subxComment"># ecx = s</span>
<span id="L18" class="LineNr"> 18 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to ecx</span>
<span id="L19" class="LineNr"> 19 </span>    <span class="subxComment"># edx = s-&gt;end</span>
<span id="L20" class="LineNr"> 20 </span>    8b/copy                         1/mod/*+disp8   1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ecx+4) to edx</span>
<span id="L21" class="LineNr"> 21 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = s-&gt;start</span>
<span id="L22" class="LineNr"> 22 </span>    8b/copy                         0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *ecx to ecx</span>
<span id="L23" class="LineNr"> 23 </span>    <span class="subxComment"># if s is empty return false</span>
<span id="L24" class="LineNr"> 24 </span>    b8/copy-to-eax  0/imm32/false
<span id="L25" class="LineNr"> 25 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
<span id="L26" class="LineNr"> 26 </span>    73/jump-if-addr&gt;=  $hex-int?:end/disp8
<span id="L27" class="LineNr"> 27 </span>    <span class="subxComment"># skip past leading '-'</span>
<span id="L28" class="LineNr"> 28 </span>    <span class="subxS1Comment"># . if (*curr == '-') ++curr</span>
<span id="L29" class="LineNr"> 29 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
<span id="L30" class="LineNr"> 30 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/BL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to BL</span>
<span id="L31" class="LineNr"> 31 </span>    81          7/subop/compare     3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x2d/imm32/-      <span class="subxComment"># compare ebx</span>
<span id="L32" class="LineNr"> 32 </span>    75/jump-if-!=  $hex-int?:initial-0/disp8
<span id="L33" class="LineNr"> 33 </span>    <span class="subxS1Comment"># . ++curr</span>
<span id="L34" class="LineNr"> 34 </span>    41/increment-ecx
<span id="L35" class="LineNr"> 35 </span>    <span class="subxComment"># skip past leading '0x'</span>
<span id="L36" class="LineNr"> 36 </span><span class="Constant">$hex-int?:initial-0</span>:
<span id="L37" class="LineNr"> 37 </span>    <span class="subxS1Comment"># . if (*curr != '0') jump to loop</span>
<span id="L38" class="LineNr"> 38 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
<span id="L39" class="LineNr"> 39 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/BL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to BL</span>
<span id="L40" class="LineNr"> 40 </span>    81          7/subop/compare     3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x30/imm32/0      <span class="subxComment"># compare ebx</span>
<span id="L41" class="LineNr"> 41 </span>    75/jump-if-!=  $hex-int?:<span class="Constant">loop</span>/disp8
<span id="L42" class="LineNr"> 42 </span>    <span class="subxS1Comment"># . ++curr</span>
<span id="L43" class="LineNr"> 43 </span>    41/increment-ecx
<span id="L44" class="LineNr"> 44 </span><span class="Constant">$hex-int?:initial-0x</span>:
<span id="L45" class="LineNr"> 45 </span>    <span class="subxS1Comment"># . if (curr &gt;= in-&gt;end) return true</span>
<span id="L46" class="LineNr"> 46 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
<span id="L47" class="LineNr"> 47 </span>    73/jump-if-addr&gt;=  $hex-int?:true/disp8
<span id="L48" class="LineNr"> 48 </span>    <span class="subxS1Comment"># . if (*curr != 'x') jump to loop  # the previous '0' is still valid so doesn't need to be checked again</span>
<span id="L49" class="LineNr"> 49 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
<span id="L50" class="LineNr"> 50 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/BL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to BL</span>
<span id="L51" class="LineNr"> 51 </span>    81          7/subop/compare     3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x78/imm32/x      <span class="subxComment"># compare ebx</span>
<span id="L52" class="LineNr"> 52 </span>    75/jump-if-!=  $hex-int?:<span class="Constant">loop</span>/disp8
<span id="L53" class="LineNr"> 53 </span>    <span class="subxS1Comment"># . ++curr</span>
<span id="L54" class="LineNr"> 54 </span>    41/increment-ecx
<span id="L55" class="LineNr"> 55 </span><span class="Constant">$hex-int?:loop</span>:
<span id="L56" class="LineNr"> 56 </span>    <span class="subxComment"># if (curr &gt;= in-&gt;end) return true</span>
<span id="L57" class="LineNr"> 57 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
<span id="L58" class="LineNr"> 58 </span>    73/jump-if-addr&gt;=  $hex-int?:true/disp8
<span id="L59" class="LineNr"> 59 </span>    <span class="subxComment"># var eax: boolean = hex-digit?(*curr)</span>
<span id="L60" class="LineNr"> 60 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L61" class="LineNr"> 61 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to AL</span>
<span id="L62" class="LineNr"> 62 </span>    50/push-eax
<span id="L63" class="LineNr"> 63 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L64" class="LineNr"> 64 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>hex-digit?</a>/disp32
<span id="L65" class="LineNr"> 65 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L66" class="LineNr"> 66 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
<span id="L67" class="LineNr"> 67 </span>    <span class="subxComment"># if (eax == false) return false</span>
<span id="L68" class="LineNr"> 68 </span>    3d/compare-eax-and  0/imm32/false
<span id="L69" class="LineNr"> 69 </span>    74/jump-if-=  $hex-int?:end/disp8
<span id="L70" class="LineNr"> 70 </span>    <span class="subxComment"># ++curr</span>
<span id="L71" class="LineNr"> 71 </span>    41/increment-ecx
<span id="L72" class="LineNr"> 72 </span>    <span class="subxComment"># loop</span>
<span id="L73" class="LineNr"> 73 </span>    eb/jump  $hex-int?:<span class="Constant">loop</span>/disp8
<span id="L74" class="LineNr"> 74 </span><span class="Constant">$hex-int?:true</span>:
<span id="L75" class="LineNr"> 75 </span>    <span class="subxComment"># return true</span>
<span id="L76" class="LineNr"> 76 </span>    b8/copy-to-eax  1/imm32/true
<span id="L77" class="LineNr"> 77 </span><span class="Constant">$hex-int?:end</span>:
<span id="L78" class="LineNr"> 78 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L79" class="LineNr"> 79 </span>    5b/pop-to-ebx
<span id="L80" class="LineNr"> 80 </span>    5a/pop-to-edx
<span id="L81" class="LineNr"> 81 </span>    59/pop-to-ecx
<span id="L82" class="LineNr"> 82 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L83" class="LineNr"> 83 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
<span id="L84" class="LineNr"> 84 </span>    5d/pop-to-ebp
<span id="L85" class="LineNr"> 85 </span>    c3/return
<span id="L86" class="LineNr"> 86 </span>
<span id="L87" class="LineNr"> 87 </span><span class="subxTest">test-hex-int</span>:
<span id="L88" class="LineNr"> 88 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L89" class="LineNr"> 89 </span>    55/push-ebp
<span id="L90" class="LineNr"> 90 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
<span id="L91" class="LineNr"> 91 </span>    <span class="subxComment"># (eax..ecx) = &quot;34&quot;</span>
<span id="L92" class="LineNr"> 92 </span>    b8/copy-to-eax  <span class="Constant">&quot;34&quot;</span>/imm32
<span id="L93" class="LineNr"> 93 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
<span id="L94" class="LineNr"> 94 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
<span id="L95" class="LineNr"> 95 </span>    05/add-to-eax  4/imm32
<span id="L96" class="LineNr"> 96 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
<span id="L97" class="LineNr"> 97 </span>    51/push-ecx
<span id="L98" class="LineNr"> 98 </span>    50/push-eax
<span id="L99" class="LineNr"> 99 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
<span id="L100" class="LineNr">100 </span>    <span class="subxComment"># eax = hex-int?(slice)</span>
<span id="L101" class="LineNr">101 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L102" class="LineNr">102 </span>    51/push-ecx
<span id="L103" class="LineNr">103 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L104" class="LineNr">104 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>hex-int?</a>/disp32
<span id="L105" class="LineNr">105 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L106" class="LineNr">106 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
<span id="L107" class="LineNr">107 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
<span id="L108" class="LineNr">108 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L109" class="LineNr">109 </span>    68/push  <span class="Constant">&quot;F - test-hex-int&quot;</span>/imm32
<span id="L110" class="LineNr">110 </span>    68/push  1/imm32/true
<span id="L111" class="LineNr">111 </span>    50/push-eax
<span id="L112" class="LineNr">112 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L113" class="LineNr">113 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
<span id="L114" class="LineNr">114 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L115" class="LineNr">115 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
<span id="L116" class="LineNr">116 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L117" class="LineNr">117 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
<span id="L118" class="LineNr">118 </span>    5d/pop-to-ebp
<span id="L119" class="LineNr">119 </span>    c3/return
<span id="L120" class="LineNr">120 </span>
<span id="L121" class="LineNr">121 </span><span class="subxTest">test-hex-int-handles-letters</span>:
<span id="L122" class="LineNr">122 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L123" class="LineNr">123 </span>    55/push-ebp
<span id="L124" class="LineNr">124 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
<span id="L125" class="LineNr">125 </span>    <span class="subxComment"># (eax..ecx) = &quot;34a&quot;</span>
<span id="L126" class="LineNr">126 </span>    b8/copy-to-eax  <span class="Constant">&quot;34a&quot;</span>/imm32
<span id="L127" class="LineNr">127 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
<span id="L128" class="LineNr">128 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
<span id="L129" class="LineNr">129 </span>    05/add-to-eax  4/imm32
<span id="L130" class="LineNr">130 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
<span id="L131" class="LineNr">131 </span>    51/push-ecx
<span id="L132" class="LineNr">132 </span>    50/push-eax
<span id="L133" class="LineNr">133 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
<span id="L134" class="LineNr">134 </span>    <span class="subxComment"># eax = hex-int?(slice)</span>
<span id="L135" class="LineNr">135 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L136" class="LineNr">136 </span>    51/push-ecx
<span id="L137" class="LineNr">137 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L138" class="LineNr">138 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>hex-int?</a>/disp32
<span id="L139" class="LineNr">139 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L140" class="LineNr">140 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
<span id="L141" class="LineNr">141 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
<span id="L142" class="LineNr">142 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L143" class="LineNr">143 </span>    68/push  <span class="Constant">&quot;F - test-hex-int-handles-letters&quot;</span>/imm32
<span id="L144" class="LineNr">144 </span>    68/push  1/imm32/true
<span id="L145" class="LineNr">145 </span>    50/push-eax
<span id="L146" class="LineNr">146 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L147" class="LineNr">147 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
<span id="L148" class="LineNr">148 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L149" class="LineNr">149 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
<span id="L150" class="LineNr">150 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L151" class="LineNr">151 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
<span id="L152" class="LineNr">152 </span>    5d/pop-to-ebp
<span id="L153" class="LineNr">153 </span>    c3/return
<span id="L154" class="LineNr">154 </span>
<span id="L155" class="LineNr">155 </span><span class="subxTest">test-hex-int-with-trailing-char</span>:
<span id="L156" class="LineNr">156 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L157" class="LineNr">157 </span>    55/push-ebp
<span id="L158" class="LineNr">158 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
<span id="L159" class="LineNr">159 </span>    <span class="subxComment"># (eax..ecx) = &quot;34q&quot;</span>
<span id="L160" class="LineNr">160 </span>    b8/copy-to-eax  <span class="Constant">&quot;34q&quot;</span>/imm32
<span id="L161" class="LineNr">161 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
<span id="L162" class="LineNr">162 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
<span id="L163" class="LineNr">163 </span>    05/add-to-eax  4/imm32
<span id="L164" class="LineNr">164 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
<span id="L165" class="LineNr">165 </span>    51/push-ecx
<span id="L166" class="LineNr">166 </span>    50/push-eax
<span id="L167" class="LineNr">167 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
<span id="L168" class="LineNr">168 </span>    <span class="subxComment"># eax = hex-int?(slice)</span>
<span id="L169" class="LineNr">169 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L170" class="LineNr">170 </span>    51/push-ecx
<span id="L171" class="LineNr">171 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L172" class="LineNr">172 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>hex-int?</a>/disp32
<span id="L173" class="LineNr">173 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L174" class="LineNr">174 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
<span id="L175" class="LineNr">175 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
<span id="L176" class="LineNr">176 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L177" class="LineNr">177 </span>    68/push  <span class="Constant">&quot;F - test-hex-int-with-trailing-char&quot;</span>/imm32
<span id="L178" class="LineNr">178 </span>    68/push  0/imm32/false
<span id="L179" class="LineNr">179 </span>    50/push-eax
<span id="L180" class="LineNr">180 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L181" class="LineNr">181 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
<span id="L182" class="LineNr">182 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L183" class="LineNr">183 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
<span id="L184" class="LineNr">184 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L185" class="LineNr">185 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
<span id="L186" class="LineNr">186 </span>    5d/pop-to-ebp
<span id="L187" class="LineNr">187 </span>    c3/return
<span id="L188" class="LineNr">188 </span>
<span id="L189" class="LineNr">189 </span><span class="subxTest">test-hex-int-with-leading-char</span>:
<span id="L190" class="LineNr">190 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L191" class="LineNr">191 </span>    55/push-ebp
<span id="L192" class="LineNr">192 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
<span id="L193" class="LineNr">193 </span>    <span class="subxComment"># (eax..ecx) = &quot;q34&quot;</span>
<span id="L194" class="LineNr">194 </span>    b8/copy-to-eax  <span class="Constant">&quot;q34&quot;</span>/imm32
<span id="L195" class="LineNr">195 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
<span id="L196" class="LineNr">196 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
<span id="L197" class="LineNr">197 </span>    05/add-to-eax  4/imm32
<span id="L198" class="LineNr">198 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
<span id="L199" class="LineNr">199 </span>    51/push-ecx
<span id="L200" class="LineNr">200 </span>    50/push-eax
<span id="L201" class="LineNr">201 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
<span id="L202" class="LineNr">202 </span>    <span class="subxComment"># eax = hex-int?(slice)</span>
<span id="L203" class="LineNr">203 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L204" class="LineNr">204 </span>    51/push-ecx
<span id="L205" class="LineNr">205 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L206" class="LineNr">206 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>hex-int?</a>/disp32
<span id="L207" class="LineNr">207 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L208" class="LineNr">208 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
<span id="L209" class="LineNr">209 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
<span id="L210" class="LineNr">210 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L211" class="LineNr">211 </span>    68/push  <span class="Constant">&quot;F - test-hex-int-with-leading-char&quot;</span>/imm32
<span id="L212" class="LineNr">212 </span>    68/push  0/imm32/false
<span id="L213" class="LineNr">213 </span>    50/push-eax
<span id="L214" class="LineNr">214 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L215" class="LineNr">215 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
<span id="L216" class="LineNr">216 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L217" class="LineNr">217 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
<span id="L218" class="LineNr">218 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L219" class="LineNr">219 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
<span id="L220" class="LineNr">220 </span>    5d/pop-to-ebp
<span id="L221" class="LineNr">221 </span>    c3/return
<span id="L222" class="LineNr">222 </span>
<span id="L223" class="LineNr">223 </span><span class="subxTest">test-hex-int-empty</span>:
<span id="L224" class="LineNr">224 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L225" class="LineNr">225 </span>    55/push-ebp
<span id="L226" class="LineNr">226 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
<span id="L227" class="LineNr">227 </span>    <span class="subxComment"># var slice/ecx: slice = &quot;&quot;</span>
<span id="L228" class="LineNr">228 </span>    68/push  0/imm32
<span id="L229" class="LineNr">229 </span>    68/push  0/imm32
<span id="L230" class="LineNr">230 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
<span id="L231" class="LineNr">231 </span>    <span class="subxComment"># eax = hex-int?(slice)</span>
<span id="L232" class="LineNr">232 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L233" class="LineNr">233 </span>    51/push-ecx
<span id="L234" class="LineNr">234 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L235" class="LineNr">235 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>hex-int?</a>/disp32
<span id="L236" class="LineNr">236 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L237" class="LineNr">237 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
<span id="L238" class="LineNr">238 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
<span id="L239" class="LineNr">239 </span>    <span class="subxS2Comment"># . . push args</span>
<span id="L240" class="LineNr">240 </span>    68/push  <span class="Constant">&quot;F - test-hex-int-empty&quot;</span>/imm32
<span id="L241" class="LineNr">241 </span>    68/push  0/imm32/false
<span id="L242" class="LineNr">242 </span>    50/push-eax
<span id="L243" class="LineNr">243 </span>    <span class="subxS2Comment"># . . call</span>
<span id="L244" class="LineNr">244 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
<span id="L245" class="LineNr">245 </span>    <span class="subxS2Comment"># . . discard args</span>
<span id="L246" class="LineNr">246 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
<span id="L247" class="LineNr">247 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L248" class="LineNr">248 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>