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authorKartik Agaram <vc@akkartik.com>2021-03-23 17:31:08 -0700
committerKartik Agaram <vc@akkartik.com>2021-03-23 17:31:08 -0700
commit3350c34a74844e21ea69077e01efff3bae64bdcd (patch)
treefa06ba58542297d1cff6b78958d4547a40a25d21 /html/linux/114error.subx.html
parent62a244211024a8367332541c571621883c05bcce (diff)
downloadmu-3350c34a74844e21ea69077e01efff3bae64bdcd.tar.gz
.
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+<!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 - linux/114error.subx</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
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+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.SpecialChar { color: #d70000; }
+.subxComment { color: #005faf; }
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+.subxFunction { color: #af5f00; text-decoration: underline; }
+.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/linux/114error.subx'>https://github.com/akkartik/mu/blob/main/linux/114error.subx</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Print an error message and exit.</span>
+<span id="L2" class="LineNr"> 2 </span>
+<span id="L3" class="LineNr"> 3 </span>== code
+<span id="L4" class="LineNr"> 4 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
+<span id="L5" class="LineNr"> 5 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L6" class="LineNr"> 6 </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="L7" class="LineNr"> 7 </span>
+<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># write(out, &quot;Error: &quot;+msg+&quot;\n&quot;) then stop(ed, 1)</span>
+<span id="L9" class="LineNr"> 9 </span><span class="subxFunction">error</span>:  <span class="subxComment"># ed: (addr exit-descriptor), out: fd or (addr stream byte), msg: (addr array byte)</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="subxComment"># write(out, &quot;Error: &quot;)</span>
+<span id="L14" class="LineNr">14 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L15" class="LineNr">15 </span>    68/push  <span class="Constant">&quot;Error: &quot;</span>/imm32
+<span id="L16" class="LineNr">16 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
+<span id="L17" class="LineNr">17 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L18" class="LineNr">18 </span>    e8/call  <a href='108write.subx.html#L24'>write</a>/disp32
+<span id="L19" class="LineNr">19 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L20" class="LineNr">20 </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>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L21" class="LineNr">21 </span>    <span class="subxComment"># write(out, msg)</span>
+<span id="L22" class="LineNr">22 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L23" class="LineNr">23 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0x10/disp8     <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+16)</span>
+<span id="L24" class="LineNr">24 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
+<span id="L25" class="LineNr">25 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L26" class="LineNr">26 </span>    e8/call  <a href='108write.subx.html#L24'>write</a>/disp32
+<span id="L27" class="LineNr">27 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L28" class="LineNr">28 </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>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L29" class="LineNr">29 </span>    <span class="subxComment"># write(out, &quot;\n&quot;)</span>
+<span id="L30" class="LineNr">30 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L31" class="LineNr">31 </span>    68/push  <span class="SpecialChar"><a href='102test.subx.html#L82'>Newline</a></span>/imm32
+<span id="L32" class="LineNr">32 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
+<span id="L33" class="LineNr">33 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L34" class="LineNr">34 </span>    e8/call  <a href='108write.subx.html#L24'>write</a>/disp32
+<span id="L35" class="LineNr">35 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L36" class="LineNr">36 </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>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L37" class="LineNr">37 </span>    <span class="subxComment"># stop(ed, 1)</span>
+<span id="L38" class="LineNr">38 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L39" class="LineNr">39 </span>    68/push  1/imm32
+<span id="L40" class="LineNr">40 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+8)</span>
+<span id="L41" class="LineNr">41 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L42" class="LineNr">42 </span>    e8/call  <a href='110stop.subx.html#L92'>stop</a>/disp32
+<span id="L43" class="LineNr">43 </span>    <span class="subxComment"># should never get past this point</span>
+<span id="L44" class="LineNr">44 </span><span class="Constant">$error:dead-end</span>:
+<span id="L45" class="LineNr">45 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L46" class="LineNr">46 </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="L47" class="LineNr">47 </span>    5d/pop-to-ebp
+<span id="L48" class="LineNr">48 </span>    c3/return
+<span id="L49" class="LineNr">49 </span>
+<span id="L50" class="LineNr">50 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->