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authorKartik Agaram <vc@akkartik.com>2020-01-01 17:23:29 -0800
committerKartik Agaram <vc@akkartik.com>2020-01-01 17:23:29 -0800
commit113bae7311b63e55e55160970718d19bfeeb56c3 (patch)
treed2468b58470e173329c7ef6e8da496c2f768b037 /html/examples/ex7.subx.html
parent1b050736eea04323e09e5e8e7499c33cee1899d0 (diff)
downloadmu-113bae7311b63e55e55160970718d19bfeeb56c3.tar.gz
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+++ /dev/null
@@ -1,159 +0,0 @@
-<!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 - examples/ex7.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">
-<!--
-pre { font-family: monospace; color: #000000; background-color: #c6c6c6; }
-body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
-a { color:inherit; }
-* { font-size:12pt; font-size: 1em; }
-.subxComment { color: #005faf; }
-.subxS2Comment { color: #8a8a8a; }
-.LineNr { }
-.subxS1Comment { color: #0000af; }
-.SpecialChar { color: #d70000; }
-.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/master/examples/ex7.subx'>https://github.com/akkartik/mu/blob/master/examples/ex7.subx</a>
-<pre id='vimCodeElement'>
-<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Example showing file syscalls.</span>
-<span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span>
-<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># Create a file, open it for writing, write a character to it, close it, open</span>
-<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># it for reading, read a character from it, close it, delete it, and return</span>
-<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># the character read.</span>
-<span id="L6" class="LineNr"> 6 </span><span class="subxComment">#</span>
-<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># To run:</span>
-<span id="L8" class="LineNr"> 8 </span><span class="subxComment">#   $ ./subx translate init.linux examples/ex7.subx -o examples/ex7</span>
-<span id="L9" class="LineNr"> 9 </span><span class="subxComment">#   $ ./subx run examples/ex7</span>
-<span id="L10" class="LineNr">10 </span><span class="subxComment"># Expected result:</span>
-<span id="L11" class="LineNr">11 </span><span class="subxComment">#   $ echo $?</span>
-<span id="L12" class="LineNr">12 </span><span class="subxComment">#   97</span>
-<span id="L13" class="LineNr">13 </span>
-<span id="L14" class="LineNr">14 </span>== code
-<span id="L15" class="LineNr">15 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
-<span id="L16" class="LineNr">16 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
-<span id="L17" class="LineNr">17 </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="L18" class="LineNr">18 </span>
-<span id="L19" class="LineNr">19 </span><span class="SpecialChar">Entry</span>:
-<span id="L20" class="LineNr">20 </span>    <span class="subxComment"># creat(Filename)</span>
-<span id="L21" class="LineNr">21 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L94'>Filename</a></span>/imm32
-<span id="L22" class="LineNr">22 </span>    b9/copy-to-ecx  0x180/imm32/fixed-perms
-<span id="L23" class="LineNr">23 </span>    e8/call  syscall_creat/disp32
-<span id="L24" class="LineNr">24 </span>
-<span id="L25" class="LineNr">25 </span>    <span class="subxComment"># stream = open(Filename, O_WRONLY, 0)  # we can't use 'fd' because it looks like a hex byte</span>
-<span id="L26" class="LineNr">26 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L94'>Filename</a></span>/imm32
-<span id="L27" class="LineNr">27 </span>    b9/copy-to-ecx  1/imm32/wronly
-<span id="L28" class="LineNr">28 </span>    ba/copy-to-edx  0x180/imm32/fixed-perms
-<span id="L29" class="LineNr">29 </span>    e8/call  syscall_open/disp32
-<span id="L30" class="LineNr">30 </span>    <span class="subxComment"># save stream</span>
-<span id="L31" class="LineNr">31 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L88'>Stream</a></span>/imm32
-<span id="L32" class="LineNr">32 </span>    89/copy                         0/mod/indirect  3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy eax to *ebx</span>
-<span id="L33" class="LineNr">33 </span>
-<span id="L34" class="LineNr">34 </span>    <span class="subxComment"># write(Stream, &quot;a&quot;, 1)</span>
-<span id="L35" class="LineNr">35 </span>    <span class="subxS1Comment"># . load stream</span>
-<span id="L36" class="LineNr">36 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L88'>Stream</a></span>/imm32
-<span id="L37" class="LineNr">37 </span>    8b/copy                         0/mod/indirect  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"># copy *ebx to ebx</span>
-<span id="L38" class="LineNr">38 </span>    <span class="subxS1Comment"># .</span>
-<span id="L39" class="LineNr">39 </span>    b9/copy-to-ecx  <span class="SpecialChar"><a href='ex7.subx.html#L90'>A</a></span>/imm32
-<span id="L40" class="LineNr">40 </span>    ba/copy-to-edx  1/imm32/size
-<span id="L41" class="LineNr">41 </span>    e8/call  syscall_write/disp32
-<span id="L42" class="LineNr">42 </span>
-<span id="L43" class="LineNr">43 </span>    <span class="subxComment"># close(Stream)</span>
-<span id="L44" class="LineNr">44 </span>    <span class="subxS1Comment"># . load stream</span>
-<span id="L45" class="LineNr">45 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L88'>Stream</a></span>/imm32
-<span id="L46" class="LineNr">46 </span>    8b/copy                         0/mod/indirect  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"># copy *ebx to ebx</span>
-<span id="L47" class="LineNr">47 </span>    <span class="subxS1Comment"># .</span>
-<span id="L48" class="LineNr">48 </span>    e8/call  syscall_close/disp32
-<span id="L49" class="LineNr">49 </span>
-<span id="L50" class="LineNr">50 </span>    <span class="subxComment"># stream = open(Filename, O_RDONLY, 0)</span>
-<span id="L51" class="LineNr">51 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L94'>Filename</a></span>/imm32
-<span id="L52" class="LineNr">52 </span>    b9/copy-to-ecx  0/imm32/rdonly
-<span id="L53" class="LineNr">53 </span>    ba/copy-to-edx  0x180/imm32/fixed-perms
-<span id="L54" class="LineNr">54 </span>    e8/call  syscall_open/disp32
-<span id="L55" class="LineNr">55 </span>    <span class="subxS1Comment"># . save Stream</span>
-<span id="L56" class="LineNr">56 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L88'>Stream</a></span>/imm32
-<span id="L57" class="LineNr">57 </span>    89/copy                         0/mod/indirect  3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy eax to *ebx</span>
-<span id="L58" class="LineNr">58 </span>
-<span id="L59" class="LineNr">59 </span>    <span class="subxComment"># read(Stream, B, 1)</span>
-<span id="L60" class="LineNr">60 </span>    <span class="subxS1Comment"># . load stream</span>
-<span id="L61" class="LineNr">61 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L88'>Stream</a></span>/imm32
-<span id="L62" class="LineNr">62 </span>    8b/copy                         0/mod/indirect  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"># copy *ebx to ebx</span>
-<span id="L63" class="LineNr">63 </span>    <span class="subxS1Comment"># .</span>
-<span id="L64" class="LineNr">64 </span>    b9/copy-to-ecx  <span class="SpecialChar"><a href='ex7.subx.html#L92'>B</a></span>/imm32
-<span id="L65" class="LineNr">65 </span>    ba/copy-to-edx  1/imm32/size
-<span id="L66" class="LineNr">66 </span>    e8/call  syscall_read/disp32
-<span id="L67" class="LineNr">67 </span>
-<span id="L68" class="LineNr">68 </span>    <span class="subxComment"># close(Stream)</span>
-<span id="L69" class="LineNr">69 </span>    <span class="subxS1Comment"># . load stream</span>
-<span id="L70" class="LineNr">70 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L88'>Stream</a></span>/imm32
-<span id="L71" class="LineNr">71 </span>    8b/copy                         0/mod/indirect  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"># copy *ebx to ebx</span>
-<span id="L72" class="LineNr">72 </span>    <span class="subxComment">#</span>
-<span id="L73" class="LineNr">73 </span>    e8/call  syscall_close/disp32
-<span id="L74" class="LineNr">74 </span>
-<span id="L75" class="LineNr">75 </span>    <span class="subxComment"># unlink(filename)</span>
-<span id="L76" class="LineNr">76 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L94'>Filename</a></span>/imm32
-<span id="L77" class="LineNr">77 </span>    e8/call  syscall_unlink/disp32
-<span id="L78" class="LineNr">78 </span>
-<span id="L79" class="LineNr">79 </span>    <span class="subxComment"># exit(b)</span>
-<span id="L80" class="LineNr">80 </span>    <span class="subxS1Comment"># . load b</span>
-<span id="L81" class="LineNr">81 </span>    bb/copy-to-ebx  <span class="SpecialChar"><a href='ex7.subx.html#L92'>B</a></span>/imm32
-<span id="L82" class="LineNr">82 </span>    8b/copy                         0/mod/indirect  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"># copy *ebx to ebx</span>
-<span id="L83" class="LineNr">83 </span>    <span class="subxComment">#</span>
-<span id="L84" class="LineNr">84 </span>    e8/call  syscall_exit/disp32
-<span id="L85" class="LineNr">85 </span>
-<span id="L86" class="LineNr">86 </span>== data
-<span id="L87" class="LineNr">87 </span>
-<span id="L88" class="LineNr">88 </span><span class="SpecialChar">Stream</span>:
-<span id="L89" class="LineNr">89 </span>    0/imm32
-<span id="L90" class="LineNr">90 </span><span class="SpecialChar">A</span>:
-<span id="L91" class="LineNr">91 </span>    61/imm32/A
-<span id="L92" class="LineNr">92 </span><span class="SpecialChar">B</span>:
-<span id="L93" class="LineNr">93 </span>    0/imm32
-<span id="L94" class="LineNr">94 </span><span class="SpecialChar">Filename</span>:
-<span id="L95" class="LineNr">95 </span>    2e 66 6f 6f 00 00 00 00
-<span id="L96" class="LineNr">96 </span><span class="subxComment">#   .  f  o  o  null</span>
-<span id="L97" class="LineNr">97 </span>
-<span id="L98" class="LineNr">98 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
-</pre>
-</body>
-</html>
-<!-- vim: set foldmethod=manual : -->

 

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