4536

author: Kartik Agaram <vc@akkartik.com> 2018-09-07 15:08:54 -0700
committer: Kartik Agaram <vc@akkartik.com> 2018-09-07 15:08:54 -0700
commit: 608a7fa8d0faf9a3e3d182d9eabe969804443aab (patch)
tree: 7e1934d9ef0e8372381c306312591235c4f27110 /html/subx/examples
parent: a6517ed821ff39fa56eb3b975799d22497d78a48 (diff)
download: mu-608a7fa8d0faf9a3e3d182d9eabe969804443aab.tar.gz
9 files changed, 914 insertions, 0 deletions
diff --git a/html/subx/examples/ex1.1.subx.html b/html/subx/examples/ex1.1.subx.html
new file mode 100644
index 00000000..bb74b710
--- /dev/null
+++ b/html/subx/examples/ex1.1.subx.html
@@ -0,0 +1,79 @@
+<!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 - subx/examples/ex1.1.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## first program: same as <a href="https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html">https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html</a></span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment"># Just return 42.</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx translate ex1.1.subx ex1</span>
+<span id="L6" class="LineNr"> 6 </span><span class="Comment">#   $ subx run ex1</span>
+<span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected result:</span>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment">#   $ echo $?</span>
+<span id="L9" class="LineNr"> 9 </span><span class="Comment">#   42</span>
+<span id="L10" class="LineNr">10 </span>
+<span id="L11" class="LineNr">11 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L12" class="LineNr">12 </span><span class="Comment"># opcode        ModR/M                    SIB                   displacement    immediate</span>
+<span id="L13" class="LineNr">13 </span><span class="Comment"># instruction   mod, reg, Reg/Mem bits    scale, index, base</span>
+<span id="L14" class="LineNr">14 </span><span class="Comment"># 1-3 bytes     0/1 byte                  0/1 byte              0/1/2/4 bytes   0/1/2/4 bytes</span>
+<span id="L15" class="LineNr">15 </span>  bb                                                                            2a 00 00 00       <span class="Comment"># copy 0x2a (42) to EBX</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Comment"># exit(EBX)</span>
+<span id="L17" class="LineNr">17 </span>  b8                                                                            01 00 00 00       <span class="Comment"># copy 1 to EAX</span>
+<span id="L18" class="LineNr">18 </span>  cd                                                                            80                <span class="Comment"># int 80h</span>
+<span id="L19" class="LineNr">19 </span>
+<span id="L20" class="LineNr">20 </span><span class="Comment"># vim&#0058;ft=subx</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex1.2.subx.html b/html/subx/examples/ex1.2.subx.html
new file mode 100644
index 00000000..169797e8
--- /dev/null
+++ b/html/subx/examples/ex1.2.subx.html
@@ -0,0 +1,79 @@
+<!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 - subx/examples/ex1.2.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## first program: same as <a href="https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html">https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html</a></span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment"># Just return 42.</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx translate ex1.2.subx ex1</span>
+<span id="L6" class="LineNr"> 6 </span><span class="Comment">#   $ subx run ex1</span>
+<span id="L7" class="LineNr"> 7 </span><span class="Comment"># Expected result:</span>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment">#   $ echo $?</span>
+<span id="L9" class="LineNr"> 9 </span><span class="Comment">#   42</span>
+<span id="L10" class="LineNr">10 </span>
+<span id="L11" class="LineNr">11 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L12" class="LineNr">12 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L13" class="LineNr">13 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L14" class="LineNr">14 </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="L15" class="LineNr">15 </span>  bb/copy                                                                                                                         2a/imm32          <span class="Comment"># copy 42 to EBX</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Comment"># exit(EBX)</span>
+<span id="L17" class="LineNr">17 </span>  b8/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EAX</span>
+<span id="L18" class="LineNr">18 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L19" class="LineNr">19 </span>
+<span id="L20" class="LineNr">20 </span><span class="Comment"># vim&#0058;ft=subx</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex2.subx.html b/html/subx/examples/ex2.subx.html
new file mode 100644
index 00000000..0ec3069a
--- /dev/null
+++ b/html/subx/examples/ex2.subx.html
@@ -0,0 +1,79 @@
+<!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 - subx/examples/ex2.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## add 1 and 1, and return the result in the exit code</span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment">#   $ subx translate ex2.subx ex2</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx run ex2</span>
+<span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span>
+<span id="L7" class="LineNr"> 7 </span><span class="Comment">#   $ echo $?</span>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment">#   2</span>
+<span id="L9" class="LineNr"> 9 </span>
+<span id="L10" class="LineNr">10 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L11" class="LineNr">11 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L12" class="LineNr">12 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L13" class="LineNr">13 </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="L14" class="LineNr">14 </span>  bb/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EBX</span>
+<span id="L15" class="LineNr">15 </span>  81          0/subop/add         3/mod/direct    3/rm32/EBX                                                                      1/imm32           <span class="Comment"># add 1 to EBX</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Comment"># exit(EBX)</span>
+<span id="L17" class="LineNr">17 </span>  b8/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EAX</span>
+<span id="L18" class="LineNr">18 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L19" class="LineNr">19 </span>
+<span id="L20" class="LineNr">20 </span><span class="Comment"># vim&#0058;ft=subx</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex3.subx.html b/html/subx/examples/ex3.subx.html
new file mode 100644
index 00000000..1118bc53
--- /dev/null
+++ b/html/subx/examples/ex3.subx.html
@@ -0,0 +1,94 @@
+<!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 - subx/examples/ex3.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<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">
+<style type="text/css">
+<!--
+pre { font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## add the first 10 numbers, and return the result in the exit code</span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment">#   $ subx translate ex3.subx ex3</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx run ex3</span>
+<span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span>
+<span id="L7" class="LineNr"> 7 </span><span class="Comment">#   $ echo $?</span>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment">#   55</span>
+<span id="L9" class="LineNr"> 9 </span>
+<span id="L10" class="LineNr">10 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L11" class="LineNr">11 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L12" class="LineNr">12 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L13" class="LineNr">13 </span><span class="Comment"># 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
+<span id="L14" class="LineNr">14 </span>  <span class="Comment"># result: EBX = 0</span>
+<span id="L15" class="LineNr">15 </span>  bb/copy                                                                                                                         0/imm32           <span class="Comment"># copy 0 to EBX</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Comment"># counter: ECX = 1</span>
+<span id="L17" class="LineNr">17 </span>  b9/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to ECX</span>
+<span id="L18" class="LineNr">18 </span>
+<span id="L19" class="LineNr">19 </span>$loop:
+<span id="L20" class="LineNr">20 </span>  <span class="Comment"># while (counter &lt;= 10)</span>
+<span id="L21" class="LineNr">21 </span>  81          7/subop/compare     3/mod/direct    1/rm32/ECX                                                                      0xa/imm32         <span class="Comment"># compare ECX, 10/imm</span>
+<span id="L22" class="LineNr">22 </span>  7f/jump-if                                                                                                      $exit/disp8                       <span class="Comment"># jump-if-greater $exit</span>
+<span id="L23" class="LineNr">23 </span>  <span class="Comment"># result += counter</span>
+<span id="L24" class="LineNr">24 </span>  01/add                          3/mod/direct    3/rm32/EBX                                          1/r32/ECX                                     <span class="Comment"># add ECX to EBX</span>
+<span id="L25" class="LineNr">25 </span>  <span class="Comment"># ++counter</span>
+<span id="L26" class="LineNr">26 </span>  81          0/subop/add         3/mod/direct    1/rm32/ECX                                                                      1/imm32           <span class="Comment"># add 1 to ECX</span>
+<span id="L27" class="LineNr">27 </span>  <span class="Comment"># loop</span>
+<span id="L28" class="LineNr">28 </span>  eb/jump                                                                                                         $loop/disp8                       <span class="Comment"># jump $loop</span>
+<span id="L29" class="LineNr">29 </span>
+<span id="L30" class="LineNr">30 </span>$exit:
+<span id="L31" class="LineNr">31 </span>  <span class="Comment"># exit(EBX)</span>
+<span id="L32" class="LineNr">32 </span>  b8/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EAX</span>
+<span id="L33" class="LineNr">33 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L34" class="LineNr">34 </span>
+<span id="L35" class="LineNr">35 </span><span class="Comment"># vim&#0058;ft=subx:nowrap</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex4.subx.html b/html/subx/examples/ex4.subx.html
new file mode 100644
index 00000000..8191b5c5
--- /dev/null
+++ b/html/subx/examples/ex4.subx.html
@@ -0,0 +1,101 @@
+<!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 - subx/examples/ex4.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<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">
+<style type="text/css">
+<!--
+pre { font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## read a character from stdin, save it to a global, write it to stdout</span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment">#   $ subx translate ex4.subx ex4</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx run ex4</span>
+<span id="L6" class="LineNr"> 6 </span>
+<span id="L7" class="LineNr"> 7 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L9" class="LineNr"> 9 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L10" class="LineNr">10 </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="L11" class="LineNr">11 </span>
+<span id="L12" class="LineNr">12 </span>  <span class="SalientComment">## read(stdin, x, 1)</span>
+<span id="L13" class="LineNr">13 </span>  <span class="Comment"># fd = 0 (stdin)</span>
+<span id="L14" class="LineNr">14 </span>  bb/copy                                                                                                                         0/imm32           <span class="Comment"># copy 0 to EBX</span>
+<span id="L15" class="LineNr">15 </span>  <span class="Comment"># initialize x (location to write result to)</span>
+<span id="L16" class="LineNr">16 </span>  b9/copy                                                                                                                         x/imm32           <span class="Comment"># copy to ECX</span>
+<span id="L17" class="LineNr">17 </span>  <span class="Comment"># size = 1 character</span>
+<span id="L18" class="LineNr">18 </span>  ba/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EDX</span>
+<span id="L19" class="LineNr">19 </span>  <span class="Comment"># read(fd, x, size)</span>
+<span id="L20" class="LineNr">20 </span>  b8/copy                                                                                                                         3/imm32           <span class="Comment"># copy 3 to EAX</span>
+<span id="L21" class="LineNr">21 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L22" class="LineNr">22 </span>
+<span id="L23" class="LineNr">23 </span>  <span class="SalientComment">## write(stdout, x, 1)</span>
+<span id="L24" class="LineNr">24 </span>  <span class="Comment"># fd = 1 (stdout)</span>
+<span id="L25" class="LineNr">25 </span>  bb/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EBX</span>
+<span id="L26" class="LineNr">26 </span>  <span class="Comment"># initialize x (location to read from)</span>
+<span id="L27" class="LineNr">27 </span>  b9/copy                                                                                                                         x/imm32           <span class="Comment"># copy to ECX</span>
+<span id="L28" class="LineNr">28 </span>  <span class="Comment"># size = 1 character</span>
+<span id="L29" class="LineNr">29 </span>  ba/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EDX</span>
+<span id="L30" class="LineNr">30 </span>  <span class="Comment"># write(fd, x, size)</span>
+<span id="L31" class="LineNr">31 </span>  b8/copy                                                                                                                         4/imm32           <span class="Comment"># copy 4 to EAX</span>
+<span id="L32" class="LineNr">32 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L33" class="LineNr">33 </span>
+<span id="L34" class="LineNr">34 </span>  <span class="SalientComment">## exit(EBX)</span>
+<span id="L35" class="LineNr">35 </span>  b8/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EAX</span>
+<span id="L36" class="LineNr">36 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L37" class="LineNr">37 </span>
+<span id="L38" class="LineNr">38 </span>== <a href='011run.cc.html#L122'>data</a>
+<span id="L39" class="LineNr">39 </span>x:
+<span id="L40" class="LineNr">40 </span>00 00 00 00  <span class="Comment"># space for read() to write to</span>
+<span id="L41" class="LineNr">41 </span>
+<span id="L42" class="LineNr">42 </span><span class="Comment"># vim&#0058;ft=subx:nowrap</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex5.subx.html b/html/subx/examples/ex5.subx.html
new file mode 100644
index 00000000..ea095cba
--- /dev/null
+++ b/html/subx/examples/ex5.subx.html
@@ -0,0 +1,104 @@
+<!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 - subx/examples/ex5.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<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">
+<style type="text/css">
+<!--
+pre { font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## read a character from stdin, save it to a local on the stack, write it to stdout</span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment">#   $ subx translate ex5.subx ex5</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx run ex5</span>
+<span id="L6" class="LineNr"> 6 </span>
+<span id="L7" class="LineNr"> 7 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L9" class="LineNr"> 9 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L10" class="LineNr">10 </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="L11" class="LineNr">11 </span>
+<span id="L12" class="LineNr">12 </span><span class="SalientComment">## function main</span>
+<span id="L13" class="LineNr">13 </span>  <span class="Comment"># prolog</span>
+<span id="L14" class="LineNr">14 </span>  55/push                                                                                                                                           <span class="Comment"># push EBP</span>
+<span id="L15" class="LineNr">15 </span>  89/copy                         3/mod/direct    5/rm32/EBP                                          4/r32/ESP                                     <span class="Comment"># copy ESP to EBP</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Comment"># allocate x on the stack</span>
+<span id="L17" class="LineNr">17 </span>  81          5/subop/subtract    3/mod/direct    4/rm32/ESP                                                                      4/imm32           <span class="Comment"># subtract 4 bytes from ESP</span>
+<span id="L18" class="LineNr">18 </span>
+<span id="L19" class="LineNr">19 </span>  <span class="SalientComment">## read(stdin, x, 1)</span>
+<span id="L20" class="LineNr">20 </span>  <span class="Comment"># fd = 0 (stdin)</span>
+<span id="L21" class="LineNr">21 </span>  bb/copy                                                                                                                         0/imm32           <span class="Comment"># copy 0 to EBX</span>
+<span id="L22" class="LineNr">22 </span>  <span class="Comment"># initialize x (location to write result to)</span>
+<span id="L23" class="LineNr">23 </span>  89/copy                         3/mod/direct    1/rm32/ECX                                          5/r32/EBP                                     <span class="Comment"># copy EBP to ECX</span>
+<span id="L24" class="LineNr">24 </span>  <span class="Comment"># size = 1 character</span>
+<span id="L25" class="LineNr">25 </span>  ba/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EDX</span>
+<span id="L26" class="LineNr">26 </span>  <span class="Comment"># read(fd, x, size)</span>
+<span id="L27" class="LineNr">27 </span>  b8/copy                                                                                                                         3/imm32           <span class="Comment"># copy 3 to EAX</span>
+<span id="L28" class="LineNr">28 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L29" class="LineNr">29 </span>
+<span id="L30" class="LineNr">30 </span>  <span class="SalientComment">## write(stdout, x, 1)</span>
+<span id="L31" class="LineNr">31 </span>  <span class="Comment"># fd = 1 (stdout)</span>
+<span id="L32" class="LineNr">32 </span>  bb/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EBX</span>
+<span id="L33" class="LineNr">33 </span>  <span class="Comment"># initialize x (location to read from)</span>
+<span id="L34" class="LineNr">34 </span>  89/copy                         3/mod/direct    1/rm32/ECX                                          5/r32/EBP                                     <span class="Comment"># copy EBP to ECX</span>
+<span id="L35" class="LineNr">35 </span>  <span class="Comment"># size = 1 character</span>
+<span id="L36" class="LineNr">36 </span>  ba/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EDX</span>
+<span id="L37" class="LineNr">37 </span>  <span class="Comment"># write(fd, x, size)</span>
+<span id="L38" class="LineNr">38 </span>  b8/copy                                                                                                                         4/imm32           <span class="Comment"># copy 4 to EAX</span>
+<span id="L39" class="LineNr">39 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L40" class="LineNr">40 </span>
+<span id="L41" class="LineNr">41 </span>  <span class="SalientComment">## exit(EBX)</span>
+<span id="L42" class="LineNr">42 </span>  b8/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EAX</span>
+<span id="L43" class="LineNr">43 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L44" class="LineNr">44 </span>
+<span id="L45" class="LineNr">45 </span><span class="Comment"># vim&#0058;ft=subx:nowrap</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex6.subx.html b/html/subx/examples/ex6.subx.html
new file mode 100644
index 00000000..3ae33645
--- /dev/null
+++ b/html/subx/examples/ex6.subx.html
@@ -0,0 +1,95 @@
+<!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 - subx/examples/ex6.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<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">
+<style type="text/css">
+<!--
+pre { font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## print out a (global variable) string to stdout</span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment">#   $ subx translate ex6.subx ex6</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx run ex6</span>
+<span id="L6" class="LineNr"> 6 </span><span class="Comment">#   Hello, world!</span>
+<span id="L7" class="LineNr"> 7 </span>
+<span id="L8" class="LineNr"> 8 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L9" class="LineNr"> 9 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L10" class="LineNr">10 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L11" class="LineNr">11 </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="L12" class="LineNr">12 </span>
+<span id="L13" class="LineNr">13 </span>  <span class="SalientComment">## write(stdout, x, 1)</span>
+<span id="L14" class="LineNr">14 </span>  <span class="Comment"># fd = 1 (stdout)</span>
+<span id="L15" class="LineNr">15 </span>  bb/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EBX</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Comment"># initialize x (location to write result to)</span>
+<span id="L17" class="LineNr">17 </span>  b9/copy                                                                                                                         x/imm32           <span class="Comment"># copy to ECX</span>
+<span id="L18" class="LineNr">18 </span>  <span class="Comment"># initialize size</span>
+<span id="L19" class="LineNr">19 </span>  ba/copy                                                                                                                         size/imm32        <span class="Comment"># copy to EDX</span>
+<span id="L20" class="LineNr">20 </span>  8b/copy                         0/mod/indirect  2/rm32/EDX                                          2/r32/EDX                                     <span class="Comment"># copy *EDX to EDX</span>
+<span id="L21" class="LineNr">21 </span>  <span class="Comment"># write(fd, x, size)</span>
+<span id="L22" class="LineNr">22 </span>  b8/copy                                                                                                                         4/imm32           <span class="Comment"># copy 4 to EAX</span>
+<span id="L23" class="LineNr">23 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L24" class="LineNr">24 </span>
+<span id="L25" class="LineNr">25 </span>  <span class="SalientComment">## exit(EBX)</span>
+<span id="L26" class="LineNr">26 </span>  b8/copy                                                                                                                         1/imm32           <span class="Comment"># copy 1 to EAX</span>
+<span id="L27" class="LineNr">27 </span>  cd/syscall                                                                                                                      0x80/imm8         <span class="Comment"># int 80h</span>
+<span id="L28" class="LineNr">28 </span>
+<span id="L29" class="LineNr">29 </span>== <a href='011run.cc.html#L122'>data</a>
+<span id="L30" class="LineNr">30 </span>size:  <span class="Comment"># size of string</span>
+<span id="L31" class="LineNr">31 </span>  0e 00 00 00  <span class="Comment"># 14</span>
+<span id="L32" class="LineNr">32 </span>x:  <span class="Comment"># string to print</span>
+<span id="L33" class="LineNr">33 </span>  48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a       00
+<span id="L34" class="LineNr">34 </span><span class="Comment"># h  e  l  l  o  ,  ␣  w  o  r  l  d  !  newline  null</span>
+<span id="L35" class="LineNr">35 </span>
+<span id="L36" class="LineNr">36 </span><span class="Comment"># vim&#0058;ft=subx:nowrap</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/subx/examples/ex7.subx.html b/html/subx/examples/ex7.subx.html
new file mode 100644
index 00000000..ecf0f0f8
--- /dev/null
+++ b/html/subx/examples/ex7.subx.html
@@ -0,0 +1,163 @@
+<!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 - subx/examples/ex7.subx</title>
+<meta name="Generator" content="Vim/8.0">
+<meta name="plugin-version" content="vim7.4_v2">
+<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">
+<style type="text/css">
+<!--
+pre { font-family: monospace; color: #aaaaaa; background-color: #080808; }
+body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+a { color:#eeeeee; text-decoration: none; }
+a:hover { text-decoration: underline; }
+* { font-size: 12pt; font-size: 1em; }
+.LineNr { color: #444444; }
+.Delimiter { color: #800080; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
+.SalientComment { color: #00ffff; }
+-->
+</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;
+  }
+  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();'>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="SalientComment">## example showing file syscalls</span>
+<span id="L2" class="LineNr">  2 </span><span class="Comment"># Create a file, open it for writing, write a character to it, close it, open</span>
+<span id="L3" class="LineNr">  3 </span><span class="Comment"># it for reading, read a character from it, close it, delete it, and return</span>
+<span id="L4" class="LineNr">  4 </span><span class="Comment"># the character read.</span>
+<span id="L5" class="LineNr">  5 </span><span class="Comment">#</span>
+<span id="L6" class="LineNr">  6 </span><span class="Comment"># To run:</span>
+<span id="L7" class="LineNr">  7 </span><span class="Comment">#   $ subx translate ex8.subx ex8</span>
+<span id="L8" class="LineNr">  8 </span><span class="Comment">#   $ subx run ex8</span>
+<span id="L9" class="LineNr">  9 </span><span class="Comment"># Expected result:</span>
+<span id="L10" class="LineNr"> 10 </span><span class="Comment">#   $ echo $?</span>
+<span id="L11" class="LineNr"> 11 </span><span class="Comment">#   97</span>
+<span id="L12" class="LineNr"> 12 </span>
+<span id="L13" class="LineNr"> 13 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L14" class="LineNr"> 14 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L15" class="LineNr"> 15 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L16" class="LineNr"> 16 </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="L17" class="LineNr"> 17 </span>
+<span id="L18" class="LineNr"> 18 </span>  <span class="SalientComment">## creat(filename)</span>
+<span id="L19" class="LineNr"> 19 </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>              filename/imm32          <span class="Comment"># copy to EBX</span>
+<span id="L20" class="LineNr"> 20 </span>  b9/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>              0x180/imm32/fixed-perms <span class="Comment"># copy to ECX</span>
+<span id="L21" class="LineNr"> 21 </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>              8/imm32/creat           <span class="Comment"># copy 8 to EAX</span>
+<span id="L22" class="LineNr"> 22 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L23" class="LineNr"> 23 </span>
+<span id="L24" class="LineNr"> 24 </span>  <span class="SalientComment">## stream = open(filename, O_WRONLY, 0)  # we can't use 'fd' because it looks like a hex byte</span>
+<span id="L25" class="LineNr"> 25 </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>              filename/imm32          <span class="Comment"># copy to EBX</span>
+<span id="L26" class="LineNr"> 26 </span>  b9/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>              1/imm32/wronly          <span class="Comment"># copy 1 to ECX</span>
+<span id="L27" class="LineNr"> 27 </span>  ba/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>              0x180/imm32/fixed-perms <span class="Comment"># copy 0 to EDX</span>
+<span id="L28" class="LineNr"> 28 </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>              5/imm32/open            <span class="Comment"># copy 5 to EAX</span>
+<span id="L29" class="LineNr"> 29 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L30" class="LineNr"> 30 </span>  <span class="Comment"># save stream</span>
+<span id="L31" class="LineNr"> 31 </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>              stream/imm32            <span class="Comment"># copy to EBX</span>
+<span id="L32" class="LineNr"> 32 </span>  89/copy                         0/mod/indirect  3/rm32/EBX                                          0/r32/EAX                                           <span class="Comment"># copy EAX to *EBX</span>
+<span id="L33" class="LineNr"> 33 </span>
+<span id="L34" class="LineNr"> 34 </span>  <span class="SalientComment">## write(stream, &quot;a&quot;, 1)</span>
+<span id="L35" class="LineNr"> 35 </span>  <span class="Comment"># load stream</span>
+<span id="L36" class="LineNr"> 36 </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>              stream/imm32            <span class="Comment"># copy to EBX</span>
+<span id="L37" class="LineNr"> 37 </span>  8b/copy                         0/mod/indirect  3/rm32/EBX                                          3/r32/EBX                                           <span class="Comment"># copy *EBX to EBX</span>
+<span id="L38" class="LineNr"> 38 </span>  <span class="Comment">#</span>
+<span id="L39" class="LineNr"> 39 </span>  b9/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>              a/imm32                 <span class="Comment"># copy to ECX</span>
+<span id="L40" class="LineNr"> 40 </span>  ba/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>              1/imm32/size            <span class="Comment"># copy 1 to EDX</span>
+<span id="L41" class="LineNr"> 41 </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 4 to EAX</span>
+<span id="L42" class="LineNr"> 42 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L43" class="LineNr"> 43 </span>
+<span id="L44" class="LineNr"> 44 </span>  <span class="SalientComment">## close(stream)</span>
+<span id="L45" class="LineNr"> 45 </span>  <span class="Comment"># load stream</span>
+<span id="L46" class="LineNr"> 46 </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>              stream/imm32            <span class="Comment"># copy to EBX</span>
+<span id="L47" class="LineNr"> 47 </span>  8b/copy                         0/mod/indirect  3/rm32/EBX                                          3/r32/EBX                                           <span class="Comment"># copy *EBX to EBX</span>
+<span id="L48" class="LineNr"> 48 </span>  <span class="Comment">#</span>
+<span id="L49" class="LineNr"> 49 </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>              6/imm32/close           <span class="Comment"># copy 6 to EAX</span>
+<span id="L50" class="LineNr"> 50 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L51" class="LineNr"> 51 </span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="SalientComment">## stream = open(filename, O_RDONLY, 0)</span>
+<span id="L53" class="LineNr"> 53 </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>              filename/imm32          <span class="Comment"># copy to EBX</span>
+<span id="L54" class="LineNr"> 54 </span>  b9/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>              0/imm32/rdonly          <span class="Comment"># copy 0 to ECX</span>
+<span id="L55" class="LineNr"> 55 </span>  ba/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>              0x180/imm32/fixed-perms <span class="Comment"># copy to EDX</span>
+<span id="L56" class="LineNr"> 56 </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>              5/imm32/open            <span class="Comment"># copy 5 to EAX</span>
+<span id="L57" class="LineNr"> 57 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L58" class="LineNr"> 58 </span>  <span class="Comment"># save stream</span>
+<span id="L59" class="LineNr"> 59 </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>              stream/imm32            <span class="Comment"># copy to EBX</span>
+<span id="L60" class="LineNr"> 60 </span>  89/copy                         0/mod/indirect  3/rm32/EBX                                          0/r32/EAX                                           <span class="Comment"># copy EAX to *EBX</span>
+<span id="L61" class="LineNr"> 61 </span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="SalientComment">## read(stream, b, 1)</span>
+<span id="L63" class="LineNr"> 63 </span>  <span class="Comment"># load stream</span>
+<span id="L64" class="LineNr"> 64 </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>              stream/imm32            <span class="Comment"># copy to EBX</span>
+<span id="L65" class="LineNr"> 65 </span>  8b/copy                         0/mod/indirect  3/rm32/EBX                                          3/r32/EBX                                           <span class="Comment"># copy *EBX to EBX</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="Comment">#</span>
+<span id="L67" class="LineNr"> 67 </span>  b9/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>              b/imm32                 <span class="Comment"># copy to ECX</span>
+<span id="L68" class="LineNr"> 68 </span>  ba/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>              1/imm32/size            <span class="Comment"># copy 1 to EDX</span>
+<span id="L69" class="LineNr"> 69 </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>              3/imm32/read            <span class="Comment"># copy 3 to EAX</span>
+<span id="L70" class="LineNr"> 70 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L71" class="LineNr"> 71 </span>
+<span id="L72" class="LineNr"> 72 </span>  <span class="SalientComment">## close(stream)</span>
+<span id="L73" class="LineNr"> 73 </span>  <span class="Comment"># load stream</span>
+<span id="L74" class="LineNr"> 74 </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>              stream/imm32            <span class="Comment"># copy to EBX</span>
+<span id="L75" class="LineNr"> 75 </span>  8b/copy                         0/mod/indirect  3/rm32/EBX                                          3/r32/EBX                                           <span class="Comment"># copy *EBX to EBX</span>
+<span id="L76" class="LineNr"> 76 </span>  <span class="Comment">#</span>
+<span id="L77" class="LineNr"> 77 </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>              6/imm32/close           <span class="Comment"># copy 6 to EAX</span>
+<span id="L78" class="LineNr"> 78 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L79" class="LineNr"> 79 </span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="SalientComment">## unlink(filename)</span>
+<span id="L81" class="LineNr"> 81 </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>              filename/imm32          <span class="Comment"># copy to EBX</span>
+<span id="L82" class="LineNr"> 82 </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>              0xa/imm32/unlink        <span class="Comment"># copy 10 to EAX</span>
+<span id="L83" class="LineNr"> 83 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L84" class="LineNr"> 84 </span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="SalientComment">## exit(b)</span>
+<span id="L86" class="LineNr"> 86 </span>  <span class="Comment"># load b</span>
+<span id="L87" class="LineNr"> 87 </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>              b/imm32                 <span class="Comment"># copy to EBX</span>
+<span id="L88" class="LineNr"> 88 </span>  8b/copy                         0/mod/indirect  3/rm32/EBX                                          3/r32/EBX                                           <span class="Comment"># copy *EBX to EBX</span>
+<span id="L89" class="LineNr"> 89 </span>  <span class="Comment">#</span>
+<span id="L90" class="LineNr"> 90 </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>              1/imm32/exit            <span class="Comment"># copy 1 to EAX</span>
+<span id="L91" class="LineNr"> 91 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L92" class="LineNr"> 92 </span>
+<span id="L93" class="LineNr"> 93 </span>== <a href='011run.cc.html#L122'>data</a>
+<span id="L94" class="LineNr"> 94 </span>stream:
+<span id="L95" class="LineNr"> 95 </span>00 00 00 00
+<span id="L96" class="LineNr"> 96 </span>a:
+<span id="L97" class="LineNr"> 97 </span>61 00 00 00
+<span id="L98" class="LineNr"> 98 </span>b:
+<span id="L99" class="LineNr"> 99 </span>00 00 00 00
+<span id="L100" class="LineNr">100 </span>filename:
+<span id="L101" class="LineNr">101 </span>2e 66 6f 6f 00 00 00 00
+<span id="L102" class="LineNr">102 </span>
+<span id="L103" class="LineNr">103 </span><span class="Comment"># vim&#0058;ft=subx:nowrap:tw&amp;</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
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+<title>Mu - subx/examples/ex8.subx</title>
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+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="Comment"># Example reading commandline arguments: compute length of first arg.</span>
+<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
+<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
+<span id="L4" class="LineNr"> 4 </span><span class="Comment">#   $ subx translate ex9.subx ex9</span>
+<span id="L5" class="LineNr"> 5 </span><span class="Comment">#   $ subx run ex9 abc de fghi</span>
+<span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span>
+<span id="L7" class="LineNr"> 7 </span><span class="Comment">#   $ echo $?</span>
+<span id="L8" class="LineNr"> 8 </span><span class="Comment">#   3  # length of 'abc'</span>
+<span id="L9" class="LineNr"> 9 </span><span class="Comment">#</span>
+<span id="L10" class="LineNr">10 </span><span class="Comment"># At the start of a SubX program:</span>
+<span id="L11" class="LineNr">11 </span><span class="Comment">#   argc: *ESP</span>
+<span id="L12" class="LineNr">12 </span><span class="Comment">#   argv[0]: *(ESP+4)</span>
+<span id="L13" class="LineNr">13 </span><span class="Comment">#   argv[1]: *(ESP+8)</span>
+<span id="L14" class="LineNr">14 </span><span class="Comment">#   ...</span>
+<span id="L15" class="LineNr">15 </span><span class="Comment"># Locals start from ESP-4 downwards.</span>
+<span id="L16" class="LineNr">16 </span>
+<span id="L17" class="LineNr">17 </span>== <a href='031check_operands.cc.html#L14'>code</a>
+<span id="L18" class="LineNr">18 </span><span class="Comment"># instruction                     effective address                                                   operand     displacement    immediate</span>
+<span id="L19" class="LineNr">19 </span><span class="Comment"># op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L20" class="LineNr">20 </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="L21" class="LineNr">21 </span>  <span class="Comment"># var s = argv[1] (EBX)</span>
+<span id="L22" class="LineNr">22 </span>  8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              3/r32/EBX   8/disp8        <span class="Delimiter"> . </span>                      <span class="Comment"># copy *(ESP+8) to EBX</span>
+<span id="L23" class="LineNr">23 </span>  <span class="Comment"># call ascii_length(EBX)</span>
+<span id="L24" class="LineNr">24 </span>    <span class="Comment"># prepare call</span>
+<span id="L25" class="LineNr">25 </span>  55/push                        <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>             <span class="Delimiter"> . </span>                      <span class="Comment"># push EBP</span>
+<span id="L26" class="LineNr">26 </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="L27" class="LineNr">27 </span>    <span class="Comment"># push args</span>
+<span id="L28" class="LineNr">28 </span>  53/push                        <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>             <span class="Delimiter"> . </span>                      <span class="Comment"># push EBX</span>
+<span id="L29" class="LineNr">29 </span>    <span class="Comment"># call</span>
+<span id="L30" class="LineNr">30 </span>  e8/call                        <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>          ascii_length/disp32
+<span id="L31" class="LineNr">31 </span>    <span class="Comment"># discard args</span>
+<span id="L32" class="LineNr">32 </span>  5a/pop                         <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>             <span class="Delimiter"> . </span>                      <span class="Comment"># pop into EDX</span>
+<span id="L33" class="LineNr">33 </span>    <span class="Comment"># clean up after call</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                         <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>             <span class="Delimiter"> . </span>                      <span class="Comment"># pop to EBP</span>
+<span id="L36" class="LineNr">36 </span>
+<span id="L37" class="LineNr">37 </span>  <span class="Comment"># exit(EAX)</span>
+<span id="L38" class="LineNr">38 </span>  89/copy                         3/mod/direct    3/rm32/EBX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          0/r32/EAX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                      <span class="Comment"># copy EAX to EBX</span>
+<span id="L39" class="LineNr">39 </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>              1/imm32/exit            <span class="Comment"># copy 1 to EAX</span>
+<span id="L40" class="LineNr">40 </span>  cd/syscall                     <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>              0x80/imm8               <span class="Comment"># int 80h</span>
+<span id="L41" class="LineNr">41 </span>
+<span id="L42" class="LineNr">42 </span>ascii_length:  <span class="Comment"># (s)</span>
+<span id="L43" class="LineNr">43 </span>  <span class="Comment"># initialize s (EDX)</span>
+<span id="L44" class="LineNr">44 </span>  8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none              2/r32/EDX   4/disp8                                 <span class="Comment"># copy *(ESP+4) to EDX</span>
+<span id="L45" class="LineNr">45 </span>  <span class="Comment"># var result = 0 (EAX)</span>
+<span id="L46" class="LineNr">46 </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>              0/imm32                 <span class="Comment"># copy 1 to EAX</span>
+<span id="L47" class="LineNr">47 </span>$al_loop:
+<span id="L48" class="LineNr">48 </span>  <span class="Comment"># var c = *s (ECX)</span>
+<span id="L49" class="LineNr">49 </span>  8a/copy                         0/mod/*         2/rm32/EDX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>          1/r32/ECX  <span class="Delimiter"> . </span>             <span class="Delimiter"> . </span>                      <span class="Comment"># copy byte at *EDX to lower byte of ECX</span>
+<span id="L50" class="LineNr">50 </span>  <span class="Comment"># if c == '\0' break</span>
+<span id="L51" class="LineNr">51 </span>  81          7/subop/compare     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>              0/imm32                 <span class="Comment"># compare ECX with 0</span>
+<span id="L52" class="LineNr">52 </span>  74/jump-if-zero                <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>              $al_ret/disp8           <span class="Comment"># jump if equal</span>
+<span id="L53" class="LineNr">53 </span>  <span class="Comment"># ++s</span>
+<span id="L54" class="LineNr">54 </span>  81          0/subop/add         3/mod/direct    2/rm32/EDX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>              1/imm32                 <span class="Comment"># add 1 to EDX</span>
+<span id="L55" class="LineNr">55 </span>  <span class="Comment"># ++result</span>
+<span id="L56" class="LineNr">56 </span>  81          0/subop/add         3/mod/direct    0/rm32/EAX   <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>           <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>         <span class="Delimiter"> . </span>              1/imm32                 <span class="Comment"># add 1 to EAX</span>
+<span id="L57" class="LineNr">57 </span>  <span class="Comment"># loop</span>
+<span id="L58" class="LineNr">58 </span>  eb/jump                        <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>              $al_loop/disp8          <span class="Comment"># jump $al_loop</span>
+<span id="L59" class="LineNr">59 </span>$al_ret:
+<span id="L60" class="LineNr">60 </span>  <span class="Comment"># return (result in EAX)</span>
+<span id="L61" class="LineNr">61 </span>  c3/return
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
author	Kartik Agaram <vc@akkartik.com>	2018-09-07 15:08:54 -0700
committer	Kartik Agaram <vc@akkartik.com>	2018-09-07 15:08:54 -0700
commit	608a7fa8d0faf9a3e3d182d9eabe969804443aab (patch)
tree	7e1934d9ef0e8372381c306312591235c4f27110 /html/subx/examples
parent	a6517ed821ff39fa56eb3b975799d22497d78a48 (diff)
download	mu-608a7fa8d0faf9a3e3d182d9eabe969804443aab.tar.gz