6958

author: Kartik Agaram <vc@akkartik.com> 2020-10-05 11:00:05 -0700
committer: Kartik Agaram <vc@akkartik.com> 2020-10-05 11:00:05 -0700
commit: d3a9db3aff54ea485f409eaaef3d8f56ad77f0dc (patch)
tree: 60858669ff7c5a5b041e4dacb8ffffa0a4b3e68a /html/apps/tile
parent: f13576b5d273ef9175e938b15f55bb1ead22fb1d (diff)
download: mu-d3a9db3aff54ea485f409eaaef3d8f56ad77f0dc.tar.gz
12 files changed, 3207 insertions, 0 deletions
diff --git a/html/apps/tile/box.mu.html b/html/apps/tile/box.mu.html
new file mode 100644
index 00000000..689dc7bf
--- /dev/null
+++ b/html/apps/tile/box.mu.html
@@ -0,0 +1,147 @@
+<!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 - apps/tile/box.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/box.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/box.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='box.mu.html#L1'>draw-box</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), row1: int, col1: int, row2: int, col2: int <span class="Delimiter">{</span>
+<span id="L2" class="LineNr"> 2 </span>  <a href='box.mu.html#L22'>draw-horizontal-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, row1, col1, col2
+<span id="L3" class="LineNr"> 3 </span>  <a href='box.mu.html#L34'>draw-vertical-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, row1, row2, col1
+<span id="L4" class="LineNr"> 4 </span>  <a href='box.mu.html#L22'>draw-horizontal-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, row2, col1, col2
+<span id="L5" class="LineNr"> 5 </span>  <a href='box.mu.html#L34'>draw-vertical-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, row1, row2, col2
+<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">}</span>
+<span id="L7" class="LineNr"> 7 </span>
+<span id="L8" class="LineNr"> 8 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='box.mu.html#L8'>draw-hatching</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), row1: int, col1: int, row2: int, col2: int <span class="Delimiter">{</span>
+<span id="L9" class="LineNr"> 9 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy col1
+<span id="L10" class="LineNr">10 </span>  <span class="PreProc">var</span> r1/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy row1
+<span id="L11" class="LineNr">11 </span>  r1 <span class="SpecialChar">&lt;-</span> increment
+<span id="L12" class="LineNr">12 </span>  c <span class="SpecialChar">&lt;-</span> add <span class="Constant">2</span>
+<span id="L13" class="LineNr">13 </span>  <span class="Delimiter">{</span>
+<span id="L14" class="LineNr">14 </span>    compare c, col2
+<span id="L15" class="LineNr">15 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L16" class="LineNr">16 </span>    <a href='box.mu.html#L34'>draw-vertical-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, r1, row2, c
+<span id="L17" class="LineNr">17 </span>    c <span class="SpecialChar">&lt;-</span> add <span class="Constant">2</span>
+<span id="L18" class="LineNr">18 </span>    <span class="PreProc">loop</span>
+<span id="L19" class="LineNr">19 </span>  <span class="Delimiter">}</span>
+<span id="L20" class="LineNr">20 </span><span class="Delimiter">}</span>
+<span id="L21" class="LineNr">21 </span>
+<span id="L22" class="LineNr">22 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='box.mu.html#L22'>draw-horizontal-line</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), row: int, col1: int, col2: int <span class="Delimiter">{</span>
+<span id="L23" class="LineNr">23 </span>  <span class="PreProc">var</span> col/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy col1
+<span id="L24" class="LineNr">24 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <span class="Constant">0</span>, row, col
+<span id="L25" class="LineNr">25 </span>  <span class="Delimiter">{</span>
+<span id="L26" class="LineNr">26 </span>    compare col, col2
+<span id="L27" class="LineNr">27 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L28" class="LineNr">28 </span>    <a href='../../405screen.mu.html#L422'>print-code-point</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x2500</span>
+<span id="L29" class="LineNr">29 </span>    col <span class="SpecialChar">&lt;-</span> increment
+<span id="L30" class="LineNr">30 </span>    <span class="PreProc">loop</span>
+<span id="L31" class="LineNr">31 </span>  <span class="Delimiter">}</span>
+<span id="L32" class="LineNr">32 </span><span class="Delimiter">}</span>
+<span id="L33" class="LineNr">33 </span>
+<span id="L34" class="LineNr">34 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='box.mu.html#L34'>draw-vertical-line</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), row1: int, row2: int, col: int <span class="Delimiter">{</span>
+<span id="L35" class="LineNr">35 </span>  <span class="PreProc">var</span> row/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy row1
+<span id="L36" class="LineNr">36 </span>  <span class="Delimiter">{</span>
+<span id="L37" class="LineNr">37 </span>    compare row, row2
+<span id="L38" class="LineNr">38 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L39" class="LineNr">39 </span>    <a href='../../405screen.mu.html#L116'>move-cursor</a> <span class="Constant">0</span>, row, col
+<span id="L40" class="LineNr">40 </span>    <a href='../../405screen.mu.html#L422'>print-code-point</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x2502</span>
+<span id="L41" class="LineNr">41 </span>    row <span class="SpecialChar">&lt;-</span> increment
+<span id="L42" class="LineNr">42 </span>    <span class="PreProc">loop</span>
+<span id="L43" class="LineNr">43 </span>  <span class="Delimiter">}</span>
+<span id="L44" class="LineNr">44 </span><span class="Delimiter">}</span>
+<span id="L45" class="LineNr">45 </span>
+<span id="L46" class="LineNr">46 </span><span class="muComment"># erase parts of screen the slow way</span>
+<span id="L47" class="LineNr">47 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='box.mu.html#L47'>clear-rect</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), row1: int, col1: int, row2: int, col2: int <span class="Delimiter">{</span>
+<span id="L48" class="LineNr">48 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy row1
+<span id="L49" class="LineNr">49 </span>  <span class="Delimiter">{</span>
+<span id="L50" class="LineNr">50 </span>    compare i, row2
+<span id="L51" class="LineNr">51 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L52" class="LineNr">52 </span>    <span class="PreProc">var</span> j/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy col1
+<span id="L53" class="LineNr">53 </span>    <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, i, j
+<span id="L54" class="LineNr">54 </span>    <span class="Delimiter">{</span>
+<span id="L55" class="LineNr">55 </span>      compare j, col2
+<span id="L56" class="LineNr">56 </span>      <span class="PreProc">break-if-&gt;</span>
+<span id="L57" class="LineNr">57 </span>      <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a> <span class="Constant">0x20</span>  <span class="muComment"># space</span>
+<span id="L58" class="LineNr">58 </span>      j <span class="SpecialChar">&lt;-</span> increment
+<span id="L59" class="LineNr">59 </span>      <span class="PreProc">loop</span>
+<span id="L60" class="LineNr">60 </span>    <span class="Delimiter">}</span>
+<span id="L61" class="LineNr">61 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L62" class="LineNr">62 </span>    <span class="PreProc">loop</span>
+<span id="L63" class="LineNr">63 </span>  <span class="Delimiter">}</span>
+<span id="L64" class="LineNr">64 </span><span class="Delimiter">}</span>
+<span id="L65" class="LineNr">65 </span>
+<span id="L66" class="LineNr">66 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='box.mu.html#L66'>clear-rect2</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), row1: int, col1: int, w: int, h: int <span class="Delimiter">{</span>
+<span id="L67" class="LineNr">67 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L68" class="LineNr">68 </span>  <span class="PreProc">var</span> curr-row/<span class="Constant">esi</span>: int <span class="SpecialChar">&lt;-</span> copy row1
+<span id="L69" class="LineNr">69 </span>  <span class="Delimiter">{</span>
+<span id="L70" class="LineNr">70 </span>    compare i, w
+<span id="L71" class="LineNr">71 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L72" class="LineNr">72 </span>    <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, curr-row, col1
+<span id="L73" class="LineNr">73 </span>    <span class="PreProc">var</span> j/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L74" class="LineNr">74 </span>    <span class="Delimiter">{</span>
+<span id="L75" class="LineNr">75 </span>      compare j, h
+<span id="L76" class="LineNr">76 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L77" class="LineNr">77 </span>      <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a> <span class="Constant">0x20</span>  <span class="muComment"># space</span>
+<span id="L78" class="LineNr">78 </span>      j <span class="SpecialChar">&lt;-</span> increment
+<span id="L79" class="LineNr">79 </span>      <span class="PreProc">loop</span>
+<span id="L80" class="LineNr">80 </span>    <span class="Delimiter">}</span>
+<span id="L81" class="LineNr">81 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L82" class="LineNr">82 </span>    curr-row <span class="SpecialChar">&lt;-</span> increment
+<span id="L83" class="LineNr">83 </span>    <span class="PreProc">loop</span>
+<span id="L84" class="LineNr">84 </span>  <span class="Delimiter">}</span>
+<span id="L85" class="LineNr">85 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/data.mu.html b/html/apps/tile/data.mu.html
new file mode 100644
index 00000000..4e0c9f7d
--- /dev/null
+++ b/html/apps/tile/data.mu.html
@@ -0,0 +1,262 @@
+<!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 - apps/tile/data.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/data.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/data.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">type</span> <a href='data.mu.html#L1'>program</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  defs: (handle <a href='data.mu.html#L13'>function</a>)
+<span id="L3" class="LineNr">  3 </span>  sandboxes: (handle <a href='data.mu.html#L6'>sandbox</a>)
+<span id="L4" class="LineNr">  4 </span><span class="Delimiter">}</span>
+<span id="L5" class="LineNr">  5 </span>
+<span id="L6" class="LineNr">  6 </span><span class="PreProc">type</span> <a href='data.mu.html#L6'>sandbox</a> <span class="Delimiter">{</span>
+<span id="L7" class="LineNr">  7 </span>  setup: (handle <a href='data.mu.html#L21'>line</a>)
+<span id="L8" class="LineNr">  8 </span>  data: (handle <a href='data.mu.html#L21'>line</a>)
+<span id="L9" class="LineNr">  9 </span>  next: (handle <a href='data.mu.html#L6'>sandbox</a>)
+<span id="L10" class="LineNr"> 10 </span>  prev: (handle <a href='data.mu.html#L6'>sandbox</a>)
+<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">}</span>
+<span id="L12" class="LineNr"> 12 </span>
+<span id="L13" class="LineNr"> 13 </span><span class="PreProc">type</span> <a href='data.mu.html#L13'>function</a> <span class="Delimiter">{</span>
+<span id="L14" class="LineNr"> 14 </span>  name: (handle array byte)
+<span id="L15" class="LineNr"> 15 </span>  args: (handle <a href='data.mu.html#L29'>word</a>)  <span class="muComment"># in reverse order</span>
+<span id="L16" class="LineNr"> 16 </span>  body: (handle <a href='data.mu.html#L21'>line</a>)
+<span id="L17" class="LineNr"> 17 </span>  <span class="muComment"># some sort of indication of spatial location</span>
+<span id="L18" class="LineNr"> 18 </span>  next: (handle <a href='data.mu.html#L13'>function</a>)
+<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">}</span>
+<span id="L20" class="LineNr"> 20 </span>
+<span id="L21" class="LineNr"> 21 </span><span class="PreProc">type</span> <a href='data.mu.html#L21'>line</a> <span class="Delimiter">{</span>
+<span id="L22" class="LineNr"> 22 </span>  name: (handle array byte)
+<span id="L23" class="LineNr"> 23 </span>  data: (handle <a href='data.mu.html#L29'>word</a>)
+<span id="L24" class="LineNr"> 24 </span>  <a href='data.mu.html#L56'>result</a>: (handle <a href='data.mu.html#L56'>result</a>)  <span class="muComment"># might be cached</span>
+<span id="L25" class="LineNr"> 25 </span>  next: (handle <a href='data.mu.html#L21'>line</a>)
+<span id="L26" class="LineNr"> 26 </span>  prev: (handle <a href='data.mu.html#L21'>line</a>)
+<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">}</span>
+<span id="L28" class="LineNr"> 28 </span>
+<span id="L29" class="LineNr"> 29 </span><span class="PreProc">type</span> <a href='data.mu.html#L29'>word</a> <span class="Delimiter">{</span>
+<span id="L30" class="LineNr"> 30 </span>  <span class="muComment"># at most one of these will be non-null</span>
+<span id="L31" class="LineNr"> 31 </span>  scalar-data: (handle gap-buffer)
+<span id="L32" class="LineNr"> 32 </span>  text-data: (handle array byte)
+<span id="L33" class="LineNr"> 33 </span>  box-data: (handle <a href='data.mu.html#L21'>line</a>)  <span class="muComment"># recurse</span>
+<span id="L34" class="LineNr"> 34 </span>  <span class="muComment"># other metadata attached to this word</span>
+<span id="L35" class="LineNr"> 35 </span>  display-subsidiary-stack?: boolean
+<span id="L36" class="LineNr"> 36 </span>  next: (handle <a href='data.mu.html#L29'>word</a>)
+<span id="L37" class="LineNr"> 37 </span>  prev: (handle <a href='data.mu.html#L29'>word</a>)
+<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">}</span>
+<span id="L39" class="LineNr"> 39 </span>
+<span id="L40" class="LineNr"> 40 </span><span class="PreProc">type</span> <a href='data.mu.html#L40'>value</a> <span class="Delimiter">{</span>
+<span id="L41" class="LineNr"> 41 </span>  scalar-data: int
+<span id="L42" class="LineNr"> 42 </span>  text-data: (handle array byte)
+<span id="L43" class="LineNr"> 43 </span>  box-data: (handle <a href='data.mu.html#L21'>line</a>)
+<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">}</span>
+<span id="L45" class="LineNr"> 45 </span>
+<span id="L46" class="LineNr"> 46 </span><span class="PreProc">type</span> <a href='data.mu.html#L46'>table</a> <span class="Delimiter">{</span>
+<span id="L47" class="LineNr"> 47 </span>  data: (handle array <a href='data.mu.html#L51'>bind</a>)
+<span id="L48" class="LineNr"> 48 </span>  next: (handle <a href='data.mu.html#L46'>table</a>)
+<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">}</span>
+<span id="L50" class="LineNr"> 50 </span>
+<span id="L51" class="LineNr"> 51 </span><span class="PreProc">type</span> <a href='data.mu.html#L51'>bind</a> <span class="Delimiter">{</span>
+<span id="L52" class="LineNr"> 52 </span>  key: (handle array byte)
+<span id="L53" class="LineNr"> 53 </span>  <a href='data.mu.html#L40'>value</a>: (handle <a href='data.mu.html#L40'>value</a>)  <span class="muComment"># I'd inline this but we sometimes want to return a specific value from a table</span>
+<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">}</span>
+<span id="L55" class="LineNr"> 55 </span>
+<span id="L56" class="LineNr"> 56 </span><span class="PreProc">type</span> <a href='data.mu.html#L56'>result</a> <span class="Delimiter">{</span>
+<span id="L57" class="LineNr"> 57 </span>  data: value-stack
+<span id="L58" class="LineNr"> 58 </span>  <a href='../../114error.subx.html#L9'>error</a>: (handle array byte)  <span class="muComment"># single error message for now</span>
+<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">}</span>
+<span id="L60" class="LineNr"> 60 </span>
+<span id="L61" class="LineNr"> 61 </span><span class="muComment"># if 'out' is non-null, save the first word of the program there</span>
+<span id="L62" class="LineNr"> 62 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='data.mu.html#L62'>initialize-program</a></span> _program: (addr <a href='data.mu.html#L1'>program</a>), out: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="Delimiter">{</span>
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> <a href='data.mu.html#L1'>program</a>/<span class="Constant">esi</span>: (addr <a href='data.mu.html#L1'>program</a>) <span class="SpecialChar">&lt;-</span> copy _program
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> defs/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> <a href='data.mu.html#L1'>program</a>, defs
+<span id="L65" class="LineNr"> 65 </span>  <a href='data.mu.html#L97'>create-primitive-defs</a> defs
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> sandbox-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L6'>sandbox</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> <a href='data.mu.html#L1'>program</a>, sandboxes
+<span id="L67" class="LineNr"> 67 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> sandbox-ah
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> <a href='data.mu.html#L6'>sandbox</a>/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L6'>sandbox</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *sandbox-ah
+<span id="L69" class="LineNr"> 69 </span>  <a href='data.mu.html#L73'>initialize-sandbox</a> <a href='data.mu.html#L6'>sandbox</a>, out
+<span id="L70" class="LineNr"> 70 </span><span class="Delimiter">}</span>
+<span id="L71" class="LineNr"> 71 </span>
+<span id="L72" class="LineNr"> 72 </span><span class="muComment"># if 'out' is non-null, save the first word of the sandbox there</span>
+<span id="L73" class="LineNr"> 73 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='data.mu.html#L73'>initialize-sandbox</a></span> _sandbox: (addr <a href='data.mu.html#L6'>sandbox</a>), out: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="Delimiter">{</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="PreProc">var</span> <a href='data.mu.html#L6'>sandbox</a>/<span class="Constant">esi</span>: (addr <a href='data.mu.html#L6'>sandbox</a>) <span class="SpecialChar">&lt;-</span> copy _sandbox
+<span id="L75" class="LineNr"> 75 </span>  <span class="PreProc">var</span> line-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> <a href='data.mu.html#L6'>sandbox</a>, data
+<span id="L76" class="LineNr"> 76 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> line-ah
+<span id="L77" class="LineNr"> 77 </span>  <span class="PreProc">var</span> <a href='data.mu.html#L21'>line</a>/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *line-ah
+<span id="L78" class="LineNr"> 78 </span>  <a href='data.mu.html#L83'>initialize-line</a> <a href='data.mu.html#L21'>line</a>, out
+<span id="L79" class="LineNr"> 79 </span><span class="Delimiter">}</span>
+<span id="L80" class="LineNr"> 80 </span>
+<span id="L81" class="LineNr"> 81 </span><span class="muComment"># initialize line with a single empty word</span>
+<span id="L82" class="LineNr"> 82 </span><span class="muComment"># if 'out' is non-null, save the word there as well</span>
+<span id="L83" class="LineNr"> 83 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='data.mu.html#L83'>initialize-line</a></span> _line: (addr <a href='data.mu.html#L21'>line</a>), out: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="Delimiter">{</span>
+<span id="L84" class="LineNr"> 84 </span>  <span class="PreProc">var</span> <a href='data.mu.html#L21'>line</a>/<span class="Constant">esi</span>: (addr <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> copy _line
+<span id="L85" class="LineNr"> 85 </span>  <span class="PreProc">var</span> word-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> <a href='data.mu.html#L21'>line</a>, data
+<span id="L86" class="LineNr"> 86 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> word-ah
+<span id="L87" class="LineNr"> 87 </span>  <span class="Delimiter">{</span>
+<span id="L88" class="LineNr"> 88 </span>    compare out, <span class="Constant">0</span>
+<span id="L89" class="LineNr"> 89 </span>    <span class="PreProc">break-if-=</span>
+<span id="L90" class="LineNr"> 90 </span>    <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> copy out
+<span id="L91" class="LineNr"> 91 </span>    copy-object word-ah, dest
+<span id="L92" class="LineNr"> 92 </span>  <span class="Delimiter">}</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> <a href='data.mu.html#L29'>word</a>/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *word-ah
+<span id="L94" class="LineNr"> 94 </span>  initialize-word <a href='data.mu.html#L29'>word</a>
+<span id="L95" class="LineNr"> 95 </span><span class="Delimiter">}</span>
+<span id="L96" class="LineNr"> 96 </span>
+<span id="L97" class="LineNr"> 97 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='data.mu.html#L97'>create-primitive-defs</a></span> _self: (addr handle <a href='data.mu.html#L13'>function</a>) <span class="Delimiter">{</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="muComment"># x 2* = x 2 *</span>
+<span id="L99" class="LineNr"> 99 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr handle <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L100" class="LineNr">100 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> self
+<span id="L101" class="LineNr">101 </span>  <span class="PreProc">var</span> _f/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *self
+<span id="L102" class="LineNr">102 </span>  <span class="PreProc">var</span> f/<span class="Constant">esi</span>: (addr <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> copy _f
+<span id="L103" class="LineNr">103 </span>  <span class="PreProc">var</span> name-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, name
+<span id="L104" class="LineNr">104 </span>  <a href='data.mu.html#L182'>populate-text-with</a> name-ah, <span class="Constant">&quot;2*&quot;</span>
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> args-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, args
+<span id="L106" class="LineNr">106 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> args-ah
+<span id="L107" class="LineNr">107 </span>  <span class="PreProc">var</span> args/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *args-ah
+<span id="L108" class="LineNr">108 </span>  initialize-word-with args, <span class="Constant">&quot;x&quot;</span>
+<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> body-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, body
+<span id="L110" class="LineNr">110 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> body-ah
+<span id="L111" class="LineNr">111 </span>  <span class="PreProc">var</span> body/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *body-ah
+<span id="L112" class="LineNr">112 </span>  <a href='data.mu.html#L83'>initialize-line</a> body, <span class="Constant">0</span>
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">var</span> curr-word-ah/<span class="Constant">ecx</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> body, data
+<span id="L114" class="LineNr">114 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L115" class="LineNr">115 </span>  <span class="PreProc">var</span> curr-word/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L116" class="LineNr">116 </span>  initialize-word-with curr-word, <span class="Constant">&quot;x&quot;</span>
+<span id="L117" class="LineNr">117 </span>  curr-word-ah <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L118" class="LineNr">118 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L119" class="LineNr">119 </span>  curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L120" class="LineNr">120 </span>  initialize-word-with curr-word, <span class="Constant">&quot;2&quot;</span>
+<span id="L121" class="LineNr">121 </span>  curr-word-ah <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L122" class="LineNr">122 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L123" class="LineNr">123 </span>  curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L124" class="LineNr">124 </span>  initialize-word-with curr-word, <span class="Constant">&quot;*&quot;</span>
+<span id="L125" class="LineNr">125 </span>  <span class="muComment"># x 1+ = x 1 +</span>
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> next/<span class="Constant">esi</span>: (addr handle <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, next
+<span id="L127" class="LineNr">127 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> next
+<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> _f/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next
+<span id="L129" class="LineNr">129 </span>  <span class="PreProc">var</span> f/<span class="Constant">esi</span>: (addr <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> copy _f
+<span id="L130" class="LineNr">130 </span>  <span class="PreProc">var</span> name-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, name
+<span id="L131" class="LineNr">131 </span>  <a href='data.mu.html#L182'>populate-text-with</a> name-ah, <span class="Constant">&quot;1+&quot;</span>
+<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> args-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, args
+<span id="L133" class="LineNr">133 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> args-ah
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> args/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *args-ah
+<span id="L135" class="LineNr">135 </span>  initialize-word-with args, <span class="Constant">&quot;x&quot;</span>
+<span id="L136" class="LineNr">136 </span>  <span class="PreProc">var</span> body-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, body
+<span id="L137" class="LineNr">137 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> body-ah
+<span id="L138" class="LineNr">138 </span>  <span class="PreProc">var</span> body/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *body-ah
+<span id="L139" class="LineNr">139 </span>  <a href='data.mu.html#L83'>initialize-line</a> body, <span class="Constant">0</span>
+<span id="L140" class="LineNr">140 </span>  <span class="PreProc">var</span> curr-word-ah/<span class="Constant">ecx</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> body, data
+<span id="L141" class="LineNr">141 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L142" class="LineNr">142 </span>  <span class="PreProc">var</span> curr-word/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L143" class="LineNr">143 </span>  initialize-word-with curr-word, <span class="Constant">&quot;x&quot;</span>
+<span id="L144" class="LineNr">144 </span>  curr-word-ah <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L145" class="LineNr">145 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L146" class="LineNr">146 </span>  curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L147" class="LineNr">147 </span>  initialize-word-with curr-word, <span class="Constant">&quot;1&quot;</span>
+<span id="L148" class="LineNr">148 </span>  curr-word-ah <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L149" class="LineNr">149 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L150" class="LineNr">150 </span>  curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L151" class="LineNr">151 </span>  initialize-word-with curr-word, <span class="Constant">&quot;+&quot;</span>
+<span id="L152" class="LineNr">152 </span>  <span class="muComment"># x 2+ = x 1+ 1+</span>
+<span id="L153" class="LineNr">153 </span>  <span class="PreProc">var</span> next/<span class="Constant">esi</span>: (addr handle <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, next
+<span id="L154" class="LineNr">154 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> next
+<span id="L155" class="LineNr">155 </span>  <span class="PreProc">var</span> _f/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next
+<span id="L156" class="LineNr">156 </span>  <span class="PreProc">var</span> f/<span class="Constant">ecx</span>: (addr <a href='data.mu.html#L13'>function</a>) <span class="SpecialChar">&lt;-</span> copy _f
+<span id="L157" class="LineNr">157 </span>  <span class="PreProc">var</span> name-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, name
+<span id="L158" class="LineNr">158 </span>  <a href='data.mu.html#L182'>populate-text-with</a> name-ah, <span class="Constant">&quot;2+&quot;</span>
+<span id="L159" class="LineNr">159 </span>  <span class="PreProc">var</span> args-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, args
+<span id="L160" class="LineNr">160 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> args-ah
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> args/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *args-ah
+<span id="L162" class="LineNr">162 </span>  initialize-word-with args, <span class="Constant">&quot;x&quot;</span>
+<span id="L163" class="LineNr">163 </span>  <span class="PreProc">var</span> body-ah/<span class="Constant">eax</span>: (addr handle <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, body
+<span id="L164" class="LineNr">164 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> body-ah
+<span id="L165" class="LineNr">165 </span>  <span class="PreProc">var</span> body/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L21'>line</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *body-ah
+<span id="L166" class="LineNr">166 </span>  <a href='data.mu.html#L83'>initialize-line</a> body, <span class="Constant">0</span>
+<span id="L167" class="LineNr">167 </span>  <span class="PreProc">var</span> curr-word-ah/<span class="Constant">ecx</span>: (addr handle <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> body, data
+<span id="L168" class="LineNr">168 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L169" class="LineNr">169 </span>  <span class="PreProc">var</span> curr-word/<span class="Constant">eax</span>: (addr <a href='data.mu.html#L29'>word</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L170" class="LineNr">170 </span>  initialize-word-with curr-word, <span class="Constant">&quot;x&quot;</span>
+<span id="L171" class="LineNr">171 </span>  curr-word-ah <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L172" class="LineNr">172 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L173" class="LineNr">173 </span>  curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L174" class="LineNr">174 </span>  initialize-word-with curr-word, <span class="Constant">&quot;1+&quot;</span>
+<span id="L175" class="LineNr">175 </span>  curr-word-ah <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L176" class="LineNr">176 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> curr-word-ah
+<span id="L177" class="LineNr">177 </span>  curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-word-ah
+<span id="L178" class="LineNr">178 </span>  initialize-word-with curr-word, <span class="Constant">&quot;1+&quot;</span>
+<span id="L179" class="LineNr">179 </span>  <span class="muComment"># TODO: populate prev pointers</span>
+<span id="L180" class="LineNr">180 </span><span class="Delimiter">}</span>
+<span id="L181" class="LineNr">181 </span>
+<span id="L182" class="LineNr">182 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='data.mu.html#L182'>populate-text-with</a></span> _out: (addr handle array byte), _in: (addr array byte) <span class="Delimiter">{</span>
+<span id="L183" class="LineNr">183 </span>  <span class="PreProc">var</span> in/<span class="Constant">esi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _in
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> n/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> length in
+<span id="L185" class="LineNr">185 </span>  <span class="PreProc">var</span> out/<span class="Constant">edx</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> copy _out
+<span id="L186" class="LineNr">186 </span>  populate out, n
+<span id="L187" class="LineNr">187 </span>  <span class="PreProc">var</span> _out-addr/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *out
+<span id="L188" class="LineNr">188 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">edx</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _out-addr
+<span id="L189" class="LineNr">189 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L190" class="LineNr">190 </span>  <span class="Delimiter">{</span>
+<span id="L191" class="LineNr">191 </span>    compare i, n
+<span id="L192" class="LineNr">192 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L193" class="LineNr">193 </span>    <span class="PreProc">var</span> src/<span class="Constant">esi</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index in, i
+<span id="L194" class="LineNr">194 </span>    <span class="PreProc">var</span> val/<span class="Constant">ecx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *src
+<span id="L195" class="LineNr">195 </span>    <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index out-addr, i
+<span id="L196" class="LineNr">196 </span>    copy-byte-to *dest, val
+<span id="L197" class="LineNr">197 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L198" class="LineNr">198 </span>    <span class="PreProc">loop</span>
+<span id="L199" class="LineNr">199 </span>  <span class="Delimiter">}</span>
+<span id="L200" class="LineNr">200 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/environment.mu.html b/html/apps/tile/environment.mu.html
new file mode 100644
index 00000000..2b375d76
--- /dev/null
+++ b/html/apps/tile/environment.mu.html
@@ -0,0 +1,521 @@
+<!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 - apps/tile/environment.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/environment.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/environment.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">type</span> <a href='environment.mu.html#L1'>environment</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <a href='../../405screen.mu.html#L9'>screen</a>: (handle <a href='../../405screen.mu.html#L9'>screen</a>)
+<span id="L3" class="LineNr">  3 </span>  program: (handle program)
+<span id="L4" class="LineNr">  4 </span>  cursor-word: (handle word)
+<span id="L5" class="LineNr">  5 </span>  nrows: int
+<span id="L6" class="LineNr">  6 </span>  ncols: int
+<span id="L7" class="LineNr">  7 </span>  code-separator-col: int
+<span id="L8" class="LineNr">  8 </span><span class="Delimiter">}</span>
+<span id="L9" class="LineNr">  9 </span>
+<span id="L10" class="LineNr"> 10 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L10'>initialize-environment</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
+<span id="L11" class="LineNr"> 11 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _env
+<span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
+<span id="L13" class="LineNr"> 13 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> program-ah
+<span id="L14" class="LineNr"> 14 </span>  <span class="PreProc">var</span> program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
+<span id="L15" class="LineNr"> 15 </span>  <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, cursor-word
+<span id="L16" class="LineNr"> 16 </span>  initialize-program program, cursor-word-ah
+<span id="L17" class="LineNr"> 17 </span>  <span class="muComment"># initialize screen</span>
+<span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L19" class="LineNr"> 19 </span>  <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L20" class="LineNr"> 20 </span>  <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy _screen
+<span id="L21" class="LineNr"> 21 </span>  <span class="PreProc">var</span> nrows/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L22" class="LineNr"> 22 </span>  <span class="PreProc">var</span> ncols/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L23" class="LineNr"> 23 </span>  nrows, ncols <span class="SpecialChar">&lt;-</span> <a href='../../405screen.mu.html#L60'>screen-size</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L24" class="LineNr"> 24 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, nrows
+<span id="L25" class="LineNr"> 25 </span>  copy-to *dest, nrows
+<span id="L26" class="LineNr"> 26 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, ncols
+<span id="L27" class="LineNr"> 27 </span>  copy-to *dest, ncols
+<span id="L28" class="LineNr"> 28 </span>  <span class="PreProc">var</span> repl-col/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy ncols
+<span id="L29" class="LineNr"> 29 </span>  repl-col <span class="SpecialChar">&lt;-</span> shift-right <span class="Constant">1</span>
+<span id="L30" class="LineNr"> 30 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
+<span id="L31" class="LineNr"> 31 </span>  copy-to *dest, repl-col
+<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span>
+<span id="L33" class="LineNr"> 33 </span>
+<span id="L34" class="LineNr"> 34 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L34'>draw-screen</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _env
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L37" class="LineNr"> 37 </span>  <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L38" class="LineNr"> 38 </span>  <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy _screen
+<span id="L39" class="LineNr"> 39 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *dest
+<span id="L41" class="LineNr"> 41 </span>  <a href='environment.mu.html#L400'>clear-canvas</a> env
+<span id="L42" class="LineNr"> 42 </span>  tmp <span class="SpecialChar">&lt;-</span> add <span class="Constant">2</span>  <span class="muComment"># repl-margin-left</span>
+<span id="L43" class="LineNr"> 43 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>, tmp  <span class="muComment"># input-row</span>
+<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">}</span>
+<span id="L45" class="LineNr"> 45 </span>
+<span id="L46" class="LineNr"> 46 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L46'>initialize-environment-with-fake-screen</a></span> _self: (addr <a href='environment.mu.html#L1'>environment</a>), nrows: int, ncols: int <span class="Delimiter">{</span>
+<span id="L47" class="LineNr"> 47 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L49" class="LineNr"> 49 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> screen-ah
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L51" class="LineNr"> 51 </span>  <a href='../../405screen.mu.html#L30'>initialize-screen</a> screen-addr, nrows, ncols
+<span id="L52" class="LineNr"> 52 </span>  <a href='environment.mu.html#L10'>initialize-environment</a> self
+<span id="L53" class="LineNr"> 53 </span><span class="Delimiter">}</span>
+<span id="L54" class="LineNr"> 54 </span>
+<span id="L55" class="LineNr"> 55 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L55'>process</a></span> _self: (addr <a href='environment.mu.html#L1'>environment</a>), key: grapheme <span class="Delimiter">{</span>
+<span id="L56" class="LineNr"> 56 </span>$process:body: <span class="Delimiter">{</span>
+<span id="L57" class="LineNr"> 57 </span>    <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L58" class="LineNr"> 58 </span>    compare key, <span class="Constant">0x445b1b</span>  <span class="muComment"># left-arrow</span>
+<span id="L59" class="LineNr"> 59 </span>    <span class="Delimiter">{</span>
+<span id="L60" class="LineNr"> 60 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L61" class="LineNr"> 61 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
+<span id="L62" class="LineNr"> 62 </span>      <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L63" class="LineNr"> 63 </span>      <span class="PreProc">var</span> cursor-word/<span class="Constant">ecx</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _cursor-word
+<span id="L64" class="LineNr"> 64 </span>      <span class="muComment"># if not at start, move left within current word</span>
+<span id="L65" class="LineNr"> 65 </span>      <span class="PreProc">var</span> at-start?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> cursor-at-start? cursor-word
+<span id="L66" class="LineNr"> 66 </span>      compare at-start?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L67" class="LineNr"> 67 </span>      <span class="Delimiter">{</span>
+<span id="L68" class="LineNr"> 68 </span>        <span class="PreProc">break-if-=</span>
+<span id="L69" class="LineNr"> 69 </span>        cursor-left cursor-word
+<span id="L70" class="LineNr"> 70 </span>        <span class="PreProc">break</span> $process:body
+<span id="L71" class="LineNr"> 71 </span>      <span class="Delimiter">}</span>
+<span id="L72" class="LineNr"> 72 </span>      <span class="muComment"># otherwise, move to end of prev word</span>
+<span id="L73" class="LineNr"> 73 </span>      <span class="PreProc">var</span> prev-word-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, prev
+<span id="L74" class="LineNr"> 74 </span>      <span class="PreProc">var</span> prev-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-word-ah
+<span id="L75" class="LineNr"> 75 </span>      <span class="Delimiter">{</span>
+<span id="L76" class="LineNr"> 76 </span>        compare prev-word, <span class="Constant">0</span>
+<span id="L77" class="LineNr"> 77 </span>        <span class="PreProc">break-if-=</span>
+<span id="L78" class="LineNr"> 78 </span>        copy-object prev-word-ah, cursor-word-ah
+<span id="L79" class="LineNr"> 79 </span>        cursor-to-end prev-word
+<span id="L80" class="LineNr"> 80 </span>      <span class="Delimiter">}</span>
+<span id="L81" class="LineNr"> 81 </span>      <span class="PreProc">break</span> $process:body
+<span id="L82" class="LineNr"> 82 </span>    <span class="Delimiter">}</span>
+<span id="L83" class="LineNr"> 83 </span>    compare key, <span class="Constant">0x435b1b</span>  <span class="muComment"># right-arrow</span>
+<span id="L84" class="LineNr"> 84 </span>    <span class="Delimiter">{</span>
+<span id="L85" class="LineNr"> 85 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L86" class="LineNr"> 86 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
+<span id="L87" class="LineNr"> 87 </span>      <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L88" class="LineNr"> 88 </span>      <span class="PreProc">var</span> cursor-word/<span class="Constant">ecx</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _cursor-word
+<span id="L89" class="LineNr"> 89 </span>      <span class="muComment"># if not at end, move right within current word</span>
+<span id="L90" class="LineNr"> 90 </span>      <span class="PreProc">var</span> at-end?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> cursor-at-end? cursor-word
+<span id="L91" class="LineNr"> 91 </span>      compare at-end?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L92" class="LineNr"> 92 </span>      <span class="Delimiter">{</span>
+<span id="L93" class="LineNr"> 93 </span>        <span class="PreProc">break-if-=</span>
+<span id="L94" class="LineNr"> 94 </span>        cursor-right cursor-word
+<span id="L95" class="LineNr"> 95 </span>        <span class="PreProc">break</span> $process:body
+<span id="L96" class="LineNr"> 96 </span>      <span class="Delimiter">}</span>
+<span id="L97" class="LineNr"> 97 </span>      <span class="muComment"># otherwise, move to start of next word</span>
+<span id="L98" class="LineNr"> 98 </span>      <span class="PreProc">var</span> next-word-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, next
+<span id="L99" class="LineNr"> 99 </span>      <span class="PreProc">var</span> <a href='../../127next-word.subx.html#L10'>next-word</a>/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-word-ah
+<span id="L100" class="LineNr">100 </span>      <span class="Delimiter">{</span>
+<span id="L101" class="LineNr">101 </span>        compare <a href='../../127next-word.subx.html#L10'>next-word</a>, <span class="Constant">0</span>
+<span id="L102" class="LineNr">102 </span>        <span class="PreProc">break-if-=</span>
+<span id="L103" class="LineNr">103 </span>        copy-object next-word-ah, cursor-word-ah
+<span id="L104" class="LineNr">104 </span>        cursor-to-start <a href='../../127next-word.subx.html#L10'>next-word</a>
+<span id="L105" class="LineNr">105 </span>      <span class="Delimiter">}</span>
+<span id="L106" class="LineNr">106 </span>      <span class="PreProc">break</span> $process:body
+<span id="L107" class="LineNr">107 </span>    <span class="Delimiter">}</span>
+<span id="L108" class="LineNr">108 </span>    compare key, <span class="Constant">0x7f</span>  <span class="muComment"># del (backspace on Macs)</span>
+<span id="L109" class="LineNr">109 </span>    <span class="Delimiter">{</span>
+<span id="L110" class="LineNr">110 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L111" class="LineNr">111 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
+<span id="L112" class="LineNr">112 </span>      <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L113" class="LineNr">113 </span>      <span class="PreProc">var</span> cursor-word/<span class="Constant">ecx</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _cursor-word
+<span id="L114" class="LineNr">114 </span>      <span class="muComment"># if not at start of some word, delete grapheme before cursor within current word</span>
+<span id="L115" class="LineNr">115 </span>      <span class="PreProc">var</span> at-start?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> cursor-at-start? cursor-word
+<span id="L116" class="LineNr">116 </span>      compare at-start?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L117" class="LineNr">117 </span>      <span class="Delimiter">{</span>
+<span id="L118" class="LineNr">118 </span>        <span class="PreProc">break-if-=</span>
+<span id="L119" class="LineNr">119 </span>        delete-before-cursor cursor-word
+<span id="L120" class="LineNr">120 </span>        <span class="PreProc">break</span> $process:body
+<span id="L121" class="LineNr">121 </span>      <span class="Delimiter">}</span>
+<span id="L122" class="LineNr">122 </span>      <span class="muComment"># otherwise delete current word and move to end of prev word</span>
+<span id="L123" class="LineNr">123 </span>      <span class="PreProc">var</span> prev-word-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, prev
+<span id="L124" class="LineNr">124 </span>      <span class="PreProc">var</span> prev-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-word-ah
+<span id="L125" class="LineNr">125 </span>      <span class="Delimiter">{</span>
+<span id="L126" class="LineNr">126 </span>        compare prev-word, <span class="Constant">0</span>
+<span id="L127" class="LineNr">127 </span>        <span class="PreProc">break-if-=</span>
+<span id="L128" class="LineNr">128 </span>        copy-object prev-word-ah, cursor-word-ah
+<span id="L129" class="LineNr">129 </span>        cursor-to-end prev-word
+<span id="L130" class="LineNr">130 </span>        delete-next prev-word
+<span id="L131" class="LineNr">131 </span>      <span class="Delimiter">}</span>
+<span id="L132" class="LineNr">132 </span>      <span class="PreProc">break</span> $process:body
+<span id="L133" class="LineNr">133 </span>    <span class="Delimiter">}</span>
+<span id="L134" class="LineNr">134 </span>    compare key, <span class="Constant">0x20</span>  <span class="muComment"># space</span>
+<span id="L135" class="LineNr">135 </span>    <span class="Delimiter">{</span>
+<span id="L136" class="LineNr">136 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L137" class="LineNr">137 </span>      <span class="muComment"># insert new word</span>
+<span id="L138" class="LineNr">138 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
+<span id="L139" class="LineNr">139 </span>      append-word cursor-word-ah
+<span id="L140" class="LineNr">140 </span>      <span class="PreProc">var</span> cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L141" class="LineNr">141 </span>      <span class="PreProc">var</span> next-word-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, next
+<span id="L142" class="LineNr">142 </span>      copy-object next-word-ah, cursor-word-ah
+<span id="L143" class="LineNr">143 </span>      <span class="PreProc">break</span> $process:body
+<span id="L144" class="LineNr">144 </span>    <span class="Delimiter">}</span>
+<span id="L145" class="LineNr">145 </span>    compare key, <span class="Constant">0xa</span>  <span class="muComment"># enter</span>
+<span id="L146" class="LineNr">146 </span>    <span class="Delimiter">{</span>
+<span id="L147" class="LineNr">147 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L148" class="LineNr">148 </span>      <span class="muComment"># toggle display of subsidiary stack</span>
+<span id="L149" class="LineNr">149 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
+<span id="L150" class="LineNr">150 </span>      <span class="PreProc">var</span> cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L151" class="LineNr">151 </span>      <span class="PreProc">var</span> display-subsidiary-stack?/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, display-subsidiary-stack?
+<span id="L152" class="LineNr">152 </span>      <span class="PreProc">var</span> tmp/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L153" class="LineNr">153 </span>      tmp <span class="SpecialChar">&lt;-</span> subtract *display-subsidiary-stack?
+<span id="L154" class="LineNr">154 </span>      copy-to *display-subsidiary-stack?, tmp
+<span id="L155" class="LineNr">155 </span>      <span class="PreProc">break</span> $process:body
+<span id="L156" class="LineNr">156 </span>    <span class="Delimiter">}</span>
+<span id="L157" class="LineNr">157 </span>    <span class="muComment"># otherwise insert key within current word</span>
+<span id="L158" class="LineNr">158 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy key
+<span id="L159" class="LineNr">159 </span>    <span class="PreProc">var</span> print?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='environment.mu.html#L418'>real-grapheme?</a> key
+<span id="L160" class="LineNr">160 </span>    <span class="Delimiter">{</span>
+<span id="L161" class="LineNr">161 </span>      compare print?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L162" class="LineNr">162 </span>      <span class="PreProc">break-if-=</span>
+<span id="L163" class="LineNr">163 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
+<span id="L164" class="LineNr">164 </span>      <span class="PreProc">var</span> cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L165" class="LineNr">165 </span>      add-grapheme-to-word cursor-word, g
+<span id="L166" class="LineNr">166 </span>      <span class="PreProc">break</span> $process:body
+<span id="L167" class="LineNr">167 </span>    <span class="Delimiter">}</span>
+<span id="L168" class="LineNr">168 </span>    <span class="muComment"># silently ignore other hotkeys</span>
+<span id="L169" class="LineNr">169 </span><span class="Delimiter">}</span>
+<span id="L170" class="LineNr">170 </span><span class="Delimiter">}</span>
+<span id="L171" class="LineNr">171 </span>
+<span id="L172" class="LineNr">172 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L172'>evaluate-environment</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>), stack: (addr value-stack) <span class="Delimiter">{</span>
+<span id="L173" class="LineNr">173 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _env
+<span id="L174" class="LineNr">174 </span>  <span class="muComment"># program</span>
+<span id="L175" class="LineNr">175 </span>  <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
+<span id="L176" class="LineNr">176 </span>  <span class="PreProc">var</span> _program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
+<span id="L177" class="LineNr">177 </span>  <span class="PreProc">var</span> program/<span class="Constant">esi</span>: (addr program) <span class="SpecialChar">&lt;-</span> copy _program
+<span id="L178" class="LineNr">178 </span>  <span class="muComment"># defs</span>
+<span id="L179" class="LineNr">179 </span>  <span class="PreProc">var</span> defs/<span class="Constant">edx</span>: (addr handle function) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> program, defs
+<span id="L180" class="LineNr">180 </span>  <span class="muComment"># line</span>
+<span id="L181" class="LineNr">181 </span>  <span class="PreProc">var</span> sandbox-ah/<span class="Constant">esi</span>: (addr handle sandbox) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> program, sandboxes
+<span id="L182" class="LineNr">182 </span>  <span class="PreProc">var</span> sandbox/<span class="Constant">eax</span>: (addr sandbox) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *sandbox-ah
+<span id="L183" class="LineNr">183 </span>  <span class="PreProc">var</span> line-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> sandbox, data
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> _line/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *line-ah
+<span id="L185" class="LineNr">185 </span>  <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar">&lt;-</span> copy _line
+<span id="L186" class="LineNr">186 </span>  evaluate defs, <span class="Constant">0</span>, line, <span class="Constant">0</span>, stack
+<span id="L187" class="LineNr">187 </span><span class="Delimiter">}</span>
+<span id="L188" class="LineNr">188 </span>
+<span id="L189" class="LineNr">189 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L189'>render</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
+<span id="L190" class="LineNr">190 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _env
+<span id="L191" class="LineNr">191 </span>  <a href='environment.mu.html#L400'>clear-canvas</a> env
+<span id="L192" class="LineNr">192 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">edi</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L193" class="LineNr">193 </span>  <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L194" class="LineNr">194 </span>  <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy _screen
+<span id="L195" class="LineNr">195 </span>  <span class="PreProc">var</span> _repl-col/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
+<span id="L196" class="LineNr">196 </span>  <span class="PreProc">var</span> repl-col/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy *_repl-col
+<span id="L197" class="LineNr">197 </span>  repl-col <span class="SpecialChar">&lt;-</span> add <span class="Constant">2</span>  <span class="muComment"># repl-margin-left</span>
+<span id="L198" class="LineNr">198 </span>  <span class="muComment"># cursor-word</span>
+<span id="L199" class="LineNr">199 </span>  <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">ebx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, cursor-word
+<span id="L200" class="LineNr">200 </span>  <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
+<span id="L201" class="LineNr">201 </span>  <span class="PreProc">var</span> cursor-word/<span class="Constant">ebx</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _cursor-word
+<span id="L202" class="LineNr">202 </span>  <span class="muComment"># program</span>
+<span id="L203" class="LineNr">203 </span>  <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
+<span id="L204" class="LineNr">204 </span>  <span class="PreProc">var</span> _program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
+<span id="L205" class="LineNr">205 </span>  <span class="PreProc">var</span> program/<span class="Constant">esi</span>: (addr program) <span class="SpecialChar">&lt;-</span> copy _program
+<span id="L206" class="LineNr">206 </span>  <span class="muComment"># defs</span>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> defs/<span class="Constant">edx</span>: (addr handle function) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> program, defs
+<span id="L208" class="LineNr">208 </span>  <span class="muComment"># line</span>
+<span id="L209" class="LineNr">209 </span>  <span class="PreProc">var</span> sandbox-ah/<span class="Constant">esi</span>: (addr handle sandbox) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> program, sandboxes
+<span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> sandbox/<span class="Constant">eax</span>: (addr sandbox) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *sandbox-ah
+<span id="L211" class="LineNr">211 </span>  <span class="PreProc">var</span> line-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> sandbox, data
+<span id="L212" class="LineNr">212 </span>  <span class="PreProc">var</span> _line/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *line-ah
+<span id="L213" class="LineNr">213 </span>  <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar">&lt;-</span> copy _line
+<span id="L214" class="LineNr">214 </span>  <span class="muComment"># cursor-col</span>
+<span id="L215" class="LineNr">215 </span>  <span class="PreProc">var</span> cursor-col: int
+<span id="L216" class="LineNr">216 </span>  <span class="PreProc">var</span> cursor-col-a/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> address cursor-col
+<span id="L217" class="LineNr">217 </span>  <span class="muComment">#</span>
+<span id="L218" class="LineNr">218 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='environment.mu.html#L222'>render-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, defs, <span class="Constant">0</span>, line, <span class="Constant">3</span>, repl-col, cursor-word, cursor-col-a  <span class="muComment"># input-row=3</span>
+<span id="L219" class="LineNr">219 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>, cursor-col  <span class="muComment"># input-row</span>
+<span id="L220" class="LineNr">220 </span><span class="Delimiter">}</span>
+<span id="L221" class="LineNr">221 </span>
+<span id="L222" class="LineNr">222 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L222'>render-line</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), defs: (addr handle function), bindings: (addr table), _line: (addr line), top-row: int, left-col: int, cursor-word: (addr word), cursor-col-a: (addr int)<span class="PreProc"> -&gt; </span>right-col/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L223" class="LineNr">223 </span>  <span class="muComment"># curr-word</span>
+<span id="L224" class="LineNr">224 </span>  <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar">&lt;-</span> copy _line
+<span id="L225" class="LineNr">225 </span>  <span class="PreProc">var</span> first-word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> line, data
+<span id="L226" class="LineNr">226 </span>  <span class="PreProc">var</span> curr-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *first-word-ah
+<span id="L227" class="LineNr">227 </span>  <span class="muComment"># loop-carried dependency</span>
+<span id="L228" class="LineNr">228 </span>  <span class="PreProc">var</span> curr-col/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy left-col
+<span id="L229" class="LineNr">229 </span>  <span class="muComment">#</span>
+<span id="L230" class="LineNr">230 </span>  <span class="Delimiter">{</span>
+<span id="L231" class="LineNr">231 </span>    compare curr-word, <span class="Constant">0</span>
+<span id="L232" class="LineNr">232 </span>    <span class="PreProc">break-if-=</span>
+<span id="L233" class="LineNr">233 </span>    <span class="muComment"># if necessary, first render columns for subsidiary stack</span>
+<span id="L234" class="LineNr">234 </span>    $render-line:subsidiary: <span class="Delimiter">{</span>
+<span id="L235" class="LineNr">235 </span>      <span class="Delimiter">{</span>
+<span id="L236" class="LineNr">236 </span>        <span class="PreProc">var</span> display-subsidiary-stack?/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, display-subsidiary-stack?
+<span id="L237" class="LineNr">237 </span>        compare *display-subsidiary-stack?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L238" class="LineNr">238 </span>        <span class="PreProc">break-if-=</span> $render-line:subsidiary
+<span id="L239" class="LineNr">239 </span>      <span class="Delimiter">}</span>
+<span id="L240" class="LineNr">240 </span>      <span class="muComment"># does function exist?</span>
+<span id="L241" class="LineNr">241 </span>      <span class="PreProc">var</span> callee/<span class="Constant">edi</span>: (addr function) <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L242" class="LineNr">242 </span>      <span class="Delimiter">{</span>
+<span id="L243" class="LineNr">243 </span>        <span class="PreProc">var</span> curr-stream-storage: (stream byte <span class="Constant">0x10</span>)
+<span id="L244" class="LineNr">244 </span>        <span class="PreProc">var</span> curr-stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address curr-stream-storage
+<span id="L245" class="LineNr">245 </span>        emit-word curr-word, curr-stream
+<span id="L246" class="LineNr">246 </span>        <span class="PreProc">var</span> callee-h: (handle function)
+<span id="L247" class="LineNr">247 </span>        <span class="PreProc">var</span> callee-ah/<span class="Constant">eax</span>: (addr handle function) <span class="SpecialChar">&lt;-</span> address callee-h
+<span id="L248" class="LineNr">248 </span>        find-function defs, curr-stream, callee-ah
+<span id="L249" class="LineNr">249 </span>        <span class="PreProc">var</span> _callee/<span class="Constant">eax</span>: (addr function) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *callee-ah
+<span id="L250" class="LineNr">250 </span>        callee <span class="SpecialChar">&lt;-</span> copy _callee
+<span id="L251" class="LineNr">251 </span>        compare callee, <span class="Constant">0</span>
+<span id="L252" class="LineNr">252 </span>        <span class="PreProc">break-if-=</span> $render-line:subsidiary
+<span id="L253" class="LineNr">253 </span>      <span class="Delimiter">}</span>
+<span id="L254" class="LineNr">254 </span>      <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, top-row, curr-col
+<span id="L255" class="LineNr">255 </span>      print-word <a href='../../405screen.mu.html#L9'>screen</a>, curr-word
+<span id="L256" class="LineNr">256 </span>      <span class="Delimiter">{</span>
+<span id="L257" class="LineNr">257 </span>        <span class="PreProc">var</span> word-len/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> word-length curr-word
+<span id="L258" class="LineNr">258 </span>        curr-col <span class="SpecialChar">&lt;-</span> add word-len
+<span id="L259" class="LineNr">259 </span>        curr-col <span class="SpecialChar">&lt;-</span> add <span class="Constant">2</span>
+<span id="L260" class="LineNr">260 </span>        add-to top-row, <span class="Constant">1</span>
+<span id="L261" class="LineNr">261 </span>      <span class="Delimiter">}</span>
+<span id="L262" class="LineNr">262 </span>      <span class="muComment"># obtain stack at call site</span>
+<span id="L263" class="LineNr">263 </span>      <span class="PreProc">var</span> stack-storage: value-stack
+<span id="L264" class="LineNr">264 </span>      <span class="PreProc">var</span> stack/<span class="Constant">edx</span>: (addr value-stack) <span class="SpecialChar">&lt;-</span> address stack-storage
+<span id="L265" class="LineNr">265 </span>      initialize-value-stack stack, <span class="Constant">0x10</span>
+<span id="L266" class="LineNr">266 </span>      <span class="Delimiter">{</span>
+<span id="L267" class="LineNr">267 </span>        <span class="PreProc">var</span> prev-word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, prev
+<span id="L268" class="LineNr">268 </span>        <span class="PreProc">var</span> prev-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-word-ah
+<span id="L269" class="LineNr">269 </span>        compare prev-word, <span class="Constant">0</span>
+<span id="L270" class="LineNr">270 </span>        <span class="PreProc">break-if-=</span>
+<span id="L271" class="LineNr">271 </span>        evaluate defs, bindings, line, prev-word, stack
+<span id="L272" class="LineNr">272 </span>      <span class="Delimiter">}</span>
+<span id="L273" class="LineNr">273 </span>      <span class="muComment"># construct new bindings</span>
+<span id="L274" class="LineNr">274 </span>      <span class="PreProc">var</span> callee-bindings-storage: table
+<span id="L275" class="LineNr">275 </span>      <span class="PreProc">var</span> callee-bindings/<span class="Constant">esi</span>: (addr table) <span class="SpecialChar">&lt;-</span> address callee-bindings-storage
+<span id="L276" class="LineNr">276 </span>      initialize-table callee-bindings, <span class="Constant">0x10</span>
+<span id="L277" class="LineNr">277 </span>      bind-args callee, stack, callee-bindings
+<span id="L278" class="LineNr">278 </span>      <span class="muComment"># obtain body</span>
+<span id="L279" class="LineNr">279 </span>      <span class="PreProc">var</span> callee-body-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> callee, body
+<span id="L280" class="LineNr">280 </span>      <span class="PreProc">var</span> callee-body/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *callee-body-ah
+<span id="L281" class="LineNr">281 </span>      # - render subsidiary stack
+<span id="L282" class="LineNr">282 </span>      curr-col <span class="SpecialChar">&lt;-</span> <a href='environment.mu.html#L222'>render-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, defs, callee-bindings, callee-body, top-row, curr-col, cursor-word, cursor-col-a
+<span id="L283" class="LineNr">283 </span>      <span class="muComment">#</span>
+<span id="L284" class="LineNr">284 </span>      <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, top-row, curr-col
+<span id="L285" class="LineNr">285 </span>      <a href='../../405screen.mu.html#L422'>print-code-point</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x21d7</span>  <span class="muComment"># ⇗</span>
+<span id="L286" class="LineNr">286 </span>      <span class="muComment">#</span>
+<span id="L287" class="LineNr">287 </span>      curr-col <span class="SpecialChar">&lt;-</span> add <span class="Constant">2</span>
+<span id="L288" class="LineNr">288 </span>      subtract-from top-row, <span class="Constant">1</span>
+<span id="L289" class="LineNr">289 </span>    <span class="Delimiter">}</span>
+<span id="L290" class="LineNr">290 </span>    <span class="muComment"># now render main column</span>
+<span id="L291" class="LineNr">291 </span>    curr-col <span class="SpecialChar">&lt;-</span> <a href='environment.mu.html#L308'>render-column</a> <a href='../../405screen.mu.html#L9'>screen</a>, defs, bindings, line, curr-word, top-row, curr-col, cursor-word, cursor-col-a
+<span id="L292" class="LineNr">292 </span>    <span class="PreProc">var</span> next-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L293" class="LineNr">293 </span>    curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-word-ah
+<span id="L294" class="LineNr">294 </span>    <span class="PreProc">loop</span>
+<span id="L295" class="LineNr">295 </span>  <span class="Delimiter">}</span>
+<span id="L296" class="LineNr">296 </span>  right-col <span class="SpecialChar">&lt;-</span> copy curr-col
+<span id="L297" class="LineNr">297 </span><span class="Delimiter">}</span>
+<span id="L298" class="LineNr">298 </span>
+<span id="L299" class="LineNr">299 </span><span class="muComment"># Render:</span>
+<span id="L300" class="LineNr">300 </span><span class="muComment">#   - starting at top-row, left-col: final-word</span>
+<span id="L301" class="LineNr">301 </span><span class="muComment">#   - starting somewhere below at left-col: the stack result from interpreting first-world to final-word (inclusive)</span>
+<span id="L302" class="LineNr">302 </span><span class="muComment">#     unless final-word is truly the final word, in which case it might be incomplete</span>
+<span id="L303" class="LineNr">303 </span><span class="muComment">#</span>
+<span id="L304" class="LineNr">304 </span><span class="muComment"># Outputs:</span>
+<span id="L305" class="LineNr">305 </span># - Return the farthest column written.
+<span id="L306" class="LineNr">306 </span># - If final-word is same as cursor-word, do some additional computation to set
+<span id="L307" class="LineNr">307 </span><span class="muComment">#   cursor-col-a.</span>
+<span id="L308" class="LineNr">308 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L308'>render-column</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), defs: (addr handle function), bindings: (addr table), scratch: (addr line), final-word: (addr word), top-row: int, left-col: int, cursor-word: (addr word), cursor-col-a: (addr int)<span class="PreProc"> -&gt; </span>right-col/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L309" class="LineNr">309 </span>  <span class="PreProc">var</span> max-width/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L310" class="LineNr">310 </span>  <span class="Delimiter">{</span>
+<span id="L311" class="LineNr">311 </span>    <span class="muComment"># indent stack</span>
+<span id="L312" class="LineNr">312 </span>    <span class="PreProc">var</span> indented-col/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy left-col
+<span id="L313" class="LineNr">313 </span>    indented-col <span class="SpecialChar">&lt;-</span> add <span class="Constant">1</span>  <span class="muComment"># margin-right - 2 for padding spaces</span>
+<span id="L314" class="LineNr">314 </span>    <span class="muComment"># compute stack</span>
+<span id="L315" class="LineNr">315 </span>    <span class="PreProc">var</span> stack: value-stack
+<span id="L316" class="LineNr">316 </span>    <span class="PreProc">var</span> stack-addr/<span class="Constant">edi</span>: (addr value-stack) <span class="SpecialChar">&lt;-</span> address stack
+<span id="L317" class="LineNr">317 </span>    initialize-value-stack stack-addr, <span class="Constant">0x10</span>  <span class="muComment"># max-words</span>
+<span id="L318" class="LineNr">318 </span>    evaluate defs, bindings, scratch, final-word, stack-addr
+<span id="L319" class="LineNr">319 </span>    <span class="muComment"># render stack</span>
+<span id="L320" class="LineNr">320 </span>    <span class="PreProc">var</span> curr-row/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy top-row
+<span id="L321" class="LineNr">321 </span>    curr-row <span class="SpecialChar">&lt;-</span> add <span class="Constant">3</span>  <span class="muComment"># stack-margin-top</span>
+<span id="L322" class="LineNr">322 </span>    <span class="PreProc">var</span> _max-width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> value-stack-max-width stack-addr
+<span id="L323" class="LineNr">323 </span>    <span class="PreProc">var</span> max-width/<span class="Constant">esi</span>: int <span class="SpecialChar">&lt;-</span> copy _max-width
+<span id="L324" class="LineNr">324 </span>    <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> value-stack-length stack-addr
+<span id="L325" class="LineNr">325 </span>    <span class="Delimiter">{</span>
+<span id="L326" class="LineNr">326 </span>      compare i, <span class="Constant">0</span>
+<span id="L327" class="LineNr">327 </span>      <span class="PreProc">break-if-&lt;=</span>
+<span id="L328" class="LineNr">328 </span>      <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, curr-row, indented-col
+<span id="L329" class="LineNr">329 </span>      <span class="Delimiter">{</span>
+<span id="L330" class="LineNr">330 </span>        <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack stack-addr
+<span id="L331" class="LineNr">331 </span>        <a href='environment.mu.html#L372'>render-integer</a> <a href='../../405screen.mu.html#L9'>screen</a>, val, max-width
+<span id="L332" class="LineNr">332 </span>        <span class="PreProc">var</span> <a href='../../307size.subx.html#L5'>size</a>/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='../../311decimal-int.subx.html#L287'>decimal-size</a> val
+<span id="L333" class="LineNr">333 </span>        compare <a href='../../307size.subx.html#L5'>size</a>, max-width
+<span id="L334" class="LineNr">334 </span>        <span class="PreProc">break-if-&lt;=</span>
+<span id="L335" class="LineNr">335 </span>        max-width <span class="SpecialChar">&lt;-</span> copy <a href='../../307size.subx.html#L5'>size</a>
+<span id="L336" class="LineNr">336 </span>      <span class="Delimiter">}</span>
+<span id="L337" class="LineNr">337 </span>      curr-row <span class="SpecialChar">&lt;-</span> increment
+<span id="L338" class="LineNr">338 </span>      i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L339" class="LineNr">339 </span>      <span class="PreProc">loop</span>
+<span id="L340" class="LineNr">340 </span>    <span class="Delimiter">}</span>
+<span id="L341" class="LineNr">341 </span>  <span class="Delimiter">}</span>
+<span id="L342" class="LineNr">342 </span>
+<span id="L343" class="LineNr">343 </span>  <span class="muComment"># render word, initialize result</span>
+<span id="L344" class="LineNr">344 </span>  <a href='../../405screen.mu.html#L496'>reset-formatting</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L345" class="LineNr">345 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, top-row, left-col
+<span id="L346" class="LineNr">346 </span>  print-word <a href='../../405screen.mu.html#L9'>screen</a>, final-word
+<span id="L347" class="LineNr">347 </span>  <span class="Delimiter">{</span>
+<span id="L348" class="LineNr">348 </span>    <span class="PreProc">var</span> <a href='../../307size.subx.html#L5'>size</a>/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> word-length final-word
+<span id="L349" class="LineNr">349 </span>    compare <a href='../../307size.subx.html#L5'>size</a>, max-width
+<span id="L350" class="LineNr">350 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L351" class="LineNr">351 </span>    max-width <span class="SpecialChar">&lt;-</span> copy <a href='../../307size.subx.html#L5'>size</a>
+<span id="L352" class="LineNr">352 </span>  <span class="Delimiter">}</span>
+<span id="L353" class="LineNr">353 </span>
+<span id="L354" class="LineNr">354 </span>  <span class="muComment"># update cursor</span>
+<span id="L355" class="LineNr">355 </span>  <span class="Delimiter">{</span>
+<span id="L356" class="LineNr">356 </span>    <span class="PreProc">var</span> f/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy final-word
+<span id="L357" class="LineNr">357 </span>    compare f, cursor-word
+<span id="L358" class="LineNr">358 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L359" class="LineNr">359 </span>    <span class="PreProc">var</span> cursor-index/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> cursor-index cursor-word
+<span id="L360" class="LineNr">360 </span>    cursor-index <span class="SpecialChar">&lt;-</span> add left-col
+<span id="L361" class="LineNr">361 </span>    <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> copy cursor-col-a
+<span id="L362" class="LineNr">362 </span>    copy-to *dest, cursor-index
+<span id="L363" class="LineNr">363 </span>  <span class="Delimiter">}</span>
+<span id="L364" class="LineNr">364 </span>
+<span id="L365" class="LineNr">365 </span>  <span class="muComment"># post-process right-col</span>
+<span id="L366" class="LineNr">366 </span>  right-col <span class="SpecialChar">&lt;-</span> copy max-width
+<span id="L367" class="LineNr">367 </span>  right-col <span class="SpecialChar">&lt;-</span> add left-col
+<span id="L368" class="LineNr">368 </span>  right-col <span class="SpecialChar">&lt;-</span> add <span class="Constant">3</span>  <span class="muComment"># margin-right</span>
+<span id="L369" class="LineNr">369 </span><span class="Delimiter">}</span>
+<span id="L370" class="LineNr">370 </span>
+<span id="L371" class="LineNr">371 </span><span class="muComment"># synaesthesia</span>
+<span id="L372" class="LineNr">372 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L372'>render-integer</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), val: int, max-width: int <span class="Delimiter">{</span>
+<span id="L373" class="LineNr">373 </span>  <span class="PreProc">var</span> bg/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='environment.mu.html#L396'>hash-color</a> val
+<span id="L374" class="LineNr">374 </span>  <span class="PreProc">var</span> fg/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">7</span>
+<span id="L375" class="LineNr">375 </span>  <span class="Delimiter">{</span>
+<span id="L376" class="LineNr">376 </span>    compare bg, <span class="Constant">2</span>
+<span id="L377" class="LineNr">377 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L378" class="LineNr">378 </span>    fg <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L379" class="LineNr">379 </span>  <span class="Delimiter">}</span>
+<span id="L380" class="LineNr">380 </span>  <span class="Delimiter">{</span>
+<span id="L381" class="LineNr">381 </span>    compare bg, <span class="Constant">3</span>
+<span id="L382" class="LineNr">382 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L383" class="LineNr">383 </span>    fg <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L384" class="LineNr">384 </span>  <span class="Delimiter">}</span>
+<span id="L385" class="LineNr">385 </span>  <span class="Delimiter">{</span>
+<span id="L386" class="LineNr">386 </span>    compare bg, <span class="Constant">6</span>
+<span id="L387" class="LineNr">387 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L388" class="LineNr">388 </span>    fg <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L389" class="LineNr">389 </span>  <span class="Delimiter">}</span>
+<span id="L390" class="LineNr">390 </span>  <a href='../../405screen.mu.html#L518'>start-color</a> <a href='../../405screen.mu.html#L9'>screen</a>, fg, bg
+<span id="L391" class="LineNr">391 </span>  <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>  <span class="muComment"># space</span>
+<span id="L392" class="LineNr">392 </span>  <a href='../../407print-int32-decimal-right-justified.mu.html#L2'>print-int32-decimal-right-justified</a> <a href='../../405screen.mu.html#L9'>screen</a>, val, max-width
+<span id="L393" class="LineNr">393 </span>  <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>  <span class="muComment"># space</span>
+<span id="L394" class="LineNr">394 </span><span class="Delimiter">}</span>
+<span id="L395" class="LineNr">395 </span>
+<span id="L396" class="LineNr">396 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L396'>hash-color</a></span> val: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L397" class="LineNr">397 </span>  result <span class="SpecialChar">&lt;-</span> <a href='../../406try-divide.mu.html#L86'>try-modulo</a> val, <span class="Constant">7</span>  <span class="muComment"># assumes that 7 is always the background color</span>
+<span id="L398" class="LineNr">398 </span><span class="Delimiter">}</span>
+<span id="L399" class="LineNr">399 </span>
+<span id="L400" class="LineNr">400 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L400'>clear-canvas</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
+<span id="L401" class="LineNr">401 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> copy _env
+<span id="L402" class="LineNr">402 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">edi</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L403" class="LineNr">403 </span>  <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L404" class="LineNr">404 </span>  <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy _screen
+<span id="L405" class="LineNr">405 </span>  <a href='../../405screen.mu.html#L80'>clear-screen</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L406" class="LineNr">406 </span>  <span class="PreProc">var</span> nrows/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, nrows
+<span id="L407" class="LineNr">407 </span>  <span class="PreProc">var</span> _repl-col/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
+<span id="L408" class="LineNr">408 </span>  <span class="PreProc">var</span> repl-col/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy *_repl-col
+<span id="L409" class="LineNr">409 </span>  draw-vertical-line <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, *nrows, repl-col
+<span id="L410" class="LineNr">410 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>, <span class="Constant">2</span>
+<span id="L411" class="LineNr">411 </span>  <a href='../../405screen.mu.html#L179'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;x 2* = x 2 *&quot;</span>
+<span id="L412" class="LineNr">412 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">4</span>, <span class="Constant">2</span>
+<span id="L413" class="LineNr">413 </span>  <a href='../../405screen.mu.html#L179'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;x 1+ = x 1 +&quot;</span>
+<span id="L414" class="LineNr">414 </span>  <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">2</span>
+<span id="L415" class="LineNr">415 </span>  <a href='../../405screen.mu.html#L179'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;x 2+ = x 1+ 1+&quot;</span>
+<span id="L416" class="LineNr">416 </span><span class="Delimiter">}</span>
+<span id="L417" class="LineNr">417 </span>
+<span id="L418" class="LineNr">418 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L418'>real-grapheme?</a></span> g: grapheme<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L419" class="LineNr">419 </span>$real-grapheme?:body: <span class="Delimiter">{</span>
+<span id="L420" class="LineNr">420 </span>  <span class="muComment"># if g == newline return true</span>
+<span id="L421" class="LineNr">421 </span>  compare g, <span class="Constant">0xa</span>
+<span id="L422" class="LineNr">422 </span>  <span class="Delimiter">{</span>
+<span id="L423" class="LineNr">423 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L424" class="LineNr">424 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># true</span>
+<span id="L425" class="LineNr">425 </span>    <span class="PreProc">break</span> $real-grapheme?:body
+<span id="L426" class="LineNr">426 </span>  <span class="Delimiter">}</span>
+<span id="L427" class="LineNr">427 </span>  <span class="muComment"># if g == tab return true</span>
+<span id="L428" class="LineNr">428 </span>  compare g, <span class="Constant">9</span>
+<span id="L429" class="LineNr">429 </span>  <span class="Delimiter">{</span>
+<span id="L430" class="LineNr">430 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L431" class="LineNr">431 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># true</span>
+<span id="L432" class="LineNr">432 </span>    <span class="PreProc">break</span> $real-grapheme?:body
+<span id="L433" class="LineNr">433 </span>  <span class="Delimiter">}</span>
+<span id="L434" class="LineNr">434 </span>  <span class="muComment"># if g &lt; 32 return false</span>
+<span id="L435" class="LineNr">435 </span>  compare g, <span class="Constant">0x20</span>
+<span id="L436" class="LineNr">436 </span>  <span class="Delimiter">{</span>
+<span id="L437" class="LineNr">437 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L438" class="LineNr">438 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L439" class="LineNr">439 </span>    <span class="PreProc">break</span> $real-grapheme?:body
+<span id="L440" class="LineNr">440 </span>  <span class="Delimiter">}</span>
+<span id="L441" class="LineNr">441 </span>  <span class="muComment"># if g &lt;= 255 return true</span>
+<span id="L442" class="LineNr">442 </span>  compare g, <span class="Constant">0xff</span>
+<span id="L443" class="LineNr">443 </span>  <span class="Delimiter">{</span>
+<span id="L444" class="LineNr">444 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L445" class="LineNr">445 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># true</span>
+<span id="L446" class="LineNr">446 </span>    <span class="PreProc">break</span> $real-grapheme?:body
+<span id="L447" class="LineNr">447 </span>  <span class="Delimiter">}</span>
+<span id="L448" class="LineNr">448 </span>  <span class="muComment"># if (g&amp;0xff == Esc) it's an escape sequence</span>
+<span id="L449" class="LineNr">449 </span>  and-with g, <span class="Constant">0xff</span>
+<span id="L450" class="LineNr">450 </span>  compare g, <span class="Constant">0x1b</span>  <span class="muComment"># Esc</span>
+<span id="L451" class="LineNr">451 </span>  <span class="Delimiter">{</span>
+<span id="L452" class="LineNr">452 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L453" class="LineNr">453 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L454" class="LineNr">454 </span>    <span class="PreProc">break</span> $real-grapheme?:body
+<span id="L455" class="LineNr">455 </span>  <span class="Delimiter">}</span>
+<span id="L456" class="LineNr">456 </span>  <span class="muComment"># otherwise return true</span>
+<span id="L457" class="LineNr">457 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># true</span>
+<span id="L458" class="LineNr">458 </span><span class="Delimiter">}</span>
+<span id="L459" class="LineNr">459 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/gap-buffer.mu.html b/html/apps/tile/gap-buffer.mu.html
new file mode 100644
index 00000000..02c71b8f
--- /dev/null
+++ b/html/apps/tile/gap-buffer.mu.html
@@ -0,0 +1,353 @@
+<!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 - apps/tile/gap-buffer.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/gap-buffer.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/gap-buffer.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">type</span> <a href='gap-buffer.mu.html#L1'>gap-buffer</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  left: grapheme-stack
+<span id="L3" class="LineNr">  3 </span>  right: grapheme-stack
+<span id="L4" class="LineNr">  4 </span><span class="Delimiter">}</span>
+<span id="L5" class="LineNr">  5 </span>
+<span id="L6" class="LineNr">  6 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L6'>initialize-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L7" class="LineNr">  7 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L8" class="LineNr">  8 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L9" class="LineNr">  9 </span>  initialize-grapheme-stack left, <span class="Constant">0x10</span>  <span class="muComment"># max-word-size</span>
+<span id="L10" class="LineNr"> 10 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L11" class="LineNr"> 11 </span>  initialize-grapheme-stack right, <span class="Constant">0x10</span>  <span class="muComment"># max-word-size</span>
+<span id="L12" class="LineNr"> 12 </span><span class="Delimiter">}</span>
+<span id="L13" class="LineNr"> 13 </span>
+<span id="L14" class="LineNr"> 14 </span><span class="muComment"># just for tests</span>
+<span id="L15" class="LineNr"> 15 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L15'>initialize-gap-buffer-with</a></span> self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L16" class="LineNr"> 16 </span>  <a href='gap-buffer.mu.html#L6'>initialize-gap-buffer</a> self
+<span id="L17" class="LineNr"> 17 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x10</span>)  <span class="muComment"># max-word-size</span>
+<span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L19" class="LineNr"> 19 </span>  <a href='../../108write.subx.html#L24'>write</a> stream, s
+<span id="L20" class="LineNr"> 20 </span>  <span class="Delimiter">{</span>
+<span id="L21" class="LineNr"> 21 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> stream
+<span id="L22" class="LineNr"> 22 </span>    compare done?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L23" class="LineNr"> 23 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L24" class="LineNr"> 24 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L160'>read-grapheme</a> stream
+<span id="L25" class="LineNr"> 25 </span>    <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> self, g
+<span id="L26" class="LineNr"> 26 </span>    <span class="PreProc">loop</span>
+<span id="L27" class="LineNr"> 27 </span>  <span class="Delimiter">}</span>
+<span id="L28" class="LineNr"> 28 </span><span class="Delimiter">}</span>
+<span id="L29" class="LineNr"> 29 </span>
+<span id="L30" class="LineNr"> 30 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L30'>gap-buffer-to-string</a></span> self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>), out: (addr handle array byte) <span class="Delimiter">{</span>
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> s-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L32" class="LineNr"> 32 </span>  <span class="PreProc">var</span> s/<span class="Constant">ecx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address s-storage
+<span id="L33" class="LineNr"> 33 </span>  <a href='gap-buffer.mu.html#L37'>emit-gap-buffer</a> self, s
+<span id="L34" class="LineNr"> 34 </span>  <a href='../../310copy-bytes.subx.html#L59'>stream-to-string</a> s, out
+<span id="L35" class="LineNr"> 35 </span><span class="Delimiter">}</span>
+<span id="L36" class="LineNr"> 36 </span>
+<span id="L37" class="LineNr"> 37 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L37'>emit-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>), out: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L38" class="LineNr"> 38 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L39" class="LineNr"> 39 </span>  <a href='../../106stream.subx.html#L17'>clear-stream</a> out
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L41" class="LineNr"> 41 </span>  <a href='gap-buffer.mu.html#L47'>emit-stack-from-bottom</a> left, out
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L43" class="LineNr"> 43 </span>  <a href='gap-buffer.mu.html#L65'>emit-stack-from-top</a> right, out
+<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">}</span>
+<span id="L45" class="LineNr"> 45 </span>
+<span id="L46" class="LineNr"> 46 </span><span class="muComment"># dump stack from bottom to top</span>
+<span id="L47" class="LineNr"> 47 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L47'>emit-stack-from-bottom</a></span> _self: (addr grapheme-stack), out: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L49" class="LineNr"> 49 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L53" class="LineNr"> 53 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L54" class="LineNr"> 54 </span>  <span class="Delimiter">{</span>
+<span id="L55" class="LineNr"> 55 </span>    compare i, *top-addr
+<span id="L56" class="LineNr"> 56 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L57" class="LineNr"> 57 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L58" class="LineNr"> 58 </span>    <a href='../../403unicode.mu.html#L379'>write-grapheme</a> out, *g
+<span id="L59" class="LineNr"> 59 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L60" class="LineNr"> 60 </span>    <span class="PreProc">loop</span>
+<span id="L61" class="LineNr"> 61 </span>  <span class="Delimiter">}</span>
+<span id="L62" class="LineNr"> 62 </span><span class="Delimiter">}</span>
+<span id="L63" class="LineNr"> 63 </span>
+<span id="L64" class="LineNr"> 64 </span><span class="muComment"># dump stack from top to bottom</span>
+<span id="L65" class="LineNr"> 65 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L65'>emit-stack-from-top</a></span> _self: (addr grapheme-stack), out: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L69" class="LineNr"> 69 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L70" class="LineNr"> 70 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L71" class="LineNr"> 71 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L72" class="LineNr"> 72 </span>  i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L73" class="LineNr"> 73 </span>  <span class="Delimiter">{</span>
+<span id="L74" class="LineNr"> 74 </span>    compare i, <span class="Constant">0</span>
+<span id="L75" class="LineNr"> 75 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L77" class="LineNr"> 77 </span>    <a href='../../403unicode.mu.html#L379'>write-grapheme</a> out, *g
+<span id="L78" class="LineNr"> 78 </span>    i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L79" class="LineNr"> 79 </span>    <span class="PreProc">loop</span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="Delimiter">}</span>
+<span id="L81" class="LineNr"> 81 </span><span class="Delimiter">}</span>
+<span id="L82" class="LineNr"> 82 </span>
+<span id="L83" class="LineNr"> 83 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L83'>render-gap-buffer</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), _gap: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L84" class="LineNr"> 84 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _gap
+<span id="L85" class="LineNr"> 85 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> gap, left
+<span id="L86" class="LineNr"> 86 </span>  render-stack-from-bottom left, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L87" class="LineNr"> 87 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> gap, right
+<span id="L88" class="LineNr"> 88 </span>  render-stack-from-top right, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">}</span>
+<span id="L90" class="LineNr"> 90 </span>
+<span id="L91" class="LineNr"> 91 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L91'>gap-buffer-length</a></span> _gap: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _gap
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> gap, left
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> left, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L95" class="LineNr"> 95 </span>  <span class="PreProc">var</span> left-length/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy *tmp
+<span id="L96" class="LineNr"> 96 </span>  <span class="PreProc">var</span> right/<span class="Constant">esi</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> gap, right
+<span id="L97" class="LineNr"> 97 </span>  tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> right, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L98" class="LineNr"> 98 </span>  result <span class="SpecialChar">&lt;-</span> copy *tmp
+<span id="L99" class="LineNr"> 99 </span>  result <span class="SpecialChar">&lt;-</span> add left-length
+<span id="L100" class="LineNr">100 </span><span class="Delimiter">}</span>
+<span id="L101" class="LineNr">101 </span>
+<span id="L102" class="LineNr">102 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>), g: grapheme <span class="Delimiter">{</span>
+<span id="L103" class="LineNr">103 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L104" class="LineNr">104 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L105" class="LineNr">105 </span>  push-grapheme-stack left, g
+<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span>
+<span id="L107" class="LineNr">107 </span>
+<span id="L108" class="LineNr">108 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L108'>gap-to-start</a></span> self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L109" class="LineNr">109 </span>  <span class="Delimiter">{</span>
+<span id="L110" class="LineNr">110 </span>    <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L154'>gap-left</a> self
+<span id="L111" class="LineNr">111 </span>    compare curr, <span class="Constant">-1</span>
+<span id="L112" class="LineNr">112 </span>    <span class="PreProc">loop-if-!=</span>
+<span id="L113" class="LineNr">113 </span>  <span class="Delimiter">}</span>
+<span id="L114" class="LineNr">114 </span><span class="Delimiter">}</span>
+<span id="L115" class="LineNr">115 </span>
+<span id="L116" class="LineNr">116 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L116'>gap-to-end</a></span> self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L117" class="LineNr">117 </span>  <span class="Delimiter">{</span>
+<span id="L118" class="LineNr">118 </span>    <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L136'>gap-right</a> self
+<span id="L119" class="LineNr">119 </span>    compare curr, <span class="Constant">-1</span>
+<span id="L120" class="LineNr">120 </span>    <span class="PreProc">loop-if-!=</span>
+<span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
+<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span>
+<span id="L123" class="LineNr">123 </span>
+<span id="L124" class="LineNr">124 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L124'>gap-at-start?</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L127" class="LineNr">127 </span>  result <span class="SpecialChar">&lt;-</span> grapheme-stack-empty? left
+<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span>
+<span id="L129" class="LineNr">129 </span>
+<span id="L130" class="LineNr">130 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L130'>gap-at-end?</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L131" class="LineNr">131 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L133" class="LineNr">133 </span>  result <span class="SpecialChar">&lt;-</span> grapheme-stack-empty? right
+<span id="L134" class="LineNr">134 </span><span class="Delimiter">}</span>
+<span id="L135" class="LineNr">135 </span>
+<span id="L136" class="LineNr">136 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L136'>gap-right</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L137" class="LineNr">137 </span>$gap-right:body: <span class="Delimiter">{</span>
+<span id="L138" class="LineNr">138 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L139" class="LineNr">139 </span>  <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L140" class="LineNr">140 </span>  <span class="Delimiter">{</span>
+<span id="L141" class="LineNr">141 </span>    <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L142" class="LineNr">142 </span>    result <span class="SpecialChar">&lt;-</span> pop-grapheme-stack right
+<span id="L143" class="LineNr">143 </span>    compare result, <span class="Constant">-1</span>
+<span id="L144" class="LineNr">144 </span>    <span class="PreProc">break-if-=</span> $gap-right:body
+<span id="L145" class="LineNr">145 </span>    g <span class="SpecialChar">&lt;-</span> copy result
+<span id="L146" class="LineNr">146 </span>  <span class="Delimiter">}</span>
+<span id="L147" class="LineNr">147 </span>  <span class="Delimiter">{</span>
+<span id="L148" class="LineNr">148 </span>    <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L149" class="LineNr">149 </span>    push-grapheme-stack left, g
+<span id="L150" class="LineNr">150 </span>  <span class="Delimiter">}</span>
+<span id="L151" class="LineNr">151 </span><span class="Delimiter">}</span>
+<span id="L152" class="LineNr">152 </span><span class="Delimiter">}</span>
+<span id="L153" class="LineNr">153 </span>
+<span id="L154" class="LineNr">154 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L154'>gap-left</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L155" class="LineNr">155 </span>$gap-left:body: <span class="Delimiter">{</span>
+<span id="L156" class="LineNr">156 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L157" class="LineNr">157 </span>  <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L158" class="LineNr">158 </span>  <span class="Delimiter">{</span>
+<span id="L159" class="LineNr">159 </span>    <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L160" class="LineNr">160 </span>    result <span class="SpecialChar">&lt;-</span> pop-grapheme-stack left
+<span id="L161" class="LineNr">161 </span>    compare result, <span class="Constant">-1</span>
+<span id="L162" class="LineNr">162 </span>    <span class="PreProc">break-if-=</span> $gap-left:body
+<span id="L163" class="LineNr">163 </span>    g <span class="SpecialChar">&lt;-</span> copy result
+<span id="L164" class="LineNr">164 </span>  <span class="Delimiter">}</span>
+<span id="L165" class="LineNr">165 </span>  <span class="Delimiter">{</span>
+<span id="L166" class="LineNr">166 </span>    <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L167" class="LineNr">167 </span>    push-grapheme-stack right, g
+<span id="L168" class="LineNr">168 </span>  <span class="Delimiter">}</span>
+<span id="L169" class="LineNr">169 </span><span class="Delimiter">}</span>
+<span id="L170" class="LineNr">170 </span><span class="Delimiter">}</span>
+<span id="L171" class="LineNr">171 </span>
+<span id="L172" class="LineNr">172 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L172'>gap-index</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L173" class="LineNr">173 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L174" class="LineNr">174 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L175" class="LineNr">175 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> left, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L176" class="LineNr">176 </span>  result <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span>
+<span id="L178" class="LineNr">178 </span>
+<span id="L179" class="LineNr">179 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L179'>first-grapheme-in-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L180" class="LineNr">180 </span>$first-grapheme-in-gap-buffer:body: <span class="Delimiter">{</span>
+<span id="L181" class="LineNr">181 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L182" class="LineNr">182 </span>  <span class="muComment"># try to read from left</span>
+<span id="L183" class="LineNr">183 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> left, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L185" class="LineNr">185 </span>  compare *top-addr, <span class="Constant">0</span>
+<span id="L186" class="LineNr">186 </span>  <span class="Delimiter">{</span>
+<span id="L187" class="LineNr">187 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L188" class="LineNr">188 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> left, data
+<span id="L189" class="LineNr">189 </span>    <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L190" class="LineNr">190 </span>    <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, <span class="Constant">0</span>
+<span id="L191" class="LineNr">191 </span>    result <span class="SpecialChar">&lt;-</span> copy *result-addr
+<span id="L192" class="LineNr">192 </span>    <span class="PreProc">break</span> $first-grapheme-in-gap-buffer:body
+<span id="L193" class="LineNr">193 </span>  <span class="Delimiter">}</span>
+<span id="L194" class="LineNr">194 </span>  <span class="muComment"># try to read from right</span>
+<span id="L195" class="LineNr">195 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L196" class="LineNr">196 </span>  top-addr <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> right, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L197" class="LineNr">197 </span>  compare *top-addr, <span class="Constant">0</span>
+<span id="L198" class="LineNr">198 </span>  <span class="Delimiter">{</span>
+<span id="L199" class="LineNr">199 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L200" class="LineNr">200 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> right, data
+<span id="L201" class="LineNr">201 </span>    <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L202" class="LineNr">202 </span>    <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L203" class="LineNr">203 </span>    <a href='../../203stack.subx.html#L338'>top</a> <span class="SpecialChar">&lt;-</span> decrement
+<span id="L204" class="LineNr">204 </span>    <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L205" class="LineNr">205 </span>    result <span class="SpecialChar">&lt;-</span> copy *result-addr
+<span id="L206" class="LineNr">206 </span>    <span class="PreProc">break</span> $first-grapheme-in-gap-buffer:body
+<span id="L207" class="LineNr">207 </span>  <span class="Delimiter">}</span>
+<span id="L208" class="LineNr">208 </span>  <span class="muComment"># give up</span>
+<span id="L209" class="LineNr">209 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">-1</span>
+<span id="L210" class="LineNr">210 </span><span class="Delimiter">}</span>
+<span id="L211" class="LineNr">211 </span><span class="Delimiter">}</span>
+<span id="L212" class="LineNr">212 </span>
+<span id="L213" class="LineNr">213 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L213'>delete-before-gap</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L214" class="LineNr">214 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L215" class="LineNr">215 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L216" class="LineNr">216 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> pop-grapheme-stack left
+<span id="L217" class="LineNr">217 </span><span class="Delimiter">}</span>
+<span id="L218" class="LineNr">218 </span>
+<span id="L219" class="LineNr">219 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L219'>gap-buffer-equal?</a></span> _self: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>), s: (addr array byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L220" class="LineNr">220 </span>$gap-buffer-equal?:body: <span class="Delimiter">{</span>
+<span id="L221" class="LineNr">221 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L222" class="LineNr">222 </span>  <span class="muComment"># complication: graphemes may be multiple bytes</span>
+<span id="L223" class="LineNr">223 </span>  <span class="muComment"># so don't rely on length</span>
+<span id="L224" class="LineNr">224 </span>  <span class="muComment"># instead turn the expected result into a stream and arrange to read from it in order</span>
+<span id="L225" class="LineNr">225 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x10</span>)  <span class="muComment"># max-word-size</span>
+<span id="L226" class="LineNr">226 </span>  <span class="PreProc">var</span> expected-stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L227" class="LineNr">227 </span>  <a href='../../108write.subx.html#L24'>write</a> expected-stream, s
+<span id="L228" class="LineNr">228 </span>  <span class="muComment"># compare left</span>
+<span id="L229" class="LineNr">229 </span>  <span class="PreProc">var</span> left/<span class="Constant">edx</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, left
+<span id="L230" class="LineNr">230 </span>  result <span class="SpecialChar">&lt;-</span> prefix-match? left, expected-stream
+<span id="L231" class="LineNr">231 </span>  compare result, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L232" class="LineNr">232 </span>  <span class="PreProc">break-if-=</span> $gap-buffer-equal?:body
+<span id="L233" class="LineNr">233 </span>  <span class="muComment"># compare right</span>
+<span id="L234" class="LineNr">234 </span>  <span class="PreProc">var</span> right/<span class="Constant">edx</span>: (addr grapheme-stack) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, right
+<span id="L235" class="LineNr">235 </span>  result <span class="SpecialChar">&lt;-</span> suffix-match? right, expected-stream
+<span id="L236" class="LineNr">236 </span>  compare result, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L237" class="LineNr">237 </span>  <span class="PreProc">break-if-=</span> $gap-buffer-equal?:body
+<span id="L238" class="LineNr">238 </span>  <span class="muComment"># ensure there's nothing left over</span>
+<span id="L239" class="LineNr">239 </span>  result <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> expected-stream
+<span id="L240" class="LineNr">240 </span><span class="Delimiter">}</span>
+<span id="L241" class="LineNr">241 </span><span class="Delimiter">}</span>
+<span id="L242" class="LineNr">242 </span>
+<span id="L243" class="LineNr">243 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L243'>test-gap-buffer-equal-from-end?</a></span> <span class="Delimiter">{</span>
+<span id="L244" class="LineNr">244 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L1'>gap-buffer</a>
+<span id="L245" class="LineNr">245 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> address _g
+<span id="L246" class="LineNr">246 </span>  <a href='gap-buffer.mu.html#L6'>initialize-gap-buffer</a> g
+<span id="L247" class="LineNr">247 </span>  <span class="muComment">#</span>
+<span id="L248" class="LineNr">248 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x61</span>  <span class="muComment"># 'a'</span>
+<span id="L249" class="LineNr">249 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L250" class="LineNr">250 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L251" class="LineNr">251 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L252" class="LineNr">252 </span>  <span class="muComment"># gap is at end (right is empty)</span>
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> _result/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L219'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aaa&quot;</span>
+<span id="L254" class="LineNr">254 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _result
+<span id="L255" class="LineNr">255 </span>  <a href='../../102test.subx.html#L23'>check-ints-equal</a> result, <span class="Constant">1</span>, <span class="Constant">&quot;F - test-gap-buffer-equal-from-end?&quot;</span>
+<span id="L256" class="LineNr">256 </span><span class="Delimiter">}</span>
+<span id="L257" class="LineNr">257 </span>
+<span id="L258" class="LineNr">258 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L258'>test-gap-buffer-equal-from-middle?</a></span> <span class="Delimiter">{</span>
+<span id="L259" class="LineNr">259 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L1'>gap-buffer</a>
+<span id="L260" class="LineNr">260 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> address _g
+<span id="L261" class="LineNr">261 </span>  <a href='gap-buffer.mu.html#L6'>initialize-gap-buffer</a> g
+<span id="L262" class="LineNr">262 </span>  <span class="muComment">#</span>
+<span id="L263" class="LineNr">263 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x61</span>  <span class="muComment"># 'a'</span>
+<span id="L264" class="LineNr">264 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L265" class="LineNr">265 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L266" class="LineNr">266 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L267" class="LineNr">267 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L154'>gap-left</a> g
+<span id="L268" class="LineNr">268 </span>  <span class="muComment"># gap is in the middle</span>
+<span id="L269" class="LineNr">269 </span>  <span class="PreProc">var</span> _result/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L219'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aaa&quot;</span>
+<span id="L270" class="LineNr">270 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _result
+<span id="L271" class="LineNr">271 </span>  <a href='../../102test.subx.html#L23'>check-ints-equal</a> result, <span class="Constant">1</span>, <span class="Constant">&quot;F - test-gap-buffer-equal-from-middle?&quot;</span>
+<span id="L272" class="LineNr">272 </span><span class="Delimiter">}</span>
+<span id="L273" class="LineNr">273 </span>
+<span id="L274" class="LineNr">274 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L274'>test-gap-buffer-equal-from-start?</a></span> <span class="Delimiter">{</span>
+<span id="L275" class="LineNr">275 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L1'>gap-buffer</a>
+<span id="L276" class="LineNr">276 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L1'>gap-buffer</a>) <span class="SpecialChar">&lt;-</span> address _g
+<span id="L277" class="LineNr">277 </span>  <a href='gap-buffer.mu.html#L6'>initialize-gap-buffer</a> g
+<span id="L278" class="LineNr">278 </span>  <span class="muComment">#</span>
+<span id="L279" class="LineNr">279 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x61</span>  <span class="muComment"># 'a'</span>
+<span id="L280" class="LineNr">280 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L281" class="LineNr">281 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L282" class="LineNr">282 </span>  <a href='gap-buffer.mu.html#L102'>add-grapheme-at-gap</a> g, c
+<span id="L283" class="LineNr">283 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L154'>gap-left</a> g
+<span id="L284" class="LineNr">284 </span>  dummy <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L154'>gap-left</a> g
+<span id="L285" class="LineNr">285 </span>  dummy <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L154'>gap-left</a> g
+<span id="L286" class="LineNr">286 </span>  <span class="muComment"># gap is at the start</span>
+<span id="L287" class="LineNr">287 </span>  <span class="PreProc">var</span> _result/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='gap-buffer.mu.html#L219'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aaa&quot;</span>
+<span id="L288" class="LineNr">288 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _result
+<span id="L289" class="LineNr">289 </span>  <a href='../../102test.subx.html#L23'>check-ints-equal</a> result, <span class="Constant">1</span>, <span class="Constant">&quot;F - test-gap-buffer-equal-from-start?&quot;</span>
+<span id="L290" class="LineNr">290 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/grapheme-stack.mu.html b/html/apps/tile/grapheme-stack.mu.html
new file mode 100644
index 00000000..32f7aa0b
--- /dev/null
+++ b/html/apps/tile/grapheme-stack.mu.html
@@ -0,0 +1,221 @@
+<!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 - apps/tile/grapheme-stack.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/grapheme-stack.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/grapheme-stack.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">type</span> <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  data: (handle array grapheme)
+<span id="L3" class="LineNr">  3 </span>  <a href='../../203stack.subx.html#L338'>top</a>: int
+<span id="L4" class="LineNr">  4 </span><span class="Delimiter">}</span>
+<span id="L5" class="LineNr">  5 </span>
+<span id="L6" class="LineNr">  6 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L6'>initialize-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>), n: int <span class="Delimiter">{</span>
+<span id="L7" class="LineNr">  7 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L8" class="LineNr">  8 </span>  <span class="PreProc">var</span> d/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L9" class="LineNr">  9 </span>  populate d, n
+<span id="L10" class="LineNr"> 10 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L11" class="LineNr"> 11 </span>  copy-to *top, <span class="Constant">0</span>
+<span id="L12" class="LineNr"> 12 </span><span class="Delimiter">}</span>
+<span id="L13" class="LineNr"> 13 </span>
+<span id="L14" class="LineNr"> 14 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L14'>grapheme-stack-empty?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L15" class="LineNr"> 15 </span>$grapheme-stack-empty?:body: <span class="Delimiter">{</span>
+<span id="L16" class="LineNr"> 16 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L17" class="LineNr"> 17 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L18" class="LineNr"> 18 </span>  compare *top, <span class="Constant">0</span>
+<span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">{</span>
+<span id="L20" class="LineNr"> 20 </span>    <span class="PreProc">break-if-=</span>
+<span id="L21" class="LineNr"> 21 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># false</span>
+<span id="L22" class="LineNr"> 22 </span>    <span class="PreProc">break</span> $grapheme-stack-empty?:body
+<span id="L23" class="LineNr"> 23 </span>  <span class="Delimiter">}</span>
+<span id="L24" class="LineNr"> 24 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">}</span>
+<span id="L26" class="LineNr"> 26 </span><span class="Delimiter">}</span>
+<span id="L27" class="LineNr"> 27 </span>
+<span id="L28" class="LineNr"> 28 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L28'>push-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>), _val: grapheme <span class="Delimiter">{</span>
+<span id="L29" class="LineNr"> 29 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L32" class="LineNr"> 32 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L33" class="LineNr"> 33 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L34" class="LineNr"> 34 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _val
+<span id="L36" class="LineNr"> 36 </span>  copy-to *dest-addr, val
+<span id="L37" class="LineNr"> 37 </span>  add-to *top-addr, <span class="Constant">1</span>
+<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">}</span>
+<span id="L39" class="LineNr"> 39 </span>
+<span id="L40" class="LineNr"> 40 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L40'>pop-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>)<span class="PreProc"> -&gt; </span>val/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L41" class="LineNr"> 41 </span>$pop-grapheme-stack:body: <span class="Delimiter">{</span>
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L44" class="LineNr"> 44 </span>  <span class="Delimiter">{</span>
+<span id="L45" class="LineNr"> 45 </span>    compare *top-addr, <span class="Constant">0</span>
+<span id="L46" class="LineNr"> 46 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L47" class="LineNr"> 47 </span>    val <span class="SpecialChar">&lt;-</span> copy <span class="Constant">-1</span>
+<span id="L48" class="LineNr"> 48 </span>    <span class="PreProc">break</span> $pop-grapheme-stack:body
+<span id="L49" class="LineNr"> 49 </span>  <span class="Delimiter">}</span>
+<span id="L50" class="LineNr"> 50 </span>  subtract-from *top-addr, <span class="Constant">1</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L53" class="LineNr"> 53 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L54" class="LineNr"> 54 </span>  <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L55" class="LineNr"> 55 </span>  val <span class="SpecialChar">&lt;-</span> copy *result-addr
+<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">}</span>
+<span id="L57" class="LineNr"> 57 </span><span class="Delimiter">}</span>
+<span id="L58" class="LineNr"> 58 </span>
+<span id="L59" class="LineNr"> 59 </span><span class="muComment"># dump stack to screen from bottom to top</span>
+<span id="L60" class="LineNr"> 60 </span><span class="muComment"># don't move the cursor or anything</span>
+<span id="L61" class="LineNr"> 61 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L61'>render-stack-from-bottom</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>), <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L68" class="LineNr"> 68 </span>  <span class="Delimiter">{</span>
+<span id="L69" class="LineNr"> 69 </span>    compare i, *top-addr
+<span id="L70" class="LineNr"> 70 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L72" class="LineNr"> 72 </span>    <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, *g
+<span id="L73" class="LineNr"> 73 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L74" class="LineNr"> 74 </span>    <span class="PreProc">loop</span>
+<span id="L75" class="LineNr"> 75 </span>  <span class="Delimiter">}</span>
+<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">}</span>
+<span id="L77" class="LineNr"> 77 </span>
+<span id="L78" class="LineNr"> 78 </span><span class="muComment"># dump stack to screen from top to bottom</span>
+<span id="L79" class="LineNr"> 79 </span><span class="muComment"># don't move the cursor or anything</span>
+<span id="L80" class="LineNr"> 80 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L80'>render-stack-from-top</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>), <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L81" class="LineNr"> 81 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L82" class="LineNr"> 82 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L84" class="LineNr"> 84 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L85" class="LineNr"> 85 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L87" class="LineNr"> 87 </span>  i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L88" class="LineNr"> 88 </span>  <span class="Delimiter">{</span>
+<span id="L89" class="LineNr"> 89 </span>    compare i, <span class="Constant">0</span>
+<span id="L90" class="LineNr"> 90 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L91" class="LineNr"> 91 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L92" class="LineNr"> 92 </span>    <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, *g
+<span id="L93" class="LineNr"> 93 </span>    i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L94" class="LineNr"> 94 </span>    <span class="PreProc">loop</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="Delimiter">}</span>
+<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">}</span>
+<span id="L97" class="LineNr"> 97 </span>
+<span id="L98" class="LineNr"> 98 </span><span class="muComment"># compare from bottom</span>
+<span id="L99" class="LineNr"> 99 </span><span class="muComment"># beware: modifies 'stream', which must be disposed of after a false result</span>
+<span id="L100" class="LineNr">100 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L100'>prefix-match?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>), s: (addr stream byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L101" class="LineNr">101 </span>$prefix-match?:body: <span class="Delimiter">{</span>
+<span id="L102" class="LineNr">102 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L103" class="LineNr">103 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L104" class="LineNr">104 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L106" class="LineNr">106 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L107" class="LineNr">107 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L108" class="LineNr">108 </span>  <span class="Delimiter">{</span>
+<span id="L109" class="LineNr">109 </span>    compare i, *top-addr
+<span id="L110" class="LineNr">110 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L111" class="LineNr">111 </span>    <span class="muComment"># if curr != expected, return false</span>
+<span id="L112" class="LineNr">112 </span>    <span class="Delimiter">{</span>
+<span id="L113" class="LineNr">113 </span>      <span class="PreProc">var</span> curr-a/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L114" class="LineNr">114 </span>      <span class="PreProc">var</span> expected/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L160'>read-grapheme</a> s
+<span id="L115" class="LineNr">115 </span>      <span class="Delimiter">{</span>
+<span id="L116" class="LineNr">116 </span>        compare expected, *curr-a
+<span id="L117" class="LineNr">117 </span>        <span class="PreProc">break-if-=</span>
+<span id="L118" class="LineNr">118 </span>        result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L119" class="LineNr">119 </span>        <span class="PreProc">break</span> $prefix-match?:body
+<span id="L120" class="LineNr">120 </span>      <span class="Delimiter">}</span>
+<span id="L121" class="LineNr">121 </span>    <span class="Delimiter">}</span>
+<span id="L122" class="LineNr">122 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L123" class="LineNr">123 </span>    <span class="PreProc">loop</span>
+<span id="L124" class="LineNr">124 </span>  <span class="Delimiter">}</span>
+<span id="L125" class="LineNr">125 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>   <span class="muComment"># true</span>
+<span id="L126" class="LineNr">126 </span><span class="Delimiter">}</span>
+<span id="L127" class="LineNr">127 </span><span class="Delimiter">}</span>
+<span id="L128" class="LineNr">128 </span>
+<span id="L129" class="LineNr">129 </span><span class="muComment"># compare from bottom</span>
+<span id="L130" class="LineNr">130 </span><span class="muComment"># beware: modifies 'stream', which must be disposed of after a false result</span>
+<span id="L131" class="LineNr">131 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L131'>suffix-match?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>), s: (addr stream byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L132" class="LineNr">132 </span>$suffix-match?:body: <span class="Delimiter">{</span>
+<span id="L133" class="LineNr">133 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L1'>grapheme-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L135" class="LineNr">135 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L136" class="LineNr">136 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L137" class="LineNr">137 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L138" class="LineNr">138 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L139" class="LineNr">139 </span>  i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L140" class="LineNr">140 </span>  <span class="Delimiter">{</span>
+<span id="L141" class="LineNr">141 </span>    compare i, <span class="Constant">0</span>
+<span id="L142" class="LineNr">142 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L143" class="LineNr">143 </span>    <span class="Delimiter">{</span>
+<span id="L144" class="LineNr">144 </span>      <span class="PreProc">var</span> curr-a/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L145" class="LineNr">145 </span>      <span class="PreProc">var</span> expected/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L160'>read-grapheme</a> s
+<span id="L146" class="LineNr">146 </span>      <span class="muComment"># if curr != expected, return false</span>
+<span id="L147" class="LineNr">147 </span>      <span class="Delimiter">{</span>
+<span id="L148" class="LineNr">148 </span>        compare expected, *curr-a
+<span id="L149" class="LineNr">149 </span>        <span class="PreProc">break-if-=</span>
+<span id="L150" class="LineNr">150 </span>        result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L151" class="LineNr">151 </span>        <span class="PreProc">break</span> $suffix-match?:body
+<span id="L152" class="LineNr">152 </span>      <span class="Delimiter">}</span>
+<span id="L153" class="LineNr">153 </span>    <span class="Delimiter">}</span>
+<span id="L154" class="LineNr">154 </span>    i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L155" class="LineNr">155 </span>    <span class="PreProc">loop</span>
+<span id="L156" class="LineNr">156 </span>  <span class="Delimiter">}</span>
+<span id="L157" class="LineNr">157 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>   <span class="muComment"># true</span>
+<span id="L158" class="LineNr">158 </span><span class="Delimiter">}</span>
+<span id="L159" class="LineNr">159 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/int-stack.mu.html b/html/apps/tile/int-stack.mu.html
new file mode 100644
index 00000000..13b66b74
--- /dev/null
+++ b/html/apps/tile/int-stack.mu.html
@@ -0,0 +1,154 @@
+<!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 - apps/tile/int-stack.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/int-stack.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/int-stack.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="PreProc">type</span> <a href='int-stack.mu.html#L1'>int-stack</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr"> 2 </span>  data: (handle array int)
+<span id="L3" class="LineNr"> 3 </span>  <a href='../../203stack.subx.html#L338'>top</a>: int
+<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">}</span>
+<span id="L5" class="LineNr"> 5 </span>
+<span id="L6" class="LineNr"> 6 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L6'>initialize-int-stack</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>), n: int <span class="Delimiter">{</span>
+<span id="L7" class="LineNr"> 7 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L8" class="LineNr"> 8 </span>  <span class="PreProc">var</span> d/<span class="Constant">edi</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L9" class="LineNr"> 9 </span>  populate d, n
+<span id="L10" class="LineNr">10 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L11" class="LineNr">11 </span>  copy-to *top, <span class="Constant">0</span>
+<span id="L12" class="LineNr">12 </span><span class="Delimiter">}</span>
+<span id="L13" class="LineNr">13 </span>
+<span id="L14" class="LineNr">14 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L14'>clear-int-stack</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="Delimiter">{</span>
+<span id="L15" class="LineNr">15 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L16" class="LineNr">16 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L17" class="LineNr">17 </span>  copy-to *top, <span class="Constant">0</span>
+<span id="L18" class="LineNr">18 </span><span class="Delimiter">}</span>
+<span id="L19" class="LineNr">19 </span>
+<span id="L20" class="LineNr">20 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L20'>push-int-stack</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>), _val: int <span class="Delimiter">{</span>
+<span id="L21" class="LineNr">21 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L22" class="LineNr">22 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L23" class="LineNr">23 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L24" class="LineNr">24 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L25" class="LineNr">25 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L26" class="LineNr">26 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L27" class="LineNr">27 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _val
+<span id="L28" class="LineNr">28 </span>  copy-to *dest-addr, val
+<span id="L29" class="LineNr">29 </span>  add-to *top-addr, <span class="Constant">1</span>
+<span id="L30" class="LineNr">30 </span><span class="Delimiter">}</span>
+<span id="L31" class="LineNr">31 </span>
+<span id="L32" class="LineNr">32 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L32'>pop-int-stack</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>)<span class="PreProc"> -&gt; </span>val/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L33" class="LineNr">33 </span>$pop-int-stack:body: <span class="Delimiter">{</span>
+<span id="L34" class="LineNr">34 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L35" class="LineNr">35 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L36" class="LineNr">36 </span>  <span class="Delimiter">{</span>
+<span id="L37" class="LineNr">37 </span>    compare *top-addr, <span class="Constant">0</span>
+<span id="L38" class="LineNr">38 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L39" class="LineNr">39 </span>    val <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L40" class="LineNr">40 </span>    <span class="PreProc">break</span> $pop-int-stack:body
+<span id="L41" class="LineNr">41 </span>  <span class="Delimiter">}</span>
+<span id="L42" class="LineNr">42 </span>  subtract-from *top-addr, <span class="Constant">1</span>
+<span id="L43" class="LineNr">43 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L44" class="LineNr">44 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L45" class="LineNr">45 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L46" class="LineNr">46 </span>  <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L47" class="LineNr">47 </span>  val <span class="SpecialChar">&lt;-</span> copy *result-addr
+<span id="L48" class="LineNr">48 </span><span class="Delimiter">}</span>
+<span id="L49" class="LineNr">49 </span><span class="Delimiter">}</span>
+<span id="L50" class="LineNr">50 </span>
+<span id="L51" class="LineNr">51 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L51'>int-stack-empty?</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L52" class="LineNr">52 </span>$int-stack-empty?:body: <span class="Delimiter">{</span>
+<span id="L53" class="LineNr">53 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L54" class="LineNr">54 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L55" class="LineNr">55 </span>  compare *top-addr, <span class="Constant">0</span>
+<span id="L56" class="LineNr">56 </span>  <span class="Delimiter">{</span>
+<span id="L57" class="LineNr">57 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L58" class="LineNr">58 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># true</span>
+<span id="L59" class="LineNr">59 </span>    <span class="PreProc">break</span> $int-stack-empty?:body
+<span id="L60" class="LineNr">60 </span>  <span class="Delimiter">}</span>
+<span id="L61" class="LineNr">61 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L62" class="LineNr">62 </span><span class="Delimiter">}</span>
+<span id="L63" class="LineNr">63 </span><span class="Delimiter">}</span>
+<span id="L64" class="LineNr">64 </span>
+<span id="L65" class="LineNr">65 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L65'>int-stack-length</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L66" class="LineNr">66 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L67" class="LineNr">67 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L68" class="LineNr">68 </span>  result <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L69" class="LineNr">69 </span><span class="Delimiter">}</span>
+<span id="L70" class="LineNr">70 </span>
+<span id="L71" class="LineNr">71 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='int-stack.mu.html#L71'>int-stack-max-width</a></span> _self: (addr <a href='int-stack.mu.html#L1'>int-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L72" class="LineNr">72 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='int-stack.mu.html#L1'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L73" class="LineNr">73 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L74" class="LineNr">74 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L75" class="LineNr">75 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array int) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L76" class="LineNr">76 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L77" class="LineNr">77 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L78" class="LineNr">78 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L79" class="LineNr">79 </span>  <span class="Delimiter">{</span>
+<span id="L80" class="LineNr">80 </span>    compare i, *top-addr
+<span id="L81" class="LineNr">81 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L82" class="LineNr">82 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, i
+<span id="L83" class="LineNr">83 </span>    <span class="PreProc">var</span> w/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='../../407print-int32-decimal-right-justified.mu.html#L16'>int-width-decimal</a> *g
+<span id="L84" class="LineNr">84 </span>    compare w, result
+<span id="L85" class="LineNr">85 </span>    <span class="Delimiter">{</span>
+<span id="L86" class="LineNr">86 </span>      <span class="PreProc">break-if-&lt;=</span>
+<span id="L87" class="LineNr">87 </span>      result <span class="SpecialChar">&lt;-</span> copy w
+<span id="L88" class="LineNr">88 </span>    <span class="Delimiter">}</span>
+<span id="L89" class="LineNr">89 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L90" class="LineNr">90 </span>    <span class="PreProc">loop</span>
+<span id="L91" class="LineNr">91 </span>  <span class="Delimiter">}</span>
+<span id="L92" class="LineNr">92 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/main.mu.html b/html/apps/tile/main.mu.html
new file mode 100644
index 00000000..8fbd435b
--- /dev/null
+++ b/html/apps/tile/main.mu.html
@@ -0,0 +1,171 @@
+<!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 - apps/tile/main.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Constant { color: #008787; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Delimiter { color: #c000c0; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/main.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/main.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L1'>main</a></span> args-on-stack: (addr array addr array byte)<span class="PreProc"> -&gt; </span>exit-status/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <span class="PreProc">var</span> args/<span class="Constant">eax</span>: (addr array addr array byte) <span class="SpecialChar">&lt;-</span> copy args-on-stack
+<span id="L3" class="LineNr">  3 </span>  <span class="PreProc">var</span> len/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> length args
+<span id="L4" class="LineNr">  4 </span>  $main-body: <span class="Delimiter">{</span>
+<span id="L5" class="LineNr">  5 </span>    compare len, <span class="Constant">2</span>
+<span id="L6" class="LineNr">  6 </span>    <span class="Delimiter">{</span>
+<span id="L7" class="LineNr">  7 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L8" class="LineNr">  8 </span>      <span class="muComment"># if single arg is 'test', run tests</span>
+<span id="L9" class="LineNr">  9 </span>      <span class="PreProc">var</span> tmp/<span class="Constant">ecx</span>: (addr addr array byte) <span class="SpecialChar">&lt;-</span> index args, <span class="Constant">1</span>
+<span id="L10" class="LineNr"> 10 </span>      <span class="PreProc">var</span> tmp2/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;test&quot;</span>
+<span id="L11" class="LineNr"> 11 </span>      compare tmp2, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L12" class="LineNr"> 12 </span>      <span class="Delimiter">{</span>
+<span id="L13" class="LineNr"> 13 </span>        <span class="PreProc">break-if-=</span>
+<span id="L14" class="LineNr"> 14 </span>        run-tests
+<span id="L15" class="LineNr"> 15 </span>        exit-status <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># TODO: get at Num-test-failures somehow</span>
+<span id="L16" class="LineNr"> 16 </span>        <span class="PreProc">break</span> $main-body
+<span id="L17" class="LineNr"> 17 </span>      <span class="Delimiter">}</span>
+<span id="L18" class="LineNr"> 18 </span>      <span class="muComment"># if single arg is 'screen', run in full-screen mode</span>
+<span id="L19" class="LineNr"> 19 </span>      tmp2 <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;screen&quot;</span>
+<span id="L20" class="LineNr"> 20 </span>      compare tmp2, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L21" class="LineNr"> 21 </span>      <span class="Delimiter">{</span>
+<span id="L22" class="LineNr"> 22 </span>        <span class="PreProc">break-if-=</span>
+<span id="L23" class="LineNr"> 23 </span>        <a href='main.mu.html#L46'>interactive</a>
+<span id="L24" class="LineNr"> 24 </span>        exit-status <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L25" class="LineNr"> 25 </span>        <span class="PreProc">break</span> $main-body
+<span id="L26" class="LineNr"> 26 </span>      <span class="Delimiter">}</span>
+<span id="L27" class="LineNr"> 27 </span>      <span class="muComment"># if single arg is 'type', run in typewriter mode</span>
+<span id="L28" class="LineNr"> 28 </span>      tmp2 <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;type&quot;</span>
+<span id="L29" class="LineNr"> 29 </span>      compare tmp2, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L30" class="LineNr"> 30 </span>      <span class="Delimiter">{</span>
+<span id="L31" class="LineNr"> 31 </span>        <span class="PreProc">break-if-=</span>
+<span id="L32" class="LineNr"> 32 </span>        <a href='main.mu.html#L65'>repl</a>
+<span id="L33" class="LineNr"> 33 </span>        exit-status <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L34" class="LineNr"> 34 </span>        <span class="PreProc">break</span> $main-body
+<span id="L35" class="LineNr"> 35 </span>      <span class="Delimiter">}</span>
+<span id="L36" class="LineNr"> 36 </span>    <span class="Delimiter">}</span>
+<span id="L37" class="LineNr"> 37 </span>    <span class="muComment"># otherwise error message</span>
+<span id="L38" class="LineNr"> 38 </span>    <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;usage:\n&quot;</span>
+<span id="L39" class="LineNr"> 39 </span>    <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;  to run tests: tile test\n&quot;</span>
+<span id="L40" class="LineNr"> 40 </span>    <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;  full-screen mode: tile screen\n&quot;</span>
+<span id="L41" class="LineNr"> 41 </span>    <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;  regular REPL: tile type\n&quot;</span>
+<span id="L42" class="LineNr"> 42 </span>    exit-status <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L43" class="LineNr"> 43 </span>  <span class="Delimiter">}</span>
+<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">}</span>
+<span id="L45" class="LineNr"> 45 </span>
+<span id="L46" class="LineNr"> 46 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L46'>interactive</a></span> <span class="Delimiter">{</span>
+<span id="L47" class="LineNr"> 47 </span>  <a href='../../304screen.subx.html#L6'>enable-screen-grid-mode</a>
+<span id="L48" class="LineNr"> 48 </span>  <a href='../../305keyboard.subx.html#L6'>enable-keyboard-immediate-mode</a>
+<span id="L49" class="LineNr"> 49 </span>  <span class="PreProc">var</span> env-storage: environment
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr environment) <span class="SpecialChar">&lt;-</span> address env-storage
+<span id="L51" class="LineNr"> 51 </span>  initialize-environment env
+<span id="L52" class="LineNr"> 52 </span>  draw-screen env
+<span id="L53" class="LineNr"> 53 </span>  <span class="Delimiter">{</span>
+<span id="L54" class="LineNr"> 54 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../305keyboard.subx.html#L132'>read-key-from-real-keyboard</a>
+<span id="L55" class="LineNr"> 55 </span>    compare key, <span class="Constant">0x71</span>  <span class="muComment"># 'q'</span>
+<span id="L56" class="LineNr"> 56 </span>    <span class="PreProc">break-if-=</span>
+<span id="L57" class="LineNr"> 57 </span>    process env, key
+<span id="L58" class="LineNr"> 58 </span>    render env
+<span id="L59" class="LineNr"> 59 </span>    <span class="PreProc">loop</span>
+<span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
+<span id="L61" class="LineNr"> 61 </span>  <a href='../../305keyboard.subx.html#L72'>enable-keyboard-type-mode</a>
+<span id="L62" class="LineNr"> 62 </span>  <a href='../../304screen.subx.html#L24'>enable-screen-type-mode</a>
+<span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span>
+<span id="L64" class="LineNr"> 64 </span>
+<span id="L65" class="LineNr"> 65 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L65'>repl</a></span> <span class="Delimiter">{</span>
+<span id="L66" class="LineNr"> 66 </span>  <a href='../../305keyboard.subx.html#L6'>enable-keyboard-immediate-mode</a>
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> env-storage: environment
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr environment) <span class="SpecialChar">&lt;-</span> address env-storage
+<span id="L69" class="LineNr"> 69 </span>  initialize-environment env
+<span id="L70" class="LineNr"> 70 </span>  <span class="PreProc">var</span> stack-storage: value-stack
+<span id="L71" class="LineNr"> 71 </span>  <span class="PreProc">var</span> stack/<span class="Constant">edi</span>: (addr value-stack) <span class="SpecialChar">&lt;-</span> address stack-storage
+<span id="L72" class="LineNr"> 72 </span>  initialize-value-stack stack, <span class="Constant">0x10</span>
+<span id="L73" class="LineNr"> 73 </span>  <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;&gt; &quot;</span>
+<span id="L74" class="LineNr"> 74 </span>  $repl:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L75" class="LineNr"> 75 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../305keyboard.subx.html#L132'>read-key-from-real-keyboard</a>
+<span id="L76" class="LineNr"> 76 </span>    <a href='../../304screen.subx.html#L161'>print-grapheme-to-real-screen</a> key
+<span id="L77" class="LineNr"> 77 </span>    compare key, <span class="Constant">4</span>  <span class="muComment"># ctrl-d</span>
+<span id="L78" class="LineNr"> 78 </span>    <span class="PreProc">break-if-=</span>
+<span id="L79" class="LineNr"> 79 </span>    compare key, <span class="Constant">0xa</span>  <span class="muComment"># newline</span>
+<span id="L80" class="LineNr"> 80 </span>    <span class="Delimiter">{</span>
+<span id="L81" class="LineNr"> 81 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L82" class="LineNr"> 82 </span>      evaluate-environment env, stack
+<span id="L83" class="LineNr"> 83 </span>      <span class="PreProc">var</span> empty?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> value-stack-empty? stack
+<span id="L84" class="LineNr"> 84 </span>      <span class="Delimiter">{</span>
+<span id="L85" class="LineNr"> 85 </span>        compare empty?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L86" class="LineNr"> 86 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L87" class="LineNr"> 87 </span>        <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack stack
+<span id="L88" class="LineNr"> 88 </span>        <a href='../../304screen.subx.html#L252'>print-int32-decimal-to-real-screen</a> result
+<span id="L89" class="LineNr"> 89 </span>        <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;\n&quot;</span>
+<span id="L90" class="LineNr"> 90 </span>      <span class="Delimiter">}</span>
+<span id="L91" class="LineNr"> 91 </span>      <span class="muComment"># clear line</span>
+<span id="L92" class="LineNr"> 92 </span>      <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, cursor-word
+<span id="L93" class="LineNr"> 93 </span>      <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
+<span id="L94" class="LineNr"> 94 </span>      <span class="PreProc">var</span> _program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
+<span id="L95" class="LineNr"> 95 </span>      <span class="PreProc">var</span> program/<span class="Constant">esi</span>: (addr program) <span class="SpecialChar">&lt;-</span> copy _program
+<span id="L96" class="LineNr"> 96 </span>      <span class="PreProc">var</span> sandbox-ah/<span class="Constant">esi</span>: (addr handle sandbox) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> program, sandboxes
+<span id="L97" class="LineNr"> 97 </span>      <span class="PreProc">var</span> sandbox/<span class="Constant">eax</span>: (addr sandbox) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *sandbox-ah
+<span id="L98" class="LineNr"> 98 </span>      <span class="PreProc">var</span> line-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> sandbox, data
+<span id="L99" class="LineNr"> 99 </span>      <span class="PreProc">var</span> _line/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *line-ah
+<span id="L100" class="LineNr">100 </span>      <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar">&lt;-</span> copy _line
+<span id="L101" class="LineNr">101 </span>      initialize-line line, cursor-word-ah
+<span id="L102" class="LineNr">102 </span>      <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;&gt; &quot;</span>
+<span id="L103" class="LineNr">103 </span>      <span class="PreProc">loop</span> $repl:<span class="PreProc">loop</span>
+<span id="L104" class="LineNr">104 </span>    <span class="Delimiter">}</span>
+<span id="L105" class="LineNr">105 </span>    process env, key
+<span id="L106" class="LineNr">106 </span>    <span class="PreProc">loop</span>
+<span id="L107" class="LineNr">107 </span>  <span class="Delimiter">}</span>
+<span id="L108" class="LineNr">108 </span>  <a href='../../305keyboard.subx.html#L72'>enable-keyboard-type-mode</a>
+<span id="L109" class="LineNr">109 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/rpn.mu.html b/html/apps/tile/rpn.mu.html
new file mode 100644
index 00000000..39cbea35
--- /dev/null
+++ b/html/apps/tile/rpn.mu.html
@@ -0,0 +1,284 @@
+<!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 - apps/tile/rpn.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.CommentedCode { color: #8a8a8a; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/rpn.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/rpn.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L1'>evaluate</a></span> defs: (addr handle function), bindings: (addr table), scratch: (addr line), end: (addr word), out: (addr value-stack) <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <span class="PreProc">var</span> line/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar">&lt;-</span> copy scratch
+<span id="L3" class="LineNr">  3 </span>  <span class="PreProc">var</span> word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> line, data
+<span id="L4" class="LineNr">  4 </span>  <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *word-ah
+<span id="L5" class="LineNr">  5 </span>  <span class="PreProc">var</span> curr-stream-storage: (stream byte <span class="Constant">0x10</span>)
+<span id="L6" class="LineNr">  6 </span>  <span class="PreProc">var</span> curr-stream/<span class="Constant">edi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address curr-stream-storage
+<span id="L7" class="LineNr">  7 </span>  clear-value-stack out
+<span id="L8" class="LineNr">  8 </span>  $evaluate:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L9" class="LineNr">  9 </span>    <span class="muComment"># precondition (should never hit)</span>
+<span id="L10" class="LineNr"> 10 </span>    compare curr, <span class="Constant">0</span>
+<span id="L11" class="LineNr"> 11 </span>    <span class="PreProc">break-if-=</span>
+<span id="L12" class="LineNr"> 12 </span>    <span class="muComment"># update curr-stream</span>
+<span id="L13" class="LineNr"> 13 </span>    emit-word curr, curr-stream
+<span id="L14" class="LineNr"> 14 </span><span class="CommentedCode">#?     print-stream-to-real-screen curr-stream</span>
+<span id="L15" class="LineNr"> 15 </span><span class="CommentedCode">#?     print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L16" class="LineNr"> 16 </span>    $evaluate:process-word: <span class="Delimiter">{</span>
+<span id="L17" class="LineNr"> 17 </span>      <span class="muComment"># if curr-stream is an operator, perform it</span>
+<span id="L18" class="LineNr"> 18 </span>      <span class="Delimiter">{</span>
+<span id="L19" class="LineNr"> 19 </span>        <span class="PreProc">var</span> is-add?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../109stream-equal.subx.html#L9'>stream-data-equal?</a> curr-stream, <span class="Constant">&quot;+&quot;</span>
+<span id="L20" class="LineNr"> 20 </span>        compare is-add?, <span class="Constant">0</span>
+<span id="L21" class="LineNr"> 21 </span>        <span class="PreProc">break-if-=</span>
+<span id="L22" class="LineNr"> 22 </span>        <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack out
+<span id="L23" class="LineNr"> 23 </span>        <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
+<span id="L24" class="LineNr"> 24 </span>        <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack out
+<span id="L25" class="LineNr"> 25 </span>        a <span class="SpecialChar">&lt;-</span> add b
+<span id="L26" class="LineNr"> 26 </span>        push-int-to-value-stack out, a
+<span id="L27" class="LineNr"> 27 </span>        <span class="PreProc">break</span> $evaluate:process-word
+<span id="L28" class="LineNr"> 28 </span>      <span class="Delimiter">}</span>
+<span id="L29" class="LineNr"> 29 </span>      <span class="Delimiter">{</span>
+<span id="L30" class="LineNr"> 30 </span>        <span class="PreProc">var</span> is-sub?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../109stream-equal.subx.html#L9'>stream-data-equal?</a> curr-stream, <span class="Constant">&quot;-&quot;</span>
+<span id="L31" class="LineNr"> 31 </span>        compare is-sub?, <span class="Constant">0</span>
+<span id="L32" class="LineNr"> 32 </span>        <span class="PreProc">break-if-=</span>
+<span id="L33" class="LineNr"> 33 </span>        <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack out
+<span id="L34" class="LineNr"> 34 </span>        <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
+<span id="L35" class="LineNr"> 35 </span>        <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack out
+<span id="L36" class="LineNr"> 36 </span>        a <span class="SpecialChar">&lt;-</span> subtract b
+<span id="L37" class="LineNr"> 37 </span>        push-int-to-value-stack out, a
+<span id="L38" class="LineNr"> 38 </span>        <span class="PreProc">break</span> $evaluate:process-word
+<span id="L39" class="LineNr"> 39 </span>      <span class="Delimiter">}</span>
+<span id="L40" class="LineNr"> 40 </span>      <span class="Delimiter">{</span>
+<span id="L41" class="LineNr"> 41 </span>        <span class="PreProc">var</span> is-mul?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../109stream-equal.subx.html#L9'>stream-data-equal?</a> curr-stream, <span class="Constant">&quot;*&quot;</span>
+<span id="L42" class="LineNr"> 42 </span>        compare is-mul?, <span class="Constant">0</span>
+<span id="L43" class="LineNr"> 43 </span>        <span class="PreProc">break-if-=</span>
+<span id="L44" class="LineNr"> 44 </span>        <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack out
+<span id="L45" class="LineNr"> 45 </span>        <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
+<span id="L46" class="LineNr"> 46 </span>        <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack out
+<span id="L47" class="LineNr"> 47 </span>        a <span class="SpecialChar">&lt;-</span> multiply b
+<span id="L48" class="LineNr"> 48 </span>        push-int-to-value-stack out, a
+<span id="L49" class="LineNr"> 49 </span>        <span class="PreProc">break</span> $evaluate:process-word
+<span id="L50" class="LineNr"> 50 </span>      <span class="Delimiter">}</span>
+<span id="L51" class="LineNr"> 51 </span>      <span class="muComment"># if curr-stream is a known function name, call it appropriately</span>
+<span id="L52" class="LineNr"> 52 </span>      <span class="Delimiter">{</span>
+<span id="L53" class="LineNr"> 53 </span>        <span class="PreProc">var</span> callee-h: (handle function)
+<span id="L54" class="LineNr"> 54 </span>        <span class="PreProc">var</span> callee-ah/<span class="Constant">eax</span>: (addr handle function) <span class="SpecialChar">&lt;-</span> address callee-h
+<span id="L55" class="LineNr"> 55 </span>        <a href='rpn.mu.html#L101'>find-function</a> defs, curr-stream, callee-ah
+<span id="L56" class="LineNr"> 56 </span>        <span class="PreProc">var</span> callee/<span class="Constant">eax</span>: (addr function) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *callee-ah
+<span id="L57" class="LineNr"> 57 </span>        compare callee, <span class="Constant">0</span>
+<span id="L58" class="LineNr"> 58 </span>        <span class="PreProc">break-if-=</span>
+<span id="L59" class="LineNr"> 59 </span>        <a href='rpn.mu.html#L122'>perform-call</a> callee, out, defs
+<span id="L60" class="LineNr"> 60 </span>        <span class="PreProc">break</span> $evaluate:process-word
+<span id="L61" class="LineNr"> 61 </span>      <span class="Delimiter">}</span>
+<span id="L62" class="LineNr"> 62 </span>      <span class="muComment"># if it's a name, push its value</span>
+<span id="L63" class="LineNr"> 63 </span>      <span class="Delimiter">{</span>
+<span id="L64" class="LineNr"> 64 </span>        compare bindings, <span class="Constant">0</span>
+<span id="L65" class="LineNr"> 65 </span>        <span class="PreProc">break-if-=</span>
+<span id="L66" class="LineNr"> 66 </span>        <span class="PreProc">var</span> tmp: (handle array byte)
+<span id="L67" class="LineNr"> 67 </span>        <span class="PreProc">var</span> curr-string-ah/<span class="Constant">edx</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> address tmp
+<span id="L68" class="LineNr"> 68 </span>        <a href='../../310copy-bytes.subx.html#L59'>stream-to-string</a> curr-stream, curr-string-ah  <span class="muComment"># unfortunate leak</span>
+<span id="L69" class="LineNr"> 69 </span>        <span class="PreProc">var</span> curr-string/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-string-ah
+<span id="L70" class="LineNr"> 70 </span>        <span class="PreProc">var</span> val-storage: (handle value)
+<span id="L71" class="LineNr"> 71 </span>        <span class="PreProc">var</span> val-ah/<span class="Constant">edi</span>: (addr handle value) <span class="SpecialChar">&lt;-</span> address val-storage
+<span id="L72" class="LineNr"> 72 </span>        lookup-binding bindings, curr-string, val-ah
+<span id="L73" class="LineNr"> 73 </span>        <span class="PreProc">var</span> val/<span class="Constant">eax</span>: (addr value) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *val-ah
+<span id="L74" class="LineNr"> 74 </span>        compare val, <span class="Constant">0</span>
+<span id="L75" class="LineNr"> 75 </span>        <span class="PreProc">break-if-=</span>
+<span id="L76" class="LineNr"> 76 </span><span class="CommentedCode">#?         print-string-to-real-screen &quot;value of &quot;</span>
+<span id="L77" class="LineNr"> 77 </span><span class="CommentedCode">#?         print-string-to-real-screen curr-string</span>
+<span id="L78" class="LineNr"> 78 </span><span class="CommentedCode">#?         print-string-to-real-screen &quot; is &quot;</span>
+<span id="L79" class="LineNr"> 79 </span><span class="CommentedCode">#?         print-int32-hex-to-real-screen result</span>
+<span id="L80" class="LineNr"> 80 </span><span class="CommentedCode">#?         print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L81" class="LineNr"> 81 </span>        push-value-stack out, val
+<span id="L82" class="LineNr"> 82 </span>        <span class="PreProc">break</span> $evaluate:process-word
+<span id="L83" class="LineNr"> 83 </span>      <span class="Delimiter">}</span>
+<span id="L84" class="LineNr"> 84 </span>      <span class="muComment"># otherwise assume it's a literal int and push it</span>
+<span id="L85" class="LineNr"> 85 </span>      <span class="Delimiter">{</span>
+<span id="L86" class="LineNr"> 86 </span>        <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='../../311decimal-int.subx.html#L46'>parse-decimal-int-from-stream</a> curr-stream
+<span id="L87" class="LineNr"> 87 </span>        push-int-to-value-stack out, n
+<span id="L88" class="LineNr"> 88 </span>      <span class="Delimiter">}</span>
+<span id="L89" class="LineNr"> 89 </span>    <span class="Delimiter">}</span>
+<span id="L90" class="LineNr"> 90 </span>    <span class="muComment"># termination check</span>
+<span id="L91" class="LineNr"> 91 </span>    compare curr, end
+<span id="L92" class="LineNr"> 92 </span>    <span class="PreProc">break-if-=</span>
+<span id="L93" class="LineNr"> 93 </span>    <span class="muComment"># update</span>
+<span id="L94" class="LineNr"> 94 </span>    <span class="PreProc">var</span> next-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr, next
+<span id="L95" class="LineNr"> 95 </span>    curr <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-word-ah
+<span id="L96" class="LineNr"> 96 </span>    <span class="muComment">#</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="PreProc">loop</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="Delimiter">}</span>
+<span id="L99" class="LineNr"> 99 </span><span class="Delimiter">}</span>
+<span id="L100" class="LineNr">100 </span>
+<span id="L101" class="LineNr">101 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L101'>find-function</a></span> first: (addr handle function), name: (addr stream byte), out: (addr handle function) <span class="Delimiter">{</span>
+<span id="L102" class="LineNr">102 </span>  <span class="PreProc">var</span> curr/<span class="Constant">esi</span>: (addr handle function) <span class="SpecialChar">&lt;-</span> copy first
+<span id="L103" class="LineNr">103 </span>  $find-function:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>    <span class="PreProc">var</span> _f/<span class="Constant">eax</span>: (addr function) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr
+<span id="L105" class="LineNr">105 </span>    <span class="PreProc">var</span> f/<span class="Constant">ecx</span>: (addr function) <span class="SpecialChar">&lt;-</span> copy _f
+<span id="L106" class="LineNr">106 </span>    compare f, <span class="Constant">0</span>
+<span id="L107" class="LineNr">107 </span>    <span class="PreProc">break-if-=</span>
+<span id="L108" class="LineNr">108 </span>    <span class="PreProc">var</span> curr-name-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, name
+<span id="L109" class="LineNr">109 </span>    <span class="PreProc">var</span> curr-name/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-name-ah
+<span id="L110" class="LineNr">110 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../109stream-equal.subx.html#L9'>stream-data-equal?</a> name, curr-name
+<span id="L111" class="LineNr">111 </span>    compare done?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L112" class="LineNr">112 </span>    <span class="Delimiter">{</span>
+<span id="L113" class="LineNr">113 </span>      <span class="PreProc">break-if-=</span>
+<span id="L114" class="LineNr">114 </span>      <a href='../../120allocate.subx.html#L489'>copy-handle</a> *curr, out
+<span id="L115" class="LineNr">115 </span>      <span class="PreProc">break</span> $find-function:<span class="PreProc">loop</span>
+<span id="L116" class="LineNr">116 </span>    <span class="Delimiter">}</span>
+<span id="L117" class="LineNr">117 </span>    curr <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> f, next
+<span id="L118" class="LineNr">118 </span>    <span class="PreProc">loop</span>
+<span id="L119" class="LineNr">119 </span>  <span class="Delimiter">}</span>
+<span id="L120" class="LineNr">120 </span><span class="Delimiter">}</span>
+<span id="L121" class="LineNr">121 </span>
+<span id="L122" class="LineNr">122 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L122'>perform-call</a></span> _callee: (addr function), caller-stack: (addr value-stack), defs: (addr handle function) <span class="Delimiter">{</span>
+<span id="L123" class="LineNr">123 </span>  <span class="PreProc">var</span> callee/<span class="Constant">ecx</span>: (addr function) <span class="SpecialChar">&lt;-</span> copy _callee
+<span id="L124" class="LineNr">124 </span>  <span class="muComment"># create bindings for args</span>
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> table-storage: table
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> table/<span class="Constant">esi</span>: (addr table) <span class="SpecialChar">&lt;-</span> address table-storage
+<span id="L127" class="LineNr">127 </span>  initialize-table table, <span class="Constant">0x10</span>
+<span id="L128" class="LineNr">128 </span>  <a href='rpn.mu.html#L144'>bind-args</a> callee, caller-stack, table
+<span id="L129" class="LineNr">129 </span>  <span class="muComment"># obtain body</span>
+<span id="L130" class="LineNr">130 </span>  <span class="PreProc">var</span> body-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> callee, body
+<span id="L131" class="LineNr">131 </span>  <span class="PreProc">var</span> body/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *body-ah
+<span id="L132" class="LineNr">132 </span>  <span class="muComment"># perform call</span>
+<span id="L133" class="LineNr">133 </span>  <span class="PreProc">var</span> stack-storage: value-stack
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> stack/<span class="Constant">edi</span>: (addr value-stack) <span class="SpecialChar">&lt;-</span> address stack-storage
+<span id="L135" class="LineNr">135 </span>  initialize-value-stack stack, <span class="Constant">0x10</span>
+<span id="L136" class="LineNr">136 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;about to enter recursive eval\n&quot;</span>
+<span id="L137" class="LineNr">137 </span>  <a href='rpn.mu.html#L1'>evaluate</a> defs, table, body, <span class="Constant">0</span>, stack
+<span id="L138" class="LineNr">138 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;exited recursive eval\n&quot;</span>
+<span id="L139" class="LineNr">139 </span>  <span class="muComment"># stitch result from stack into caller</span>
+<span id="L140" class="LineNr">140 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack stack
+<span id="L141" class="LineNr">141 </span>  push-int-to-value-stack caller-stack, result
+<span id="L142" class="LineNr">142 </span><span class="Delimiter">}</span>
+<span id="L143" class="LineNr">143 </span>
+<span id="L144" class="LineNr">144 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L144'>bind-args</a></span> _callee: (addr function), caller-stack: (addr value-stack), table: (addr table) <span class="Delimiter">{</span>
+<span id="L145" class="LineNr">145 </span>  <span class="PreProc">var</span> callee/<span class="Constant">ecx</span>: (addr function) <span class="SpecialChar">&lt;-</span> copy _callee
+<span id="L146" class="LineNr">146 </span>  <span class="PreProc">var</span> curr-arg-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> callee, args
+<span id="L147" class="LineNr">147 </span>  <span class="PreProc">var</span> curr-arg/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *curr-arg-ah
+<span id="L148" class="LineNr">148 </span>  <span class="muComment">#</span>
+<span id="L149" class="LineNr">149 </span>  <span class="PreProc">var</span> curr-key-storage: (handle array byte)
+<span id="L150" class="LineNr">150 </span>  <span class="PreProc">var</span> curr-key/<span class="Constant">edx</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> address curr-key-storage
+<span id="L151" class="LineNr">151 </span>  <span class="Delimiter">{</span>
+<span id="L152" class="LineNr">152 </span>    compare curr-arg, <span class="Constant">0</span>
+<span id="L153" class="LineNr">153 </span>    <span class="PreProc">break-if-=</span>
+<span id="L154" class="LineNr">154 </span>    <span class="muComment"># create binding</span>
+<span id="L155" class="LineNr">155 </span>    word-to-string curr-arg, curr-key
+<span id="L156" class="LineNr">156 </span>    <span class="Delimiter">{</span>
+<span id="L157" class="LineNr">157 </span><span class="CommentedCode">#?       var tmp/eax: (addr array byte) &lt;- lookup *curr-key</span>
+<span id="L158" class="LineNr">158 </span><span class="CommentedCode">#?       print-string-to-real-screen &quot;binding &quot;</span>
+<span id="L159" class="LineNr">159 </span><span class="CommentedCode">#?       print-string-to-real-screen tmp</span>
+<span id="L160" class="LineNr">160 </span><span class="CommentedCode">#?       print-string-to-real-screen &quot; to &quot;</span>
+<span id="L161" class="LineNr">161 </span>      <span class="PreProc">var</span> curr-val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> pop-int-from-value-stack caller-stack
+<span id="L162" class="LineNr">162 </span><span class="CommentedCode">#?       print-int32-decimal-to-real-screen curr-val</span>
+<span id="L163" class="LineNr">163 </span><span class="CommentedCode">#?       print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L164" class="LineNr">164 </span>      bind-int-in-table table, curr-key, curr-val
+<span id="L165" class="LineNr">165 </span>    <span class="Delimiter">}</span>
+<span id="L166" class="LineNr">166 </span>    <span class="muComment">#</span>
+<span id="L167" class="LineNr">167 </span>    <span class="PreProc">var</span> next-arg-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-arg, next
+<span id="L168" class="LineNr">168 </span>    curr-arg <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-arg-ah
+<span id="L169" class="LineNr">169 </span>    <span class="PreProc">loop</span>
+<span id="L170" class="LineNr">170 </span>  <span class="Delimiter">}</span>
+<span id="L171" class="LineNr">171 </span><span class="Delimiter">}</span>
+<span id="L172" class="LineNr">172 </span>
+<span id="L173" class="LineNr">173 </span><span class="muComment"># Copy of 'simplify' that just tracks the maximum stack depth needed</span>
+<span id="L174" class="LineNr">174 </span><span class="muComment"># Doesn't actually need to simulate the stack, since every word has a predictable effect.</span>
+<span id="L175" class="LineNr">175 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L175'>max-stack-depth</a></span> first-word: (addr word), final-word: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">edi</span>: int <span class="Delimiter">{</span>
+<span id="L176" class="LineNr">176 </span>  <span class="PreProc">var</span> curr-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy first-word
+<span id="L177" class="LineNr">177 </span>  <span class="PreProc">var</span> curr-depth/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L178" class="LineNr">178 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L179" class="LineNr">179 </span>  $max-stack-depth:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L180" class="LineNr">180 </span>    $max-stack-depth:process-word: <span class="Delimiter">{</span>
+<span id="L181" class="LineNr">181 </span>      <span class="muComment"># handle operators</span>
+<span id="L182" class="LineNr">182 </span>      <span class="Delimiter">{</span>
+<span id="L183" class="LineNr">183 </span>        <span class="PreProc">var</span> is-add?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> word-equal? curr-word, <span class="Constant">&quot;+&quot;</span>
+<span id="L184" class="LineNr">184 </span>        compare is-add?, <span class="Constant">0</span>
+<span id="L185" class="LineNr">185 </span>        <span class="PreProc">break-if-=</span>
+<span id="L186" class="LineNr">186 </span>        curr-depth <span class="SpecialChar">&lt;-</span> decrement
+<span id="L187" class="LineNr">187 </span>        <span class="PreProc">break</span> $max-stack-depth:process-word
+<span id="L188" class="LineNr">188 </span>      <span class="Delimiter">}</span>
+<span id="L189" class="LineNr">189 </span>      <span class="Delimiter">{</span>
+<span id="L190" class="LineNr">190 </span>        <span class="PreProc">var</span> is-sub?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> word-equal? curr-word, <span class="Constant">&quot;-&quot;</span>
+<span id="L191" class="LineNr">191 </span>        compare is-sub?, <span class="Constant">0</span>
+<span id="L192" class="LineNr">192 </span>        <span class="PreProc">break-if-=</span>
+<span id="L193" class="LineNr">193 </span>        curr-depth <span class="SpecialChar">&lt;-</span> decrement
+<span id="L194" class="LineNr">194 </span>        <span class="PreProc">break</span> $max-stack-depth:process-word
+<span id="L195" class="LineNr">195 </span>      <span class="Delimiter">}</span>
+<span id="L196" class="LineNr">196 </span>      <span class="Delimiter">{</span>
+<span id="L197" class="LineNr">197 </span>        <span class="PreProc">var</span> is-mul?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> word-equal? curr-word, <span class="Constant">&quot;*&quot;</span>
+<span id="L198" class="LineNr">198 </span>        compare is-mul?, <span class="Constant">0</span>
+<span id="L199" class="LineNr">199 </span>        <span class="PreProc">break-if-=</span>
+<span id="L200" class="LineNr">200 </span>        curr-depth <span class="SpecialChar">&lt;-</span> decrement
+<span id="L201" class="LineNr">201 </span>        <span class="PreProc">break</span> $max-stack-depth:process-word
+<span id="L202" class="LineNr">202 </span>      <span class="Delimiter">}</span>
+<span id="L203" class="LineNr">203 </span>      <span class="muComment"># otherwise it's an int (do we need error-checking?)</span>
+<span id="L204" class="LineNr">204 </span>      curr-depth <span class="SpecialChar">&lt;-</span> increment
+<span id="L205" class="LineNr">205 </span>      <span class="muComment"># update max depth if necessary</span>
+<span id="L206" class="LineNr">206 </span>      <span class="Delimiter">{</span>
+<span id="L207" class="LineNr">207 </span>        compare curr-depth, result
+<span id="L208" class="LineNr">208 </span>        <span class="PreProc">break-if-&lt;=</span>
+<span id="L209" class="LineNr">209 </span>        result <span class="SpecialChar">&lt;-</span> copy curr-depth
+<span id="L210" class="LineNr">210 </span>      <span class="Delimiter">}</span>
+<span id="L211" class="LineNr">211 </span>    <span class="Delimiter">}</span>
+<span id="L212" class="LineNr">212 </span>    <span class="muComment"># if curr-word == final-word break</span>
+<span id="L213" class="LineNr">213 </span>    compare curr-word, final-word
+<span id="L214" class="LineNr">214 </span>    <span class="PreProc">break-if-=</span>
+<span id="L215" class="LineNr">215 </span>    <span class="muComment"># curr-word = curr-word-&gt;next</span>
+<span id="L216" class="LineNr">216 </span>    <span class="PreProc">var</span> next-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
+<span id="L217" class="LineNr">217 </span>    curr-word <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-word-ah
+<span id="L218" class="LineNr">218 </span>    <span class="muComment">#</span>
+<span id="L219" class="LineNr">219 </span>    <span class="PreProc">loop</span>
+<span id="L220" class="LineNr">220 </span>  <span class="Delimiter">}</span>
+<span id="L221" class="LineNr">221 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/surface.mu.html b/html/apps/tile/surface.mu.html
new file mode 100644
index 00000000..c77b1d79
--- /dev/null
+++ b/html/apps/tile/surface.mu.html
@@ -0,0 +1,481 @@
+<!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 - apps/tile/surface.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
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+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.CommentedCode { color: #8a8a8a; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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.
+   */
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+    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/apps/tile/surface.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/surface.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># A surface is a large 2-D grid that you can only see a subset of through the</span>
+<span id="L2" class="LineNr">  2 </span><span class="muComment"># screen.</span>
+<span id="L3" class="LineNr">  3 </span><span class="muComment"># Imagine a pin going through both surface and screen. As we update the</span>
+<span id="L4" class="LineNr">  4 </span><span class="muComment"># surface contents, the pinned point stays fixed, providing a sense of</span>
+<span id="L5" class="LineNr">  5 </span><span class="muComment"># stability.</span>
+<span id="L6" class="LineNr">  6 </span>
+<span id="L7" class="LineNr">  7 </span><span class="PreProc">type</span> <a href='surface.mu.html#L7'>surface</a> <span class="Delimiter">{</span>
+<span id="L8" class="LineNr">  8 </span>  <a href='../../405screen.mu.html#L9'>screen</a>: (handle <a href='../../405screen.mu.html#L9'>screen</a>)
+<span id="L9" class="LineNr">  9 </span>  data: (handle array <a href='../../405screen.mu.html#L20'>screen-cell</a>)
+<span id="L10" class="LineNr"> 10 </span>  nrows: int
+<span id="L11" class="LineNr"> 11 </span>  ncols: int
+<span id="L12" class="LineNr"> 12 </span>  screen-nrows: int
+<span id="L13" class="LineNr"> 13 </span>  screen-ncols: int
+<span id="L14" class="LineNr"> 14 </span>  pin-row: int  <span class="muComment"># 1-indexed</span>
+<span id="L15" class="LineNr"> 15 </span>  pin-col: int  <span class="muComment"># 1-indexed</span>
+<span id="L16" class="LineNr"> 16 </span>  pin-screen-row: int  <span class="muComment"># 1-indexed</span>
+<span id="L17" class="LineNr"> 17 </span>  pin-screen-col: int  <span class="muComment"># 1-indexed</span>
+<span id="L18" class="LineNr"> 18 </span><span class="Delimiter">}</span>
+<span id="L19" class="LineNr"> 19 </span>
+<span id="L20" class="LineNr"> 20 </span><span class="muComment"># intended mostly for tests; could be slow</span>
+<span id="L21" class="LineNr"> 21 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L21'>initialize-surface-with</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), in: (addr array byte) <span class="Delimiter">{</span>
+<span id="L22" class="LineNr"> 22 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L23" class="LineNr"> 23 </span>  <span class="muComment"># fill in nrows, ncols</span>
+<span id="L24" class="LineNr"> 24 </span>  <span class="PreProc">var</span> nrows/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='surface.mu.html#L265'>num-lines</a> in
+<span id="L25" class="LineNr"> 25 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, nrows
+<span id="L26" class="LineNr"> 26 </span>  copy-to *dest, nrows
+<span id="L27" class="LineNr"> 27 </span>  <span class="PreProc">var</span> ncols/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> <a href='surface.mu.html#L282'>first-line-length</a> in  <span class="muComment"># assume all lines are the same length</span>
+<span id="L28" class="LineNr"> 28 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, ncols
+<span id="L29" class="LineNr"> 29 </span>  copy-to *dest, ncols
+<span id="L30" class="LineNr"> 30 </span>  <span class="muComment"># fill in data</span>
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> len/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy nrows
+<span id="L32" class="LineNr"> 32 </span>  len <span class="SpecialChar">&lt;-</span> multiply ncols
+<span id="L33" class="LineNr"> 33 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L34" class="LineNr"> 34 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr handle array <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> out, data
+<span id="L35" class="LineNr"> 35 </span>  populate data, len
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">var</span> data-addr/<span class="Constant">eax</span>: (addr array <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data
+<span id="L37" class="LineNr"> 37 </span>  <a href='surface.mu.html#L299'>fill-in</a> data-addr, in
+<span id="L38" class="LineNr"> 38 </span>  <span class="muComment"># fill in screen-nrows, screen-ncols</span>
+<span id="L39" class="LineNr"> 39 </span>  <span class="Delimiter">{</span>
+<span id="L40" class="LineNr"> 40 </span>    <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L41" class="LineNr"> 41 </span>    <span class="PreProc">var</span> _screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L42" class="LineNr"> 42 </span>    <span class="PreProc">var</span> screen-addr/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy _screen-addr
+<span id="L43" class="LineNr"> 43 </span>    <span class="PreProc">var</span> nrows/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L44" class="LineNr"> 44 </span>    <span class="PreProc">var</span> ncols/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L45" class="LineNr"> 45 </span>    nrows, ncols <span class="SpecialChar">&lt;-</span> <a href='../../405screen.mu.html#L60'>screen-size</a> screen-addr
+<span id="L46" class="LineNr"> 46 </span>    <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, screen-nrows
+<span id="L47" class="LineNr"> 47 </span>    copy-to *dest, nrows
+<span id="L48" class="LineNr"> 48 </span>    dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, screen-ncols
+<span id="L49" class="LineNr"> 49 </span>    copy-to *dest, ncols
+<span id="L50" class="LineNr"> 50 </span>  <span class="Delimiter">}</span>
+<span id="L51" class="LineNr"> 51 </span><span class="Delimiter">}</span>
+<span id="L52" class="LineNr"> 52 </span>
+<span id="L53" class="LineNr"> 53 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L53'>pin-surface-at</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), r: int, c: int <span class="Delimiter">{</span>
+<span id="L54" class="LineNr"> 54 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L55" class="LineNr"> 55 </span>  <span class="PreProc">var</span> dest/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-row
+<span id="L56" class="LineNr"> 56 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy r
+<span id="L57" class="LineNr"> 57 </span>  copy-to *dest, tmp
+<span id="L58" class="LineNr"> 58 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-col
+<span id="L59" class="LineNr"> 59 </span>  tmp <span class="SpecialChar">&lt;-</span> copy c
+<span id="L60" class="LineNr"> 60 </span>  copy-to *dest, tmp
+<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">}</span>
+<span id="L62" class="LineNr"> 62 </span>
+<span id="L63" class="LineNr"> 63 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L63'>pin-surface-to</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), sr: int, sc: int <span class="Delimiter">{</span>
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> dest/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-screen-row
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy sr
+<span id="L67" class="LineNr"> 67 </span>  copy-to *dest, tmp
+<span id="L68" class="LineNr"> 68 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-screen-col
+<span id="L69" class="LineNr"> 69 </span>  tmp <span class="SpecialChar">&lt;-</span> copy sc
+<span id="L70" class="LineNr"> 70 </span>  copy-to *dest, tmp
+<span id="L71" class="LineNr"> 71 </span><span class="Delimiter">}</span>
+<span id="L72" class="LineNr"> 72 </span>
+<span id="L73" class="LineNr"> 73 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L73'>render-surface</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="Delimiter">{</span>
+<span id="L74" class="LineNr"> 74 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;render-surface\n&quot;</span>
+<span id="L75" class="LineNr"> 75 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L76" class="LineNr"> 76 </span>  <span class="muComment"># clear screen</span>
+<span id="L77" class="LineNr"> 77 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L78" class="LineNr"> 78 </span>  <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L79" class="LineNr"> 79 </span>  <a href='../../405screen.mu.html#L80'>clear-screen</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L80" class="LineNr"> 80 </span>  <span class="muComment">#</span>
+<span id="L81" class="LineNr"> 81 </span>  <span class="PreProc">var</span> nrows/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, screen-nrows
+<span id="L82" class="LineNr"> 82 </span>  <span class="PreProc">var</span> ncols/<span class="Constant">ebx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, screen-ncols
+<span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> screen-row/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L84" class="LineNr"> 84 </span>  <span class="Delimiter">{</span>
+<span id="L85" class="LineNr"> 85 </span>    compare screen-row, *nrows
+<span id="L86" class="LineNr"> 86 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L87" class="LineNr"> 87 </span>    <span class="PreProc">var</span> screen-col/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L88" class="LineNr"> 88 </span>    <span class="Delimiter">{</span>
+<span id="L89" class="LineNr"> 89 </span>      compare screen-col, *ncols
+<span id="L90" class="LineNr"> 90 </span>      <span class="PreProc">break-if-&gt;</span>
+<span id="L91" class="LineNr"> 91 </span><span class="CommentedCode">#?       print-string-to-real-screen &quot;X&quot;</span>
+<span id="L92" class="LineNr"> 92 </span>      <a href='surface.mu.html#L102'>print-surface-cell-at</a> self, screen-row, screen-col
+<span id="L93" class="LineNr"> 93 </span>      screen-col <span class="SpecialChar">&lt;-</span> increment
+<span id="L94" class="LineNr"> 94 </span>      <span class="PreProc">loop</span>
+<span id="L95" class="LineNr"> 95 </span>    <span class="Delimiter">}</span>
+<span id="L96" class="LineNr"> 96 </span><span class="CommentedCode">#?     print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L97" class="LineNr"> 97 </span>    screen-row <span class="SpecialChar">&lt;-</span> increment
+<span id="L98" class="LineNr"> 98 </span>    <span class="PreProc">loop</span>
+<span id="L99" class="LineNr"> 99 </span>  <span class="Delimiter">}</span>
+<span id="L100" class="LineNr">100 </span><span class="Delimiter">}</span>
+<span id="L101" class="LineNr">101 </span>
+<span id="L102" class="LineNr">102 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L102'>print-surface-cell-at</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), screen-row: int, screen-col: int <span class="Delimiter">{</span>
+<span id="L103" class="LineNr">103 </span>$print-surface-cell-at:body: <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> row/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='surface.mu.html#L196'>screen-row-to-surface</a> self, screen-row
+<span id="L106" class="LineNr">106 </span>  <span class="PreProc">var</span> col/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> <a href='surface.mu.html#L237'>screen-col-to-surface</a> self, screen-col
+<span id="L107" class="LineNr">107 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L108" class="LineNr">108 </span>  <span class="PreProc">var</span> _data-addr/<span class="Constant">eax</span>: (addr array <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> data-addr/<span class="Constant">edi</span>: (addr array <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> copy _data-addr
+<span id="L110" class="LineNr">110 </span>  <span class="PreProc">var</span> idx/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='surface.mu.html#L169'>surface-screen-cell-index</a> self, row, col
+<span id="L111" class="LineNr">111 </span>  <span class="muComment"># if out of bounds, print ' '</span>
+<span id="L112" class="LineNr">112 </span>  compare idx, <span class="Constant">0</span>
+<span id="L113" class="LineNr">113 </span>  <span class="Delimiter">{</span>
+<span id="L114" class="LineNr">114 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L115" class="LineNr">115 </span>    <span class="PreProc">var</span> space/<span class="Constant">ecx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x20</span>
+<span id="L116" class="LineNr">116 </span>    <span class="PreProc">var</span> screen-ah/<span class="Constant">edi</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L117" class="LineNr">117 </span>    <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L118" class="LineNr">118 </span>    <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, space
+<span id="L119" class="LineNr">119 </span>    <span class="PreProc">break</span> $print-surface-cell-at:body
+<span id="L120" class="LineNr">120 </span>  <span class="Delimiter">}</span>
+<span id="L121" class="LineNr">121 </span>  <span class="muComment"># otherwise print the appropriate screen-cell</span>
+<span id="L122" class="LineNr">122 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data-addr, idx
+<span id="L123" class="LineNr">123 </span>  <span class="PreProc">var</span> src/<span class="Constant">ecx</span>: (addr <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index data-addr, offset
+<span id="L124" class="LineNr">124 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">edi</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L126" class="LineNr">126 </span>  <a href='surface.mu.html#L131'>print-screen-cell</a> <a href='../../405screen.mu.html#L9'>screen</a>, src
+<span id="L127" class="LineNr">127 </span><span class="Delimiter">}</span>
+<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span>
+<span id="L129" class="LineNr">129 </span>
+<span id="L130" class="LineNr">130 </span><span class="muComment"># print a cell with all its formatting at the cursor location</span>
+<span id="L131" class="LineNr">131 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L131'>print-screen-cell</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), _cell: (addr <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="Delimiter">{</span>
+<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> cell/<span class="Constant">esi</span>: (addr <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> copy _cell
+<span id="L133" class="LineNr">133 </span>  <a href='../../405screen.mu.html#L496'>reset-formatting</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> fg/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, color
+<span id="L135" class="LineNr">135 </span>  <span class="PreProc">var</span> bg/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, background-color
+<span id="L136" class="LineNr">136 </span>  <a href='../../405screen.mu.html#L518'>start-color</a> <a href='../../405screen.mu.html#L9'>screen</a>, *fg, *bg
+<span id="L137" class="LineNr">137 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, bold?
+<span id="L138" class="LineNr">138 </span>  <span class="Delimiter">{</span>
+<span id="L139" class="LineNr">139 </span>    compare *tmp, <span class="Constant">0</span>
+<span id="L140" class="LineNr">140 </span>    <span class="PreProc">break-if-=</span>
+<span id="L141" class="LineNr">141 </span>    <a href='../../405screen.mu.html#L541'>start-bold</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L142" class="LineNr">142 </span>  <span class="Delimiter">}</span>
+<span id="L143" class="LineNr">143 </span>  <span class="Delimiter">{</span>
+<span id="L144" class="LineNr">144 </span>    tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, underline?
+<span id="L145" class="LineNr">145 </span>    compare *tmp, <span class="Constant">0</span>
+<span id="L146" class="LineNr">146 </span>    <span class="PreProc">break-if-=</span>
+<span id="L147" class="LineNr">147 </span>    <a href='../../405screen.mu.html#L560'>start-underline</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L148" class="LineNr">148 </span>  <span class="Delimiter">}</span>
+<span id="L149" class="LineNr">149 </span>  <span class="Delimiter">{</span>
+<span id="L150" class="LineNr">150 </span>    tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, reverse?
+<span id="L151" class="LineNr">151 </span>    compare *tmp, <span class="Constant">0</span>
+<span id="L152" class="LineNr">152 </span>    <span class="PreProc">break-if-=</span>
+<span id="L153" class="LineNr">153 </span>    <a href='../../405screen.mu.html#L579'>start-reverse-video</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L154" class="LineNr">154 </span>  <span class="Delimiter">}</span>
+<span id="L155" class="LineNr">155 </span>  <span class="Delimiter">{</span>
+<span id="L156" class="LineNr">156 </span>    tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, blink?
+<span id="L157" class="LineNr">157 </span>    compare *tmp, <span class="Constant">0</span>
+<span id="L158" class="LineNr">158 </span>    <span class="PreProc">break-if-=</span>
+<span id="L159" class="LineNr">159 </span>    <a href='../../405screen.mu.html#L598'>start-blinking</a> <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L160" class="LineNr">160 </span>  <span class="Delimiter">}</span>
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> cell, data
+<span id="L162" class="LineNr">162 </span>  <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, *g
+<span id="L163" class="LineNr">163 </span><span class="CommentedCode">#?   var g2/eax: grapheme &lt;- copy *g</span>
+<span id="L164" class="LineNr">164 </span><span class="CommentedCode">#?   var g3/eax: int &lt;- copy g2</span>
+<span id="L165" class="LineNr">165 </span><span class="CommentedCode">#?   print-int32-hex-to-real-screen g3</span>
+<span id="L166" class="LineNr">166 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L167" class="LineNr">167 </span><span class="Delimiter">}</span>
+<span id="L168" class="LineNr">168 </span>
+<span id="L169" class="LineNr">169 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L169'>surface-screen-cell-index</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), row: int, col: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L170" class="LineNr">170 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L171" class="LineNr">171 </span><span class="CommentedCode">#?   print-int32-hex-to-real-screen row</span>
+<span id="L172" class="LineNr">172 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;, &quot;</span>
+<span id="L173" class="LineNr">173 </span><span class="CommentedCode">#?   print-int32-hex-to-real-screen col</span>
+<span id="L174" class="LineNr">174 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L175" class="LineNr">175 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">-1</span>
+<span id="L176" class="LineNr">176 </span>  compare row, <span class="Constant">1</span>
+<span id="L177" class="LineNr">177 </span>  <span class="PreProc">break-if-&lt;</span>
+<span id="L178" class="LineNr">178 </span>  compare col, <span class="Constant">1</span>
+<span id="L179" class="LineNr">179 </span>  <span class="PreProc">break-if-&lt;</span>
+<span id="L180" class="LineNr">180 </span>  <span class="PreProc">var</span> nrows-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, nrows
+<span id="L181" class="LineNr">181 </span>  <span class="PreProc">var</span> nrows/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy *nrows-addr
+<span id="L182" class="LineNr">182 </span>  compare row, nrows
+<span id="L183" class="LineNr">183 </span>  <span class="PreProc">break-if-&gt;</span>
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> ncols-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, ncols
+<span id="L185" class="LineNr">185 </span>  <span class="PreProc">var</span> ncols/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy *ncols-addr
+<span id="L186" class="LineNr">186 </span>  compare col, ncols
+<span id="L187" class="LineNr">187 </span>  <span class="PreProc">break-if-&gt;</span>
+<span id="L188" class="LineNr">188 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;!\n&quot;</span>
+<span id="L189" class="LineNr">189 </span>  result <span class="SpecialChar">&lt;-</span> copy row
+<span id="L190" class="LineNr">190 </span>  result <span class="SpecialChar">&lt;-</span> subtract <span class="Constant">1</span>
+<span id="L191" class="LineNr">191 </span>  result <span class="SpecialChar">&lt;-</span> multiply ncols
+<span id="L192" class="LineNr">192 </span>  result <span class="SpecialChar">&lt;-</span> add col
+<span id="L193" class="LineNr">193 </span>  result <span class="SpecialChar">&lt;-</span> subtract <span class="Constant">1</span>
+<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span>
+<span id="L195" class="LineNr">195 </span>
+<span id="L196" class="LineNr">196 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L196'>screen-row-to-surface</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), screen-row: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L197" class="LineNr">197 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L198" class="LineNr">198 </span>  result <span class="SpecialChar">&lt;-</span> copy screen-row
+<span id="L199" class="LineNr">199 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-row
+<span id="L200" class="LineNr">200 </span>  result <span class="SpecialChar">&lt;-</span> add *tmp
+<span id="L201" class="LineNr">201 </span>  tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-screen-row
+<span id="L202" class="LineNr">202 </span>  result <span class="SpecialChar">&lt;-</span> subtract *tmp
+<span id="L203" class="LineNr">203 </span><span class="Delimiter">}</span>
+<span id="L204" class="LineNr">204 </span>
+<span id="L205" class="LineNr">205 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L205'>max</a></span> a: int, b: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L206" class="LineNr">206 </span>$max:body: <span class="Delimiter">{</span>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> a2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy a
+<span id="L208" class="LineNr">208 </span>  compare a2, b
+<span id="L209" class="LineNr">209 </span>  <span class="Delimiter">{</span>
+<span id="L210" class="LineNr">210 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L211" class="LineNr">211 </span>    result <span class="SpecialChar">&lt;-</span> copy b
+<span id="L212" class="LineNr">212 </span>    <span class="PreProc">break</span> $max:body
+<span id="L213" class="LineNr">213 </span>  <span class="Delimiter">}</span>
+<span id="L214" class="LineNr">214 </span>  <span class="Delimiter">{</span>
+<span id="L215" class="LineNr">215 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L216" class="LineNr">216 </span>    result <span class="SpecialChar">&lt;-</span> copy a2
+<span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
+<span id="L218" class="LineNr">218 </span><span class="Delimiter">}</span>
+<span id="L219" class="LineNr">219 </span><span class="Delimiter">}</span>
+<span id="L220" class="LineNr">220 </span>
+<span id="L221" class="LineNr">221 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L221'>min</a></span> a: int, b: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L222" class="LineNr">222 </span>$min:body: <span class="Delimiter">{</span>
+<span id="L223" class="LineNr">223 </span>  <span class="PreProc">var</span> a2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy a
+<span id="L224" class="LineNr">224 </span>  compare a2, b
+<span id="L225" class="LineNr">225 </span>  <span class="Delimiter">{</span>
+<span id="L226" class="LineNr">226 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L227" class="LineNr">227 </span>    result <span class="SpecialChar">&lt;-</span> copy a2
+<span id="L228" class="LineNr">228 </span>    <span class="PreProc">break</span> $min:body
+<span id="L229" class="LineNr">229 </span>  <span class="Delimiter">}</span>
+<span id="L230" class="LineNr">230 </span>  <span class="Delimiter">{</span>
+<span id="L231" class="LineNr">231 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L232" class="LineNr">232 </span>    result <span class="SpecialChar">&lt;-</span> copy b
+<span id="L233" class="LineNr">233 </span>  <span class="Delimiter">}</span>
+<span id="L234" class="LineNr">234 </span><span class="Delimiter">}</span>
+<span id="L235" class="LineNr">235 </span><span class="Delimiter">}</span>
+<span id="L236" class="LineNr">236 </span>
+<span id="L237" class="LineNr">237 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L237'>screen-col-to-surface</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), screen-col: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">edx</span>: int <span class="Delimiter">{</span>
+<span id="L238" class="LineNr">238 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L239" class="LineNr">239 </span>  result <span class="SpecialChar">&lt;-</span> copy screen-col
+<span id="L240" class="LineNr">240 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-col
+<span id="L241" class="LineNr">241 </span>  result <span class="SpecialChar">&lt;-</span> add *tmp
+<span id="L242" class="LineNr">242 </span>  tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-screen-col
+<span id="L243" class="LineNr">243 </span>  result <span class="SpecialChar">&lt;-</span> subtract *tmp
+<span id="L244" class="LineNr">244 </span><span class="Delimiter">}</span>
+<span id="L245" class="LineNr">245 </span>
+<span id="L246" class="LineNr">246 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L246'>surface-row-to-screen</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), row: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L247" class="LineNr">247 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L248" class="LineNr">248 </span>  result <span class="SpecialChar">&lt;-</span> copy row
+<span id="L249" class="LineNr">249 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-screen-row
+<span id="L250" class="LineNr">250 </span>  result <span class="SpecialChar">&lt;-</span> add *tmp
+<span id="L251" class="LineNr">251 </span>  tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-row
+<span id="L252" class="LineNr">252 </span>  result <span class="SpecialChar">&lt;-</span> subtract *tmp
+<span id="L253" class="LineNr">253 </span><span class="Delimiter">}</span>
+<span id="L254" class="LineNr">254 </span>
+<span id="L255" class="LineNr">255 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L255'>surface-col-to-screen</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), col: int<span class="PreProc"> -&gt; </span>result/<span class="Constant">edx</span>: int <span class="Delimiter">{</span>
+<span id="L256" class="LineNr">256 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L257" class="LineNr">257 </span>  result <span class="SpecialChar">&lt;-</span> copy col
+<span id="L258" class="LineNr">258 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-screen-col
+<span id="L259" class="LineNr">259 </span>  result <span class="SpecialChar">&lt;-</span> add *tmp
+<span id="L260" class="LineNr">260 </span>  tmp <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, pin-col
+<span id="L261" class="LineNr">261 </span>  result <span class="SpecialChar">&lt;-</span> subtract *tmp
+<span id="L262" class="LineNr">262 </span><span class="Delimiter">}</span>
+<span id="L263" class="LineNr">263 </span>
+<span id="L264" class="LineNr">264 </span><span class="muComment"># assumes last line doesn't end in '\n'</span>
+<span id="L265" class="LineNr">265 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L265'>num-lines</a></span> in: (addr array byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L266" class="LineNr">266 </span>  <span class="PreProc">var</span> s: (stream byte <span class="Constant">0x100</span>)
+<span id="L267" class="LineNr">267 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address s
+<span id="L268" class="LineNr">268 </span>  <a href='../../108write.subx.html#L24'>write</a> s-addr, in
+<span id="L269" class="LineNr">269 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L270" class="LineNr">270 </span>  <span class="Delimiter">{</span>
+<span id="L271" class="LineNr">271 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> s-addr
+<span id="L272" class="LineNr">272 </span>    compare done?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L273" class="LineNr">273 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L274" class="LineNr">274 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L160'>read-grapheme</a> s-addr
+<span id="L275" class="LineNr">275 </span>    compare g, <span class="Constant">0xa</span>  <span class="muComment"># newline</span>
+<span id="L276" class="LineNr">276 </span>    <span class="PreProc">loop-if-!=</span>
+<span id="L277" class="LineNr">277 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L278" class="LineNr">278 </span>    <span class="PreProc">loop</span>
+<span id="L279" class="LineNr">279 </span>  <span class="Delimiter">}</span>
+<span id="L280" class="LineNr">280 </span><span class="Delimiter">}</span>
+<span id="L281" class="LineNr">281 </span>
+<span id="L282" class="LineNr">282 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L282'>first-line-length</a></span> in: (addr array byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">edx</span>: int <span class="Delimiter">{</span>
+<span id="L283" class="LineNr">283 </span>  <span class="PreProc">var</span> s: (stream byte <span class="Constant">0x100</span>)
+<span id="L284" class="LineNr">284 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address s
+<span id="L285" class="LineNr">285 </span>  <a href='../../108write.subx.html#L24'>write</a> s-addr, in
+<span id="L286" class="LineNr">286 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L287" class="LineNr">287 </span>  <span class="Delimiter">{</span>
+<span id="L288" class="LineNr">288 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> s-addr
+<span id="L289" class="LineNr">289 </span>    compare done?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L290" class="LineNr">290 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L291" class="LineNr">291 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L160'>read-grapheme</a> s-addr
+<span id="L292" class="LineNr">292 </span>    compare g, <span class="Constant">0xa</span>  <span class="muComment"># newline</span>
+<span id="L293" class="LineNr">293 </span>    <span class="PreProc">break-if-=</span>
+<span id="L294" class="LineNr">294 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L295" class="LineNr">295 </span>    <span class="PreProc">loop</span>
+<span id="L296" class="LineNr">296 </span>  <span class="Delimiter">}</span>
+<span id="L297" class="LineNr">297 </span><span class="Delimiter">}</span>
+<span id="L298" class="LineNr">298 </span>
+<span id="L299" class="LineNr">299 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L299'>fill-in</a></span> _out: (addr array <a href='../../405screen.mu.html#L20'>screen-cell</a>), in: (addr array byte) <span class="Delimiter">{</span>
+<span id="L300" class="LineNr">300 </span>  <span class="PreProc">var</span> s: (stream byte <span class="Constant">0x100</span>)
+<span id="L301" class="LineNr">301 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr array <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> copy _out
+<span id="L302" class="LineNr">302 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address s
+<span id="L303" class="LineNr">303 </span>  <a href='../../108write.subx.html#L24'>write</a> s-addr, in
+<span id="L304" class="LineNr">304 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L305" class="LineNr">305 </span>  <span class="Delimiter">{</span>
+<span id="L306" class="LineNr">306 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> s-addr
+<span id="L307" class="LineNr">307 </span>    compare done?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L308" class="LineNr">308 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L309" class="LineNr">309 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L160'>read-grapheme</a> s-addr
+<span id="L310" class="LineNr">310 </span>    compare g, <span class="Constant">0xa</span>  <span class="muComment"># newline</span>
+<span id="L311" class="LineNr">311 </span>    <span class="PreProc">loop-if-=</span>
+<span id="L312" class="LineNr">312 </span>    <span class="PreProc">var</span> offset/<span class="Constant">edx</span>: (offset <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset out, idx
+<span id="L313" class="LineNr">313 </span>    <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr <a href='../../405screen.mu.html#L20'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index out, offset
+<span id="L314" class="LineNr">314 </span>    <span class="PreProc">var</span> dest2/<span class="Constant">edx</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> dest, data
+<span id="L315" class="LineNr">315 </span>    copy-to *dest2, g
+<span id="L316" class="LineNr">316 </span>    idx <span class="SpecialChar">&lt;-</span> increment
+<span id="L317" class="LineNr">317 </span>    <span class="PreProc">loop</span>
+<span id="L318" class="LineNr">318 </span>  <span class="Delimiter">}</span>
+<span id="L319" class="LineNr">319 </span><span class="Delimiter">}</span>
+<span id="L320" class="LineNr">320 </span>
+<span id="L321" class="LineNr">321 </span><span class="muComment"># pin (1, 1) to (1, 1) on screen</span>
+<span id="L322" class="LineNr">322 </span><span class="PreProc">fn</span> <span class="muTest"><a href='surface.mu.html#L322'>test-surface-pin-at-origin</a></span> <span class="Delimiter">{</span>
+<span id="L323" class="LineNr">323 </span>  <span class="PreProc">var</span> s: <a href='surface.mu.html#L7'>surface</a>
+<span id="L324" class="LineNr">324 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> address s
+<span id="L325" class="LineNr">325 </span>  <span class="muComment"># surface contents are a fixed grid with 8 rows and 6 columns</span>
+<span id="L326" class="LineNr">326 </span>  <span class="muComment"># (strip vowels second time around to break vertical alignment of letters)</span>
+<span id="L327" class="LineNr">327 </span>  <a href='surface.mu.html#L408'>initialize-surface-with-fake-screen</a> s-addr, <span class="Constant">3</span>, <span class="Constant">4</span>, <span class="Constant">&quot;abcdef\nghijkl\nmnopqr\nstuvwx\nyzabcd\nfghjkl\nmnpqrs\ntvwxyz&quot;</span>
+<span id="L328" class="LineNr">328 </span>  <a href='surface.mu.html#L53'>pin-surface-at</a> s-addr, <span class="Constant">1</span>, <span class="Constant">1</span>  <span class="muComment"># surface row and column</span>
+<span id="L329" class="LineNr">329 </span>  <a href='surface.mu.html#L63'>pin-surface-to</a> s-addr, <span class="Constant">1</span>, <span class="Constant">1</span>  <span class="muComment"># screen row and column</span>
+<span id="L330" class="LineNr">330 </span>  <a href='surface.mu.html#L73'>render-surface</a> s-addr
+<span id="L331" class="LineNr">331 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> s-addr, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L332" class="LineNr">332 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L333" class="LineNr">333 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">1</span>, <span class="Constant">&quot;abcd&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-at-origin&quot;</span>
+<span id="L334" class="LineNr">334 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">2</span>, <span class="Constant">&quot;ghij&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-at-origin&quot;</span>
+<span id="L335" class="LineNr">335 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">3</span>, <span class="Constant">&quot;mnop&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-at-origin&quot;</span>
+<span id="L336" class="LineNr">336 </span><span class="Delimiter">}</span>
+<span id="L337" class="LineNr">337 </span>
+<span id="L338" class="LineNr">338 </span><span class="muComment"># pin (1, 1) to (2, 1) on screen; screen goes past edge of the universe</span>
+<span id="L339" class="LineNr">339 </span><span class="PreProc">fn</span> <span class="muTest"><a href='surface.mu.html#L339'>test-surface-pin-2</a></span> <span class="Delimiter">{</span>
+<span id="L340" class="LineNr">340 </span>  <span class="PreProc">var</span> s: <a href='surface.mu.html#L7'>surface</a>
+<span id="L341" class="LineNr">341 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> address s
+<span id="L342" class="LineNr">342 </span>  <span class="muComment"># surface contents are a fixed grid with 8 rows and 6 columns</span>
+<span id="L343" class="LineNr">343 </span>  <span class="muComment"># (strip vowels second time around to break vertical alignment of letters)</span>
+<span id="L344" class="LineNr">344 </span>  <a href='surface.mu.html#L408'>initialize-surface-with-fake-screen</a> s-addr, <span class="Constant">3</span>, <span class="Constant">4</span>, <span class="Constant">&quot;abcdef\nghijkl\nmnopqr\nstuvwx\nyzabcd\nfghjkl\nmnpqrs\ntvwxyz&quot;</span>
+<span id="L345" class="LineNr">345 </span>  <a href='surface.mu.html#L53'>pin-surface-at</a> s-addr, <span class="Constant">1</span>, <span class="Constant">1</span>  <span class="muComment"># surface row and column</span>
+<span id="L346" class="LineNr">346 </span>  <a href='surface.mu.html#L63'>pin-surface-to</a> s-addr, <span class="Constant">2</span>, <span class="Constant">1</span>  <span class="muComment"># screen row and column</span>
+<span id="L347" class="LineNr">347 </span>  <a href='surface.mu.html#L73'>render-surface</a> s-addr
+<span id="L348" class="LineNr">348 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> s-addr, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L349" class="LineNr">349 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L350" class="LineNr">350 </span>  <span class="muComment"># surface edge reached (should seldom happen in the app)</span>
+<span id="L351" class="LineNr">351 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">1</span>, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-surface-pin-2&quot;</span>
+<span id="L352" class="LineNr">352 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">2</span>, <span class="Constant">&quot;abcd&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-2&quot;</span>
+<span id="L353" class="LineNr">353 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">3</span>, <span class="Constant">&quot;ghij&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-2&quot;</span>
+<span id="L354" class="LineNr">354 </span><span class="Delimiter">}</span>
+<span id="L355" class="LineNr">355 </span>
+<span id="L356" class="LineNr">356 </span><span class="muComment"># pin (2, 1) to (1, 1) on screen</span>
+<span id="L357" class="LineNr">357 </span><span class="PreProc">fn</span> <span class="muTest"><a href='surface.mu.html#L357'>test-surface-pin-3</a></span> <span class="Delimiter">{</span>
+<span id="L358" class="LineNr">358 </span>  <span class="PreProc">var</span> s: <a href='surface.mu.html#L7'>surface</a>
+<span id="L359" class="LineNr">359 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> address s
+<span id="L360" class="LineNr">360 </span>  <span class="muComment"># surface contents are a fixed grid with 8 rows and 6 columns</span>
+<span id="L361" class="LineNr">361 </span>  <span class="muComment"># (strip vowels second time around to break vertical alignment of letters)</span>
+<span id="L362" class="LineNr">362 </span>  <a href='surface.mu.html#L408'>initialize-surface-with-fake-screen</a> s-addr, <span class="Constant">3</span>, <span class="Constant">4</span>, <span class="Constant">&quot;abcdef\nghijkl\nmnopqr\nstuvwx\nyzabcd\nfghjkl\nmnpqrs\ntvwxyz&quot;</span>
+<span id="L363" class="LineNr">363 </span>  <a href='surface.mu.html#L53'>pin-surface-at</a> s-addr, <span class="Constant">2</span>, <span class="Constant">1</span>  <span class="muComment"># surface row and column</span>
+<span id="L364" class="LineNr">364 </span>  <a href='surface.mu.html#L63'>pin-surface-to</a> s-addr, <span class="Constant">1</span>, <span class="Constant">1</span>  <span class="muComment"># screen row and column</span>
+<span id="L365" class="LineNr">365 </span>  <a href='surface.mu.html#L73'>render-surface</a> s-addr
+<span id="L366" class="LineNr">366 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> s-addr, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L367" class="LineNr">367 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L368" class="LineNr">368 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">1</span>, <span class="Constant">&quot;ghij&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-3&quot;</span>
+<span id="L369" class="LineNr">369 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">2</span>, <span class="Constant">&quot;mnop&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-3&quot;</span>
+<span id="L370" class="LineNr">370 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">3</span>, <span class="Constant">&quot;stuv&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-3&quot;</span>
+<span id="L371" class="LineNr">371 </span><span class="Delimiter">}</span>
+<span id="L372" class="LineNr">372 </span>
+<span id="L373" class="LineNr">373 </span><span class="muComment"># pin (1, 1) to (1, 2) on screen; screen goes past edge of the universe</span>
+<span id="L374" class="LineNr">374 </span><span class="PreProc">fn</span> <span class="muTest"><a href='surface.mu.html#L374'>test-surface-pin-4</a></span> <span class="Delimiter">{</span>
+<span id="L375" class="LineNr">375 </span>  <span class="PreProc">var</span> s: <a href='surface.mu.html#L7'>surface</a>
+<span id="L376" class="LineNr">376 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> address s
+<span id="L377" class="LineNr">377 </span>  <span class="muComment"># surface contents are a fixed grid with 8 rows and 6 columns</span>
+<span id="L378" class="LineNr">378 </span>  <span class="muComment"># (strip vowels second time around to break vertical alignment of letters)</span>
+<span id="L379" class="LineNr">379 </span>  <a href='surface.mu.html#L408'>initialize-surface-with-fake-screen</a> s-addr, <span class="Constant">3</span>, <span class="Constant">4</span>, <span class="Constant">&quot;abcdef\nghijkl\nmnopqr\nstuvwx\nyzabcd\nfghjkl\nmnpqrs\ntvwxyz&quot;</span>
+<span id="L380" class="LineNr">380 </span>  <a href='surface.mu.html#L53'>pin-surface-at</a> s-addr, <span class="Constant">1</span>, <span class="Constant">1</span>  <span class="muComment"># surface row and column</span>
+<span id="L381" class="LineNr">381 </span>  <a href='surface.mu.html#L63'>pin-surface-to</a> s-addr, <span class="Constant">1</span>, <span class="Constant">2</span>  <span class="muComment"># screen row and column</span>
+<span id="L382" class="LineNr">382 </span>  <a href='surface.mu.html#L73'>render-surface</a> s-addr
+<span id="L383" class="LineNr">383 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> s-addr, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L384" class="LineNr">384 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L385" class="LineNr">385 </span>  <span class="muComment"># surface edge reached (should seldom happen in the app)</span>
+<span id="L386" class="LineNr">386 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">1</span>, <span class="Constant">&quot; abc&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-4&quot;</span>
+<span id="L387" class="LineNr">387 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">2</span>, <span class="Constant">&quot; ghi&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-4&quot;</span>
+<span id="L388" class="LineNr">388 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">3</span>, <span class="Constant">&quot; mno&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-4&quot;</span>
+<span id="L389" class="LineNr">389 </span><span class="Delimiter">}</span>
+<span id="L390" class="LineNr">390 </span>
+<span id="L391" class="LineNr">391 </span><span class="muComment"># pin (1, 2) to (1, 1) on screen</span>
+<span id="L392" class="LineNr">392 </span><span class="PreProc">fn</span> <span class="muTest"><a href='surface.mu.html#L392'>test-surface-pin-5</a></span> <span class="Delimiter">{</span>
+<span id="L393" class="LineNr">393 </span>  <span class="PreProc">var</span> s: <a href='surface.mu.html#L7'>surface</a>
+<span id="L394" class="LineNr">394 </span>  <span class="PreProc">var</span> s-addr/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> address s
+<span id="L395" class="LineNr">395 </span>  <span class="muComment"># surface contents are a fixed grid with 8 rows and 6 columns</span>
+<span id="L396" class="LineNr">396 </span>  <span class="muComment"># (strip vowels second time around to break vertical alignment of letters)</span>
+<span id="L397" class="LineNr">397 </span>  <a href='surface.mu.html#L408'>initialize-surface-with-fake-screen</a> s-addr, <span class="Constant">3</span>, <span class="Constant">4</span>, <span class="Constant">&quot;abcdef\nghijkl\nmnopqr\nstuvwx\nyzabcd\nfghjkl\nmnpqrs\ntvwxyz&quot;</span>
+<span id="L398" class="LineNr">398 </span>  <a href='surface.mu.html#L53'>pin-surface-at</a> s-addr, <span class="Constant">1</span>, <span class="Constant">2</span>  <span class="muComment"># surface row and column</span>
+<span id="L399" class="LineNr">399 </span>  <a href='surface.mu.html#L63'>pin-surface-to</a> s-addr, <span class="Constant">1</span>, <span class="Constant">1</span>  <span class="muComment"># screen row and column</span>
+<span id="L400" class="LineNr">400 </span>  <a href='surface.mu.html#L73'>render-surface</a> s-addr
+<span id="L401" class="LineNr">401 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> s-addr, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L402" class="LineNr">402 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L403" class="LineNr">403 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">1</span>, <span class="Constant">&quot;bcde&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-5&quot;</span>
+<span id="L404" class="LineNr">404 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">2</span>, <span class="Constant">&quot;hijk&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-5&quot;</span>
+<span id="L405" class="LineNr">405 </span>  <a href='../../405screen.mu.html#L657'>check-screen-row</a> screen-addr, <span class="Constant">3</span>, <span class="Constant">&quot;nopq&quot;</span>, <span class="Constant">&quot;F - test-surface-pin-5&quot;</span>
+<span id="L406" class="LineNr">406 </span><span class="Delimiter">}</span>
+<span id="L407" class="LineNr">407 </span>
+<span id="L408" class="LineNr">408 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='surface.mu.html#L408'>initialize-surface-with-fake-screen</a></span> _self: (addr <a href='surface.mu.html#L7'>surface</a>), nrows: int, ncols: int, in: (addr array byte) <span class="Delimiter">{</span>
+<span id="L409" class="LineNr">409 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='surface.mu.html#L7'>surface</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L410" class="LineNr">410 </span>  <span class="muComment"># fill in screen</span>
+<span id="L411" class="LineNr">411 </span>  <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
+<span id="L412" class="LineNr">412 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> screen-ah
+<span id="L413" class="LineNr">413 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
+<span id="L414" class="LineNr">414 </span>  <a href='../../405screen.mu.html#L30'>initialize-screen</a> screen-addr, nrows, ncols
+<span id="L415" class="LineNr">415 </span>  <span class="muComment"># fill in everything else</span>
+<span id="L416" class="LineNr">416 </span>  <a href='surface.mu.html#L21'>initialize-surface-with</a> self, in
+<span id="L417" class="LineNr">417 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/table.mu.html b/html/apps/tile/table.mu.html
new file mode 100644
index 00000000..03404d27
--- /dev/null
+++ b/html/apps/tile/table.mu.html
@@ -0,0 +1,141 @@
+<!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 - apps/tile/table.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/table.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/table.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='table.mu.html#L1'>initialize-table</a></span> _self: (addr table), n: int <span class="Delimiter">{</span>
+<span id="L2" class="LineNr"> 2 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr table) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L3" class="LineNr"> 3 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array bind) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L4" class="LineNr"> 4 </span>  populate data-ah, n
+<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">}</span>
+<span id="L6" class="LineNr"> 6 </span>
+<span id="L7" class="LineNr"> 7 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='table.mu.html#L7'>bind-int-in-table</a></span> _self: (addr table), key: (addr handle array byte), val: int <span class="Delimiter">{</span>
+<span id="L8" class="LineNr"> 8 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr table) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L9" class="LineNr"> 9 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">esi</span>: (addr handle array bind) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L10" class="LineNr">10 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array bind) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L11" class="LineNr">11 </span>  <span class="PreProc">var</span> data/<span class="Constant">esi</span>: (addr array bind) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L12" class="LineNr">12 </span>  <span class="PreProc">var</span> next-empty-slot-index/<span class="Constant">eax</span>: (offset bind) <span class="SpecialChar">&lt;-</span> <a href='table.mu.html#L18'>next-empty-slot</a> data, key
+<span id="L13" class="LineNr">13 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr bind) <span class="SpecialChar">&lt;-</span> index data, next-empty-slot-index
+<span id="L14" class="LineNr">14 </span>  <a href='table.mu.html#L39'>make-binding</a> dest, key, val
+<span id="L15" class="LineNr">15 </span><span class="Delimiter">}</span>
+<span id="L16" class="LineNr">16 </span>
+<span id="L17" class="LineNr">17 </span><span class="muComment"># manual test: full array of binds</span>
+<span id="L18" class="LineNr">18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='table.mu.html#L18'>next-empty-slot</a></span> _data: (addr array bind), key: (addr handle array byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: (offset bind) <span class="Delimiter">{</span>
+<span id="L19" class="LineNr">19 </span>  <span class="PreProc">var</span> data/<span class="Constant">esi</span>: (addr array bind) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L20" class="LineNr">20 </span>  <span class="PreProc">var</span> len/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> length data
+<span id="L21" class="LineNr">21 </span>  <span class="PreProc">var</span> i/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L22" class="LineNr">22 </span>  $next-empty-slot:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L23" class="LineNr">23 </span>    result <span class="SpecialChar">&lt;-</span> compute-offset data, i
+<span id="L24" class="LineNr">24 </span>    compare i, len
+<span id="L25" class="LineNr">25 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L26" class="LineNr">26 </span>    <span class="Delimiter">{</span>
+<span id="L27" class="LineNr">27 </span>      <span class="PreProc">var</span> target/<span class="Constant">esi</span>: (addr bind) <span class="SpecialChar">&lt;-</span> index data, result
+<span id="L28" class="LineNr">28 </span>      <span class="PreProc">var</span> target2/<span class="Constant">esi</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> target, key
+<span id="L29" class="LineNr">29 </span>      <span class="PreProc">var</span> target3/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *target2
+<span id="L30" class="LineNr">30 </span>      compare target3, <span class="Constant">0</span>
+<span id="L31" class="LineNr">31 </span>      <span class="PreProc">break-if-=</span> $next-empty-slot:<span class="PreProc">loop</span>
+<span id="L32" class="LineNr">32 </span>      <span class="muComment"># TODO: how to indicate that key already exists? we don't want to permit rebinding</span>
+<span id="L33" class="LineNr">33 </span>    <span class="Delimiter">}</span>
+<span id="L34" class="LineNr">34 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L35" class="LineNr">35 </span>    <span class="PreProc">loop</span>
+<span id="L36" class="LineNr">36 </span>  <span class="Delimiter">}</span>
+<span id="L37" class="LineNr">37 </span><span class="Delimiter">}</span>
+<span id="L38" class="LineNr">38 </span>
+<span id="L39" class="LineNr">39 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='table.mu.html#L39'>make-binding</a></span> _self: (addr bind), key: (addr handle array byte), _val: int <span class="Delimiter">{</span>
+<span id="L40" class="LineNr">40 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr bind) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L41" class="LineNr">41 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, key
+<span id="L42" class="LineNr">42 </span>  copy-object key, dest
+<span id="L43" class="LineNr">43 </span>  <span class="PreProc">var</span> dest2/<span class="Constant">eax</span>: (addr handle value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, value
+<span id="L44" class="LineNr">44 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> dest2
+<span id="L45" class="LineNr">45 </span>  <span class="PreProc">var</span> dest3/<span class="Constant">eax</span>: (addr value) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *dest2
+<span id="L46" class="LineNr">46 </span>  <span class="PreProc">var</span> dest4/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> dest3, scalar-data
+<span id="L47" class="LineNr">47 </span>  <span class="PreProc">var</span> val/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy _val
+<span id="L48" class="LineNr">48 </span>  copy-to *dest4, val
+<span id="L49" class="LineNr">49 </span><span class="Delimiter">}</span>
+<span id="L50" class="LineNr">50 </span>
+<span id="L51" class="LineNr">51 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='table.mu.html#L51'>lookup-binding</a></span> _self: (addr table), key: (addr array byte), out: (addr handle value) <span class="Delimiter">{</span>
+<span id="L52" class="LineNr">52 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr table) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L53" class="LineNr">53 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">esi</span>: (addr handle array bind) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L54" class="LineNr">54 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array bind) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L55" class="LineNr">55 </span>  <span class="PreProc">var</span> data/<span class="Constant">esi</span>: (addr array bind) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L56" class="LineNr">56 </span>  <span class="PreProc">var</span> len/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> length data
+<span id="L57" class="LineNr">57 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L58" class="LineNr">58 </span>  $lookup-binding:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L59" class="LineNr">59 </span>    compare i, len
+<span id="L60" class="LineNr">60 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L61" class="LineNr">61 </span>    <span class="Delimiter">{</span>
+<span id="L62" class="LineNr">62 </span>      <span class="PreProc">var</span> offset/<span class="Constant">edx</span>: (offset bind) <span class="SpecialChar">&lt;-</span> compute-offset data, i
+<span id="L63" class="LineNr">63 </span>      <span class="PreProc">var</span> target-bind/<span class="Constant">esi</span>: (addr bind) <span class="SpecialChar">&lt;-</span> index data, offset
+<span id="L64" class="LineNr">64 </span>      <span class="PreProc">var</span> target2/<span class="Constant">edx</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> target-bind, key
+<span id="L65" class="LineNr">65 </span>      <span class="PreProc">var</span> target3/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *target2
+<span id="L66" class="LineNr">66 </span>      compare target3, <span class="Constant">0</span>
+<span id="L67" class="LineNr">67 </span>      <span class="PreProc">break-if-=</span> $lookup-binding:<span class="PreProc">loop</span>
+<span id="L68" class="LineNr">68 </span>      <span class="PreProc">var</span> is-match?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> target3, key
+<span id="L69" class="LineNr">69 </span>      compare is-match?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L70" class="LineNr">70 </span>      <span class="PreProc">break-if-=</span>
+<span id="L71" class="LineNr">71 </span>      <span class="muComment"># found</span>
+<span id="L72" class="LineNr">72 </span>      <span class="PreProc">var</span> target/<span class="Constant">eax</span>: (addr handle value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> target-bind, value
+<span id="L73" class="LineNr">73 </span>      copy-object target, out
+<span id="L74" class="LineNr">74 </span>      <span class="PreProc">break</span> $lookup-binding:<span class="PreProc">loop</span>
+<span id="L75" class="LineNr">75 </span>    <span class="Delimiter">}</span>
+<span id="L76" class="LineNr">76 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L77" class="LineNr">77 </span>    <span class="PreProc">loop</span>
+<span id="L78" class="LineNr">78 </span>  <span class="Delimiter">}</span>
+<span id="L79" class="LineNr">79 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/value-stack.mu.html b/html/apps/tile/value-stack.mu.html
new file mode 100644
index 00000000..86117bed
--- /dev/null
+++ b/html/apps/tile/value-stack.mu.html
@@ -0,0 +1,176 @@
+<!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 - apps/tile/value-stack.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.CommentedCode { color: #8a8a8a; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/value-stack.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/value-stack.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># support for non-int values is untested</span>
+<span id="L2" class="LineNr">  2 </span>
+<span id="L3" class="LineNr">  3 </span><span class="PreProc">type</span> <a href='value-stack.mu.html#L3'>value-stack</a> <span class="Delimiter">{</span>
+<span id="L4" class="LineNr">  4 </span>  data: (handle array value)
+<span id="L5" class="LineNr">  5 </span>  <a href='../../203stack.subx.html#L338'>top</a>: int
+<span id="L6" class="LineNr">  6 </span><span class="Delimiter">}</span>
+<span id="L7" class="LineNr">  7 </span>
+<span id="L8" class="LineNr">  8 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L8'>initialize-value-stack</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>), n: int <span class="Delimiter">{</span>
+<span id="L9" class="LineNr">  9 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L10" class="LineNr"> 10 </span>  <span class="PreProc">var</span> d/<span class="Constant">edi</span>: (addr handle array value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L11" class="LineNr"> 11 </span>  populate d, n
+<span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L13" class="LineNr"> 13 </span>  copy-to *top, <span class="Constant">0</span>
+<span id="L14" class="LineNr"> 14 </span><span class="Delimiter">}</span>
+<span id="L15" class="LineNr"> 15 </span>
+<span id="L16" class="LineNr"> 16 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L16'>clear-value-stack</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="Delimiter">{</span>
+<span id="L17" class="LineNr"> 17 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L19" class="LineNr"> 19 </span>  copy-to *top, <span class="Constant">0</span>
+<span id="L20" class="LineNr"> 20 </span><span class="Delimiter">}</span>
+<span id="L21" class="LineNr"> 21 </span>
+<span id="L22" class="LineNr"> 22 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L22'>push-int-to-value-stack</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>), _val: int <span class="Delimiter">{</span>
+<span id="L23" class="LineNr"> 23 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L24" class="LineNr"> 24 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L25" class="LineNr"> 25 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L26" class="LineNr"> 26 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array value) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L27" class="LineNr"> 27 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L28" class="LineNr"> 28 </span>  <span class="PreProc">var</span> dest-offset/<span class="Constant">edx</span>: (offset value) <span class="SpecialChar">&lt;-</span> compute-offset data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L29" class="LineNr"> 29 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr value) <span class="SpecialChar">&lt;-</span> index data, dest-offset
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">var</span> dest-addr2/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> dest-addr, scalar-data
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> val/<span class="Constant">esi</span>: int <span class="SpecialChar">&lt;-</span> copy _val
+<span id="L32" class="LineNr"> 32 </span><span class="CommentedCode">#?   print-int32-hex-to-real-screen val</span>
+<span id="L33" class="LineNr"> 33 </span>  copy-to *dest-addr2, val
+<span id="L34" class="LineNr"> 34 </span>  increment *top-addr
+<span id="L35" class="LineNr"> 35 </span><span class="Delimiter">}</span>
+<span id="L36" class="LineNr"> 36 </span>
+<span id="L37" class="LineNr"> 37 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L37'>push-value-stack</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>), val: (addr value) <span class="Delimiter">{</span>
+<span id="L38" class="LineNr"> 38 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L39" class="LineNr"> 39 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L41" class="LineNr"> 41 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array value) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> dest-offset/<span class="Constant">edx</span>: (offset value) <span class="SpecialChar">&lt;-</span> compute-offset data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L44" class="LineNr"> 44 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr value) <span class="SpecialChar">&lt;-</span> index data, dest-offset
+<span id="L45" class="LineNr"> 45 </span>  copy-object val, dest-addr
+<span id="L46" class="LineNr"> 46 </span>  increment *top-addr
+<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span>
+<span id="L48" class="LineNr"> 48 </span>
+<span id="L49" class="LineNr"> 49 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L49'>pop-int-from-value-stack</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>)<span class="PreProc"> -&gt; </span>val/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L50" class="LineNr"> 50 </span>$pop-int-from-value-stack:body: <span class="Delimiter">{</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L53" class="LineNr"> 53 </span>  <span class="Delimiter">{</span>
+<span id="L54" class="LineNr"> 54 </span>    compare *top-addr, <span class="Constant">0</span>
+<span id="L55" class="LineNr"> 55 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L56" class="LineNr"> 56 </span>    val <span class="SpecialChar">&lt;-</span> copy <span class="Constant">-1</span>
+<span id="L57" class="LineNr"> 57 </span>    <span class="PreProc">break</span> $pop-int-from-value-stack:body
+<span id="L58" class="LineNr"> 58 </span>  <span class="Delimiter">}</span>
+<span id="L59" class="LineNr"> 59 </span>  decrement *top-addr
+<span id="L60" class="LineNr"> 60 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L61" class="LineNr"> 61 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array value) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L62" class="LineNr"> 62 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> dest-offset/<span class="Constant">edx</span>: (offset value) <span class="SpecialChar">&lt;-</span> compute-offset data, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr value) <span class="SpecialChar">&lt;-</span> index data, dest-offset
+<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> result-addr2/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> result-addr, scalar-data
+<span id="L66" class="LineNr"> 66 </span>  val <span class="SpecialChar">&lt;-</span> copy *result-addr2
+<span id="L67" class="LineNr"> 67 </span><span class="Delimiter">}</span>
+<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span>
+<span id="L69" class="LineNr"> 69 </span>
+<span id="L70" class="LineNr"> 70 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L70'>value-stack-empty?</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L71" class="LineNr"> 71 </span>$value-stack-empty?:body: <span class="Delimiter">{</span>
+<span id="L72" class="LineNr"> 72 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L73" class="LineNr"> 73 </span>  <span class="PreProc">var</span> <a href='../../203stack.subx.html#L338'>top</a>/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L74" class="LineNr"> 74 </span>  compare *top, <span class="Constant">0</span>
+<span id="L75" class="LineNr"> 75 </span>  <span class="Delimiter">{</span>
+<span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L77" class="LineNr"> 77 </span>    result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>  <span class="muComment"># true</span>
+<span id="L78" class="LineNr"> 78 </span>    <span class="PreProc">break</span> $value-stack-empty?:body
+<span id="L79" class="LineNr"> 79 </span>  <span class="Delimiter">}</span>
+<span id="L80" class="LineNr"> 80 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L81" class="LineNr"> 81 </span><span class="Delimiter">}</span>
+<span id="L82" class="LineNr"> 82 </span><span class="Delimiter">}</span>
+<span id="L83" class="LineNr"> 83 </span>
+<span id="L84" class="LineNr"> 84 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L84'>value-stack-length</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L87" class="LineNr"> 87 </span>  result <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">}</span>
+<span id="L89" class="LineNr"> 89 </span>
+<span id="L90" class="LineNr"> 90 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='value-stack.mu.html#L90'>value-stack-max-width</a></span> _self: (addr <a href='value-stack.mu.html#L3'>value-stack</a>)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L91" class="LineNr"> 91 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array value) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, data
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array value) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array value) <span class="SpecialChar">&lt;-</span> copy _data
+<span id="L95" class="LineNr"> 95 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../203stack.subx.html#L338'>top</a>
+<span id="L96" class="LineNr"> 96 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L97" class="LineNr"> 97 </span>  result <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="Delimiter">{</span>
+<span id="L99" class="LineNr"> 99 </span>    compare i, *top-addr
+<span id="L100" class="LineNr">100 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L101" class="LineNr">101 </span>    <span class="PreProc">var</span> o/<span class="Constant">edx</span>: (offset value) <span class="SpecialChar">&lt;-</span> compute-offset data, i
+<span id="L102" class="LineNr">102 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr value) <span class="SpecialChar">&lt;-</span> index data, o
+<span id="L103" class="LineNr">103 </span>    <span class="PreProc">var</span> g2/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> g, scalar-data
+<span id="L104" class="LineNr">104 </span>    <span class="PreProc">var</span> w/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='../../407print-int32-decimal-right-justified.mu.html#L16'>int-width-decimal</a> *g2
+<span id="L105" class="LineNr">105 </span>    compare w, result
+<span id="L106" class="LineNr">106 </span>    <span class="Delimiter">{</span>
+<span id="L107" class="LineNr">107 </span>      <span class="PreProc">break-if-&lt;=</span>
+<span id="L108" class="LineNr">108 </span>      result <span class="SpecialChar">&lt;-</span> copy w
+<span id="L109" class="LineNr">109 </span>    <span class="Delimiter">}</span>
+<span id="L110" class="LineNr">110 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L111" class="LineNr">111 </span>    <span class="PreProc">loop</span>
+<span id="L112" class="LineNr">112 </span>  <span class="Delimiter">}</span>
+<span id="L113" class="LineNr">113 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/apps/tile/word.mu.html b/html/apps/tile/word.mu.html
new file mode 100644
index 00000000..2b93eff1
--- /dev/null
+++ b/html/apps/tile/word.mu.html
@@ -0,0 +1,296 @@
+<!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 - apps/tile/word.mu</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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; 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; }
+.muComment { color: #005faf; }
+.LineNr { }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+.PreProc { color: #c000c0; }
+-->
+</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/apps/tile/word.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/word.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L1'>initialize-word</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L3" class="LineNr">  3 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L4" class="LineNr">  4 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> data-ah
+<span id="L5" class="LineNr">  5 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L6" class="LineNr">  6 </span>  initialize-gap-buffer data
+<span id="L7" class="LineNr">  7 </span>  <span class="muComment"># TODO: sometimes initialize box-data rather than scalar-data</span>
+<span id="L8" class="LineNr">  8 </span><span class="Delimiter">}</span>
+<span id="L9" class="LineNr">  9 </span>
+<span id="L10" class="LineNr"> 10 </span><span class="muComment">## some helpers for creating words. mostly for tests</span>
+<span id="L11" class="LineNr"> 11 </span>
+<span id="L12" class="LineNr"> 12 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L12'>initialize-word-with</a></span> _self: (addr word), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L13" class="LineNr"> 13 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L14" class="LineNr"> 14 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L15" class="LineNr"> 15 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> data-ah
+<span id="L16" class="LineNr"> 16 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L17" class="LineNr"> 17 </span>  initialize-gap-buffer-with data, s
+<span id="L18" class="LineNr"> 18 </span><span class="Delimiter">}</span>
+<span id="L19" class="LineNr"> 19 </span>
+<span id="L20" class="LineNr"> 20 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L20'>allocate-word-with</a></span> _out: (addr handle word), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L21" class="LineNr"> 21 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> copy _out
+<span id="L22" class="LineNr"> 22 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> out
+<span id="L23" class="LineNr"> 23 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *out
+<span id="L24" class="LineNr"> 24 </span>  <a href='word.mu.html#L12'>initialize-word-with</a> out-addr, s
+<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">}</span>
+<span id="L26" class="LineNr"> 26 </span>
+<span id="L27" class="LineNr"> 27 </span><span class="muComment"># just for tests for now</span>
+<span id="L28" class="LineNr"> 28 </span><span class="muComment"># TODO: handle existing next</span>
+<span id="L29" class="LineNr"> 29 </span><span class="muComment"># one implication of handles: append must take a handle</span>
+<span id="L30" class="LineNr"> 30 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L30'>append-word-with</a></span> self-h: (handle word), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> self-h
+<span id="L32" class="LineNr"> 32 </span>  <span class="PreProc">var</span> next-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, next
+<span id="L33" class="LineNr"> 33 </span>  <a href='word.mu.html#L20'>allocate-word-with</a> next-ah, s
+<span id="L34" class="LineNr"> 34 </span>  <span class="PreProc">var</span> next/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-ah
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> prev-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> next, prev
+<span id="L36" class="LineNr"> 36 </span>  <a href='../../120allocate.subx.html#L489'>copy-handle</a> self-h, prev-ah
+<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">}</span>
+<span id="L38" class="LineNr"> 38 </span>
+<span id="L39" class="LineNr"> 39 </span><span class="muComment"># just for tests for now</span>
+<span id="L40" class="LineNr"> 40 </span><span class="muComment"># TODO: handle existing prev</span>
+<span id="L41" class="LineNr"> 41 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L41'>prepend-word-with</a></span> self-h: (handle word), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> self-h
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> prev-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, prev
+<span id="L44" class="LineNr"> 44 </span>  <a href='word.mu.html#L20'>allocate-word-with</a> prev-ah, s
+<span id="L45" class="LineNr"> 45 </span>  <span class="PreProc">var</span> prev/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-ah
+<span id="L46" class="LineNr"> 46 </span>  <span class="PreProc">var</span> next-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> prev, next
+<span id="L47" class="LineNr"> 47 </span>  <a href='../../120allocate.subx.html#L489'>copy-handle</a> self-h, next-ah
+<span id="L48" class="LineNr"> 48 </span><span class="Delimiter">}</span>
+<span id="L49" class="LineNr"> 49 </span>
+<span id="L50" class="LineNr"> 50 </span><span class="muComment">## real primitives</span>
+<span id="L51" class="LineNr"> 51 </span>
+<span id="L52" class="LineNr"> 52 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L52'>word-equal?</a></span> _self: (addr word), s: (addr array byte)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L53" class="LineNr"> 53 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L54" class="LineNr"> 54 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L55" class="LineNr"> 55 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L56" class="LineNr"> 56 </span>  result <span class="SpecialChar">&lt;-</span> gap-buffer-equal? data, s
+<span id="L57" class="LineNr"> 57 </span><span class="Delimiter">}</span>
+<span id="L58" class="LineNr"> 58 </span>
+<span id="L59" class="LineNr"> 59 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L59'>word-length</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L60" class="LineNr"> 60 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L61" class="LineNr"> 61 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L62" class="LineNr"> 62 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L63" class="LineNr"> 63 </span>  result <span class="SpecialChar">&lt;-</span> gap-buffer-length data
+<span id="L64" class="LineNr"> 64 </span><span class="Delimiter">}</span>
+<span id="L65" class="LineNr"> 65 </span>
+<span id="L66" class="LineNr"> 66 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L66'>first-word</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: (addr word) <span class="Delimiter">{</span>
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy self
+<span id="L69" class="LineNr"> 69 </span>  <span class="PreProc">var</span> prev/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, prev
+<span id="L70" class="LineNr"> 70 </span>  <span class="Delimiter">{</span>
+<span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev
+<span id="L72" class="LineNr"> 72 </span>    compare curr, <span class="Constant">0</span>
+<span id="L73" class="LineNr"> 73 </span>    <span class="PreProc">break-if-=</span>
+<span id="L74" class="LineNr"> 74 </span>    out <span class="SpecialChar">&lt;-</span> copy curr
+<span id="L75" class="LineNr"> 75 </span>    prev <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr, prev
+<span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">loop</span>
+<span id="L77" class="LineNr"> 77 </span>  <span class="Delimiter">}</span>
+<span id="L78" class="LineNr"> 78 </span>  result <span class="SpecialChar">&lt;-</span> copy out
+<span id="L79" class="LineNr"> 79 </span><span class="Delimiter">}</span>
+<span id="L80" class="LineNr"> 80 </span>
+<span id="L81" class="LineNr"> 81 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L81'>final-word</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: (addr word) <span class="Delimiter">{</span>
+<span id="L82" class="LineNr"> 82 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy self
+<span id="L84" class="LineNr"> 84 </span>  <span class="PreProc">var</span> next/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, next
+<span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">{</span>
+<span id="L86" class="LineNr"> 86 </span>    <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next
+<span id="L87" class="LineNr"> 87 </span>    compare curr, <span class="Constant">0</span>
+<span id="L88" class="LineNr"> 88 </span>    <span class="PreProc">break-if-=</span>
+<span id="L89" class="LineNr"> 89 </span>    out <span class="SpecialChar">&lt;-</span> copy curr
+<span id="L90" class="LineNr"> 90 </span>    next <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> curr, next
+<span id="L91" class="LineNr"> 91 </span>    <span class="PreProc">loop</span>
+<span id="L92" class="LineNr"> 92 </span>  <span class="Delimiter">}</span>
+<span id="L93" class="LineNr"> 93 </span>  result <span class="SpecialChar">&lt;-</span> copy out
+<span id="L94" class="LineNr"> 94 </span><span class="Delimiter">}</span>
+<span id="L95" class="LineNr"> 95 </span>
+<span id="L96" class="LineNr"> 96 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L96'>first-grapheme</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L97" class="LineNr"> 97 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L98" class="LineNr"> 98 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L99" class="LineNr"> 99 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L100" class="LineNr">100 </span>  result <span class="SpecialChar">&lt;-</span> first-grapheme-in-gap-buffer data
+<span id="L101" class="LineNr">101 </span><span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </span>
+<span id="L103" class="LineNr">103 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L103'>add-grapheme-to-word</a></span> _self: (addr word), c: grapheme <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L106" class="LineNr">106 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L107" class="LineNr">107 </span>  add-grapheme-at-gap data, c
+<span id="L108" class="LineNr">108 </span><span class="Delimiter">}</span>
+<span id="L109" class="LineNr">109 </span>
+<span id="L110" class="LineNr">110 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L110'>cursor-at-start?</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L111" class="LineNr">111 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L112" class="LineNr">112 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L114" class="LineNr">114 </span>  result <span class="SpecialChar">&lt;-</span> gap-at-start? data
+<span id="L115" class="LineNr">115 </span><span class="Delimiter">}</span>
+<span id="L116" class="LineNr">116 </span>
+<span id="L117" class="LineNr">117 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L117'>cursor-at-end?</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L118" class="LineNr">118 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L119" class="LineNr">119 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L120" class="LineNr">120 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L121" class="LineNr">121 </span>  result <span class="SpecialChar">&lt;-</span> gap-at-end? data
+<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span>
+<span id="L123" class="LineNr">123 </span>
+<span id="L124" class="LineNr">124 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L124'>cursor-left</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> gap-left data
+<span id="L129" class="LineNr">129 </span><span class="Delimiter">}</span>
+<span id="L130" class="LineNr">130 </span>
+<span id="L131" class="LineNr">131 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L131'>cursor-right</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L133" class="LineNr">133 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L135" class="LineNr">135 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> gap-right data
+<span id="L136" class="LineNr">136 </span><span class="Delimiter">}</span>
+<span id="L137" class="LineNr">137 </span>
+<span id="L138" class="LineNr">138 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L138'>cursor-to-start</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L139" class="LineNr">139 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L140" class="LineNr">140 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L141" class="LineNr">141 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L142" class="LineNr">142 </span>  gap-to-start data
+<span id="L143" class="LineNr">143 </span><span class="Delimiter">}</span>
+<span id="L144" class="LineNr">144 </span>
+<span id="L145" class="LineNr">145 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L145'>cursor-to-end</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L146" class="LineNr">146 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L147" class="LineNr">147 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L148" class="LineNr">148 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L149" class="LineNr">149 </span>  gap-to-end data
+<span id="L150" class="LineNr">150 </span><span class="Delimiter">}</span>
+<span id="L151" class="LineNr">151 </span>
+<span id="L152" class="LineNr">152 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L152'>cursor-index</a></span> _self: (addr word)<span class="PreProc"> -&gt; </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L153" class="LineNr">153 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L154" class="LineNr">154 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L155" class="LineNr">155 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L156" class="LineNr">156 </span>  result <span class="SpecialChar">&lt;-</span> gap-index data
+<span id="L157" class="LineNr">157 </span><span class="Delimiter">}</span>
+<span id="L158" class="LineNr">158 </span>
+<span id="L159" class="LineNr">159 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L159'>delete-before-cursor</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L160" class="LineNr">160 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L162" class="LineNr">162 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L163" class="LineNr">163 </span>  delete-before-gap data
+<span id="L164" class="LineNr">164 </span><span class="Delimiter">}</span>
+<span id="L165" class="LineNr">165 </span>
+<span id="L166" class="LineNr">166 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L166'>delete-next</a></span> _self: (addr word) <span class="Delimiter">{</span>
+<span id="L167" class="LineNr">167 </span>$delete-next:body: <span class="Delimiter">{</span>
+<span id="L168" class="LineNr">168 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L169" class="LineNr">169 </span>  <span class="PreProc">var</span> next-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, next
+<span id="L170" class="LineNr">170 </span>  <span class="PreProc">var</span> next/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-ah
+<span id="L171" class="LineNr">171 </span>  compare next, <span class="Constant">0</span>
+<span id="L172" class="LineNr">172 </span>  <span class="PreProc">break-if-=</span> $delete-next:body
+<span id="L173" class="LineNr">173 </span>  <span class="PreProc">var</span> next-next-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> next, next
+<span id="L174" class="LineNr">174 </span>  <span class="PreProc">var</span> self-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> next, prev
+<span id="L175" class="LineNr">175 </span>  copy-object next-next-ah, next-ah
+<span id="L176" class="LineNr">176 </span>  <span class="PreProc">var</span> new-next/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-next-ah
+<span id="L177" class="LineNr">177 </span>  compare new-next, <span class="Constant">0</span>
+<span id="L178" class="LineNr">178 </span>  <span class="PreProc">break-if-=</span> $delete-next:body
+<span id="L179" class="LineNr">179 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> new-next, prev
+<span id="L180" class="LineNr">180 </span>  copy-object self-ah, dest
+<span id="L181" class="LineNr">181 </span><span class="Delimiter">}</span>
+<span id="L182" class="LineNr">182 </span><span class="Delimiter">}</span>
+<span id="L183" class="LineNr">183 </span>
+<span id="L184" class="LineNr">184 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L184'>print-word</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), _self: (addr word) <span class="Delimiter">{</span>
+<span id="L185" class="LineNr">185 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L186" class="LineNr">186 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L187" class="LineNr">187 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L188" class="LineNr">188 </span>  render-gap-buffer <a href='../../405screen.mu.html#L9'>screen</a>, data
+<span id="L189" class="LineNr">189 </span><span class="Delimiter">}</span>
+<span id="L190" class="LineNr">190 </span>
+<span id="L191" class="LineNr">191 </span><span class="muComment"># one implication of handles: append must take a handle</span>
+<span id="L192" class="LineNr">192 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L192'>append-word</a></span> _self-ah: (addr handle word) <span class="Delimiter">{</span>
+<span id="L193" class="LineNr">193 </span>  <span class="PreProc">var</span> self-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> copy _self-ah
+<span id="L194" class="LineNr">194 </span>  <span class="PreProc">var</span> _self/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *self-ah
+<span id="L195" class="LineNr">195 </span>  <span class="PreProc">var</span> self/<span class="Constant">ebx</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L196" class="LineNr">196 </span>  <span class="muComment"># allocate new handle</span>
+<span id="L197" class="LineNr">197 </span>  <span class="PreProc">var</span> new: (handle word)
+<span id="L198" class="LineNr">198 </span>  <span class="PreProc">var</span> new-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> address new
+<span id="L199" class="LineNr">199 </span>  <a href='../../120allocate.subx.html#L66'>allocate</a> new-ah
+<span id="L200" class="LineNr">200 </span>  <span class="PreProc">var</span> new-addr/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> new
+<span id="L201" class="LineNr">201 </span>  <a href='word.mu.html#L1'>initialize-word</a> new-addr
+<span id="L202" class="LineNr">202 </span>  <span class="muComment"># new-&gt;next = self-&gt;next</span>
+<span id="L203" class="LineNr">203 </span>  <span class="PreProc">var</span> src/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, next
+<span id="L204" class="LineNr">204 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> new-addr, next
+<span id="L205" class="LineNr">205 </span>  copy-object src, dest
+<span id="L206" class="LineNr">206 </span>  <span class="muComment"># new-&gt;next-&gt;prev = new</span>
+<span id="L207" class="LineNr">207 </span>  <span class="Delimiter">{</span>
+<span id="L208" class="LineNr">208 </span>    <span class="PreProc">var</span> next-addr/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *src
+<span id="L209" class="LineNr">209 </span>    compare next-addr, <span class="Constant">0</span>
+<span id="L210" class="LineNr">210 </span>    <span class="PreProc">break-if-=</span>
+<span id="L211" class="LineNr">211 </span>    dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> next-addr, prev
+<span id="L212" class="LineNr">212 </span>    copy-object new-ah, dest
+<span id="L213" class="LineNr">213 </span>  <span class="Delimiter">}</span>
+<span id="L214" class="LineNr">214 </span>  <span class="muComment"># new-&gt;prev = self</span>
+<span id="L215" class="LineNr">215 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> new-addr, prev
+<span id="L216" class="LineNr">216 </span>  copy-object _self-ah, dest
+<span id="L217" class="LineNr">217 </span>  <span class="muComment"># self-&gt;next = new</span>
+<span id="L218" class="LineNr">218 </span>  dest <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, next
+<span id="L219" class="LineNr">219 </span>  copy-object new-ah, dest
+<span id="L220" class="LineNr">220 </span><span class="Delimiter">}</span>
+<span id="L221" class="LineNr">221 </span>
+<span id="L222" class="LineNr">222 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L222'>emit-word</a></span> _self: (addr word), out: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L223" class="LineNr">223 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L224" class="LineNr">224 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L225" class="LineNr">225 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L226" class="LineNr">226 </span>  emit-gap-buffer data, out
+<span id="L227" class="LineNr">227 </span><span class="Delimiter">}</span>
+<span id="L228" class="LineNr">228 </span>
+<span id="L229" class="LineNr">229 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='word.mu.html#L229'>word-to-string</a></span> _self: (addr word), out: (addr handle array byte) <span class="Delimiter">{</span>
+<span id="L230" class="LineNr">230 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr word) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L231" class="LineNr">231 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../131table.subx.html#L26'>get</a> self, scalar-data
+<span id="L232" class="LineNr">232 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr gap-buffer) <span class="SpecialChar">&lt;-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *data-ah
+<span id="L233" class="LineNr">233 </span>  gap-buffer-to-string data, out
+<span id="L234" class="LineNr">234 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
author	Kartik Agaram <vc@akkartik.com>	2020-10-05 11:00:05 -0700
committer	Kartik Agaram <vc@akkartik.com>	2020-10-05 11:00:05 -0700
commit	d3a9db3aff54ea485f409eaaef3d8f56ad77f0dc (patch)
tree	60858669ff7c5a5b041e4dacb8ffffa0a4b3e68a /html/apps/tile
parent	f13576b5d273ef9175e938b15f55bb1ead22fb1d (diff)
download	mu-d3a9db3aff54ea485f409eaaef3d8f56ad77f0dc.tar.gz