.

author: Kartik Agaram <vc@akkartik.com> 2021-03-23 17:31:08 -0700
committer: Kartik Agaram <vc@akkartik.com> 2021-03-23 17:31:08 -0700
commit: 3350c34a74844e21ea69077e01efff3bae64bdcd (patch)
tree: fa06ba58542297d1cff6b78958d4547a40a25d21 /html/shell
parent: 62a244211024a8367332541c571621883c05bcce (diff)
download: mu-3350c34a74844e21ea69077e01efff3bae64bdcd.tar.gz
11 files changed, 5527 insertions, 0 deletions
diff --git a/html/shell/cell.mu.html b/html/shell/cell.mu.html
new file mode 100644
index 00000000..3713e3e9
--- /dev/null
+++ b/html/shell/cell.mu.html
@@ -0,0 +1,174 @@
+<!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 - shell/cell.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">
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+<!--
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+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
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+    lineNum = 'L'+lineNum;
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+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/cell.mu'>https://github.com/akkartik/mu/blob/main/shell/cell.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">type</span> <a href='cell.mu.html#L1'>cell</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <span class="PreProc">type</span>: int
+<span id="L3" class="LineNr">  3 </span>  <span class="muComment"># type 0: pair; the unit of lists, trees, DAGS or graphs</span>
+<span id="L4" class="LineNr">  4 </span>  left: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L5" class="LineNr">  5 </span>  right: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L6" class="LineNr">  6 </span>  <span class="muComment"># type 1: number</span>
+<span id="L7" class="LineNr">  7 </span>  number-data: float
+<span id="L8" class="LineNr">  8 </span>  <span class="muComment"># type 2: symbol</span>
+<span id="L9" class="LineNr">  9 </span>  <span class="muComment"># type 3: string</span>
+<span id="L10" class="LineNr"> 10 </span>  text-data: (handle stream byte)
+<span id="L11" class="LineNr"> 11 </span>  <span class="muComment"># type 4: primitive function</span>
+<span id="L12" class="LineNr"> 12 </span>  index-data: int
+<span id="L13" class="LineNr"> 13 </span>  <span class="muComment"># TODO: array, (associative) table, stream</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='cell.mu.html#L16'>allocate-symbol</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L17" class="LineNr"> 17 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L18" class="LineNr"> 18 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> out
+<span id="L19" class="LineNr"> 19 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L20" class="LineNr"> 20 </span>  <span class="PreProc">var</span> <span class="PreProc">type</span>/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get out-addr, <span class="PreProc">type</span>
+<span id="L21" class="LineNr"> 21 </span>  copy-to *<span class="PreProc">type</span>, <span class="Constant">2</span>/symbol
+<span id="L22" class="LineNr"> 22 </span>  <span class="PreProc">var</span> dest-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get out-addr, text-data
+<span id="L23" class="LineNr"> 23 </span>  populate-stream dest-ah, <span class="Constant">0x40</span>/max-symbol-size
+<span id="L24" class="LineNr"> 24 </span><span class="Delimiter">}</span>
+<span id="L25" class="LineNr"> 25 </span>
+<span id="L26" class="LineNr"> 26 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L26'>initialize-symbol</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), val: (addr array byte) <span class="Delimiter">{</span>
+<span id="L27" class="LineNr"> 27 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L28" class="LineNr"> 28 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L29" class="LineNr"> 29 </span>  <span class="PreProc">var</span> dest-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get out-addr, text-data
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *dest-ah
+<span id="L31" class="LineNr"> 31 </span>  <a href='../108write.subx.html#L11'>write</a> dest, val
+<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='cell.mu.html#L34'>new-symbol</a></span> out: (addr handle <a href='cell.mu.html#L1'>cell</a>), val: (addr array byte) <span class="Delimiter">{</span>
+<span id="L35" class="LineNr"> 35 </span>  <a href='cell.mu.html#L16'>allocate-symbol</a> out
+<span id="L36" class="LineNr"> 36 </span>  <a href='cell.mu.html#L26'>initialize-symbol</a> out, val
+<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='cell.mu.html#L39'>allocate-number</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L41" class="LineNr"> 41 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> out
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> <span class="PreProc">type</span>/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get out-addr, <span class="PreProc">type</span>
+<span id="L44" class="LineNr"> 44 </span>  copy-to *<span class="PreProc">type</span>, <span class="Constant">1</span>/number
+<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span>
+<span id="L46" class="LineNr"> 46 </span>
+<span id="L47" class="LineNr"> 47 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L47'>initialize-integer</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), n: int <span class="Delimiter">{</span>
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L49" class="LineNr"> 49 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get out-addr, number-data
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> src/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> convert n
+<span id="L52" class="LineNr"> 52 </span>  copy-to *dest-addr, src
+<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='cell.mu.html#L55'>new-integer</a></span> out: (addr handle <a href='cell.mu.html#L1'>cell</a>), n: int <span class="Delimiter">{</span>
+<span id="L56" class="LineNr"> 56 </span>  <a href='cell.mu.html#L39'>allocate-number</a> out
+<span id="L57" class="LineNr"> 57 </span>  <a href='cell.mu.html#L47'>initialize-integer</a> out, n
+<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span>
+<span id="L59" class="LineNr"> 59 </span>
+<span id="L60" class="LineNr"> 60 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L60'>initialize-float</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), n: float <span class="Delimiter">{</span>
+<span id="L61" class="LineNr"> 61 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L62" class="LineNr"> 62 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> dest-ah/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get out-addr, number-data
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> src/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> copy n
+<span id="L65" class="LineNr"> 65 </span>  copy-to *dest-ah, src
+<span id="L66" class="LineNr"> 66 </span><span class="Delimiter">}</span>
+<span id="L67" class="LineNr"> 67 </span>
+<span id="L68" class="LineNr"> 68 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L68'>new-float</a></span> out: (addr handle <a href='cell.mu.html#L1'>cell</a>), n: float <span class="Delimiter">{</span>
+<span id="L69" class="LineNr"> 69 </span>  <a href='cell.mu.html#L39'>allocate-number</a> out
+<span id="L70" class="LineNr"> 70 </span>  <a href='cell.mu.html#L60'>initialize-float</a> out, n
+<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='cell.mu.html#L73'>allocate-pair</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L75" class="LineNr"> 75 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> out
+<span id="L76" class="LineNr"> 76 </span>  <span class="muComment"># new cells have type pair by default</span>
+<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">}</span>
+<span id="L78" class="LineNr"> 78 </span>
+<span id="L79" class="LineNr"> 79 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L79'>initialize-pair</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), left: (handle <a href='cell.mu.html#L1'>cell</a>), right: (handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L81" class="LineNr"> 81 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L82" class="LineNr"> 82 </span>  <span class="PreProc">var</span> dest-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get out-addr, left
+<span id="L83" class="LineNr"> 83 </span>  <a href='../120allocate.subx.html#L455'>copy-handle</a> left, dest-ah
+<span id="L84" class="LineNr"> 84 </span>  dest-ah <span class="Special">&lt;-</span> get out-addr, right
+<span id="L85" class="LineNr"> 85 </span>  <a href='../120allocate.subx.html#L455'>copy-handle</a> right, dest-ah
+<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span>
+<span id="L87" class="LineNr"> 87 </span>
+<span id="L88" class="LineNr"> 88 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L88'>new-pair</a></span> out: (addr handle <a href='cell.mu.html#L1'>cell</a>), left: (handle <a href='cell.mu.html#L1'>cell</a>), right: (handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L89" class="LineNr"> 89 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> out
+<span id="L90" class="LineNr"> 90 </span>  <a href='cell.mu.html#L79'>initialize-pair</a> out, left, right
+<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span>
+<span id="L92" class="LineNr"> 92 </span>
+<span id="L93" class="LineNr"> 93 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L93'>allocate-primitive-function</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L95" class="LineNr"> 95 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> out
+<span id="L96" class="LineNr"> 96 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L97" class="LineNr"> 97 </span>  <span class="PreProc">var</span> <span class="PreProc">type</span>/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get out-addr, <span class="PreProc">type</span>
+<span id="L98" class="LineNr"> 98 </span>  copy-to *<span class="PreProc">type</span>, <span class="Constant">4</span>/primitive-function
+<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='cell.mu.html#L101'>initialize-primitive-function</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), n: int <span class="Delimiter">{</span>
+<span id="L102" class="LineNr">102 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L103" class="LineNr">103 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L104" class="LineNr">104 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get out-addr, index-data
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> src/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy n
+<span id="L106" class="LineNr">106 </span>  copy-to *dest-addr, src
+<span id="L107" class="LineNr">107 </span><span class="Delimiter">}</span>
+<span id="L108" class="LineNr">108 </span>
+<span id="L109" class="LineNr">109 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L109'>new-primitive-function</a></span> out: (addr handle <a href='cell.mu.html#L1'>cell</a>), n: int <span class="Delimiter">{</span>
+<span id="L110" class="LineNr">110 </span>  <a href='cell.mu.html#L93'>allocate-primitive-function</a> out
+<span id="L111" class="LineNr">111 </span>  <a href='cell.mu.html#L101'>initialize-primitive-function</a> out, n
+<span id="L112" class="LineNr">112 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/eval.mu.html b/html/shell/eval.mu.html
new file mode 100644
index 00000000..274475dd
--- /dev/null
+++ b/html/shell/eval.mu.html
@@ -0,0 +1,808 @@
+<!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 - shell/eval.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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+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/eval.mu'>https://github.com/akkartik/mu/blob/main/shell/eval.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># env is an alist of ((sym . val) (sym . val) ...)</span>
+<span id="L2" class="LineNr">  2 </span><span class="muComment"># we never modify `in` or `env`</span>
+<span id="L3" class="LineNr">  3 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L3'>evaluate</a></span> _in: (addr handle <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), env-h: (handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L4" class="LineNr">  4 </span>  <span class="PreProc">var</span> in/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L5" class="Folded">  5 </span><span class="Folded">+-- 12 lines: # trace &quot;evaluate &quot; in &quot; in environment &quot; env -----------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L17" class="LineNr"> 17 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> in-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *in
+<span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">{</span>
+<span id="L20" class="LineNr"> 20 </span>    <span class="PreProc">var</span> <a href='print.mu.html#L116'>nil?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> in-addr
+<span id="L21" class="LineNr"> 21 </span>    compare <a href='print.mu.html#L116'>nil?</a>, <span class="Constant">0</span>/false
+<span id="L22" class="LineNr"> 22 </span>    <span class="PreProc">break-if-=</span>
+<span id="L23" class="LineNr"> 23 </span>    <span class="muComment"># nil is a literal</span>
+<span id="L24" class="LineNr"> 24 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;nil&quot;</span>
+<span id="L25" class="LineNr"> 25 </span>    copy-object _in, out
+<span id="L26" class="LineNr"> 26 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">return</span>
+<span id="L28" class="LineNr"> 28 </span>  <span class="Delimiter">}</span>
+<span id="L29" class="LineNr"> 29 </span>  <span class="PreProc">var</span> in-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get in-addr, <span class="PreProc">type</span>
+<span id="L30" class="LineNr"> 30 </span>  compare *in-type, <span class="Constant">1</span>/number
+<span id="L31" class="LineNr"> 31 </span>  <span class="Delimiter">{</span>
+<span id="L32" class="LineNr"> 32 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L33" class="LineNr"> 33 </span>    <span class="muComment"># numbers are literals</span>
+<span id="L34" class="LineNr"> 34 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;number&quot;</span>
+<span id="L35" class="LineNr"> 35 </span>    copy-object _in, out
+<span id="L36" class="LineNr"> 36 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L37" class="LineNr"> 37 </span>    <span class="PreProc">return</span>
+<span id="L38" class="LineNr"> 38 </span>  <span class="Delimiter">}</span>
+<span id="L39" class="LineNr"> 39 </span>  compare *in-type, <span class="Constant">2</span>/symbol
+<span id="L40" class="LineNr"> 40 </span>  <span class="Delimiter">{</span>
+<span id="L41" class="LineNr"> 41 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L42" class="LineNr"> 42 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;symbol&quot;</span>
+<span id="L43" class="LineNr"> 43 </span>    <a href='eval.mu.html#L321'>lookup-symbol</a> in-addr, out, env-h, trace
+<span id="L44" class="LineNr"> 44 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L45" class="LineNr"> 45 </span>    <span class="PreProc">return</span>
+<span id="L46" class="LineNr"> 46 </span>  <span class="Delimiter">}</span>
+<span id="L47" class="LineNr"> 47 </span>  <span class="muComment"># in-addr is a syntax tree</span>
+<span id="L48" class="LineNr"> 48 </span>  $evaluate:anonymous-function: <span class="Delimiter">{</span>
+<span id="L49" class="LineNr"> 49 </span>    <span class="muComment"># trees starting with &quot;fn&quot; are anonymous functions and therefore literals</span>
+<span id="L50" class="LineNr"> 50 </span>    <span class="PreProc">var</span> expr/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy in-addr
+<span id="L51" class="LineNr"> 51 </span>    <span class="muComment"># if its first elem is not &quot;fn&quot;, break</span>
+<span id="L52" class="LineNr"> 52 </span>    <span class="PreProc">var</span> first-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get in-addr, left
+<span id="L53" class="LineNr"> 53 </span>    <span class="PreProc">var</span> first/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *first-ah
+<span id="L54" class="LineNr"> 54 </span>    <span class="PreProc">var</span> <a href='eval.mu.html#L694'>fn?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='eval.mu.html#L694'>fn?</a> first
+<span id="L55" class="LineNr"> 55 </span>    compare <a href='eval.mu.html#L694'>fn?</a>, <span class="Constant">0</span>/false
+<span id="L56" class="LineNr"> 56 </span>    <span class="PreProc">break-if-=</span>
+<span id="L57" class="LineNr"> 57 </span>    <span class="muComment">#</span>
+<span id="L58" class="LineNr"> 58 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;anonymous function&quot;</span>
+<span id="L59" class="LineNr"> 59 </span>    copy-object _in, out
+<span id="L60" class="LineNr"> 60 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L61" class="LineNr"> 61 </span>    <span class="PreProc">return</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="Delimiter">}</span>
+<span id="L63" class="LineNr"> 63 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;function call&quot;</span>
+<span id="L64" class="LineNr"> 64 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;evaluating list elements&quot;</span>
+<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> evaluated-list-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> evaluated-list-ah/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address evaluated-list-storage
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> curr-out-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy evaluated-list-ah
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy in-addr
+<span id="L69" class="LineNr"> 69 </span>  $evaluate-list:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L70" class="LineNr"> 70 </span>    <a href='cell.mu.html#L73'>allocate-pair</a> curr-out-ah
+<span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">var</span> <a href='print.mu.html#L116'>nil?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> curr
+<span id="L72" class="LineNr"> 72 </span>    compare <a href='print.mu.html#L116'>nil?</a>, <span class="Constant">0</span>/false
+<span id="L73" class="LineNr"> 73 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L74" class="LineNr"> 74 </span>    <span class="muComment"># eval left</span>
+<span id="L75" class="LineNr"> 75 </span>    <span class="PreProc">var</span> curr-out/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-out-ah
+<span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">var</span> left-out-ah/<span class="Constant">edi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr-out, left
+<span id="L77" class="LineNr"> 77 </span>    <span class="PreProc">var</span> left-ah/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr, left
+<span id="L78" class="LineNr"> 78 </span>    <a href='eval.mu.html#L3'>evaluate</a> left-ah, left-out-ah, env-h, trace
+<span id="L79" class="LineNr"> 79 </span>    <span class="muComment">#</span>
+<span id="L80" class="LineNr"> 80 </span>    curr-out-ah <span class="Special">&lt;-</span> get curr-out, right
+<span id="L81" class="LineNr"> 81 </span>    <span class="PreProc">var</span> right-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr, right
+<span id="L82" class="LineNr"> 82 </span>    <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *right-ah
+<span id="L83" class="LineNr"> 83 </span>    curr <span class="Special">&lt;-</span> copy right
+<span id="L84" class="LineNr"> 84 </span>    <span class="PreProc">loop</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">}</span>
+<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> evaluated-list/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *evaluated-list-ah
+<span id="L87" class="LineNr"> 87 </span>  <span class="PreProc">var</span> function-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get evaluated-list, left
+<span id="L88" class="LineNr"> 88 </span>  <span class="PreProc">var</span> args-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get evaluated-list, right
+<span id="L89" class="LineNr"> 89 </span><span class="CommentedCode">#?   dump-cell args-ah</span>
+<span id="L90" class="LineNr"> 90 </span><span class="CommentedCode">#?   abort &quot;aaa&quot;</span>
+<span id="L91" class="LineNr"> 91 </span>  <a href='eval.mu.html#L104'>apply</a> function-ah, args-ah, out, env-h, trace
+<span id="L92" class="LineNr"> 92 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L93" class="Folded"> 93 </span><span class="Folded">+--  9 lines: # trace &quot;=&gt; &quot; out ---------------------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L102" class="LineNr">102 </span><span class="Delimiter">}</span>
+<span id="L103" class="LineNr">103 </span>
+<span id="L104" class="LineNr">104 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L104'>apply</a></span> _f-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), args-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), env-h: (handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> f-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _f-ah
+<span id="L106" class="LineNr">106 </span>  <span class="PreProc">var</span> _f/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *f-ah
+<span id="L107" class="LineNr">107 </span>  <span class="PreProc">var</span> f/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _f
+<span id="L108" class="LineNr">108 </span>  <span class="muComment"># call primitive functions</span>
+<span id="L109" class="LineNr">109 </span>  <span class="Delimiter">{</span>
+<span id="L110" class="LineNr">110 </span>    <span class="PreProc">var</span> f-type/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get f, <span class="PreProc">type</span>
+<span id="L111" class="LineNr">111 </span>    compare *f-type, <span class="Constant">4</span>/primitive-function
+<span id="L112" class="LineNr">112 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L113" class="LineNr">113 </span>    <a href='eval.mu.html#L261'>apply-primitive</a> f, args-ah, out, env-h, trace
+<span id="L114" class="LineNr">114 </span>    <span class="PreProc">return</span>
+<span id="L115" class="LineNr">115 </span>  <span class="Delimiter">}</span>
+<span id="L116" class="LineNr">116 </span>  <span class="muComment"># if it's not a primitive function it must be an anonymous function</span>
+<span id="L117" class="Folded">117 </span><span class="Folded">+-- 12 lines: # trace &quot;apply anonymous function &quot; f &quot; in environment &quot; env --------------------------------------------------------------------------------------------------------------</span>
+<span id="L129" class="LineNr">129 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L130" class="LineNr">130 </span>  <span class="Delimiter">{</span>
+<span id="L131" class="LineNr">131 </span>    <span class="PreProc">var</span> f-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get f, <span class="PreProc">type</span>
+<span id="L132" class="LineNr">132 </span>    compare *f-type, <span class="Constant">0</span>/pair
+<span id="L133" class="LineNr">133 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L134" class="LineNr">134 </span>    <span class="PreProc">var</span> first-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get f, left
+<span id="L135" class="LineNr">135 </span>    <span class="PreProc">var</span> first/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *first-ah
+<span id="L136" class="LineNr">136 </span>    <span class="PreProc">var</span> <a href='eval.mu.html#L694'>fn?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='eval.mu.html#L694'>fn?</a> first
+<span id="L137" class="LineNr">137 </span>    compare <a href='eval.mu.html#L694'>fn?</a>, <span class="Constant">0</span>/false
+<span id="L138" class="LineNr">138 </span>    <span class="PreProc">break-if-=</span>
+<span id="L139" class="LineNr">139 </span>    <span class="PreProc">var</span> rest-ah/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get f, right
+<span id="L140" class="LineNr">140 </span>    <span class="PreProc">var</span> rest/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *rest-ah
+<span id="L141" class="LineNr">141 </span>    <span class="PreProc">var</span> params-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get rest, left
+<span id="L142" class="LineNr">142 </span>    <span class="PreProc">var</span> body-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get rest, right
+<span id="L143" class="LineNr">143 </span>    <a href='eval.mu.html#L150'>apply-function</a> params-ah, args-ah, body-ah, out, env-h, trace
+<span id="L144" class="LineNr">144 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L145" class="LineNr">145 </span>    <span class="PreProc">return</span>
+<span id="L146" class="LineNr">146 </span>  <span class="Delimiter">}</span>
+<span id="L147" class="LineNr">147 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;unknown function&quot;</span>
+<span id="L148" class="LineNr">148 </span><span class="Delimiter">}</span>
+<span id="L149" class="LineNr">149 </span>
+<span id="L150" class="LineNr">150 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L150'>apply-function</a></span> params-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), args-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), _body-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), env-h: (handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L151" class="LineNr">151 </span>  <span class="muComment"># push bindings for params to env</span>
+<span id="L152" class="LineNr">152 </span>  <span class="PreProc">var</span> new-env-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L153" class="LineNr">153 </span>  <span class="PreProc">var</span> new-env-ah/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address new-env-storage
+<span id="L154" class="LineNr">154 </span>  <a href='eval.mu.html#L188'>push-bindings</a> params-ah, args-ah, env-h, new-env-ah, trace
+<span id="L155" class="LineNr">155 </span>  <span class="muComment"># eval all expressions in body, writing result to `out` each time</span>
+<span id="L156" class="LineNr">156 </span>  <span class="PreProc">var</span> body-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _body-ah
+<span id="L157" class="LineNr">157 </span>  $apply-function:body: <span class="Delimiter">{</span>
+<span id="L158" class="LineNr">158 </span>    <span class="PreProc">var</span> body/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *body-ah
+<span id="L159" class="LineNr">159 </span>    <span class="muComment"># stop when body is nil</span>
+<span id="L160" class="LineNr">160 </span>    <span class="Delimiter">{</span>
+<span id="L161" class="LineNr">161 </span>      <span class="PreProc">var</span> body-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> body
+<span id="L162" class="LineNr">162 </span>      compare body-nil?, <span class="Constant">0</span>/false
+<span id="L163" class="LineNr">163 </span>      <span class="PreProc">break-if-!=</span> $apply-function:body
+<span id="L164" class="LineNr">164 </span>    <span class="Delimiter">}</span>
+<span id="L165" class="LineNr">165 </span>    <span class="muComment"># evaluate each expression, writing result to `out`</span>
+<span id="L166" class="LineNr">166 </span>    <span class="Delimiter">{</span>
+<span id="L167" class="LineNr">167 </span>      <span class="PreProc">var</span> curr-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get body, left
+<span id="L168" class="LineNr">168 </span>      <a href='eval.mu.html#L3'>evaluate</a> curr-ah, out, *new-env-ah, trace
+<span id="L169" class="LineNr">169 </span>    <span class="Delimiter">}</span>
+<span id="L170" class="LineNr">170 </span>    <span class="muComment">#</span>
+<span id="L171" class="LineNr">171 </span>    body-ah <span class="Special">&lt;-</span> get body, right
+<span id="L172" class="LineNr">172 </span>    <span class="PreProc">loop</span>
+<span id="L173" class="LineNr">173 </span>  <span class="Delimiter">}</span>
+<span id="L174" class="LineNr">174 </span>  <span class="muComment"># `out` contains result of evaluating final expression</span>
+<span id="L175" class="LineNr">175 </span><span class="Delimiter">}</span>
+<span id="L176" class="LineNr">176 </span>
+<span id="L177" class="LineNr">177 </span><span class="muComment"># Bind params to corresponding args and add the bindings to old-env. Return</span>
+<span id="L178" class="LineNr">178 </span><span class="muComment"># the result in env-ah.</span>
+<span id="L179" class="LineNr">179 </span><span class="muComment">#</span>
+<span id="L180" class="LineNr">180 </span><span class="muComment"># We never modify old-env, but we point to it. This way other parts of the</span>
+<span id="L181" class="LineNr">181 </span><span class="muComment"># interpreter can continue using old-env, and everything works harmoniously</span>
+<span id="L182" class="LineNr">182 </span><span class="muComment"># even though no cells are copied around.</span>
+<span id="L183" class="LineNr">183 </span><span class="muComment">#</span>
+<span id="L184" class="LineNr">184 </span><span class="muComment"># env should always be a DAG (ignoring internals of values). It doesn't have</span>
+<span id="L185" class="LineNr">185 </span><span class="muComment"># to be a tree (some values may be shared), but there are also no cycles.</span>
+<span id="L186" class="LineNr">186 </span><span class="muComment">#</span>
+<span id="L187" class="LineNr">187 </span><span class="muComment"># Learn more: <a href="https://en.wikipedia.org/wiki/Persistent_data_structure">https://en.wikipedia.org/wiki/Persistent_data_structure</a></span>
+<span id="L188" class="LineNr">188 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L188'>push-bindings</a></span> _params-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), _args-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), old-env-h: (handle <a href='cell.mu.html#L1'>cell</a>), env-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L189" class="LineNr">189 </span>  <span class="PreProc">var</span> params-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _params-ah
+<span id="L190" class="LineNr">190 </span>  <span class="PreProc">var</span> args-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _args-ah
+<span id="L191" class="LineNr">191 </span>  <span class="PreProc">var</span> _params/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *params-ah
+<span id="L192" class="LineNr">192 </span>  <span class="PreProc">var</span> params/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _params
+<span id="L193" class="LineNr">193 </span>  <span class="Delimiter">{</span>
+<span id="L194" class="LineNr">194 </span>    <span class="PreProc">var</span> params-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> params
+<span id="L195" class="LineNr">195 </span>    compare params-nil?, <span class="Constant">0</span>/false
+<span id="L196" class="LineNr">196 </span>    <span class="PreProc">break-if-=</span>
+<span id="L197" class="LineNr">197 </span>    <span class="muComment"># nil is a literal</span>
+<span id="L198" class="LineNr">198 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;done with push-bindings&quot;</span>
+<span id="L199" class="LineNr">199 </span>    <a href='../120allocate.subx.html#L455'>copy-handle</a> old-env-h, env-ah
+<span id="L200" class="LineNr">200 </span>    <span class="PreProc">return</span>
+<span id="L201" class="LineNr">201 </span>  <span class="Delimiter">}</span>
+<span id="L202" class="LineNr">202 </span>  <span class="muComment"># Params can only be symbols or pairs. Args can be anything.</span>
+<span id="L203" class="Folded">203 </span><span class="Folded">+-- 14 lines: # trace &quot;pushing bindings from &quot; params &quot; to &quot; args -----------------------------------------------------------------------------------------------------------------------</span>
+<span id="L217" class="LineNr">217 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L218" class="LineNr">218 </span>  <span class="PreProc">var</span> params-type/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get params, <span class="PreProc">type</span>
+<span id="L219" class="LineNr">219 </span>  compare *params-type, <span class="Constant">2</span>/symbol
+<span id="L220" class="LineNr">220 </span>  <span class="Delimiter">{</span>
+<span id="L221" class="LineNr">221 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L222" class="LineNr">222 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;symbol; binding to all remaining args&quot;</span>
+<span id="L223" class="LineNr">223 </span>    <span class="muComment"># create a new binding</span>
+<span id="L224" class="LineNr">224 </span>    <span class="PreProc">var</span> new-binding-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L225" class="LineNr">225 </span>    <span class="PreProc">var</span> new-binding-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address new-binding-storage
+<span id="L226" class="LineNr">226 </span>    <a href='cell.mu.html#L88'>new-pair</a> new-binding-ah, *params-ah, *args-ah
+<span id="L227" class="LineNr">227 </span>    <span class="muComment"># push it to env</span>
+<span id="L228" class="LineNr">228 </span>    <a href='cell.mu.html#L88'>new-pair</a> env-ah, *new-binding-ah, old-env-h
+<span id="L229" class="LineNr">229 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L230" class="LineNr">230 </span>    <span class="PreProc">return</span>
+<span id="L231" class="LineNr">231 </span>  <span class="Delimiter">}</span>
+<span id="L232" class="LineNr">232 </span>  compare *params-type, <span class="Constant">0</span>/pair
+<span id="L233" class="LineNr">233 </span>  <span class="Delimiter">{</span>
+<span id="L234" class="LineNr">234 </span>    <span class="PreProc">break-if-=</span>
+<span id="L235" class="LineNr">235 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;cannot bind a non-symbol&quot;</span>
+<span id="L236" class="LineNr">236 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L237" class="LineNr">237 </span>    <span class="PreProc">return</span>
+<span id="L238" class="LineNr">238 </span>  <span class="Delimiter">}</span>
+<span id="L239" class="LineNr">239 </span>  <span class="PreProc">var</span> _args/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *args-ah
+<span id="L240" class="LineNr">240 </span>  <span class="PreProc">var</span> args/<span class="Constant">edi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _args
+<span id="L241" class="LineNr">241 </span>  <span class="muComment"># params is now a pair, so args must be also</span>
+<span id="L242" class="LineNr">242 </span>  <span class="PreProc">var</span> args-type/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get args, <span class="PreProc">type</span>
+<span id="L243" class="LineNr">243 </span>  compare *args-type, <span class="Constant">0</span>/pair
+<span id="L244" class="LineNr">244 </span>  <span class="Delimiter">{</span>
+<span id="L245" class="LineNr">245 </span>    <span class="PreProc">break-if-=</span>
+<span id="L246" class="LineNr">246 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;args not in a proper list&quot;</span>
+<span id="L247" class="LineNr">247 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L248" class="LineNr">248 </span>    <span class="PreProc">return</span>
+<span id="L249" class="LineNr">249 </span>  <span class="Delimiter">}</span>
+<span id="L250" class="LineNr">250 </span>  <span class="PreProc">var</span> intermediate-env-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L251" class="LineNr">251 </span>  <span class="PreProc">var</span> intermediate-env-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address intermediate-env-storage
+<span id="L252" class="LineNr">252 </span>  <span class="PreProc">var</span> first-param-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get params, left
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> first-arg-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get args, left
+<span id="L254" class="LineNr">254 </span>  <a href='eval.mu.html#L188'>push-bindings</a> first-param-ah, first-arg-ah, old-env-h, intermediate-env-ah, trace
+<span id="L255" class="LineNr">255 </span>  <span class="PreProc">var</span> remaining-params-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get params, right
+<span id="L256" class="LineNr">256 </span>  <span class="PreProc">var</span> remaining-args-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get args, right
+<span id="L257" class="LineNr">257 </span>  <a href='eval.mu.html#L188'>push-bindings</a> remaining-params-ah, remaining-args-ah, *intermediate-env-ah, env-ah, trace
+<span id="L258" class="LineNr">258 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L259" class="LineNr">259 </span><span class="Delimiter">}</span>
+<span id="L260" class="LineNr">260 </span>
+<span id="L261" class="LineNr">261 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L261'>apply-primitive</a></span> _f: (addr <a href='cell.mu.html#L1'>cell</a>), args-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), env-h: (handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L262" class="LineNr">262 </span>  <span class="PreProc">var</span> f/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _f
+<span id="L263" class="LineNr">263 </span>  <span class="PreProc">var</span> f-index/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get f, index-data
+<span id="L264" class="LineNr">264 </span>  <span class="Delimiter">{</span>
+<span id="L265" class="LineNr">265 </span>    compare *f-index, <span class="Constant">1</span>/add
+<span id="L266" class="LineNr">266 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L267" class="LineNr">267 </span>    <a href='eval.mu.html#L273'>apply-add</a> args-ah, out, env-h, trace
+<span id="L268" class="LineNr">268 </span>    <span class="PreProc">return</span>
+<span id="L269" class="LineNr">269 </span>  <span class="Delimiter">}</span>
+<span id="L270" class="LineNr">270 </span>  <a href='../501draw-text.mu.html#L459'>abort</a> <span class="Constant">&quot;unknown primitive function&quot;</span>
+<span id="L271" class="LineNr">271 </span><span class="Delimiter">}</span>
+<span id="L272" class="LineNr">272 </span>
+<span id="L273" class="LineNr">273 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L273'>apply-add</a></span> _args-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), env-h: (handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L274" class="LineNr">274 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;apply +&quot;</span>
+<span id="L275" class="LineNr">275 </span>  <span class="PreProc">var</span> args-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _args-ah
+<span id="L276" class="LineNr">276 </span>  <span class="PreProc">var</span> _args/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *args-ah
+<span id="L277" class="LineNr">277 </span>  <span class="PreProc">var</span> args/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _args
+<span id="L278" class="LineNr">278 </span>  <span class="PreProc">var</span> _env/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> env-h
+<span id="L279" class="LineNr">279 </span>  <span class="PreProc">var</span> env/<span class="Constant">edi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _env
+<span id="L280" class="LineNr">280 </span>  <span class="muComment"># TODO: check that args is a pair</span>
+<span id="L281" class="LineNr">281 </span>  <span class="PreProc">var</span> empty-args?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> args
+<span id="L282" class="LineNr">282 </span>  compare empty-args?, <span class="Constant">0</span>/false
+<span id="L283" class="LineNr">283 </span>  <span class="Delimiter">{</span>
+<span id="L284" class="LineNr">284 </span>    <span class="PreProc">break-if-=</span>
+<span id="L285" class="LineNr">285 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;+ needs 2 args but got 0&quot;</span>
+<span id="L286" class="LineNr">286 </span>    <span class="PreProc">return</span>
+<span id="L287" class="LineNr">287 </span>  <span class="Delimiter">}</span>
+<span id="L288" class="LineNr">288 </span>  <span class="muComment"># args-&gt;left-&gt;value</span>
+<span id="L289" class="LineNr">289 </span>  <span class="PreProc">var</span> first-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get args, left
+<span id="L290" class="LineNr">290 </span>  <span class="PreProc">var</span> first/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *first-ah
+<span id="L291" class="LineNr">291 </span>  <span class="PreProc">var</span> first-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get first, <span class="PreProc">type</span>
+<span id="L292" class="LineNr">292 </span>  compare *first-type, <span class="Constant">1</span>/number
+<span id="L293" class="LineNr">293 </span>  <span class="Delimiter">{</span>
+<span id="L294" class="LineNr">294 </span>    <span class="PreProc">break-if-=</span>
+<span id="L295" class="LineNr">295 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;first arg for + is not a number&quot;</span>
+<span id="L296" class="LineNr">296 </span>    <span class="PreProc">return</span>
+<span id="L297" class="LineNr">297 </span>  <span class="Delimiter">}</span>
+<span id="L298" class="LineNr">298 </span>  <span class="PreProc">var</span> first-value/<span class="Constant">ecx</span>: (addr float) <span class="Special">&lt;-</span> get first, number-data
+<span id="L299" class="LineNr">299 </span>  <span class="muComment"># args-&gt;right-&gt;left-&gt;value</span>
+<span id="L300" class="LineNr">300 </span>  <span class="PreProc">var</span> right-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get args, right
+<span id="L301" class="LineNr">301 </span><span class="CommentedCode">#?   dump-cell right-ah</span>
+<span id="L302" class="LineNr">302 </span><span class="CommentedCode">#?   abort &quot;aaa&quot;</span>
+<span id="L303" class="LineNr">303 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *right-ah
+<span id="L304" class="LineNr">304 </span>  <span class="muComment"># TODO: check that right is a pair</span>
+<span id="L305" class="LineNr">305 </span>  <span class="PreProc">var</span> second-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get right, left
+<span id="L306" class="LineNr">306 </span>  <span class="PreProc">var</span> second/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *second-ah
+<span id="L307" class="LineNr">307 </span>  <span class="PreProc">var</span> second-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get second, <span class="PreProc">type</span>
+<span id="L308" class="LineNr">308 </span>  compare *second-type, <span class="Constant">1</span>/number
+<span id="L309" class="LineNr">309 </span>  <span class="Delimiter">{</span>
+<span id="L310" class="LineNr">310 </span>    <span class="PreProc">break-if-=</span>
+<span id="L311" class="LineNr">311 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;second arg for + is not a number&quot;</span>
+<span id="L312" class="LineNr">312 </span>    <span class="PreProc">return</span>
+<span id="L313" class="LineNr">313 </span>  <span class="Delimiter">}</span>
+<span id="L314" class="LineNr">314 </span>  <span class="PreProc">var</span> second-value/<span class="Constant">edx</span>: (addr float) <span class="Special">&lt;-</span> get second, number-data
+<span id="L315" class="LineNr">315 </span>  <span class="muComment"># add</span>
+<span id="L316" class="LineNr">316 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> copy *first-value
+<span id="L317" class="LineNr">317 </span>  result <span class="Special">&lt;-</span> add *second-value
+<span id="L318" class="LineNr">318 </span>  <a href='cell.mu.html#L68'>new-float</a> out, result
+<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="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L321'>lookup-symbol</a></span> sym: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), env-h: (handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L322" class="LineNr">322 </span>  <span class="muComment"># trace sym</span>
+<span id="L323" class="LineNr">323 </span>  <span class="Delimiter">{</span>
+<span id="L324" class="LineNr">324 </span>    <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L325" class="LineNr">325 </span>    <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L326" class="LineNr">326 </span>    <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;look up &quot;</span>
+<span id="L327" class="LineNr">327 </span>    <span class="PreProc">var</span> sym2/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy sym
+<span id="L328" class="LineNr">328 </span>    <span class="PreProc">var</span> sym-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get sym2, text-data
+<span id="L329" class="LineNr">329 </span>    <span class="PreProc">var</span> sym-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *sym-data-ah
+<span id="L330" class="LineNr">330 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> sym-data
+<span id="L331" class="LineNr">331 </span>    <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, sym-data
+<span id="L332" class="LineNr">332 </span>    <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot; in &quot;</span>
+<span id="L333" class="LineNr">333 </span>    <span class="PreProc">var</span> env-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-h
+<span id="L334" class="LineNr">334 </span>    <a href='print.mu.html#L1'>print-cell</a> env-ah, stream, <span class="Constant">0</span>/no-trace
+<span id="L335" class="LineNr">335 </span>    trace trace, <span class="Constant">&quot;eval&quot;</span>, stream
+<span id="L336" class="LineNr">336 </span>  <span class="Delimiter">}</span>
+<span id="L337" class="LineNr">337 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L338" class="LineNr">338 </span>  <span class="PreProc">var</span> _env/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> env-h
+<span id="L339" class="LineNr">339 </span>  <span class="PreProc">var</span> env/<span class="Constant">ebx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _env
+<span id="L340" class="LineNr">340 </span>  <span class="muComment"># if env is not a list, abort</span>
+<span id="L341" class="LineNr">341 </span>  <span class="Delimiter">{</span>
+<span id="L342" class="LineNr">342 </span>    <span class="PreProc">var</span> env-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get env, <span class="PreProc">type</span>
+<span id="L343" class="LineNr">343 </span>    compare *env-type, <span class="Constant">0</span>/pair
+<span id="L344" class="LineNr">344 </span>    <span class="PreProc">break-if-=</span>
+<span id="L345" class="LineNr">345 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;eval found a non-list environment&quot;</span>
+<span id="L346" class="LineNr">346 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L347" class="LineNr">347 </span>    <span class="PreProc">return</span>
+<span id="L348" class="LineNr">348 </span>  <span class="Delimiter">}</span>
+<span id="L349" class="LineNr">349 </span>  <span class="muComment"># if env is nil, look up in globals</span>
+<span id="L350" class="LineNr">350 </span>  <span class="Delimiter">{</span>
+<span id="L351" class="LineNr">351 </span>    <span class="PreProc">var</span> env-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> env
+<span id="L352" class="LineNr">352 </span>    compare env-nil?, <span class="Constant">0</span>/false
+<span id="L353" class="LineNr">353 </span>    <span class="PreProc">break-if-=</span>
+<span id="L354" class="LineNr">354 </span>    <a href='eval.mu.html#L443'>lookup-symbol-in-hardcoded-globals</a> sym, out, trace
+<span id="L355" class="LineNr">355 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L356" class="Folded">356 </span><span class="Folded">+-- 13 lines: # trace &quot;=&gt; &quot; out &quot; (global)&quot; ---------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L369" class="LineNr">369 </span>    <span class="PreProc">return</span>
+<span id="L370" class="LineNr">370 </span>  <span class="Delimiter">}</span>
+<span id="L371" class="LineNr">371 </span>  <span class="muComment"># check car</span>
+<span id="L372" class="LineNr">372 </span>  <span class="PreProc">var</span> env-head-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L373" class="LineNr">373 </span>  <span class="PreProc">var</span> env-head-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-head-storage
+<span id="L374" class="LineNr">374 </span>  <a href='eval.mu.html#L513'>car</a> env, env-head-ah, <span class="Constant">0</span>/no-trace
+<span id="L375" class="LineNr">375 </span>  <span class="PreProc">var</span> _env-head/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *env-head-ah
+<span id="L376" class="LineNr">376 </span>  <span class="PreProc">var</span> env-head/<span class="Constant">ecx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _env-head
+<span id="L377" class="LineNr">377 </span>  <span class="muComment"># if car is not a list, abort</span>
+<span id="L378" class="LineNr">378 </span>  <span class="Delimiter">{</span>
+<span id="L379" class="LineNr">379 </span>    <span class="PreProc">var</span> env-head-type/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get env-head, <span class="PreProc">type</span>
+<span id="L380" class="LineNr">380 </span>    compare *env-head-type, <span class="Constant">0</span>/pair
+<span id="L381" class="LineNr">381 </span>    <span class="PreProc">break-if-=</span>
+<span id="L382" class="LineNr">382 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;environment is not a list of (key . value) pairs&quot;</span>
+<span id="L383" class="LineNr">383 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L384" class="LineNr">384 </span>    <span class="PreProc">return</span>
+<span id="L385" class="LineNr">385 </span>  <span class="Delimiter">}</span>
+<span id="L386" class="LineNr">386 </span>  <span class="muComment"># check key</span>
+<span id="L387" class="LineNr">387 </span>  <span class="PreProc">var</span> curr-key-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L388" class="LineNr">388 </span>  <span class="PreProc">var</span> curr-key-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address curr-key-storage
+<span id="L389" class="LineNr">389 </span>  <a href='eval.mu.html#L513'>car</a> env-head, curr-key-ah, trace
+<span id="L390" class="LineNr">390 </span>  <span class="PreProc">var</span> curr-key/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-key-ah
+<span id="L391" class="LineNr">391 </span>  <span class="muComment"># if key is not a symbol, abort</span>
+<span id="L392" class="LineNr">392 </span>  <span class="Delimiter">{</span>
+<span id="L393" class="LineNr">393 </span>    <span class="PreProc">var</span> curr-key-type/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get curr-key, <span class="PreProc">type</span>
+<span id="L394" class="LineNr">394 </span>    compare *curr-key-type, <span class="Constant">2</span>/symbol
+<span id="L395" class="LineNr">395 </span>    <span class="PreProc">break-if-=</span>
+<span id="L396" class="LineNr">396 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;environment contains a binding for a non-symbol&quot;</span>
+<span id="L397" class="LineNr">397 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L398" class="LineNr">398 </span>    <span class="PreProc">return</span>
+<span id="L399" class="LineNr">399 </span>  <span class="Delimiter">}</span>
+<span id="L400" class="LineNr">400 </span>  <span class="muComment"># if key matches sym, return val</span>
+<span id="L401" class="LineNr">401 </span>  <span class="PreProc">var</span> match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='eval.mu.html#L569'>cell-isomorphic?</a> curr-key, sym, trace
+<span id="L402" class="LineNr">402 </span>  compare match?, <span class="Constant">0</span>/false
+<span id="L403" class="LineNr">403 </span>  <span class="Delimiter">{</span>
+<span id="L404" class="LineNr">404 </span>    <span class="PreProc">break-if-=</span>
+<span id="L405" class="LineNr">405 </span>    <a href='eval.mu.html#L541'>cdr</a> env-head, out, <span class="Constant">0</span>/no-trace
+<span id="L406" class="Folded">406 </span><span class="Folded">+-- 13 lines: # trace &quot;=&gt; &quot; out &quot; (match)&quot; ----------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L419" class="LineNr">419 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L420" class="LineNr">420 </span>    <span class="PreProc">return</span>
+<span id="L421" class="LineNr">421 </span>  <span class="Delimiter">}</span>
+<span id="L422" class="LineNr">422 </span>  <span class="muComment"># otherwise recurse</span>
+<span id="L423" class="LineNr">423 </span>  <span class="PreProc">var</span> env-tail-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L424" class="LineNr">424 </span>  <span class="PreProc">var</span> env-tail-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-tail-storage
+<span id="L425" class="LineNr">425 </span>  <a href='eval.mu.html#L541'>cdr</a> env, env-tail-ah, trace
+<span id="L426" class="LineNr">426 </span>  <a href='eval.mu.html#L321'>lookup-symbol</a> sym, out, *env-tail-ah, trace
+<span id="L427" class="LineNr">427 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L428" class="Folded">428 </span><span class="Folded">+-- 13 lines: # trace &quot;=&gt; &quot; out &quot; (recurse)&quot; --------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L441" class="LineNr">441 </span><span class="Delimiter">}</span>
+<span id="L442" class="LineNr">442 </span>
+<span id="L443" class="LineNr">443 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L443'>lookup-symbol-in-hardcoded-globals</a></span> _sym: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L444" class="LineNr">444 </span>  <span class="PreProc">var</span> sym/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _sym
+<span id="L445" class="LineNr">445 </span>  <span class="PreProc">var</span> sym-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get sym, text-data
+<span id="L446" class="LineNr">446 </span>  <span class="PreProc">var</span> _sym-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *sym-data-ah
+<span id="L447" class="LineNr">447 </span>  <span class="PreProc">var</span> sym-data/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _sym-data
+<span id="L448" class="LineNr">448 </span>  <span class="Delimiter">{</span>
+<span id="L449" class="LineNr">449 </span>    <span class="PreProc">var</span> add?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../109stream-equal.subx.html#L9'>stream-data-equal?</a> sym-data, <span class="Constant">&quot;+&quot;</span>
+<span id="L450" class="LineNr">450 </span>    compare add?, <span class="Constant">0</span>/false
+<span id="L451" class="LineNr">451 </span>    <span class="PreProc">break-if-=</span>
+<span id="L452" class="LineNr">452 </span>    <a href='cell.mu.html#L109'>new-primitive-function</a> out, <span class="Constant">1</span>/add
+<span id="L453" class="LineNr">453 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;global +&quot;</span>
+<span id="L454" class="LineNr">454 </span>    <span class="PreProc">return</span>
+<span id="L455" class="LineNr">455 </span>  <span class="Delimiter">}</span>
+<span id="L456" class="LineNr">456 </span>  <span class="muComment"># otherwise error &quot;unbound symbol: &quot;, sym</span>
+<span id="L457" class="LineNr">457 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L458" class="LineNr">458 </span>  <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L459" class="LineNr">459 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;unbound symbol: &quot;</span>
+<span id="L460" class="LineNr">460 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> sym-data
+<span id="L461" class="LineNr">461 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, sym-data
+<span id="L462" class="LineNr">462 </span>  trace trace, <span class="Constant">&quot;error&quot;</span>, stream
+<span id="L463" class="LineNr">463 </span><span class="Delimiter">}</span>
+<span id="L464" class="LineNr">464 </span>
+<span id="L465" class="LineNr">465 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L465'>test-lookup-symbol-in-env</a></span> <span class="Delimiter">{</span>
+<span id="L466" class="LineNr">466 </span>  <span class="muComment"># tmp = (a . 3)</span>
+<span id="L467" class="LineNr">467 </span>  <span class="PreProc">var</span> val-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L468" class="LineNr">468 </span>  <span class="PreProc">var</span> val-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address val-storage
+<span id="L469" class="LineNr">469 </span>  <a href='cell.mu.html#L55'>new-integer</a> val-ah, <span class="Constant">3</span>
+<span id="L470" class="LineNr">470 </span>  <span class="PreProc">var</span> key-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L471" class="LineNr">471 </span>  <span class="PreProc">var</span> key-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address key-storage
+<span id="L472" class="LineNr">472 </span>  <a href='cell.mu.html#L34'>new-symbol</a> key-ah, <span class="Constant">&quot;a&quot;</span>
+<span id="L473" class="LineNr">473 </span>  <span class="PreProc">var</span> env-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L474" class="LineNr">474 </span>  <span class="PreProc">var</span> env-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-storage
+<span id="L475" class="LineNr">475 </span>  <a href='cell.mu.html#L88'>new-pair</a> env-ah, *key-ah, *val-ah
+<span id="L476" class="LineNr">476 </span>  <span class="muComment"># env = ((a . 3))</span>
+<span id="L477" class="LineNr">477 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L478" class="LineNr">478 </span>  <span class="PreProc">var</span> nil-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L479" class="LineNr">479 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil-ah
+<span id="L480" class="LineNr">480 </span>  <a href='cell.mu.html#L88'>new-pair</a> env-ah, *env-ah, *nil-ah
+<span id="L481" class="LineNr">481 </span>  <span class="muComment"># lookup sym(a) in env tmp</span>
+<span id="L482" class="LineNr">482 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L483" class="LineNr">483 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L484" class="LineNr">484 </span>  <a href='cell.mu.html#L34'>new-symbol</a> tmp-ah, <span class="Constant">&quot;a&quot;</span>
+<span id="L485" class="LineNr">485 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L486" class="LineNr">486 </span>  <a href='eval.mu.html#L321'>lookup-symbol</a> in, tmp-ah, *env-ah, <span class="Constant">0</span>/no-trace
+<span id="L487" class="LineNr">487 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L488" class="LineNr">488 </span>  <span class="PreProc">var</span> result-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get result, <span class="PreProc">type</span>
+<span id="L489" class="LineNr">489 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-type, <span class="Constant">1</span>/number, <span class="Constant">&quot;F - <a href='eval.mu.html#L465'>test-lookup-symbol-in-env</a>/0&quot;</span>
+<span id="L490" class="LineNr">490 </span>  <span class="PreProc">var</span> result-value-addr/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get result, number-data
+<span id="L491" class="LineNr">491 </span>  <span class="PreProc">var</span> result-value/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> convert *result-value-addr
+<span id="L492" class="LineNr">492 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> result-value, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='eval.mu.html#L465'>test-lookup-symbol-in-env</a>/1&quot;</span>
+<span id="L493" class="LineNr">493 </span><span class="Delimiter">}</span>
+<span id="L494" class="LineNr">494 </span>
+<span id="L495" class="LineNr">495 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L495'>test-lookup-symbol-in-hardcoded-globals</a></span> <span class="Delimiter">{</span>
+<span id="L496" class="LineNr">496 </span>  <span class="muComment"># env = nil</span>
+<span id="L497" class="LineNr">497 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L498" class="LineNr">498 </span>  <span class="PreProc">var</span> nil-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L499" class="LineNr">499 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil-ah
+<span id="L500" class="LineNr">500 </span>  <span class="muComment"># lookup sym(a), env</span>
+<span id="L501" class="LineNr">501 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L502" class="LineNr">502 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L503" class="LineNr">503 </span>  <a href='cell.mu.html#L34'>new-symbol</a> tmp-ah, <span class="Constant">&quot;+&quot;</span>
+<span id="L504" class="LineNr">504 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L505" class="LineNr">505 </span>  <a href='eval.mu.html#L321'>lookup-symbol</a> in, tmp-ah, *nil-ah, <span class="Constant">0</span>/no-trace
+<span id="L506" class="LineNr">506 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L507" class="LineNr">507 </span>  <span class="PreProc">var</span> result-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get result, <span class="PreProc">type</span>
+<span id="L508" class="LineNr">508 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-type, <span class="Constant">4</span>/primitive-function, <span class="Constant">&quot;F - <a href='eval.mu.html#L495'>test-lookup-symbol-in-hardcoded-globals</a>/0&quot;</span>
+<span id="L509" class="LineNr">509 </span>  <span class="PreProc">var</span> result-value/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get result, index-data
+<span id="L510" class="LineNr">510 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-value, <span class="Constant">1</span>/add, <span class="Constant">&quot;F - <a href='eval.mu.html#L495'>test-lookup-symbol-in-hardcoded-globals</a>/1&quot;</span>
+<span id="L511" class="LineNr">511 </span><span class="Delimiter">}</span>
+<span id="L512" class="LineNr">512 </span>
+<span id="L513" class="LineNr">513 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L513'>car</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L514" class="LineNr">514 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;car&quot;</span>
+<span id="L515" class="LineNr">515 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L516" class="LineNr">516 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L517" class="LineNr">517 </span>  <span class="muComment"># if in is not a list, abort</span>
+<span id="L518" class="LineNr">518 </span>  <span class="Delimiter">{</span>
+<span id="L519" class="LineNr">519 </span>    <span class="PreProc">var</span> in-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get in, <span class="PreProc">type</span>
+<span id="L520" class="LineNr">520 </span>    compare *in-type, <span class="Constant">0</span>/pair
+<span id="L521" class="LineNr">521 </span>    <span class="PreProc">break-if-=</span>
+<span id="L522" class="LineNr">522 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;car on a non-list&quot;</span>
+<span id="L523" class="LineNr">523 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L524" class="LineNr">524 </span>    <span class="PreProc">return</span>
+<span id="L525" class="LineNr">525 </span>  <span class="Delimiter">}</span>
+<span id="L526" class="LineNr">526 </span>  <span class="muComment"># if in is nil, abort</span>
+<span id="L527" class="LineNr">527 </span>  <span class="Delimiter">{</span>
+<span id="L528" class="LineNr">528 </span>    <span class="PreProc">var</span> in-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> in
+<span id="L529" class="LineNr">529 </span>    compare in-nil?, <span class="Constant">0</span>/false
+<span id="L530" class="LineNr">530 </span>    <span class="PreProc">break-if-=</span>
+<span id="L531" class="LineNr">531 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;car on nil&quot;</span>
+<span id="L532" class="LineNr">532 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L533" class="LineNr">533 </span>    <span class="PreProc">return</span>
+<span id="L534" class="LineNr">534 </span>  <span class="Delimiter">}</span>
+<span id="L535" class="LineNr">535 </span>  <span class="PreProc">var</span> in-left/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get in, left
+<span id="L536" class="LineNr">536 </span>  copy-object in-left, out
+<span id="L537" class="LineNr">537 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L538" class="LineNr">538 </span>  <span class="PreProc">return</span>
+<span id="L539" class="LineNr">539 </span><span class="Delimiter">}</span>
+<span id="L540" class="LineNr">540 </span>
+<span id="L541" class="LineNr">541 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L541'>cdr</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L542" class="LineNr">542 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;cdr&quot;</span>
+<span id="L543" class="LineNr">543 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L544" class="LineNr">544 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L545" class="LineNr">545 </span>  <span class="muComment"># if in is not a list, abort</span>
+<span id="L546" class="LineNr">546 </span>  <span class="Delimiter">{</span>
+<span id="L547" class="LineNr">547 </span>    <span class="PreProc">var</span> in-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get in, <span class="PreProc">type</span>
+<span id="L548" class="LineNr">548 </span>    compare *in-type, <span class="Constant">0</span>/pair
+<span id="L549" class="LineNr">549 </span>    <span class="PreProc">break-if-=</span>
+<span id="L550" class="LineNr">550 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;car on a non-list&quot;</span>
+<span id="L551" class="LineNr">551 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L552" class="LineNr">552 </span>    <span class="PreProc">return</span>
+<span id="L553" class="LineNr">553 </span>  <span class="Delimiter">}</span>
+<span id="L554" class="LineNr">554 </span>  <span class="muComment"># if in is nil, abort</span>
+<span id="L555" class="LineNr">555 </span>  <span class="Delimiter">{</span>
+<span id="L556" class="LineNr">556 </span>    <span class="PreProc">var</span> in-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> in
+<span id="L557" class="LineNr">557 </span>    compare in-nil?, <span class="Constant">0</span>/false
+<span id="L558" class="LineNr">558 </span>    <span class="PreProc">break-if-=</span>
+<span id="L559" class="LineNr">559 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;car on nil&quot;</span>
+<span id="L560" class="LineNr">560 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L561" class="LineNr">561 </span>    <span class="PreProc">return</span>
+<span id="L562" class="LineNr">562 </span>  <span class="Delimiter">}</span>
+<span id="L563" class="LineNr">563 </span>  <span class="PreProc">var</span> in-right/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get in, right
+<span id="L564" class="LineNr">564 </span>  copy-object in-right, out
+<span id="L565" class="LineNr">565 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L566" class="LineNr">566 </span>  <span class="PreProc">return</span>
+<span id="L567" class="LineNr">567 </span><span class="Delimiter">}</span>
+<span id="L568" class="LineNr">568 </span>
+<span id="L569" class="LineNr">569 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L569'>cell-isomorphic?</a></span> _a: (addr <a href='cell.mu.html#L1'>cell</a>), _b: (addr <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L570" class="LineNr">570 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;cell-isomorphic?&quot;</span>
+<span id="L571" class="LineNr">571 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L572" class="LineNr">572 </span>  <span class="PreProc">var</span> a/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _a
+<span id="L573" class="LineNr">573 </span>  <span class="PreProc">var</span> b/<span class="Constant">edi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _b
+<span id="L574" class="LineNr">574 </span>  <span class="muComment"># if types don't match, return false</span>
+<span id="L575" class="LineNr">575 </span>  <span class="PreProc">var</span> a-type-addr/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get a, <span class="PreProc">type</span>
+<span id="L576" class="LineNr">576 </span>  <span class="PreProc">var</span> b-type-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get b, <span class="PreProc">type</span>
+<span id="L577" class="LineNr">577 </span>  <span class="PreProc">var</span> b-type/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *b-type-addr
+<span id="L578" class="LineNr">578 </span>  compare b-type, *a-type-addr
+<span id="L579" class="LineNr">579 </span>  <span class="Delimiter">{</span>
+<span id="L580" class="LineNr">580 </span>    <span class="PreProc">break-if-=</span>
+<span id="L581" class="LineNr">581 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L582" class="LineNr">582 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; false (type)&quot;</span>
+<span id="L583" class="LineNr">583 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L584" class="LineNr">584 </span>  <span class="Delimiter">}</span>
+<span id="L585" class="LineNr">585 </span>  <span class="muComment"># if types are number, compare number-data</span>
+<span id="L586" class="LineNr">586 </span>  <span class="muComment"># TODO: exactly comparing floats is a bad idea</span>
+<span id="L587" class="LineNr">587 </span>  compare b-type, <span class="Constant">1</span>/number
+<span id="L588" class="LineNr">588 </span>  <span class="Delimiter">{</span>
+<span id="L589" class="LineNr">589 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L590" class="LineNr">590 </span>    <span class="PreProc">var</span> a-val-addr/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get a, number-data
+<span id="L591" class="LineNr">591 </span>    <span class="PreProc">var</span> b-val-addr/<span class="Constant">ecx</span>: (addr float) <span class="Special">&lt;-</span> get b, number-data
+<span id="L592" class="LineNr">592 </span>    <span class="PreProc">var</span> a-val/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> copy *a-val-addr
+<span id="L593" class="LineNr">593 </span>    compare a-val, *b-val-addr
+<span id="L594" class="LineNr">594 </span>    <span class="Delimiter">{</span>
+<span id="L595" class="LineNr">595 </span>      <span class="PreProc">break-if-=</span>
+<span id="L596" class="LineNr">596 </span>      <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L597" class="LineNr">597 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; false (numbers)&quot;</span>
+<span id="L598" class="LineNr">598 </span>      <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L599" class="LineNr">599 </span>    <span class="Delimiter">}</span>
+<span id="L600" class="LineNr">600 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L601" class="LineNr">601 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; true (numbers)&quot;</span>
+<span id="L602" class="LineNr">602 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L603" class="LineNr">603 </span>  <span class="Delimiter">}</span>
+<span id="L604" class="LineNr">604 </span>  compare b-type, <span class="Constant">2</span>/symbol
+<span id="L605" class="LineNr">605 </span>  <span class="Delimiter">{</span>
+<span id="L606" class="LineNr">606 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L607" class="LineNr">607 </span>    <span class="PreProc">var</span> b-val-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get b, text-data
+<span id="L608" class="LineNr">608 </span>    <span class="PreProc">var</span> _b-val/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *b-val-ah
+<span id="L609" class="LineNr">609 </span>    <span class="PreProc">var</span> b-val/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _b-val
+<span id="L610" class="LineNr">610 </span>    <span class="PreProc">var</span> a-val-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get a, text-data
+<span id="L611" class="LineNr">611 </span>    <span class="PreProc">var</span> a-val/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *a-val-ah
+<span id="L612" class="LineNr">612 </span>    <span class="PreProc">var</span> tmp-array: (handle array byte)
+<span id="L613" class="LineNr">613 </span>    <span class="PreProc">var</span> tmp-ah/<span class="Constant">edx</span>: (addr handle array byte) <span class="Special">&lt;-</span> address tmp-array
+<span id="L614" class="LineNr">614 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> a-val
+<span id="L615" class="LineNr">615 </span>    <a href='../310copy-bytes.subx.html#L60'>stream-to-array</a> a-val, tmp-ah
+<span id="L616" class="LineNr">616 </span>    <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L617" class="LineNr">617 </span>    <span class="PreProc">var</span> match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../109stream-equal.subx.html#L9'>stream-data-equal?</a> b-val, tmp
+<span id="L618" class="LineNr">618 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L619" class="LineNr">619 </span>    <span class="Delimiter">{</span>
+<span id="L620" class="LineNr">620 </span>      compare match?, <span class="Constant">0</span>/false
+<span id="L621" class="LineNr">621 </span>      <span class="PreProc">break-if-=</span>
+<span id="L622" class="LineNr">622 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; true (symbols)&quot;</span>
+<span id="L623" class="LineNr">623 </span>    <span class="Delimiter">}</span>
+<span id="L624" class="LineNr">624 </span>    <span class="Delimiter">{</span>
+<span id="L625" class="LineNr">625 </span>      compare match?, <span class="Constant">0</span>/false
+<span id="L626" class="LineNr">626 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L627" class="LineNr">627 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; false (symbols)&quot;</span>
+<span id="L628" class="LineNr">628 </span>    <span class="Delimiter">}</span>
+<span id="L629" class="LineNr">629 </span>    <span class="PreProc">return</span> match?
+<span id="L630" class="LineNr">630 </span>  <span class="Delimiter">}</span>
+<span id="L631" class="LineNr">631 </span>  <span class="muComment"># if a is nil, b should be nil</span>
+<span id="L632" class="LineNr">632 </span>  <span class="Delimiter">{</span>
+<span id="L633" class="LineNr">633 </span>    <span class="muComment"># (assumes nil? returns 0 or 1)</span>
+<span id="L634" class="LineNr">634 </span>    <span class="PreProc">var</span> _b-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> b
+<span id="L635" class="LineNr">635 </span>    <span class="PreProc">var</span> b-nil?/<span class="Constant">ecx</span>: boolean <span class="Special">&lt;-</span> copy _b-nil?
+<span id="L636" class="LineNr">636 </span>    <span class="PreProc">var</span> a-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> a
+<span id="L637" class="LineNr">637 </span>    <span class="muComment"># a == nil and b == nil =&gt; return true</span>
+<span id="L638" class="LineNr">638 </span>    <span class="Delimiter">{</span>
+<span id="L639" class="LineNr">639 </span>      compare a-nil?, <span class="Constant">0</span>/false
+<span id="L640" class="LineNr">640 </span>      <span class="PreProc">break-if-=</span>
+<span id="L641" class="LineNr">641 </span>      compare b-nil?, <span class="Constant">0</span>/false
+<span id="L642" class="LineNr">642 </span>      <span class="PreProc">break-if-=</span>
+<span id="L643" class="LineNr">643 </span>      <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L644" class="LineNr">644 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; true (nils)&quot;</span>
+<span id="L645" class="LineNr">645 </span>      <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L646" class="LineNr">646 </span>    <span class="Delimiter">}</span>
+<span id="L647" class="LineNr">647 </span>    <span class="muComment"># a == nil =&gt; return false</span>
+<span id="L648" class="LineNr">648 </span>    <span class="Delimiter">{</span>
+<span id="L649" class="LineNr">649 </span>      compare a-nil?, <span class="Constant">0</span>/false
+<span id="L650" class="LineNr">650 </span>      <span class="PreProc">break-if-=</span>
+<span id="L651" class="LineNr">651 </span>      <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L652" class="LineNr">652 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; false (b != nil)&quot;</span>
+<span id="L653" class="LineNr">653 </span>      <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L654" class="LineNr">654 </span>    <span class="Delimiter">}</span>
+<span id="L655" class="LineNr">655 </span>    <span class="muComment"># b == nil =&gt; return false</span>
+<span id="L656" class="LineNr">656 </span>    <span class="Delimiter">{</span>
+<span id="L657" class="LineNr">657 </span>      compare b-nil?, <span class="Constant">0</span>/false
+<span id="L658" class="LineNr">658 </span>      <span class="PreProc">break-if-=</span>
+<span id="L659" class="LineNr">659 </span>      <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L660" class="LineNr">660 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; false (a != nil)&quot;</span>
+<span id="L661" class="LineNr">661 </span>      <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L662" class="LineNr">662 </span>    <span class="Delimiter">}</span>
+<span id="L663" class="LineNr">663 </span>  <span class="Delimiter">}</span>
+<span id="L664" class="LineNr">664 </span>  <span class="muComment"># a and b are pairs</span>
+<span id="L665" class="LineNr">665 </span>  <span class="PreProc">var</span> a-tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L666" class="LineNr">666 </span>  <span class="PreProc">var</span> a-tmp-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address a-tmp-storage
+<span id="L667" class="LineNr">667 </span>  <span class="PreProc">var</span> b-tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L668" class="LineNr">668 </span>  <span class="PreProc">var</span> b-tmp-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address b-tmp-storage
+<span id="L669" class="LineNr">669 </span>  <span class="muComment"># if cars aren't equal, return false</span>
+<span id="L670" class="LineNr">670 </span>  <a href='eval.mu.html#L513'>car</a> a, a-tmp-ah, trace
+<span id="L671" class="LineNr">671 </span>  <a href='eval.mu.html#L513'>car</a> b, b-tmp-ah, trace
+<span id="L672" class="LineNr">672 </span>  <span class="Delimiter">{</span>
+<span id="L673" class="LineNr">673 </span>    <span class="PreProc">var</span> _a-tmp/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *a-tmp-ah
+<span id="L674" class="LineNr">674 </span>    <span class="PreProc">var</span> a-tmp/<span class="Constant">ecx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _a-tmp
+<span id="L675" class="LineNr">675 </span>    <span class="PreProc">var</span> b-tmp/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *b-tmp-ah
+<span id="L676" class="LineNr">676 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='eval.mu.html#L569'>cell-isomorphic?</a> a-tmp, b-tmp, trace
+<span id="L677" class="LineNr">677 </span>    compare result, <span class="Constant">0</span>/false
+<span id="L678" class="LineNr">678 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L679" class="LineNr">679 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L680" class="LineNr">680 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;eval&quot;</span>, <span class="Constant">&quot;=&gt; false (<a href='eval.mu.html#L513'>car</a> mismatch)&quot;</span>
+<span id="L681" class="LineNr">681 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L682" class="LineNr">682 </span>  <span class="Delimiter">}</span>
+<span id="L683" class="LineNr">683 </span>  <span class="muComment"># recurse on cdrs</span>
+<span id="L684" class="LineNr">684 </span>  <a href='eval.mu.html#L541'>cdr</a> a, a-tmp-ah, trace
+<span id="L685" class="LineNr">685 </span>  <a href='eval.mu.html#L541'>cdr</a> b, b-tmp-ah, trace
+<span id="L686" class="LineNr">686 </span>  <span class="PreProc">var</span> _a-tmp/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *a-tmp-ah
+<span id="L687" class="LineNr">687 </span>  <span class="PreProc">var</span> a-tmp/<span class="Constant">ecx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _a-tmp
+<span id="L688" class="LineNr">688 </span>  <span class="PreProc">var</span> b-tmp/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *b-tmp-ah
+<span id="L689" class="LineNr">689 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='eval.mu.html#L569'>cell-isomorphic?</a> a-tmp, b-tmp, trace
+<span id="L690" class="LineNr">690 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L691" class="LineNr">691 </span>  <span class="PreProc">return</span> result
+<span id="L692" class="LineNr">692 </span><span class="Delimiter">}</span>
+<span id="L693" class="LineNr">693 </span>
+<span id="L694" class="LineNr">694 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='eval.mu.html#L694'>fn?</a></span> _x: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L695" class="LineNr">695 </span>  <span class="PreProc">var</span> x/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _x
+<span id="L696" class="LineNr">696 </span>  <span class="PreProc">var</span> <span class="PreProc">type</span>/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get x, <span class="PreProc">type</span>
+<span id="L697" class="LineNr">697 </span>  compare *<span class="PreProc">type</span>, <span class="Constant">2</span>/symbol
+<span id="L698" class="LineNr">698 </span>  <span class="Delimiter">{</span>
+<span id="L699" class="LineNr">699 </span>    <span class="PreProc">break-if-=</span>
+<span id="L700" class="LineNr">700 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L701" class="LineNr">701 </span>  <span class="Delimiter">}</span>
+<span id="L702" class="LineNr">702 </span>  <span class="PreProc">var</span> contents-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get x, text-data
+<span id="L703" class="LineNr">703 </span>  <span class="PreProc">var</span> contents/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *contents-ah
+<span id="L704" class="LineNr">704 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../109stream-equal.subx.html#L9'>stream-data-equal?</a> contents, <span class="Constant">&quot;fn&quot;</span>
+<span id="L705" class="LineNr">705 </span>  <span class="PreProc">return</span> result
+<span id="L706" class="LineNr">706 </span><span class="Delimiter">}</span>
+<span id="L707" class="LineNr">707 </span>
+<span id="L708" class="LineNr">708 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L708'>test-evaluate-is-well-behaved</a></span> <span class="Delimiter">{</span>
+<span id="L709" class="LineNr">709 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L710" class="LineNr">710 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L711" class="LineNr">711 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0</span>/visible  <span class="muComment"># we don't use trace UI</span>
+<span id="L712" class="LineNr">712 </span>  <span class="muComment"># env = nil</span>
+<span id="L713" class="LineNr">713 </span>  <span class="PreProc">var</span> env-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L714" class="LineNr">714 </span>  <span class="PreProc">var</span> env-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-storage
+<span id="L715" class="LineNr">715 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> env-ah
+<span id="L716" class="LineNr">716 </span>  <span class="muComment"># eval sym(a), nil env</span>
+<span id="L717" class="LineNr">717 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L718" class="LineNr">718 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L719" class="LineNr">719 </span>  <a href='cell.mu.html#L34'>new-symbol</a> tmp-ah, <span class="Constant">&quot;a&quot;</span>
+<span id="L720" class="LineNr">720 </span>  <a href='eval.mu.html#L3'>evaluate</a> tmp-ah, tmp-ah, *env-ah, t
+<span id="L721" class="LineNr">721 </span>  <span class="muComment"># doesn't die</span>
+<span id="L722" class="LineNr">722 </span>  <a href='trace.mu.html#L175'>check-trace-contains</a> t, <span class="Constant">&quot;error&quot;</span>, <span class="Constant">&quot;unbound symbol: a&quot;</span>, <span class="Constant">&quot;F - test-evaluate-is-well-behaved&quot;</span>
+<span id="L723" class="LineNr">723 </span><span class="Delimiter">}</span>
+<span id="L724" class="LineNr">724 </span>
+<span id="L725" class="LineNr">725 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L725'>test-evaluate-number</a></span> <span class="Delimiter">{</span>
+<span id="L726" class="LineNr">726 </span>  <span class="muComment"># env = nil</span>
+<span id="L727" class="LineNr">727 </span>  <span class="PreProc">var</span> env-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L728" class="LineNr">728 </span>  <span class="PreProc">var</span> env-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-storage
+<span id="L729" class="LineNr">729 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> env-ah
+<span id="L730" class="LineNr">730 </span>  <span class="muComment"># tmp = 3</span>
+<span id="L731" class="LineNr">731 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L732" class="LineNr">732 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L733" class="LineNr">733 </span>  <a href='cell.mu.html#L55'>new-integer</a> tmp-ah, <span class="Constant">3</span>
+<span id="L734" class="LineNr">734 </span>  <a href='eval.mu.html#L3'>evaluate</a> tmp-ah, tmp-ah, *env-ah, <span class="Constant">0</span>/no-trace
+<span id="L735" class="LineNr">735 </span>  <span class="muComment">#</span>
+<span id="L736" class="LineNr">736 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L737" class="LineNr">737 </span>  <span class="PreProc">var</span> result-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get result, <span class="PreProc">type</span>
+<span id="L738" class="LineNr">738 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-type, <span class="Constant">1</span>/number, <span class="Constant">&quot;F - <a href='eval.mu.html#L725'>test-evaluate-number</a>/0&quot;</span>
+<span id="L739" class="LineNr">739 </span>  <span class="PreProc">var</span> result-value-addr/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get result, number-data
+<span id="L740" class="LineNr">740 </span>  <span class="PreProc">var</span> result-value/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> convert *result-value-addr
+<span id="L741" class="LineNr">741 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> result-value, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='eval.mu.html#L725'>test-evaluate-number</a>/1&quot;</span>
+<span id="L742" class="LineNr">742 </span><span class="Delimiter">}</span>
+<span id="L743" class="LineNr">743 </span>
+<span id="L744" class="LineNr">744 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L744'>test-evaluate-symbol</a></span> <span class="Delimiter">{</span>
+<span id="L745" class="LineNr">745 </span>  <span class="muComment"># tmp = (a . 3)</span>
+<span id="L746" class="LineNr">746 </span>  <span class="PreProc">var</span> val-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L747" class="LineNr">747 </span>  <span class="PreProc">var</span> val-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address val-storage
+<span id="L748" class="LineNr">748 </span>  <a href='cell.mu.html#L55'>new-integer</a> val-ah, <span class="Constant">3</span>
+<span id="L749" class="LineNr">749 </span>  <span class="PreProc">var</span> key-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L750" class="LineNr">750 </span>  <span class="PreProc">var</span> key-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address key-storage
+<span id="L751" class="LineNr">751 </span>  <a href='cell.mu.html#L34'>new-symbol</a> key-ah, <span class="Constant">&quot;a&quot;</span>
+<span id="L752" class="LineNr">752 </span>  <span class="PreProc">var</span> env-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L753" class="LineNr">753 </span>  <span class="PreProc">var</span> env-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address env-storage
+<span id="L754" class="LineNr">754 </span>  <a href='cell.mu.html#L88'>new-pair</a> env-ah, *key-ah, *val-ah
+<span id="L755" class="LineNr">755 </span>  <span class="muComment"># env = ((a . 3))</span>
+<span id="L756" class="LineNr">756 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L757" class="LineNr">757 </span>  <span class="PreProc">var</span> nil-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L758" class="LineNr">758 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil-ah
+<span id="L759" class="LineNr">759 </span>  <a href='cell.mu.html#L88'>new-pair</a> env-ah, *env-ah, *nil-ah
+<span id="L760" class="LineNr">760 </span>  <span class="muComment"># eval sym(a), env</span>
+<span id="L761" class="LineNr">761 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L762" class="LineNr">762 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L763" class="LineNr">763 </span>  <a href='cell.mu.html#L34'>new-symbol</a> tmp-ah, <span class="Constant">&quot;a&quot;</span>
+<span id="L764" class="LineNr">764 </span>  <a href='eval.mu.html#L3'>evaluate</a> tmp-ah, tmp-ah, *env-ah, <span class="Constant">0</span>/no-trace
+<span id="L765" class="LineNr">765 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L766" class="LineNr">766 </span>  <span class="PreProc">var</span> result-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get result, <span class="PreProc">type</span>
+<span id="L767" class="LineNr">767 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-type, <span class="Constant">1</span>/number, <span class="Constant">&quot;F - <a href='eval.mu.html#L744'>test-evaluate-symbol</a>/0&quot;</span>
+<span id="L768" class="LineNr">768 </span>  <span class="PreProc">var</span> result-value-addr/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get result, number-data
+<span id="L769" class="LineNr">769 </span>  <span class="PreProc">var</span> result-value/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> convert *result-value-addr
+<span id="L770" class="LineNr">770 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> result-value, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='eval.mu.html#L744'>test-evaluate-symbol</a>/1&quot;</span>
+<span id="L771" class="LineNr">771 </span><span class="Delimiter">}</span>
+<span id="L772" class="LineNr">772 </span>
+<span id="L773" class="LineNr">773 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L773'>test-evaluate-primitive-function</a></span> <span class="Delimiter">{</span>
+<span id="L774" class="LineNr">774 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L775" class="LineNr">775 </span>  <span class="PreProc">var</span> nil-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L776" class="LineNr">776 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil-ah
+<span id="L777" class="LineNr">777 </span>  <span class="PreProc">var</span> add-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L778" class="LineNr">778 </span>  <span class="PreProc">var</span> add-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address add-storage
+<span id="L779" class="LineNr">779 </span>  <a href='cell.mu.html#L34'>new-symbol</a> add-ah, <span class="Constant">&quot;+&quot;</span>
+<span id="L780" class="LineNr">780 </span>  <span class="muComment"># eval +, nil env</span>
+<span id="L781" class="LineNr">781 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L782" class="LineNr">782 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L783" class="LineNr">783 </span>  <a href='eval.mu.html#L3'>evaluate</a> add-ah, tmp-ah, *nil-ah, <span class="Constant">0</span>/no-trace
+<span id="L784" class="LineNr">784 </span>  <span class="muComment">#</span>
+<span id="L785" class="LineNr">785 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L786" class="LineNr">786 </span>  <span class="PreProc">var</span> result-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get result, <span class="PreProc">type</span>
+<span id="L787" class="LineNr">787 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-type, <span class="Constant">4</span>/primitive-function, <span class="Constant">&quot;F - <a href='eval.mu.html#L773'>test-evaluate-primitive-function</a>/0&quot;</span>
+<span id="L788" class="LineNr">788 </span>  <span class="PreProc">var</span> result-value/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get result, index-data
+<span id="L789" class="LineNr">789 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-value, <span class="Constant">1</span>/add, <span class="Constant">&quot;F - <a href='eval.mu.html#L773'>test-evaluate-primitive-function</a>/1&quot;</span>
+<span id="L790" class="LineNr">790 </span><span class="Delimiter">}</span>
+<span id="L791" class="LineNr">791 </span>
+<span id="L792" class="LineNr">792 </span><span class="PreProc">fn</span> <span class="muTest"><a href='eval.mu.html#L792'>test-evaluate-primitive-function-call</a></span> <span class="Delimiter">{</span>
+<span id="L793" class="LineNr">793 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L794" class="LineNr">794 </span>  <span class="PreProc">var</span> t/<span class="Constant">edi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L795" class="LineNr">795 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x100</span>, <span class="Constant">0</span>/visible  <span class="muComment"># we don't use trace UI</span>
+<span id="L796" class="LineNr">796 </span>  <span class="muComment">#</span>
+<span id="L797" class="LineNr">797 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L798" class="LineNr">798 </span>  <span class="PreProc">var</span> nil-ah/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L799" class="LineNr">799 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil-ah
+<span id="L800" class="LineNr">800 </span>  <span class="PreProc">var</span> one-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L801" class="LineNr">801 </span>  <span class="PreProc">var</span> one-ah/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address one-storage
+<span id="L802" class="LineNr">802 </span>  <a href='cell.mu.html#L55'>new-integer</a> one-ah, <span class="Constant">1</span>
+<span id="L803" class="LineNr">803 </span>  <span class="PreProc">var</span> add-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L804" class="LineNr">804 </span>  <span class="PreProc">var</span> add-ah/<span class="Constant">ebx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address add-storage
+<span id="L805" class="LineNr">805 </span>  <a href='cell.mu.html#L34'>new-symbol</a> add-ah, <span class="Constant">&quot;+&quot;</span>
+<span id="L806" class="LineNr">806 </span>  <span class="muComment"># eval (+ 1 1), nil env</span>
+<span id="L807" class="LineNr">807 </span>  <span class="PreProc">var</span> tmp-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L808" class="LineNr">808 </span>  <span class="PreProc">var</span> tmp-ah/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tmp-storage
+<span id="L809" class="LineNr">809 </span>  <a href='cell.mu.html#L88'>new-pair</a> tmp-ah, *one-ah, *nil-ah
+<span id="L810" class="LineNr">810 </span>  <a href='cell.mu.html#L88'>new-pair</a> tmp-ah, *one-ah, *tmp-ah
+<span id="L811" class="LineNr">811 </span>  <a href='cell.mu.html#L88'>new-pair</a> tmp-ah, *add-ah, *tmp-ah
+<span id="L812" class="LineNr">812 </span><span class="CommentedCode">#?   dump-cell tmp-ah</span>
+<span id="L813" class="LineNr">813 </span>  <a href='eval.mu.html#L3'>evaluate</a> tmp-ah, tmp-ah, *nil-ah, t
+<span id="L814" class="LineNr">814 </span><span class="CommentedCode">#?   dump-trace t</span>
+<span id="L815" class="LineNr">815 </span>  <span class="muComment">#</span>
+<span id="L816" class="LineNr">816 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *tmp-ah
+<span id="L817" class="LineNr">817 </span>  <span class="PreProc">var</span> result-type/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get result, <span class="PreProc">type</span>
+<span id="L818" class="LineNr">818 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *result-type, <span class="Constant">1</span>/number, <span class="Constant">&quot;F - <a href='eval.mu.html#L792'>test-evaluate-primitive-function-call</a>/0&quot;</span>
+<span id="L819" class="LineNr">819 </span>  <span class="PreProc">var</span> result-value-addr/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get result, number-data
+<span id="L820" class="LineNr">820 </span>  <span class="PreProc">var</span> result-value/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> convert *result-value-addr
+<span id="L821" class="LineNr">821 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> result-value, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='eval.mu.html#L792'>test-evaluate-primitive-function-call</a>/1&quot;</span>
+<span id="L822" class="LineNr">822 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/gap-buffer.mu.html b/html/shell/gap-buffer.mu.html
new file mode 100644
index 00000000..10cc1f76
--- /dev/null
+++ b/html/shell/gap-buffer.mu.html
@@ -0,0 +1,844 @@
+<!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 - shell/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; }
+.PreProc { color: #c000c0; }
+.Special { color: #ff6060; }
+.LineNr { }
+.Constant { color: #008787; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.muComment { color: #005faf; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/gap-buffer.mu'>https://github.com/akkartik/mu/blob/main/shell/gap-buffer.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># primitive for editing a single word</span>
+<span id="L2" class="LineNr">  2 </span>
+<span id="L3" class="LineNr">  3 </span><span class="PreProc">type</span> <a href='gap-buffer.mu.html#L3'>gap-buffer</a> <span class="Delimiter">{</span>
+<span id="L4" class="LineNr">  4 </span>  left: <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>
+<span id="L5" class="LineNr">  5 </span>  right: <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>
+<span id="L6" class="LineNr">  6 </span>  <span class="muComment"># some fields for scanning incrementally through a gap-buffer</span>
+<span id="L7" class="LineNr">  7 </span>  left-read-index: int
+<span id="L8" class="LineNr">  8 </span>  right-read-index: int
+<span id="L9" class="LineNr">  9 </span><span class="Delimiter">}</span>
+<span id="L10" class="LineNr"> 10 </span>
+<span id="L11" class="LineNr"> 11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), max-word-size: int <span class="Delimiter">{</span>
+<span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L13" class="LineNr"> 13 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L14" class="LineNr"> 14 </span>  <a href='grapheme-stack.mu.html#L8'>initialize-grapheme-stack</a> left, max-word-size
+<span id="L15" class="LineNr"> 15 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L16" class="LineNr"> 16 </span>  <a href='grapheme-stack.mu.html#L8'>initialize-grapheme-stack</a> right, max-word-size
+<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">}</span>
+<span id="L18" class="LineNr"> 18 </span>
+<span id="L19" class="LineNr"> 19 </span><span class="muComment"># just for tests</span>
+<span id="L20" class="LineNr"> 20 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L21" class="LineNr"> 21 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> self, <span class="Constant">0x10</span>/max-word-size
+<span id="L22" class="LineNr"> 22 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x10</span>/max-word-size)
+<span id="L23" class="LineNr"> 23 </span>  <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L24" class="LineNr"> 24 </span>  <a href='../108write.subx.html#L11'>write</a> stream, s
+<span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">{</span>
+<span id="L26" class="LineNr"> 26 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> stream
+<span id="L27" class="LineNr"> 27 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L28" class="LineNr"> 28 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L29" class="LineNr"> 29 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L30" class="LineNr"> 30 </span>    <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> self, g
+<span id="L31" class="LineNr"> 31 </span>    <span class="PreProc">loop</span>
+<span id="L32" class="LineNr"> 32 </span>  <span class="Delimiter">}</span>
+<span id="L33" class="LineNr"> 33 </span><span class="Delimiter">}</span>
+<span id="L34" class="LineNr"> 34 </span>
+<span id="L35" class="LineNr"> 35 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L35'>emit-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L37" class="LineNr"> 37 </span>  <a href='../106stream.subx.html#L20'>clear-stream</a> out
+<span id="L38" class="LineNr"> 38 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L39" class="LineNr"> 39 </span>  <a href='gap-buffer.mu.html#L45'>emit-stack-from-bottom</a> left, out
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L41" class="LineNr"> 41 </span>  <a href='gap-buffer.mu.html#L63'>emit-stack-from-top</a> right, out
+<span id="L42" class="LineNr"> 42 </span><span class="Delimiter">}</span>
+<span id="L43" class="LineNr"> 43 </span>
+<span id="L44" class="LineNr"> 44 </span><span class="muComment"># dump stack from bottom to top</span>
+<span id="L45" class="LineNr"> 45 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L45'>emit-stack-from-bottom</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), out: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L46" class="LineNr"> 46 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L47" class="LineNr"> 47 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L49" class="LineNr"> 49 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="Delimiter">{</span>
+<span id="L53" class="LineNr"> 53 </span>    compare i, *top-addr
+<span id="L54" class="LineNr"> 54 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L55" class="LineNr"> 55 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L56" class="LineNr"> 56 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out, *g
+<span id="L57" class="LineNr"> 57 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L58" class="LineNr"> 58 </span>    <span class="PreProc">loop</span>
+<span id="L59" class="LineNr"> 59 </span>  <span class="Delimiter">}</span>
+<span id="L60" class="LineNr"> 60 </span><span class="Delimiter">}</span>
+<span id="L61" class="LineNr"> 61 </span>
+<span id="L62" class="LineNr"> 62 </span><span class="muComment"># dump stack from top to bottom</span>
+<span id="L63" class="LineNr"> 63 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L63'>emit-stack-from-top</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), out: (addr stream byte) <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='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L69" class="LineNr"> 69 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L70" class="LineNr"> 70 </span>  i <span class="Special">&lt;-</span> decrement
+<span id="L71" class="LineNr"> 71 </span>  <span class="Delimiter">{</span>
+<span id="L72" class="LineNr"> 72 </span>    compare i, <span class="Constant">0</span>
+<span id="L73" class="LineNr"> 73 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L74" class="LineNr"> 74 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L75" class="LineNr"> 75 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out, *g
+<span id="L76" class="LineNr"> 76 </span>    i <span class="Special">&lt;-</span> decrement
+<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>
+<span id="L80" class="LineNr"> 80 </span>
+<span id="L81" class="LineNr"> 81 </span><span class="muComment"># We implicitly render everything editable in a single color, and assume the</span>
+<span id="L82" class="LineNr"> 82 </span><span class="muComment"># cursor is a single other color.</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-wrapping-right-then-down</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _gap: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), xmin: int, ymin: int, xmax: int, ymax: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <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#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _gap
+<span id="L85" class="LineNr"> 85 </span>  <span class="PreProc">var</span> left/<span class="Constant">edx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get gap, left
+<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L87" class="LineNr"> 87 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L88" class="LineNr"> 88 </span>  x2, y2 <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L86'>render-stack-from-bottom-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, left, xmin, ymin, xmax, ymax, xmin, ymin
+<span id="L89" class="LineNr"> 89 </span>  <span class="PreProc">var</span> right/<span class="Constant">edx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get gap, right
+<span id="L90" class="LineNr"> 90 </span>  x2, y2 <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L123'>render-stack-from-top-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, right, xmin, ymin, xmax, ymax, x2, y2, render-cursor?
+<span id="L91" class="LineNr"> 91 </span>  <span class="muComment"># decide whether we still need to print a cursor</span>
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> bg/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L93" class="LineNr"> 93 </span>  compare render-cursor?, <span class="Constant">0</span>/false
+<span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">{</span>
+<span id="L95" class="LineNr"> 95 </span>    <span class="PreProc">break-if-=</span>
+<span id="L96" class="LineNr"> 96 </span>    <span class="muComment"># if the right side is empty, grapheme stack didn't print the cursor</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="PreProc">var</span> empty?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L22'>grapheme-stack-empty?</a> right
+<span id="L98" class="LineNr"> 98 </span>    compare empty?, <span class="Constant">0</span>/false
+<span id="L99" class="LineNr"> 99 </span>    <span class="PreProc">break-if-=</span>
+<span id="L100" class="LineNr">100 </span>    bg <span class="Special">&lt;-</span> copy <span class="Constant">7</span>/cursor
+<span id="L101" class="LineNr">101 </span>  <span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </span>  <span class="muComment"># print a grapheme either way so that cursor position doesn't affect printed width</span>
+<span id="L103" class="LineNr">103 </span>  <span class="PreProc">var</span> space/<span class="Constant">edx</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0x20</span>
+<span id="L104" class="LineNr">104 </span>  x2, y2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L141'>render-grapheme</a> <a href='../500text-screen.mu.html#L9'>screen</a>, space, xmin, ymin, xmax, ymax, x2, y2, <span class="Constant">3</span>/fg=cyan, bg
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">return</span> x2, y2
+<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'>render-gap-buffer</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), gap: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), x: int, y: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> _width/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L110" class="LineNr">110 </span>  <span class="PreProc">var</span> _height/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L111" class="LineNr">111 </span>  _width, _height <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L50'>screen-size</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L112" class="LineNr">112 </span>  <span class="PreProc">var</span> width/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy _width
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">var</span> height/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _height
+<span id="L114" class="LineNr">114 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L115" class="LineNr">115 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L116" class="LineNr">116 </span>  x2, y2 <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L83'>render-gap-buffer-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gap, x, y, width, height, render-cursor?
+<span id="L117" class="LineNr">117 </span>  <span class="PreProc">return</span> x2  <span class="muComment"># y2? yolo</span>
+<span id="L118" class="LineNr">118 </span><span class="Delimiter">}</span>
+<span id="L119" class="LineNr">119 </span>
+<span id="L120" class="LineNr">120 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L120'>gap-buffer-length</a></span> _gap: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L121" class="LineNr">121 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _gap
+<span id="L122" class="LineNr">122 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get gap, left
+<span id="L123" class="LineNr">123 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get left, top
+<span id="L124" class="LineNr">124 </span>  <span class="PreProc">var</span> left-length/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *tmp
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> right/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get gap, right
+<span id="L126" class="LineNr">126 </span>  tmp <span class="Special">&lt;-</span> get right, top
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy *tmp
+<span id="L128" class="LineNr">128 </span>  result <span class="Special">&lt;-</span> add left-length
+<span id="L129" class="LineNr">129 </span>  <span class="PreProc">return</span> result
+<span id="L130" class="LineNr">130 </span><span class="Delimiter">}</span>
+<span id="L131" class="LineNr">131 </span>
+<span id="L132" class="LineNr">132 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), g: grapheme <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='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L135" class="LineNr">135 </span>  <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> left, g
+<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='gap-buffer.mu.html#L138'>gap-to-start</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L139" class="LineNr">139 </span>  <span class="Delimiter">{</span>
+<span id="L140" class="LineNr">140 </span>    <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L182'>gap-left</a> self
+<span id="L141" class="LineNr">141 </span>    compare curr, <span class="Constant">-1</span>
+<span id="L142" class="LineNr">142 </span>    <span class="PreProc">loop-if-!=</span>
+<span id="L143" class="LineNr">143 </span>  <span class="Delimiter">}</span>
+<span id="L144" class="LineNr">144 </span><span class="Delimiter">}</span>
+<span id="L145" class="LineNr">145 </span>
+<span id="L146" class="LineNr">146 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L146'>gap-to-end</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <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> curr/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L168'>gap-right</a> self
+<span id="L149" class="LineNr">149 </span>    compare curr, <span class="Constant">-1</span>
+<span id="L150" class="LineNr">150 </span>    <span class="PreProc">loop-if-!=</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-at-start?</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L155" class="LineNr">155 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L156" class="LineNr">156 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L157" class="LineNr">157 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L22'>grapheme-stack-empty?</a> left
+<span id="L158" class="LineNr">158 </span>  <span class="PreProc">return</span> result
+<span id="L159" class="LineNr">159 </span><span class="Delimiter">}</span>
+<span id="L160" class="LineNr">160 </span>
+<span id="L161" class="LineNr">161 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L161'>gap-at-end?</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L162" class="LineNr">162 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L163" class="LineNr">163 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L164" class="LineNr">164 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L22'>grapheme-stack-empty?</a> right
+<span id="L165" class="LineNr">165 </span>  <span class="PreProc">return</span> result
+<span id="L166" class="LineNr">166 </span><span class="Delimiter">}</span>
+<span id="L167" class="LineNr">167 </span>
+<span id="L168" class="LineNr">168 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L168'>gap-right</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L169" class="LineNr">169 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L170" class="LineNr">170 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L171" class="LineNr">171 </span>  <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L172" class="LineNr">172 </span>  g <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L51'>pop-grapheme-stack</a> right
+<span id="L173" class="LineNr">173 </span>  compare g, <span class="Constant">-1</span>
+<span id="L174" class="LineNr">174 </span>  <span class="Delimiter">{</span>
+<span id="L175" class="LineNr">175 </span>    <span class="PreProc">break-if-=</span>
+<span id="L176" class="LineNr">176 </span>    <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L177" class="LineNr">177 </span>    <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> left, g
+<span id="L178" class="LineNr">178 </span>  <span class="Delimiter">}</span>
+<span id="L179" class="LineNr">179 </span>  <span class="PreProc">return</span> g
+<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='gap-buffer.mu.html#L182'>gap-left</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L183" class="LineNr">183 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L185" class="LineNr">185 </span>  <span class="Delimiter">{</span>
+<span id="L186" class="LineNr">186 </span>    <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L187" class="LineNr">187 </span>    g <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L51'>pop-grapheme-stack</a> left
+<span id="L188" class="LineNr">188 </span>  <span class="Delimiter">}</span>
+<span id="L189" class="LineNr">189 </span>  compare g, <span class="Constant">-1</span>
+<span id="L190" class="LineNr">190 </span>  <span class="Delimiter">{</span>
+<span id="L191" class="LineNr">191 </span>    <span class="PreProc">break-if-=</span>
+<span id="L192" class="LineNr">192 </span>    <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L193" class="LineNr">193 </span>    <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> right, g
+<span id="L194" class="LineNr">194 </span>  <span class="Delimiter">}</span>
+<span id="L195" class="LineNr">195 </span>  <span class="PreProc">return</span> g
+<span id="L196" class="LineNr">196 </span><span class="Delimiter">}</span>
+<span id="L197" class="LineNr">197 </span>
+<span id="L198" class="LineNr">198 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L198'>index-of-gap</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L199" class="LineNr">199 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L200" class="LineNr">200 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L201" class="LineNr">201 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get left, top
+<span id="L202" class="LineNr">202 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L203" class="LineNr">203 </span>  <span class="PreProc">return</span> result
+<span id="L204" class="LineNr">204 </span><span class="Delimiter">}</span>
+<span id="L205" class="LineNr">205 </span>
+<span id="L206" class="LineNr">206 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L206'>first-grapheme-in-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L208" class="LineNr">208 </span>  <span class="muComment"># try to read from left</span>
+<span id="L209" class="LineNr">209 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get left, top
+<span id="L211" class="LineNr">211 </span>  compare *top-addr, <span class="Constant">0</span>
+<span id="L212" class="LineNr">212 </span>  <span class="Delimiter">{</span>
+<span id="L213" class="LineNr">213 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L214" class="LineNr">214 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get left, data
+<span id="L215" class="LineNr">215 </span>    <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L216" class="LineNr">216 </span>    <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, <span class="Constant">0</span>
+<span id="L217" class="LineNr">217 </span>    <span class="PreProc">return</span> *result-addr
+<span id="L218" class="LineNr">218 </span>  <span class="Delimiter">}</span>
+<span id="L219" class="LineNr">219 </span>  <span class="muComment"># try to read from right</span>
+<span id="L220" class="LineNr">220 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L221" class="LineNr">221 </span>  top-addr <span class="Special">&lt;-</span> get right, top
+<span id="L222" class="LineNr">222 </span>  compare *top-addr, <span class="Constant">0</span>
+<span id="L223" class="LineNr">223 </span>  <span class="Delimiter">{</span>
+<span id="L224" class="LineNr">224 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L225" class="LineNr">225 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get right, data
+<span id="L226" class="LineNr">226 </span>    <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L227" class="LineNr">227 </span>    <span class="PreProc">var</span> top/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L228" class="LineNr">228 </span>    top <span class="Special">&lt;-</span> decrement
+<span id="L229" class="LineNr">229 </span>    <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, top
+<span id="L230" class="LineNr">230 </span>    <span class="PreProc">return</span> *result-addr
+<span id="L231" class="LineNr">231 </span>  <span class="Delimiter">}</span>
+<span id="L232" class="LineNr">232 </span>  <span class="muComment"># give up</span>
+<span id="L233" class="LineNr">233 </span>  <span class="PreProc">return</span> <span class="Constant">-1</span>
+<span id="L234" class="LineNr">234 </span><span class="Delimiter">}</span>
+<span id="L235" class="LineNr">235 </span>
+<span id="L236" class="LineNr">236 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L236'>grapheme-before-cursor-in-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L237" class="LineNr">237 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L238" class="LineNr">238 </span>  <span class="muComment"># try to read from left</span>
+<span id="L239" class="LineNr">239 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L240" class="LineNr">240 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get left, top
+<span id="L241" class="LineNr">241 </span>  compare *top-addr, <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">break-if-&lt;=</span>
+<span id="L244" class="LineNr">244 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L51'>pop-grapheme-stack</a> left
+<span id="L245" class="LineNr">245 </span>    <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> left, result
+<span id="L246" class="LineNr">246 </span>    <span class="PreProc">return</span> result
+<span id="L247" class="LineNr">247 </span>  <span class="Delimiter">}</span>
+<span id="L248" class="LineNr">248 </span>  <span class="muComment"># give up</span>
+<span id="L249" class="LineNr">249 </span>  <span class="PreProc">return</span> <span class="Constant">-1</span>
+<span id="L250" class="LineNr">250 </span><span class="Delimiter">}</span>
+<span id="L251" class="LineNr">251 </span>
+<span id="L252" class="LineNr">252 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L252'>delete-before-gap</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L254" class="LineNr">254 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L255" class="LineNr">255 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L51'>pop-grapheme-stack</a> left
+<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="muFunction"><a href='gap-buffer.mu.html#L258'>pop-after-gap</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L259" class="LineNr">259 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L260" class="LineNr">260 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L261" class="LineNr">261 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L51'>pop-grapheme-stack</a> right
+<span id="L262" class="LineNr">262 </span>  <span class="PreProc">return</span> result
+<span id="L263" class="LineNr">263 </span><span class="Delimiter">}</span>
+<span id="L264" class="LineNr">264 </span>
+<span id="L265" class="LineNr">265 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L265'>gap-buffer-equal?</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), s: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L266" class="LineNr">266 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L267" class="LineNr">267 </span>  <span class="muComment"># complication: graphemes may be multiple bytes</span>
+<span id="L268" class="LineNr">268 </span>  <span class="muComment"># so don't rely on length</span>
+<span id="L269" class="LineNr">269 </span>  <span class="muComment"># instead turn the expected result into a stream and arrange to read from it in order</span>
+<span id="L270" class="LineNr">270 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x10</span>/max-word-size)
+<span id="L271" class="LineNr">271 </span>  <span class="PreProc">var</span> expected-stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L272" class="LineNr">272 </span>  <a href='../108write.subx.html#L11'>write</a> expected-stream, s
+<span id="L273" class="LineNr">273 </span>  <span class="muComment"># compare left</span>
+<span id="L274" class="LineNr">274 </span>  <span class="PreProc">var</span> left/<span class="Constant">edx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L275" class="LineNr">275 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L206'>prefix-match?</a> left, expected-stream
+<span id="L276" class="LineNr">276 </span>  compare result, <span class="Constant">0</span>/false
+<span id="L277" class="LineNr">277 </span>  <span class="Delimiter">{</span>
+<span id="L278" class="LineNr">278 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L279" class="LineNr">279 </span>    <span class="PreProc">return</span> result
+<span id="L280" class="LineNr">280 </span>  <span class="Delimiter">}</span>
+<span id="L281" class="LineNr">281 </span>  <span class="muComment"># compare right</span>
+<span id="L282" class="LineNr">282 </span>  <span class="PreProc">var</span> right/<span class="Constant">edx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L283" class="LineNr">283 </span>  result <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L234'>suffix-match?</a> right, expected-stream
+<span id="L284" class="LineNr">284 </span>  compare result, <span class="Constant">0</span>/false
+<span id="L285" class="LineNr">285 </span>  <span class="Delimiter">{</span>
+<span id="L286" class="LineNr">286 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L287" class="LineNr">287 </span>    <span class="PreProc">return</span> result
+<span id="L288" class="LineNr">288 </span>  <span class="Delimiter">}</span>
+<span id="L289" class="LineNr">289 </span>  <span class="muComment"># ensure there's nothing left over</span>
+<span id="L290" class="LineNr">290 </span>  result <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> expected-stream
+<span id="L291" class="LineNr">291 </span>  <span class="PreProc">return</span> result
+<span id="L292" class="LineNr">292 </span><span class="Delimiter">}</span>
+<span id="L293" class="LineNr">293 </span>
+<span id="L294" class="LineNr">294 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L294'>test-gap-buffer-equal-from-end</a></span> <span class="Delimiter">{</span>
+<span id="L295" class="LineNr">295 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L296" class="LineNr">296 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _g
+<span id="L297" class="LineNr">297 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> g, <span class="Constant">0x10</span>
+<span id="L298" class="LineNr">298 </span>  <span class="muComment">#</span>
+<span id="L299" class="LineNr">299 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0x61</span>/a
+<span id="L300" class="LineNr">300 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L301" class="LineNr">301 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L302" class="LineNr">302 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L303" class="LineNr">303 </span>  <span class="muComment"># gap is at end (right is empty)</span>
+<span id="L304" class="LineNr">304 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L265'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aaa&quot;</span>
+<span id="L305" class="LineNr">305 </span>  <a href='../502test.mu.html#L19'>check</a> result, <span class="Constant">&quot;F - test-gap-buffer-equal-from-end&quot;</span>
+<span id="L306" class="LineNr">306 </span><span class="Delimiter">}</span>
+<span id="L307" class="LineNr">307 </span>
+<span id="L308" class="LineNr">308 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L308'>test-gap-buffer-equal-from-middle</a></span> <span class="Delimiter">{</span>
+<span id="L309" class="LineNr">309 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L310" class="LineNr">310 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _g
+<span id="L311" class="LineNr">311 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> g, <span class="Constant">0x10</span>
+<span id="L312" class="LineNr">312 </span>  <span class="muComment">#</span>
+<span id="L313" class="LineNr">313 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0x61</span>/a
+<span id="L314" class="LineNr">314 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L315" class="LineNr">315 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L316" class="LineNr">316 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L317" class="LineNr">317 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L182'>gap-left</a> g
+<span id="L318" class="LineNr">318 </span>  <span class="muComment"># gap is in the middle</span>
+<span id="L319" class="LineNr">319 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L265'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aaa&quot;</span>
+<span id="L320" class="LineNr">320 </span>  <a href='../502test.mu.html#L19'>check</a> result, <span class="Constant">&quot;F - test-gap-buffer-equal-from-middle&quot;</span>
+<span id="L321" class="LineNr">321 </span><span class="Delimiter">}</span>
+<span id="L322" class="LineNr">322 </span>
+<span id="L323" class="LineNr">323 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L323'>test-gap-buffer-equal-from-start</a></span> <span class="Delimiter">{</span>
+<span id="L324" class="LineNr">324 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L325" class="LineNr">325 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _g
+<span id="L326" class="LineNr">326 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> g, <span class="Constant">0x10</span>
+<span id="L327" class="LineNr">327 </span>  <span class="muComment">#</span>
+<span id="L328" class="LineNr">328 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0x61</span>/a
+<span id="L329" class="LineNr">329 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L330" class="LineNr">330 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L331" class="LineNr">331 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L332" class="LineNr">332 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L182'>gap-left</a> g
+<span id="L333" class="LineNr">333 </span>  dummy <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L182'>gap-left</a> g
+<span id="L334" class="LineNr">334 </span>  dummy <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L182'>gap-left</a> g
+<span id="L335" class="LineNr">335 </span>  <span class="muComment"># gap is at the start</span>
+<span id="L336" class="LineNr">336 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L265'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aaa&quot;</span>
+<span id="L337" class="LineNr">337 </span>  <a href='../502test.mu.html#L19'>check</a> result, <span class="Constant">&quot;F - test-gap-buffer-equal-from-start&quot;</span>
+<span id="L338" class="LineNr">338 </span><span class="Delimiter">}</span>
+<span id="L339" class="LineNr">339 </span>
+<span id="L340" class="LineNr">340 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L340'>test-gap-buffer-equal-fails</a></span> <span class="Delimiter">{</span>
+<span id="L341" class="LineNr">341 </span>  <span class="muComment"># g = &quot;aaa&quot;</span>
+<span id="L342" class="LineNr">342 </span>  <span class="PreProc">var</span> _g: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L343" class="LineNr">343 </span>  <span class="PreProc">var</span> g/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _g
+<span id="L344" class="LineNr">344 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> g, <span class="Constant">0x10</span>
+<span id="L345" class="LineNr">345 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0x61</span>/a
+<span id="L346" class="LineNr">346 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L347" class="LineNr">347 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L348" class="LineNr">348 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> g, c
+<span id="L349" class="LineNr">349 </span>  <span class="muComment">#</span>
+<span id="L350" class="LineNr">350 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L265'>gap-buffer-equal?</a> g, <span class="Constant">&quot;aa&quot;</span>
+<span id="L351" class="LineNr">351 </span>  <a href='../502test.mu.html#L32'>check-not</a> result, <span class="Constant">&quot;F - test-gap-buffer-equal-fails&quot;</span>
+<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="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L354'>gap-buffers-equal?</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), g: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L355" class="LineNr">355 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L120'>gap-buffer-length</a> self
+<span id="L356" class="LineNr">356 </span>  <span class="PreProc">var</span> len/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy tmp
+<span id="L357" class="LineNr">357 </span>  <span class="PreProc">var</span> leng/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L120'>gap-buffer-length</a> g
+<span id="L358" class="LineNr">358 </span>  compare len, leng
+<span id="L359" class="LineNr">359 </span>  <span class="Delimiter">{</span>
+<span id="L360" class="LineNr">360 </span>    <span class="PreProc">break-if-=</span>
+<span id="L361" class="LineNr">361 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L362" class="LineNr">362 </span>  <span class="Delimiter">}</span>
+<span id="L363" class="LineNr">363 </span>  <span class="PreProc">var</span> i/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L364" class="LineNr">364 </span>  <span class="Delimiter">{</span>
+<span id="L365" class="LineNr">365 </span>    compare i, len
+<span id="L366" class="LineNr">366 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L367" class="LineNr">367 </span>    <span class="Delimiter">{</span>
+<span id="L368" class="LineNr">368 </span>      <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> self, i
+<span id="L369" class="LineNr">369 </span>      <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: grapheme <span class="Special">&lt;-</span> copy tmp
+<span id="L370" class="LineNr">370 </span>      <span class="PreProc">var</span> currg/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> g, i
+<span id="L371" class="LineNr">371 </span>      compare curr, currg
+<span id="L372" class="LineNr">372 </span>      <span class="PreProc">break-if-=</span>
+<span id="L373" class="LineNr">373 </span>      <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L374" class="LineNr">374 </span>    <span class="Delimiter">}</span>
+<span id="L375" class="LineNr">375 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L376" class="LineNr">376 </span>    <span class="PreProc">loop</span>
+<span id="L377" class="LineNr">377 </span>  <span class="Delimiter">}</span>
+<span id="L378" class="LineNr">378 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L379" class="LineNr">379 </span><span class="Delimiter">}</span>
+<span id="L380" class="LineNr">380 </span>
+<span id="L381" class="LineNr">381 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L381'>gap-index</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), _n: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L382" class="LineNr">382 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L383" class="LineNr">383 </span>  <span class="PreProc">var</span> n/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _n
+<span id="L384" class="LineNr">384 </span>  <span class="muComment"># if n &lt; left-&gt;length, index into left</span>
+<span id="L385" class="LineNr">385 </span>  <span class="PreProc">var</span> left/<span class="Constant">edi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L386" class="LineNr">386 </span>  <span class="PreProc">var</span> left-len-a/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get left, top
+<span id="L387" class="LineNr">387 </span>  compare n, *left-len-a
+<span id="L388" class="LineNr">388 </span>  <span class="Delimiter">{</span>
+<span id="L389" class="LineNr">389 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L390" class="LineNr">390 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get left, data
+<span id="L391" class="LineNr">391 </span>    <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L392" class="LineNr">392 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, n
+<span id="L393" class="LineNr">393 </span>    <span class="PreProc">return</span> *result
+<span id="L394" class="LineNr">394 </span>  <span class="Delimiter">}</span>
+<span id="L395" class="LineNr">395 </span>  <span class="muComment"># shrink n</span>
+<span id="L396" class="LineNr">396 </span>  n <span class="Special">&lt;-</span> subtract *left-len-a
+<span id="L397" class="LineNr">397 </span>  <span class="muComment"># if n &lt; right-&gt;length, index into right</span>
+<span id="L398" class="LineNr">398 </span>  <span class="PreProc">var</span> right/<span class="Constant">edi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L399" class="LineNr">399 </span>  <span class="PreProc">var</span> right-len-a/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get right, top
+<span id="L400" class="LineNr">400 </span>  compare n, *right-len-a
+<span id="L401" class="LineNr">401 </span>  <span class="Delimiter">{</span>
+<span id="L402" class="LineNr">402 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L403" class="LineNr">403 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get right, data
+<span id="L404" class="LineNr">404 </span>    <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L405" class="LineNr">405 </span>    <span class="muComment"># idx = right-&gt;len - n - 1</span>
+<span id="L406" class="LineNr">406 </span>    <span class="PreProc">var</span> idx/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy n
+<span id="L407" class="LineNr">407 </span>    idx <span class="Special">&lt;-</span> subtract *right-len-a
+<span id="L408" class="LineNr">408 </span>    idx <span class="Special">&lt;-</span> negate
+<span id="L409" class="LineNr">409 </span>    idx <span class="Special">&lt;-</span> subtract <span class="Constant">1</span>
+<span id="L410" class="LineNr">410 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, idx
+<span id="L411" class="LineNr">411 </span>    <span class="PreProc">return</span> *result
+<span id="L412" class="LineNr">412 </span>  <span class="Delimiter">}</span>
+<span id="L413" class="LineNr">413 </span>  <span class="muComment"># error</span>
+<span id="L414" class="LineNr">414 </span>  <a href='../501draw-text.mu.html#L459'>abort</a> <span class="Constant">&quot;gap-index: out of bounds&quot;</span>
+<span id="L415" class="LineNr">415 </span>  <span class="PreProc">return</span> <span class="Constant">0</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="muTest"><a href='gap-buffer.mu.html#L418'>test-gap-buffers-equal?</a></span> <span class="Delimiter">{</span>
+<span id="L419" class="LineNr">419 </span>  <span class="PreProc">var</span> _a: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L420" class="LineNr">420 </span>  <span class="PreProc">var</span> a/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _a
+<span id="L421" class="LineNr">421 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> a, <span class="Constant">&quot;abc&quot;</span>
+<span id="L422" class="LineNr">422 </span>  <span class="PreProc">var</span> _b: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L423" class="LineNr">423 </span>  <span class="PreProc">var</span> b/<span class="Constant">edi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _b
+<span id="L424" class="LineNr">424 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> b, <span class="Constant">&quot;abc&quot;</span>
+<span id="L425" class="LineNr">425 </span>  <span class="PreProc">var</span> _c: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L426" class="LineNr">426 </span>  <span class="PreProc">var</span> c/<span class="Constant">ebx</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _c
+<span id="L427" class="LineNr">427 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> c, <span class="Constant">&quot;ab&quot;</span>
+<span id="L428" class="LineNr">428 </span>  <span class="PreProc">var</span> _d: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L429" class="LineNr">429 </span>  <span class="PreProc">var</span> d/<span class="Constant">edx</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address _d
+<span id="L430" class="LineNr">430 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> d, <span class="Constant">&quot;abd&quot;</span>
+<span id="L431" class="LineNr">431 </span>  <span class="muComment">#</span>
+<span id="L432" class="LineNr">432 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L354'>gap-buffers-equal?</a> a, a
+<span id="L433" class="LineNr">433 </span>  <a href='../502test.mu.html#L19'>check</a> result, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L418'>test-gap-buffers-equal?</a> - reflexive&quot;</span>
+<span id="L434" class="LineNr">434 </span>  result <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L354'>gap-buffers-equal?</a> a, b
+<span id="L435" class="LineNr">435 </span>  <a href='../502test.mu.html#L19'>check</a> result, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L418'>test-gap-buffers-equal?</a> - equal&quot;</span>
+<span id="L436" class="LineNr">436 </span>  <span class="muComment"># length not equal</span>
+<span id="L437" class="LineNr">437 </span>  result <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L354'>gap-buffers-equal?</a> a, c
+<span id="L438" class="LineNr">438 </span>  <a href='../502test.mu.html#L32'>check-not</a> result, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L418'>test-gap-buffers-equal?</a> - not equal&quot;</span>
+<span id="L439" class="LineNr">439 </span>  <span class="muComment"># contents not equal</span>
+<span id="L440" class="LineNr">440 </span>  result <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L354'>gap-buffers-equal?</a> a, d
+<span id="L441" class="LineNr">441 </span>  <a href='../502test.mu.html#L32'>check-not</a> result, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L418'>test-gap-buffers-equal?</a> - not equal 2&quot;</span>
+<span id="L442" class="LineNr">442 </span>  result <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L354'>gap-buffers-equal?</a> d, a
+<span id="L443" class="LineNr">443 </span>  <a href='../502test.mu.html#L32'>check-not</a> result, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L418'>test-gap-buffers-equal?</a> - not equal 3&quot;</span>
+<span id="L444" class="LineNr">444 </span><span class="Delimiter">}</span>
+<span id="L445" class="LineNr">445 </span>
+<span id="L446" class="LineNr">446 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L446'>test-gap-buffer-index</a></span> <span class="Delimiter">{</span>
+<span id="L447" class="LineNr">447 </span>  <span class="PreProc">var</span> gap-storage: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L448" class="LineNr">448 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address gap-storage
+<span id="L449" class="LineNr">449 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> gap, <span class="Constant">&quot;abc&quot;</span>
+<span id="L450" class="LineNr">450 </span>  <span class="muComment"># gap is at end, all contents are in left</span>
+<span id="L451" class="LineNr">451 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> gap, <span class="Constant">0</span>
+<span id="L452" class="LineNr">452 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L453" class="LineNr">453 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x61</span>/a, <span class="Constant">&quot;F - test-gap-index/left-1&quot;</span>
+<span id="L454" class="LineNr">454 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> gap, <span class="Constant">1</span>
+<span id="L455" class="LineNr">455 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L456" class="LineNr">456 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x62</span>/b, <span class="Constant">&quot;F - test-gap-index/left-2&quot;</span>
+<span id="L457" class="LineNr">457 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> gap, <span class="Constant">2</span>
+<span id="L458" class="LineNr">458 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L459" class="LineNr">459 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x63</span>/c, <span class="Constant">&quot;F - test-gap-index/left-3&quot;</span>
+<span id="L460" class="LineNr">460 </span>  <span class="muComment"># now check when everything is to the right</span>
+<span id="L461" class="LineNr">461 </span>  <a href='gap-buffer.mu.html#L138'>gap-to-start</a> gap
+<span id="L462" class="LineNr">462 </span>  <a href='gap-buffer.mu.html#L582'>rewind-gap-buffer</a> gap
+<span id="L463" class="LineNr">463 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> gap, <span class="Constant">0</span>
+<span id="L464" class="LineNr">464 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L465" class="LineNr">465 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x61</span>/a, <span class="Constant">&quot;F - test-gap-index/right-1&quot;</span>
+<span id="L466" class="LineNr">466 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> gap, <span class="Constant">1</span>
+<span id="L467" class="LineNr">467 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L468" class="LineNr">468 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x62</span>/b, <span class="Constant">&quot;F - test-gap-index/right-2&quot;</span>
+<span id="L469" class="LineNr">469 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L381'>gap-index</a> gap, <span class="Constant">2</span>
+<span id="L470" class="LineNr">470 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L471" class="LineNr">471 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x63</span>/c, <span class="Constant">&quot;F - test-gap-index/right-3&quot;</span>
+<span id="L472" class="LineNr">472 </span><span class="Delimiter">}</span>
+<span id="L473" class="LineNr">473 </span>
+<span id="L474" class="LineNr">474 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L474'>copy-gap-buffer</a></span> _src-ah: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), _dest-ah: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L475" class="LineNr">475 </span>  <span class="muComment"># obtain src-a, dest-a</span>
+<span id="L476" class="LineNr">476 </span>  <span class="PreProc">var</span> src-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _src-ah
+<span id="L477" class="LineNr">477 </span>  <span class="PreProc">var</span> _src-a/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *src-ah
+<span id="L478" class="LineNr">478 </span>  <span class="PreProc">var</span> src-a/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _src-a
+<span id="L479" class="LineNr">479 </span>  <span class="PreProc">var</span> dest-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _dest-ah
+<span id="L480" class="LineNr">480 </span>  <span class="PreProc">var</span> _dest-a/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *dest-ah
+<span id="L481" class="LineNr">481 </span>  <span class="PreProc">var</span> dest-a/<span class="Constant">edi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _dest-a
+<span id="L482" class="LineNr">482 </span>  <span class="muComment"># copy left grapheme-stack</span>
+<span id="L483" class="LineNr">483 </span>  <span class="PreProc">var</span> src/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get src-a, left
+<span id="L484" class="LineNr">484 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get dest-a, left
+<span id="L485" class="LineNr">485 </span>  <a href='grapheme-stack.mu.html#L67'>copy-grapheme-stack</a> src, dest
+<span id="L486" class="LineNr">486 </span>  <span class="muComment"># copy right grapheme-stack</span>
+<span id="L487" class="LineNr">487 </span>  src <span class="Special">&lt;-</span> get src-a, right
+<span id="L488" class="LineNr">488 </span>  dest <span class="Special">&lt;-</span> get dest-a, right
+<span id="L489" class="LineNr">489 </span>  <a href='grapheme-stack.mu.html#L67'>copy-grapheme-stack</a> src, dest
+<span id="L490" class="LineNr">490 </span><span class="Delimiter">}</span>
+<span id="L491" class="LineNr">491 </span>
+<span id="L492" class="LineNr">492 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L492'>gap-buffer-is-decimal-integer?</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L493" class="LineNr">493 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L494" class="LineNr">494 </span>  <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L495" class="LineNr">495 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L261'>grapheme-stack-is-decimal-integer?</a> curr
+<span id="L496" class="LineNr">496 </span>  <span class="Delimiter">{</span>
+<span id="L497" class="LineNr">497 </span>    compare result, <span class="Constant">0</span>/false
+<span id="L498" class="LineNr">498 </span>    <span class="PreProc">break-if-=</span>
+<span id="L499" class="LineNr">499 </span>    curr <span class="Special">&lt;-</span> get self, right
+<span id="L500" class="LineNr">500 </span>    result <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L261'>grapheme-stack-is-decimal-integer?</a> curr
+<span id="L501" class="LineNr">501 </span>  <span class="Delimiter">}</span>
+<span id="L502" class="LineNr">502 </span>  <span class="PreProc">return</span> result
+<span id="L503" class="LineNr">503 </span><span class="Delimiter">}</span>
+<span id="L504" class="LineNr">504 </span>
+<span id="L505" class="LineNr">505 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L505'>test-render-gap-buffer-without-cursor</a></span> <span class="Delimiter">{</span>
+<span id="L506" class="LineNr">506 </span>  <span class="muComment"># setup</span>
+<span id="L507" class="LineNr">507 </span>  <span class="PreProc">var</span> gap-storage: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L508" class="LineNr">508 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address gap-storage
+<span id="L509" class="LineNr">509 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> gap, <span class="Constant">&quot;abc&quot;</span>
+<span id="L510" class="LineNr">510 </span>  <span class="muComment"># setup: screen</span>
+<span id="L511" class="LineNr">511 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L512" class="LineNr">512 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L513" class="LineNr">513 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
+<span id="L514" class="LineNr">514 </span>  <span class="muComment">#</span>
+<span id="L515" class="LineNr">515 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L108'>render-gap-buffer</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gap, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0</span>/no-cursor
+<span id="L516" class="LineNr">516 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;abc &quot;</span>, <span class="Constant">&quot;F - test-render-gap-buffer-without-cursor&quot;</span>
+<span id="L517" class="LineNr">517 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">4</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L505'>test-render-gap-buffer-without-cursor</a>: result&quot;</span>
+<span id="L518" class="LineNr">518 </span>                                                                <span class="muComment"># abc</span>
+<span id="L519" class="LineNr">519 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L505'>test-render-gap-buffer-without-cursor</a>: bg&quot;</span>
+<span id="L520" class="LineNr">520 </span><span class="Delimiter">}</span>
+<span id="L521" class="LineNr">521 </span>
+<span id="L522" class="LineNr">522 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L522'>test-render-gap-buffer-with-cursor-at-end</a></span> <span class="Delimiter">{</span>
+<span id="L523" class="LineNr">523 </span>  <span class="muComment"># setup</span>
+<span id="L524" class="LineNr">524 </span>  <span class="PreProc">var</span> gap-storage: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L525" class="LineNr">525 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address gap-storage
+<span id="L526" class="LineNr">526 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> gap, <span class="Constant">&quot;abc&quot;</span>
+<span id="L527" class="LineNr">527 </span>  <a href='gap-buffer.mu.html#L146'>gap-to-end</a> gap
+<span id="L528" class="LineNr">528 </span>  <span class="muComment"># setup: screen</span>
+<span id="L529" class="LineNr">529 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L530" class="LineNr">530 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L531" class="LineNr">531 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
+<span id="L532" class="LineNr">532 </span>  <span class="muComment">#</span>
+<span id="L533" class="LineNr">533 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L108'>render-gap-buffer</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gap, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">1</span>/show-cursor
+<span id="L534" class="LineNr">534 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;abc &quot;</span>, <span class="Constant">&quot;F - test-render-gap-buffer-with-cursor-at-end&quot;</span>
+<span id="L535" class="LineNr">535 </span>  <span class="muComment"># we've drawn one extra grapheme for the cursor</span>
+<span id="L536" class="LineNr">536 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">4</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L522'>test-render-gap-buffer-with-cursor-at-end</a>: result&quot;</span>
+<span id="L537" class="LineNr">537 </span>                                                                <span class="muComment"># abc</span>
+<span id="L538" class="LineNr">538 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;   |&quot;</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L522'>test-render-gap-buffer-with-cursor-at-end</a>: bg&quot;</span>
+<span id="L539" class="LineNr">539 </span><span class="Delimiter">}</span>
+<span id="L540" class="LineNr">540 </span>
+<span id="L541" class="LineNr">541 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L541'>test-render-gap-buffer-with-cursor-in-middle</a></span> <span class="Delimiter">{</span>
+<span id="L542" class="LineNr">542 </span>  <span class="muComment"># setup</span>
+<span id="L543" class="LineNr">543 </span>  <span class="PreProc">var</span> gap-storage: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L544" class="LineNr">544 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address gap-storage
+<span id="L545" class="LineNr">545 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> gap, <span class="Constant">&quot;abc&quot;</span>
+<span id="L546" class="LineNr">546 </span>  <a href='gap-buffer.mu.html#L146'>gap-to-end</a> gap
+<span id="L547" class="LineNr">547 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L182'>gap-left</a> gap
+<span id="L548" class="LineNr">548 </span>  <span class="muComment"># setup: screen</span>
+<span id="L549" class="LineNr">549 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L550" class="LineNr">550 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L551" class="LineNr">551 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
+<span id="L552" class="LineNr">552 </span>  <span class="muComment">#</span>
+<span id="L553" class="LineNr">553 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L108'>render-gap-buffer</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gap, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">1</span>/show-cursor
+<span id="L554" class="LineNr">554 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;abc &quot;</span>, <span class="Constant">&quot;F - test-render-gap-buffer-with-cursor-in-middle&quot;</span>
+<span id="L555" class="LineNr">555 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">4</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L541'>test-render-gap-buffer-with-cursor-in-middle</a>: result&quot;</span>
+<span id="L556" class="LineNr">556 </span>                                                                <span class="muComment"># abc</span>
+<span id="L557" class="LineNr">557 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;  | &quot;</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L541'>test-render-gap-buffer-with-cursor-in-middle</a>: bg&quot;</span>
+<span id="L558" class="LineNr">558 </span><span class="Delimiter">}</span>
+<span id="L559" class="LineNr">559 </span>
+<span id="L560" class="LineNr">560 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L560'>test-render-gap-buffer-with-cursor-at-start</a></span> <span class="Delimiter">{</span>
+<span id="L561" class="LineNr">561 </span>  <span class="PreProc">var</span> gap-storage: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L562" class="LineNr">562 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address gap-storage
+<span id="L563" class="LineNr">563 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> gap, <span class="Constant">&quot;abc&quot;</span>
+<span id="L564" class="LineNr">564 </span>  <a href='gap-buffer.mu.html#L138'>gap-to-start</a> gap
+<span id="L565" class="LineNr">565 </span>  <span class="muComment"># setup: screen</span>
+<span id="L566" class="LineNr">566 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L567" class="LineNr">567 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L568" class="LineNr">568 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
+<span id="L569" class="LineNr">569 </span>  <span class="muComment">#</span>
+<span id="L570" class="LineNr">570 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L108'>render-gap-buffer</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gap, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">1</span>/show-cursor
+<span id="L571" class="LineNr">571 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;abc &quot;</span>, <span class="Constant">&quot;F - test-render-gap-buffer-with-cursor-at-start&quot;</span>
+<span id="L572" class="LineNr">572 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">4</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L560'>test-render-gap-buffer-with-cursor-at-start</a>: result&quot;</span>
+<span id="L573" class="LineNr">573 </span>                                                                <span class="muComment"># abc</span>
+<span id="L574" class="LineNr">574 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|   &quot;</span>, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L560'>test-render-gap-buffer-with-cursor-at-start</a>: bg&quot;</span>
+<span id="L575" class="LineNr">575 </span><span class="Delimiter">}</span>
+<span id="L576" class="LineNr">576 </span>
+<span id="L577" class="LineNr">577 </span><span class="muComment">## some primitives for scanning through a gap buffer</span>
+<span id="L578" class="LineNr">578 </span><span class="muComment"># don't modify the gap buffer while scanning</span>
+<span id="L579" class="LineNr">579 </span><span class="muComment"># this includes moving the cursor around</span>
+<span id="L580" class="LineNr">580 </span>
+<span id="L581" class="LineNr">581 </span><span class="muComment"># restart scan without affecting gap-buffer contents</span>
+<span id="L582" class="LineNr">582 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L582'>rewind-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L583" class="LineNr">583 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L584" class="LineNr">584 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, left-read-index
+<span id="L585" class="LineNr">585 </span>  copy-to *dest, <span class="Constant">0</span>
+<span id="L586" class="LineNr">586 </span>  dest <span class="Special">&lt;-</span> get self, right-read-index
+<span id="L587" class="LineNr">587 </span>  copy-to *dest, <span class="Constant">0</span>
+<span id="L588" class="LineNr">588 </span><span class="Delimiter">}</span>
+<span id="L589" class="LineNr">589 </span>
+<span id="L590" class="LineNr">590 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L591" class="LineNr">591 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L592" class="LineNr">592 </span>  <span class="muComment"># more in left?</span>
+<span id="L593" class="LineNr">593 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L594" class="LineNr">594 </span>  <span class="PreProc">var</span> left-size/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a> left
+<span id="L595" class="LineNr">595 </span>  <span class="PreProc">var</span> left-read-index/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, left-read-index
+<span id="L596" class="LineNr">596 </span>  compare *left-read-index, left-size
+<span id="L597" class="LineNr">597 </span>  <span class="Delimiter">{</span>
+<span id="L598" class="LineNr">598 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L599" class="LineNr">599 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L600" class="LineNr">600 </span>  <span class="Delimiter">}</span>
+<span id="L601" class="LineNr">601 </span>  <span class="muComment"># more in right?</span>
+<span id="L602" class="LineNr">602 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L603" class="LineNr">603 </span>  <span class="PreProc">var</span> right-size/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a> right
+<span id="L604" class="LineNr">604 </span>  <span class="PreProc">var</span> right-read-index/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, right-read-index
+<span id="L605" class="LineNr">605 </span>  compare *right-read-index, right-size
+<span id="L606" class="LineNr">606 </span>  <span class="Delimiter">{</span>
+<span id="L607" class="LineNr">607 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L608" class="LineNr">608 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L609" class="LineNr">609 </span>  <span class="Delimiter">}</span>
+<span id="L610" class="LineNr">610 </span>  <span class="muComment">#</span>
+<span id="L611" class="LineNr">611 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L612" class="LineNr">612 </span><span class="Delimiter">}</span>
+<span id="L613" class="LineNr">613 </span>
+<span id="L614" class="LineNr">614 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L614'>peek-from-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L615" class="LineNr">615 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L616" class="LineNr">616 </span>  <span class="muComment"># more in left?</span>
+<span id="L617" class="LineNr">617 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L618" class="LineNr">618 </span>  <span class="PreProc">var</span> left-size/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a> left
+<span id="L619" class="LineNr">619 </span>  <span class="PreProc">var</span> left-read-index-a/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, left-read-index
+<span id="L620" class="LineNr">620 </span>  compare *left-read-index-a, left-size
+<span id="L621" class="LineNr">621 </span>  <span class="Delimiter">{</span>
+<span id="L622" class="LineNr">622 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L623" class="LineNr">623 </span>    <span class="PreProc">var</span> left-data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get left, data
+<span id="L624" class="LineNr">624 </span>    <span class="PreProc">var</span> left-data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *left-data-ah
+<span id="L625" class="LineNr">625 </span>    <span class="PreProc">var</span> left-read-index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *left-read-index-a
+<span id="L626" class="LineNr">626 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index left-data, left-read-index
+<span id="L627" class="LineNr">627 </span>    <span class="PreProc">return</span> *result
+<span id="L628" class="LineNr">628 </span>  <span class="Delimiter">}</span>
+<span id="L629" class="LineNr">629 </span>  <span class="muComment"># more in right?</span>
+<span id="L630" class="LineNr">630 </span>  <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L631" class="LineNr">631 </span>  <span class="PreProc">var</span> _right-size/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a> right
+<span id="L632" class="LineNr">632 </span>  <span class="PreProc">var</span> right-size/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _right-size
+<span id="L633" class="LineNr">633 </span>  <span class="PreProc">var</span> right-read-index-a/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, right-read-index
+<span id="L634" class="LineNr">634 </span>  compare *right-read-index-a, right-size
+<span id="L635" class="LineNr">635 </span>  <span class="Delimiter">{</span>
+<span id="L636" class="LineNr">636 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L637" class="LineNr">637 </span>    <span class="muComment"># read the right from reverse</span>
+<span id="L638" class="LineNr">638 </span>    <span class="PreProc">var</span> right-data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get right, data
+<span id="L639" class="LineNr">639 </span>    <span class="PreProc">var</span> right-data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *right-data-ah
+<span id="L640" class="LineNr">640 </span>    <span class="PreProc">var</span> right-read-index/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy right-size
+<span id="L641" class="LineNr">641 </span>    right-read-index <span class="Special">&lt;-</span> subtract *right-read-index-a
+<span id="L642" class="LineNr">642 </span>    right-read-index <span class="Special">&lt;-</span> subtract <span class="Constant">1</span>
+<span id="L643" class="LineNr">643 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index right-data, right-read-index
+<span id="L644" class="LineNr">644 </span>    <span class="PreProc">return</span> *result
+<span id="L645" class="LineNr">645 </span>  <span class="Delimiter">}</span>
+<span id="L646" class="LineNr">646 </span>  <span class="muComment"># if we get here there's nothing left</span>
+<span id="L647" class="LineNr">647 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/nul
+<span id="L648" class="LineNr">648 </span><span class="Delimiter">}</span>
+<span id="L649" class="LineNr">649 </span>
+<span id="L650" class="LineNr">650 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a></span> _self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L651" class="LineNr">651 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L652" class="LineNr">652 </span>  <span class="muComment"># more in left?</span>
+<span id="L653" class="LineNr">653 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, left
+<span id="L654" class="LineNr">654 </span>  <span class="PreProc">var</span> left-size/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a> left
+<span id="L655" class="LineNr">655 </span>  <span class="PreProc">var</span> left-read-index-a/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, left-read-index
+<span id="L656" class="LineNr">656 </span>  compare *left-read-index-a, left-size
+<span id="L657" class="LineNr">657 </span>  <span class="Delimiter">{</span>
+<span id="L658" class="LineNr">658 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L659" class="LineNr">659 </span>    <span class="PreProc">var</span> left-data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get left, data
+<span id="L660" class="LineNr">660 </span>    <span class="PreProc">var</span> left-data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *left-data-ah
+<span id="L661" class="LineNr">661 </span>    <span class="PreProc">var</span> left-read-index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *left-read-index-a
+<span id="L662" class="LineNr">662 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index left-data, left-read-index
+<span id="L663" class="LineNr">663 </span>    increment *left-read-index-a
+<span id="L664" class="LineNr">664 </span>    <span class="PreProc">return</span> *result
+<span id="L665" class="LineNr">665 </span>  <span class="Delimiter">}</span>
+<span id="L666" class="LineNr">666 </span>  <span class="muComment"># more in right?</span>
+<span id="L667" class="LineNr">667 </span>  <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> get self, right
+<span id="L668" class="LineNr">668 </span>  <span class="PreProc">var</span> _right-size/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a> right
+<span id="L669" class="LineNr">669 </span>  <span class="PreProc">var</span> right-size/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _right-size
+<span id="L670" class="LineNr">670 </span>  <span class="PreProc">var</span> right-read-index-a/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, right-read-index
+<span id="L671" class="LineNr">671 </span>  compare *right-read-index-a, right-size
+<span id="L672" class="LineNr">672 </span>  <span class="Delimiter">{</span>
+<span id="L673" class="LineNr">673 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L674" class="LineNr">674 </span>    <span class="muComment"># read the right from reverse</span>
+<span id="L675" class="LineNr">675 </span>    <span class="PreProc">var</span> right-data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get right, data
+<span id="L676" class="LineNr">676 </span>    <span class="PreProc">var</span> right-data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *right-data-ah
+<span id="L677" class="LineNr">677 </span>    <span class="PreProc">var</span> right-read-index/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy right-size
+<span id="L678" class="LineNr">678 </span>    right-read-index <span class="Special">&lt;-</span> subtract *right-read-index-a
+<span id="L679" class="LineNr">679 </span>    right-read-index <span class="Special">&lt;-</span> subtract <span class="Constant">1</span>
+<span id="L680" class="LineNr">680 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index right-data, right-read-index
+<span id="L681" class="LineNr">681 </span>    increment *right-read-index-a
+<span id="L682" class="LineNr">682 </span>    <span class="PreProc">return</span> *result
+<span id="L683" class="LineNr">683 </span>  <span class="Delimiter">}</span>
+<span id="L684" class="LineNr">684 </span>  <span class="muComment"># if we get here there's nothing left</span>
+<span id="L685" class="LineNr">685 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/nul
+<span id="L686" class="LineNr">686 </span><span class="Delimiter">}</span>
+<span id="L687" class="LineNr">687 </span>
+<span id="L688" class="LineNr">688 </span><span class="PreProc">fn</span> <span class="muTest"><a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a></span> <span class="Delimiter">{</span>
+<span id="L689" class="LineNr">689 </span>  <span class="PreProc">var</span> gap-storage: <a href='gap-buffer.mu.html#L3'>gap-buffer</a>
+<span id="L690" class="LineNr">690 </span>  <span class="PreProc">var</span> gap/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address gap-storage
+<span id="L691" class="LineNr">691 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> gap, <span class="Constant">&quot;abc&quot;</span>
+<span id="L692" class="LineNr">692 </span>  <span class="muComment"># gap is at end, all contents are in left</span>
+<span id="L693" class="LineNr">693 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L694" class="LineNr">694 </span>  <a href='../502test.mu.html#L32'>check-not</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-1/done&quot;</span>
+<span id="L695" class="LineNr">695 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L696" class="LineNr">696 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L697" class="LineNr">697 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x61</span>/a, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-1&quot;</span>
+<span id="L698" class="LineNr">698 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L699" class="LineNr">699 </span>  <a href='../502test.mu.html#L32'>check-not</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-2/done&quot;</span>
+<span id="L700" class="LineNr">700 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L701" class="LineNr">701 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L702" class="LineNr">702 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x62</span>/b, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-2&quot;</span>
+<span id="L703" class="LineNr">703 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L704" class="LineNr">704 </span>  <a href='../502test.mu.html#L32'>check-not</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-3/done&quot;</span>
+<span id="L705" class="LineNr">705 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L706" class="LineNr">706 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L707" class="LineNr">707 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x63</span>/c, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-3&quot;</span>
+<span id="L708" class="LineNr">708 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L709" class="LineNr">709 </span>  <a href='../502test.mu.html#L19'>check</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-4/done&quot;</span>
+<span id="L710" class="LineNr">710 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L711" class="LineNr">711 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L712" class="LineNr">712 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0</span>/nul, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/left-4&quot;</span>
+<span id="L713" class="LineNr">713 </span>  <span class="muComment"># now check when everything is to the right</span>
+<span id="L714" class="LineNr">714 </span>  <a href='gap-buffer.mu.html#L138'>gap-to-start</a> gap
+<span id="L715" class="LineNr">715 </span>  <a href='gap-buffer.mu.html#L582'>rewind-gap-buffer</a> gap
+<span id="L716" class="LineNr">716 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L717" class="LineNr">717 </span>  <a href='../502test.mu.html#L32'>check-not</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-1/done&quot;</span>
+<span id="L718" class="LineNr">718 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L719" class="LineNr">719 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L720" class="LineNr">720 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x61</span>/a, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-1&quot;</span>
+<span id="L721" class="LineNr">721 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L722" class="LineNr">722 </span>  <a href='../502test.mu.html#L32'>check-not</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-2/done&quot;</span>
+<span id="L723" class="LineNr">723 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L724" class="LineNr">724 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L725" class="LineNr">725 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x62</span>/b, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-2&quot;</span>
+<span id="L726" class="LineNr">726 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L727" class="LineNr">727 </span>  <a href='../502test.mu.html#L32'>check-not</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-3/done&quot;</span>
+<span id="L728" class="LineNr">728 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L729" class="LineNr">729 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L730" class="LineNr">730 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0x63</span>/c, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-3&quot;</span>
+<span id="L731" class="LineNr">731 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> gap
+<span id="L732" class="LineNr">732 </span>  <a href='../502test.mu.html#L19'>check</a> done?, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-4/done&quot;</span>
+<span id="L733" class="LineNr">733 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> gap
+<span id="L734" class="LineNr">734 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L735" class="LineNr">735 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">0</span>/nul, <span class="Constant">&quot;F - <a href='gap-buffer.mu.html#L688'>test-read-from-gap-buffer</a>/right-4&quot;</span>
+<span id="L736" class="LineNr">736 </span><span class="Delimiter">}</span>
+<span id="L737" class="LineNr">737 </span>
+<span id="L738" class="LineNr">738 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L738'>skip-whitespace-from-gap-buffer</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Delimiter">{</span>
+<span id="L739" class="LineNr">739 </span>  <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> self
+<span id="L740" class="LineNr">740 </span>  compare done?, <span class="Constant">0</span>/false
+<span id="L741" class="LineNr">741 </span>  <span class="PreProc">break-if-!=</span>
+<span id="L742" class="LineNr">742 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L614'>peek-from-gap-buffer</a> self
+<span id="L743" class="LineNr">743 </span>  <span class="Delimiter">{</span>
+<span id="L744" class="LineNr">744 </span>    compare g, <span class="Constant">0x20</span>/space
+<span id="L745" class="LineNr">745 </span>    <span class="PreProc">break-if-=</span>
+<span id="L746" class="LineNr">746 </span>    compare g, <span class="Constant">0xa</span>/newline
+<span id="L747" class="LineNr">747 </span>    <span class="PreProc">break-if-=</span>
+<span id="L748" class="LineNr">748 </span>    <span class="PreProc">return</span>
+<span id="L749" class="LineNr">749 </span>  <span class="Delimiter">}</span>
+<span id="L750" class="LineNr">750 </span>  g <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> self
+<span id="L751" class="LineNr">751 </span>  <span class="PreProc">loop</span>
+<span id="L752" class="LineNr">752 </span><span class="Delimiter">}</span>
+<span id="L753" class="LineNr">753 </span>
+<span id="L754" class="LineNr">754 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L754'>edit-gap-buffer</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), key: grapheme <span class="Delimiter">{</span>
+<span id="L755" class="LineNr">755 </span>  <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="Special">&lt;-</span> copy key
+<span id="L756" class="LineNr">756 </span>  <span class="Delimiter">{</span>
+<span id="L757" class="LineNr">757 </span>    compare g, <span class="Constant">8</span>/backspace
+<span id="L758" class="LineNr">758 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L759" class="LineNr">759 </span>    <a href='gap-buffer.mu.html#L252'>delete-before-gap</a> self
+<span id="L760" class="LineNr">760 </span>    <span class="PreProc">return</span>
+<span id="L761" class="LineNr">761 </span>  <span class="Delimiter">}</span>
+<span id="L762" class="LineNr">762 </span>  <span class="muComment"># arrow keys</span>
+<span id="L763" class="LineNr">763 </span>  <span class="Delimiter">{</span>
+<span id="L764" class="LineNr">764 </span>    compare g, <span class="Constant">4</span>/ctrl-d
+<span id="L765" class="LineNr">765 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L766" class="LineNr">766 </span>    <span class="muComment"># ctrl-d: cursor down</span>
+<span id="L767" class="LineNr">767 </span>    <span class="PreProc">return</span>
+<span id="L768" class="LineNr">768 </span>  <span class="Delimiter">}</span>
+<span id="L769" class="LineNr">769 </span>  <span class="Delimiter">{</span>
+<span id="L770" class="LineNr">770 </span>    compare g, <span class="Constant">0x15</span>/ctrl-u
+<span id="L771" class="LineNr">771 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L772" class="LineNr">772 </span>    <span class="muComment"># ctrl-u: cursor up</span>
+<span id="L773" class="LineNr">773 </span>    <span class="PreProc">return</span>
+<span id="L774" class="LineNr">774 </span>  <span class="Delimiter">}</span>
+<span id="L775" class="LineNr">775 </span>  <span class="muComment"># default: insert character</span>
+<span id="L776" class="LineNr">776 </span>  <a href='gap-buffer.mu.html#L132'>add-grapheme-at-gap</a> self, g
+<span id="L777" class="LineNr">777 </span><span class="Delimiter">}</span>
+<span id="L778" class="LineNr">778 </span>
+<span id="L779" class="LineNr">779 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='gap-buffer.mu.html#L779'>cursor-on-final-line?</a></span> self: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L780" class="LineNr">780 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L781" class="LineNr">781 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/grapheme-stack.mu.html b/html/shell/grapheme-stack.mu.html
new file mode 100644
index 00000000..ccd4a88f
--- /dev/null
+++ b/html/shell/grapheme-stack.mu.html
@@ -0,0 +1,343 @@
+<!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 - shell/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=">
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+<a href='https://github.com/akkartik/mu/blob/main/shell/grapheme-stack.mu'>https://github.com/akkartik/mu/blob/main/shell/grapheme-stack.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># grapheme stacks are the smallest unit of editable text</span>
+<span id="L2" class="LineNr">  2 </span>
+<span id="L3" class="LineNr">  3 </span><span class="PreProc">type</span> <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a> <span class="Delimiter">{</span>
+<span id="L4" class="LineNr">  4 </span>  data: (handle array grapheme)
+<span id="L5" class="LineNr">  5 </span>  top: 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='grapheme-stack.mu.html#L8'>initialize-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-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='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&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 grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L11" class="LineNr"> 11 </span>  populate d, n
+<span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> top/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<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='grapheme-stack.mu.html#L16'>clear-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-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='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> top/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<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='grapheme-stack.mu.html#L22'>grapheme-stack-empty?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <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='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L24" class="LineNr"> 24 </span>  <span class="PreProc">var</span> top/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L25" class="LineNr"> 25 </span>  compare *top, <span class="Constant">0</span>
+<span id="L26" class="LineNr"> 26 </span>  <span class="Delimiter">{</span>
+<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L28" class="LineNr"> 28 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span>
+<span id="L32" class="LineNr"> 32 </span>
+<span id="L33" class="LineNr"> 33 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L33'>grapheme-stack-length</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <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='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> top/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">return</span> *top
+<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='grapheme-stack.mu.html#L39'>push-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), _val: grapheme <span class="Delimiter">{</span>
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L41" class="LineNr"> 41 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L44" class="LineNr"> 44 </span>  <span class="PreProc">var</span> top/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L45" class="LineNr"> 45 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, top
+<span id="L46" class="LineNr"> 46 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy _val
+<span id="L47" class="LineNr"> 47 </span>  copy-to *dest-addr, val
+<span id="L48" class="LineNr"> 48 </span>  add-to *top-addr, <span class="Constant">1</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='grapheme-stack.mu.html#L51'>pop-grapheme-stack</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L53" class="LineNr"> 53 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L54" class="LineNr"> 54 </span>  <span class="Delimiter">{</span>
+<span id="L55" class="LineNr"> 55 </span>    compare *top-addr, <span class="Constant">0</span>
+<span id="L56" class="LineNr"> 56 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L57" class="LineNr"> 57 </span>    <span class="PreProc">return</span> <span class="Constant">-1</span>
+<span id="L58" class="LineNr"> 58 </span>  <span class="Delimiter">}</span>
+<span id="L59" class="LineNr"> 59 </span>  subtract-from *top-addr, <span class="Constant">1</span>
+<span id="L60" class="LineNr"> 60 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L61" class="LineNr"> 61 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L62" class="LineNr"> 62 </span>  <span class="PreProc">var</span> top/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, top
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">return</span> *result-addr
+<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">}</span>
+<span id="L66" class="LineNr"> 66 </span>
+<span id="L67" class="LineNr"> 67 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L67'>copy-grapheme-stack</a></span> _src: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), dest: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Delimiter">{</span>
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> src/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _src
+<span id="L69" class="LineNr"> 69 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get src, data
+<span id="L70" class="LineNr"> 70 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L71" class="LineNr"> 71 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L72" class="LineNr"> 72 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get src, top
+<span id="L73" class="LineNr"> 73 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="Special">&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 i, *top-addr
+<span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L77" class="LineNr"> 77 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L78" class="LineNr"> 78 </span>    <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> dest, *g
+<span id="L79" class="LineNr"> 79 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L80" class="LineNr"> 80 </span>    <span class="PreProc">loop</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="muComment"># dump stack to screen from bottom to top</span>
+<span id="L85" class="LineNr"> 85 </span><span class="muComment"># colors hardcoded</span>
+<span id="L86" class="LineNr"> 86 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L86'>render-stack-from-bottom-wrapping-right-then-down</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), xmin: int, ymin: int, xmax: int, ymax: int, _x: int, _y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L87" class="LineNr"> 87 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L88" class="LineNr"> 88 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L89" class="LineNr"> 89 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L90" class="LineNr"> 90 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L91" class="LineNr"> 91 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy _x
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy _y
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="Delimiter">{</span>
+<span id="L96" class="LineNr"> 96 </span>    compare i, *top-addr
+<span id="L97" class="LineNr"> 97 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L98" class="LineNr"> 98 </span>    <span class="Delimiter">{</span>
+<span id="L99" class="LineNr"> 99 </span>      <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L100" class="LineNr">100 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L141'>render-grapheme</a> <a href='../500text-screen.mu.html#L9'>screen</a>, *g, xmin, ymin, xmax, ymax, x, y, <span class="Constant">3</span>/fg=cyan, <span class="Constant">0</span>/bg
+<span id="L101" class="LineNr">101 </span>    <span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L103" class="LineNr">103 </span>    <span class="PreProc">loop</span>
+<span id="L104" class="LineNr">104 </span>  <span class="Delimiter">}</span>
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">return</span> x, y
+<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="muComment"># helper for small words</span>
+<span id="L109" class="LineNr">109 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L109'>render-stack-from-bottom</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L110" class="LineNr">110 </span>  <span class="PreProc">var</span> _width/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L111" class="LineNr">111 </span>  <span class="PreProc">var</span> _height/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L112" class="LineNr">112 </span>  _width, _height <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L50'>screen-size</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">var</span> width/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy _width
+<span id="L114" class="LineNr">114 </span>  <span class="PreProc">var</span> height/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _height
+<span id="L115" class="LineNr">115 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L116" class="LineNr">116 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L117" class="LineNr">117 </span>  x2, y2 <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L86'>render-stack-from-bottom-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, self, x, y, width, height, x, y
+<span id="L118" class="LineNr">118 </span>  <span class="PreProc">return</span> x2  <span class="muComment"># y2? yolo</span>
+<span id="L119" class="LineNr">119 </span><span class="Delimiter">}</span>
+<span id="L120" class="LineNr">120 </span>
+<span id="L121" class="LineNr">121 </span><span class="muComment"># dump stack to screen from top to bottom</span>
+<span id="L122" class="LineNr">122 </span><span class="muComment"># optionally render a 'cursor' with the top grapheme</span>
+<span id="L123" class="LineNr">123 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L123'>render-stack-from-top-wrapping-right-then-down</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), xmin: int, ymin: int, xmax: int, ymax: int, _x: int, _y: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L124" class="LineNr">124 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy _x
+<span id="L129" class="LineNr">129 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy _y
+<span id="L130" class="LineNr">130 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L131" class="LineNr">131 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L132" class="LineNr">132 </span>  i <span class="Special">&lt;-</span> decrement
+<span id="L133" class="LineNr">133 </span>  <span class="muComment"># if render-cursor?, peel off first iteration</span>
+<span id="L134" class="LineNr">134 </span>  <span class="Delimiter">{</span>
+<span id="L135" class="LineNr">135 </span>    compare render-cursor?, <span class="Constant">0</span>/false
+<span id="L136" class="LineNr">136 </span>    <span class="PreProc">break-if-=</span>
+<span id="L137" class="LineNr">137 </span>    compare i, <span class="Constant">0</span>
+<span id="L138" class="LineNr">138 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L139" class="LineNr">139 </span>    <span class="Delimiter">{</span>
+<span id="L140" class="LineNr">140 </span>      <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L141" class="LineNr">141 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L141'>render-grapheme</a> <a href='../500text-screen.mu.html#L9'>screen</a>, *g, xmin, ymin, xmax, ymax, x, y, <span class="Constant">3</span>/fg=cyan, <span class="Constant">7</span>/bg=cursor
+<span id="L142" class="LineNr">142 </span>    <span class="Delimiter">}</span>
+<span id="L143" class="LineNr">143 </span>    i <span class="Special">&lt;-</span> decrement
+<span id="L144" class="LineNr">144 </span>  <span class="Delimiter">}</span>
+<span id="L145" class="LineNr">145 </span>  <span class="muComment"># remaining iterations</span>
+<span id="L146" class="LineNr">146 </span>  <span class="Delimiter">{</span>
+<span id="L147" class="LineNr">147 </span>    compare i, <span class="Constant">0</span>
+<span id="L148" class="LineNr">148 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L149" class="LineNr">149 </span>    <span class="Delimiter">{</span>
+<span id="L150" class="LineNr">150 </span>      <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L151" class="LineNr">151 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L141'>render-grapheme</a> <a href='../500text-screen.mu.html#L9'>screen</a>, *g, xmin, ymin, xmax, ymax, x, y, <span class="Constant">3</span>/fg=cyan, <span class="Constant">0</span>/bg=cursor
+<span id="L152" class="LineNr">152 </span>    <span class="Delimiter">}</span>
+<span id="L153" class="LineNr">153 </span>    i <span class="Special">&lt;-</span> decrement
+<span id="L154" class="LineNr">154 </span>    <span class="PreProc">loop</span>
+<span id="L155" class="LineNr">155 </span>  <span class="Delimiter">}</span>
+<span id="L156" class="LineNr">156 </span>  <span class="PreProc">return</span> x, y
+<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="muComment"># helper for small words</span>
+<span id="L160" class="LineNr">160 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L160'>render-stack-from-top</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), x: int, y: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> _width/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L162" class="LineNr">162 </span>  <span class="PreProc">var</span> _height/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L163" class="LineNr">163 </span>  _width, _height <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L50'>screen-size</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L164" class="LineNr">164 </span>  <span class="PreProc">var</span> width/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy _width
+<span id="L165" class="LineNr">165 </span>  <span class="PreProc">var</span> height/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _height
+<span id="L166" class="LineNr">166 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L167" class="LineNr">167 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L168" class="LineNr">168 </span>  x2, y2 <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L123'>render-stack-from-top-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, self, x, y, width, height, x, y, render-cursor?
+<span id="L169" class="LineNr">169 </span>  <span class="PreProc">return</span> x2  <span class="muComment"># y2? yolo</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="muTest"><a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a></span> <span class="Delimiter">{</span>
+<span id="L173" class="LineNr">173 </span>  <span class="muComment"># setup: gs = &quot;abc&quot;</span>
+<span id="L174" class="LineNr">174 </span>  <span class="PreProc">var</span> gs-storage: <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>
+<span id="L175" class="LineNr">175 </span>  <span class="PreProc">var</span> gs/<span class="Constant">edi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> address gs-storage
+<span id="L176" class="LineNr">176 </span>  <a href='grapheme-stack.mu.html#L8'>initialize-grapheme-stack</a> gs, <span class="Constant">5</span>
+<span id="L177" class="LineNr">177 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0x61</span>/a
+<span id="L178" class="LineNr">178 </span>  <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> gs, g
+<span id="L179" class="LineNr">179 </span>  g <span class="Special">&lt;-</span> copy <span class="Constant">0x62</span>/b
+<span id="L180" class="LineNr">180 </span>  <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> gs, g
+<span id="L181" class="LineNr">181 </span>  g <span class="Special">&lt;-</span> copy <span class="Constant">0x63</span>/c
+<span id="L182" class="LineNr">182 </span>  <a href='grapheme-stack.mu.html#L39'>push-grapheme-stack</a> gs, g
+<span id="L183" class="LineNr">183 </span>  <span class="muComment"># setup: screen</span>
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L185" class="LineNr">185 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L186" class="LineNr">186 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
+<span id="L187" class="LineNr">187 </span>  <span class="muComment">#</span>
+<span id="L188" class="LineNr">188 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L109'>render-stack-from-bottom</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gs, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y
+<span id="L189" class="LineNr">189 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;abc &quot;</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from bottom&quot;</span>
+<span id="L190" class="LineNr">190 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from bottom: result&quot;</span>
+<span id="L191" class="LineNr">191 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;   &quot;</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from bottom: bg&quot;</span>
+<span id="L192" class="LineNr">192 </span>  <span class="muComment">#</span>
+<span id="L193" class="LineNr">193 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L160'>render-stack-from-top</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gs, <span class="Constant">0</span>/x, <span class="Constant">1</span>/y, <span class="Constant">0</span>/cursor=false
+<span id="L194" class="LineNr">194 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;cba &quot;</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from top without cursor&quot;</span>
+<span id="L195" class="LineNr">195 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from top without cursor: result&quot;</span>
+<span id="L196" class="LineNr">196 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;   &quot;</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from top without cursor: bg&quot;</span>
+<span id="L197" class="LineNr">197 </span>  <span class="muComment">#</span>
+<span id="L198" class="LineNr">198 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='grapheme-stack.mu.html#L160'>render-stack-from-top</a> <a href='../500text-screen.mu.html#L9'>screen</a>, gs, <span class="Constant">0</span>/x, <span class="Constant">2</span>/y, <span class="Constant">1</span>/cursor=true
+<span id="L199" class="LineNr">199 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;cba &quot;</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from top with cursor&quot;</span>
+<span id="L200" class="LineNr">200 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> x, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from top without cursor: result&quot;</span>
+<span id="L201" class="LineNr">201 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;|   &quot;</span>, <span class="Constant">&quot;F - <a href='grapheme-stack.mu.html#L172'>test-render-grapheme-stack</a> from top with cursor: bg&quot;</span>
+<span id="L202" class="LineNr">202 </span><span class="Delimiter">}</span>
+<span id="L203" class="LineNr">203 </span>
+<span id="L204" class="LineNr">204 </span><span class="muComment"># compare from bottom</span>
+<span id="L205" class="LineNr">205 </span><span class="muComment"># beware: modifies 'stream', which must be disposed of after a false result</span>
+<span id="L206" class="LineNr">206 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L206'>prefix-match?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L209" class="LineNr">209 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L211" class="LineNr">211 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L212" class="LineNr">212 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L213" class="LineNr">213 </span>  <span class="Delimiter">{</span>
+<span id="L214" class="LineNr">214 </span>    compare i, *top-addr
+<span id="L215" class="LineNr">215 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L216" class="LineNr">216 </span>    <span class="muComment"># if curr != expected, return false</span>
+<span id="L217" class="LineNr">217 </span>    <span class="Delimiter">{</span>
+<span id="L218" class="LineNr">218 </span>      <span class="PreProc">var</span> curr-a/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L219" class="LineNr">219 </span>      <span class="PreProc">var</span> expected/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> s
+<span id="L220" class="LineNr">220 </span>      <span class="Delimiter">{</span>
+<span id="L221" class="LineNr">221 </span>        compare expected, *curr-a
+<span id="L222" class="LineNr">222 </span>        <span class="PreProc">break-if-=</span>
+<span id="L223" class="LineNr">223 </span>        <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L224" class="LineNr">224 </span>      <span class="Delimiter">}</span>
+<span id="L225" class="LineNr">225 </span>    <span class="Delimiter">}</span>
+<span id="L226" class="LineNr">226 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L227" class="LineNr">227 </span>    <span class="PreProc">loop</span>
+<span id="L228" class="LineNr">228 </span>  <span class="Delimiter">}</span>
+<span id="L229" class="LineNr">229 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>   <span class="muComment"># true</span>
+<span id="L230" class="LineNr">230 </span><span class="Delimiter">}</span>
+<span id="L231" class="LineNr">231 </span>
+<span id="L232" class="LineNr">232 </span><span class="muComment"># compare from bottom</span>
+<span id="L233" class="LineNr">233 </span><span class="muComment"># beware: modifies 'stream', which must be disposed of after a false result</span>
+<span id="L234" class="LineNr">234 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L234'>suffix-match?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>), s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L235" class="LineNr">235 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L236" class="LineNr">236 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edi</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L237" class="LineNr">237 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L238" class="LineNr">238 </span>  <span class="PreProc">var</span> data/<span class="Constant">edi</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L239" class="LineNr">239 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L240" class="LineNr">240 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy *top-addr
+<span id="L241" class="LineNr">241 </span>  i <span class="Special">&lt;-</span> decrement
+<span id="L242" class="LineNr">242 </span>  <span class="Delimiter">{</span>
+<span id="L243" class="LineNr">243 </span>    compare i, <span class="Constant">0</span>
+<span id="L244" class="LineNr">244 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L245" class="LineNr">245 </span>    <span class="Delimiter">{</span>
+<span id="L246" class="LineNr">246 </span>      <span class="PreProc">var</span> curr-a/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L247" class="LineNr">247 </span>      <span class="PreProc">var</span> expected/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> s
+<span id="L248" class="LineNr">248 </span>      <span class="muComment"># if curr != expected, return false</span>
+<span id="L249" class="LineNr">249 </span>      <span class="Delimiter">{</span>
+<span id="L250" class="LineNr">250 </span>        compare expected, *curr-a
+<span id="L251" class="LineNr">251 </span>        <span class="PreProc">break-if-=</span>
+<span id="L252" class="LineNr">252 </span>        <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L253" class="LineNr">253 </span>      <span class="Delimiter">}</span>
+<span id="L254" class="LineNr">254 </span>    <span class="Delimiter">}</span>
+<span id="L255" class="LineNr">255 </span>    i <span class="Special">&lt;-</span> decrement
+<span id="L256" class="LineNr">256 </span>    <span class="PreProc">loop</span>
+<span id="L257" class="LineNr">257 </span>  <span class="Delimiter">}</span>
+<span id="L258" class="LineNr">258 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>   <span class="muComment"># true</span>
+<span id="L259" class="LineNr">259 </span><span class="Delimiter">}</span>
+<span id="L260" class="LineNr">260 </span>
+<span id="L261" class="LineNr">261 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='grapheme-stack.mu.html#L261'>grapheme-stack-is-decimal-integer?</a></span> _self: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L262" class="LineNr">262 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='grapheme-stack.mu.html#L3'>grapheme-stack</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L263" class="LineNr">263 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array grapheme) <span class="Special">&lt;-</span> get self, data
+<span id="L264" class="LineNr">264 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array grapheme) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L265" class="LineNr">265 </span>  <span class="PreProc">var</span> data/<span class="Constant">edx</span>: (addr array grapheme) <span class="Special">&lt;-</span> copy _data
+<span id="L266" class="LineNr">266 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, top
+<span id="L267" class="LineNr">267 </span>  <span class="PreProc">var</span> i/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L268" class="LineNr">268 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> copy <span class="Constant">1</span>/true
+<span id="L269" class="LineNr">269 </span>  $grapheme-stack-is-integer?:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L270" class="LineNr">270 </span>    compare i, *top-addr
+<span id="L271" class="LineNr">271 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L272" class="LineNr">272 </span>    <span class="PreProc">var</span> g/<span class="Constant">edx</span>: (addr grapheme) <span class="Special">&lt;-</span> index data, i
+<span id="L273" class="LineNr">273 </span>    result <span class="Special">&lt;-</span> <a href='../126write-int-decimal.subx.html#L299'>decimal-digit?</a> *g
+<span id="L274" class="LineNr">274 </span>    compare result, <span class="Constant">0</span>/false
+<span id="L275" class="LineNr">275 </span>    <span class="PreProc">break-if-=</span>
+<span id="L276" class="LineNr">276 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L277" class="LineNr">277 </span>    <span class="PreProc">loop</span>
+<span id="L278" class="LineNr">278 </span>  <span class="Delimiter">}</span>
+<span id="L279" class="LineNr">279 </span>  <span class="PreProc">return</span> result
+<span id="L280" class="LineNr">280 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/main.mu.html b/html/shell/main.mu.html
new file mode 100644
index 00000000..3db8fdab
--- /dev/null
+++ b/html/shell/main.mu.html
@@ -0,0 +1,104 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - shell/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; }
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+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.Special { color: #ff6060; }
+.LineNr { }
+.Constant { color: #008787; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muComment { color: #005faf; }
+-->
+</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 '#' */
+
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+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/main.mu'>https://github.com/akkartik/mu/blob/main/shell/main.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Experimental Mu shell</span>
+<span id="L2" class="LineNr"> 2 </span><span class="muComment"># A Lisp with indent-sensitivity and infix, no macros. Commas are ignored.</span>
+<span id="L3" class="LineNr"> 3 </span>
+<span id="L4" class="LineNr"> 4 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L4'>main</a></span> <span class="Delimiter">{</span>
+<span id="L5" class="LineNr"> 5 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L6" class="LineNr"> 6 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L7" class="LineNr"> 7 </span>  <a href='sandbox.mu.html#L8'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L8" class="LineNr"> 8 </span>  <a href='main.mu.html#L27'>load-sandbox-from-secondary-disk</a> <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L9" class="LineNr"> 9 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L10" class="LineNr">10 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L11" class="LineNr">11 </span>  width, height <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L50'>screen-size</a> <span class="Constant">0</span>/screen
+<span id="L12" class="LineNr">12 </span>  <span class="Delimiter">{</span>
+<span id="L13" class="LineNr">13 </span>    <a href='sandbox.mu.html#L41'>render-sandbox</a> <span class="Constant">0</span>/screen, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">2</span>/x, <span class="Constant">2</span>/y, width, height
+<span id="L14" class="LineNr">14 </span>    <span class="Delimiter">{</span>
+<span id="L15" class="LineNr">15 </span>      <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="Special">&lt;-</span> <a href='../102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>/keyboard
+<span id="L16" class="LineNr">16 </span>      compare key, <span class="Constant">0</span>
+<span id="L17" class="LineNr">17 </span>      <span class="PreProc">loop-if-=</span>
+<span id="L18" class="LineNr">18 </span>      <span class="muComment"># no way to quit right now; just reboot</span>
+<span id="L19" class="LineNr">19 </span>      <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, key
+<span id="L20" class="LineNr">20 </span>    <span class="Delimiter">}</span>
+<span id="L21" class="LineNr">21 </span>    <span class="PreProc">loop</span>
+<span id="L22" class="LineNr">22 </span>  <span class="Delimiter">}</span>
+<span id="L23" class="LineNr">23 </span><span class="Delimiter">}</span>
+<span id="L24" class="LineNr">24 </span>
+<span id="L25" class="LineNr">25 </span><span class="muComment"># Read a null-terminated sequence of keys from secondary disk and load them</span>
+<span id="L26" class="LineNr">26 </span><span class="muComment"># into sandbox.</span>
+<span id="L27" class="LineNr">27 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L27'>load-sandbox-from-secondary-disk</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Delimiter">{</span>
+<span id="L28" class="LineNr">28 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L29" class="LineNr">29 </span>  <span class="PreProc">var</span> s-storage: (stream byte <span class="Constant">0x200</span>)
+<span id="L30" class="LineNr">30 </span>  <span class="PreProc">var</span> s/<span class="Constant">ebx</span>: (addr stream byte) <span class="Special">&lt;-</span> address s-storage
+<span id="L31" class="LineNr">31 </span>  load-first-sector-from-primary-bus-secondary-drive s
+<span id="L32" class="LineNr">32 </span>  <span class="Delimiter">{</span>
+<span id="L33" class="LineNr">33 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> s
+<span id="L34" class="LineNr">34 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L35" class="LineNr">35 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L36" class="LineNr">36 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="Special">&lt;-</span> <a href='../112read-byte.subx.html#L13'>read-byte</a> s
+<span id="L37" class="LineNr">37 </span>    compare key, <span class="Constant">0</span>/null
+<span id="L38" class="LineNr">38 </span>    <span class="PreProc">break-if-=</span>
+<span id="L39" class="LineNr">39 </span>    <a href='sandbox.mu.html#L107'>edit-sandbox</a> self, key
+<span id="L40" class="LineNr">40 </span>    <span class="PreProc">loop</span>
+<span id="L41" class="LineNr">41 </span>  <span class="Delimiter">}</span>
+<span id="L42" class="LineNr">42 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/parse.mu.html b/html/shell/parse.mu.html
new file mode 100644
index 00000000..c751fb45
--- /dev/null
+++ b/html/shell/parse.mu.html
@@ -0,0 +1,198 @@
+<!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 - shell/parse.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; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.Constant { color: #008787; }
+.muComment { color: #005faf; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Special { color: #ff6060; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/parse.mu'>https://github.com/akkartik/mu/blob/main/shell/parse.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='parse.mu.html#L1'>parse-input</a></span> tokens: (addr stream <a href='cell.mu.html#L1'>cell</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> tokens
+<span id="L3" class="LineNr">  3 </span>  <span class="PreProc">var</span> empty?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> tokens
+<span id="L4" class="LineNr">  4 </span>  compare empty?, <span class="Constant">0</span>/false
+<span id="L5" class="LineNr">  5 </span>  <span class="Delimiter">{</span>
+<span id="L6" class="LineNr">  6 </span>    <span class="PreProc">break-if-=</span>
+<span id="L7" class="LineNr">  7 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;nothing to parse&quot;</span>
+<span id="L8" class="LineNr">  8 </span>    <span class="PreProc">return</span>
+<span id="L9" class="LineNr">  9 </span>  <span class="Delimiter">}</span>
+<span id="L10" class="LineNr"> 10 </span>  <span class="PreProc">var</span> close-paren?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='parse.mu.html#L26'>parse-sexpression</a> tokens, out, trace
+<span id="L11" class="LineNr"> 11 </span>  <span class="Delimiter">{</span>
+<span id="L12" class="LineNr"> 12 </span>    compare close-paren?, <span class="Constant">0</span>/false
+<span id="L13" class="LineNr"> 13 </span>    <span class="PreProc">break-if-=</span>
+<span id="L14" class="LineNr"> 14 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;')' is not a valid expression&quot;</span>
+<span id="L15" class="LineNr"> 15 </span>    <span class="PreProc">return</span>
+<span id="L16" class="LineNr"> 16 </span>  <span class="Delimiter">}</span>
+<span id="L17" class="LineNr"> 17 </span>  <span class="Delimiter">{</span>
+<span id="L18" class="LineNr"> 18 </span>    <span class="PreProc">var</span> empty?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> tokens
+<span id="L19" class="LineNr"> 19 </span>    compare empty?, <span class="Constant">0</span>/false
+<span id="L20" class="LineNr"> 20 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L21" class="LineNr"> 21 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;unexpected tokens at end; only type in a single expression at a time&quot;</span>
+<span id="L22" class="LineNr"> 22 </span>  <span class="Delimiter">}</span>
+<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">}</span>
+<span id="L24" class="LineNr"> 24 </span>
+<span id="L25" class="LineNr"> 25 </span><span class="muComment"># return value: true if close-paren was encountered</span>
+<span id="L26" class="LineNr"> 26 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='parse.mu.html#L26'>parse-sexpression</a></span> tokens: (addr stream <a href='cell.mu.html#L1'>cell</a>), _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L27" class="LineNr"> 27 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;parse&quot;</span>
+<span id="L28" class="LineNr"> 28 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L29" class="LineNr"> 29 </span>  <span class="PreProc">var</span> curr-token-storage: <a href='cell.mu.html#L1'>cell</a>
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">var</span> curr-token/<span class="Constant">ecx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address curr-token-storage
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> empty?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> tokens
+<span id="L32" class="LineNr"> 32 </span>  compare empty?, <span class="Constant">0</span>/false
+<span id="L33" class="LineNr"> 33 </span>  <span class="Delimiter">{</span>
+<span id="L34" class="LineNr"> 34 </span>    <span class="PreProc">break-if-=</span>
+<span id="L35" class="LineNr"> 35 </span>    <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;end of stream; never found a balancing ')'&quot;</span>
+<span id="L36" class="LineNr"> 36 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L37" class="LineNr"> 37 </span>  <span class="Delimiter">}</span>
+<span id="L38" class="LineNr"> 38 </span>  <a href='../309stream.subx.html#L107'>read-from-stream</a> tokens, curr-token
+<span id="L39" class="LineNr"> 39 </span>  $parse-sexpression:type-check: <span class="Delimiter">{</span>
+<span id="L40" class="LineNr"> 40 </span>    <span class="muComment"># not bracket -&gt; parse atom</span>
+<span id="L41" class="LineNr"> 41 </span>    <span class="PreProc">var</span> <a href='tokenize.mu.html#L533'>bracket-token?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L533'>bracket-token?</a> curr-token
+<span id="L42" class="LineNr"> 42 </span>    compare <a href='tokenize.mu.html#L533'>bracket-token?</a>, <span class="Constant">0</span>/false
+<span id="L43" class="LineNr"> 43 </span>    <span class="Delimiter">{</span>
+<span id="L44" class="LineNr"> 44 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L45" class="LineNr"> 45 </span>      <a href='parse.mu.html#L91'>parse-atom</a> curr-token, _out, trace
+<span id="L46" class="LineNr"> 46 </span>      <span class="PreProc">break</span> $parse-sexpression:type-check
+<span id="L47" class="LineNr"> 47 </span>    <span class="Delimiter">}</span>
+<span id="L48" class="LineNr"> 48 </span>    <span class="muComment"># open paren -&gt; parse list</span>
+<span id="L49" class="LineNr"> 49 </span>    <span class="PreProc">var</span> open-paren?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L543'>open-paren-token?</a> curr-token
+<span id="L50" class="LineNr"> 50 </span>    compare open-paren?, <span class="Constant">0</span>/false
+<span id="L51" class="LineNr"> 51 </span>    <span class="Delimiter">{</span>
+<span id="L52" class="LineNr"> 52 </span>      <span class="PreProc">break-if-=</span>
+<span id="L53" class="LineNr"> 53 </span>      <span class="PreProc">var</span> curr/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L54" class="LineNr"> 54 </span>      $parse-sexpression:list-loop: <span class="Delimiter">{</span>
+<span id="L55" class="LineNr"> 55 </span>        <a href='cell.mu.html#L73'>allocate-pair</a> curr
+<span id="L56" class="LineNr"> 56 </span>        <span class="PreProc">var</span> curr-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr
+<span id="L57" class="LineNr"> 57 </span>        <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr-addr, left
+<span id="L58" class="LineNr"> 58 </span>        <span class="Delimiter">{</span>
+<span id="L59" class="LineNr"> 59 </span>          <span class="PreProc">var</span> close-paren?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='parse.mu.html#L26'>parse-sexpression</a> tokens, left, trace
+<span id="L60" class="LineNr"> 60 </span>          compare close-paren?, <span class="Constant">0</span>/false
+<span id="L61" class="LineNr"> 61 </span>          <span class="PreProc">break-if-!=</span> $parse-sexpression:list-loop
+<span id="L62" class="LineNr"> 62 </span>        <span class="Delimiter">}</span>
+<span id="L63" class="LineNr"> 63 </span>        <span class="muComment">#</span>
+<span id="L64" class="LineNr"> 64 </span>        curr <span class="Special">&lt;-</span> get curr-addr, right
+<span id="L65" class="LineNr"> 65 </span>        <span class="PreProc">loop</span>
+<span id="L66" class="LineNr"> 66 </span>      <span class="Delimiter">}</span>
+<span id="L67" class="LineNr"> 67 </span>      <span class="PreProc">break</span> $parse-sexpression:type-check
+<span id="L68" class="LineNr"> 68 </span>    <span class="Delimiter">}</span>
+<span id="L69" class="LineNr"> 69 </span>    <span class="muComment"># close paren -&gt; parse list</span>
+<span id="L70" class="LineNr"> 70 </span>    <span class="PreProc">var</span> close-paren?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L557'>close-paren-token?</a> curr-token
+<span id="L71" class="LineNr"> 71 </span>    compare close-paren?, <span class="Constant">0</span>/false
+<span id="L72" class="LineNr"> 72 </span>    <span class="Delimiter">{</span>
+<span id="L73" class="LineNr"> 73 </span>      <span class="PreProc">break-if-=</span>
+<span id="L74" class="LineNr"> 74 </span>      <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L75" class="LineNr"> 75 </span>      <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L76" class="LineNr"> 76 </span>    <span class="Delimiter">}</span>
+<span id="L77" class="LineNr"> 77 </span>    <span class="muComment"># otherwise abort</span>
+<span id="L78" class="LineNr"> 78 </span>    <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L79" class="LineNr"> 79 </span>    <span class="PreProc">var</span> stream/<span class="Constant">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L80" class="LineNr"> 80 </span>    <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;unexpected token &quot;</span>
+<span id="L81" class="LineNr"> 81 </span>    <span class="PreProc">var</span> curr-token-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get curr-token, text-data
+<span id="L82" class="LineNr"> 82 </span>    <span class="PreProc">var</span> curr-token-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-token-data-ah
+<span id="L83" class="LineNr"> 83 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> curr-token-data
+<span id="L84" class="LineNr"> 84 </span>    <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, curr-token-data
+<span id="L85" class="LineNr"> 85 </span>    trace trace, <span class="Constant">&quot;error&quot;</span>, stream
+<span id="L86" class="LineNr"> 86 </span>  <span class="Delimiter">}</span>
+<span id="L87" class="LineNr"> 87 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L88" class="LineNr"> 88 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<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='parse.mu.html#L91'>parse-atom</a></span> _curr-token: (addr <a href='cell.mu.html#L1'>cell</a>), _out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L92" class="LineNr"> 92 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;parse atom&quot;</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> curr-token/<span class="Constant">ecx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _curr-token
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> curr-token-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get curr-token, text-data
+<span id="L95" class="LineNr"> 95 </span>  <span class="PreProc">var</span> _curr-token-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-token-data-ah
+<span id="L96" class="LineNr"> 96 </span>  <span class="PreProc">var</span> curr-token-data/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _curr-token-data
+<span id="L97" class="LineNr"> 97 </span>  trace trace, <span class="Constant">&quot;read&quot;</span>, curr-token-data
+<span id="L98" class="LineNr"> 98 </span>  <span class="muComment"># number</span>
+<span id="L99" class="LineNr"> 99 </span>  <span class="PreProc">var</span> <a href='tokenize.mu.html#L523'>number-token?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L523'>number-token?</a> curr-token
+<span id="L100" class="LineNr">100 </span>  compare <a href='tokenize.mu.html#L523'>number-token?</a>, <span class="Constant">0</span>/false
+<span id="L101" class="LineNr">101 </span>  <span class="Delimiter">{</span>
+<span id="L102" class="LineNr">102 </span>    <span class="PreProc">break-if-=</span>
+<span id="L103" class="LineNr">103 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> curr-token-data
+<span id="L104" class="LineNr">104 </span>    <span class="PreProc">var</span> _val/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='../311decimal-int.subx.html#L48'>parse-decimal-int-from-stream</a> curr-token-data
+<span id="L105" class="LineNr">105 </span>    <span class="PreProc">var</span> val/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy _val
+<span id="L106" class="LineNr">106 </span>    <span class="PreProc">var</span> val-float/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> convert val
+<span id="L107" class="LineNr">107 </span>    <a href='cell.mu.html#L39'>allocate-number</a> _out
+<span id="L108" class="LineNr">108 </span>    <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L109" class="LineNr">109 </span>    <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L110" class="LineNr">110 </span>    <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr float) <span class="Special">&lt;-</span> get out-addr, number-data
+<span id="L111" class="LineNr">111 </span>    copy-to *dest, val-float
+<span id="L112" class="LineNr">112 </span>    <span class="Delimiter">{</span>
+<span id="L113" class="LineNr">113 </span>      <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L114" class="LineNr">114 </span>      <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L115" class="LineNr">115 </span>      <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; number &quot;</span>
+<span id="L116" class="LineNr">116 </span>      <a href='print.mu.html#L65'>print-number</a> out-addr, stream, <span class="Constant">0</span>/no-trace
+<span id="L117" class="LineNr">117 </span>      trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L118" class="LineNr">118 </span>    <span class="Delimiter">}</span>
+<span id="L119" class="LineNr">119 </span>    <span class="PreProc">return</span>
+<span id="L120" class="LineNr">120 </span>  <span class="Delimiter">}</span>
+<span id="L121" class="LineNr">121 </span>  <span class="muComment"># default: symbol</span>
+<span id="L122" class="LineNr">122 </span>  <span class="muComment"># just copy token data</span>
+<span id="L123" class="LineNr">123 </span>  <a href='cell.mu.html#L16'>allocate-symbol</a> _out
+<span id="L124" class="LineNr">124 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> curr-token-data-ah/<span class="Constant">ecx</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get curr-token, text-data
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> dest-ah/<span class="Constant">edx</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get out-addr, text-data
+<span id="L128" class="LineNr">128 </span>  copy-object curr-token-data-ah, dest-ah
+<span id="L129" class="LineNr">129 </span>  <span class="Delimiter">{</span>
+<span id="L130" class="LineNr">130 </span>    <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L131" class="LineNr">131 </span>    <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L132" class="LineNr">132 </span>    <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; symbol &quot;</span>
+<span id="L133" class="LineNr">133 </span>    <a href='print.mu.html#L48'>print-symbol</a> out-addr, stream, <span class="Constant">0</span>/no-trace
+<span id="L134" class="LineNr">134 </span>    trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L135" class="LineNr">135 </span>  <span class="Delimiter">}</span>
+<span id="L136" class="LineNr">136 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/print.mu.html b/html/shell/print.mu.html
new file mode 100644
index 00000000..f82ded07
--- /dev/null
+++ b/html/shell/print.mu.html
@@ -0,0 +1,344 @@
+<!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 - shell/print.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; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.Constant { color: #008787; }
+.muComment { color: #005faf; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.Special { color: #ff6060; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/print.mu'>https://github.com/akkartik/mu/blob/main/shell/print.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L1'>print-cell</a></span> _in: (addr handle <a href='cell.mu.html#L1'>cell</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;print&quot;</span>, <span class="Constant">&quot;print&quot;</span>
+<span id="L3" class="LineNr">  3 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L4" class="LineNr">  4 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L5" class="LineNr">  5 </span>  <span class="PreProc">var</span> in-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *in
+<span id="L6" class="LineNr">  6 </span>  <span class="Delimiter">{</span>
+<span id="L7" class="LineNr">  7 </span>    <span class="PreProc">var</span> <a href='print.mu.html#L116'>nil?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> in-addr
+<span id="L8" class="LineNr">  8 </span>    compare <a href='print.mu.html#L116'>nil?</a>, <span class="Constant">0</span>/false
+<span id="L9" class="LineNr">  9 </span>    <span class="PreProc">break-if-=</span>
+<span id="L10" class="LineNr"> 10 </span>    <a href='../108write.subx.html#L11'>write</a> out, <span class="Constant">&quot;()&quot;</span>
+<span id="L11" class="LineNr"> 11 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L12" class="LineNr"> 12 </span>    <span class="PreProc">return</span>
+<span id="L13" class="LineNr"> 13 </span>  <span class="Delimiter">}</span>
+<span id="L14" class="LineNr"> 14 </span>  <span class="PreProc">var</span> in-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get in-addr, <span class="PreProc">type</span>
+<span id="L15" class="LineNr"> 15 </span>  compare *in-type, <span class="Constant">0</span>/pair
+<span id="L16" class="LineNr"> 16 </span>  <span class="Delimiter">{</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L18" class="LineNr"> 18 </span>    <a href='print.mu.html#L77'>print-list</a> in-addr, out, trace
+<span id="L19" class="LineNr"> 19 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L20" class="LineNr"> 20 </span>    <span class="PreProc">return</span>
+<span id="L21" class="LineNr"> 21 </span>  <span class="Delimiter">}</span>
+<span id="L22" class="LineNr"> 22 </span>  compare *in-type, <span class="Constant">1</span>/number
+<span id="L23" class="LineNr"> 23 </span>  <span class="Delimiter">{</span>
+<span id="L24" class="LineNr"> 24 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L25" class="LineNr"> 25 </span>    <a href='print.mu.html#L65'>print-number</a> in-addr, out, trace
+<span id="L26" class="LineNr"> 26 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">return</span>
+<span id="L28" class="LineNr"> 28 </span>  <span class="Delimiter">}</span>
+<span id="L29" class="LineNr"> 29 </span>  compare *in-type, <span class="Constant">2</span>/symbol
+<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='print.mu.html#L48'>print-symbol</a> in-addr, out, trace
+<span id="L33" class="LineNr"> 33 </span>    <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L34" class="LineNr"> 34 </span>    <span class="PreProc">return</span>
+<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 id="L38" class="LineNr"> 38 </span><span class="muComment"># debug helper</span>
+<span id="L39" class="LineNr"> 39 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L39'>dump-cell</a></span> in-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L41" class="LineNr"> 41 </span>  <span class="PreProc">var</span> stream/<span class="Constant">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L42" class="LineNr"> 42 </span>  <a href='print.mu.html#L1'>print-cell</a> in-ah, stream, <span class="Constant">0</span>/no-trace
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> d1/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L44" class="LineNr"> 44 </span>  <span class="PreProc">var</span> d2/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L45" class="LineNr"> 45 </span>  d1, d2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L181'>draw-stream-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, stream, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x80</span>/xmax, <span class="Constant">0x30</span>/ymax, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L46" class="LineNr"> 46 </span><span class="Delimiter">}</span>
+<span id="L47" class="LineNr"> 47 </span>
+<span id="L48" class="LineNr"> 48 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L48'>print-symbol</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L49" class="LineNr"> 49 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;print&quot;</span>, <span class="Constant">&quot;symbol&quot;</span>
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> in/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get in, text-data
+<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L53" class="LineNr"> 53 </span>  <span class="PreProc">var</span> data/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _data
+<span id="L54" class="LineNr"> 54 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> data
+<span id="L55" class="LineNr"> 55 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> out, data
+<span id="L56" class="LineNr"> 56 </span>  <span class="muComment"># trace</span>
+<span id="L57" class="LineNr"> 57 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> data
+<span id="L58" class="LineNr"> 58 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L59" class="LineNr"> 59 </span>  <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L60" class="LineNr"> 60 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; symbol &quot;</span>
+<span id="L61" class="LineNr"> 61 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, data
+<span id="L62" class="LineNr"> 62 </span>  trace trace, <span class="Constant">&quot;print&quot;</span>, stream
+<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='print.mu.html#L65'>print-number</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> in/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: (addr float) <span class="Special">&lt;-</span> get in, number-data
+<span id="L68" class="LineNr"> 68 </span>  <a href='../412render-float-decimal.mu.html#L163'>write-float-decimal-approximate</a> out, *val, <span class="Constant">3</span>/precision
+<span id="L69" class="LineNr"> 69 </span>  <span class="muComment"># trace</span>
+<span id="L70" class="LineNr"> 70 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L71" class="LineNr"> 71 </span>  <span class="PreProc">var</span> stream/<span class="Constant">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L72" class="LineNr"> 72 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; number &quot;</span>
+<span id="L73" class="LineNr"> 73 </span>  <a href='../412render-float-decimal.mu.html#L163'>write-float-decimal-approximate</a> stream, *val, <span class="Constant">3</span>/precision
+<span id="L74" class="LineNr"> 74 </span>  trace trace, <span class="Constant">&quot;print&quot;</span>, stream
+<span id="L75" class="LineNr"> 75 </span><span class="Delimiter">}</span>
+<span id="L76" class="LineNr"> 76 </span>
+<span id="L77" class="LineNr"> 77 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L77'>print-list</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L78" class="LineNr"> 78 </span>  <span class="PreProc">var</span> curr/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L79" class="LineNr"> 79 </span>  <a href='../108write.subx.html#L11'>write</a> out, <span class="Constant">&quot;(&quot;</span>
+<span id="L80" class="LineNr"> 80 </span>  $print-list:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L81" class="LineNr"> 81 </span>    <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr, left
+<span id="L82" class="LineNr"> 82 </span>    <a href='print.mu.html#L1'>print-cell</a> left, out, trace
+<span id="L83" class="LineNr"> 83 </span>    <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr, right
+<span id="L84" class="LineNr"> 84 </span>    <span class="PreProc">var</span> right-addr/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *right
+<span id="L85" class="LineNr"> 85 </span>    <span class="Delimiter">{</span>
+<span id="L86" class="LineNr"> 86 </span>      compare right-addr, <span class="Constant">0</span>
+<span id="L87" class="LineNr"> 87 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L88" class="LineNr"> 88 </span>      <a href='../501draw-text.mu.html#L459'>abort</a> <span class="Constant">&quot;null encountered&quot;</span>
+<span id="L89" class="LineNr"> 89 </span>    <span class="Delimiter">}</span>
+<span id="L90" class="LineNr"> 90 </span>    <span class="Delimiter">{</span>
+<span id="L91" class="LineNr"> 91 </span>      <span class="PreProc">var</span> right-nil?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='print.mu.html#L116'>nil?</a> right-addr
+<span id="L92" class="LineNr"> 92 </span>      compare right-nil?, <span class="Constant">0</span>/false
+<span id="L93" class="LineNr"> 93 </span>      <span class="Delimiter">{</span>
+<span id="L94" class="LineNr"> 94 </span>        <span class="PreProc">break-if-=</span>
+<span id="L95" class="LineNr"> 95 </span>        <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;print&quot;</span>, <span class="Constant">&quot;right is null&quot;</span>
+<span id="L96" class="LineNr"> 96 </span>        <span class="PreProc">break</span> $print-list:<span class="PreProc">loop</span>
+<span id="L97" class="LineNr"> 97 </span>      <span class="Delimiter">}</span>
+<span id="L98" class="LineNr"> 98 </span>    <span class="Delimiter">}</span>
+<span id="L99" class="LineNr"> 99 </span>    <a href='../108write.subx.html#L11'>write</a> out, <span class="Constant">&quot; &quot;</span>
+<span id="L100" class="LineNr">100 </span>    <span class="PreProc">var</span> right-type-addr/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get right-addr, <span class="PreProc">type</span>
+<span id="L101" class="LineNr">101 </span>    <span class="Delimiter">{</span>
+<span id="L102" class="LineNr">102 </span>      compare *right-type-addr, <span class="Constant">0</span>/pair
+<span id="L103" class="LineNr">103 </span>      <span class="PreProc">break-if-=</span>
+<span id="L104" class="LineNr">104 </span>      <a href='../108write.subx.html#L11'>write</a> out, <span class="Constant">&quot;. &quot;</span>
+<span id="L105" class="LineNr">105 </span>      <a href='print.mu.html#L1'>print-cell</a> right, out, trace
+<span id="L106" class="LineNr">106 </span>      <span class="PreProc">break</span> $print-list:<span class="PreProc">loop</span>
+<span id="L107" class="LineNr">107 </span>    <span class="Delimiter">}</span>
+<span id="L108" class="LineNr">108 </span>    curr <span class="Special">&lt;-</span> copy right-addr
+<span id="L109" class="LineNr">109 </span>    <span class="PreProc">loop</span>
+<span id="L110" class="LineNr">110 </span>  <span class="Delimiter">}</span>
+<span id="L111" class="LineNr">111 </span>  <a href='../108write.subx.html#L11'>write</a> out, <span class="Constant">&quot;)&quot;</span>
+<span id="L112" class="LineNr">112 </span><span class="Delimiter">}</span>
+<span id="L113" class="LineNr">113 </span>
+<span id="L114" class="LineNr">114 </span><span class="muComment"># Most lisps intern nil, but we don't really have globals yet, so we'll be</span>
+<span id="L115" class="LineNr">115 </span><span class="muComment"># less efficient for now.</span>
+<span id="L116" class="LineNr">116 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L116'>nil?</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L117" class="LineNr">117 </span>  <span class="PreProc">var</span> in/<span class="Constant">esi</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L118" class="LineNr">118 </span>  <span class="muComment"># if type != pair, return false</span>
+<span id="L119" class="LineNr">119 </span>  <span class="PreProc">var</span> <span class="PreProc">type</span>/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get in, <span class="PreProc">type</span>
+<span id="L120" class="LineNr">120 </span>  compare *<span class="PreProc">type</span>, <span class="Constant">0</span>/pair
+<span id="L121" class="LineNr">121 </span>  <span class="Delimiter">{</span>
+<span id="L122" class="LineNr">122 </span>    <span class="PreProc">break-if-=</span>
+<span id="L123" class="LineNr">123 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L124" class="LineNr">124 </span>  <span class="Delimiter">}</span>
+<span id="L125" class="LineNr">125 </span>  <span class="muComment"># if left != null, return false</span>
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> left-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get in, left
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> left/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *left-ah
+<span id="L128" class="LineNr">128 </span>  compare left, <span class="Constant">0</span>
+<span id="L129" class="LineNr">129 </span>  <span class="Delimiter">{</span>
+<span id="L130" class="LineNr">130 </span>    <span class="PreProc">break-if-=</span>
+<span id="L131" class="LineNr">131 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L132" class="LineNr">132 </span>  <span class="Delimiter">}</span>
+<span id="L133" class="LineNr">133 </span>  <span class="muComment"># if right != null, return false</span>
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> right-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get in, right
+<span id="L135" class="LineNr">135 </span>  <span class="PreProc">var</span> right/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *right-ah
+<span id="L136" class="LineNr">136 </span>  compare right, <span class="Constant">0</span>
+<span id="L137" class="LineNr">137 </span>  <span class="Delimiter">{</span>
+<span id="L138" class="LineNr">138 </span>    <span class="PreProc">break-if-=</span>
+<span id="L139" class="LineNr">139 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L140" class="LineNr">140 </span>  <span class="Delimiter">}</span>
+<span id="L141" class="LineNr">141 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<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="muTest"><a href='print.mu.html#L144'>test-print-cell-zero</a></span> <span class="Delimiter">{</span>
+<span id="L145" class="LineNr">145 </span>  <span class="PreProc">var</span> num-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L146" class="LineNr">146 </span>  <span class="PreProc">var</span> num/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address num-storage
+<span id="L147" class="LineNr">147 </span>  <a href='cell.mu.html#L55'>new-integer</a> num, <span class="Constant">0</span>
+<span id="L148" class="LineNr">148 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L149" class="LineNr">149 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L150" class="LineNr">150 </span>  <a href='print.mu.html#L1'>print-cell</a> num, out, <span class="Constant">0</span>/no-trace
+<span id="L151" class="LineNr">151 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;0&quot;</span>, <span class="Constant">&quot;F - test-print-cell-zero&quot;</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="muTest"><a href='print.mu.html#L154'>test-print-cell-integer</a></span> <span class="Delimiter">{</span>
+<span id="L155" class="LineNr">155 </span>  <span class="PreProc">var</span> num-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L156" class="LineNr">156 </span>  <span class="PreProc">var</span> num/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address num-storage
+<span id="L157" class="LineNr">157 </span>  <a href='cell.mu.html#L55'>new-integer</a> num, <span class="Constant">1</span>
+<span id="L158" class="LineNr">158 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L159" class="LineNr">159 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L160" class="LineNr">160 </span>  <a href='print.mu.html#L1'>print-cell</a> num, out, <span class="Constant">0</span>/no-trace
+<span id="L161" class="LineNr">161 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;1&quot;</span>, <span class="Constant">&quot;F - test-print-cell-integer&quot;</span>
+<span id="L162" class="LineNr">162 </span><span class="Delimiter">}</span>
+<span id="L163" class="LineNr">163 </span>
+<span id="L164" class="LineNr">164 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L164'>test-print-cell-integer-2</a></span> <span class="Delimiter">{</span>
+<span id="L165" class="LineNr">165 </span>  <span class="PreProc">var</span> num-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L166" class="LineNr">166 </span>  <span class="PreProc">var</span> num/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address num-storage
+<span id="L167" class="LineNr">167 </span>  <a href='cell.mu.html#L55'>new-integer</a> num, <span class="Constant">0x30</span>
+<span id="L168" class="LineNr">168 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L169" class="LineNr">169 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L170" class="LineNr">170 </span>  <a href='print.mu.html#L1'>print-cell</a> num, out, <span class="Constant">0</span>/no-trace
+<span id="L171" class="LineNr">171 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;48&quot;</span>, <span class="Constant">&quot;F - test-print-cell-integer-2&quot;</span>
+<span id="L172" class="LineNr">172 </span><span class="Delimiter">}</span>
+<span id="L173" class="LineNr">173 </span>
+<span id="L174" class="LineNr">174 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L174'>test-print-cell-fraction</a></span> <span class="Delimiter">{</span>
+<span id="L175" class="LineNr">175 </span>  <span class="PreProc">var</span> num-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L176" class="LineNr">176 </span>  <span class="PreProc">var</span> num/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address num-storage
+<span id="L177" class="LineNr">177 </span>  <span class="PreProc">var</span> val/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> <a href='../408float.mu.html#L18'>rational</a> <span class="Constant">1</span>, <span class="Constant">2</span>
+<span id="L178" class="LineNr">178 </span>  <a href='cell.mu.html#L68'>new-float</a> num, val
+<span id="L179" class="LineNr">179 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L180" class="LineNr">180 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L181" class="LineNr">181 </span>  <a href='print.mu.html#L1'>print-cell</a> num, out, <span class="Constant">0</span>/no-trace
+<span id="L182" class="LineNr">182 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;0.5&quot;</span>, <span class="Constant">&quot;F - test-print-cell-fraction&quot;</span>
+<span id="L183" class="LineNr">183 </span><span class="Delimiter">}</span>
+<span id="L184" class="LineNr">184 </span>
+<span id="L185" class="LineNr">185 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L185'>test-print-cell-symbol</a></span> <span class="Delimiter">{</span>
+<span id="L186" class="LineNr">186 </span>  <span class="PreProc">var</span> sym-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L187" class="LineNr">187 </span>  <span class="PreProc">var</span> sym/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address sym-storage
+<span id="L188" class="LineNr">188 </span>  <a href='cell.mu.html#L34'>new-symbol</a> sym, <span class="Constant">&quot;abc&quot;</span>
+<span id="L189" class="LineNr">189 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L190" class="LineNr">190 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L191" class="LineNr">191 </span>  <a href='print.mu.html#L1'>print-cell</a> sym, out, <span class="Constant">0</span>/no-trace
+<span id="L192" class="LineNr">192 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;abc&quot;</span>, <span class="Constant">&quot;F - test-print-cell-symbol&quot;</span>
+<span id="L193" class="LineNr">193 </span><span class="Delimiter">}</span>
+<span id="L194" class="LineNr">194 </span>
+<span id="L195" class="LineNr">195 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L195'>test-print-cell-nil-list</a></span> <span class="Delimiter">{</span>
+<span id="L196" class="LineNr">196 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L197" class="LineNr">197 </span>  <span class="PreProc">var</span> nil/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L198" class="LineNr">198 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil
+<span id="L199" class="LineNr">199 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L200" class="LineNr">200 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L201" class="LineNr">201 </span>  <a href='print.mu.html#L1'>print-cell</a> nil, out, <span class="Constant">0</span>/no-trace
+<span id="L202" class="LineNr">202 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;()&quot;</span>, <span class="Constant">&quot;F - test-print-cell-nil-list&quot;</span>
+<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="muTest"><a href='print.mu.html#L205'>test-print-cell-singleton-list</a></span> <span class="Delimiter">{</span>
+<span id="L206" class="LineNr">206 </span>  <span class="muComment"># list</span>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> left-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address left-storage
+<span id="L209" class="LineNr">209 </span>  <a href='cell.mu.html#L34'>new-symbol</a> left, <span class="Constant">&quot;abc&quot;</span>
+<span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L211" class="LineNr">211 </span>  <span class="PreProc">var</span> nil/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L212" class="LineNr">212 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil
+<span id="L213" class="LineNr">213 </span>  <span class="PreProc">var</span> list-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L214" class="LineNr">214 </span>  <span class="PreProc">var</span> list/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address list-storage
+<span id="L215" class="LineNr">215 </span>  <a href='cell.mu.html#L88'>new-pair</a> list, *left, *nil
+<span id="L216" class="LineNr">216 </span>  <span class="muComment">#</span>
+<span id="L217" class="LineNr">217 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L218" class="LineNr">218 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L219" class="LineNr">219 </span>  <a href='print.mu.html#L1'>print-cell</a> list, out, <span class="Constant">0</span>/no-trace
+<span id="L220" class="LineNr">220 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;(abc)&quot;</span>, <span class="Constant">&quot;F - test-print-cell-singleton-list&quot;</span>
+<span id="L221" class="LineNr">221 </span><span class="Delimiter">}</span>
+<span id="L222" class="LineNr">222 </span>
+<span id="L223" class="LineNr">223 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L223'>test-print-cell-list</a></span> <span class="Delimiter">{</span>
+<span id="L224" class="LineNr">224 </span>  <span class="muComment"># list = cons &quot;abc&quot;, nil</span>
+<span id="L225" class="LineNr">225 </span>  <span class="PreProc">var</span> left-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L226" class="LineNr">226 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address left-storage
+<span id="L227" class="LineNr">227 </span>  <a href='cell.mu.html#L34'>new-symbol</a> left, <span class="Constant">&quot;abc&quot;</span>
+<span id="L228" class="LineNr">228 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L229" class="LineNr">229 </span>  <span class="PreProc">var</span> nil/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L230" class="LineNr">230 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil
+<span id="L231" class="LineNr">231 </span>  <span class="PreProc">var</span> list-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L232" class="LineNr">232 </span>  <span class="PreProc">var</span> list/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address list-storage
+<span id="L233" class="LineNr">233 </span>  <a href='cell.mu.html#L88'>new-pair</a> list, *left, *nil
+<span id="L234" class="LineNr">234 </span>  <span class="muComment"># list = cons 64, list</span>
+<span id="L235" class="LineNr">235 </span>  <a href='cell.mu.html#L55'>new-integer</a> left, <span class="Constant">0x40</span>
+<span id="L236" class="LineNr">236 </span>  <a href='cell.mu.html#L88'>new-pair</a> list, *left, *list
+<span id="L237" class="LineNr">237 </span>  <span class="muComment">#</span>
+<span id="L238" class="LineNr">238 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L239" class="LineNr">239 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L240" class="LineNr">240 </span>  <a href='print.mu.html#L1'>print-cell</a> list, out, <span class="Constant">0</span>/no-trace
+<span id="L241" class="LineNr">241 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;(64 abc)&quot;</span>, <span class="Constant">&quot;F - test-print-cell-list&quot;</span>
+<span id="L242" class="LineNr">242 </span><span class="Delimiter">}</span>
+<span id="L243" class="LineNr">243 </span>
+<span id="L244" class="LineNr">244 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L244'>test-print-cell-list-of-nil</a></span> <span class="Delimiter">{</span>
+<span id="L245" class="LineNr">245 </span>  <span class="muComment"># list = cons &quot;abc&quot;, nil</span>
+<span id="L246" class="LineNr">246 </span>  <span class="PreProc">var</span> left-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L247" class="LineNr">247 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address left-storage
+<span id="L248" class="LineNr">248 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> left
+<span id="L249" class="LineNr">249 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L250" class="LineNr">250 </span>  <span class="PreProc">var</span> nil/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L251" class="LineNr">251 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil
+<span id="L252" class="LineNr">252 </span>  <span class="PreProc">var</span> list-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> list/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address list-storage
+<span id="L254" class="LineNr">254 </span>  <a href='cell.mu.html#L88'>new-pair</a> list, *left, *nil
+<span id="L255" class="LineNr">255 </span>  <span class="muComment"># list = cons 64, list</span>
+<span id="L256" class="LineNr">256 </span>  <a href='cell.mu.html#L55'>new-integer</a> left, <span class="Constant">0x40</span>
+<span id="L257" class="LineNr">257 </span>  <a href='cell.mu.html#L88'>new-pair</a> list, *left, *list
+<span id="L258" class="LineNr">258 </span>  <span class="muComment">#</span>
+<span id="L259" class="LineNr">259 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L260" class="LineNr">260 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L261" class="LineNr">261 </span>  <a href='print.mu.html#L1'>print-cell</a> list, out, <span class="Constant">0</span>/no-trace
+<span id="L262" class="LineNr">262 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;(64 ())&quot;</span>, <span class="Constant">&quot;F - test-print-cell-list-nil&quot;</span>
+<span id="L263" class="LineNr">263 </span><span class="Delimiter">}</span>
+<span id="L264" class="LineNr">264 </span>
+<span id="L265" class="LineNr">265 </span><span class="PreProc">fn</span> <span class="muTest"><a href='print.mu.html#L265'>test-print-dotted-list</a></span> <span class="Delimiter">{</span>
+<span id="L266" class="LineNr">266 </span>  <span class="muComment"># list = cons 64, &quot;abc&quot;</span>
+<span id="L267" class="LineNr">267 </span>  <span class="PreProc">var</span> left-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L268" class="LineNr">268 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address left-storage
+<span id="L269" class="LineNr">269 </span>  <a href='cell.mu.html#L34'>new-symbol</a> left, <span class="Constant">&quot;abc&quot;</span>
+<span id="L270" class="LineNr">270 </span>  <span class="PreProc">var</span> right-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L271" class="LineNr">271 </span>  <span class="PreProc">var</span> right/<span class="Constant">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address right-storage
+<span id="L272" class="LineNr">272 </span>  <a href='cell.mu.html#L55'>new-integer</a> right, <span class="Constant">0x40</span>
+<span id="L273" class="LineNr">273 </span>  <span class="PreProc">var</span> list-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L274" class="LineNr">274 </span>  <span class="PreProc">var</span> list/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address list-storage
+<span id="L275" class="LineNr">275 </span>  <a href='cell.mu.html#L88'>new-pair</a> list, *left, *right
+<span id="L276" class="LineNr">276 </span>  <span class="muComment">#</span>
+<span id="L277" class="LineNr">277 </span>  <span class="PreProc">var</span> out-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L278" class="LineNr">278 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address out-storage
+<span id="L279" class="LineNr">279 </span>  <a href='print.mu.html#L1'>print-cell</a> list, out, <span class="Constant">0</span>/no-trace
+<span id="L280" class="LineNr">280 </span>  <a href='../109stream-equal.subx.html#L194'>check-stream-equal</a> out, <span class="Constant">&quot;(abc . 64)&quot;</span>, <span class="Constant">&quot;F - test-print-dotted-list&quot;</span>
+<span id="L281" class="LineNr">281 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/read.mu.html b/html/shell/read.mu.html
new file mode 100644
index 00000000..dc3b51c2
--- /dev/null
+++ b/html/shell/read.mu.html
@@ -0,0 +1,76 @@
+<!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 - shell/read.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; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.Constant { color: #008787; }
+.muComment { color: #005faf; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.Special { color: #ff6060; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/read.mu'>https://github.com/akkartik/mu/blob/main/shell/read.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='read.mu.html#L1'>read-cell</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L2" class="LineNr"> 2 </span>  <span class="PreProc">var</span> tokens-storage: (stream <a href='cell.mu.html#L1'>cell</a> <span class="Constant">0x100</span>)
+<span id="L3" class="LineNr"> 3 </span>  <span class="PreProc">var</span> tokens/<span class="Constant">ecx</span>: (addr stream <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address tokens-storage
+<span id="L4" class="LineNr"> 4 </span>  <a href='tokenize.mu.html#L5'>tokenize</a> in, tokens, trace
+<span id="L5" class="LineNr"> 5 </span>  <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L54'>has-errors?</a> trace
+<span id="L6" class="LineNr"> 6 </span>  compare error?, <span class="Constant">0</span>/false
+<span id="L7" class="LineNr"> 7 </span>  <span class="Delimiter">{</span>
+<span id="L8" class="LineNr"> 8 </span>    <span class="PreProc">break-if-=</span>
+<span id="L9" class="LineNr"> 9 </span>    <span class="PreProc">return</span>
+<span id="L10" class="LineNr">10 </span>  <span class="Delimiter">}</span>
+<span id="L11" class="LineNr">11 </span>  <span class="muComment"># TODO: insert parens</span>
+<span id="L12" class="LineNr">12 </span>  <span class="muComment"># TODO: transform infix</span>
+<span id="L13" class="LineNr">13 </span>  <a href='parse.mu.html#L1'>parse-input</a> tokens, out, trace
+<span id="L14" class="LineNr">14 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/sandbox.mu.html b/html/shell/sandbox.mu.html
new file mode 100644
index 00000000..fd5dd78b
--- /dev/null
+++ b/html/shell/sandbox.mu.html
@@ -0,0 +1,364 @@
+<!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 - shell/sandbox.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; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.CommentedCode { color: #8a8a8a; }
+.Constant { color: #008787; }
+.muComment { color: #005faf; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.Special { color: #ff6060; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/sandbox.mu'>https://github.com/akkartik/mu/blob/main/shell/sandbox.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="PreProc">type</span> <a href='sandbox.mu.html#L1'>sandbox</a> <span class="Delimiter">{</span>
+<span id="L2" class="LineNr">  2 </span>  data: (handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>)
+<span id="L3" class="LineNr">  3 </span>  value: (handle stream byte)
+<span id="L4" class="LineNr">  4 </span>  trace: (handle trace)
+<span id="L5" class="LineNr">  5 </span>  cursor-in-trace?: boolean
+<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='sandbox.mu.html#L8'>initialize-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <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='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L10" class="LineNr"> 10 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L11" class="LineNr"> 11 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> data-ah
+<span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L13" class="LineNr"> 13 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> data, <span class="Constant">0x1000</span>/4KB
+<span id="L14" class="LineNr"> 14 </span>  <span class="PreProc">var</span> value-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get self, value
+<span id="L15" class="LineNr"> 15 </span>  populate-stream value-ah, <span class="Constant">0x1000</span>/4KB
+<span id="L16" class="LineNr"> 16 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L17" class="LineNr"> 17 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> trace-ah
+<span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> trace/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L19" class="LineNr"> 19 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> trace, <span class="Constant">0x1000</span>/lines, <span class="Constant">0x80</span>/visible-lines
+<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="muComment">## some helpers for tests</span>
+<span id="L23" class="LineNr"> 23 </span>
+<span id="L24" class="LineNr"> 24 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L24'>initialize-sandbox-with</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L25" class="LineNr"> 25 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L26" class="LineNr"> 26 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L27" class="LineNr"> 27 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> data-ah
+<span id="L28" class="LineNr"> 28 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L29" class="LineNr"> 29 </span>  <a href='gap-buffer.mu.html#L20'>initialize-gap-buffer-with</a> data, s
+<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='sandbox.mu.html#L32'>allocate-sandbox-with</a></span> _out: (addr handle <a href='sandbox.mu.html#L1'>sandbox</a>), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L33" class="LineNr"> 33 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr handle <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L34" class="LineNr"> 34 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> out
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> out-addr/<span class="Constant">eax</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out
+<span id="L36" class="LineNr"> 36 </span>  <a href='sandbox.mu.html#L24'>initialize-sandbox-with</a> out-addr, s
+<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">##</span>
+<span id="L40" class="LineNr"> 40 </span>
+<span id="L41" class="LineNr"> 41 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L41'>render-sandbox</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), xmin: int, ymin: int, xmax: int, ymax: int <span class="Delimiter">{</span>
+<span id="L42" class="LineNr"> 42 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L44" class="LineNr"> 44 </span>  <span class="muComment"># data</span>
+<span id="L45" class="LineNr"> 45 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L46" class="LineNr"> 46 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L47" class="LineNr"> 47 </span>  <span class="PreProc">var</span> data/<span class="Constant">edx</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _data
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy xmin
+<span id="L49" class="LineNr"> 49 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> cursor-in-sandbox?/<span class="Constant">ebx</span>: boolean <span class="Special">&lt;-</span> copy <span class="Constant">0</span>/false
+<span id="L51" class="LineNr"> 51 </span>  <span class="Delimiter">{</span>
+<span id="L52" class="LineNr"> 52 </span>    <span class="PreProc">var</span> cursor-in-trace?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L53" class="LineNr"> 53 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L54" class="LineNr"> 54 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L55" class="LineNr"> 55 </span>    cursor-in-sandbox? <span class="Special">&lt;-</span> copy <span class="Constant">1</span>/true
+<span id="L56" class="LineNr"> 56 </span>  <span class="Delimiter">}</span>
+<span id="L57" class="LineNr"> 57 </span>  x, y <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L83'>render-gap-buffer-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, data, x, y, xmax, ymax, cursor-in-sandbox?
+<span id="L58" class="LineNr"> 58 </span>  y <span class="Special">&lt;-</span> increment
+<span id="L59" class="LineNr"> 59 </span>  <span class="muComment"># trace</span>
+<span id="L60" class="LineNr"> 60 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L61" class="LineNr"> 61 </span>  <span class="PreProc">var</span> _trace/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L62" class="LineNr"> 62 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> cursor-in-trace?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L64" class="LineNr"> 64 </span>  y <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, trace, xmin, y, xmax, ymax, *cursor-in-trace?
+<span id="L65" class="LineNr"> 65 </span>  <span class="muComment"># value</span>
+<span id="L66" class="LineNr"> 66 </span>  $render-sandbox:value: <span class="Delimiter">{</span>
+<span id="L67" class="LineNr"> 67 </span>    <span class="PreProc">var</span> value-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get self, value
+<span id="L68" class="LineNr"> 68 </span>    <span class="PreProc">var</span> _value/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *value-ah
+<span id="L69" class="LineNr"> 69 </span>    <span class="PreProc">var</span> value/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _value
+<span id="L70" class="LineNr"> 70 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> value
+<span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> value
+<span id="L72" class="LineNr"> 72 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L73" class="LineNr"> 73 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L74" class="LineNr"> 74 </span>    <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L75" class="LineNr"> 75 </span>    x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L167'>draw-text-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;=&gt; &quot;</span>, xmin, y, xmax, ymax, xmin, y, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">var</span> x2/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy x
+<span id="L77" class="LineNr"> 77 </span>    <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L111'>draw-stream-rightward</a> <a href='../500text-screen.mu.html#L9'>screen</a>, value, x2, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0</span>/bg
+<span id="L78" class="LineNr"> 78 </span>  <span class="Delimiter">}</span>
+<span id="L79" class="LineNr"> 79 </span>  <span class="muComment"># render menu</span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="PreProc">var</span> cursor-in-trace?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L81" class="LineNr"> 81 </span>  compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L82" class="LineNr"> 82 </span>  <span class="Delimiter">{</span>
+<span id="L83" class="LineNr"> 83 </span>    <span class="PreProc">break-if-=</span>
+<span id="L84" class="LineNr"> 84 </span>    <a href='trace.mu.html#L662'>render-trace-menu</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L85" class="LineNr"> 85 </span>    <span class="PreProc">return</span>
+<span id="L86" class="LineNr"> 86 </span>  <span class="Delimiter">}</span>
+<span id="L87" class="LineNr"> 87 </span>  <a href='sandbox.mu.html#L90'>render-sandbox-menu</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<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='sandbox.mu.html#L90'>render-sandbox-menu</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L91" class="LineNr"> 91 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L93" class="LineNr"> 93 </span>  width, height <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L50'>screen-size</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy height
+<span id="L95" class="LineNr"> 95 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L96" class="LineNr"> 96 </span>  <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L97" class="LineNr"> 97 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; ctrl-s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L98" class="LineNr"> 98 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; <a href='sandbox.mu.html#L170'>run</a> <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L99" class="LineNr"> 99 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; tab &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">9</span>/bg=blue
+<span id="L100" class="LineNr">100 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; move to trace  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L101" class="LineNr">101 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; ctrl-d &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L102" class="LineNr">102 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; down  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L103" class="LineNr">103 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; ctrl-u &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L104" class="LineNr">104 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; up  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L105" class="LineNr">105 </span><span class="Delimiter">}</span>
+<span id="L106" class="LineNr">106 </span>
+<span id="L107" class="LineNr">107 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L107'>edit-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), key: byte <span class="Delimiter">{</span>
+<span id="L108" class="LineNr">108 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="Special">&lt;-</span> copy key
+<span id="L110" class="LineNr">110 </span>  <span class="muComment"># running code</span>
+<span id="L111" class="LineNr">111 </span>  <span class="Delimiter">{</span>
+<span id="L112" class="LineNr">112 </span>    compare g, <span class="Constant">0x12</span>/ctrl-r
+<span id="L113" class="LineNr">113 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L114" class="LineNr">114 </span>    <span class="muComment"># ctrl-r: run function outside sandbox</span>
+<span id="L115" class="LineNr">115 </span>    <span class="muComment"># required: fn (addr screen), (addr keyboard)</span>
+<span id="L116" class="LineNr">116 </span>    <span class="muComment"># Mu will pass in the real screen and keyboard.</span>
+<span id="L117" class="LineNr">117 </span>    <span class="PreProc">return</span>
+<span id="L118" class="LineNr">118 </span>  <span class="Delimiter">}</span>
+<span id="L119" class="LineNr">119 </span>  <span class="Delimiter">{</span>
+<span id="L120" class="LineNr">120 </span>    compare g, <span class="Constant">0x13</span>/ctrl-s
+<span id="L121" class="LineNr">121 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L122" class="LineNr">122 </span>    <span class="muComment"># ctrl-s: run sandbox(es)</span>
+<span id="L123" class="LineNr">123 </span>    <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L124" class="LineNr">124 </span>    <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L125" class="LineNr">125 </span>    <span class="PreProc">var</span> data/<span class="Constant">ecx</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _data
+<span id="L126" class="LineNr">126 </span>    <span class="PreProc">var</span> value-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get self, value
+<span id="L127" class="LineNr">127 </span>    <span class="PreProc">var</span> _value/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *value-ah
+<span id="L128" class="LineNr">128 </span>    <span class="PreProc">var</span> value/<span class="Constant">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _value
+<span id="L129" class="LineNr">129 </span>    <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L130" class="LineNr">130 </span>    <span class="PreProc">var</span> trace/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L131" class="LineNr">131 </span>    <a href='trace.mu.html#L45'>clear-trace</a> trace
+<span id="L132" class="LineNr">132 </span>    <a href='sandbox.mu.html#L170'>run</a> data, value, trace
+<span id="L133" class="LineNr">133 </span>    <span class="muComment"># testing write to disk</span>
+<span id="L134" class="LineNr">134 </span><span class="CommentedCode">#?     rewind-stream value</span>
+<span id="L135" class="LineNr">135 </span><span class="CommentedCode">#?     store-first-sector-to-primary-bus-secondary-drive value</span>
+<span id="L136" class="LineNr">136 </span>    <span class="PreProc">return</span>
+<span id="L137" class="LineNr">137 </span>  <span class="Delimiter">}</span>
+<span id="L138" class="LineNr">138 </span>  <span class="muComment"># tab</span>
+<span id="L139" class="LineNr">139 </span>  <span class="PreProc">var</span> cursor-in-trace?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L140" class="LineNr">140 </span>  <span class="Delimiter">{</span>
+<span id="L141" class="LineNr">141 </span>    compare g, <span class="Constant">9</span>/tab
+<span id="L142" class="LineNr">142 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L143" class="LineNr">143 </span>    <span class="muComment"># if cursor in input, switch to trace</span>
+<span id="L144" class="LineNr">144 </span>    <span class="Delimiter">{</span>
+<span id="L145" class="LineNr">145 </span>      compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L146" class="LineNr">146 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L147" class="LineNr">147 </span>      copy-to *cursor-in-trace?, <span class="Constant">1</span>/true
+<span id="L148" class="LineNr">148 </span>      <span class="PreProc">return</span>
+<span id="L149" class="LineNr">149 </span>    <span class="Delimiter">}</span>
+<span id="L150" class="LineNr">150 </span>    <span class="muComment"># if cursor in trace, switch to input</span>
+<span id="L151" class="LineNr">151 </span>    copy-to *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L152" class="LineNr">152 </span>    <span class="PreProc">return</span>
+<span id="L153" class="LineNr">153 </span>  <span class="Delimiter">}</span>
+<span id="L154" class="LineNr">154 </span>  <span class="muComment"># if cursor in trace, send cursor to trace</span>
+<span id="L155" class="LineNr">155 </span>  <span class="Delimiter">{</span>
+<span id="L156" class="LineNr">156 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L157" class="LineNr">157 </span>    <span class="PreProc">break-if-=</span>
+<span id="L158" class="LineNr">158 </span>    <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L159" class="LineNr">159 </span>    <span class="PreProc">var</span> trace/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L160" class="LineNr">160 </span>    <a href='trace.mu.html#L683'>edit-trace</a> trace, g
+<span id="L161" class="LineNr">161 </span>    <span class="PreProc">return</span>
+<span id="L162" class="LineNr">162 </span>  <span class="Delimiter">}</span>
+<span id="L163" class="LineNr">163 </span>  <span class="muComment"># otherwise send cursor to input</span>
+<span id="L164" class="LineNr">164 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L165" class="LineNr">165 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L166" class="LineNr">166 </span>  <a href='gap-buffer.mu.html#L754'>edit-gap-buffer</a> data, g
+<span id="L167" class="LineNr">167 </span>  <span class="PreProc">return</span>
+<span id="L168" class="LineNr">168 </span><span class="Delimiter">}</span>
+<span id="L169" class="LineNr">169 </span>
+<span id="L170" class="LineNr">170 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L170'>run</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L171" class="LineNr">171 </span>  <span class="PreProc">var</span> read-result-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L172" class="LineNr">172 </span>  <span class="PreProc">var</span> read-result/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address read-result-storage
+<span id="L173" class="LineNr">173 </span>  <a href='read.mu.html#L1'>read-cell</a> in, read-result, trace
+<span id="L174" class="LineNr">174 </span>  <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L54'>has-errors?</a> trace
+<span id="L175" class="LineNr">175 </span>  <span class="Delimiter">{</span>
+<span id="L176" class="LineNr">176 </span>    compare error?, <span class="Constant">0</span>/false
+<span id="L177" class="LineNr">177 </span>    <span class="PreProc">break-if-=</span>
+<span id="L178" class="LineNr">178 </span>    <span class="PreProc">return</span>
+<span id="L179" class="LineNr">179 </span>  <span class="Delimiter">}</span>
+<span id="L180" class="LineNr">180 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L181" class="LineNr">181 </span>  <span class="PreProc">var</span> nil-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address nil-storage
+<span id="L182" class="LineNr">182 </span>  <a href='cell.mu.html#L73'>allocate-pair</a> nil-ah
+<span id="L183" class="LineNr">183 </span>  <span class="PreProc">var</span> eval-result-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> eval-result/<span class="Constant">edi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address eval-result-storage
+<span id="L185" class="LineNr">185 </span>  <a href='eval.mu.html#L3'>evaluate</a> read-result, eval-result, *nil-ah, trace
+<span id="L186" class="LineNr">186 </span>  <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L54'>has-errors?</a> trace
+<span id="L187" class="LineNr">187 </span>  <span class="Delimiter">{</span>
+<span id="L188" class="LineNr">188 </span>    compare error?, <span class="Constant">0</span>/false
+<span id="L189" class="LineNr">189 </span>    <span class="PreProc">break-if-=</span>
+<span id="L190" class="LineNr">190 </span>    <span class="PreProc">return</span>
+<span id="L191" class="LineNr">191 </span>  <span class="Delimiter">}</span>
+<span id="L192" class="LineNr">192 </span>  <a href='../106stream.subx.html#L20'>clear-stream</a> out
+<span id="L193" class="LineNr">193 </span>  <a href='print.mu.html#L1'>print-cell</a> eval-result, out, trace
+<span id="L194" class="LineNr">194 </span>  <a href='trace.mu.html#L295'>mark-lines-dirty</a> trace
+<span id="L195" class="LineNr">195 </span><span class="Delimiter">}</span>
+<span id="L196" class="LineNr">196 </span>
+<span id="L197" class="LineNr">197 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L197'>test-run-integer</a></span> <span class="Delimiter">{</span>
+<span id="L198" class="LineNr">198 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L199" class="LineNr">199 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L200" class="LineNr">200 </span>  <a href='sandbox.mu.html#L8'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L201" class="LineNr">201 </span>  <span class="muComment"># type &quot;1&quot;</span>
+<span id="L202" class="LineNr">202 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>
+<span id="L203" class="LineNr">203 </span>  <span class="muComment"># eval</span>
+<span id="L204" class="LineNr">204 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s
+<span id="L205" class="LineNr">205 </span>  <span class="muComment"># setup: screen</span>
+<span id="L206" class="LineNr">206 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L208" class="LineNr">208 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L209" class="LineNr">209 </span>  <span class="muComment">#</span>
+<span id="L210" class="LineNr">210 </span>  <a href='sandbox.mu.html#L41'>render-sandbox</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L211" class="LineNr">211 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;1    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L197'>test-run-integer</a>/0&quot;</span>
+<span id="L212" class="LineNr">212 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L197'>test-run-integer</a>/1&quot;</span>
+<span id="L213" class="LineNr">213 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;=&gt; 1 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L197'>test-run-integer</a>/2&quot;</span>
+<span id="L214" class="LineNr">214 </span><span class="Delimiter">}</span>
+<span id="L215" class="LineNr">215 </span>
+<span id="L216" class="LineNr">216 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L216'>test-run-with-spaces</a></span> <span class="Delimiter">{</span>
+<span id="L217" class="LineNr">217 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L218" class="LineNr">218 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L219" class="LineNr">219 </span>  <a href='sandbox.mu.html#L8'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L220" class="LineNr">220 </span>  <span class="muComment"># type input with whitespace before and after</span>
+<span id="L221" class="LineNr">221 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x20</span>/space
+<span id="L222" class="LineNr">222 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>
+<span id="L223" class="LineNr">223 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x20</span>/space
+<span id="L224" class="LineNr">224 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xa</span>/newline
+<span id="L225" class="LineNr">225 </span>  <span class="muComment"># eval</span>
+<span id="L226" class="LineNr">226 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s
+<span id="L227" class="LineNr">227 </span>  <span class="muComment"># setup: screen</span>
+<span id="L228" class="LineNr">228 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L229" class="LineNr">229 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L230" class="LineNr">230 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L231" class="LineNr">231 </span>  <span class="muComment">#</span>
+<span id="L232" class="LineNr">232 </span>  <a href='sandbox.mu.html#L41'>render-sandbox</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L233" class="LineNr">233 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot; 1   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L216'>test-run-with-spaces</a>/0&quot;</span>
+<span id="L234" class="LineNr">234 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L216'>test-run-with-spaces</a>/1&quot;</span>
+<span id="L235" class="LineNr">235 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L216'>test-run-with-spaces</a>/2&quot;</span>
+<span id="L236" class="LineNr">236 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot;=&gt; 1 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L216'>test-run-with-spaces</a>/3&quot;</span>
+<span id="L237" class="LineNr">237 </span><span class="Delimiter">}</span>
+<span id="L238" class="LineNr">238 </span>
+<span id="L239" class="LineNr">239 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L239'>test-run-error-invalid-integer</a></span> <span class="Delimiter">{</span>
+<span id="L240" class="LineNr">240 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L241" class="LineNr">241 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L242" class="LineNr">242 </span>  <a href='sandbox.mu.html#L8'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L243" class="LineNr">243 </span>  <span class="muComment"># type &quot;1a&quot;</span>
+<span id="L244" class="LineNr">244 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>
+<span id="L245" class="LineNr">245 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x61</span>/a
+<span id="L246" class="LineNr">246 </span>  <span class="muComment"># eval</span>
+<span id="L247" class="LineNr">247 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s
+<span id="L248" class="LineNr">248 </span>  <span class="muComment"># setup: screen</span>
+<span id="L249" class="LineNr">249 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L250" class="LineNr">250 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L251" class="LineNr">251 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L252" class="LineNr">252 </span>  <span class="muComment">#</span>
+<span id="L253" class="LineNr">253 </span>  <a href='sandbox.mu.html#L41'>render-sandbox</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L254" class="LineNr">254 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;1a             &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L239'>test-run-error-invalid-integer</a>/0&quot;</span>
+<span id="L255" class="LineNr">255 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;...            &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L239'>test-run-error-invalid-integer</a>/0&quot;</span>
+<span id="L256" class="LineNr">256 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;invalid number &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L239'>test-run-error-invalid-integer</a>/2&quot;</span>
+<span id="L257" class="LineNr">257 </span><span class="Delimiter">}</span>
+<span id="L258" class="LineNr">258 </span>
+<span id="L259" class="LineNr">259 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a></span> <span class="Delimiter">{</span>
+<span id="L260" class="LineNr">260 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L261" class="LineNr">261 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="Constant">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L262" class="LineNr">262 </span>  <a href='sandbox.mu.html#L8'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L263" class="LineNr">263 </span>  <span class="muComment"># type &quot;12&quot;</span>
+<span id="L264" class="LineNr">264 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>
+<span id="L265" class="LineNr">265 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x32</span>/<span class="Constant">2</span>
+<span id="L266" class="LineNr">266 </span>  <span class="muComment"># eval</span>
+<span id="L267" class="LineNr">267 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s
+<span id="L268" class="LineNr">268 </span>  <span class="muComment"># setup: screen</span>
+<span id="L269" class="LineNr">269 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L270" class="LineNr">270 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L271" class="LineNr">271 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L272" class="LineNr">272 </span>  <span class="muComment">#</span>
+<span id="L273" class="LineNr">273 </span>  <a href='sandbox.mu.html#L41'>render-sandbox</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L274" class="LineNr">274 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/pre-0&quot;</span>
+<span id="L275" class="LineNr">275 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;  |   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/pre-0/cursor&quot;</span>
+<span id="L276" class="LineNr">276 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/pre-1&quot;</span>
+<span id="L277" class="LineNr">277 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/pre-1/cursor&quot;</span>
+<span id="L278" class="LineNr">278 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;=&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/pre-2&quot;</span>
+<span id="L279" class="LineNr">279 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/pre-2/cursor&quot;</span>
+<span id="L280" class="LineNr">280 </span>  <span class="muComment"># move cursor into trace</span>
+<span id="L281" class="LineNr">281 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">9</span>/tab
+<span id="L282" class="LineNr">282 </span>  <span class="muComment">#</span>
+<span id="L283" class="LineNr">283 </span>  <a href='sandbox.mu.html#L41'>render-sandbox</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L284" class="LineNr">284 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/trace-0&quot;</span>
+<span id="L285" class="LineNr">285 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/trace-0/cursor&quot;</span>
+<span id="L286" class="LineNr">286 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/trace-1&quot;</span>
+<span id="L287" class="LineNr">287 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/trace-1/cursor&quot;</span>
+<span id="L288" class="LineNr">288 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;=&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/trace-2&quot;</span>
+<span id="L289" class="LineNr">289 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/trace-2/cursor&quot;</span>
+<span id="L290" class="LineNr">290 </span>  <span class="muComment"># move cursor into input</span>
+<span id="L291" class="LineNr">291 </span>  <a href='sandbox.mu.html#L107'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">9</span>/tab
+<span id="L292" class="LineNr">292 </span>  <span class="muComment">#</span>
+<span id="L293" class="LineNr">293 </span>  <a href='sandbox.mu.html#L41'>render-sandbox</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height
+<span id="L294" class="LineNr">294 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/input-0&quot;</span>
+<span id="L295" class="LineNr">295 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;  |   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/input-0/cursor&quot;</span>
+<span id="L296" class="LineNr">296 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/input-1&quot;</span>
+<span id="L297" class="LineNr">297 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/input-1/cursor&quot;</span>
+<span id="L298" class="LineNr">298 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;=&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/input-2&quot;</span>
+<span id="L299" class="LineNr">299 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L259'>test-run-move-cursor-into-trace</a>/input-2/cursor&quot;</span>
+<span id="L300" class="LineNr">300 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/tokenize.mu.html b/html/shell/tokenize.mu.html
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+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - shell/tokenize.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
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+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
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+  /* Always jump to new location even if the line was hidden inside a fold, or
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+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/tokenize.mu'>https://github.com/akkartik/mu/blob/main/shell/tokenize.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># We reuse the cell data structure for tokenization</span>
+<span id="L2" class="LineNr">  2 </span><span class="muComment"># Token cells are special, though. They have no type, they're always atoms,</span>
+<span id="L3" class="LineNr">  3 </span><span class="muComment"># they always have text-data.</span>
+<span id="L4" class="LineNr">  4 </span>
+<span id="L5" class="LineNr">  5 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L5'>tokenize</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L6" class="LineNr">  6 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;tokenize&quot;</span>
+<span id="L7" class="LineNr">  7 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L8" class="LineNr">  8 </span>  <a href='gap-buffer.mu.html#L582'>rewind-gap-buffer</a> in
+<span id="L9" class="LineNr">  9 </span>  <span class="PreProc">var</span> token-storage: <a href='cell.mu.html#L1'>cell</a>
+<span id="L10" class="LineNr"> 10 </span>  <span class="PreProc">var</span> token/<span class="Constant">edx</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address token-storage
+<span id="L11" class="LineNr"> 11 </span>  <span class="Delimiter">{</span>
+<span id="L12" class="LineNr"> 12 </span>    <a href='gap-buffer.mu.html#L738'>skip-whitespace-from-gap-buffer</a> in
+<span id="L13" class="LineNr"> 13 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> in
+<span id="L14" class="LineNr"> 14 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L15" class="LineNr"> 15 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L16" class="LineNr"> 16 </span>    <span class="muComment"># initialize token data each iteration to avoid aliasing</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="PreProc">var</span> dest-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get token, text-data
+<span id="L18" class="LineNr"> 18 </span>    populate-stream dest-ah, <span class="Constant">0x40</span>/max-token-size
+<span id="L19" class="LineNr"> 19 </span>    <span class="muComment">#</span>
+<span id="L20" class="LineNr"> 20 </span>    <a href='tokenize.mu.html#L33'>next-token</a> in, token, trace
+<span id="L21" class="LineNr"> 21 </span>    <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L54'>has-errors?</a> trace
+<span id="L22" class="LineNr"> 22 </span>    compare error?, <span class="Constant">0</span>/false
+<span id="L23" class="LineNr"> 23 </span>    <span class="Delimiter">{</span>
+<span id="L24" class="LineNr"> 24 </span>      <span class="PreProc">break-if-=</span>
+<span id="L25" class="LineNr"> 25 </span>      <span class="PreProc">return</span>
+<span id="L26" class="LineNr"> 26 </span>    <span class="Delimiter">}</span>
+<span id="L27" class="LineNr"> 27 </span>    <a href='../309stream.subx.html#L54'>write-to-stream</a> out, token  <span class="muComment"># shallow-copy text-data</span>
+<span id="L28" class="LineNr"> 28 </span>    <span class="PreProc">loop</span>
+<span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
+<span id="L30" class="LineNr"> 30 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span>
+<span id="L32" class="LineNr"> 32 </span>
+<span id="L33" class="LineNr"> 33 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L33'>next-token</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), _out-cell: (addr <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L34" class="LineNr"> 34 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;next-token&quot;</span>
+<span id="L35" class="LineNr"> 35 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">var</span> out-cell/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _out-cell
+<span id="L37" class="LineNr"> 37 </span>  <span class="PreProc">var</span> out-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get out-cell, text-data
+<span id="L38" class="LineNr"> 38 </span>  <span class="PreProc">var</span> _out/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L39" class="LineNr"> 39 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _out
+<span id="L40" class="LineNr"> 40 </span>  $next-token:body: <span class="Delimiter">{</span>
+<span id="L41" class="LineNr"> 41 </span>    <a href='../106stream.subx.html#L20'>clear-stream</a> out
+<span id="L42" class="LineNr"> 42 </span>    <a href='gap-buffer.mu.html#L738'>skip-whitespace-from-gap-buffer</a> in
+<span id="L43" class="LineNr"> 43 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L614'>peek-from-gap-buffer</a> in
+<span id="L44" class="LineNr"> 44 </span>    <span class="Delimiter">{</span>
+<span id="L45" class="LineNr"> 45 </span>      <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L46" class="LineNr"> 46 </span>      <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L47" class="LineNr"> 47 </span>      <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;next: &quot;</span>
+<span id="L48" class="LineNr"> 48 </span>      <span class="PreProc">var</span> gval/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L49" class="LineNr"> 49 </span>      <a href='../117write-int-hex.subx.html#L92'>write-int32-hex</a> stream, gval
+<span id="L50" class="LineNr"> 50 </span>      trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L51" class="LineNr"> 51 </span>    <span class="Delimiter">}</span>
+<span id="L52" class="LineNr"> 52 </span>    <span class="muComment"># digit</span>
+<span id="L53" class="LineNr"> 53 </span>    <span class="Delimiter">{</span>
+<span id="L54" class="LineNr"> 54 </span>      <span class="PreProc">var</span> digit?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../126write-int-decimal.subx.html#L299'>decimal-digit?</a> g
+<span id="L55" class="LineNr"> 55 </span>      compare digit?, <span class="Constant">0</span>/false
+<span id="L56" class="LineNr"> 56 </span>      <span class="PreProc">break-if-=</span>
+<span id="L57" class="LineNr"> 57 </span>      <a href='tokenize.mu.html#L169'>next-number-token</a> in, out, trace
+<span id="L58" class="LineNr"> 58 </span>      <span class="PreProc">break</span> $next-token:body
+<span id="L59" class="LineNr"> 59 </span>    <span class="Delimiter">}</span>
+<span id="L60" class="LineNr"> 60 </span>    <span class="muComment"># other symbol char</span>
+<span id="L61" class="LineNr"> 61 </span>    <span class="Delimiter">{</span>
+<span id="L62" class="LineNr"> 62 </span>      <span class="PreProc">var</span> symbol?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L220'>symbol-grapheme?</a> g
+<span id="L63" class="LineNr"> 63 </span>      compare symbol?, <span class="Constant">0</span>/false
+<span id="L64" class="LineNr"> 64 </span>      <span class="PreProc">break-if-=</span>
+<span id="L65" class="LineNr"> 65 </span>      <a href='tokenize.mu.html#L95'>next-symbol-token</a> in, out, trace
+<span id="L66" class="LineNr"> 66 </span>      <span class="PreProc">break</span> $next-token:body
+<span id="L67" class="LineNr"> 67 </span>    <span class="Delimiter">}</span>
+<span id="L68" class="LineNr"> 68 </span>    <span class="muComment"># brackets are always single-char tokens</span>
+<span id="L69" class="LineNr"> 69 </span>    <span class="Delimiter">{</span>
+<span id="L70" class="LineNr"> 70 </span>      <span class="PreProc">var</span> bracket?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L387'>bracket-grapheme?</a> g
+<span id="L71" class="LineNr"> 71 </span>      compare bracket?, <span class="Constant">0</span>/false
+<span id="L72" class="LineNr"> 72 </span>      <span class="PreProc">break-if-=</span>
+<span id="L73" class="LineNr"> 73 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> in
+<span id="L74" class="LineNr"> 74 </span>      <a href='tokenize.mu.html#L209'>next-bracket-token</a> g, out, trace
+<span id="L75" class="LineNr"> 75 </span>      <span class="PreProc">break</span> $next-token:body
+<span id="L76" class="LineNr"> 76 </span>    <span class="Delimiter">}</span>
+<span id="L77" class="LineNr"> 77 </span>    <span class="muComment"># non-symbol operators</span>
+<span id="L78" class="LineNr"> 78 </span>    <span class="Delimiter">{</span>
+<span id="L79" class="LineNr"> 79 </span>      <span class="PreProc">var</span> operator?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L421'>operator-grapheme?</a> g
+<span id="L80" class="LineNr"> 80 </span>      compare operator?, <span class="Constant">0</span>/false
+<span id="L81" class="LineNr"> 81 </span>      <span class="PreProc">break-if-=</span>
+<span id="L82" class="LineNr"> 82 </span>      <a href='tokenize.mu.html#L132'>next-operator-token</a> in, out, trace
+<span id="L83" class="LineNr"> 83 </span>      <span class="PreProc">break</span> $next-token:body
+<span id="L84" class="LineNr"> 84 </span>    <span class="Delimiter">}</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">}</span>
+<span id="L86" class="LineNr"> 86 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L87" class="LineNr"> 87 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L88" class="LineNr"> 88 </span>  <span class="PreProc">var</span> stream/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L89" class="LineNr"> 89 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; &quot;</span>
+<span id="L90" class="LineNr"> 90 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> out
+<span id="L91" class="LineNr"> 91 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, out
+<span id="L92" class="LineNr"> 92 </span>  trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">}</span>
+<span id="L94" class="LineNr"> 94 </span>
+<span id="L95" class="LineNr"> 95 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L95'>next-symbol-token</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L96" class="LineNr"> 96 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;looking for a symbol&quot;</span>
+<span id="L97" class="LineNr"> 97 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L98" class="LineNr"> 98 </span>  $next-symbol-token:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L99" class="LineNr"> 99 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> in
+<span id="L100" class="LineNr">100 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L101" class="LineNr">101 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L102" class="LineNr">102 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L614'>peek-from-gap-buffer</a> in
+<span id="L103" class="LineNr">103 </span>    <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>      <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L105" class="LineNr">105 </span>      <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L106" class="LineNr">106 </span>      <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;next: &quot;</span>
+<span id="L107" class="LineNr">107 </span>      <span class="PreProc">var</span> gval/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L108" class="LineNr">108 </span>      <a href='../117write-int-hex.subx.html#L92'>write-int32-hex</a> stream, gval
+<span id="L109" class="LineNr">109 </span>      trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L110" class="LineNr">110 </span>    <span class="Delimiter">}</span>
+<span id="L111" class="LineNr">111 </span>    <span class="muComment"># if non-symbol, return</span>
+<span id="L112" class="LineNr">112 </span>    <span class="Delimiter">{</span>
+<span id="L113" class="LineNr">113 </span>      <span class="PreProc">var</span> <a href='tokenize.mu.html#L220'>symbol-grapheme?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L220'>symbol-grapheme?</a> g
+<span id="L114" class="LineNr">114 </span>      compare <a href='tokenize.mu.html#L220'>symbol-grapheme?</a>, <span class="Constant">0</span>/false
+<span id="L115" class="LineNr">115 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L116" class="LineNr">116 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;stop&quot;</span>
+<span id="L117" class="LineNr">117 </span>      <span class="PreProc">break</span> $next-symbol-token:<span class="PreProc">loop</span>
+<span id="L118" class="LineNr">118 </span>    <span class="Delimiter">}</span>
+<span id="L119" class="LineNr">119 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> in
+<span id="L120" class="LineNr">120 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out, g
+<span id="L121" class="LineNr">121 </span>    <span class="PreProc">loop</span>
+<span id="L122" class="LineNr">122 </span>  <span class="Delimiter">}</span>
+<span id="L123" class="LineNr">123 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L124" class="LineNr">124 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L126" class="LineNr">126 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; &quot;</span>
+<span id="L127" class="LineNr">127 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> out
+<span id="L128" class="LineNr">128 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, out
+<span id="L129" class="LineNr">129 </span>  trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L130" class="LineNr">130 </span><span class="Delimiter">}</span>
+<span id="L131" class="LineNr">131 </span>
+<span id="L132" class="LineNr">132 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L132'>next-operator-token</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L133" class="LineNr">133 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;looking for a operator&quot;</span>
+<span id="L134" class="LineNr">134 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L135" class="LineNr">135 </span>  $next-operator-token:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L136" class="LineNr">136 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> in
+<span id="L137" class="LineNr">137 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L138" class="LineNr">138 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L139" class="LineNr">139 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L614'>peek-from-gap-buffer</a> in
+<span id="L140" class="LineNr">140 </span>    <span class="Delimiter">{</span>
+<span id="L141" class="LineNr">141 </span>      <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L142" class="LineNr">142 </span>      <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L143" class="LineNr">143 </span>      <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;next: &quot;</span>
+<span id="L144" class="LineNr">144 </span>      <span class="PreProc">var</span> gval/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L145" class="LineNr">145 </span>      <a href='../117write-int-hex.subx.html#L92'>write-int32-hex</a> stream, gval
+<span id="L146" class="LineNr">146 </span>      trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L147" class="LineNr">147 </span>    <span class="Delimiter">}</span>
+<span id="L148" class="LineNr">148 </span>    <span class="muComment"># if non-operator, return</span>
+<span id="L149" class="LineNr">149 </span>    <span class="Delimiter">{</span>
+<span id="L150" class="LineNr">150 </span>      <span class="PreProc">var</span> <a href='tokenize.mu.html#L421'>operator-grapheme?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L421'>operator-grapheme?</a> g
+<span id="L151" class="LineNr">151 </span>      compare <a href='tokenize.mu.html#L421'>operator-grapheme?</a>, <span class="Constant">0</span>/false
+<span id="L152" class="LineNr">152 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L153" class="LineNr">153 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;stop&quot;</span>
+<span id="L154" class="LineNr">154 </span>      <span class="PreProc">break</span> $next-operator-token:<span class="PreProc">loop</span>
+<span id="L155" class="LineNr">155 </span>    <span class="Delimiter">}</span>
+<span id="L156" class="LineNr">156 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> in
+<span id="L157" class="LineNr">157 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out, g
+<span id="L158" class="LineNr">158 </span>    <span class="PreProc">loop</span>
+<span id="L159" class="LineNr">159 </span>  <span class="Delimiter">}</span>
+<span id="L160" class="LineNr">160 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L162" class="LineNr">162 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L163" class="LineNr">163 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; &quot;</span>
+<span id="L164" class="LineNr">164 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> out
+<span id="L165" class="LineNr">165 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, out
+<span id="L166" class="LineNr">166 </span>  trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<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='tokenize.mu.html#L169'>next-number-token</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L170" class="LineNr">170 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;looking for a number&quot;</span>
+<span id="L171" class="LineNr">171 </span>  <a href='trace.mu.html#L128'>trace-lower</a> trace
+<span id="L172" class="LineNr">172 </span>  $next-number-token:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L173" class="LineNr">173 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L590'>gap-buffer-scan-done?</a> in
+<span id="L174" class="LineNr">174 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L175" class="LineNr">175 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L176" class="LineNr">176 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L614'>peek-from-gap-buffer</a> in
+<span id="L177" class="LineNr">177 </span>    <span class="Delimiter">{</span>
+<span id="L178" class="LineNr">178 </span>      <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L179" class="LineNr">179 </span>      <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L180" class="LineNr">180 </span>      <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;next: &quot;</span>
+<span id="L181" class="LineNr">181 </span>      <span class="PreProc">var</span> gval/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy g
+<span id="L182" class="LineNr">182 </span>      <a href='../117write-int-hex.subx.html#L92'>write-int32-hex</a> stream, gval
+<span id="L183" class="LineNr">183 </span>      trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L184" class="LineNr">184 </span>    <span class="Delimiter">}</span>
+<span id="L185" class="LineNr">185 </span>    <span class="muComment"># if not symbol grapheme, return</span>
+<span id="L186" class="LineNr">186 </span>    <span class="Delimiter">{</span>
+<span id="L187" class="LineNr">187 </span>      <span class="PreProc">var</span> <a href='tokenize.mu.html#L220'>symbol-grapheme?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L220'>symbol-grapheme?</a> g
+<span id="L188" class="LineNr">188 </span>      compare <a href='tokenize.mu.html#L220'>symbol-grapheme?</a>, <span class="Constant">0</span>/false
+<span id="L189" class="LineNr">189 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L190" class="LineNr">190 </span>      <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;stop&quot;</span>
+<span id="L191" class="LineNr">191 </span>      <span class="PreProc">break</span> $next-number-token:<span class="PreProc">loop</span>
+<span id="L192" class="LineNr">192 </span>    <span class="Delimiter">}</span>
+<span id="L193" class="LineNr">193 </span>    <span class="muComment"># if not digit grapheme, abort</span>
+<span id="L194" class="LineNr">194 </span>    <span class="Delimiter">{</span>
+<span id="L195" class="LineNr">195 </span>      <span class="PreProc">var</span> digit?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../126write-int-decimal.subx.html#L299'>decimal-digit?</a> g
+<span id="L196" class="LineNr">196 </span>      compare digit?, <span class="Constant">0</span>/false
+<span id="L197" class="LineNr">197 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L198" class="LineNr">198 </span>      <span class="Special"><a href='trace.mu.html#L110'>error</a></span> trace, <span class="Constant">&quot;invalid number&quot;</span>
+<span id="L199" class="LineNr">199 </span>      <span class="PreProc">return</span>
+<span id="L200" class="LineNr">200 </span>    <span class="Delimiter">}</span>
+<span id="L201" class="LineNr">201 </span>    <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;append&quot;</span>
+<span id="L202" class="LineNr">202 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L650'>read-from-gap-buffer</a> in
+<span id="L203" class="LineNr">203 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out, g
+<span id="L204" class="LineNr">204 </span>    <span class="PreProc">loop</span>
+<span id="L205" class="LineNr">205 </span>  <span class="Delimiter">}</span>
+<span id="L206" class="LineNr">206 </span>  <a href='trace.mu.html#L136'>trace-higher</a> trace
+<span id="L207" class="LineNr">207 </span><span class="Delimiter">}</span>
+<span id="L208" class="LineNr">208 </span>
+<span id="L209" class="LineNr">209 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L209'>next-bracket-token</a></span> g: grapheme, out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
+<span id="L210" class="LineNr">210 </span>  <a href='trace.mu.html#L101'>trace-text</a> trace, <span class="Constant">&quot;read&quot;</span>, <span class="Constant">&quot;bracket&quot;</span>
+<span id="L211" class="LineNr">211 </span>  <a href='../403unicode.mu.html#L176'>write-grapheme</a> out, g
+<span id="L212" class="LineNr">212 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x40</span>)
+<span id="L213" class="LineNr">213 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
+<span id="L214" class="LineNr">214 </span>  <a href='../108write.subx.html#L11'>write</a> stream, <span class="Constant">&quot;=&gt; &quot;</span>
+<span id="L215" class="LineNr">215 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> out
+<span id="L216" class="LineNr">216 </span>  <a href='../113write-stream.subx.html#L8'>write-stream</a> stream, out
+<span id="L217" class="LineNr">217 </span>  trace trace, <span class="Constant">&quot;read&quot;</span>, stream
+<span id="L218" class="LineNr">218 </span><span class="Delimiter">}</span>
+<span id="L219" class="LineNr">219 </span>
+<span id="L220" class="LineNr">220 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L220'>symbol-grapheme?</a></span> g: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L221" class="LineNr">221 </span>  <span class="muComment">## whitespace</span>
+<span id="L222" class="LineNr">222 </span>  compare g, <span class="Constant">9</span>/tab
+<span id="L223" class="LineNr">223 </span>  <span class="Delimiter">{</span>
+<span id="L224" class="LineNr">224 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L225" class="LineNr">225 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L226" class="LineNr">226 </span>  <span class="Delimiter">}</span>
+<span id="L227" class="LineNr">227 </span>  compare g, <span class="Constant">0xa</span>/newline
+<span id="L228" class="LineNr">228 </span>  <span class="Delimiter">{</span>
+<span id="L229" class="LineNr">229 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L230" class="LineNr">230 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L231" class="LineNr">231 </span>  <span class="Delimiter">}</span>
+<span id="L232" class="LineNr">232 </span>  compare g, <span class="Constant">0x20</span>/space
+<span id="L233" class="LineNr">233 </span>  <span class="Delimiter">{</span>
+<span id="L234" class="LineNr">234 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L235" class="LineNr">235 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L236" class="LineNr">236 </span>  <span class="Delimiter">}</span>
+<span id="L237" class="LineNr">237 </span>  <span class="muComment">## quotes</span>
+<span id="L238" class="LineNr">238 </span>  compare g, <span class="Constant">0x22</span>/double-quote
+<span id="L239" class="LineNr">239 </span>  <span class="Delimiter">{</span>
+<span id="L240" class="LineNr">240 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L241" class="LineNr">241 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L242" class="LineNr">242 </span>  <span class="Delimiter">}</span>
+<span id="L243" class="LineNr">243 </span>  compare g, <span class="Constant">0x60</span>/backquote
+<span id="L244" class="LineNr">244 </span>  <span class="Delimiter">{</span>
+<span id="L245" class="LineNr">245 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L246" class="LineNr">246 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L247" class="LineNr">247 </span>  <span class="Delimiter">}</span>
+<span id="L248" class="LineNr">248 </span>  <span class="muComment">## brackets</span>
+<span id="L249" class="LineNr">249 </span>  compare g, <span class="Constant">0x28</span>/open-paren
+<span id="L250" class="LineNr">250 </span>  <span class="Delimiter">{</span>
+<span id="L251" class="LineNr">251 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L252" class="LineNr">252 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L253" class="LineNr">253 </span>  <span class="Delimiter">}</span>
+<span id="L254" class="LineNr">254 </span>  compare g, <span class="Constant">0x29</span>/close-paren
+<span id="L255" class="LineNr">255 </span>  <span class="Delimiter">{</span>
+<span id="L256" class="LineNr">256 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L257" class="LineNr">257 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L258" class="LineNr">258 </span>  <span class="Delimiter">}</span>
+<span id="L259" class="LineNr">259 </span>  compare g, <span class="Constant">0x5b</span>/open-square-bracket
+<span id="L260" class="LineNr">260 </span>  <span class="Delimiter">{</span>
+<span id="L261" class="LineNr">261 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L262" class="LineNr">262 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L263" class="LineNr">263 </span>  <span class="Delimiter">}</span>
+<span id="L264" class="LineNr">264 </span>  compare g, <span class="Constant">0x5d</span>/close-square-bracket
+<span id="L265" class="LineNr">265 </span>  <span class="Delimiter">{</span>
+<span id="L266" class="LineNr">266 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L267" class="LineNr">267 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L268" class="LineNr">268 </span>  <span class="Delimiter">}</span>
+<span id="L269" class="LineNr">269 </span>  compare g, <span class="Constant">0x7b</span>/open-curly-bracket
+<span id="L270" class="LineNr">270 </span>  <span class="Delimiter">{</span>
+<span id="L271" class="LineNr">271 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L272" class="LineNr">272 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L273" class="LineNr">273 </span>  <span class="Delimiter">}</span>
+<span id="L274" class="LineNr">274 </span>  compare g, <span class="Constant">0x7d</span>/close-curly-bracket
+<span id="L275" class="LineNr">275 </span>  <span class="Delimiter">{</span>
+<span id="L276" class="LineNr">276 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L277" class="LineNr">277 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L278" class="LineNr">278 </span>  <span class="Delimiter">}</span>
+<span id="L279" class="LineNr">279 </span>  <span class="muComment"># - other punctuation</span>
+<span id="L280" class="LineNr">280 </span>  <span class="muComment"># '!' is a symbol char</span>
+<span id="L281" class="LineNr">281 </span>  compare g, <span class="Constant">0x23</span>/hash
+<span id="L282" class="LineNr">282 </span>  <span class="Delimiter">{</span>
+<span id="L283" class="LineNr">283 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L284" class="LineNr">284 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L285" class="LineNr">285 </span>  <span class="Delimiter">}</span>
+<span id="L286" class="LineNr">286 </span>  <span class="muComment"># '$' is a symbol char</span>
+<span id="L287" class="LineNr">287 </span>  compare g, <span class="Constant">0x25</span>/percent
+<span id="L288" class="LineNr">288 </span>  <span class="Delimiter">{</span>
+<span id="L289" class="LineNr">289 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L290" class="LineNr">290 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L291" class="LineNr">291 </span>  <span class="Delimiter">}</span>
+<span id="L292" class="LineNr">292 </span>  compare g, <span class="Constant">0x26</span>/ampersand
+<span id="L293" class="LineNr">293 </span>  <span class="Delimiter">{</span>
+<span id="L294" class="LineNr">294 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L295" class="LineNr">295 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L296" class="LineNr">296 </span>  <span class="Delimiter">}</span>
+<span id="L297" class="LineNr">297 </span>  compare g, <span class="Constant">0x27</span>/single-quote
+<span id="L298" class="LineNr">298 </span>  <span class="Delimiter">{</span>
+<span id="L299" class="LineNr">299 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L300" class="LineNr">300 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L301" class="LineNr">301 </span>  <span class="Delimiter">}</span>
+<span id="L302" class="LineNr">302 </span>  compare g, <span class="Constant">0x2a</span>/asterisk
+<span id="L303" class="LineNr">303 </span>  <span class="Delimiter">{</span>
+<span id="L304" class="LineNr">304 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L305" class="LineNr">305 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L306" class="LineNr">306 </span>  <span class="Delimiter">}</span>
+<span id="L307" class="LineNr">307 </span>  compare g, <span class="Constant">0x2b</span>/plus
+<span id="L308" class="LineNr">308 </span>  <span class="Delimiter">{</span>
+<span id="L309" class="LineNr">309 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L310" class="LineNr">310 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L311" class="LineNr">311 </span>  <span class="Delimiter">}</span>
+<span id="L312" class="LineNr">312 </span>  compare g, <span class="Constant">0x2c</span>/comma
+<span id="L313" class="LineNr">313 </span>  <span class="Delimiter">{</span>
+<span id="L314" class="LineNr">314 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L315" class="LineNr">315 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L316" class="LineNr">316 </span>  <span class="Delimiter">}</span>
+<span id="L317" class="LineNr">317 </span>  compare g, <span class="Constant">0x2d</span>/dash  <span class="muComment"># '-' not allowed in symbols</span>
+<span id="L318" class="LineNr">318 </span>  <span class="Delimiter">{</span>
+<span id="L319" class="LineNr">319 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L320" class="LineNr">320 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L321" class="LineNr">321 </span>  <span class="Delimiter">}</span>
+<span id="L322" class="LineNr">322 </span>  compare g, <span class="Constant">0x2e</span>/period
+<span id="L323" class="LineNr">323 </span>  <span class="Delimiter">{</span>
+<span id="L324" class="LineNr">324 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L325" class="LineNr">325 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L326" class="LineNr">326 </span>  <span class="Delimiter">}</span>
+<span id="L327" class="LineNr">327 </span>  compare g, <span class="Constant">0x2f</span>/slash
+<span id="L328" class="LineNr">328 </span>  <span class="Delimiter">{</span>
+<span id="L329" class="LineNr">329 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L330" class="LineNr">330 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L331" class="LineNr">331 </span>  <span class="Delimiter">}</span>
+<span id="L332" class="LineNr">332 </span>  compare g, <span class="Constant">0x3a</span>/colon
+<span id="L333" class="LineNr">333 </span>  <span class="Delimiter">{</span>
+<span id="L334" class="LineNr">334 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L335" class="LineNr">335 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L336" class="LineNr">336 </span>  <span class="Delimiter">}</span>
+<span id="L337" class="LineNr">337 </span>  compare g, <span class="Constant">0x3b</span>/semi-colon
+<span id="L338" class="LineNr">338 </span>  <span class="Delimiter">{</span>
+<span id="L339" class="LineNr">339 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L340" class="LineNr">340 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L341" class="LineNr">341 </span>  <span class="Delimiter">}</span>
+<span id="L342" class="LineNr">342 </span>  compare g, <span class="Constant">0x3c</span>/less-than
+<span id="L343" class="LineNr">343 </span>  <span class="Delimiter">{</span>
+<span id="L344" class="LineNr">344 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L345" class="LineNr">345 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L346" class="LineNr">346 </span>  <span class="Delimiter">}</span>
+<span id="L347" class="LineNr">347 </span>  compare g, <span class="Constant">0x3d</span>/equal
+<span id="L348" class="LineNr">348 </span>  <span class="Delimiter">{</span>
+<span id="L349" class="LineNr">349 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L350" class="LineNr">350 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L351" class="LineNr">351 </span>  <span class="Delimiter">}</span>
+<span id="L352" class="LineNr">352 </span>  compare g, <span class="Constant">0x3e</span>/greater-than
+<span id="L353" class="LineNr">353 </span>  <span class="Delimiter">{</span>
+<span id="L354" class="LineNr">354 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L355" class="LineNr">355 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L356" class="LineNr">356 </span>  <span class="Delimiter">}</span>
+<span id="L357" class="LineNr">357 </span>  <span class="muComment"># '?' is a symbol char</span>
+<span id="L358" class="LineNr">358 </span>  compare g, <span class="Constant">0x40</span>/at-sign
+<span id="L359" class="LineNr">359 </span>  <span class="Delimiter">{</span>
+<span id="L360" class="LineNr">360 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L361" class="LineNr">361 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L362" class="LineNr">362 </span>  <span class="Delimiter">}</span>
+<span id="L363" class="LineNr">363 </span>  compare g, <span class="Constant">0x5c</span>/backslash
+<span id="L364" class="LineNr">364 </span>  <span class="Delimiter">{</span>
+<span id="L365" class="LineNr">365 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L366" class="LineNr">366 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L367" class="LineNr">367 </span>  <span class="Delimiter">}</span>
+<span id="L368" class="LineNr">368 </span>  compare g, <span class="Constant">0x5e</span>/caret
+<span id="L369" class="LineNr">369 </span>  <span class="Delimiter">{</span>
+<span id="L370" class="LineNr">370 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L371" class="LineNr">371 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L372" class="LineNr">372 </span>  <span class="Delimiter">}</span>
+<span id="L373" class="LineNr">373 </span>  <span class="muComment"># '_' is a symbol char</span>
+<span id="L374" class="LineNr">374 </span>  compare g, <span class="Constant">0x7c</span>/vertical-line
+<span id="L375" class="LineNr">375 </span>  <span class="Delimiter">{</span>
+<span id="L376" class="LineNr">376 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L377" class="LineNr">377 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L378" class="LineNr">378 </span>  <span class="Delimiter">}</span>
+<span id="L379" class="LineNr">379 </span>  compare g, <span class="Constant">0x7e</span>/tilde
+<span id="L380" class="LineNr">380 </span>  <span class="Delimiter">{</span>
+<span id="L381" class="LineNr">381 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L382" class="LineNr">382 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L383" class="LineNr">383 </span>  <span class="Delimiter">}</span>
+<span id="L384" class="LineNr">384 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L385" class="LineNr">385 </span><span class="Delimiter">}</span>
+<span id="L386" class="LineNr">386 </span>
+<span id="L387" class="LineNr">387 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L387'>bracket-grapheme?</a></span> g: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L388" class="LineNr">388 </span>  compare g, <span class="Constant">0x28</span>/open-paren
+<span id="L389" class="LineNr">389 </span>  <span class="Delimiter">{</span>
+<span id="L390" class="LineNr">390 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L391" class="LineNr">391 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L392" class="LineNr">392 </span>  <span class="Delimiter">}</span>
+<span id="L393" class="LineNr">393 </span>  compare g, <span class="Constant">0x29</span>/close-paren
+<span id="L394" class="LineNr">394 </span>  <span class="Delimiter">{</span>
+<span id="L395" class="LineNr">395 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L396" class="LineNr">396 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L397" class="LineNr">397 </span>  <span class="Delimiter">}</span>
+<span id="L398" class="LineNr">398 </span>  compare g, <span class="Constant">0x5b</span>/open-square-bracket
+<span id="L399" class="LineNr">399 </span>  <span class="Delimiter">{</span>
+<span id="L400" class="LineNr">400 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L401" class="LineNr">401 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L402" class="LineNr">402 </span>  <span class="Delimiter">}</span>
+<span id="L403" class="LineNr">403 </span>  compare g, <span class="Constant">0x5d</span>/close-square-bracket
+<span id="L404" class="LineNr">404 </span>  <span class="Delimiter">{</span>
+<span id="L405" class="LineNr">405 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L406" class="LineNr">406 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L407" class="LineNr">407 </span>  <span class="Delimiter">}</span>
+<span id="L408" class="LineNr">408 </span>  compare g, <span class="Constant">0x7b</span>/open-curly-bracket
+<span id="L409" class="LineNr">409 </span>  <span class="Delimiter">{</span>
+<span id="L410" class="LineNr">410 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L411" class="LineNr">411 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L412" class="LineNr">412 </span>  <span class="Delimiter">}</span>
+<span id="L413" class="LineNr">413 </span>  compare g, <span class="Constant">0x7d</span>/close-curly-bracket
+<span id="L414" class="LineNr">414 </span>  <span class="Delimiter">{</span>
+<span id="L415" class="LineNr">415 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L416" class="LineNr">416 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L417" class="LineNr">417 </span>  <span class="Delimiter">}</span>
+<span id="L418" class="LineNr">418 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L419" class="LineNr">419 </span><span class="Delimiter">}</span>
+<span id="L420" class="LineNr">420 </span>
+<span id="L421" class="LineNr">421 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L421'>operator-grapheme?</a></span> g: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L422" class="LineNr">422 </span>  <span class="muComment"># '$' is a symbol char</span>
+<span id="L423" class="LineNr">423 </span>  compare g, <span class="Constant">0x25</span>/percent
+<span id="L424" class="LineNr">424 </span>  <span class="Delimiter">{</span>
+<span id="L425" class="LineNr">425 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L426" class="LineNr">426 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/false
+<span id="L427" class="LineNr">427 </span>  <span class="Delimiter">}</span>
+<span id="L428" class="LineNr">428 </span>  compare g, <span class="Constant">0x26</span>/ampersand
+<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>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L432" class="LineNr">432 </span>  <span class="Delimiter">}</span>
+<span id="L433" class="LineNr">433 </span>  compare g, <span class="Constant">0x27</span>/single-quote
+<span id="L434" class="LineNr">434 </span>  <span class="Delimiter">{</span>
+<span id="L435" class="LineNr">435 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L436" class="LineNr">436 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L437" class="LineNr">437 </span>  <span class="Delimiter">}</span>
+<span id="L438" class="LineNr">438 </span>  compare g, <span class="Constant">0x2a</span>/asterisk
+<span id="L439" class="LineNr">439 </span>  <span class="Delimiter">{</span>
+<span id="L440" class="LineNr">440 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L441" class="LineNr">441 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L442" class="LineNr">442 </span>  <span class="Delimiter">}</span>
+<span id="L443" class="LineNr">443 </span>  compare g, <span class="Constant">0x2b</span>/plus
+<span id="L444" class="LineNr">444 </span>  <span class="Delimiter">{</span>
+<span id="L445" class="LineNr">445 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L446" class="LineNr">446 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L447" class="LineNr">447 </span>  <span class="Delimiter">}</span>
+<span id="L448" class="LineNr">448 </span>  compare g, <span class="Constant">0x2c</span>/comma
+<span id="L449" class="LineNr">449 </span>  <span class="Delimiter">{</span>
+<span id="L450" class="LineNr">450 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L451" class="LineNr">451 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L452" class="LineNr">452 </span>  <span class="Delimiter">}</span>
+<span id="L453" class="LineNr">453 </span>  compare g, <span class="Constant">0x2d</span>/dash  <span class="muComment"># '-' not allowed in symbols</span>
+<span id="L454" class="LineNr">454 </span>  <span class="Delimiter">{</span>
+<span id="L455" class="LineNr">455 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L456" class="LineNr">456 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L457" class="LineNr">457 </span>  <span class="Delimiter">}</span>
+<span id="L458" class="LineNr">458 </span>  compare g, <span class="Constant">0x2e</span>/period
+<span id="L459" class="LineNr">459 </span>  <span class="Delimiter">{</span>
+<span id="L460" class="LineNr">460 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L461" class="LineNr">461 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L462" class="LineNr">462 </span>  <span class="Delimiter">}</span>
+<span id="L463" class="LineNr">463 </span>  compare g, <span class="Constant">0x2f</span>/slash
+<span id="L464" class="LineNr">464 </span>  <span class="Delimiter">{</span>
+<span id="L465" class="LineNr">465 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L466" class="LineNr">466 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L467" class="LineNr">467 </span>  <span class="Delimiter">}</span>
+<span id="L468" class="LineNr">468 </span>  compare g, <span class="Constant">0x3a</span>/colon
+<span id="L469" class="LineNr">469 </span>  <span class="Delimiter">{</span>
+<span id="L470" class="LineNr">470 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L471" class="LineNr">471 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L472" class="LineNr">472 </span>  <span class="Delimiter">}</span>
+<span id="L473" class="LineNr">473 </span>  compare g, <span class="Constant">0x3b</span>/semi-colon
+<span id="L474" class="LineNr">474 </span>  <span class="Delimiter">{</span>
+<span id="L475" class="LineNr">475 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L476" class="LineNr">476 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L477" class="LineNr">477 </span>  <span class="Delimiter">}</span>
+<span id="L478" class="LineNr">478 </span>  compare g, <span class="Constant">0x3c</span>/less-than
+<span id="L479" class="LineNr">479 </span>  <span class="Delimiter">{</span>
+<span id="L480" class="LineNr">480 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L481" class="LineNr">481 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L482" class="LineNr">482 </span>  <span class="Delimiter">}</span>
+<span id="L483" class="LineNr">483 </span>  compare g, <span class="Constant">0x3d</span>/equal
+<span id="L484" class="LineNr">484 </span>  <span class="Delimiter">{</span>
+<span id="L485" class="LineNr">485 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L486" class="LineNr">486 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L487" class="LineNr">487 </span>  <span class="Delimiter">}</span>
+<span id="L488" class="LineNr">488 </span>  compare g, <span class="Constant">0x3e</span>/greater-than
+<span id="L489" class="LineNr">489 </span>  <span class="Delimiter">{</span>
+<span id="L490" class="LineNr">490 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L491" class="LineNr">491 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L492" class="LineNr">492 </span>  <span class="Delimiter">}</span>
+<span id="L493" class="LineNr">493 </span>  <span class="muComment"># '?' is a symbol char</span>
+<span id="L494" class="LineNr">494 </span>  compare g, <span class="Constant">0x40</span>/at-sign
+<span id="L495" class="LineNr">495 </span>  <span class="Delimiter">{</span>
+<span id="L496" class="LineNr">496 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L497" class="LineNr">497 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L498" class="LineNr">498 </span>  <span class="Delimiter">}</span>
+<span id="L499" class="LineNr">499 </span>  compare g, <span class="Constant">0x5c</span>/backslash
+<span id="L500" class="LineNr">500 </span>  <span class="Delimiter">{</span>
+<span id="L501" class="LineNr">501 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L502" class="LineNr">502 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L503" class="LineNr">503 </span>  <span class="Delimiter">}</span>
+<span id="L504" class="LineNr">504 </span>  compare g, <span class="Constant">0x5e</span>/caret
+<span id="L505" class="LineNr">505 </span>  <span class="Delimiter">{</span>
+<span id="L506" class="LineNr">506 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L507" class="LineNr">507 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L508" class="LineNr">508 </span>  <span class="Delimiter">}</span>
+<span id="L509" class="LineNr">509 </span>  <span class="muComment"># '_' is a symbol char</span>
+<span id="L510" class="LineNr">510 </span>  compare g, <span class="Constant">0x7c</span>/vertical-line
+<span id="L511" class="LineNr">511 </span>  <span class="Delimiter">{</span>
+<span id="L512" class="LineNr">512 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L513" class="LineNr">513 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L514" class="LineNr">514 </span>  <span class="Delimiter">}</span>
+<span id="L515" class="LineNr">515 </span>  compare g, <span class="Constant">0x7e</span>/tilde
+<span id="L516" class="LineNr">516 </span>  <span class="Delimiter">{</span>
+<span id="L517" class="LineNr">517 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L518" class="LineNr">518 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L519" class="LineNr">519 </span>  <span class="Delimiter">}</span>
+<span id="L520" class="LineNr">520 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L521" class="LineNr">521 </span><span class="Delimiter">}</span>
+<span id="L522" class="LineNr">522 </span>
+<span id="L523" class="LineNr">523 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L523'>number-token?</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
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+<span id="L525" class="LineNr">525 </span>  <span class="PreProc">var</span> in-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get in, text-data
+<span id="L526" class="LineNr">526 </span>  <span class="PreProc">var</span> in-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *in-data-ah
+<span id="L527" class="LineNr">527 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
+<span id="L528" class="LineNr">528 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L529" class="LineNr">529 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../126write-int-decimal.subx.html#L299'>decimal-digit?</a> g
+<span id="L530" class="LineNr">530 </span>  <span class="PreProc">return</span> result
+<span id="L531" class="LineNr">531 </span><span class="Delimiter">}</span>
+<span id="L532" class="LineNr">532 </span>
+<span id="L533" class="LineNr">533 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L533'>bracket-token?</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L534" class="LineNr">534 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L535" class="LineNr">535 </span>  <span class="PreProc">var</span> in-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get in, text-data
+<span id="L536" class="LineNr">536 </span>  <span class="PreProc">var</span> in-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *in-data-ah
+<span id="L537" class="LineNr">537 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
+<span id="L538" class="LineNr">538 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L539" class="LineNr">539 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L387'>bracket-grapheme?</a> g
+<span id="L540" class="LineNr">540 </span>  <span class="PreProc">return</span> result
+<span id="L541" class="LineNr">541 </span><span class="Delimiter">}</span>
+<span id="L542" class="LineNr">542 </span>
+<span id="L543" class="LineNr">543 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L543'>open-paren-token?</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
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+<span id="L546" class="LineNr">546 </span>  <span class="PreProc">var</span> in-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *in-data-ah
+<span id="L547" class="LineNr">547 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
+<span id="L548" class="LineNr">548 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L549" class="LineNr">549 </span>  compare g, <span class="Constant">0x28</span>/open-paren
+<span id="L550" class="LineNr">550 </span>  <span class="Delimiter">{</span>
+<span id="L551" class="LineNr">551 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L552" class="LineNr">552 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L553" class="LineNr">553 </span>  <span class="Delimiter">}</span>
+<span id="L554" class="LineNr">554 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L555" class="LineNr">555 </span><span class="Delimiter">}</span>
+<span id="L556" class="LineNr">556 </span>
+<span id="L557" class="LineNr">557 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L557'>close-paren-token?</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L558" class="LineNr">558 </span>  <span class="PreProc">var</span> in/<span class="Constant">eax</span>: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _in
+<span id="L559" class="LineNr">559 </span>  <span class="PreProc">var</span> in-data-ah/<span class="Constant">eax</span>: (addr handle stream byte) <span class="Special">&lt;-</span> get in, text-data
+<span id="L560" class="LineNr">560 </span>  <span class="PreProc">var</span> in-data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *in-data-ah
+<span id="L561" class="LineNr">561 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
+<span id="L562" class="LineNr">562 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L563" class="LineNr">563 </span>  compare g, <span class="Constant">0x29</span>/open-paren
+<span id="L564" class="LineNr">564 </span>  <span class="Delimiter">{</span>
+<span id="L565" class="LineNr">565 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L566" class="LineNr">566 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L567" class="LineNr">567 </span>  <span class="Delimiter">}</span>
+<span id="L568" class="LineNr">568 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L569" class="LineNr">569 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/shell/trace.mu.html b/html/shell/trace.mu.html
new file mode 100644
index 00000000..78e1a1b4
--- /dev/null
+++ b/html/shell/trace.mu.html
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+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - shell/trace.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">
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+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.Special { color: #ff6060; }
+.LineNr { }
+.Constant { color: #008787; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
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+  /* Always jump to new location even if the line was hidden inside a fold, or
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+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/shell/trace.mu'>https://github.com/akkartik/mu/blob/main/shell/trace.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">   1 </span><span class="muComment"># A trace records the evolution of a computation.</span>
+<span id="L2" class="LineNr">   2 </span><span class="muComment"># An integral part of the Mu Shell is facilities for browsing traces.</span>
+<span id="L3" class="LineNr">   3 </span>
+<span id="L4" class="LineNr">   4 </span><span class="PreProc">type</span> trace <span class="Delimiter">{</span>
+<span id="L5" class="LineNr">   5 </span>  curr-depth: int  <span class="muComment"># depth that will be assigned to next line appended</span>
+<span id="L6" class="LineNr">   6 </span>  data: (handle array <a href='trace.mu.html#L26'>trace-line</a>)
+<span id="L7" class="LineNr">   7 </span>  first-free: int
+<span id="L8" class="LineNr">   8 </span>  first-full: int  <span class="muComment"># used only by check-trace-scan</span>
+<span id="L9" class="LineNr">   9 </span>
+<span id="L10" class="LineNr">  10 </span>  <span class="muComment"># steady-state life cycle of a trace:</span>
+<span id="L11" class="LineNr">  11 </span>  <span class="muComment">#   reload loop:</span>
+<span id="L12" class="LineNr">  12 </span>  <span class="muComment">#     there are already some visible lines</span>
+<span id="L13" class="LineNr">  13 </span>  <span class="muComment">#     append a bunch of new trace lines to the trace</span>
+<span id="L14" class="LineNr">  14 </span>  <span class="muComment">#     render loop:</span>
+<span id="L15" class="LineNr">  15 </span>  <span class="muComment">#       rendering displays trace lines that match visible lines</span>
+<span id="L16" class="LineNr">  16 </span>  <span class="muComment">#       rendering computes cursor-line based on the cursor-y coordinate</span>
+<span id="L17" class="LineNr">  17 </span>  <span class="muComment">#       edit-trace updates cursor-y coordinate</span>
+<span id="L18" class="LineNr">  18 </span>  <span class="muComment">#       edit-trace might add/remove lines to visible</span>
+<span id="L19" class="LineNr">  19 </span>  visible: (handle array <a href='trace.mu.html#L26'>trace-line</a>)
+<span id="L20" class="LineNr">  20 </span>  recompute-visible?: boolean
+<span id="L21" class="LineNr">  21 </span>  top-line-index: int  <span class="muComment"># index into data</span>
+<span id="L22" class="LineNr">  22 </span>  cursor-y: int  <span class="muComment"># row index on screen</span>
+<span id="L23" class="LineNr">  23 </span>  cursor-line-index: int  <span class="muComment"># index into data</span>
+<span id="L24" class="LineNr">  24 </span><span class="Delimiter">}</span>
+<span id="L25" class="LineNr">  25 </span>
+<span id="L26" class="LineNr">  26 </span><span class="PreProc">type</span> <a href='trace.mu.html#L26'>trace-line</a> <span class="Delimiter">{</span>
+<span id="L27" class="LineNr">  27 </span>  depth: int
+<span id="L28" class="LineNr">  28 </span>  label: (handle array byte)
+<span id="L29" class="LineNr">  29 </span>  data: (handle array byte)
+<span id="L30" class="LineNr">  30 </span>  visible?: boolean
+<span id="L31" class="LineNr">  31 </span><span class="Delimiter">}</span>
+<span id="L32" class="LineNr">  32 </span>
+<span id="L33" class="LineNr">  33 </span><span class="muComment">## generating traces</span>
+<span id="L34" class="LineNr">  34 </span>
+<span id="L35" class="LineNr">  35 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L35'>initialize-trace</a></span> _self: (addr trace), capacity: int, visible-capacity: int <span class="Delimiter">{</span>
+<span id="L36" class="LineNr">  36 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L37" class="LineNr">  37 </span>  compare self, <span class="Constant">0</span>
+<span id="L38" class="LineNr">  38 </span>  <span class="PreProc">break-if-=</span>
+<span id="L39" class="LineNr">  39 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L40" class="LineNr">  40 </span>  populate trace-ah, capacity
+<span id="L41" class="LineNr">  41 </span>  <span class="PreProc">var</span> visible-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, visible
+<span id="L42" class="LineNr">  42 </span>  populate visible-ah, visible-capacity
+<span id="L43" class="LineNr">  43 </span><span class="Delimiter">}</span>
+<span id="L44" class="LineNr">  44 </span>
+<span id="L45" class="LineNr">  45 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L45'>clear-trace</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L46" class="LineNr">  46 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L47" class="LineNr">  47 </span>  compare self, <span class="Constant">0</span>
+<span id="L48" class="LineNr">  48 </span>  <span class="PreProc">break-if-=</span>
+<span id="L49" class="LineNr">  49 </span>  <span class="PreProc">var</span> len/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L50" class="LineNr">  50 </span>  copy-to *len, <span class="Constant">0</span>
+<span id="L51" class="LineNr">  51 </span>  <span class="muComment"># might leak memory; existing elements won't be used anymore</span>
+<span id="L52" class="LineNr">  52 </span><span class="Delimiter">}</span>
+<span id="L53" class="LineNr">  53 </span>
+<span id="L54" class="LineNr">  54 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L54'>has-errors?</a></span> _self: (addr trace)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L55" class="LineNr">  55 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L56" class="LineNr">  56 </span>  <span class="Delimiter">{</span>
+<span id="L57" class="LineNr">  57 </span>    compare self, <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>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L60" class="LineNr">  60 </span>  <span class="Delimiter">}</span>
+<span id="L61" class="LineNr">  61 </span>  <span class="PreProc">var</span> max/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L62" class="LineNr">  62 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L63" class="LineNr">  63 </span>  <span class="PreProc">var</span> _trace/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L64" class="LineNr">  64 </span>  <span class="PreProc">var</span> trace/<span class="Constant">esi</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _trace
+<span id="L65" class="LineNr">  65 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L66" class="LineNr">  66 </span>  <span class="Delimiter">{</span>
+<span id="L67" class="LineNr">  67 </span>    compare i, *max
+<span id="L68" class="LineNr">  68 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L69" class="LineNr">  69 </span>    <span class="PreProc">var</span> offset/<span class="Constant">eax</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, i
+<span id="L70" class="LineNr">  70 </span>    <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, offset
+<span id="L71" class="LineNr">  71 </span>    <span class="PreProc">var</span> curr-label-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get curr, label
+<span id="L72" class="LineNr">  72 </span>    <span class="PreProc">var</span> curr-label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-label-ah
+<span id="L73" class="LineNr">  73 </span>    <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> curr-label, <span class="Constant">&quot;error&quot;</span>
+<span id="L74" class="LineNr">  74 </span>    compare error?, <span class="Constant">0</span>/false
+<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>      <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L78" class="LineNr">  78 </span>    <span class="Delimiter">}</span>
+<span id="L79" class="LineNr">  79 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L80" class="LineNr">  80 </span>    <span class="PreProc">loop</span>
+<span id="L81" class="LineNr">  81 </span>  <span class="Delimiter">}</span>
+<span id="L82" class="LineNr">  82 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L83" class="LineNr">  83 </span><span class="Delimiter">}</span>
+<span id="L84" class="LineNr">  84 </span>
+<span id="L85" class="LineNr">  85 </span><span class="PreProc">fn</span> <span class="muFunction">trace</span> _self: (addr trace), label: (addr array byte), message: (addr stream byte) <span class="Delimiter">{</span>
+<span id="L86" class="LineNr">  86 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L87" class="LineNr">  87 </span>  compare self, <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>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L90" class="LineNr">  90 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L91" class="LineNr">  91 </span>  <span class="PreProc">var</span> index-addr/<span class="Constant">edi</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L92" class="LineNr">  92 </span>  <span class="PreProc">var</span> index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *index-addr
+<span id="L93" class="LineNr">  93 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset data, index
+<span id="L94" class="LineNr">  94 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index data, offset
+<span id="L95" class="LineNr">  95 </span>  <span class="PreProc">var</span> depth/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, curr-depth
+<span id="L96" class="LineNr">  96 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> message
+<span id="L97" class="LineNr">  97 </span>  <a href='trace.mu.html#L114'>initialize-trace-line</a> *depth, label, message, dest
+<span id="L98" class="LineNr">  98 </span>  increment *index-addr
+<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='trace.mu.html#L101'>trace-text</a></span> self: (addr trace), label: (addr array byte), s: (addr array byte) <span class="Delimiter">{</span>
+<span id="L102" class="LineNr"> 102 </span>  compare self, <span class="Constant">0</span>
+<span id="L103" class="LineNr"> 103 </span>  <span class="PreProc">break-if-=</span>
+<span id="L104" class="LineNr"> 104 </span>  <span class="PreProc">var</span> data-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L105" class="LineNr"> 105 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr stream byte) <span class="Special">&lt;-</span> address data-storage
+<span id="L106" class="LineNr"> 106 </span>  <a href='../108write.subx.html#L11'>write</a> data, s
+<span id="L107" class="LineNr"> 107 </span>  trace self, label, data
+<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="Special"><a href='trace.mu.html#L110'>error</a></span> self: (addr trace), message: (addr array byte) <span class="Delimiter">{</span>
+<span id="L111" class="LineNr"> 111 </span>  <a href='trace.mu.html#L101'>trace-text</a> self, <span class="Constant">&quot;error&quot;</span>, message
+<span id="L112" class="LineNr"> 112 </span><span class="Delimiter">}</span>
+<span id="L113" class="LineNr"> 113 </span>
+<span id="L114" class="LineNr"> 114 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L114'>initialize-trace-line</a></span> depth: int, label: (addr array byte), data: (addr stream byte), _out: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Delimiter">{</span>
+<span id="L115" class="LineNr"> 115 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _out
+<span id="L116" class="LineNr"> 116 </span>  <span class="muComment"># depth</span>
+<span id="L117" class="LineNr"> 117 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy depth
+<span id="L118" class="LineNr"> 118 </span>  <span class="PreProc">var</span> dest/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get out, depth
+<span id="L119" class="LineNr"> 119 </span>  copy-to *dest, src
+<span id="L120" class="LineNr"> 120 </span>  <span class="muComment"># label</span>
+<span id="L121" class="LineNr"> 121 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get out, label
+<span id="L122" class="LineNr"> 122 </span>  <a href='../312copy.subx.html#L3'>copy-array-object</a> label, dest
+<span id="L123" class="LineNr"> 123 </span>  <span class="muComment"># data</span>
+<span id="L124" class="LineNr"> 124 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get out, data
+<span id="L125" class="LineNr"> 125 </span>  <a href='../310copy-bytes.subx.html#L60'>stream-to-array</a> data, dest
+<span id="L126" class="LineNr"> 126 </span><span class="Delimiter">}</span>
+<span id="L127" class="LineNr"> 127 </span>
+<span id="L128" class="LineNr"> 128 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L128'>trace-lower</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L129" class="LineNr"> 129 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L130" class="LineNr"> 130 </span>  compare self, <span class="Constant">0</span>
+<span id="L131" class="LineNr"> 131 </span>  <span class="PreProc">break-if-=</span>
+<span id="L132" class="LineNr"> 132 </span>  <span class="PreProc">var</span> depth/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, curr-depth
+<span id="L133" class="LineNr"> 133 </span>  increment *depth
+<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='trace.mu.html#L136'>trace-higher</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L137" class="LineNr"> 137 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L138" class="LineNr"> 138 </span>  compare self, <span class="Constant">0</span>
+<span id="L139" class="LineNr"> 139 </span>  <span class="PreProc">break-if-=</span>
+<span id="L140" class="LineNr"> 140 </span>  <span class="PreProc">var</span> depth/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, curr-depth
+<span id="L141" class="LineNr"> 141 </span>  decrement *depth
+<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="muComment">## checking traces</span>
+<span id="L145" class="LineNr"> 145 </span>
+<span id="L146" class="LineNr"> 146 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L146'>check-trace-scans-to</a></span> self: (addr trace), label: (addr array byte), data: (addr array byte), message: (addr array byte) <span class="Delimiter">{</span>
+<span id="L147" class="LineNr"> 147 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L151'>trace-scans-to?</a> self, label, data
+<span id="L148" class="LineNr"> 148 </span>  <a href='../502test.mu.html#L19'>check</a> tmp, message
+<span id="L149" class="LineNr"> 149 </span><span class="Delimiter">}</span>
+<span id="L150" class="LineNr"> 150 </span>
+<span id="L151" class="LineNr"> 151 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L151'>trace-scans-to?</a></span> _self: (addr trace), label: (addr array byte), data: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L152" class="LineNr"> 152 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L153" class="LineNr"> 153 </span>  <span class="PreProc">var</span> start/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, first-full
+<span id="L154" class="LineNr"> 154 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L196'>trace-contains?</a> self, label, data, *start
+<span id="L155" class="LineNr"> 155 </span>  <span class="PreProc">return</span> result
+<span id="L156" class="LineNr"> 156 </span><span class="Delimiter">}</span>
+<span id="L157" class="LineNr"> 157 </span>
+<span id="L158" class="LineNr"> 158 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L158'>test-trace-scans-to</a></span> <span class="Delimiter">{</span>
+<span id="L159" class="LineNr"> 159 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L160" class="LineNr"> 160 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L161" class="LineNr"> 161 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0</span>/visible  <span class="muComment"># we don't use trace UI</span>
+<span id="L162" class="LineNr"> 162 </span>  <span class="muComment">#</span>
+<span id="L163" class="LineNr"> 163 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L164" class="LineNr"> 164 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L165" class="LineNr"> 165 </span>  <a href='trace.mu.html#L146'>check-trace-scans-to</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L158'>test-trace-scans-to</a>/0&quot;</span>
+<span id="L166" class="LineNr"> 166 </span>  <a href='trace.mu.html#L146'>check-trace-scans-to</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L158'>test-trace-scans-to</a>/1&quot;</span>
+<span id="L167" class="LineNr"> 167 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L151'>trace-scans-to?</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L168" class="LineNr"> 168 </span>  <a href='../502test.mu.html#L32'>check-not</a> tmp, <span class="Constant">&quot;F - <a href='trace.mu.html#L158'>test-trace-scans-to</a>: fail on previously encountered lines&quot;</span>
+<span id="L169" class="LineNr"> 169 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L151'>trace-scans-to?</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L170" class="LineNr"> 170 </span>  <a href='../502test.mu.html#L32'>check-not</a> tmp, <span class="Constant">&quot;F - <a href='trace.mu.html#L158'>test-trace-scans-to</a>: fail on missing&quot;</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"># scan trace from start</span>
+<span id="L174" class="LineNr"> 174 </span><span class="muComment"># resets previous scans</span>
+<span id="L175" class="LineNr"> 175 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L175'>check-trace-contains</a></span> self: (addr trace), label: (addr array byte), data: (addr array byte), message: (addr array byte) <span class="Delimiter">{</span>
+<span id="L176" class="LineNr"> 176 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L196'>trace-contains?</a> self, label, data, <span class="Constant">0</span>
+<span id="L177" class="LineNr"> 177 </span>  <a href='../502test.mu.html#L19'>check</a> tmp, message
+<span id="L178" class="LineNr"> 178 </span><span class="Delimiter">}</span>
+<span id="L179" class="LineNr"> 179 </span>
+<span id="L180" class="LineNr"> 180 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L180'>test-trace-contains</a></span> <span class="Delimiter">{</span>
+<span id="L181" class="LineNr"> 181 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L182" class="LineNr"> 182 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L183" class="LineNr"> 183 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0</span>/visible  <span class="muComment"># we don't use trace UI</span>
+<span id="L184" class="LineNr"> 184 </span>  <span class="muComment">#</span>
+<span id="L185" class="LineNr"> 185 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L186" class="LineNr"> 186 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L187" class="LineNr"> 187 </span>  <a href='trace.mu.html#L175'>check-trace-contains</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L180'>test-trace-contains</a>/0&quot;</span>
+<span id="L188" class="LineNr"> 188 </span>  <a href='trace.mu.html#L175'>check-trace-contains</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L180'>test-trace-contains</a>/1&quot;</span>
+<span id="L189" class="LineNr"> 189 </span>  <a href='trace.mu.html#L175'>check-trace-contains</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L180'>test-trace-contains</a>: find previously encountered lines&quot;</span>
+<span id="L190" class="LineNr"> 190 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L196'>trace-contains?</a> t, <span class="Constant">&quot;label&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>, <span class="Constant">0</span>/start
+<span id="L191" class="LineNr"> 191 </span>  <a href='../502test.mu.html#L32'>check-not</a> tmp, <span class="Constant">&quot;F - <a href='trace.mu.html#L180'>test-trace-contains</a>: fail on missing&quot;</span>
+<span id="L192" class="LineNr"> 192 </span><span class="Delimiter">}</span>
+<span id="L193" class="LineNr"> 193 </span>
+<span id="L194" class="LineNr"> 194 </span><span class="muComment"># this is super-inefficient, string comparing every trace line</span>
+<span id="L195" class="LineNr"> 195 </span><span class="muComment"># against every visible line on every render</span>
+<span id="L196" class="LineNr"> 196 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L196'>trace-contains?</a></span> _self: (addr trace), label: (addr array byte), data: (addr array byte), start: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L197" class="LineNr"> 197 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L198" class="LineNr"> 198 </span>  <span class="PreProc">var</span> candidates-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L199" class="LineNr"> 199 </span>  <span class="PreProc">var</span> candidates/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *candidates-ah
+<span id="L200" class="LineNr"> 200 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy start
+<span id="L201" class="LineNr"> 201 </span>  <span class="PreProc">var</span> max/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L202" class="LineNr"> 202 </span>  <span class="Delimiter">{</span>
+<span id="L203" class="LineNr"> 203 </span>    compare i, *max
+<span id="L204" class="LineNr"> 204 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L205" class="LineNr"> 205 </span>    <span class="Delimiter">{</span>
+<span id="L206" class="LineNr"> 206 </span>      <span class="PreProc">var</span> read-until-index/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, first-full
+<span id="L207" class="LineNr"> 207 </span>      copy-to *read-until-index, i
+<span id="L208" class="LineNr"> 208 </span>    <span class="Delimiter">}</span>
+<span id="L209" class="LineNr"> 209 </span>    <span class="Delimiter">{</span>
+<span id="L210" class="LineNr"> 210 </span>      <span class="PreProc">var</span> curr-offset/<span class="Constant">ecx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset candidates, i
+<span id="L211" class="LineNr"> 211 </span>      <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index candidates, curr-offset
+<span id="L212" class="LineNr"> 212 </span>      <span class="muComment"># if curr-&gt;label does not match, return false</span>
+<span id="L213" class="LineNr"> 213 </span>      <span class="PreProc">var</span> curr-label-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get curr, label
+<span id="L214" class="LineNr"> 214 </span>      <span class="PreProc">var</span> curr-label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-label-ah
+<span id="L215" class="LineNr"> 215 </span>      <span class="PreProc">var</span> match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> curr-label, label
+<span id="L216" class="LineNr"> 216 </span>      compare match?, <span class="Constant">0</span>/false
+<span id="L217" class="LineNr"> 217 </span>      <span class="PreProc">break-if-=</span>
+<span id="L218" class="LineNr"> 218 </span>      <span class="muComment"># if curr-&gt;data does not match, return false</span>
+<span id="L219" class="LineNr"> 219 </span>      <span class="PreProc">var</span> curr-data-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get curr, data
+<span id="L220" class="LineNr"> 220 </span>      <span class="PreProc">var</span> curr-data/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-data-ah
+<span id="L221" class="LineNr"> 221 </span>      <span class="PreProc">var</span> match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> curr-data, data
+<span id="L222" class="LineNr"> 222 </span>      compare match?, <span class="Constant">0</span>/false
+<span id="L223" class="LineNr"> 223 </span>      <span class="PreProc">break-if-=</span>
+<span id="L224" class="LineNr"> 224 </span>      <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L225" class="LineNr"> 225 </span>    <span class="Delimiter">}</span>
+<span id="L226" class="LineNr"> 226 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L227" class="LineNr"> 227 </span>    <span class="PreProc">loop</span>
+<span id="L228" class="LineNr"> 228 </span>  <span class="Delimiter">}</span>
+<span id="L229" class="LineNr"> 229 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L230" class="LineNr"> 230 </span><span class="Delimiter">}</span>
+<span id="L231" class="LineNr"> 231 </span>
+<span id="L232" class="LineNr"> 232 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L232'>trace-lines-equal?</a></span> _a: (addr <a href='trace.mu.html#L26'>trace-line</a>), _b: (addr <a href='trace.mu.html#L26'>trace-line</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L233" class="LineNr"> 233 </span>  <span class="PreProc">var</span> a/<span class="Constant">esi</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _a
+<span id="L234" class="LineNr"> 234 </span>  <span class="PreProc">var</span> b/<span class="Constant">edi</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _b
+<span id="L235" class="LineNr"> 235 </span>  <span class="PreProc">var</span> a-depth/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get a, depth
+<span id="L236" class="LineNr"> 236 </span>  <span class="PreProc">var</span> b-depth/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get b, depth
+<span id="L237" class="LineNr"> 237 </span>  <span class="PreProc">var</span> benchmark/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy *b-depth
+<span id="L238" class="LineNr"> 238 </span>  compare *a-depth, benchmark
+<span id="L239" class="LineNr"> 239 </span>  <span class="Delimiter">{</span>
+<span id="L240" class="LineNr"> 240 </span>    <span class="PreProc">break-if-=</span>
+<span id="L241" class="LineNr"> 241 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L242" class="LineNr"> 242 </span>  <span class="Delimiter">}</span>
+<span id="L243" class="LineNr"> 243 </span>  <span class="PreProc">var</span> a-label-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get a, label
+<span id="L244" class="LineNr"> 244 </span>  <span class="PreProc">var</span> _a-label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *a-label-ah
+<span id="L245" class="LineNr"> 245 </span>  <span class="PreProc">var</span> a-label/<span class="Constant">ecx</span>: (addr array byte) <span class="Special">&lt;-</span> copy _a-label
+<span id="L246" class="LineNr"> 246 </span>  <span class="PreProc">var</span> b-label-ah/<span class="Constant">ebx</span>: (addr handle array byte) <span class="Special">&lt;-</span> get b, label
+<span id="L247" class="LineNr"> 247 </span>  <span class="PreProc">var</span> b-label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *b-label-ah
+<span id="L248" class="LineNr"> 248 </span>  <span class="PreProc">var</span> label-match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> a-label, b-label
+<span id="L249" class="LineNr"> 249 </span>  <span class="Delimiter">{</span>
+<span id="L250" class="LineNr"> 250 </span>    compare label-match?, <span class="Constant">0</span>/false
+<span id="L251" class="LineNr"> 251 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L252" class="LineNr"> 252 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L253" class="LineNr"> 253 </span>  <span class="Delimiter">}</span>
+<span id="L254" class="LineNr"> 254 </span>  <span class="PreProc">var</span> a-data-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get a, data
+<span id="L255" class="LineNr"> 255 </span>  <span class="PreProc">var</span> _a-data/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *a-data-ah
+<span id="L256" class="LineNr"> 256 </span>  <span class="PreProc">var</span> a-data/<span class="Constant">ecx</span>: (addr array byte) <span class="Special">&lt;-</span> copy _a-data
+<span id="L257" class="LineNr"> 257 </span>  <span class="PreProc">var</span> b-data-ah/<span class="Constant">ebx</span>: (addr handle array byte) <span class="Special">&lt;-</span> get b, data
+<span id="L258" class="LineNr"> 258 </span>  <span class="PreProc">var</span> b-data/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *b-data-ah
+<span id="L259" class="LineNr"> 259 </span>  <span class="PreProc">var</span> data-match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> a-data, b-data
+<span id="L260" class="LineNr"> 260 </span>  <span class="PreProc">return</span> data-match?
+<span id="L261" class="LineNr"> 261 </span><span class="Delimiter">}</span>
+<span id="L262" class="LineNr"> 262 </span>
+<span id="L263" class="LineNr"> 263 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L263'>dump-trace</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L264" class="LineNr"> 264 </span>  <span class="PreProc">var</span> already-hiding-lines?: boolean
+<span id="L265" class="LineNr"> 265 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L266" class="LineNr"> 266 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L267" class="LineNr"> 267 </span>  compare self, <span class="Constant">0</span>
+<span id="L268" class="LineNr"> 268 </span>  <span class="Delimiter">{</span>
+<span id="L269" class="LineNr"> 269 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L270" class="LineNr"> 270 </span>    <span class="PreProc">return</span>
+<span id="L271" class="LineNr"> 271 </span>  <span class="Delimiter">}</span>
+<span id="L272" class="LineNr"> 272 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L273" class="LineNr"> 273 </span>  <span class="PreProc">var</span> _trace/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L274" class="LineNr"> 274 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edi</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _trace
+<span id="L275" class="LineNr"> 275 </span>  <span class="PreProc">var</span> i/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L276" class="LineNr"> 276 </span>  <span class="PreProc">var</span> max-addr/<span class="Constant">ebx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L277" class="LineNr"> 277 </span>  <span class="PreProc">var</span> max/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy *max-addr
+<span id="L278" class="LineNr"> 278 </span>  $dump-trace:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L279" class="LineNr"> 279 </span>    compare i, max
+<span id="L280" class="LineNr"> 280 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L281" class="LineNr"> 281 </span>    $dump-trace:iter: <span class="Delimiter">{</span>
+<span id="L282" class="LineNr"> 282 </span>      <span class="PreProc">var</span> offset/<span class="Constant">ebx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, i
+<span id="L283" class="LineNr"> 283 </span>      <span class="PreProc">var</span> curr/<span class="Constant">ebx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, offset
+<span id="L284" class="LineNr"> 284 </span>      <span class="PreProc">var</span> curr-label-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get curr, label
+<span id="L285" class="LineNr"> 285 </span>      <span class="PreProc">var</span> curr-label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-label-ah
+<span id="L286" class="LineNr"> 286 </span>      y <span class="Special">&lt;-</span> <a href='trace.mu.html#L379'>render-trace-line</a> <span class="Constant">0</span>/screen, curr, <span class="Constant">0</span>, y, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L287" class="LineNr"> 287 </span>    <span class="Delimiter">}</span>
+<span id="L288" class="LineNr"> 288 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L289" class="LineNr"> 289 </span>    <span class="PreProc">loop</span>
+<span id="L290" class="LineNr"> 290 </span>  <span class="Delimiter">}</span>
+<span id="L291" class="LineNr"> 291 </span><span class="Delimiter">}</span>
+<span id="L292" class="LineNr"> 292 </span>
+<span id="L293" class="LineNr"> 293 </span><span class="muComment">## UI stuff</span>
+<span id="L294" class="LineNr"> 294 </span>
+<span id="L295" class="LineNr"> 295 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L295'>mark-lines-dirty</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L296" class="LineNr"> 296 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L297" class="LineNr"> 297 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, recompute-visible?
+<span id="L298" class="LineNr"> 298 </span>  copy-to *dest, <span class="Constant">1</span>/true
+<span id="L299" class="LineNr"> 299 </span><span class="Delimiter">}</span>
+<span id="L300" class="LineNr"> 300 </span>
+<span id="L301" class="LineNr"> 301 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L301'>mark-lines-clean</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L302" class="LineNr"> 302 </span>  <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L303" class="LineNr"> 303 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, recompute-visible?
+<span id="L304" class="LineNr"> 304 </span>  copy-to *dest, <span class="Constant">0</span>/false
+<span id="L305" class="LineNr"> 305 </span><span class="Delimiter">}</span>
+<span id="L306" class="LineNr"> 306 </span>
+<span id="L307" class="LineNr"> 307 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L307'>render-trace</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _self: (addr trace), xmin: int, ymin: int, xmax: int, ymax: int, show-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L308" class="LineNr"> 308 </span>  <span class="PreProc">var</span> already-hiding-lines?: boolean
+<span id="L309" class="LineNr"> 309 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L310" class="LineNr"> 310 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L311" class="LineNr"> 311 </span>  compare self, <span class="Constant">0</span>
+<span id="L312" class="LineNr"> 312 </span>  <span class="Delimiter">{</span>
+<span id="L313" class="LineNr"> 313 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L314" class="LineNr"> 314 </span>    <span class="PreProc">return</span> ymin
+<span id="L315" class="LineNr"> 315 </span>  <span class="Delimiter">}</span>
+<span id="L316" class="LineNr"> 316 </span>  <a href='trace.mu.html#L449'>clamp-cursor-to-top</a> self, y
+<span id="L317" class="LineNr"> 317 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L318" class="LineNr"> 318 </span>  <span class="PreProc">var</span> _trace/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L319" class="LineNr"> 319 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edi</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _trace
+<span id="L320" class="LineNr"> 320 </span>  <span class="PreProc">var</span> i/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L321" class="LineNr"> 321 </span>  <span class="PreProc">var</span> max-addr/<span class="Constant">ebx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L322" class="LineNr"> 322 </span>  <span class="PreProc">var</span> max/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy *max-addr
+<span id="L323" class="LineNr"> 323 </span>  $render-trace:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
+<span id="L324" class="LineNr"> 324 </span>    compare i, max
+<span id="L325" class="LineNr"> 325 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L326" class="LineNr"> 326 </span>    $render-trace:iter: <span class="Delimiter">{</span>
+<span id="L327" class="LineNr"> 327 </span>      <span class="PreProc">var</span> offset/<span class="Constant">ebx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, i
+<span id="L328" class="LineNr"> 328 </span>      <span class="PreProc">var</span> curr/<span class="Constant">ebx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, offset
+<span id="L329" class="LineNr"> 329 </span>      <span class="PreProc">var</span> curr-label-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get curr, label
+<span id="L330" class="LineNr"> 330 </span>      <span class="PreProc">var</span> curr-label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *curr-label-ah
+<span id="L331" class="LineNr"> 331 </span>      <span class="PreProc">var</span> bg/<span class="Constant">edi</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>/black
+<span id="L332" class="LineNr"> 332 </span>      compare show-cursor?, <span class="Constant">0</span>/false
+<span id="L333" class="LineNr"> 333 </span>      <span class="Delimiter">{</span>
+<span id="L334" class="LineNr"> 334 </span>        <span class="PreProc">break-if-=</span>
+<span id="L335" class="LineNr"> 335 </span>        <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-y
+<span id="L336" class="LineNr"> 336 </span>        compare *cursor-y, y
+<span id="L337" class="LineNr"> 337 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L338" class="LineNr"> 338 </span>        bg <span class="Special">&lt;-</span> copy <span class="Constant">7</span>/cursor-line-bg
+<span id="L339" class="LineNr"> 339 </span>        <span class="PreProc">var</span> cursor-line-index/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-line-index
+<span id="L340" class="LineNr"> 340 </span>        copy-to *cursor-line-index, i
+<span id="L341" class="LineNr"> 341 </span>      <span class="Delimiter">}</span>
+<span id="L342" class="LineNr"> 342 </span>      <span class="muComment"># always display errors</span>
+<span id="L343" class="LineNr"> 343 </span>      <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> curr-label, <span class="Constant">&quot;error&quot;</span>
+<span id="L344" class="LineNr"> 344 </span>      <span class="Delimiter">{</span>
+<span id="L345" class="LineNr"> 345 </span>        compare error?, <span class="Constant">0</span>/false
+<span id="L346" class="LineNr"> 346 </span>        <span class="PreProc">break-if-=</span>
+<span id="L347" class="LineNr"> 347 </span>        y <span class="Special">&lt;-</span> <a href='trace.mu.html#L379'>render-trace-line</a> <a href='../500text-screen.mu.html#L9'>screen</a>, curr, xmin, y, xmax, ymax, <span class="Constant">0xc</span>/fg=trace-error, bg
+<span id="L348" class="LineNr"> 348 </span>        copy-to already-hiding-lines?, <span class="Constant">0</span>/false
+<span id="L349" class="LineNr"> 349 </span>        <span class="PreProc">break</span> $render-trace:iter
+<span id="L350" class="LineNr"> 350 </span>      <span class="Delimiter">}</span>
+<span id="L351" class="LineNr"> 351 </span>      <span class="muComment"># display expanded lines</span>
+<span id="L352" class="LineNr"> 352 </span>      <span class="PreProc">var</span> display?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L410'>should-render?</a> self, curr
+<span id="L353" class="LineNr"> 353 </span>      <span class="Delimiter">{</span>
+<span id="L354" class="LineNr"> 354 </span>        compare display?, <span class="Constant">0</span>/false
+<span id="L355" class="LineNr"> 355 </span>        <span class="PreProc">break-if-=</span>
+<span id="L356" class="LineNr"> 356 </span>        y <span class="Special">&lt;-</span> <a href='trace.mu.html#L379'>render-trace-line</a> <a href='../500text-screen.mu.html#L9'>screen</a>, curr, xmin, y, xmax, ymax, <span class="Constant">9</span>/fg=blue, bg
+<span id="L357" class="LineNr"> 357 </span>        copy-to already-hiding-lines?, <span class="Constant">0</span>/false
+<span id="L358" class="LineNr"> 358 </span>        <span class="PreProc">break</span> $render-trace:iter
+<span id="L359" class="LineNr"> 359 </span>      <span class="Delimiter">}</span>
+<span id="L360" class="LineNr"> 360 </span>      <span class="muComment"># ignore the rest</span>
+<span id="L361" class="LineNr"> 361 </span>      compare already-hiding-lines?, <span class="Constant">0</span>/false
+<span id="L362" class="LineNr"> 362 </span>      <span class="Delimiter">{</span>
+<span id="L363" class="LineNr"> 363 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L364" class="LineNr"> 364 </span>        <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy xmin
+<span id="L365" class="LineNr"> 365 </span>        x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L167'>draw-text-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;...&quot;</span>, xmin, ymin, xmax, ymax, x, y, <span class="Constant">9</span>/fg=trace, bg
+<span id="L366" class="LineNr"> 366 </span>        y <span class="Special">&lt;-</span> increment
+<span id="L367" class="LineNr"> 367 </span>        copy-to already-hiding-lines?, <span class="Constant">1</span>/true
+<span id="L368" class="LineNr"> 368 </span>      <span class="Delimiter">}</span>
+<span id="L369" class="LineNr"> 369 </span>    <span class="Delimiter">}</span>
+<span id="L370" class="LineNr"> 370 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L371" class="LineNr"> 371 </span>    <span class="PreProc">loop</span>
+<span id="L372" class="LineNr"> 372 </span>  <span class="Delimiter">}</span>
+<span id="L373" class="LineNr"> 373 </span>  <span class="muComment"># prevent cursor from going too far down</span>
+<span id="L374" class="LineNr"> 374 </span>  <a href='trace.mu.html#L459'>clamp-cursor-to-bottom</a> self, y, <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, ymin, xmax, ymax
+<span id="L375" class="LineNr"> 375 </span>  <a href='trace.mu.html#L301'>mark-lines-clean</a> self
+<span id="L376" class="LineNr"> 376 </span>  <span class="PreProc">return</span> y
+<span id="L377" class="LineNr"> 377 </span><span class="Delimiter">}</span>
+<span id="L378" class="LineNr"> 378 </span>
+<span id="L379" class="LineNr"> 379 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L379'>render-trace-line</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _self: (addr <a href='trace.mu.html#L26'>trace-line</a>), xmin: int, ymin: int, xmax: int, ymax: int, fg: int, bg: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L380" class="LineNr"> 380 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L381" class="LineNr"> 381 </span>  <span class="PreProc">var</span> xsave/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy xmin
+<span id="L382" class="LineNr"> 382 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L383" class="LineNr"> 383 </span>  <span class="PreProc">var</span> label-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get self, label
+<span id="L384" class="LineNr"> 384 </span>  <span class="PreProc">var</span> _label/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *label-ah
+<span id="L385" class="LineNr"> 385 </span>  <span class="PreProc">var</span> label/<span class="Constant">ebx</span>: (addr array byte) <span class="Special">&lt;-</span> copy _label
+<span id="L386" class="LineNr"> 386 </span>  <span class="PreProc">var</span> error?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../105string-equal.subx.html#L8'>string-equal?</a> label, <span class="Constant">&quot;error&quot;</span>
+<span id="L387" class="LineNr"> 387 </span>  compare error?, <span class="Constant">0</span>/false
+<span id="L388" class="LineNr"> 388 </span>  <span class="Delimiter">{</span>
+<span id="L389" class="LineNr"> 389 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L390" class="LineNr"> 390 </span>    <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy xsave
+<span id="L391" class="LineNr"> 391 </span>    <span class="Delimiter">{</span>
+<span id="L392" class="LineNr"> 392 </span>      <span class="PreProc">var</span> depth/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, depth
+<span id="L393" class="LineNr"> 393 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L297'>draw-int32-decimal-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, *depth, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L394" class="LineNr"> 394 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L167'>draw-text-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; &quot;</span>, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L395" class="LineNr"> 395 </span>      <span class="muComment"># don't show label in UI; it's just for tests</span>
+<span id="L396" class="LineNr"> 396 </span>    <span class="Delimiter">}</span>
+<span id="L397" class="LineNr"> 397 </span>    xsave <span class="Special">&lt;-</span> copy x
+<span id="L398" class="LineNr"> 398 </span>  <span class="Delimiter">}</span>
+<span id="L399" class="LineNr"> 399 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="Special">&lt;-</span> get self, data
+<span id="L400" class="LineNr"> 400 </span>  <span class="PreProc">var</span> _data/<span class="Constant">eax</span>: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L401" class="LineNr"> 401 </span>  <span class="PreProc">var</span> data/<span class="Constant">ebx</span>: (addr array byte) <span class="Special">&lt;-</span> copy _data
+<span id="L402" class="LineNr"> 402 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy xsave
+<span id="L403" class="LineNr"> 403 </span>  x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L167'>draw-text-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, data, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L404" class="LineNr"> 404 </span>  y <span class="Special">&lt;-</span> increment
+<span id="L405" class="LineNr"> 405 </span>  <span class="PreProc">return</span> y
+<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="muComment"># this is super-inefficient, string comparing every trace line</span>
+<span id="L409" class="LineNr"> 409 </span><span class="muComment"># against every visible line on every render</span>
+<span id="L410" class="LineNr"> 410 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L410'>should-render?</a></span> _self: (addr trace), _line: (addr <a href='trace.mu.html#L26'>trace-line</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L411" class="LineNr"> 411 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L412" class="LineNr"> 412 </span>  <span class="muComment"># if visible? is already cached, just return it</span>
+<span id="L413" class="LineNr"> 413 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, recompute-visible?
+<span id="L414" class="LineNr"> 414 </span>  compare *dest, <span class="Constant">0</span>/false
+<span id="L415" class="LineNr"> 415 </span>  <span class="Delimiter">{</span>
+<span id="L416" class="LineNr"> 416 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L417" class="LineNr"> 417 </span>    <span class="PreProc">var</span> line/<span class="Constant">eax</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _line
+<span id="L418" class="LineNr"> 418 </span>    <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get line, visible?
+<span id="L419" class="LineNr"> 419 </span>    <span class="PreProc">return</span> *result
+<span id="L420" class="LineNr"> 420 </span>  <span class="Delimiter">}</span>
+<span id="L421" class="LineNr"> 421 </span>  <span class="muComment"># recompute</span>
+<span id="L422" class="LineNr"> 422 </span>  <span class="PreProc">var</span> candidates-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, visible
+<span id="L423" class="LineNr"> 423 </span>  <span class="PreProc">var</span> candidates/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *candidates-ah
+<span id="L424" class="LineNr"> 424 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L425" class="LineNr"> 425 </span>  <span class="PreProc">var</span> len/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> length candidates
+<span id="L426" class="LineNr"> 426 </span>  <span class="Delimiter">{</span>
+<span id="L427" class="LineNr"> 427 </span>    compare i, len
+<span id="L428" class="LineNr"> 428 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L429" class="LineNr"> 429 </span>    <span class="Delimiter">{</span>
+<span id="L430" class="LineNr"> 430 </span>      <span class="PreProc">var</span> curr-offset/<span class="Constant">ecx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset candidates, i
+<span id="L431" class="LineNr"> 431 </span>      <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index candidates, curr-offset
+<span id="L432" class="LineNr"> 432 </span>      <span class="PreProc">var</span> match?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L232'>trace-lines-equal?</a> curr, _line
+<span id="L433" class="LineNr"> 433 </span>      compare match?, <span class="Constant">0</span>/false
+<span id="L434" class="LineNr"> 434 </span>      <span class="PreProc">break-if-=</span>
+<span id="L435" class="LineNr"> 435 </span>      <span class="PreProc">var</span> line/<span class="Constant">eax</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _line
+<span id="L436" class="LineNr"> 436 </span>      <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get line, visible?
+<span id="L437" class="LineNr"> 437 </span>      copy-to *dest, <span class="Constant">1</span>/true
+<span id="L438" class="LineNr"> 438 </span>      <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L439" class="LineNr"> 439 </span>    <span class="Delimiter">}</span>
+<span id="L440" class="LineNr"> 440 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L441" class="LineNr"> 441 </span>    <span class="PreProc">loop</span>
+<span id="L442" class="LineNr"> 442 </span>  <span class="Delimiter">}</span>
+<span id="L443" class="LineNr"> 443 </span>  <span class="PreProc">var</span> line/<span class="Constant">eax</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _line
+<span id="L444" class="LineNr"> 444 </span>  <span class="PreProc">var</span> dest/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get line, visible?
+<span id="L445" class="LineNr"> 445 </span>  copy-to *dest, <span class="Constant">0</span>/false
+<span id="L446" class="LineNr"> 446 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L447" class="LineNr"> 447 </span><span class="Delimiter">}</span>
+<span id="L448" class="LineNr"> 448 </span>
+<span id="L449" class="LineNr"> 449 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L449'>clamp-cursor-to-top</a></span> _self: (addr trace), _y: int <span class="Delimiter">{</span>
+<span id="L450" class="LineNr"> 450 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy _y
+<span id="L451" class="LineNr"> 451 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L452" class="LineNr"> 452 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-y
+<span id="L453" class="LineNr"> 453 </span>  compare *cursor-y, y
+<span id="L454" class="LineNr"> 454 </span>  <span class="PreProc">break-if-&gt;=</span>
+<span id="L455" class="LineNr"> 455 </span>  copy-to *cursor-y, y
+<span id="L456" class="LineNr"> 456 </span><span class="Delimiter">}</span>
+<span id="L457" class="LineNr"> 457 </span>
+<span id="L458" class="LineNr"> 458 </span><span class="muComment"># extremely hacky; consider deleting test-render-trace-empty-3 when you clean this up</span>
+<span id="L459" class="LineNr"> 459 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L459'>clamp-cursor-to-bottom</a></span> _self: (addr trace), _y: int, <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), xmin: int, ymin: int, xmax: int, ymax: int <span class="Delimiter">{</span>
+<span id="L460" class="LineNr"> 460 </span>  <span class="PreProc">var</span> y/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy _y
+<span id="L461" class="LineNr"> 461 </span>  compare y, ymin
+<span id="L462" class="LineNr"> 462 </span>  <span class="Delimiter">{</span>
+<span id="L463" class="LineNr"> 463 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L464" class="LineNr"> 464 </span>    <span class="PreProc">return</span>
+<span id="L465" class="LineNr"> 465 </span>  <span class="Delimiter">}</span>
+<span id="L466" class="LineNr"> 466 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L467" class="LineNr"> 467 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L468" class="LineNr"> 468 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-y
+<span id="L469" class="LineNr"> 469 </span>  compare *cursor-y, y
+<span id="L470" class="LineNr"> 470 </span>  <span class="PreProc">break-if-&lt;=</span>
+<span id="L471" class="LineNr"> 471 </span>  copy-to *cursor-y, y
+<span id="L472" class="LineNr"> 472 </span>  <span class="muComment"># redraw cursor-line</span>
+<span id="L473" class="LineNr"> 473 </span>  <span class="muComment"># TODO: ugly duplication</span>
+<span id="L474" class="LineNr"> 474 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L475" class="LineNr"> 475 </span>  <span class="PreProc">var</span> trace/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L476" class="LineNr"> 476 </span>  <span class="PreProc">var</span> cursor-line-index-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-line-index
+<span id="L477" class="LineNr"> 477 </span>  <span class="PreProc">var</span> cursor-line-index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *cursor-line-index-addr
+<span id="L478" class="LineNr"> 478 </span>  <span class="PreProc">var</span> first-free/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L479" class="LineNr"> 479 </span>  compare cursor-line-index, *first-free
+<span id="L480" class="LineNr"> 480 </span>  <span class="Delimiter">{</span>
+<span id="L481" class="LineNr"> 481 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L482" class="LineNr"> 482 </span>    <span class="PreProc">return</span>
+<span id="L483" class="LineNr"> 483 </span>  <span class="Delimiter">}</span>
+<span id="L484" class="LineNr"> 484 </span>  <span class="PreProc">var</span> cursor-offset/<span class="Constant">ecx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, cursor-line-index
+<span id="L485" class="LineNr"> 485 </span>  <span class="PreProc">var</span> cursor-line/<span class="Constant">ecx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, cursor-offset
+<span id="L486" class="LineNr"> 486 </span>  <span class="PreProc">var</span> display?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L410'>should-render?</a> self, cursor-line
+<span id="L487" class="LineNr"> 487 </span>  <span class="Delimiter">{</span>
+<span id="L488" class="LineNr"> 488 </span>    compare display?, <span class="Constant">0</span>/false
+<span id="L489" class="LineNr"> 489 </span>    <span class="PreProc">break-if-=</span>
+<span id="L490" class="LineNr"> 490 </span>    <span class="PreProc">var</span> dummy/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L379'>render-trace-line</a> <a href='../500text-screen.mu.html#L9'>screen</a>, cursor-line, xmin, y, xmax, ymax, <span class="Constant">9</span>/fg=blue, <span class="Constant">7</span>/cursor-line-bg
+<span id="L491" class="LineNr"> 491 </span>    <span class="PreProc">return</span>
+<span id="L492" class="LineNr"> 492 </span>  <span class="Delimiter">}</span>
+<span id="L493" class="LineNr"> 493 </span>  <span class="PreProc">var</span> dummy1/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L494" class="LineNr"> 494 </span>  <span class="PreProc">var</span> dummy2/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L495" class="LineNr"> 495 </span>  dummy1, dummy2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L167'>draw-text-wrapping-right-then-down</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;...&quot;</span>, xmin, ymin, xmax, ymax, xmin, y, <span class="Constant">9</span>/fg=trace, <span class="Constant">7</span>/cursor-line-bg
+<span id="L496" class="LineNr"> 496 </span><span class="Delimiter">}</span>
+<span id="L497" class="LineNr"> 497 </span>
+<span id="L498" class="LineNr"> 498 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L498'>test-render-trace-empty</a></span> <span class="Delimiter">{</span>
+<span id="L499" class="LineNr"> 499 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L500" class="LineNr"> 500 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L501" class="LineNr"> 501 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L502" class="LineNr"> 502 </span>  <span class="muComment"># setup: screen</span>
+<span id="L503" class="LineNr"> 503 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L504" class="LineNr"> 504 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L505" class="LineNr"> 505 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height
+<span id="L506" class="LineNr"> 506 </span>  <span class="muComment">#</span>
+<span id="L507" class="LineNr"> 507 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
+<span id="L508" class="LineNr"> 508 </span>  <span class="muComment">#</span>
+<span id="L509" class="LineNr"> 509 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">0</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L498'>test-render-trace-empty</a>/cursor&quot;</span>
+<span id="L510" class="LineNr"> 510 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-render-trace-empty&quot;</span>
+<span id="L511" class="LineNr"> 511 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L498'>test-render-trace-empty</a>/bg&quot;</span>
+<span id="L512" class="LineNr"> 512 </span><span class="Delimiter">}</span>
+<span id="L513" class="LineNr"> 513 </span>
+<span id="L514" class="LineNr"> 514 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L514'>test-render-trace-empty-2</a></span> <span class="Delimiter">{</span>
+<span id="L515" class="LineNr"> 515 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L516" class="LineNr"> 516 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L517" class="LineNr"> 517 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L518" class="LineNr"> 518 </span>  <span class="muComment"># setup: screen</span>
+<span id="L519" class="LineNr"> 519 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L520" class="LineNr"> 520 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L521" class="LineNr"> 521 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height
+<span id="L522" class="LineNr"> 522 </span>  <span class="muComment">#</span>
+<span id="L523" class="LineNr"> 523 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">2</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor  <span class="muComment"># cursor below top row</span>
+<span id="L524" class="LineNr"> 524 </span>  <span class="muComment">#</span>
+<span id="L525" class="LineNr"> 525 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L514'>test-render-trace-empty-2</a>/cursor&quot;</span>
+<span id="L526" class="LineNr"> 526 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-render-trace-empty-2&quot;</span>
+<span id="L527" class="LineNr"> 527 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L514'>test-render-trace-empty-2</a>/bg&quot;</span>
+<span id="L528" class="LineNr"> 528 </span><span class="Delimiter">}</span>
+<span id="L529" class="LineNr"> 529 </span>
+<span id="L530" class="LineNr"> 530 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L530'>test-render-trace-empty-3</a></span> <span class="Delimiter">{</span>
+<span id="L531" class="LineNr"> 531 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L532" class="LineNr"> 532 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L533" class="LineNr"> 533 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L534" class="LineNr"> 534 </span>  <span class="muComment"># setup: screen</span>
+<span id="L535" class="LineNr"> 535 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L536" class="LineNr"> 536 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L537" class="LineNr"> 537 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height
+<span id="L538" class="LineNr"> 538 </span>  <span class="muComment">#</span>
+<span id="L539" class="LineNr"> 539 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">2</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor  <span class="muComment"># try show cursor</span>
+<span id="L540" class="LineNr"> 540 </span>  <span class="muComment"># still no cursor to show</span>
+<span id="L541" class="LineNr"> 541 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L530'>test-render-trace-empty-3</a>/cursor&quot;</span>
+<span id="L542" class="LineNr"> 542 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L530'>test-render-trace-empty-3</a>/line-above-cursor&quot;</span>
+<span id="L543" class="LineNr"> 543 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L530'>test-render-trace-empty-3</a>/bg-for-line-above-cursor&quot;</span>
+<span id="L544" class="LineNr"> 544 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-render-trace-empty-3&quot;</span>
+<span id="L545" class="LineNr"> 545 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L530'>test-render-trace-empty-3</a>/bg&quot;</span>
+<span id="L546" class="LineNr"> 546 </span><span class="Delimiter">}</span>
+<span id="L547" class="LineNr"> 547 </span>
+<span id="L548" class="LineNr"> 548 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L548'>test-render-trace-collapsed-by-default</a></span> <span class="Delimiter">{</span>
+<span id="L549" class="LineNr"> 549 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L550" class="LineNr"> 550 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L551" class="LineNr"> 551 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L552" class="LineNr"> 552 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;data&quot;</span>
+<span id="L553" class="LineNr"> 553 </span>  <span class="muComment"># setup: screen</span>
+<span id="L554" class="LineNr"> 554 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L555" class="LineNr"> 555 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L556" class="LineNr"> 556 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height
+<span id="L557" class="LineNr"> 557 </span>  <span class="muComment">#</span>
+<span id="L558" class="LineNr"> 558 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
+<span id="L559" class="LineNr"> 559 </span>  <span class="muComment">#</span>
+<span id="L560" class="LineNr"> 560 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L548'>test-render-trace-collapsed-by-default</a>/cursor&quot;</span>
+<span id="L561" class="LineNr"> 561 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;... &quot;</span>, <span class="Constant">&quot;F - test-render-trace-collapsed-by-default&quot;</span>
+<span id="L562" class="LineNr"> 562 </span><span class="Delimiter">}</span>
+<span id="L563" class="LineNr"> 563 </span>
+<span id="L564" class="LineNr"> 564 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L564'>test-render-trace-error</a></span> <span class="Delimiter">{</span>
+<span id="L565" class="LineNr"> 565 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L566" class="LineNr"> 566 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L567" class="LineNr"> 567 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L568" class="LineNr"> 568 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L569" class="LineNr"> 569 </span>  <span class="muComment"># setup: screen</span>
+<span id="L570" class="LineNr"> 570 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L571" class="LineNr"> 571 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L572" class="LineNr"> 572 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L573" class="LineNr"> 573 </span>  <span class="muComment">#</span>
+<span id="L574" class="LineNr"> 574 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
+<span id="L575" class="LineNr"> 575 </span>  <span class="muComment">#</span>
+<span id="L576" class="LineNr"> 576 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L564'>test-render-trace-error</a>/cursor&quot;</span>
+<span id="L577" class="LineNr"> 577 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;error&quot;</span>, <span class="Constant">&quot;F - test-render-trace-error&quot;</span>
+<span id="L578" class="LineNr"> 578 </span><span class="Delimiter">}</span>
+<span id="L579" class="LineNr"> 579 </span>
+<span id="L580" class="LineNr"> 580 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L580'>test-render-trace-error-at-start</a></span> <span class="Delimiter">{</span>
+<span id="L581" class="LineNr"> 581 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L582" class="LineNr"> 582 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L583" class="LineNr"> 583 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L584" class="LineNr"> 584 </span>  <span class="muComment">#</span>
+<span id="L585" class="LineNr"> 585 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L586" class="LineNr"> 586 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;data&quot;</span>
+<span id="L587" class="LineNr"> 587 </span>  <span class="muComment"># setup: screen</span>
+<span id="L588" class="LineNr"> 588 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L589" class="LineNr"> 589 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L590" class="LineNr"> 590 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L591" class="LineNr"> 591 </span>  <span class="muComment">#</span>
+<span id="L592" class="LineNr"> 592 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
+<span id="L593" class="LineNr"> 593 </span>  <span class="muComment">#</span>
+<span id="L594" class="LineNr"> 594 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L580'>test-render-trace-error-at-start</a>/cursor&quot;</span>
+<span id="L595" class="LineNr"> 595 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;error&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L580'>test-render-trace-error-at-start</a>/0&quot;</span>
+<span id="L596" class="LineNr"> 596 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;...  &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L580'>test-render-trace-error-at-start</a>/1&quot;</span>
+<span id="L597" class="LineNr"> 597 </span><span class="Delimiter">}</span>
+<span id="L598" class="LineNr"> 598 </span>
+<span id="L599" class="LineNr"> 599 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L599'>test-render-trace-error-at-end</a></span> <span class="Delimiter">{</span>
+<span id="L600" class="LineNr"> 600 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L601" class="LineNr"> 601 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L602" class="LineNr"> 602 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L603" class="LineNr"> 603 </span>  <span class="muComment">#</span>
+<span id="L604" class="LineNr"> 604 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;data&quot;</span>
+<span id="L605" class="LineNr"> 605 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L606" class="LineNr"> 606 </span>  <span class="muComment"># setup: screen</span>
+<span id="L607" class="LineNr"> 607 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L608" class="LineNr"> 608 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L609" class="LineNr"> 609 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L610" class="LineNr"> 610 </span>  <span class="muComment">#</span>
+<span id="L611" class="LineNr"> 611 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
+<span id="L612" class="LineNr"> 612 </span>  <span class="muComment">#</span>
+<span id="L613" class="LineNr"> 613 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L599'>test-render-trace-error-at-end</a>/cursor&quot;</span>
+<span id="L614" class="LineNr"> 614 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;...  &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L599'>test-render-trace-error-at-end</a>/0&quot;</span>
+<span id="L615" class="LineNr"> 615 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;error&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L599'>test-render-trace-error-at-end</a>/1&quot;</span>
+<span id="L616" class="LineNr"> 616 </span><span class="Delimiter">}</span>
+<span id="L617" class="LineNr"> 617 </span>
+<span id="L618" class="LineNr"> 618 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L618'>test-render-trace-error-in-the-middle</a></span> <span class="Delimiter">{</span>
+<span id="L619" class="LineNr"> 619 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L620" class="LineNr"> 620 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L621" class="LineNr"> 621 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L622" class="LineNr"> 622 </span>  <span class="muComment">#</span>
+<span id="L623" class="LineNr"> 623 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L624" class="LineNr"> 624 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L625" class="LineNr"> 625 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L626" class="LineNr"> 626 </span>  <span class="muComment"># setup: screen</span>
+<span id="L627" class="LineNr"> 627 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L628" class="LineNr"> 628 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L629" class="LineNr"> 629 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L630" class="LineNr"> 630 </span>  <span class="muComment">#</span>
+<span id="L631" class="LineNr"> 631 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
+<span id="L632" class="LineNr"> 632 </span>  <span class="muComment">#</span>
+<span id="L633" class="LineNr"> 633 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">3</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L618'>test-render-trace-error-in-the-middle</a>/cursor&quot;</span>
+<span id="L634" class="LineNr"> 634 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;...  &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L618'>test-render-trace-error-in-the-middle</a>/0&quot;</span>
+<span id="L635" class="LineNr"> 635 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;error&quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L618'>test-render-trace-error-in-the-middle</a>/1&quot;</span>
+<span id="L636" class="LineNr"> 636 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;...  &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L618'>test-render-trace-error-in-the-middle</a>/2&quot;</span>
+<span id="L637" class="LineNr"> 637 </span><span class="Delimiter">}</span>
+<span id="L638" class="LineNr"> 638 </span>
+<span id="L639" class="LineNr"> 639 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a></span> <span class="Delimiter">{</span>
+<span id="L640" class="LineNr"> 640 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L641" class="LineNr"> 641 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L642" class="LineNr"> 642 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L643" class="LineNr"> 643 </span>  <span class="muComment">#</span>
+<span id="L644" class="LineNr"> 644 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L645" class="LineNr"> 645 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L646" class="LineNr"> 646 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L647" class="LineNr"> 647 </span>  <span class="muComment"># setup: screen</span>
+<span id="L648" class="LineNr"> 648 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L649" class="LineNr"> 649 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L650" class="LineNr"> 650 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L651" class="LineNr"> 651 </span>  <span class="muComment">#</span>
+<span id="L652" class="LineNr"> 652 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L653" class="LineNr"> 653 </span>  <span class="muComment">#</span>
+<span id="L654" class="LineNr"> 654 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a>/0&quot;</span>
+<span id="L655" class="LineNr"> 655 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a>/0/cursor&quot;</span>
+<span id="L656" class="LineNr"> 656 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a>/1&quot;</span>
+<span id="L657" class="LineNr"> 657 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a>/1/cursor&quot;</span>
+<span id="L658" class="LineNr"> 658 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a>/2&quot;</span>
+<span id="L659" class="LineNr"> 659 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L639'>test-render-trace-cursor-in-single-line</a>/2/cursor&quot;</span>
+<span id="L660" class="LineNr"> 660 </span><span class="Delimiter">}</span>
+<span id="L661" class="LineNr"> 661 </span>
+<span id="L662" class="LineNr"> 662 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L662'>render-trace-menu</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L663" class="LineNr"> 663 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L664" class="LineNr"> 664 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L665" class="LineNr"> 665 </span>  width, height <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L50'>screen-size</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L666" class="LineNr"> 666 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy height
+<span id="L667" class="LineNr"> 667 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L668" class="LineNr"> 668 </span>  <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L669" class="LineNr"> 669 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; ctrl-s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L670" class="LineNr"> 670 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; <a href='sandbox.mu.html#L170'>run</a> <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L671" class="LineNr"> 671 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; tab &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">3</span>/bg=cyan
+<span id="L672" class="LineNr"> 672 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; move to <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L673" class="LineNr"> 673 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; j &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L674" class="LineNr"> 674 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; down  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L675" class="LineNr"> 675 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; k &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L676" class="LineNr"> 676 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; up  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L677" class="LineNr"> 677 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; enter &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L678" class="LineNr"> 678 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; <a href='trace.mu.html#L717'>expand</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L679" class="LineNr"> 679 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; backspace &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg=grey
+<span id="L680" class="LineNr"> 680 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot; <a href='trace.mu.html#L757'>collapse</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L681" class="LineNr"> 681 </span><span class="Delimiter">}</span>
+<span id="L682" class="LineNr"> 682 </span>
+<span id="L683" class="LineNr"> 683 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L683'>edit-trace</a></span> _self: (addr trace), key: grapheme <span class="Delimiter">{</span>
+<span id="L684" class="LineNr"> 684 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L685" class="LineNr"> 685 </span>  <span class="muComment"># cursor down</span>
+<span id="L686" class="LineNr"> 686 </span>  <span class="Delimiter">{</span>
+<span id="L687" class="LineNr"> 687 </span>    compare key, <span class="Constant">0x6a</span>/j
+<span id="L688" class="LineNr"> 688 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L689" class="LineNr"> 689 </span>    <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-y
+<span id="L690" class="LineNr"> 690 </span>    increment *cursor-y
+<span id="L691" class="LineNr"> 691 </span>    <span class="PreProc">return</span>
+<span id="L692" class="LineNr"> 692 </span>  <span class="Delimiter">}</span>
+<span id="L693" class="LineNr"> 693 </span>  <span class="muComment"># cursor up</span>
+<span id="L694" class="LineNr"> 694 </span>  <span class="Delimiter">{</span>
+<span id="L695" class="LineNr"> 695 </span>    compare key, <span class="Constant">0x6b</span>/k
+<span id="L696" class="LineNr"> 696 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L697" class="LineNr"> 697 </span>    <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-y
+<span id="L698" class="LineNr"> 698 </span>    decrement *cursor-y
+<span id="L699" class="LineNr"> 699 </span>    <span class="PreProc">return</span>
+<span id="L700" class="LineNr"> 700 </span>  <span class="Delimiter">}</span>
+<span id="L701" class="LineNr"> 701 </span>  <span class="muComment"># enter = expand</span>
+<span id="L702" class="LineNr"> 702 </span>  <span class="Delimiter">{</span>
+<span id="L703" class="LineNr"> 703 </span>    compare key, <span class="Constant">0xa</span>/newline
+<span id="L704" class="LineNr"> 704 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L705" class="LineNr"> 705 </span>    <a href='trace.mu.html#L717'>expand</a> self
+<span id="L706" class="LineNr"> 706 </span>    <span class="PreProc">return</span>
+<span id="L707" class="LineNr"> 707 </span>  <span class="Delimiter">}</span>
+<span id="L708" class="LineNr"> 708 </span>  <span class="muComment"># backspace = collapse</span>
+<span id="L709" class="LineNr"> 709 </span>  <span class="Delimiter">{</span>
+<span id="L710" class="LineNr"> 710 </span>    compare key, <span class="Constant">8</span>/backspace
+<span id="L711" class="LineNr"> 711 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L712" class="LineNr"> 712 </span>    <a href='trace.mu.html#L757'>collapse</a> self
+<span id="L713" class="LineNr"> 713 </span>    <span class="PreProc">return</span>
+<span id="L714" class="LineNr"> 714 </span>  <span class="Delimiter">}</span>
+<span id="L715" class="LineNr"> 715 </span><span class="Delimiter">}</span>
+<span id="L716" class="LineNr"> 716 </span>
+<span id="L717" class="LineNr"> 717 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L717'>expand</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L718" class="LineNr"> 718 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L719" class="LineNr"> 719 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L720" class="LineNr"> 720 </span>  <span class="PreProc">var</span> _trace/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L721" class="LineNr"> 721 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edi</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _trace
+<span id="L722" class="LineNr"> 722 </span>  <span class="PreProc">var</span> cursor-line-index-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-line-index
+<span id="L723" class="LineNr"> 723 </span>  <span class="PreProc">var</span> cursor-line-index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *cursor-line-index-addr
+<span id="L724" class="LineNr"> 724 </span>  <span class="PreProc">var</span> cursor-line-offset/<span class="Constant">eax</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, cursor-line-index
+<span id="L725" class="LineNr"> 725 </span>  <span class="PreProc">var</span> cursor-line/<span class="Constant">edx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, cursor-line-offset
+<span id="L726" class="LineNr"> 726 </span>  <span class="PreProc">var</span> cursor-line-visible?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get cursor-line, visible?
+<span id="L727" class="LineNr"> 727 </span>  <span class="PreProc">var</span> cursor-line-depth/<span class="Constant">ebx</span>: (addr int) <span class="Special">&lt;-</span> get cursor-line, depth
+<span id="L728" class="LineNr"> 728 </span>  <span class="PreProc">var</span> target-depth/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy *cursor-line-depth
+<span id="L729" class="LineNr"> 729 </span>  <span class="muComment"># if cursor-line is already visible, increment target-depth</span>
+<span id="L730" class="LineNr"> 730 </span>  compare *cursor-line-visible?, <span class="Constant">0</span>/false
+<span id="L731" class="LineNr"> 731 </span>  <span class="Delimiter">{</span>
+<span id="L732" class="LineNr"> 732 </span>    <span class="PreProc">break-if-=</span>
+<span id="L733" class="LineNr"> 733 </span>    target-depth <span class="Special">&lt;-</span> increment
+<span id="L734" class="LineNr"> 734 </span>  <span class="Delimiter">}</span>
+<span id="L735" class="LineNr"> 735 </span>  <span class="muComment"># reveal the run of lines starting at cursor-line-index with depth target-depth</span>
+<span id="L736" class="LineNr"> 736 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy cursor-line-index
+<span id="L737" class="LineNr"> 737 </span>  <span class="PreProc">var</span> max/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L738" class="LineNr"> 738 </span>  <span class="Delimiter">{</span>
+<span id="L739" class="LineNr"> 739 </span>    compare i, *max
+<span id="L740" class="LineNr"> 740 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L741" class="LineNr"> 741 </span>    <span class="PreProc">var</span> curr-line-offset/<span class="Constant">eax</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, i
+<span id="L742" class="LineNr"> 742 </span>    <span class="PreProc">var</span> curr-line/<span class="Constant">edx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, curr-line-offset
+<span id="L743" class="LineNr"> 743 </span>    <span class="PreProc">var</span> curr-line-depth/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get curr-line, depth
+<span id="L744" class="LineNr"> 744 </span>    compare *curr-line-depth, target-depth
+<span id="L745" class="LineNr"> 745 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L746" class="LineNr"> 746 </span>    <span class="Delimiter">{</span>
+<span id="L747" class="LineNr"> 747 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L748" class="LineNr"> 748 </span>      <span class="PreProc">var</span> curr-line-visible?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get curr-line, visible?
+<span id="L749" class="LineNr"> 749 </span>      copy-to *curr-line-visible?, <span class="Constant">1</span>/true
+<span id="L750" class="LineNr"> 750 </span>      <a href='trace.mu.html#L823'>reveal-trace-line</a> self, curr-line
+<span id="L751" class="LineNr"> 751 </span>    <span class="Delimiter">}</span>
+<span id="L752" class="LineNr"> 752 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L753" class="LineNr"> 753 </span>    <span class="PreProc">loop</span>
+<span id="L754" class="LineNr"> 754 </span>  <span class="Delimiter">}</span>
+<span id="L755" class="LineNr"> 755 </span><span class="Delimiter">}</span>
+<span id="L756" class="LineNr"> 756 </span>
+<span id="L757" class="LineNr"> 757 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L757'>collapse</a></span> _self: (addr trace) <span class="Delimiter">{</span>
+<span id="L758" class="LineNr"> 758 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L759" class="LineNr"> 759 </span>  <span class="PreProc">var</span> trace-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L760" class="LineNr"> 760 </span>  <span class="PreProc">var</span> _trace/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *trace-ah
+<span id="L761" class="LineNr"> 761 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edi</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> copy _trace
+<span id="L762" class="LineNr"> 762 </span>  <span class="PreProc">var</span> cursor-line-index-addr/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-line-index
+<span id="L763" class="LineNr"> 763 </span>  <span class="PreProc">var</span> cursor-line-index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy *cursor-line-index-addr
+<span id="L764" class="LineNr"> 764 </span>  <span class="PreProc">var</span> cursor-line-offset/<span class="Constant">eax</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, cursor-line-index
+<span id="L765" class="LineNr"> 765 </span>  <span class="PreProc">var</span> cursor-line/<span class="Constant">edx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, cursor-line-offset
+<span id="L766" class="LineNr"> 766 </span>  <span class="PreProc">var</span> cursor-line-visible?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get cursor-line, visible?
+<span id="L767" class="LineNr"> 767 </span>  <span class="muComment"># if cursor-line is not visible, do nothing</span>
+<span id="L768" class="LineNr"> 768 </span>  compare *cursor-line-visible?, <span class="Constant">0</span>/false
+<span id="L769" class="LineNr"> 769 </span>  <span class="Delimiter">{</span>
+<span id="L770" class="LineNr"> 770 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L771" class="LineNr"> 771 </span>    <span class="PreProc">return</span>
+<span id="L772" class="LineNr"> 772 </span>  <span class="Delimiter">}</span>
+<span id="L773" class="LineNr"> 773 </span>  <span class="muComment"># hide all lines between previous and next line with a lower depth</span>
+<span id="L774" class="LineNr"> 774 </span>  <span class="PreProc">var</span> cursor-line-depth/<span class="Constant">ebx</span>: (addr int) <span class="Special">&lt;-</span> get cursor-line, depth
+<span id="L775" class="LineNr"> 775 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, cursor-y
+<span id="L776" class="LineNr"> 776 </span>  <span class="PreProc">var</span> target-depth/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy *cursor-line-depth
+<span id="L777" class="LineNr"> 777 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy cursor-line-index
+<span id="L778" class="LineNr"> 778 </span>  $collapse:loop1: <span class="Delimiter">{</span>
+<span id="L779" class="LineNr"> 779 </span>    compare i, <span class="Constant">0</span>
+<span id="L780" class="LineNr"> 780 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L781" class="LineNr"> 781 </span>    <span class="PreProc">var</span> curr-line-offset/<span class="Constant">eax</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, i
+<span id="L782" class="LineNr"> 782 </span>    <span class="PreProc">var</span> curr-line/<span class="Constant">eax</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, curr-line-offset
+<span id="L783" class="LineNr"> 783 </span>    <span class="Delimiter">{</span>
+<span id="L784" class="LineNr"> 784 </span>      <span class="PreProc">var</span> curr-line-depth/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get curr-line, depth
+<span id="L785" class="LineNr"> 785 </span>      compare *curr-line-depth, target-depth
+<span id="L786" class="LineNr"> 786 </span>      <span class="PreProc">break-if-&lt;</span> $collapse:loop1
+<span id="L787" class="LineNr"> 787 </span>    <span class="Delimiter">}</span>
+<span id="L788" class="LineNr"> 788 </span>    <span class="muComment"># if cursor-line is visible, decrement cursor-y</span>
+<span id="L789" class="LineNr"> 789 </span>    <span class="Delimiter">{</span>
+<span id="L790" class="LineNr"> 790 </span>      <span class="PreProc">var</span> curr-line-visible?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get curr-line, visible?
+<span id="L791" class="LineNr"> 791 </span>      compare *curr-line-visible?, <span class="Constant">0</span>/false
+<span id="L792" class="LineNr"> 792 </span>      <span class="PreProc">break-if-=</span>
+<span id="L793" class="LineNr"> 793 </span>      decrement *cursor-y
+<span id="L794" class="LineNr"> 794 </span>    <span class="Delimiter">}</span>
+<span id="L795" class="LineNr"> 795 </span>    i <span class="Special">&lt;-</span> decrement
+<span id="L796" class="LineNr"> 796 </span>    <span class="PreProc">loop</span>
+<span id="L797" class="LineNr"> 797 </span>  <span class="Delimiter">}</span>
+<span id="L798" class="LineNr"> 798 </span>  i <span class="Special">&lt;-</span> increment
+<span id="L799" class="LineNr"> 799 </span>  <span class="PreProc">var</span> max/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, first-free
+<span id="L800" class="LineNr"> 800 </span>  $collapse:loop2: <span class="Delimiter">{</span>
+<span id="L801" class="LineNr"> 801 </span>    compare i, *max
+<span id="L802" class="LineNr"> 802 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L803" class="LineNr"> 803 </span>    <span class="PreProc">var</span> curr-line-offset/<span class="Constant">eax</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset trace, i
+<span id="L804" class="LineNr"> 804 </span>    <span class="PreProc">var</span> curr-line/<span class="Constant">edx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index trace, curr-line-offset
+<span id="L805" class="LineNr"> 805 </span>    <span class="PreProc">var</span> curr-line-depth/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get curr-line, depth
+<span id="L806" class="LineNr"> 806 </span>    compare *curr-line-depth, target-depth
+<span id="L807" class="LineNr"> 807 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L808" class="LineNr"> 808 </span>    <span class="Delimiter">{</span>
+<span id="L809" class="LineNr"> 809 </span>      <a href='trace.mu.html#L848'>hide-trace-line</a> self, curr-line
+<span id="L810" class="LineNr"> 810 </span>      <span class="PreProc">var</span> curr-line-visible?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get curr-line, visible?
+<span id="L811" class="LineNr"> 811 </span>      copy-to *curr-line-visible?, <span class="Constant">0</span>/false
+<span id="L812" class="LineNr"> 812 </span>    <span class="Delimiter">}</span>
+<span id="L813" class="LineNr"> 813 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L814" class="LineNr"> 814 </span>    <span class="PreProc">loop</span>
+<span id="L815" class="LineNr"> 815 </span>  <span class="Delimiter">}</span>
+<span id="L816" class="LineNr"> 816 </span><span class="Delimiter">}</span>
+<span id="L817" class="LineNr"> 817 </span>
+<span id="L818" class="LineNr"> 818 </span><span class="muComment"># the 'visible' array is not required to be in order</span>
+<span id="L819" class="LineNr"> 819 </span><span class="muComment"># elements can also be deleted out of order</span>
+<span id="L820" class="LineNr"> 820 </span><span class="muComment"># so it can have holes</span>
+<span id="L821" class="LineNr"> 821 </span><span class="muComment"># however, lines in it always have visible? set</span>
+<span id="L822" class="LineNr"> 822 </span><span class="muComment"># we'll use visible? being unset as a sign of emptiness</span>
+<span id="L823" class="LineNr"> 823 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L823'>reveal-trace-line</a></span> _self: (addr trace), line: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Delimiter">{</span>
+<span id="L824" class="LineNr"> 824 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L825" class="LineNr"> 825 </span>  <span class="PreProc">var</span> visible-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, visible
+<span id="L826" class="LineNr"> 826 </span>  <span class="PreProc">var</span> visible/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *visible-ah
+<span id="L827" class="LineNr"> 827 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L828" class="LineNr"> 828 </span>  <span class="PreProc">var</span> len/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> length visible
+<span id="L829" class="LineNr"> 829 </span>  <span class="Delimiter">{</span>
+<span id="L830" class="LineNr"> 830 </span>    compare i, len
+<span id="L831" class="LineNr"> 831 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L832" class="LineNr"> 832 </span>    <span class="PreProc">var</span> curr-offset/<span class="Constant">edx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset visible, i
+<span id="L833" class="LineNr"> 833 </span>    <span class="PreProc">var</span> curr/<span class="Constant">edx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index visible, curr-offset
+<span id="L834" class="LineNr"> 834 </span>    <span class="PreProc">var</span> curr-visible?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get curr, visible?
+<span id="L835" class="LineNr"> 835 </span>    compare *curr-visible?, <span class="Constant">0</span>/false
+<span id="L836" class="LineNr"> 836 </span>    <span class="Delimiter">{</span>
+<span id="L837" class="LineNr"> 837 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L838" class="LineNr"> 838 </span>      <span class="muComment"># empty slot found</span>
+<span id="L839" class="LineNr"> 839 </span>      copy-object line, curr
+<span id="L840" class="LineNr"> 840 </span>      <span class="PreProc">return</span>
+<span id="L841" class="LineNr"> 841 </span>    <span class="Delimiter">}</span>
+<span id="L842" class="LineNr"> 842 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L843" class="LineNr"> 843 </span>    <span class="PreProc">loop</span>
+<span id="L844" class="LineNr"> 844 </span>  <span class="Delimiter">}</span>
+<span id="L845" class="LineNr"> 845 </span>  <a href='../501draw-text.mu.html#L459'>abort</a> <span class="Constant">&quot;too many visible lines; increase size of array trace.visible&quot;</span>
+<span id="L846" class="LineNr"> 846 </span><span class="Delimiter">}</span>
+<span id="L847" class="LineNr"> 847 </span>
+<span id="L848" class="LineNr"> 848 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L848'>hide-trace-line</a></span> _self: (addr trace), line: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Delimiter">{</span>
+<span id="L849" class="LineNr"> 849 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> copy _self
+<span id="L850" class="LineNr"> 850 </span>  <span class="PreProc">var</span> visible-ah/<span class="Constant">eax</span>: (addr handle array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> get self, visible
+<span id="L851" class="LineNr"> 851 </span>  <span class="PreProc">var</span> visible/<span class="Constant">eax</span>: (addr array <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *visible-ah
+<span id="L852" class="LineNr"> 852 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L853" class="LineNr"> 853 </span>  <span class="PreProc">var</span> len/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> length visible
+<span id="L854" class="LineNr"> 854 </span>  <span class="Delimiter">{</span>
+<span id="L855" class="LineNr"> 855 </span>    compare i, len
+<span id="L856" class="LineNr"> 856 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L857" class="LineNr"> 857 </span>    <span class="PreProc">var</span> curr-offset/<span class="Constant">edx</span>: (offset <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> compute-offset visible, i
+<span id="L858" class="LineNr"> 858 </span>    <span class="PreProc">var</span> curr/<span class="Constant">edx</span>: (addr <a href='trace.mu.html#L26'>trace-line</a>) <span class="Special">&lt;-</span> index visible, curr-offset
+<span id="L859" class="LineNr"> 859 </span>    <span class="PreProc">var</span> found?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L232'>trace-lines-equal?</a> curr, line
+<span id="L860" class="LineNr"> 860 </span>    compare found?, <span class="Constant">0</span>/false
+<span id="L861" class="LineNr"> 861 </span>    <span class="Delimiter">{</span>
+<span id="L862" class="LineNr"> 862 </span>      <span class="PreProc">break-if-=</span>
+<span id="L863" class="LineNr"> 863 </span>      clear-object curr
+<span id="L864" class="LineNr"> 864 </span>    <span class="Delimiter">}</span>
+<span id="L865" class="LineNr"> 865 </span>    i <span class="Special">&lt;-</span> increment
+<span id="L866" class="LineNr"> 866 </span>    <span class="PreProc">loop</span>
+<span id="L867" class="LineNr"> 867 </span>  <span class="Delimiter">}</span>
+<span id="L868" class="LineNr"> 868 </span><span class="Delimiter">}</span>
+<span id="L869" class="LineNr"> 869 </span>
+<span id="L870" class="LineNr"> 870 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a></span> <span class="Delimiter">{</span>
+<span id="L871" class="LineNr"> 871 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L872" class="LineNr"> 872 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L873" class="LineNr"> 873 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L874" class="LineNr"> 874 </span>  <span class="muComment">#</span>
+<span id="L875" class="LineNr"> 875 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L876" class="LineNr"> 876 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L877" class="LineNr"> 877 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L878" class="LineNr"> 878 </span>  <span class="muComment"># setup: screen</span>
+<span id="L879" class="LineNr"> 879 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L880" class="LineNr"> 880 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L881" class="LineNr"> 881 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L882" class="LineNr"> 882 </span>  <span class="muComment">#</span>
+<span id="L883" class="LineNr"> 883 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L884" class="LineNr"> 884 </span>  <span class="muComment">#</span>
+<span id="L885" class="LineNr"> 885 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/pre-0&quot;</span>
+<span id="L886" class="LineNr"> 886 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/pre-0/cursor&quot;</span>
+<span id="L887" class="LineNr"> 887 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/pre-1&quot;</span>
+<span id="L888" class="LineNr"> 888 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/pre-1/cursor&quot;</span>
+<span id="L889" class="LineNr"> 889 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/pre-2&quot;</span>
+<span id="L890" class="LineNr"> 890 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/pre-2/cursor&quot;</span>
+<span id="L891" class="LineNr"> 891 </span>  <span class="muComment"># cursor down</span>
+<span id="L892" class="LineNr"> 892 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L893" class="LineNr"> 893 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L894" class="LineNr"> 894 </span>  <span class="muComment">#</span>
+<span id="L895" class="LineNr"> 895 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/down-0&quot;</span>
+<span id="L896" class="LineNr"> 896 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/down-0/cursor&quot;</span>
+<span id="L897" class="LineNr"> 897 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/down-1&quot;</span>
+<span id="L898" class="LineNr"> 898 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/down-1/cursor&quot;</span>
+<span id="L899" class="LineNr"> 899 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/down-2&quot;</span>
+<span id="L900" class="LineNr"> 900 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/down-2/cursor&quot;</span>
+<span id="L901" class="LineNr"> 901 </span>  <span class="muComment"># cursor up</span>
+<span id="L902" class="LineNr"> 902 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6b</span>/k
+<span id="L903" class="LineNr"> 903 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L904" class="LineNr"> 904 </span>  <span class="muComment">#</span>
+<span id="L905" class="LineNr"> 905 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/up-0&quot;</span>
+<span id="L906" class="LineNr"> 906 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/up-0/cursor&quot;</span>
+<span id="L907" class="LineNr"> 907 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/up-1&quot;</span>
+<span id="L908" class="LineNr"> 908 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/up-1/cursor&quot;</span>
+<span id="L909" class="LineNr"> 909 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/up-2&quot;</span>
+<span id="L910" class="LineNr"> 910 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L870'>test-cursor-down-and-up-within-trace</a>/up-2/cursor&quot;</span>
+<span id="L911" class="LineNr"> 911 </span><span class="Delimiter">}</span>
+<span id="L912" class="LineNr"> 912 </span>
+<span id="L913" class="LineNr"> 913 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a></span> <span class="Delimiter">{</span>
+<span id="L914" class="LineNr"> 914 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L915" class="LineNr"> 915 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L916" class="LineNr"> 916 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L917" class="LineNr"> 917 </span>  <span class="muComment">#</span>
+<span id="L918" class="LineNr"> 918 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L919" class="LineNr"> 919 </span>  <span class="Special"><a href='trace.mu.html#L110'>error</a></span> t, <span class="Constant">&quot;error&quot;</span>
+<span id="L920" class="LineNr"> 920 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L921" class="LineNr"> 921 </span>  <span class="muComment"># setup: screen</span>
+<span id="L922" class="LineNr"> 922 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L923" class="LineNr"> 923 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L924" class="LineNr"> 924 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height
+<span id="L925" class="LineNr"> 925 </span>  <span class="muComment">#</span>
+<span id="L926" class="LineNr"> 926 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L927" class="LineNr"> 927 </span>  <span class="muComment">#</span>
+<span id="L928" class="LineNr"> 928 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/pre-0&quot;</span>
+<span id="L929" class="LineNr"> 929 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/pre-0/cursor&quot;</span>
+<span id="L930" class="LineNr"> 930 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/pre-1&quot;</span>
+<span id="L931" class="LineNr"> 931 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/pre-1/cursor&quot;</span>
+<span id="L932" class="LineNr"> 932 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/pre-2&quot;</span>
+<span id="L933" class="LineNr"> 933 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/pre-2/cursor&quot;</span>
+<span id="L934" class="LineNr"> 934 </span>  <span class="muComment"># cursor down several times</span>
+<span id="L935" class="LineNr"> 935 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L936" class="LineNr"> 936 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L937" class="LineNr"> 937 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L938" class="LineNr"> 938 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L939" class="LineNr"> 939 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L940" class="LineNr"> 940 </span>  <span class="muComment"># hack: we do need to render to make this test pass; we're mixing state management with rendering</span>
+<span id="L941" class="LineNr"> 941 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L942" class="LineNr"> 942 </span>  <span class="muComment"># cursor clamps at bottom</span>
+<span id="L943" class="LineNr"> 943 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/down-0&quot;</span>
+<span id="L944" class="LineNr"> 944 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/down-0/cursor&quot;</span>
+<span id="L945" class="LineNr"> 945 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/down-1&quot;</span>
+<span id="L946" class="LineNr"> 946 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/down-1/cursor&quot;</span>
+<span id="L947" class="LineNr"> 947 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/down-2&quot;</span>
+<span id="L948" class="LineNr"> 948 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L913'>test-cursor-down-past-bottom-of-trace</a>/down-2/cursor&quot;</span>
+<span id="L949" class="LineNr"> 949 </span><span class="Delimiter">}</span>
+<span id="L950" class="LineNr"> 950 </span>
+<span id="L951" class="LineNr"> 951 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L951'>test-expand-within-trace</a></span> <span class="Delimiter">{</span>
+<span id="L952" class="LineNr"> 952 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L953" class="LineNr"> 953 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L954" class="LineNr"> 954 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L955" class="LineNr"> 955 </span>  <span class="muComment">#</span>
+<span id="L956" class="LineNr"> 956 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L957" class="LineNr"> 957 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L958" class="LineNr"> 958 </span>  <span class="muComment"># setup: screen</span>
+<span id="L959" class="LineNr"> 959 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L960" class="LineNr"> 960 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L961" class="LineNr"> 961 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L962" class="LineNr"> 962 </span>  <span class="muComment">#</span>
+<span id="L963" class="LineNr"> 963 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L964" class="LineNr"> 964 </span>  <span class="muComment">#</span>
+<span id="L965" class="LineNr"> 965 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/pre-0&quot;</span>
+<span id="L966" class="LineNr"> 966 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/pre-0/cursor&quot;</span>
+<span id="L967" class="LineNr"> 967 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/pre-1&quot;</span>
+<span id="L968" class="LineNr"> 968 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/pre-1/cursor&quot;</span>
+<span id="L969" class="LineNr"> 969 </span>  <span class="muComment"># expand</span>
+<span id="L970" class="LineNr"> 970 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L971" class="LineNr"> 971 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L972" class="LineNr"> 972 </span>  <span class="muComment">#</span>
+<span id="L973" class="LineNr"> 973 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/expand-0&quot;</span>
+<span id="L974" class="LineNr"> 974 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/expand-0/cursor&quot;</span>
+<span id="L975" class="LineNr"> 975 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/expand-1&quot;</span>
+<span id="L976" class="LineNr"> 976 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/expand-1/cursor&quot;</span>
+<span id="L977" class="LineNr"> 977 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/expand-2&quot;</span>
+<span id="L978" class="LineNr"> 978 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L951'>test-expand-within-trace</a>/expand-2/cursor&quot;</span>
+<span id="L979" class="LineNr"> 979 </span><span class="Delimiter">}</span>
+<span id="L980" class="LineNr"> 980 </span>
+<span id="L981" class="LineNr"> 981 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a></span> <span class="Delimiter">{</span>
+<span id="L982" class="LineNr"> 982 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L983" class="LineNr"> 983 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L984" class="LineNr"> 984 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L985" class="LineNr"> 985 </span>  <span class="muComment">#</span>
+<span id="L986" class="LineNr"> 986 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L987" class="LineNr"> 987 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L988" class="LineNr"> 988 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L989" class="LineNr"> 989 </span>  <span class="muComment"># setup: screen</span>
+<span id="L990" class="LineNr"> 990 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L991" class="LineNr"> 991 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L992" class="LineNr"> 992 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L993" class="LineNr"> 993 </span>  <span class="muComment">#</span>
+<span id="L994" class="LineNr"> 994 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L995" class="LineNr"> 995 </span>  <span class="muComment">#</span>
+<span id="L996" class="LineNr"> 996 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/pre-0&quot;</span>
+<span id="L997" class="LineNr"> 997 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/pre-0/cursor&quot;</span>
+<span id="L998" class="LineNr"> 998 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/pre-1&quot;</span>
+<span id="L999" class="LineNr"> 999 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/pre-1/cursor&quot;</span>
+<span id="L1000" class="LineNr">1000 </span>  <span class="muComment"># expand</span>
+<span id="L1001" class="LineNr">1001 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1002" class="LineNr">1002 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1003" class="LineNr">1003 </span>  <span class="muComment">#</span>
+<span id="L1004" class="LineNr">1004 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/expand-0&quot;</span>
+<span id="L1005" class="LineNr">1005 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/expand-0/cursor&quot;</span>
+<span id="L1006" class="LineNr">1006 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/expand-1&quot;</span>
+<span id="L1007" class="LineNr">1007 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/expand-1/cursor&quot;</span>
+<span id="L1008" class="LineNr">1008 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/expand-2&quot;</span>
+<span id="L1009" class="LineNr">1009 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L981'>test-trace-expand-skips-lower-depth</a>/expand-2/cursor&quot;</span>
+<span id="L1010" class="LineNr">1010 </span><span class="Delimiter">}</span>
+<span id="L1011" class="LineNr">1011 </span>
+<span id="L1012" class="LineNr">1012 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a></span> <span class="Delimiter">{</span>
+<span id="L1013" class="LineNr">1013 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1014" class="LineNr">1014 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1015" class="LineNr">1015 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1016" class="LineNr">1016 </span>  <span class="muComment">#</span>
+<span id="L1017" class="LineNr">1017 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1018" class="LineNr">1018 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1019" class="LineNr">1019 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1020" class="LineNr">1020 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1021" class="LineNr">1021 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1022" class="LineNr">1022 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1023" class="LineNr">1023 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1024" class="LineNr">1024 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1025" class="LineNr">1025 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1026" class="LineNr">1026 </span>  <span class="muComment">#</span>
+<span id="L1027" class="LineNr">1027 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1028" class="LineNr">1028 </span>  <span class="muComment">#</span>
+<span id="L1029" class="LineNr">1029 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/pre-0&quot;</span>
+<span id="L1030" class="LineNr">1030 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/pre-0/cursor&quot;</span>
+<span id="L1031" class="LineNr">1031 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/pre-1&quot;</span>
+<span id="L1032" class="LineNr">1032 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/pre-1/cursor&quot;</span>
+<span id="L1033" class="LineNr">1033 </span>  <span class="muComment"># expand</span>
+<span id="L1034" class="LineNr">1034 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1035" class="LineNr">1035 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1036" class="LineNr">1036 </span>  <span class="muComment">#</span>
+<span id="L1037" class="LineNr">1037 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/expand-0&quot;</span>
+<span id="L1038" class="LineNr">1038 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/expand-0/cursor&quot;</span>
+<span id="L1039" class="LineNr">1039 </span>  <span class="muComment"># TODO: might be too wasteful to show every place where lines are hidden</span>
+<span id="L1040" class="LineNr">1040 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/expand-1&quot;</span>
+<span id="L1041" class="LineNr">1041 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/expand-1/cursor&quot;</span>
+<span id="L1042" class="LineNr">1042 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/expand-2&quot;</span>
+<span id="L1043" class="LineNr">1043 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1012'>test-trace-expand-continues-past-lower-depth</a>/expand-2/cursor&quot;</span>
+<span id="L1044" class="LineNr">1044 </span><span class="Delimiter">}</span>
+<span id="L1045" class="LineNr">1045 </span>
+<span id="L1046" class="LineNr">1046 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a></span> <span class="Delimiter">{</span>
+<span id="L1047" class="LineNr">1047 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1048" class="LineNr">1048 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1049" class="LineNr">1049 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1050" class="LineNr">1050 </span>  <span class="muComment">#</span>
+<span id="L1051" class="LineNr">1051 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1052" class="LineNr">1052 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1053" class="LineNr">1053 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1.1&quot;</span>
+<span id="L1054" class="LineNr">1054 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1055" class="LineNr">1055 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.2&quot;</span>
+<span id="L1056" class="LineNr">1056 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1057" class="LineNr">1057 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1058" class="LineNr">1058 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1059" class="LineNr">1059 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2.1&quot;</span>
+<span id="L1060" class="LineNr">1060 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1061" class="LineNr">1061 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1062" class="LineNr">1062 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1063" class="LineNr">1063 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">8</span>/height
+<span id="L1064" class="LineNr">1064 </span>  <span class="muComment">#</span>
+<span id="L1065" class="LineNr">1065 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1066" class="LineNr">1066 </span>  <span class="muComment">#</span>
+<span id="L1067" class="LineNr">1067 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/pre-0&quot;</span>
+<span id="L1068" class="LineNr">1068 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/pre-0/cursor&quot;</span>
+<span id="L1069" class="LineNr">1069 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/pre-1&quot;</span>
+<span id="L1070" class="LineNr">1070 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/pre-1/cursor&quot;</span>
+<span id="L1071" class="LineNr">1071 </span>  <span class="muComment"># expand</span>
+<span id="L1072" class="LineNr">1072 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1073" class="LineNr">1073 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1074" class="LineNr">1074 </span>  <span class="muComment">#</span>
+<span id="L1075" class="LineNr">1075 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-0&quot;</span>
+<span id="L1076" class="LineNr">1076 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-0/cursor&quot;</span>
+<span id="L1077" class="LineNr">1077 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-1&quot;</span>
+<span id="L1078" class="LineNr">1078 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-1/cursor&quot;</span>
+<span id="L1079" class="LineNr">1079 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 1.2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-2&quot;</span>
+<span id="L1080" class="LineNr">1080 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-2/cursor&quot;</span>
+<span id="L1081" class="LineNr">1081 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-3&quot;</span>
+<span id="L1082" class="LineNr">1082 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-3/cursor&quot;</span>
+<span id="L1083" class="LineNr">1083 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-4&quot;</span>
+<span id="L1084" class="LineNr">1084 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1046'>test-trace-expand-stops-at-higher-depth</a>/expand-4/cursor&quot;</span>
+<span id="L1085" class="LineNr">1085 </span><span class="Delimiter">}</span>
+<span id="L1086" class="LineNr">1086 </span>
+<span id="L1087" class="LineNr">1087 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1087'>test-trace-expand-twice</a></span> <span class="Delimiter">{</span>
+<span id="L1088" class="LineNr">1088 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1089" class="LineNr">1089 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1090" class="LineNr">1090 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1091" class="LineNr">1091 </span>  <span class="muComment">#</span>
+<span id="L1092" class="LineNr">1092 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1093" class="LineNr">1093 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1094" class="LineNr">1094 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1095" class="LineNr">1095 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1096" class="LineNr">1096 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1097" class="LineNr">1097 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1098" class="LineNr">1098 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1099" class="LineNr">1099 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1100" class="LineNr">1100 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1101" class="LineNr">1101 </span>  <span class="muComment">#</span>
+<span id="L1102" class="LineNr">1102 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1103" class="LineNr">1103 </span>  <span class="muComment">#</span>
+<span id="L1104" class="LineNr">1104 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/pre-0&quot;</span>
+<span id="L1105" class="LineNr">1105 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/pre-0/cursor&quot;</span>
+<span id="L1106" class="LineNr">1106 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/pre-1&quot;</span>
+<span id="L1107" class="LineNr">1107 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/pre-1/cursor&quot;</span>
+<span id="L1108" class="LineNr">1108 </span>  <span class="muComment"># expand</span>
+<span id="L1109" class="LineNr">1109 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1110" class="LineNr">1110 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1111" class="LineNr">1111 </span>  <span class="muComment">#</span>
+<span id="L1112" class="LineNr">1112 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand-0&quot;</span>
+<span id="L1113" class="LineNr">1113 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand-0/cursor&quot;</span>
+<span id="L1114" class="LineNr">1114 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand-1&quot;</span>
+<span id="L1115" class="LineNr">1115 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand-1/cursor&quot;</span>
+<span id="L1116" class="LineNr">1116 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand-2&quot;</span>
+<span id="L1117" class="LineNr">1117 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand-2/cursor&quot;</span>
+<span id="L1118" class="LineNr">1118 </span>  <span class="muComment"># cursor down</span>
+<span id="L1119" class="LineNr">1119 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1120" class="LineNr">1120 </span>  <span class="muComment"># hack: we need to render here to make this test pass; we're mixing state management with rendering</span>
+<span id="L1121" class="LineNr">1121 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1122" class="LineNr">1122 </span>  <span class="muComment">#</span>
+<span id="L1123" class="LineNr">1123 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/down-0&quot;</span>
+<span id="L1124" class="LineNr">1124 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/down-0/cursor&quot;</span>
+<span id="L1125" class="LineNr">1125 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/down-1&quot;</span>
+<span id="L1126" class="LineNr">1126 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/down-1/cursor&quot;</span>
+<span id="L1127" class="LineNr">1127 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/down-2&quot;</span>
+<span id="L1128" class="LineNr">1128 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/down-2/cursor&quot;</span>
+<span id="L1129" class="LineNr">1129 </span>  <span class="muComment"># expand again</span>
+<span id="L1130" class="LineNr">1130 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1131" class="LineNr">1131 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1132" class="LineNr">1132 </span>  <span class="muComment">#</span>
+<span id="L1133" class="LineNr">1133 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand2-0&quot;</span>
+<span id="L1134" class="LineNr">1134 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand2-0/cursor&quot;</span>
+<span id="L1135" class="LineNr">1135 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 1.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand2-1&quot;</span>
+<span id="L1136" class="LineNr">1136 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand2-1/cursor&quot;</span>
+<span id="L1137" class="LineNr">1137 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand2-2&quot;</span>
+<span id="L1138" class="LineNr">1138 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1087'>test-trace-expand-twice</a>/expand2-2/cursor&quot;</span>
+<span id="L1139" class="LineNr">1139 </span><span class="Delimiter">}</span>
+<span id="L1140" class="LineNr">1140 </span>
+<span id="L1141" class="LineNr">1141 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a></span> <span class="Delimiter">{</span>
+<span id="L1142" class="LineNr">1142 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1143" class="LineNr">1143 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1144" class="LineNr">1144 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1145" class="LineNr">1145 </span>  <span class="muComment">#</span>
+<span id="L1146" class="LineNr">1146 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1147" class="LineNr">1147 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1148" class="LineNr">1148 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L1149" class="LineNr">1149 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1150" class="LineNr">1150 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1151" class="LineNr">1151 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1152" class="LineNr">1152 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1153" class="LineNr">1153 </span>  <span class="muComment">#</span>
+<span id="L1154" class="LineNr">1154 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1155" class="LineNr">1155 </span>  <span class="muComment">#</span>
+<span id="L1156" class="LineNr">1156 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/pre-0&quot;</span>
+<span id="L1157" class="LineNr">1157 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/pre-0/cursor&quot;</span>
+<span id="L1158" class="LineNr">1158 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/pre-1&quot;</span>
+<span id="L1159" class="LineNr">1159 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/pre-1/cursor&quot;</span>
+<span id="L1160" class="LineNr">1160 </span>  <span class="muComment"># expand</span>
+<span id="L1161" class="LineNr">1161 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1162" class="LineNr">1162 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1163" class="LineNr">1163 </span>  <span class="muComment">#</span>
+<span id="L1164" class="LineNr">1164 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/expand-0&quot;</span>
+<span id="L1165" class="LineNr">1165 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/expand-0/cursor&quot;</span>
+<span id="L1166" class="LineNr">1166 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/expand-1&quot;</span>
+<span id="L1167" class="LineNr">1167 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/expand-1/cursor&quot;</span>
+<span id="L1168" class="LineNr">1168 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/expand-2&quot;</span>
+<span id="L1169" class="LineNr">1169 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/expand-2/cursor&quot;</span>
+<span id="L1170" class="LineNr">1170 </span>  <span class="muComment"># cursor down</span>
+<span id="L1171" class="LineNr">1171 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1172" class="LineNr">1172 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1173" class="LineNr">1173 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1174" class="LineNr">1174 </span>  <span class="muComment">#</span>
+<span id="L1175" class="LineNr">1175 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/down-0&quot;</span>
+<span id="L1176" class="LineNr">1176 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/down-0/cursor&quot;</span>
+<span id="L1177" class="LineNr">1177 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/down-1&quot;</span>
+<span id="L1178" class="LineNr">1178 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/down-1/cursor&quot;</span>
+<span id="L1179" class="LineNr">1179 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/down-2&quot;</span>
+<span id="L1180" class="LineNr">1180 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/down-2/cursor&quot;</span>
+<span id="L1181" class="LineNr">1181 </span>  <span class="muComment"># recreate trace</span>
+<span id="L1182" class="LineNr">1182 </span>  <a href='trace.mu.html#L45'>clear-trace</a> t
+<span id="L1183" class="LineNr">1183 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1184" class="LineNr">1184 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1185" class="LineNr">1185 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L1186" class="LineNr">1186 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1187" class="LineNr">1187 </span>  <span class="muComment"># cursor remains unchanged</span>
+<span id="L1188" class="LineNr">1188 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/refresh-0&quot;</span>
+<span id="L1189" class="LineNr">1189 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/refresh-0/cursor&quot;</span>
+<span id="L1190" class="LineNr">1190 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/refresh-1&quot;</span>
+<span id="L1191" class="LineNr">1191 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/refresh-1/cursor&quot;</span>
+<span id="L1192" class="LineNr">1192 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/refresh-2&quot;</span>
+<span id="L1193" class="LineNr">1193 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1141'>test-trace-refresh-cursor</a>/refresh-2/cursor&quot;</span>
+<span id="L1194" class="LineNr">1194 </span><span class="Delimiter">}</span>
+<span id="L1195" class="LineNr">1195 </span>
+<span id="L1196" class="LineNr">1196 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a></span> <span class="Delimiter">{</span>
+<span id="L1197" class="LineNr">1197 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1198" class="LineNr">1198 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1199" class="LineNr">1199 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1200" class="LineNr">1200 </span>  <span class="muComment">#</span>
+<span id="L1201" class="LineNr">1201 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1202" class="LineNr">1202 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1203" class="LineNr">1203 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L1204" class="LineNr">1204 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1205" class="LineNr">1205 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1206" class="LineNr">1206 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1207" class="LineNr">1207 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1208" class="LineNr">1208 </span>  <span class="muComment">#</span>
+<span id="L1209" class="LineNr">1209 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1210" class="LineNr">1210 </span>  <span class="muComment">#</span>
+<span id="L1211" class="LineNr">1211 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/pre-0&quot;</span>
+<span id="L1212" class="LineNr">1212 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/pre-0/cursor&quot;</span>
+<span id="L1213" class="LineNr">1213 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/pre-1&quot;</span>
+<span id="L1214" class="LineNr">1214 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/pre-1/cursor&quot;</span>
+<span id="L1215" class="LineNr">1215 </span>  <span class="muComment"># expand</span>
+<span id="L1216" class="LineNr">1216 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1217" class="LineNr">1217 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1218" class="LineNr">1218 </span>  <span class="muComment">#</span>
+<span id="L1219" class="LineNr">1219 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/expand-0&quot;</span>
+<span id="L1220" class="LineNr">1220 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/expand-0/cursor&quot;</span>
+<span id="L1221" class="LineNr">1221 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/expand-1&quot;</span>
+<span id="L1222" class="LineNr">1222 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/expand-1/cursor&quot;</span>
+<span id="L1223" class="LineNr">1223 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/expand-2&quot;</span>
+<span id="L1224" class="LineNr">1224 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;              &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/expand-2/cursor&quot;</span>
+<span id="L1225" class="LineNr">1225 </span>  <span class="muComment"># cursor down</span>
+<span id="L1226" class="LineNr">1226 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1227" class="LineNr">1227 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1228" class="LineNr">1228 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1229" class="LineNr">1229 </span>  <span class="muComment">#</span>
+<span id="L1230" class="LineNr">1230 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/down-0&quot;</span>
+<span id="L1231" class="LineNr">1231 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/down-0/cursor&quot;</span>
+<span id="L1232" class="LineNr">1232 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/down-1&quot;</span>
+<span id="L1233" class="LineNr">1233 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/down-1/cursor&quot;</span>
+<span id="L1234" class="LineNr">1234 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/down-2&quot;</span>
+<span id="L1235" class="LineNr">1235 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/down-2/cursor&quot;</span>
+<span id="L1236" class="LineNr">1236 </span>  <span class="muComment"># recreate trace with slightly different lines</span>
+<span id="L1237" class="LineNr">1237 </span>  <a href='trace.mu.html#L45'>clear-trace</a> t
+<span id="L1238" class="LineNr">1238 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 4&quot;</span>
+<span id="L1239" class="LineNr">1239 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 5&quot;</span>
+<span id="L1240" class="LineNr">1240 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>  <span class="muComment"># cursor line is unchanged</span>
+<span id="L1241" class="LineNr">1241 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1242" class="LineNr">1242 </span>  <span class="muComment"># cursor remains unchanged</span>
+<span id="L1243" class="LineNr">1243 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 4   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/refresh-0&quot;</span>
+<span id="L1244" class="LineNr">1244 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/refresh-0/cursor&quot;</span>
+<span id="L1245" class="LineNr">1245 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 5   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/refresh-1&quot;</span>
+<span id="L1246" class="LineNr">1246 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/refresh-1/cursor&quot;</span>
+<span id="L1247" class="LineNr">1247 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/refresh-2&quot;</span>
+<span id="L1248" class="LineNr">1248 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1196'>test-trace-preserve-cursor-on-refresh</a>/refresh-2/cursor&quot;</span>
+<span id="L1249" class="LineNr">1249 </span><span class="Delimiter">}</span>
+<span id="L1250" class="LineNr">1250 </span>
+<span id="L1251" class="LineNr">1251 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a></span> <span class="Delimiter">{</span>
+<span id="L1252" class="LineNr">1252 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1253" class="LineNr">1253 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1254" class="LineNr">1254 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1255" class="LineNr">1255 </span>  <span class="muComment">#</span>
+<span id="L1256" class="LineNr">1256 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1257" class="LineNr">1257 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1258" class="LineNr">1258 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 3&quot;</span>
+<span id="L1259" class="LineNr">1259 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1260" class="LineNr">1260 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1261" class="LineNr">1261 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1262" class="LineNr">1262 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1263" class="LineNr">1263 </span>  <span class="muComment">#</span>
+<span id="L1264" class="LineNr">1264 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1265" class="LineNr">1265 </span>  <span class="muComment">#</span>
+<span id="L1266" class="LineNr">1266 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/pre-0&quot;</span>
+<span id="L1267" class="LineNr">1267 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/pre-0/cursor&quot;</span>
+<span id="L1268" class="LineNr">1268 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/pre-1&quot;</span>
+<span id="L1269" class="LineNr">1269 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/pre-1/cursor&quot;</span>
+<span id="L1270" class="LineNr">1270 </span>  <span class="muComment"># expand</span>
+<span id="L1271" class="LineNr">1271 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1272" class="LineNr">1272 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1273" class="LineNr">1273 </span>  <span class="muComment">#</span>
+<span id="L1274" class="LineNr">1274 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/expand-0&quot;</span>
+<span id="L1275" class="LineNr">1275 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/expand-0/cursor&quot;</span>
+<span id="L1276" class="LineNr">1276 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/expand-1&quot;</span>
+<span id="L1277" class="LineNr">1277 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/expand-1/cursor&quot;</span>
+<span id="L1278" class="LineNr">1278 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/expand-2&quot;</span>
+<span id="L1279" class="LineNr">1279 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;              &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/expand-2/cursor&quot;</span>
+<span id="L1280" class="LineNr">1280 </span>  <span class="muComment"># cursor down</span>
+<span id="L1281" class="LineNr">1281 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1282" class="LineNr">1282 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1283" class="LineNr">1283 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1284" class="LineNr">1284 </span>  <span class="muComment">#</span>
+<span id="L1285" class="LineNr">1285 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/down-0&quot;</span>
+<span id="L1286" class="LineNr">1286 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/down-0/cursor&quot;</span>
+<span id="L1287" class="LineNr">1287 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/down-1&quot;</span>
+<span id="L1288" class="LineNr">1288 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/down-1/cursor&quot;</span>
+<span id="L1289" class="LineNr">1289 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/down-2&quot;</span>
+<span id="L1290" class="LineNr">1290 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/down-2/cursor&quot;</span>
+<span id="L1291" class="LineNr">1291 </span>  <span class="muComment"># recreate trace with entirely different lines</span>
+<span id="L1292" class="LineNr">1292 </span>  <a href='trace.mu.html#L45'>clear-trace</a> t
+<span id="L1293" class="LineNr">1293 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 4&quot;</span>
+<span id="L1294" class="LineNr">1294 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 5&quot;</span>
+<span id="L1295" class="LineNr">1295 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 6&quot;</span>
+<span id="L1296" class="LineNr">1296 </span>  <a href='trace.mu.html#L295'>mark-lines-dirty</a> t
+<span id="L1297" class="LineNr">1297 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1298" class="LineNr">1298 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1299" class="LineNr">1299 </span>  <span class="muComment"># trace collapses, and cursor bumps up</span>
+<span id="L1300" class="LineNr">1300 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-0&quot;</span>
+<span id="L1301" class="LineNr">1301 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-0/cursor&quot;</span>
+<span id="L1302" class="LineNr">1302 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-1&quot;</span>
+<span id="L1303" class="LineNr">1303 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-1/cursor&quot;</span>
+<span id="L1304" class="LineNr">1304 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-2&quot;</span>
+<span id="L1305" class="LineNr">1305 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1251'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-2/cursor&quot;</span>
+<span id="L1306" class="LineNr">1306 </span><span class="Delimiter">}</span>
+<span id="L1307" class="LineNr">1307 </span>
+<span id="L1308" class="LineNr">1308 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a></span> <span class="Delimiter">{</span>
+<span id="L1309" class="LineNr">1309 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1310" class="LineNr">1310 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1311" class="LineNr">1311 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1312" class="LineNr">1312 </span>  <span class="muComment">#</span>
+<span id="L1313" class="LineNr">1313 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1314" class="LineNr">1314 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1315" class="LineNr">1315 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1316" class="LineNr">1316 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1317" class="LineNr">1317 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1318" class="LineNr">1318 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1319" class="LineNr">1319 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1320" class="LineNr">1320 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1321" class="LineNr">1321 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1322" class="LineNr">1322 </span>  <span class="muComment">#</span>
+<span id="L1323" class="LineNr">1323 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1324" class="LineNr">1324 </span>  <span class="muComment">#</span>
+<span id="L1325" class="LineNr">1325 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/pre-0&quot;</span>
+<span id="L1326" class="LineNr">1326 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/pre-0/cursor&quot;</span>
+<span id="L1327" class="LineNr">1327 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/pre-1&quot;</span>
+<span id="L1328" class="LineNr">1328 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/pre-1/cursor&quot;</span>
+<span id="L1329" class="LineNr">1329 </span>  <span class="muComment"># expand</span>
+<span id="L1330" class="LineNr">1330 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1331" class="LineNr">1331 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1332" class="LineNr">1332 </span>  <span class="muComment">#</span>
+<span id="L1333" class="LineNr">1333 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/expand-0&quot;</span>
+<span id="L1334" class="LineNr">1334 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/expand-0/cursor&quot;</span>
+<span id="L1335" class="LineNr">1335 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/expand-1&quot;</span>
+<span id="L1336" class="LineNr">1336 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/expand-1/cursor&quot;</span>
+<span id="L1337" class="LineNr">1337 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/expand-2&quot;</span>
+<span id="L1338" class="LineNr">1338 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/expand-2/cursor&quot;</span>
+<span id="L1339" class="LineNr">1339 </span>  <span class="muComment"># collapse</span>
+<span id="L1340" class="LineNr">1340 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">8</span>/backspace
+<span id="L1341" class="LineNr">1341 </span>  <span class="muComment"># hack: we need to render here to make this test pass; we're mixing state management with rendering</span>
+<span id="L1342" class="LineNr">1342 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1343" class="LineNr">1343 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1344" class="LineNr">1344 </span>  <span class="muComment">#</span>
+<span id="L1345" class="LineNr">1345 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/post-0/y&quot;</span>
+<span id="L1346" class="LineNr">1346 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/post-0&quot;</span>
+<span id="L1347" class="LineNr">1347 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/post-0/cursor&quot;</span>
+<span id="L1348" class="LineNr">1348 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/post-1&quot;</span>
+<span id="L1349" class="LineNr">1349 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1308'>test-trace-collapse-at-top</a>/post-1/cursor&quot;</span>
+<span id="L1350" class="LineNr">1350 </span><span class="Delimiter">}</span>
+<span id="L1351" class="LineNr">1351 </span>
+<span id="L1352" class="LineNr">1352 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1352'>test-trace-collapse</a></span> <span class="Delimiter">{</span>
+<span id="L1353" class="LineNr">1353 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1354" class="LineNr">1354 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1355" class="LineNr">1355 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1356" class="LineNr">1356 </span>  <span class="muComment">#</span>
+<span id="L1357" class="LineNr">1357 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1358" class="LineNr">1358 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1359" class="LineNr">1359 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1360" class="LineNr">1360 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1361" class="LineNr">1361 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1362" class="LineNr">1362 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1363" class="LineNr">1363 </span>  <span class="muComment">#</span>
+<span id="L1364" class="LineNr">1364 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1365" class="LineNr">1365 </span>  <span class="muComment">#</span>
+<span id="L1366" class="LineNr">1366 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/pre-0&quot;</span>
+<span id="L1367" class="LineNr">1367 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/pre-0/cursor&quot;</span>
+<span id="L1368" class="LineNr">1368 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/pre-1&quot;</span>
+<span id="L1369" class="LineNr">1369 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/pre-1/cursor&quot;</span>
+<span id="L1370" class="LineNr">1370 </span>  <span class="muComment"># expand</span>
+<span id="L1371" class="LineNr">1371 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1372" class="LineNr">1372 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1373" class="LineNr">1373 </span>  <span class="muComment">#</span>
+<span id="L1374" class="LineNr">1374 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/expand-0&quot;</span>
+<span id="L1375" class="LineNr">1375 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/expand-0/cursor&quot;</span>
+<span id="L1376" class="LineNr">1376 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/expand-1&quot;</span>
+<span id="L1377" class="LineNr">1377 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/expand-1/cursor&quot;</span>
+<span id="L1378" class="LineNr">1378 </span>  <span class="muComment"># cursor down</span>
+<span id="L1379" class="LineNr">1379 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1380" class="LineNr">1380 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1381" class="LineNr">1381 </span>  <span class="muComment"># collapse</span>
+<span id="L1382" class="LineNr">1382 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">8</span>/backspace
+<span id="L1383" class="LineNr">1383 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1384" class="LineNr">1384 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1385" class="LineNr">1385 </span>  <span class="muComment">#</span>
+<span id="L1386" class="LineNr">1386 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/post-0/y&quot;</span>
+<span id="L1387" class="LineNr">1387 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/post-0&quot;</span>
+<span id="L1388" class="LineNr">1388 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/post-0/cursor&quot;</span>
+<span id="L1389" class="LineNr">1389 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/post-1&quot;</span>
+<span id="L1390" class="LineNr">1390 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1352'>test-trace-collapse</a>/post-1/cursor&quot;</span>
+<span id="L1391" class="LineNr">1391 </span><span class="Delimiter">}</span>
+<span id="L1392" class="LineNr">1392 </span>
+<span id="L1393" class="LineNr">1393 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a></span> <span class="Delimiter">{</span>
+<span id="L1394" class="LineNr">1394 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1395" class="LineNr">1395 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1396" class="LineNr">1396 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1397" class="LineNr">1397 </span>  <span class="muComment">#</span>
+<span id="L1398" class="LineNr">1398 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1399" class="LineNr">1399 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1400" class="LineNr">1400 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1401" class="LineNr">1401 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1402" class="LineNr">1402 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1403" class="LineNr">1403 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1404" class="LineNr">1404 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1405" class="LineNr">1405 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1406" class="LineNr">1406 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1407" class="LineNr">1407 </span>  <span class="muComment">#</span>
+<span id="L1408" class="LineNr">1408 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1409" class="LineNr">1409 </span>  <span class="muComment">#</span>
+<span id="L1410" class="LineNr">1410 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/pre-0&quot;</span>
+<span id="L1411" class="LineNr">1411 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/pre-0/cursor&quot;</span>
+<span id="L1412" class="LineNr">1412 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/pre-1&quot;</span>
+<span id="L1413" class="LineNr">1413 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/pre-1/cursor&quot;</span>
+<span id="L1414" class="LineNr">1414 </span>  <span class="muComment"># expand</span>
+<span id="L1415" class="LineNr">1415 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1416" class="LineNr">1416 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1417" class="LineNr">1417 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
+<span id="L1418" class="LineNr">1418 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/expand-0&quot;</span>
+<span id="L1419" class="LineNr">1419 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/expand-0/cursor&quot;</span>
+<span id="L1420" class="LineNr">1420 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/expand-1&quot;</span>
+<span id="L1421" class="LineNr">1421 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/expand-1/cursor&quot;</span>
+<span id="L1422" class="LineNr">1422 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/expand-2&quot;</span>
+<span id="L1423" class="LineNr">1423 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/expand-2/cursor&quot;</span>
+<span id="L1424" class="LineNr">1424 </span>  <span class="muComment"># cursor down to second visible line</span>
+<span id="L1425" class="LineNr">1425 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1426" class="LineNr">1426 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1427" class="LineNr">1427 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1428" class="LineNr">1428 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1429" class="LineNr">1429 </span>  <span class="muComment"># collapse</span>
+<span id="L1430" class="LineNr">1430 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">8</span>/backspace
+<span id="L1431" class="LineNr">1431 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1432" class="LineNr">1432 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1433" class="LineNr">1433 </span>  <span class="muComment">#</span>
+<span id="L1434" class="LineNr">1434 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/post-0/y&quot;</span>
+<span id="L1435" class="LineNr">1435 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get t, cursor-y
+<span id="L1436" class="LineNr">1436 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *cursor-y, <span class="Constant">0</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/post-0/cursor-y&quot;</span>
+<span id="L1437" class="LineNr">1437 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/post-0&quot;</span>
+<span id="L1438" class="LineNr">1438 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/post-0/cursor&quot;</span>
+<span id="L1439" class="LineNr">1439 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/post-1&quot;</span>
+<span id="L1440" class="LineNr">1440 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1393'>test-trace-collapse-skips-invisible-lines</a>/post-1/cursor&quot;</span>
+<span id="L1441" class="LineNr">1441 </span><span class="Delimiter">}</span>
+<span id="L1442" class="LineNr">1442 </span>
+<span id="L1443" class="LineNr">1443 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a></span> <span class="Delimiter">{</span>
+<span id="L1444" class="LineNr">1444 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1445" class="LineNr">1445 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1446" class="LineNr">1446 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1447" class="LineNr">1447 </span>  <span class="muComment">#</span>
+<span id="L1448" class="LineNr">1448 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1449" class="LineNr">1449 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1450" class="LineNr">1450 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1451" class="LineNr">1451 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1452" class="LineNr">1452 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1453" class="LineNr">1453 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1454" class="LineNr">1454 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1455" class="LineNr">1455 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1456" class="LineNr">1456 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height
+<span id="L1457" class="LineNr">1457 </span>  <span class="muComment">#</span>
+<span id="L1458" class="LineNr">1458 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1459" class="LineNr">1459 </span>  <span class="muComment">#</span>
+<span id="L1460" class="LineNr">1460 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/pre-0&quot;</span>
+<span id="L1461" class="LineNr">1461 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/pre-0/cursor&quot;</span>
+<span id="L1462" class="LineNr">1462 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/pre-1&quot;</span>
+<span id="L1463" class="LineNr">1463 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/pre-1/cursor&quot;</span>
+<span id="L1464" class="LineNr">1464 </span>  <span class="muComment"># expand</span>
+<span id="L1465" class="LineNr">1465 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1466" class="LineNr">1466 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1467" class="LineNr">1467 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
+<span id="L1468" class="LineNr">1468 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand-0&quot;</span>
+<span id="L1469" class="LineNr">1469 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand-0/cursor&quot;</span>
+<span id="L1470" class="LineNr">1470 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand-1&quot;</span>
+<span id="L1471" class="LineNr">1471 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand-1/cursor&quot;</span>
+<span id="L1472" class="LineNr">1472 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand-2&quot;</span>
+<span id="L1473" class="LineNr">1473 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand-2/cursor&quot;</span>
+<span id="L1474" class="LineNr">1474 </span>  <span class="muComment"># cursor down to ellipses</span>
+<span id="L1475" class="LineNr">1475 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1476" class="LineNr">1476 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1477" class="LineNr">1477 </span>  <span class="muComment"># expand</span>
+<span id="L1478" class="LineNr">1478 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1479" class="LineNr">1479 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1480" class="LineNr">1480 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
+<span id="L1481" class="LineNr">1481 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand2-0&quot;</span>
+<span id="L1482" class="LineNr">1482 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand2-0/cursor&quot;</span>
+<span id="L1483" class="LineNr">1483 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 1.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand2-1&quot;</span>
+<span id="L1484" class="LineNr">1484 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand2-1/cursor&quot;</span>
+<span id="L1485" class="LineNr">1485 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand2-2&quot;</span>
+<span id="L1486" class="LineNr">1486 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/expand2-2/cursor&quot;</span>
+<span id="L1487" class="LineNr">1487 </span>  <span class="muComment"># cursor down to second visible line</span>
+<span id="L1488" class="LineNr">1488 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1489" class="LineNr">1489 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1490" class="LineNr">1490 </span>  <span class="muComment"># collapse</span>
+<span id="L1491" class="LineNr">1491 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">8</span>/backspace
+<span id="L1492" class="LineNr">1492 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1493" class="LineNr">1493 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1494" class="LineNr">1494 </span>  <span class="muComment">#</span>
+<span id="L1495" class="LineNr">1495 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/post-0/y&quot;</span>
+<span id="L1496" class="LineNr">1496 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get t, cursor-y
+<span id="L1497" class="LineNr">1497 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *cursor-y, <span class="Constant">0</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/post-0/cursor-y&quot;</span>
+<span id="L1498" class="LineNr">1498 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/post-0&quot;</span>
+<span id="L1499" class="LineNr">1499 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/post-0/cursor&quot;</span>
+<span id="L1500" class="LineNr">1500 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/post-1&quot;</span>
+<span id="L1501" class="LineNr">1501 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1443'>test-trace-collapse-two-levels</a>/post-1/cursor&quot;</span>
+<span id="L1502" class="LineNr">1502 </span><span class="Delimiter">}</span>
+<span id="L1503" class="LineNr">1503 </span>
+<span id="L1504" class="LineNr">1504 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a></span> <span class="Delimiter">{</span>
+<span id="L1505" class="LineNr">1505 </span>  <span class="PreProc">var</span> t-storage: trace
+<span id="L1506" class="LineNr">1506 </span>  <span class="PreProc">var</span> t/<span class="Constant">esi</span>: (addr trace) <span class="Special">&lt;-</span> address t-storage
+<span id="L1507" class="LineNr">1507 </span>  <a href='trace.mu.html#L35'>initialize-trace</a> t, <span class="Constant">0x10</span>, <span class="Constant">0x10</span>
+<span id="L1508" class="LineNr">1508 </span>  <span class="muComment">#</span>
+<span id="L1509" class="LineNr">1509 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
+<span id="L1510" class="LineNr">1510 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1511" class="LineNr">1511 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1.1&quot;</span>
+<span id="L1512" class="LineNr">1512 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1513" class="LineNr">1513 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2&quot;</span>
+<span id="L1514" class="LineNr">1514 </span>  <a href='trace.mu.html#L128'>trace-lower</a> t
+<span id="L1515" class="LineNr">1515 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2.1&quot;</span>
+<span id="L1516" class="LineNr">1516 </span>  <a href='trace.mu.html#L101'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 2.2&quot;</span>
+<span id="L1517" class="LineNr">1517 </span>  <a href='trace.mu.html#L136'>trace-higher</a> t
+<span id="L1518" class="LineNr">1518 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1519" class="LineNr">1519 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1520" class="LineNr">1520 </span>  <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1521" class="LineNr">1521 </span>  <a href='../500text-screen.mu.html#L23'>initialize-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">8</span>/height
+<span id="L1522" class="LineNr">1522 </span>  <span class="muComment">#</span>
+<span id="L1523" class="LineNr">1523 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1524" class="LineNr">1524 </span>  <span class="muComment">#</span>
+<span id="L1525" class="LineNr">1525 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/pre-0&quot;</span>
+<span id="L1526" class="LineNr">1526 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/pre-0/cursor&quot;</span>
+<span id="L1527" class="LineNr">1527 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/pre-1&quot;</span>
+<span id="L1528" class="LineNr">1528 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/pre-1/cursor&quot;</span>
+<span id="L1529" class="LineNr">1529 </span>  <span class="muComment"># expand</span>
+<span id="L1530" class="LineNr">1530 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1531" class="LineNr">1531 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1532" class="LineNr">1532 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
+<span id="L1533" class="LineNr">1533 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-0&quot;</span>
+<span id="L1534" class="LineNr">1534 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-0/cursor&quot;</span>
+<span id="L1535" class="LineNr">1535 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-1&quot;</span>
+<span id="L1536" class="LineNr">1536 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-1/cursor&quot;</span>
+<span id="L1537" class="LineNr">1537 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-2&quot;</span>
+<span id="L1538" class="LineNr">1538 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-2/cursor&quot;</span>
+<span id="L1539" class="LineNr">1539 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-3&quot;</span>
+<span id="L1540" class="LineNr">1540 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand-3/cursor&quot;</span>
+<span id="L1541" class="LineNr">1541 </span>  <span class="muComment"># cursor down to bottom</span>
+<span id="L1542" class="LineNr">1542 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1543" class="LineNr">1543 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1544" class="LineNr">1544 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1545" class="LineNr">1545 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1546" class="LineNr">1546 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
+<span id="L1547" class="LineNr">1547 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1548" class="LineNr">1548 </span>  <span class="muComment"># expand</span>
+<span id="L1549" class="LineNr">1549 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
+<span id="L1550" class="LineNr">1550 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1551" class="LineNr">1551 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
+<span id="L1552" class="LineNr">1552 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-0&quot;</span>
+<span id="L1553" class="LineNr">1553 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-0/cursor&quot;</span>
+<span id="L1554" class="LineNr">1554 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-1&quot;</span>
+<span id="L1555" class="LineNr">1555 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-1/cursor&quot;</span>
+<span id="L1556" class="LineNr">1556 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-2&quot;</span>
+<span id="L1557" class="LineNr">1557 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-2/cursor&quot;</span>
+<span id="L1558" class="LineNr">1558 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;1 line 2.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-3&quot;</span>
+<span id="L1559" class="LineNr">1559 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-3/cursor&quot;</span>
+<span id="L1560" class="LineNr">1560 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot;1 line 2.2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-4&quot;</span>
+<span id="L1561" class="LineNr">1561 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/expand2-4/cursor&quot;</span>
+<span id="L1562" class="LineNr">1562 </span>  <span class="muComment"># collapse</span>
+<span id="L1563" class="LineNr">1563 </span>  <a href='trace.mu.html#L683'>edit-trace</a> t, <span class="Constant">8</span>/backspace
+<span id="L1564" class="LineNr">1564 </span>  <a href='../500text-screen.mu.html#L194'>clear-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L1565" class="LineNr">1565 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L307'>render-trace</a> <a href='../500text-screen.mu.html#L9'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
+<span id="L1566" class="LineNr">1566 </span>  <span class="muComment">#</span>
+<span id="L1567" class="LineNr">1567 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">4</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-0/y&quot;</span>
+<span id="L1568" class="LineNr">1568 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">eax</span>: (addr int) <span class="Special">&lt;-</span> get t, cursor-y
+<span id="L1569" class="LineNr">1569 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *cursor-y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-0/cursor-y&quot;</span>
+<span id="L1570" class="LineNr">1570 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;0 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-0&quot;</span>
+<span id="L1571" class="LineNr">1571 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-0/cursor&quot;</span>
+<span id="L1572" class="LineNr">1572 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-1&quot;</span>
+<span id="L1573" class="LineNr">1573 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-1/cursor&quot;</span>
+<span id="L1574" class="LineNr">1574 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;0 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-2&quot;</span>
+<span id="L1575" class="LineNr">1575 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-2/cursor&quot;</span>
+<span id="L1576" class="LineNr">1576 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-3&quot;</span>
+<span id="L1577" class="LineNr">1577 </span>  <a href='../504test-screen.mu.html#L251'>check-background-color-in-screen-row</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1504'>test-trace-collapse-nested-level</a>/post-3/cursor&quot;</span>
+<span id="L1578" class="LineNr">1578 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
author	Kartik Agaram <vc@akkartik.com>	2021-03-23 17:31:08 -0700
committer	Kartik Agaram <vc@akkartik.com>	2021-03-23 17:31:08 -0700
commit	3350c34a74844e21ea69077e01efff3bae64bdcd (patch)
tree	fa06ba58542297d1cff6b78958d4547a40a25d21 /html/shell
parent	62a244211024a8367332541c571621883c05bcce (diff)
download	mu-3350c34a74844e21ea69077e01efff3bae64bdcd.tar.gz