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authorKartik Agaram <vc@akkartik.com>2021-04-13 21:11:26 -0700
committerKartik Agaram <vc@akkartik.com>2021-04-13 21:11:26 -0700
commit5a3f9a31850d6da72dff7211c9760cd4a8e1090b (patch)
treeda45bfbfa58a4573b6c1898006dfaf146352eb40 /html/shell/sandbox.mu.html
parentfea45ccbea6bee563b41da199fb3c456c6069cb5 (diff)
downloadmu-5a3f9a31850d6da72dff7211c9760cd4a8e1090b.tar.gz
.
Diffstat (limited to 'html/shell/sandbox.mu.html')
-rw-r--r--html/shell/sandbox.mu.html1056
1 files changed, 762 insertions, 294 deletions
diff --git a/html/shell/sandbox.mu.html b/html/shell/sandbox.mu.html
index fd5dd78b..a63bb167 100644
--- a/html/shell/sandbox.mu.html
+++ b/html/shell/sandbox.mu.html
@@ -16,7 +16,6 @@ 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; }
@@ -61,303 +60,772 @@ if ('onhashchange' in window) {
 <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="L4" class="LineNr">  4 </span>  screen-var: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L5" class="LineNr">  5 </span>  keyboard-var: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L6" class="LineNr">  6 </span>  trace: (handle trace)
+<span id="L7" class="LineNr">  7 </span>  cursor-in-data?: boolean
+<span id="L8" class="LineNr">  8 </span>  cursor-in-keyboard?: boolean
+<span id="L9" class="LineNr">  9 </span>  cursor-in-trace?: boolean
+<span id="L10" class="LineNr"> 10 </span><span class="Delimiter">}</span>
+<span id="L11" class="LineNr"> 11 </span>
+<span id="L12" class="LineNr"> 12 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L12'>initialize-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), screen-and-keyboard?: boolean <span class="Delimiter">{</span>
+<span id="L13" class="LineNr"> 13 </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="L14" class="LineNr"> 14 </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="L15" class="LineNr"> 15 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> data-ah
+<span id="L16" class="LineNr"> 16 </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="L17" class="LineNr"> 17 </span>  <a href='gap-buffer.mu.html#L11'>initialize-gap-buffer</a> data, <span class="Constant">0x1000</span>/4KB
+<span id="L18" class="LineNr"> 18 </span>  <span class="muComment">#</span>
+<span id="L19" class="LineNr"> 19 </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="L20" class="LineNr"> 20 </span>  populate-stream value-ah, <span class="Constant">0x1000</span>/4KB
+<span id="L21" class="LineNr"> 21 </span>  <span class="muComment">#</span>
+<span id="L22" class="LineNr"> 22 </span>  <span class="Delimiter">{</span>
+<span id="L23" class="LineNr"> 23 </span>    compare screen-and-keyboard?, <span class="Constant">0</span>/false
+<span id="L24" class="LineNr"> 24 </span>    <span class="PreProc">break-if-=</span>
+<span id="L25" class="LineNr"> 25 </span>    <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, screen-var
+<span id="L26" class="LineNr"> 26 </span>    <a href='cell.mu.html#L142'>new-screen</a> screen-ah, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height
+<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">var</span> keyboard-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L28" class="LineNr"> 28 </span>    <a href='cell.mu.html#L174'>new-keyboard</a> keyboard-ah, <span class="Constant">0x10</span>/keyboard-capacity
+<span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
+<span id="L30" class="LineNr"> 30 </span>  <span class="muComment">#</span>
+<span id="L31" class="LineNr"> 31 </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="L32" class="LineNr"> 32 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> trace-ah
+<span id="L33" class="LineNr"> 33 </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="L34" class="LineNr"> 34 </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="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L36" class="LineNr"> 36 </span>  copy-to *cursor-in-data?, <span class="Constant">1</span>/true
 <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="L39" class="LineNr"> 39 </span><span class="muComment">## some helpers for tests</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>
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-<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="L41" class="LineNr"> 41 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L41'>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="L42" class="LineNr"> 42 </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="L43" class="LineNr"> 43 </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="L44" class="LineNr"> 44 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> data-ah
+<span id="L45" class="LineNr"> 45 </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="L46" class="LineNr"> 46 </span>  <a href='gap-buffer.mu.html#L28'>initialize-gap-buffer-with</a> data, s
+<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span>
+<span id="L48" class="LineNr"> 48 </span>
+<span id="L49" class="LineNr"> 49 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L49'>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="L50" class="LineNr"> 50 </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="L51" class="LineNr"> 51 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> out
+<span id="L52" class="LineNr"> 52 </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="L53" class="LineNr"> 53 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> out-addr, s
+<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">}</span>
+<span id="L55" class="LineNr"> 55 </span>
+<span id="L56" class="LineNr"> 56 </span><span class="muComment">##</span>
+<span id="L57" class="LineNr"> 57 </span>
+<span id="L58" class="LineNr"> 58 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L58'>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, globals: (addr <a href='global.mu.html#L6'>global-table</a>) <span class="Delimiter">{</span>
+<span id="L59" class="LineNr"> 59 </span>  <a href='../500text-screen.mu.html#L253'>clear-rect</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, ymin, xmax, ymax, <span class="Constant">0</span>/bg=black
+<span id="L60" class="LineNr"> 60 </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="L61" class="LineNr"> 61 </span>  <span class="muComment"># data</span>
+<span id="L62" class="LineNr"> 62 </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="L63" class="LineNr"> 63 </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="L64" class="LineNr"> 64 </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="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy xmin
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L67" class="LineNr"> 67 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L118'>maybe-render-empty-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, self, xmin, y
+<span id="L68" class="LineNr"> 68 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L322'>maybe-render-keyboard</a> <a href='../500text-screen.mu.html#L9'>screen</a>, self, xmin, y
+<span id="L69" class="LineNr"> 69 </span>  <span class="PreProc">var</span> cursor-in-sandbox?/<span class="Constant">ebx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L70" class="LineNr"> 70 </span>  x, y <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L91'>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="L71" class="LineNr"> 71 </span>  y <span class="Special">&lt;-</span> increment
+<span id="L72" class="LineNr"> 72 </span>  <span class="muComment"># trace</span>
+<span id="L73" class="LineNr"> 73 </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="L74" class="LineNr"> 74 </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="L75" class="LineNr"> 75 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
+<span id="L76" class="LineNr"> 76 </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="L77" class="LineNr"> 77 </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="L78" class="LineNr"> 78 </span>  <span class="muComment"># value</span>
+<span id="L79" class="LineNr"> 79 </span>  $render-sandbox:value: <span class="Delimiter">{</span>
+<span id="L80" class="LineNr"> 80 </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="L81" class="LineNr"> 81 </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="L82" class="LineNr"> 82 </span>    <span class="PreProc">var</span> value/<span class="Constant">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _value
+<span id="L83" class="LineNr"> 83 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> value
+<span id="L84" class="LineNr"> 84 </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="L85" class="LineNr"> 85 </span>    compare done?, <span class="Constant">0</span>/false
+<span id="L86" class="LineNr"> 86 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L87" class="LineNr"> 87 </span>    <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L88" class="LineNr"> 88 </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="L89" class="LineNr"> 89 </span>    <span class="PreProc">var</span> x2/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy x
+<span id="L90" class="LineNr"> 90 </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="L91" class="LineNr"> 91 </span>  <span class="Delimiter">}</span>
+<span id="L92" class="LineNr"> 92 </span>  y <span class="Special">&lt;-</span> add <span class="Constant">2</span>  <span class="muComment"># padding</span>
+<span id="L93" class="LineNr"> 93 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L142'>maybe-render-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, self, xmin, y
+<span id="L94" class="LineNr"> 94 </span>  <span class="muComment"># render menu</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L96" class="LineNr"> 96 </span>  compare *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L97" class="LineNr"> 97 </span>  <span class="Delimiter">{</span>
+<span id="L98" class="LineNr"> 98 </span>    <span class="PreProc">break-if-=</span>
+<span id="L99" class="LineNr"> 99 </span>    <a href='sandbox.mu.html#L409'>render-sandbox-menu</a> <a href='../500text-screen.mu.html#L9'>screen</a>, self
+<span id="L100" class="LineNr">100 </span>    <span class="PreProc">return</span>
+<span id="L101" class="LineNr">101 </span>  <span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </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="L103" class="LineNr">103 </span>  compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L104" class="LineNr">104 </span>  <span class="Delimiter">{</span>
+<span id="L105" class="LineNr">105 </span>    <span class="PreProc">break-if-=</span>
+<span id="L106" class="LineNr">106 </span>    <a href='trace.mu.html#L662'>render-trace-menu</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L107" class="LineNr">107 </span>    <span class="PreProc">return</span>
+<span id="L108" class="LineNr">108 </span>  <span class="Delimiter">}</span>
+<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> cursor-in-keyboard?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L110" class="LineNr">110 </span>  compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
 <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>
+<span id="L112" class="LineNr">112 </span>    <span class="PreProc">break-if-=</span>
+<span id="L113" class="LineNr">113 </span>    <a href='sandbox.mu.html#L437'>render-keyboard-menu</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<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="Delimiter">}</span>
+<span id="L117" class="LineNr">117 </span>
+<span id="L118" class="LineNr">118 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L118'>maybe-render-empty-screen</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<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L119" class="LineNr">119 </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="L120" class="LineNr">120 </span>  <span class="PreProc">var</span> screen-obj-cell-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, screen-var
+<span id="L121" class="LineNr">121 </span>  <span class="PreProc">var</span> screen-obj-cell/<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> *screen-obj-cell-ah
+<span id="L122" class="LineNr">122 </span>  compare screen-obj-cell, <span class="Constant">0</span>
+<span id="L123" class="LineNr">123 </span>  <span class="Delimiter">{</span>
+<span id="L124" class="LineNr">124 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L125" class="LineNr">125 </span>    <span class="PreProc">return</span> ymin
+<span id="L126" class="LineNr">126 </span>  <span class="Delimiter">}</span>
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> screen-obj-cell-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get screen-obj-cell, <span class="PreProc">type</span>
+<span id="L128" class="LineNr">128 </span>  compare *screen-obj-cell-type, <span class="Constant">5</span>/screen
+<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> ymin  <span class="muComment"># silently give up on rendering the screen</span>
+<span id="L132" class="LineNr">132 </span>  <span class="Delimiter">}</span>
+<span id="L133" class="LineNr">133 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L134" class="LineNr">134 </span>  <span class="PreProc">var</span> screen-obj-ah/<span class="Constant">eax</span>: (addr handle <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> get screen-obj-cell, screen-data
+<span id="L135" class="LineNr">135 </span>  <span class="PreProc">var</span> _screen-obj/<span class="Constant">eax</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *screen-obj-ah
+<span id="L136" class="LineNr">136 </span>  <span class="PreProc">var</span> screen-obj/<span class="Constant">edx</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> copy _screen-obj
+<span id="L137" class="LineNr">137 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;screen:   &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, y, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L138" class="LineNr">138 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L172'>render-empty-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, screen-obj, x, y
+<span id="L139" class="LineNr">139 </span>  <span class="PreProc">return</span> y
+<span id="L140" class="LineNr">140 </span><span class="Delimiter">}</span>
+<span id="L141" class="LineNr">141 </span>
+<span id="L142" class="LineNr">142 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L142'>maybe-render-screen</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<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L143" class="LineNr">143 </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="L144" class="LineNr">144 </span>  <span class="PreProc">var</span> screen-obj-cell-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, screen-var
+<span id="L145" class="LineNr">145 </span>  <span class="PreProc">var</span> screen-obj-cell/<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> *screen-obj-cell-ah
+<span id="L146" class="LineNr">146 </span>  compare screen-obj-cell, <span class="Constant">0</span>
+<span id="L147" class="LineNr">147 </span>  <span class="Delimiter">{</span>
+<span id="L148" class="LineNr">148 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L149" class="LineNr">149 </span>    <span class="PreProc">return</span> ymin
+<span id="L150" class="LineNr">150 </span>  <span class="Delimiter">}</span>
+<span id="L151" class="LineNr">151 </span>  <span class="PreProc">var</span> screen-obj-cell-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get screen-obj-cell, <span class="PreProc">type</span>
+<span id="L152" class="LineNr">152 </span>  compare *screen-obj-cell-type, <span class="Constant">5</span>/screen
+<span id="L153" class="LineNr">153 </span>  <span class="Delimiter">{</span>
+<span id="L154" class="LineNr">154 </span>    <span class="PreProc">break-if-=</span>
+<span id="L155" class="LineNr">155 </span>    <span class="PreProc">return</span> ymin  <span class="muComment"># silently give up on rendering the screen</span>
+<span id="L156" class="LineNr">156 </span>  <span class="Delimiter">}</span>
+<span id="L157" class="LineNr">157 </span>  <span class="PreProc">var</span> screen-obj-ah/<span class="Constant">eax</span>: (addr handle <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> get screen-obj-cell, screen-data
+<span id="L158" class="LineNr">158 </span>  <span class="PreProc">var</span> _screen-obj/<span class="Constant">eax</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *screen-obj-ah
+<span id="L159" class="LineNr">159 </span>  <span class="PreProc">var</span> screen-obj/<span class="Constant">edx</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> copy _screen-obj
+<span id="L160" class="LineNr">160 </span>  <span class="Delimiter">{</span>
+<span id="L161" class="LineNr">161 </span>    <span class="PreProc">var</span> screen-empty?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L224'>fake-screen-empty?</a> screen-obj
+<span id="L162" class="LineNr">162 </span>    compare screen-empty?, <span class="Constant">0</span>/false
+<span id="L163" class="LineNr">163 </span>    <span class="PreProc">break-if-=</span>
+<span id="L164" class="LineNr">164 </span>    <span class="PreProc">return</span> ymin
+<span id="L165" class="LineNr">165 </span>  <span class="Delimiter">}</span>
+<span id="L166" class="LineNr">166 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;screen:   &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, ymin, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L167" class="LineNr">167 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L168" class="LineNr">168 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L234'>render-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, screen-obj, x, y
+<span id="L169" class="LineNr">169 </span>  <span class="PreProc">return</span> y
+<span id="L170" class="LineNr">170 </span><span class="Delimiter">}</span>
+<span id="L171" class="LineNr">171 </span>
+<span id="L172" class="LineNr">172 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L172'>render-empty-screen</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _target-screen: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), xmin: int, ymin: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L173" class="LineNr">173 </span>  <span class="PreProc">var</span> target-screen/<span class="Constant">esi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> copy _target-screen
+<span id="L174" class="LineNr">174 </span>  <span class="PreProc">var</span> screen-y/<span class="Constant">edi</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L175" class="LineNr">175 </span>  <span class="muComment"># top border</span>
+<span id="L176" class="LineNr">176 </span>  <span class="Delimiter">{</span>
+<span id="L177" class="LineNr">177 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, screen-y
+<span id="L178" class="LineNr">178 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L179" class="LineNr">179 </span>    <span class="PreProc">var</span> width/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L180" class="LineNr">180 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L181" class="LineNr">181 </span>    <span class="Delimiter">{</span>
+<span id="L182" class="LineNr">182 </span>      compare x, *width
+<span id="L183" class="LineNr">183 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L184" class="LineNr">184 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/horizontal-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L185" class="LineNr">185 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L186" class="LineNr">186 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L187" class="LineNr">187 </span>      <span class="PreProc">loop</span>
+<span id="L188" class="LineNr">188 </span>    <span class="Delimiter">}</span>
+<span id="L189" class="LineNr">189 </span>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L190" class="LineNr">190 </span>  <span class="Delimiter">}</span>
+<span id="L191" class="LineNr">191 </span>  <span class="muComment"># screen</span>
+<span id="L192" class="LineNr">192 </span>  <span class="PreProc">var</span> height/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, height
+<span id="L193" class="LineNr">193 </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="L194" class="LineNr">194 </span>  <span class="Delimiter">{</span>
+<span id="L195" class="LineNr">195 </span>    compare y, *height
+<span id="L196" class="LineNr">196 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L197" class="LineNr">197 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, screen-y
+<span id="L198" class="LineNr">198 </span>    <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x7c</span>/vertical-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L199" class="LineNr">199 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L200" class="LineNr">200 </span>    <span class="PreProc">var</span> width/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L201" class="LineNr">201 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L202" class="LineNr">202 </span>    <span class="Delimiter">{</span>
+<span id="L203" class="LineNr">203 </span>      compare x, *width
+<span id="L204" class="LineNr">204 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L205" class="LineNr">205 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>/space, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L206" class="LineNr">206 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L207" class="LineNr">207 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L208" class="LineNr">208 </span>      <span class="PreProc">loop</span>
+<span id="L209" class="LineNr">209 </span>    <span class="Delimiter">}</span>
+<span id="L210" class="LineNr">210 </span>    <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x7c</span>/vertical-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L211" class="LineNr">211 </span>    y <span class="Special">&lt;-</span> increment
+<span id="L212" class="LineNr">212 </span>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L213" class="LineNr">213 </span>    <span class="PreProc">loop</span>
+<span id="L214" class="LineNr">214 </span>  <span class="Delimiter">}</span>
+<span id="L215" class="LineNr">215 </span>  <span class="muComment"># bottom border</span>
+<span id="L216" class="LineNr">216 </span>  <span class="Delimiter">{</span>
+<span id="L217" class="LineNr">217 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, screen-y
+<span id="L218" class="LineNr">218 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L219" class="LineNr">219 </span>    <span class="PreProc">var</span> width/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L220" class="LineNr">220 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L221" class="LineNr">221 </span>    <span class="Delimiter">{</span>
+<span id="L222" class="LineNr">222 </span>      compare x, *width
+<span id="L223" class="LineNr">223 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L224" class="LineNr">224 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/horizontal-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L225" class="LineNr">225 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L226" class="LineNr">226 </span>      x <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>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L230" class="LineNr">230 </span>  <span class="Delimiter">}</span>
+<span id="L231" class="LineNr">231 </span>  <span class="PreProc">return</span> screen-y
+<span id="L232" class="LineNr">232 </span><span class="Delimiter">}</span>
+<span id="L233" class="LineNr">233 </span>
+<span id="L234" class="LineNr">234 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L234'>render-screen</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _target-screen: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), xmin: int, ymin: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L235" class="LineNr">235 </span>  <span class="PreProc">var</span> target-screen/<span class="Constant">esi</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> copy _target-screen
+<span id="L236" class="LineNr">236 </span>  <span class="PreProc">var</span> screen-y/<span class="Constant">edi</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L237" class="LineNr">237 </span>  <span class="muComment"># top border</span>
+<span id="L238" class="LineNr">238 </span>  <span class="Delimiter">{</span>
+<span id="L239" class="LineNr">239 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, screen-y
+<span id="L240" class="LineNr">240 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L241" class="LineNr">241 </span>    <span class="PreProc">var</span> width/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L242" class="LineNr">242 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L243" class="LineNr">243 </span>    <span class="Delimiter">{</span>
+<span id="L244" class="LineNr">244 </span>      compare x, *width
+<span id="L245" class="LineNr">245 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L246" class="LineNr">246 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/horizontal-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L247" class="LineNr">247 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L248" class="LineNr">248 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L249" class="LineNr">249 </span>      <span class="PreProc">loop</span>
+<span id="L250" class="LineNr">250 </span>    <span class="Delimiter">}</span>
+<span id="L251" class="LineNr">251 </span>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L252" class="LineNr">252 </span>  <span class="Delimiter">}</span>
+<span id="L253" class="LineNr">253 </span>  <span class="muComment"># screen</span>
+<span id="L254" class="LineNr">254 </span>  <span class="PreProc">var</span> height/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, height
+<span id="L255" class="LineNr">255 </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="L256" class="LineNr">256 </span>  <span class="Delimiter">{</span>
+<span id="L257" class="LineNr">257 </span>    compare y, *height
+<span id="L258" class="LineNr">258 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L259" class="LineNr">259 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, screen-y
+<span id="L260" class="LineNr">260 </span>    <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x7c</span>/vertical-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L261" class="LineNr">261 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L262" class="LineNr">262 </span>    <span class="PreProc">var</span> width/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L263" class="LineNr">263 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L264" class="LineNr">264 </span>    <span class="Delimiter">{</span>
+<span id="L265" class="LineNr">265 </span>      compare x, *width
+<span id="L266" class="LineNr">266 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L267" class="LineNr">267 </span>      <a href='sandbox.mu.html#L396'>print-screen-cell-of-fake-screen</a> <a href='../500text-screen.mu.html#L9'>screen</a>, target-screen, x, y
+<span id="L268" class="LineNr">268 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L269" class="LineNr">269 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L270" class="LineNr">270 </span>      <span class="PreProc">loop</span>
+<span id="L271" class="LineNr">271 </span>    <span class="Delimiter">}</span>
+<span id="L272" class="LineNr">272 </span>    <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x7c</span>/vertical-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L273" class="LineNr">273 </span>    y <span class="Special">&lt;-</span> increment
+<span id="L274" class="LineNr">274 </span>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L275" class="LineNr">275 </span>    <span class="PreProc">loop</span>
+<span id="L276" class="LineNr">276 </span>  <span class="Delimiter">}</span>
+<span id="L277" class="LineNr">277 </span>  <span class="muComment"># bottom border</span>
+<span id="L278" class="LineNr">278 </span>  <span class="Delimiter">{</span>
+<span id="L279" class="LineNr">279 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, screen-y
+<span id="L280" class="LineNr">280 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L281" class="LineNr">281 </span>    <span class="PreProc">var</span> width/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L282" class="LineNr">282 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L283" class="LineNr">283 </span>    <span class="Delimiter">{</span>
+<span id="L284" class="LineNr">284 </span>      compare x, *width
+<span id="L285" class="LineNr">285 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L286" class="LineNr">286 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/horizontal-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L287" class="LineNr">287 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L288" class="LineNr">288 </span>      x <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>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L292" class="LineNr">292 </span>  <span class="Delimiter">}</span>
+<span id="L293" class="LineNr">293 </span>  <span class="PreProc">return</span> screen-y
+<span id="L294" class="LineNr">294 </span><span class="Delimiter">}</span>
+<span id="L295" class="LineNr">295 </span>
+<span id="L296" class="LineNr">296 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L296'>has-keyboard?</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L297" class="LineNr">297 </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="L298" class="LineNr">298 </span>  <span class="PreProc">var</span> keyboard-obj-cell-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L299" class="LineNr">299 </span>  <span class="PreProc">var</span> keyboard-obj-cell/<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> *keyboard-obj-cell-ah
+<span id="L300" class="LineNr">300 </span>  compare keyboard-obj-cell, <span class="Constant">0</span>
+<span id="L301" class="LineNr">301 </span>  <span class="Delimiter">{</span>
+<span id="L302" class="LineNr">302 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L303" class="LineNr">303 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L304" class="LineNr">304 </span>  <span class="Delimiter">}</span>
+<span id="L305" class="LineNr">305 </span>  <span class="PreProc">var</span> keyboard-obj-cell-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-obj-cell, <span class="PreProc">type</span>
+<span id="L306" class="LineNr">306 </span>  compare *keyboard-obj-cell-type, <span class="Constant">6</span>/keyboard
+<span id="L307" class="LineNr">307 </span>  <span class="Delimiter">{</span>
+<span id="L308" class="LineNr">308 </span>    <span class="PreProc">break-if-=</span>
+<span id="L309" class="LineNr">309 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L310" class="LineNr">310 </span>  <span class="Delimiter">}</span>
+<span id="L311" class="LineNr">311 </span>  <span class="PreProc">var</span> keyboard-obj-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-obj-cell, keyboard-data
+<span id="L312" class="LineNr">312 </span>  <span class="PreProc">var</span> _keyboard-obj/<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> *keyboard-obj-ah
+<span id="L313" class="LineNr">313 </span>  <span class="PreProc">var</span> keyboard-obj/<span class="Constant">edx</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard-obj
+<span id="L314" class="LineNr">314 </span>  compare keyboard-obj, <span class="Constant">0</span>
+<span id="L315" class="LineNr">315 </span>  <span class="Delimiter">{</span>
+<span id="L316" class="LineNr">316 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L317" class="LineNr">317 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L318" class="LineNr">318 </span>  <span class="Delimiter">}</span>
+<span id="L319" class="LineNr">319 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L320" class="LineNr">320 </span><span class="Delimiter">}</span>
+<span id="L321" class="LineNr">321 </span>
+<span id="L322" class="LineNr">322 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L322'>maybe-render-keyboard</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<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L323" class="LineNr">323 </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="L324" class="LineNr">324 </span>  <span class="PreProc">var</span> keyboard-obj-cell-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L325" class="LineNr">325 </span>  <span class="PreProc">var</span> keyboard-obj-cell/<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> *keyboard-obj-cell-ah
+<span id="L326" class="LineNr">326 </span>  compare keyboard-obj-cell, <span class="Constant">0</span>
+<span id="L327" class="LineNr">327 </span>  <span class="Delimiter">{</span>
+<span id="L328" class="LineNr">328 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L329" class="LineNr">329 </span>    <span class="PreProc">return</span> ymin
+<span id="L330" class="LineNr">330 </span>  <span class="Delimiter">}</span>
+<span id="L331" class="LineNr">331 </span>  <span class="PreProc">var</span> keyboard-obj-cell-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-obj-cell, <span class="PreProc">type</span>
+<span id="L332" class="LineNr">332 </span>  compare *keyboard-obj-cell-type, <span class="Constant">6</span>/keyboard
+<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> ymin  <span class="muComment"># silently give up on rendering the keyboard</span>
+<span id="L336" class="LineNr">336 </span>  <span class="Delimiter">}</span>
+<span id="L337" class="LineNr">337 </span>  <span class="PreProc">var</span> keyboard-obj-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-obj-cell, keyboard-data
+<span id="L338" class="LineNr">338 </span>  <span class="PreProc">var</span> _keyboard-obj/<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> *keyboard-obj-ah
+<span id="L339" class="LineNr">339 </span>  <span class="PreProc">var</span> keyboard-obj/<span class="Constant">edx</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard-obj
+<span id="L340" class="LineNr">340 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;keyboard: &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, ymin, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L341" class="LineNr">341 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L342" class="LineNr">342 </span>  <span class="PreProc">var</span> cursor-in-keyboard?/<span class="Constant">esi</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L343" class="LineNr">343 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L349'>render-keyboard</a> <a href='../500text-screen.mu.html#L9'>screen</a>, keyboard-obj, x, y, *cursor-in-keyboard?
+<span id="L344" class="LineNr">344 </span>  y <span class="Special">&lt;-</span> increment  <span class="muComment"># padding</span>
+<span id="L345" class="LineNr">345 </span>  <span class="PreProc">return</span> y
+<span id="L346" class="LineNr">346 </span><span class="Delimiter">}</span>
+<span id="L347" class="LineNr">347 </span>
+<span id="L348" class="LineNr">348 </span><span class="muComment"># draw an evocative shape</span>
+<span id="L349" class="LineNr">349 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L349'>render-keyboard</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _keyboard: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), xmin: int, ymin: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L350" class="LineNr">350 </span>  <span class="PreProc">var</span> keyboard/<span class="Constant">esi</span>: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard
+<span id="L351" class="LineNr">351 </span>  <span class="PreProc">var</span> width/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0x10</span>/keyboard-capacity
+<span id="L352" class="LineNr">352 </span>  <span class="PreProc">var</span> y/<span class="Constant">edi</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L353" class="LineNr">353 </span>  <span class="muComment"># top border</span>
+<span id="L354" class="LineNr">354 </span>  <span class="Delimiter">{</span>
+<span id="L355" class="LineNr">355 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, y
+<span id="L356" class="LineNr">356 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L357" class="LineNr">357 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L358" class="LineNr">358 </span>    <span class="Delimiter">{</span>
+<span id="L359" class="LineNr">359 </span>      compare x, width
+<span id="L360" class="LineNr">360 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L361" class="LineNr">361 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/horizontal-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L362" class="LineNr">362 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L363" class="LineNr">363 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L364" class="LineNr">364 </span>      <span class="PreProc">loop</span>
+<span id="L365" class="LineNr">365 </span>    <span class="Delimiter">}</span>
+<span id="L366" class="LineNr">366 </span>    y <span class="Special">&lt;-</span> increment
+<span id="L367" class="LineNr">367 </span>  <span class="Delimiter">}</span>
+<span id="L368" class="LineNr">368 </span>  <span class="muComment"># keyboard</span>
+<span id="L369" class="LineNr">369 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy xmin
+<span id="L370" class="LineNr">370 </span>  <a href='../500text-screen.mu.html#L94'>draw-code-point</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x7c</span>/vertical-bar, x, y, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L371" class="LineNr">371 </span>  x <span class="Special">&lt;-</span> increment
+<span id="L372" class="LineNr">372 </span>  x <span class="Special">&lt;-</span> <a href='gap-buffer.mu.html#L119'>render-gap-buffer</a> <a href='../500text-screen.mu.html#L9'>screen</a>, keyboard, x, y, render-cursor?
+<span id="L373" class="LineNr">373 </span>  x <span class="Special">&lt;-</span> copy xmin
+<span id="L374" class="LineNr">374 </span>  x <span class="Special">&lt;-</span> add <span class="Constant">1</span>  <span class="muComment"># for left bar</span>
+<span id="L375" class="LineNr">375 </span>  x <span class="Special">&lt;-</span> add <span class="Constant">0x10</span>/keyboard-capacity
+<span id="L376" class="LineNr">376 </span>  <a href='../500text-screen.mu.html#L94'>draw-code-point</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x7c</span>/vertical-bar, x, y, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L377" class="LineNr">377 </span>  y <span class="Special">&lt;-</span> increment
+<span id="L378" class="LineNr">378 </span>  <span class="muComment"># bottom border</span>
+<span id="L379" class="LineNr">379 </span>  <span class="Delimiter">{</span>
+<span id="L380" class="LineNr">380 </span>    <a href='../500text-screen.mu.html#L133'>set-cursor-position</a> <a href='../500text-screen.mu.html#L9'>screen</a>, xmin, y
+<span id="L381" class="LineNr">381 </span>    <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L382" class="LineNr">382 </span>    <span class="PreProc">var</span> x/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L383" class="LineNr">383 </span>    <span class="Delimiter">{</span>
+<span id="L384" class="LineNr">384 </span>      compare x, width
+<span id="L385" class="LineNr">385 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L386" class="LineNr">386 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/horizontal-bar, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L387" class="LineNr">387 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L388" class="LineNr">388 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L389" class="LineNr">389 </span>      <span class="PreProc">loop</span>
+<span id="L390" class="LineNr">390 </span>    <span class="Delimiter">}</span>
+<span id="L391" class="LineNr">391 </span>    y <span class="Special">&lt;-</span> increment
+<span id="L392" class="LineNr">392 </span>  <span class="Delimiter">}</span>
+<span id="L393" class="LineNr">393 </span>  <span class="PreProc">return</span> y
+<span id="L394" class="LineNr">394 </span><span class="Delimiter">}</span>
+<span id="L395" class="LineNr">395 </span>
+<span id="L396" class="LineNr">396 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L396'>print-screen-cell-of-fake-screen</a></span> <a href='../500text-screen.mu.html#L9'>screen</a>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), _target: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), x: int, y: int <span class="Delimiter">{</span>
+<span id="L397" class="LineNr">397 </span>  <span class="PreProc">var</span> target/<span class="Constant">ecx</span>: (addr <a href='../500text-screen.mu.html#L9'>screen</a>) <span class="Special">&lt;-</span> copy _target
+<span id="L398" class="LineNr">398 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='../500text-screen.mu.html#L17'>screen-cell</a>) <span class="Special">&lt;-</span> get target, data
+<span id="L399" class="LineNr">399 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='../500text-screen.mu.html#L17'>screen-cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L400" class="LineNr">400 </span>  <span class="PreProc">var</span> index/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> <a href='../500text-screen.mu.html#L100'>screen-cell-index</a> target, x, y
+<span id="L401" class="LineNr">401 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='../500text-screen.mu.html#L17'>screen-cell</a>) <span class="Special">&lt;-</span> compute-offset data, index
+<span id="L402" class="LineNr">402 </span>  <span class="PreProc">var</span> src-cell/<span class="Constant">esi</span>: (addr <a href='../500text-screen.mu.html#L17'>screen-cell</a>) <span class="Special">&lt;-</span> index data, offset
+<span id="L403" class="LineNr">403 </span>  <span class="PreProc">var</span> src-grapheme/<span class="Constant">eax</span>: (addr grapheme) <span class="Special">&lt;-</span> get src-cell, data
+<span id="L404" class="LineNr">404 </span>  <span class="PreProc">var</span> src-color/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get src-cell, color
+<span id="L405" class="LineNr">405 </span>  <span class="PreProc">var</span> src-background-color/<span class="Constant">edx</span>: (addr int) <span class="Special">&lt;-</span> get src-cell, background-color
+<span id="L406" class="LineNr">406 </span>  <a href='../501draw-text.mu.html#L84'>draw-grapheme-at-cursor</a> <a href='../500text-screen.mu.html#L9'>screen</a>, *src-grapheme, *src-color, *src-background-color
+<span id="L407" class="LineNr">407 </span><span class="Delimiter">}</span>
+<span id="L408" class="LineNr">408 </span>
+<span id="L409" class="LineNr">409 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L409'>render-sandbox-menu</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>) <span class="Delimiter">{</span>
+<span id="L410" class="LineNr">410 </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="L411" class="LineNr">411 </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="L412" class="LineNr">412 </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="L413" class="LineNr">413 </span>  <span class="PreProc">var</span> width/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy _width
+<span id="L414" class="LineNr">414 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy height
+<span id="L415" class="LineNr">415 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L416" class="LineNr">416 </span>  <span class="PreProc">var</span> height/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> copy y
+<span id="L417" class="LineNr">417 </span>  height <span class="Special">&lt;-</span> increment
+<span id="L418" class="LineNr">418 </span>  <a href='../500text-screen.mu.html#L253'>clear-rect</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0</span>/bg=black
+<span id="L419" class="LineNr">419 </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="L420" class="LineNr">420 </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="L421" class="LineNr">421 </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#L600'>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="L422" class="LineNr">422 </span>  $render-sandbox-menu:render-tab: <span class="Delimiter">{</span>
+<span id="L423" class="LineNr">423 </span>    <span class="PreProc">var</span> self/<span class="Constant">eax</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L424" class="LineNr">424 </span>    <span class="PreProc">var</span> <a href='sandbox.mu.html#L752'>has-trace?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L752'>has-trace?</a> self
+<span id="L425" class="LineNr">425 </span>    compare <a href='sandbox.mu.html#L752'>has-trace?</a>, <span class="Constant">0</span>/false
+<span id="L426" class="LineNr">426 </span>    <span class="Delimiter">{</span>
+<span id="L427" class="LineNr">427 </span>      <span class="PreProc">break-if-=</span>
+<span id="L428" class="LineNr">428 </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="L429" class="LineNr">429 </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="L430" class="LineNr">430 </span>      <span class="PreProc">break</span> $render-sandbox-menu:render-tab
+<span id="L431" class="LineNr">431 </span>    <span class="Delimiter">}</span>
+<span id="L432" class="LineNr">432 </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">0x18</span>/bg=keyboard
+<span id="L433" class="LineNr">433 </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 keyboard  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L434" class="LineNr">434 </span>  <span class="Delimiter">}</span>
+<span id="L435" class="LineNr">435 </span><span class="Delimiter">}</span>
+<span id="L436" class="LineNr">436 </span>
+<span id="L437" class="LineNr">437 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L437'>render-keyboard-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="L438" class="LineNr">438 </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="L439" class="LineNr">439 </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="L440" class="LineNr">440 </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="L441" class="LineNr">441 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy height
+<span id="L442" class="LineNr">442 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L443" class="LineNr">443 </span>  <span class="PreProc">var</span> height/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy y
+<span id="L444" class="LineNr">444 </span>  height <span class="Special">&lt;-</span> increment
+<span id="L445" class="LineNr">445 </span>  <a href='../500text-screen.mu.html#L253'>clear-rect</a> <a href='../500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0</span>/bg=black
+<span id="L446" class="LineNr">446 </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="L447" class="LineNr">447 </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="L448" class="LineNr">448 </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#L600'>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="L449" class="LineNr">449 </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="L450" class="LineNr">450 </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="L451" class="LineNr">451 </span><span class="Delimiter">}</span>
+<span id="L452" class="LineNr">452 </span>
+<span id="L453" class="LineNr">453 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L453'>edit-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), key: byte, globals: (addr <a href='global.mu.html#L6'>global-table</a>), real-screen: (addr <a href='../500text-screen.mu.html#L9'>screen</a>), real-keyboard: (addr keyboard), data-disk: (addr disk) <span class="Delimiter">{</span>
+<span id="L454" class="LineNr">454 </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="L455" class="LineNr">455 </span>  <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="Special">&lt;-</span> copy key
+<span id="L456" class="LineNr">456 </span>  <span class="muComment"># ctrl-r</span>
+<span id="L457" class="LineNr">457 </span>  <span class="Delimiter">{</span>
+<span id="L458" class="LineNr">458 </span>    compare g, <span class="Constant">0x12</span>/ctrl-r
+<span id="L459" class="LineNr">459 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L460" class="LineNr">460 </span>    <span class="muComment"># run function outside sandbox</span>
+<span id="L461" class="LineNr">461 </span>    <span class="muComment"># required: fn (addr screen), (addr keyboard)</span>
+<span id="L462" class="LineNr">462 </span>    <span class="muComment"># Mu will pass in the real screen and keyboard.</span>
+<span id="L463" class="LineNr">463 </span>    <span class="PreProc">return</span>
+<span id="L464" class="LineNr">464 </span>  <span class="Delimiter">}</span>
+<span id="L465" class="LineNr">465 </span>  <span class="muComment"># ctrl-s</span>
+<span id="L466" class="LineNr">466 </span>  <span class="Delimiter">{</span>
+<span id="L467" class="LineNr">467 </span>    compare g, <span class="Constant">0x13</span>/ctrl-s
+<span id="L468" class="LineNr">468 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L469" class="LineNr">469 </span>    <span class="muComment"># save to disk</span>
+<span id="L470" class="LineNr">470 </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="L471" class="LineNr">471 </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="L472" class="LineNr">472 </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="L473" class="LineNr">473 </span>    <span class="Delimiter">{</span>
+<span id="L474" class="LineNr">474 </span>      compare data-disk, <span class="Constant">0</span>/no-disk
+<span id="L475" class="LineNr">475 </span>      <span class="PreProc">break-if-=</span>
+<span id="L476" class="LineNr">476 </span>      <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x200</span>)
+<span id="L477" class="LineNr">477 </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="L478" class="LineNr">478 </span>      <a href='gap-buffer.mu.html#L43'>emit-gap-buffer</a> data, stream
+<span id="L479" class="LineNr">479 </span>      <a href='../boot.subx.html#L959'>store-sector</a> data-disk, <span class="Constant">0</span>/lba, stream
+<span id="L480" class="LineNr">480 </span>    <span class="Delimiter">}</span>
+<span id="L481" class="LineNr">481 </span>    <span class="muComment"># run sandbox</span>
+<span id="L482" class="LineNr">482 </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="L483" class="LineNr">483 </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="L484" class="LineNr">484 </span>    <span class="PreProc">var</span> value/<span class="Constant">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _value
+<span id="L485" class="LineNr">485 </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="L486" class="LineNr">486 </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="L487" class="LineNr">487 </span>    <span class="PreProc">var</span> trace/<span class="Constant">ebx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
+<span id="L488" class="LineNr">488 </span>    <a href='trace.mu.html#L45'>clear-trace</a> trace
+<span id="L489" class="LineNr">489 </span>    <span class="PreProc">var</span> <a href='../500text-screen.mu.html#L17'>screen-cell</a>/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, screen-var
+<span id="L490" class="LineNr">490 </span>    <a href='cell.mu.html#L151'>clear-screen-cell</a> <a href='../500text-screen.mu.html#L17'>screen-cell</a>
+<span id="L491" class="LineNr">491 </span>    <span class="PreProc">var</span> keyboard-cell/<span class="Constant">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L492" class="LineNr">492 </span>    <a href='cell.mu.html#L183'>rewind-keyboard-cell</a> keyboard-cell  <span class="muComment"># don't clear keys from before</span>
+<span id="L493" class="LineNr">493 </span>    <a href='sandbox.mu.html#L600'>run</a> data, value, globals, trace, <a href='../500text-screen.mu.html#L17'>screen-cell</a>, keyboard-cell
+<span id="L494" class="LineNr">494 </span>    <span class="PreProc">return</span>
+<span id="L495" class="LineNr">495 </span>  <span class="Delimiter">}</span>
+<span id="L496" class="LineNr">496 </span>  <span class="muComment"># tab</span>
+<span id="L497" class="LineNr">497 </span>  <span class="Delimiter">{</span>
+<span id="L498" class="LineNr">498 </span>    compare g, <span class="Constant">9</span>/tab
+<span id="L499" class="LineNr">499 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L500" class="LineNr">500 </span>    <span class="muComment"># if cursor in data, switch to trace or fall through to keyboard</span>
+<span id="L501" class="LineNr">501 </span>    <span class="Delimiter">{</span>
+<span id="L502" class="LineNr">502 </span>      <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L503" class="LineNr">503 </span>      compare *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L504" class="LineNr">504 </span>      <span class="PreProc">break-if-=</span>
+<span id="L505" class="LineNr">505 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L752'>has-trace?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L752'>has-trace?</a> self
+<span id="L506" class="LineNr">506 </span>      compare <a href='sandbox.mu.html#L752'>has-trace?</a>, <span class="Constant">0</span>/false
+<span id="L507" class="LineNr">507 </span>      <span class="Delimiter">{</span>
+<span id="L508" class="LineNr">508 </span>        <span class="PreProc">break-if-=</span>
+<span id="L509" class="LineNr">509 </span>        <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L510" class="LineNr">510 </span>        copy-to *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L511" class="LineNr">511 </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="L512" class="LineNr">512 </span>        copy-to *cursor-in-trace?, <span class="Constant">1</span>/false
+<span id="L513" class="LineNr">513 </span>        <span class="PreProc">return</span>
+<span id="L514" class="LineNr">514 </span>      <span class="Delimiter">}</span>
+<span id="L515" class="LineNr">515 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L296'>has-keyboard?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L296'>has-keyboard?</a> self
+<span id="L516" class="LineNr">516 </span>      compare <a href='sandbox.mu.html#L296'>has-keyboard?</a>, <span class="Constant">0</span>/false
+<span id="L517" class="LineNr">517 </span>      <span class="Delimiter">{</span>
+<span id="L518" class="LineNr">518 </span>        <span class="PreProc">break-if-=</span>
+<span id="L519" class="LineNr">519 </span>        <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L520" class="LineNr">520 </span>        copy-to *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L521" class="LineNr">521 </span>        <span class="PreProc">var</span> cursor-in-keyboard?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L522" class="LineNr">522 </span>        copy-to *cursor-in-keyboard?, <span class="Constant">1</span>/false
+<span id="L523" class="LineNr">523 </span>        <span class="PreProc">return</span>
+<span id="L524" class="LineNr">524 </span>      <span class="Delimiter">}</span>
+<span id="L525" class="LineNr">525 </span>      <span class="PreProc">return</span>
+<span id="L526" class="LineNr">526 </span>    <span class="Delimiter">}</span>
+<span id="L527" class="LineNr">527 </span>    <span class="muComment"># if cursor in trace, switch to keyboard or fall through to data</span>
+<span id="L528" class="LineNr">528 </span>    <span class="Delimiter">{</span>
+<span id="L529" class="LineNr">529 </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="L530" class="LineNr">530 </span>      compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L531" class="LineNr">531 </span>      <span class="PreProc">break-if-=</span>
+<span id="L532" class="LineNr">532 </span>      copy-to *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L533" class="LineNr">533 </span>      <span class="PreProc">var</span> cursor-target/<span class="Constant">ecx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L534" class="LineNr">534 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L296'>has-keyboard?</a>/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L296'>has-keyboard?</a> self
+<span id="L535" class="LineNr">535 </span>      compare <a href='sandbox.mu.html#L296'>has-keyboard?</a>, <span class="Constant">0</span>/false
+<span id="L536" class="LineNr">536 </span>      <span class="Delimiter">{</span>
+<span id="L537" class="LineNr">537 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L538" class="LineNr">538 </span>        cursor-target <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L539" class="LineNr">539 </span>      <span class="Delimiter">}</span>
+<span id="L540" class="LineNr">540 </span>      copy-to *cursor-target, <span class="Constant">1</span>/true
+<span id="L541" class="LineNr">541 </span>      <span class="PreProc">return</span>
+<span id="L542" class="LineNr">542 </span>    <span class="Delimiter">}</span>
+<span id="L543" class="LineNr">543 </span>    <span class="muComment"># otherwise if cursor in keyboard, switch to data</span>
+<span id="L544" class="LineNr">544 </span>    <span class="Delimiter">{</span>
+<span id="L545" class="LineNr">545 </span>      <span class="PreProc">var</span> cursor-in-keyboard?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L546" class="LineNr">546 </span>      compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
+<span id="L547" class="LineNr">547 </span>      <span class="PreProc">break-if-=</span>
+<span id="L548" class="LineNr">548 </span>      copy-to *cursor-in-keyboard?, <span class="Constant">0</span>/false
+<span id="L549" class="LineNr">549 </span>      <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L550" class="LineNr">550 </span>      copy-to *cursor-in-data?, <span class="Constant">1</span>/true
+<span id="L551" class="LineNr">551 </span>      <span class="PreProc">return</span>
+<span id="L552" class="LineNr">552 </span>    <span class="Delimiter">}</span>
+<span id="L553" class="LineNr">553 </span>    <span class="PreProc">return</span>
+<span id="L554" class="LineNr">554 </span>  <span class="Delimiter">}</span>
+<span id="L555" class="LineNr">555 </span>  <span class="muComment"># if cursor in data, send key to data</span>
+<span id="L556" class="LineNr">556 </span>  <span class="Delimiter">{</span>
+<span id="L557" class="LineNr">557 </span>    <span class="PreProc">var</span> cursor-in-data?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L558" class="LineNr">558 </span>    compare *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L559" class="LineNr">559 </span>    <span class="PreProc">break-if-=</span>
+<span id="L560" class="LineNr">560 </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="L561" class="LineNr">561 </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="L562" class="LineNr">562 </span>    <a href='gap-buffer.mu.html#L888'>edit-gap-buffer</a> data, g
+<span id="L563" class="LineNr">563 </span>    <span class="PreProc">return</span>
+<span id="L564" class="LineNr">564 </span>  <span class="Delimiter">}</span>
+<span id="L565" class="LineNr">565 </span>  <span class="muComment"># if cursor in keyboard, send key to keyboard</span>
+<span id="L566" class="LineNr">566 </span>  <span class="Delimiter">{</span>
+<span id="L567" class="LineNr">567 </span>    <span class="PreProc">var</span> cursor-in-keyboard?/<span class="Constant">eax</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L568" class="LineNr">568 </span>    compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
+<span id="L569" class="LineNr">569 </span>    <span class="PreProc">break-if-=</span>
+<span id="L570" class="LineNr">570 </span>    <span class="PreProc">var</span> keyboard-cell-ah/<span class="Constant">eax</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L571" class="LineNr">571 </span>    <span class="PreProc">var</span> keyboard-cell/<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> *keyboard-cell-ah
+<span id="L572" class="LineNr">572 </span>    compare keyboard-cell, <span class="Constant">0</span>
+<span id="L573" class="LineNr">573 </span>    <span class="Delimiter">{</span>
+<span id="L574" class="LineNr">574 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L575" class="LineNr">575 </span>      <span class="PreProc">return</span>
+<span id="L576" class="LineNr">576 </span>    <span class="Delimiter">}</span>
+<span id="L577" class="LineNr">577 </span>    <span class="PreProc">var</span> keyboard-cell-type/<span class="Constant">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-cell, <span class="PreProc">type</span>
+<span id="L578" class="LineNr">578 </span>    compare *keyboard-cell-type, <span class="Constant">6</span>/keyboard
+<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>      <span class="PreProc">return</span>
+<span id="L582" class="LineNr">582 </span>    <span class="Delimiter">}</span>
+<span id="L583" class="LineNr">583 </span>    <span class="PreProc">var</span> keyboard-ah/<span class="Constant">eax</span>: (addr handle <a href='gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-cell, keyboard-data
+<span id="L584" class="LineNr">584 </span>    <span class="PreProc">var</span> keyboard/<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> *keyboard-ah
+<span id="L585" class="LineNr">585 </span>    <a href='gap-buffer.mu.html#L888'>edit-gap-buffer</a> keyboard, g
+<span id="L586" class="LineNr">586 </span>    <span class="PreProc">return</span>
+<span id="L587" class="LineNr">587 </span>  <span class="Delimiter">}</span>
+<span id="L588" class="LineNr">588 </span>  <span class="muComment"># if cursor in trace, send key to trace</span>
+<span id="L589" class="LineNr">589 </span>  <span class="Delimiter">{</span>
+<span id="L590" class="LineNr">590 </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="L591" class="LineNr">591 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L592" class="LineNr">592 </span>    <span class="PreProc">break-if-=</span>
+<span id="L593" class="LineNr">593 </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="L594" class="LineNr">594 </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="L595" class="LineNr">595 </span>    <a href='trace.mu.html#L683'>edit-trace</a> trace, g
+<span id="L596" class="LineNr">596 </span>    <span class="PreProc">return</span>
+<span id="L597" class="LineNr">597 </span>  <span class="Delimiter">}</span>
+<span id="L598" class="LineNr">598 </span><span class="Delimiter">}</span>
+<span id="L599" class="LineNr">599 </span>
+<span id="L600" class="LineNr">600 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L600'>run</a></span> in: (addr <a href='gap-buffer.mu.html#L3'>gap-buffer</a>), out: (addr stream byte), globals: (addr <a href='global.mu.html#L6'>global-table</a>), trace: (addr trace), <a href='../500text-screen.mu.html#L17'>screen-cell</a>: (addr handle <a href='cell.mu.html#L1'>cell</a>), keyboard-cell: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
+<span id="L601" class="LineNr">601 </span>  <span class="PreProc">var</span> read-result-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L602" class="LineNr">602 </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="L603" class="LineNr">603 </span>  <a href='read.mu.html#L1'>read-cell</a> in, read-result, trace
+<span id="L604" class="LineNr">604 </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="L605" class="LineNr">605 </span>  <span class="Delimiter">{</span>
+<span id="L606" class="LineNr">606 </span>    compare error?, <span class="Constant">0</span>/false
+<span id="L607" class="LineNr">607 </span>    <span class="PreProc">break-if-=</span>
+<span id="L608" class="LineNr">608 </span>    <span class="PreProc">return</span>
+<span id="L609" class="LineNr">609 </span>  <span class="Delimiter">}</span>
+<span id="L610" class="LineNr">610 </span>  <span class="PreProc">var</span> nil-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L611" class="LineNr">611 </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="L612" class="LineNr">612 </span>  <a href='cell.mu.html#L87'>allocate-pair</a> nil-ah
+<span id="L613" class="LineNr">613 </span>  <span class="PreProc">var</span> eval-result-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L614" class="LineNr">614 </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="L615" class="LineNr">615 </span>  <a href='evaluate.mu.html#L4'>evaluate</a> read-result, eval-result, *nil-ah, globals, trace, <a href='../500text-screen.mu.html#L17'>screen-cell</a>, keyboard-cell
+<span id="L616" class="LineNr">616 </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="L617" class="LineNr">617 </span>  <span class="Delimiter">{</span>
+<span id="L618" class="LineNr">618 </span>    compare error?, <span class="Constant">0</span>/false
+<span id="L619" class="LineNr">619 </span>    <span class="PreProc">break-if-=</span>
+<span id="L620" class="LineNr">620 </span>    <span class="PreProc">return</span>
+<span id="L621" class="LineNr">621 </span>  <span class="Delimiter">}</span>
+<span id="L622" class="LineNr">622 </span>  <a href='../106stream.subx.html#L20'>clear-stream</a> out
+<span id="L623" class="LineNr">623 </span>  <a href='print.mu.html#L1'>print-cell</a> eval-result, out, trace
+<span id="L624" class="LineNr">624 </span>  <a href='trace.mu.html#L295'>mark-lines-dirty</a> trace
+<span id="L625" class="LineNr">625 </span><span class="Delimiter">}</span>
+<span id="L626" class="LineNr">626 </span>
+<span id="L627" class="LineNr">627 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L627'>test-run-integer</a></span> <span class="Delimiter">{</span>
+<span id="L628" class="LineNr">628 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L629" class="LineNr">629 </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="L630" class="LineNr">630 </span>  <a href='sandbox.mu.html#L12'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/no-screen-or-keyboard
+<span id="L631" class="LineNr">631 </span>  <span class="muComment"># type &quot;1&quot;</span>
+<span id="L632" class="LineNr">632 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L633" class="LineNr">633 </span>  <span class="muComment"># eval</span>
+<span id="L634" class="LineNr">634 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L635" class="LineNr">635 </span>  <span class="muComment"># setup: screen</span>
+<span id="L636" class="LineNr">636 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L637" class="LineNr">637 </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="L638" class="LineNr">638 </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="L639" class="LineNr">639 </span>  <span class="muComment">#</span>
+<span id="L640" class="LineNr">640 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L641" class="LineNr">641 </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#L627'>test-run-integer</a>/0&quot;</span>
+<span id="L642" class="LineNr">642 </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#L627'>test-run-integer</a>/1&quot;</span>
+<span id="L643" class="LineNr">643 </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#L627'>test-run-integer</a>/2&quot;</span>
+<span id="L644" class="LineNr">644 </span><span class="Delimiter">}</span>
+<span id="L645" class="LineNr">645 </span>
+<span id="L646" class="LineNr">646 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L646'>test-run-with-spaces</a></span> <span class="Delimiter">{</span>
+<span id="L647" class="LineNr">647 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L648" class="LineNr">648 </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="L649" class="LineNr">649 </span>  <a href='sandbox.mu.html#L12'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/no-screen-or-keyboard
+<span id="L650" class="LineNr">650 </span>  <span class="muComment"># type input with whitespace before and after</span>
+<span id="L651" class="LineNr">651 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x20</span>/space, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L652" class="LineNr">652 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L653" class="LineNr">653 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x20</span>/space, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L654" class="LineNr">654 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xa</span>/newline, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L655" class="LineNr">655 </span>  <span class="muComment"># eval</span>
+<span id="L656" class="LineNr">656 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L657" class="LineNr">657 </span>  <span class="muComment"># setup: screen</span>
+<span id="L658" class="LineNr">658 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L659" class="LineNr">659 </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="L660" class="LineNr">660 </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="L661" class="LineNr">661 </span>  <span class="muComment">#</span>
+<span id="L662" class="LineNr">662 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L663" class="LineNr">663 </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#L646'>test-run-with-spaces</a>/0&quot;</span>
+<span id="L664" class="LineNr">664 </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#L646'>test-run-with-spaces</a>/1&quot;</span>
+<span id="L665" class="LineNr">665 </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#L646'>test-run-with-spaces</a>/2&quot;</span>
+<span id="L666" class="LineNr">666 </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#L646'>test-run-with-spaces</a>/3&quot;</span>
+<span id="L667" class="LineNr">667 </span><span class="Delimiter">}</span>
+<span id="L668" class="LineNr">668 </span>
+<span id="L669" class="LineNr">669 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L669'>test-run-quote</a></span> <span class="Delimiter">{</span>
+<span id="L670" class="LineNr">670 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L671" class="LineNr">671 </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="L672" class="LineNr">672 </span>  <a href='sandbox.mu.html#L12'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/no-screen-or-keyboard
+<span id="L673" class="LineNr">673 </span>  <span class="muComment"># type &quot;'a&quot;</span>
+<span id="L674" class="LineNr">674 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x27</span>/quote, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L675" class="LineNr">675 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x61</span>/a, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L676" class="LineNr">676 </span>  <span class="muComment"># eval</span>
+<span id="L677" class="LineNr">677 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L678" class="LineNr">678 </span>  <span class="muComment"># setup: screen</span>
+<span id="L679" class="LineNr">679 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L680" class="LineNr">680 </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="L681" class="LineNr">681 </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="L682" class="LineNr">682 </span>  <span class="muComment">#</span>
+<span id="L683" class="LineNr">683 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L684" class="LineNr">684 </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;'a   &quot;</span>, <span class="Constant">&quot;F - test-run-quote/0&quot;</span>
+<span id="L685" class="LineNr">685 </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#L669'>test-run-quote</a>/1&quot;</span>
+<span id="L686" class="LineNr">686 </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; a &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L669'>test-run-quote</a>/2&quot;</span>
+<span id="L687" class="LineNr">687 </span><span class="Delimiter">}</span>
+<span id="L688" class="LineNr">688 </span>
+<span id="L689" class="LineNr">689 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L689'>test-run-error-invalid-integer</a></span> <span class="Delimiter">{</span>
+<span id="L690" class="LineNr">690 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L691" class="LineNr">691 </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="L692" class="LineNr">692 </span>  <a href='sandbox.mu.html#L12'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/no-screen-or-keyboard
+<span id="L693" class="LineNr">693 </span>  <span class="muComment"># type &quot;1a&quot;</span>
+<span id="L694" class="LineNr">694 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L695" class="LineNr">695 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x61</span>/a, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L696" class="LineNr">696 </span>  <span class="muComment"># eval</span>
+<span id="L697" class="LineNr">697 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L698" class="LineNr">698 </span>  <span class="muComment"># setup: screen</span>
+<span id="L699" class="LineNr">699 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L700" class="LineNr">700 </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="L701" class="LineNr">701 </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="L702" class="LineNr">702 </span>  <span class="muComment">#</span>
+<span id="L703" class="LineNr">703 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L704" class="LineNr">704 </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#L689'>test-run-error-invalid-integer</a>/0&quot;</span>
+<span id="L705" class="LineNr">705 </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#L689'>test-run-error-invalid-integer</a>/0&quot;</span>
+<span id="L706" class="LineNr">706 </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#L689'>test-run-error-invalid-integer</a>/2&quot;</span>
+<span id="L707" class="LineNr">707 </span><span class="Delimiter">}</span>
+<span id="L708" class="LineNr">708 </span>
+<span id="L709" class="LineNr">709 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L709'>test-run-move-cursor-into-trace</a></span> <span class="Delimiter">{</span>
+<span id="L710" class="LineNr">710 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L711" class="LineNr">711 </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="L712" class="LineNr">712 </span>  <a href='sandbox.mu.html#L12'>initialize-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0</span>/no-screen-or-keyboard
+<span id="L713" class="LineNr">713 </span>  <span class="muComment"># type &quot;12&quot;</span>
+<span id="L714" class="LineNr">714 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x31</span>/<span class="Constant">1</span>, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L715" class="LineNr">715 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x32</span>/<span class="Constant">2</span>, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L716" class="LineNr">716 </span>  <span class="muComment"># eval</span>
+<span id="L717" class="LineNr">717 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L718" class="LineNr">718 </span>  <span class="muComment"># setup: screen</span>
+<span id="L719" class="LineNr">719 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500text-screen.mu.html#L9'>screen</a>
+<span id="L720" class="LineNr">720 </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="L721" class="LineNr">721 </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="L722" class="LineNr">722 </span>  <span class="muComment">#</span>
+<span id="L723" class="LineNr">723 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L724" class="LineNr">724 </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#L709'>test-run-move-cursor-into-trace</a>/pre-0&quot;</span>
+<span id="L725" class="LineNr">725 </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#L709'>test-run-move-cursor-into-trace</a>/pre-0/cursor&quot;</span>
+<span id="L726" class="LineNr">726 </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#L709'>test-run-move-cursor-into-trace</a>/pre-1&quot;</span>
+<span id="L727" class="LineNr">727 </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#L709'>test-run-move-cursor-into-trace</a>/pre-1/cursor&quot;</span>
+<span id="L728" class="LineNr">728 </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#L709'>test-run-move-cursor-into-trace</a>/pre-2&quot;</span>
+<span id="L729" class="LineNr">729 </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#L709'>test-run-move-cursor-into-trace</a>/pre-2/cursor&quot;</span>
+<span id="L730" class="LineNr">730 </span>  <span class="muComment"># move cursor into trace</span>
+<span id="L731" class="LineNr">731 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">9</span>/tab, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L732" class="LineNr">732 </span>  <span class="muComment">#</span>
+<span id="L733" class="LineNr">733 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L734" class="LineNr">734 </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#L709'>test-run-move-cursor-into-trace</a>/trace-0&quot;</span>
+<span id="L735" class="LineNr">735 </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#L709'>test-run-move-cursor-into-trace</a>/trace-0/cursor&quot;</span>
+<span id="L736" class="LineNr">736 </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#L709'>test-run-move-cursor-into-trace</a>/trace-1&quot;</span>
+<span id="L737" class="LineNr">737 </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#L709'>test-run-move-cursor-into-trace</a>/trace-1/cursor&quot;</span>
+<span id="L738" class="LineNr">738 </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#L709'>test-run-move-cursor-into-trace</a>/trace-2&quot;</span>
+<span id="L739" class="LineNr">739 </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#L709'>test-run-move-cursor-into-trace</a>/trace-2/cursor&quot;</span>
+<span id="L740" class="LineNr">740 </span>  <span class="muComment"># move cursor into input</span>
+<span id="L741" class="LineNr">741 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">9</span>/tab, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/no-disk
+<span id="L742" class="LineNr">742 </span>  <span class="muComment">#</span>
+<span id="L743" class="LineNr">743 </span>  <a href='sandbox.mu.html#L58'>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 class="Constant">0</span>/no-globals
+<span id="L744" class="LineNr">744 </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#L709'>test-run-move-cursor-into-trace</a>/input-0&quot;</span>
+<span id="L745" class="LineNr">745 </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#L709'>test-run-move-cursor-into-trace</a>/input-0/cursor&quot;</span>
+<span id="L746" class="LineNr">746 </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#L709'>test-run-move-cursor-into-trace</a>/input-1&quot;</span>
+<span id="L747" class="LineNr">747 </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#L709'>test-run-move-cursor-into-trace</a>/input-1/cursor&quot;</span>
+<span id="L748" class="LineNr">748 </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#L709'>test-run-move-cursor-into-trace</a>/input-2&quot;</span>
+<span id="L749" class="LineNr">749 </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#L709'>test-run-move-cursor-into-trace</a>/input-2/cursor&quot;</span>
+<span id="L750" class="LineNr">750 </span><span class="Delimiter">}</span>
+<span id="L751" class="LineNr">751 </span>
+<span id="L752" class="LineNr">752 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L752'>has-trace?</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L753" class="LineNr">753 </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="L754" class="LineNr">754 </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="L755" class="LineNr">755 </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="L756" class="LineNr">756 </span>  <span class="PreProc">var</span> trace/<span class="Constant">edx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
+<span id="L757" class="LineNr">757 </span>  compare trace, <span class="Constant">0</span>
+<span id="L758" class="LineNr">758 </span>  <span class="Delimiter">{</span>
+<span id="L759" class="LineNr">759 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L760" class="LineNr">760 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L761" class="LineNr">761 </span>  <span class="Delimiter">}</span>
+<span id="L762" class="LineNr">762 </span>  <span class="PreProc">var</span> first-free/<span class="Constant">ebx</span>: (addr int) <span class="Special">&lt;-</span> get trace, first-free
+<span id="L763" class="LineNr">763 </span>  compare *first-free, <span class="Constant">0</span>
+<span id="L764" class="LineNr">764 </span>  <span class="Delimiter">{</span>
+<span id="L765" class="LineNr">765 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L766" class="LineNr">766 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L767" class="LineNr">767 </span>  <span class="Delimiter">}</span>
+<span id="L768" class="LineNr">768 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L769" class="LineNr">769 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>