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authorKartik Agaram <vc@akkartik.com>2021-08-30 09:21:52 -0700
committerKartik Agaram <vc@akkartik.com>2021-08-30 09:21:52 -0700
commit61ec86b71928afc4a7b0a9c787ba88d5b4b3040b (patch)
tree1c3da9ed40fa8bb36adb081e6dc538dfebf87afd /html/shell
parenta479f0d0837be5fec7e92ef806cc50b9c17ed50c (diff)
downloadmu-61ec86b71928afc4a7b0a9c787ba88d5b4b3040b.tar.gz
.
Diffstat (limited to 'html/shell')
-rw-r--r--html/shell/cell.mu.html4
-rw-r--r--html/shell/environment.mu.html486
-rw-r--r--html/shell/evaluate.mu.html6
-rw-r--r--html/shell/global.mu.html50
-rw-r--r--html/shell/infix.mu.html12
-rw-r--r--html/shell/macroexpand.mu.html10
-rw-r--r--html/shell/parenthesize.mu.html12
-rw-r--r--html/shell/primitives.mu.html140
-rw-r--r--html/shell/print.mu.html4
-rw-r--r--html/shell/sandbox.mu.html1869
-rw-r--r--html/shell/tokenize.mu.html42
-rw-r--r--html/shell/trace.mu.html452
12 files changed, 1543 insertions, 1544 deletions
diff --git a/html/shell/cell.mu.html b/html/shell/cell.mu.html
index 96a69e7a..a589d091 100644
--- a/html/shell/cell.mu.html
+++ b/html/shell/cell.mu.html
@@ -268,7 +268,7 @@ if ('onhashchange' in window) {
 <span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> dest-ah/eax: (addr handle <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> get out-addr, screen-data
 <span id="L209" class="LineNr">209 </span>  <a href='../120allocate.subx.html#L43'>allocate</a> dest-ah
 <span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> dest-addr/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *dest-ah
-<span id="L211" class="LineNr">211 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> dest-addr, width, height, pixel-graphics?
+<span id="L211" class="LineNr">211 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> dest-addr, width, height, pixel-graphics?
 <span id="L212" class="LineNr">212 </span><span class="Delimiter">}</span>
 <span id="L213" class="LineNr">213 </span>
 <span id="L214" class="LineNr">214 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L214'>screen?</a></span> _x: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>
@@ -292,7 +292,7 @@ if ('onhashchange' in window) {
 <span id="L232" class="LineNr">232 </span>  <span class="Delimiter">}</span>
 <span id="L233" class="LineNr">233 </span>  <span class="PreProc">var</span> screen-ah/eax: (addr handle <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> get self, screen-data
 <span id="L234" class="LineNr">234 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *screen-ah
-<span id="L235" class="LineNr">235 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L235" class="LineNr">235 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L236" class="LineNr">236 </span><span class="Delimiter">}</span>
 <span id="L237" class="LineNr">237 </span>
 <span id="L238" class="LineNr">238 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='cell.mu.html#L238'>allocate-keyboard</a></span> _out: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
diff --git a/html/shell/environment.mu.html b/html/shell/environment.mu.html
index 700e1062..64fd8d17 100644
--- a/html/shell/environment.mu.html
+++ b/html/shell/environment.mu.html
@@ -89,7 +89,7 @@ if ('onhashchange' in window) {
 <span id="L24" class="LineNr">  24 </span>  <span class="muComment"># setup: screen</span>
 <span id="L25" class="LineNr">  25 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L26" class="LineNr">  26 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L27" class="LineNr">  27 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L27" class="LineNr">  27 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L28" class="LineNr">  28 </span>  <span class="muComment"># type some code into sandbox</span>
 <span id="L29" class="LineNr">  29 </span>  <a href='environment.mu.html#L84'>type-in</a> env, <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;(+ 3 4)&quot;</span>  <span class="muComment"># we don't have any global definitions here, so no macros</span>
 <span id="L30" class="LineNr">  30 </span>  <span class="muComment"># run code in sandbox</span>
@@ -99,12 +99,12 @@ if ('onhashchange' in window) {
 <span id="L34" class="LineNr">  34 </span>  <span class="muComment"># top row blank for now</span>
 <span id="L35" class="LineNr">  35 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/0&quot;</span>
 <span id="L36" class="LineNr">  36 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                      <a href='../500fake-screen.mu.html#L14'>screen</a>:                                   &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/1&quot;</span>
-<span id="L37" class="LineNr">  37 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/2&quot;</span>
-<span id="L38" class="LineNr">  38 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/3&quot;</span>
-<span id="L39" class="LineNr">  39 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/4&quot;</span>
+<span id="L37" class="LineNr">  37 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/2&quot;</span>
+<span id="L38" class="LineNr">  38 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/3&quot;</span>
+<span id="L39" class="LineNr">  39 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/4&quot;</span>
 <span id="L40" class="LineNr">  40 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/5&quot;</span>
 <span id="L41" class="LineNr">  41 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                      keyboard:                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/6&quot;</span>
-<span id="L42" class="LineNr">  42 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                ................                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/6-2&quot;</span>
+<span id="L42" class="LineNr">  42 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                ................                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/6-2&quot;</span>
 <span id="L43" class="LineNr">  43 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/7&quot;</span>
 <span id="L44" class="LineNr">  44 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                      (+ 3 4)                                   &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/8&quot;</span>
 <span id="L45" class="LineNr">  45 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                      ...                       trace depth: 4  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L20'>test-environment</a>/9&quot;</span>
@@ -124,7 +124,7 @@ if ('onhashchange' in window) {
 <span id="L59" class="LineNr">  59 </span>  <span class="muComment"># setup: screen</span>
 <span id="L60" class="LineNr">  60 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L61" class="LineNr">  61 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L62" class="LineNr">  62 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L62" class="LineNr">  62 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L63" class="LineNr">  63 </span>  <span class="muComment"># define a global on the right (sandbox) side</span>
 <span id="L64" class="LineNr">  64 </span>  <a href='environment.mu.html#L84'>type-in</a> env, <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;(define f 42)&quot;</span>
 <span id="L65" class="LineNr">  65 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-disk
@@ -133,12 +133,12 @@ if ('onhashchange' in window) {
 <span id="L68" class="LineNr">  68 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/0&quot;</span>
 <span id="L69" class="LineNr">  69 </span>  <span class="muComment"># global definition is now on the left side</span>
 <span id="L70" class="LineNr">  70 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">1</span>/y, <span class="Constant">&quot;                                           (define f 42)                              <a href='../500fake-screen.mu.html#L14'>screen</a>:                                   &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/1&quot;</span>
-<span id="L71" class="LineNr">  71 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/2&quot;</span>
-<span id="L72" class="LineNr">  72 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/3&quot;</span>
-<span id="L73" class="LineNr">  73 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/4&quot;</span>
+<span id="L71" class="LineNr">  71 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/2&quot;</span>
+<span id="L72" class="LineNr">  72 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/3&quot;</span>
+<span id="L73" class="LineNr">  73 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                        ........                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/4&quot;</span>
 <span id="L74" class="LineNr">  74 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/4&quot;</span>
 <span id="L75" class="LineNr">  75 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                      keyboard:                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/5&quot;</span>
-<span id="L76" class="LineNr">  76 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                ................                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/5-2&quot;</span>
+<span id="L76" class="LineNr">  76 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/bg,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                ................                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/5-2&quot;</span>
 <span id="L77" class="LineNr">  77 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/6&quot;</span>
 <span id="L78" class="LineNr">  78 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,         <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L55'>test-definition-in-environment</a>/7&quot;</span>
 <span id="L79" class="LineNr">  79 </span>  <span class="muComment"># you can still see the trace on the right for what you just added to the left</span>
@@ -158,7 +158,7 @@ if ('onhashchange' in window) {
 <span id="L93" class="LineNr">  93 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> input-stream
 <span id="L94" class="LineNr">  94 </span>    compare done?, <span class="Constant">0</span>/false
 <span id="L95" class="LineNr">  95 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L96" class="LineNr">  96 </span>    <span class="PreProc">var</span> key/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> input-stream
+<span id="L96" class="LineNr">  96 </span>    <span class="PreProc">var</span> key/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> input-stream
 <span id="L97" class="LineNr">  97 </span>    <a href='environment.mu.html#L148'>edit-environment</a> self, key, <span class="Constant">0</span>/no-disk
 <span id="L98" class="LineNr">  98 </span>    <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self
 <span id="L99" class="LineNr">  99 </span>    <span class="PreProc">loop</span>
@@ -246,8 +246,8 @@ if ('onhashchange' in window) {
 <span id="L181" class="LineNr"> 181 </span>    tmp <span class="Special">&lt;-</span> address args
 <span id="L182" class="LineNr"> 182 </span>    <a href='cell.mu.html#L142'>new-pair</a> tmp, <a href='main.mu.html#L4'>main</a>, *tmp
 <span id="L183" class="LineNr"> 183 </span>    <span class="muComment"># clear real screen</span>
-<span id="L184" class="LineNr"> 184 </span>    <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <span class="Constant">0</span>/screen
-<span id="L185" class="LineNr"> 185 </span>    <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L184" class="LineNr"> 184 </span>    <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <span class="Constant">0</span>/screen
+<span id="L185" class="LineNr"> 185 </span>    <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>, <span class="Constant">0</span>
 <span id="L186" class="LineNr"> 186 </span>    <span class="muComment"># run</span>
 <span id="L187" class="LineNr"> 187 </span>    <span class="PreProc">var</span> out: (handle <a href='cell.mu.html#L1'>cell</a>)
 <span id="L188" class="LineNr"> 188 </span>    <span class="PreProc">var</span> out-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address out
@@ -281,7 +281,7 @@ if ('onhashchange' in window) {
 <span id="L216" class="LineNr"> 216 </span>        <a href='global.mu.html#L233'>edit-globals</a> globals, key
 <span id="L217" class="LineNr"> 217 </span>      <span class="Delimiter">}</span>
 <span id="L218" class="LineNr"> 218 </span>      <span class="muComment"># update sandbox whether the cursor is in globals or sandbox</span>
-<span id="L219" class="LineNr"> 219 </span>      <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, key, globals, data-disk
+<span id="L219" class="LineNr"> 219 </span>      <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, key, globals, data-disk
 <span id="L220" class="LineNr"> 220 </span>    <span class="Delimiter">}</span>
 <span id="L221" class="LineNr"> 221 </span>    <span class="PreProc">return</span>
 <span id="L222" class="LineNr"> 222 </span>  <span class="Delimiter">}</span>
@@ -447,7 +447,7 @@ if ('onhashchange' in window) {
 <span id="L382" class="LineNr"> 382 </span>    <a href='global.mu.html#L233'>edit-globals</a> globals, key
 <span id="L383" class="LineNr"> 383 </span>    <span class="PreProc">return</span>
 <span id="L384" class="LineNr"> 384 </span>  <span class="Delimiter">}</span>
-<span id="L385" class="LineNr"> 385 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, key, globals, data-disk
+<span id="L385" class="LineNr"> 385 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, key, globals, data-disk
 <span id="L386" class="LineNr"> 386 </span><span class="Delimiter">}</span>
 <span id="L387" class="LineNr"> 387 </span>
 <span id="L388" class="LineNr"> 388 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L388'>read-and-evaluate-and-save-gap-buffer-to-globals</a></span> _in-ah: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>), result-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), globals: (addr <a href='global.mu.html#L1'>global-table</a>), definitions-created: (addr stream int), trace: (addr trace), inner-screen-var: (addr handle <a href='cell.mu.html#L1'>cell</a>), inner-keyboard-var: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Delimiter">{</span>
@@ -500,32 +500,32 @@ if ('onhashchange' in window) {
 <span id="L435" class="LineNr"> 435 </span>  <span class="muComment"># setup: screen</span>
 <span id="L436" class="LineNr"> 436 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L437" class="LineNr"> 437 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L438" class="LineNr"> 438 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L438" class="LineNr"> 438 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L439" class="LineNr"> 439 </span>  <span class="muComment"># hit ctrl-g</span>
 <span id="L440" class="LineNr"> 440 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L441" class="LineNr"> 441 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L442" class="LineNr"> 442 </span>  <span class="muComment">#</span>
-<span id="L443" class="LineNr"> 443 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/0&quot;</span>
-<span id="L444" class="LineNr"> 444 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/1&quot;</span>
-<span id="L445" class="LineNr"> 445 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/2&quot;</span>
-<span id="L446" class="LineNr"> 446 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/3&quot;</span>
-<span id="L447" class="LineNr"> 447 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/4&quot;</span>
-<span id="L448" class="LineNr"> 448 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/5&quot;</span>
+<span id="L443" class="LineNr"> 443 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/0&quot;</span>
+<span id="L444" class="LineNr"> 444 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/1&quot;</span>
+<span id="L445" class="LineNr"> 445 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/2&quot;</span>
+<span id="L446" class="LineNr"> 446 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/3&quot;</span>
+<span id="L447" class="LineNr"> 447 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/4&quot;</span>
+<span id="L448" class="LineNr"> 448 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/5&quot;</span>
 <span id="L449" class="LineNr"> 449 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/6-text&quot;</span>
-<span id="L450" class="LineNr"> 450 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/6&quot;</span>
-<span id="L451" class="LineNr"> 451 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/7&quot;</span>
+<span id="L450" class="LineNr"> 450 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/6&quot;</span>
+<span id="L451" class="LineNr"> 451 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/7&quot;</span>
 <span id="L452" class="LineNr"> 452 </span>  <span class="muComment"># cursor is in the modal</span>
-<span id="L453" class="LineNr"> 453 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                |                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/8-cursor&quot;</span>
-<span id="L454" class="LineNr"> 454 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 ...............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/8&quot;</span>
-<span id="L455" class="LineNr"> 455 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/9&quot;</span>
-<span id="L456" class="LineNr"> 456 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/10&quot;</span>
-<span id="L457" class="LineNr"> 457 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/11&quot;</span>
-<span id="L458" class="LineNr"> 458 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/12&quot;</span>
-<span id="L459" class="LineNr"> 459 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/13&quot;</span>
-<span id="L460" class="LineNr"> 460 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/14&quot;</span>
+<span id="L453" class="LineNr"> 453 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                |                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/8-cursor&quot;</span>
+<span id="L454" class="LineNr"> 454 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 ...............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/8&quot;</span>
+<span id="L455" class="LineNr"> 455 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/9&quot;</span>
+<span id="L456" class="LineNr"> 456 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/10&quot;</span>
+<span id="L457" class="LineNr"> 457 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/11&quot;</span>
+<span id="L458" class="LineNr"> 458 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/12&quot;</span>
+<span id="L459" class="LineNr"> 459 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/13&quot;</span>
+<span id="L460" class="LineNr"> 460 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/14&quot;</span>
 <span id="L461" class="LineNr"> 461 </span>  <span class="muComment"># menu at bottom is correct in context</span>
 <span id="L462" class="LineNr"> 462 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">0xf</span>/y, <span class="Constant">&quot; ^r  run <a href='main.mu.html#L4'>main</a>   enter  go   ^m  create   esc  cancel   ^a  &lt;&lt;   ^b  &lt;word   ^f  word&gt;   ^e  &gt;&gt;                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/15-text&quot;</span>
-<span id="L463" class="LineNr"> 463 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/15&quot;</span>
+<span id="L463" class="LineNr"> 463 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L431'>test-go-modal</a>/15&quot;</span>
 <span id="L464" class="LineNr"> 464 </span><span class="Delimiter">}</span>
 <span id="L465" class="LineNr"> 465 </span>
 <span id="L466" class="LineNr"> 466 </span><span class="PreProc">fn</span> <span class="muTest"><a href='environment.mu.html#L466'>test-leave-go-modal</a></span> <span class="Delimiter">{</span>
@@ -535,7 +535,7 @@ if ('onhashchange' in window) {
 <span id="L470" class="LineNr"> 470 </span>  <span class="muComment"># setup: screen</span>
 <span id="L471" class="LineNr"> 471 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L472" class="LineNr"> 472 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L473" class="LineNr"> 473 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L473" class="LineNr"> 473 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L474" class="LineNr"> 474 </span>  <span class="muComment"># hit ctrl-g</span>
 <span id="L475" class="LineNr"> 475 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L476" class="LineNr"> 476 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
@@ -543,22 +543,22 @@ if ('onhashchange' in window) {
 <span id="L478" class="LineNr"> 478 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x1b</span>/escape, <span class="Constant">0</span>/no-disk
 <span id="L479" class="LineNr"> 479 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L480" class="LineNr"> 480 </span>  <span class="muComment"># no modal</span>
-<span id="L481" class="LineNr"> 481 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/0&quot;</span>
-<span id="L482" class="LineNr"> 482 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/1&quot;</span>
-<span id="L483" class="LineNr"> 483 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/2&quot;</span>
-<span id="L484" class="LineNr"> 484 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/3&quot;</span>
-<span id="L485" class="LineNr"> 485 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/4&quot;</span>
-<span id="L486" class="LineNr"> 486 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/5&quot;</span>
-<span id="L487" class="LineNr"> 487 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/6&quot;</span>
-<span id="L488" class="LineNr"> 488 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/7&quot;</span>
-<span id="L489" class="LineNr"> 489 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/8&quot;</span>
-<span id="L490" class="LineNr"> 490 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/9&quot;</span>
-<span id="L491" class="LineNr"> 491 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/10&quot;</span>
-<span id="L492" class="LineNr"> 492 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/11&quot;</span>
-<span id="L493" class="LineNr"> 493 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/12&quot;</span>
-<span id="L494" class="LineNr"> 494 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/13&quot;</span>
-<span id="L495" class="LineNr"> 495 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/14&quot;</span>
-<span id="L496" class="LineNr"> 496 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/15&quot;</span>
+<span id="L481" class="LineNr"> 481 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/0&quot;</span>
+<span id="L482" class="LineNr"> 482 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/1&quot;</span>
+<span id="L483" class="LineNr"> 483 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/2&quot;</span>
+<span id="L484" class="LineNr"> 484 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/3&quot;</span>
+<span id="L485" class="LineNr"> 485 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/4&quot;</span>
+<span id="L486" class="LineNr"> 486 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/5&quot;</span>
+<span id="L487" class="LineNr"> 487 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/6&quot;</span>
+<span id="L488" class="LineNr"> 488 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/7&quot;</span>
+<span id="L489" class="LineNr"> 489 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/8&quot;</span>
+<span id="L490" class="LineNr"> 490 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/9&quot;</span>
+<span id="L491" class="LineNr"> 491 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/10&quot;</span>
+<span id="L492" class="LineNr"> 492 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/11&quot;</span>
+<span id="L493" class="LineNr"> 493 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/12&quot;</span>
+<span id="L494" class="LineNr"> 494 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/13&quot;</span>
+<span id="L495" class="LineNr"> 495 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/14&quot;</span>
+<span id="L496" class="LineNr"> 496 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L466'>test-leave-go-modal</a>/15&quot;</span>
 <span id="L497" class="LineNr"> 497 </span><span class="Delimiter">}</span>
 <span id="L498" class="LineNr"> 498 </span>
 <span id="L499" class="LineNr"> 499 </span><span class="PreProc">fn</span> <span class="muTest"><a href='environment.mu.html#L499'>test-jump-to-global</a></span> <span class="Delimiter">{</span>
@@ -568,7 +568,7 @@ if ('onhashchange' in window) {
 <span id="L503" class="LineNr"> 503 </span>  <span class="muComment"># setup: screen</span>
 <span id="L504" class="LineNr"> 504 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L505" class="LineNr"> 505 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L506" class="LineNr"> 506 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L506" class="LineNr"> 506 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L507" class="LineNr"> 507 </span>  <span class="muComment"># define a global</span>
 <span id="L508" class="LineNr"> 508 </span>  <a href='environment.mu.html#L84'>type-in</a> env, <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;(define f 42)&quot;</span>
 <span id="L509" class="LineNr"> 509 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-disk
@@ -584,24 +584,24 @@ if ('onhashchange' in window) {
 <span id="L519" class="LineNr"> 519 </span>  <span class="muComment">#                                                                 | global definitions                                                                 | sandbox</span>
 <span id="L520" class="LineNr"> 520 </span>  <span class="muComment"># cursor now in global definition</span>
 <span id="L521" class="LineNr"> 521 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">1</span>/y, <span class="Constant">&quot;                                           (define f 42)                              <a href='../500fake-screen.mu.html#L14'>screen</a>:                                   &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/1&quot;</span>
-<span id="L522" class="LineNr"> 522 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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='environment.mu.html#L499'>test-jump-to-global</a>/1-cursor&quot;</span>
+<span id="L522" class="LineNr"> 522 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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='environment.mu.html#L499'>test-jump-to-global</a>/1-cursor&quot;</span>
 <span id="L523" class="LineNr"> 523 </span>  <span class="muComment"># no modal</span>
-<span id="L524" class="LineNr"> 524 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg0&quot;</span>
-<span id="L525" class="LineNr"> 525 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg1&quot;</span>
-<span id="L526" class="LineNr"> 526 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg2&quot;</span>
-<span id="L527" class="LineNr"> 527 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg3&quot;</span>
-<span id="L528" class="LineNr"> 528 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg4&quot;</span>
-<span id="L529" class="LineNr"> 529 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg5&quot;</span>
-<span id="L530" class="LineNr"> 530 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg6&quot;</span>
-<span id="L531" class="LineNr"> 531 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg7&quot;</span>
-<span id="L532" class="LineNr"> 532 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg8&quot;</span>
-<span id="L533" class="LineNr"> 533 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg9&quot;</span>
-<span id="L534" class="LineNr"> 534 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg10&quot;</span>
-<span id="L535" class="LineNr"> 535 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg11&quot;</span>
-<span id="L536" class="LineNr"> 536 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg12&quot;</span>
-<span id="L537" class="LineNr"> 537 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg13&quot;</span>
-<span id="L538" class="LineNr"> 538 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg14&quot;</span>
-<span id="L539" class="LineNr"> 539 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg15&quot;</span>
+<span id="L524" class="LineNr"> 524 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg0&quot;</span>
+<span id="L525" class="LineNr"> 525 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg1&quot;</span>
+<span id="L526" class="LineNr"> 526 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg2&quot;</span>
+<span id="L527" class="LineNr"> 527 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg3&quot;</span>
+<span id="L528" class="LineNr"> 528 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg4&quot;</span>
+<span id="L529" class="LineNr"> 529 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg5&quot;</span>
+<span id="L530" class="LineNr"> 530 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg6&quot;</span>
+<span id="L531" class="LineNr"> 531 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg7&quot;</span>
+<span id="L532" class="LineNr"> 532 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg8&quot;</span>
+<span id="L533" class="LineNr"> 533 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg9&quot;</span>
+<span id="L534" class="LineNr"> 534 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg10&quot;</span>
+<span id="L535" class="LineNr"> 535 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg11&quot;</span>
+<span id="L536" class="LineNr"> 536 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg12&quot;</span>
+<span id="L537" class="LineNr"> 537 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg13&quot;</span>
+<span id="L538" class="LineNr"> 538 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg14&quot;</span>
+<span id="L539" class="LineNr"> 539 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L499'>test-jump-to-global</a>/bg15&quot;</span>
 <span id="L540" class="LineNr"> 540 </span><span class="Delimiter">}</span>
 <span id="L541" class="LineNr"> 541 </span>
 <span id="L542" class="LineNr"> 542 </span><span class="PreProc">fn</span> <span class="muTest"><a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a></span> <span class="Delimiter">{</span>
@@ -611,34 +611,34 @@ if ('onhashchange' in window) {
 <span id="L546" class="LineNr"> 546 </span>  <span class="muComment"># setup: screen</span>
 <span id="L547" class="LineNr"> 547 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L548" class="LineNr"> 548 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L549" class="LineNr"> 549 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L549" class="LineNr"> 549 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L550" class="LineNr"> 550 </span>  <span class="muComment"># type a word at the cursor</span>
 <span id="L551" class="LineNr"> 551 </span>  <a href='environment.mu.html#L84'>type-in</a> env, <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;fn1&quot;</span>
 <span id="L552" class="LineNr"> 552 </span>  <span class="muComment"># hit ctrl-g</span>
 <span id="L553" class="LineNr"> 553 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L554" class="LineNr"> 554 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L555" class="LineNr"> 555 </span>  <span class="muComment"># modal prepopulates word at cursor</span>
-<span id="L556" class="LineNr"> 556 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/0&quot;</span>
-<span id="L557" class="LineNr"> 557 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/1&quot;</span>
-<span id="L558" class="LineNr"> 558 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/2&quot;</span>
-<span id="L559" class="LineNr"> 559 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/3&quot;</span>
-<span id="L560" class="LineNr"> 560 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/4&quot;</span>
-<span id="L561" class="LineNr"> 561 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/5&quot;</span>
+<span id="L556" class="LineNr"> 556 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/0&quot;</span>
+<span id="L557" class="LineNr"> 557 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/1&quot;</span>
+<span id="L558" class="LineNr"> 558 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/2&quot;</span>
+<span id="L559" class="LineNr"> 559 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/3&quot;</span>
+<span id="L560" class="LineNr"> 560 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/4&quot;</span>
+<span id="L561" class="LineNr"> 561 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/5&quot;</span>
 <span id="L562" class="LineNr"> 562 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/6-text&quot;</span>
-<span id="L563" class="LineNr"> 563 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/6&quot;</span>
-<span id="L564" class="LineNr"> 564 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/7&quot;</span>
+<span id="L563" class="LineNr"> 563 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/6&quot;</span>
+<span id="L564" class="LineNr"> 564 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/7&quot;</span>
 <span id="L565" class="LineNr"> 565 </span>  <span class="muComment"># word at cursor</span>
 <span id="L566" class="LineNr"> 566 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">8</span>/y, <span class="Constant">&quot;                                fn1                                                                                             &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/8-text&quot;</span>
 <span id="L567" class="LineNr"> 567 </span>  <span class="muComment"># new cursor position</span>
-<span id="L568" class="LineNr"> 568 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                   |                                                                                            &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/8-cursor&quot;</span>
-<span id="L569" class="LineNr"> 569 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                ... ............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/8&quot;</span>
-<span id="L570" class="LineNr"> 570 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/9&quot;</span>
-<span id="L571" class="LineNr"> 571 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/10&quot;</span>
-<span id="L572" class="LineNr"> 572 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/11&quot;</span>
-<span id="L573" class="LineNr"> 573 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/12&quot;</span>
-<span id="L574" class="LineNr"> 574 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/13&quot;</span>
-<span id="L575" class="LineNr"> 575 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/14&quot;</span>
-<span id="L576" class="LineNr"> 576 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/15&quot;</span>
+<span id="L568" class="LineNr"> 568 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                   |                                                                                            &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/8-cursor&quot;</span>
+<span id="L569" class="LineNr"> 569 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                ... ............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/8&quot;</span>
+<span id="L570" class="LineNr"> 570 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/9&quot;</span>
+<span id="L571" class="LineNr"> 571 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/10&quot;</span>
+<span id="L572" class="LineNr"> 572 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/11&quot;</span>
+<span id="L573" class="LineNr"> 573 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/12&quot;</span>
+<span id="L574" class="LineNr"> 574 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/13&quot;</span>
+<span id="L575" class="LineNr"> 575 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/14&quot;</span>
+<span id="L576" class="LineNr"> 576 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/15&quot;</span>
 <span id="L577" class="LineNr"> 577 </span>  <span class="muComment"># cancel</span>
 <span id="L578" class="LineNr"> 578 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x1b</span>/escape, <span class="Constant">0</span>/no-disk
 <span id="L579" class="LineNr"> 579 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
@@ -649,27 +649,27 @@ if ('onhashchange' in window) {
 <span id="L584" class="LineNr"> 584 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L585" class="LineNr"> 585 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L586" class="LineNr"> 586 </span>  <span class="muComment"># no word prepopulated since cursor is not on the word</span>
-<span id="L587" class="LineNr"> 587 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-0&quot;</span>
-<span id="L588" class="LineNr"> 588 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-1&quot;</span>
-<span id="L589" class="LineNr"> 589 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-2&quot;</span>
-<span id="L590" class="LineNr"> 590 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-3&quot;</span>
-<span id="L591" class="LineNr"> 591 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-4&quot;</span>
-<span id="L592" class="LineNr"> 592 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-5&quot;</span>
+<span id="L587" class="LineNr"> 587 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-0&quot;</span>
+<span id="L588" class="LineNr"> 588 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-1&quot;</span>
+<span id="L589" class="LineNr"> 589 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-2&quot;</span>
+<span id="L590" class="LineNr"> 590 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-3&quot;</span>
+<span id="L591" class="LineNr"> 591 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-4&quot;</span>
+<span id="L592" class="LineNr"> 592 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-5&quot;</span>
 <span id="L593" class="LineNr"> 593 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-6-text&quot;</span>
-<span id="L594" class="LineNr"> 594 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-6&quot;</span>
-<span id="L595" class="LineNr"> 595 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-7&quot;</span>
+<span id="L594" class="LineNr"> 594 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-6&quot;</span>
+<span id="L595" class="LineNr"> 595 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-7&quot;</span>
 <span id="L596" class="LineNr"> 596 </span>  <span class="muComment"># no word at cursor</span>
 <span id="L597" class="LineNr"> 597 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-8-text&quot;</span>
 <span id="L598" class="LineNr"> 598 </span>  <span class="muComment"># new cursor position</span>
-<span id="L599" class="LineNr"> 599 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                |                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-8-cursor&quot;</span>
-<span id="L600" class="LineNr"> 600 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 ...............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-8&quot;</span>
-<span id="L601" class="LineNr"> 601 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-9&quot;</span>
-<span id="L602" class="LineNr"> 602 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-10&quot;</span>
-<span id="L603" class="LineNr"> 603 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-11&quot;</span>
-<span id="L604" class="LineNr"> 604 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-12&quot;</span>
-<span id="L605" class="LineNr"> 605 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-13&quot;</span>
-<span id="L606" class="LineNr"> 606 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-14&quot;</span>
-<span id="L607" class="LineNr"> 607 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-15&quot;</span>
+<span id="L599" class="LineNr"> 599 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                |                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-8-cursor&quot;</span>
+<span id="L600" class="LineNr"> 600 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 ...............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-8&quot;</span>
+<span id="L601" class="LineNr"> 601 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-9&quot;</span>
+<span id="L602" class="LineNr"> 602 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-10&quot;</span>
+<span id="L603" class="LineNr"> 603 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-11&quot;</span>
+<span id="L604" class="LineNr"> 604 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-12&quot;</span>
+<span id="L605" class="LineNr"> 605 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-13&quot;</span>
+<span id="L606" class="LineNr"> 606 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-14&quot;</span>
+<span id="L607" class="LineNr"> 607 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test2-15&quot;</span>
 <span id="L608" class="LineNr"> 608 </span>  <span class="muComment"># cancel</span>
 <span id="L609" class="LineNr"> 609 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x1b</span>/escape, <span class="Constant">0</span>/no-disk
 <span id="L610" class="LineNr"> 610 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
@@ -682,27 +682,27 @@ if ('onhashchange' in window) {
 <span id="L617" class="LineNr"> 617 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L618" class="LineNr"> 618 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L619" class="LineNr"> 619 </span>  <span class="muComment"># word prepopulated like before</span>
-<span id="L620" class="LineNr"> 620 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-0&quot;</span>
-<span id="L621" class="LineNr"> 621 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-1&quot;</span>
-<span id="L622" class="LineNr"> 622 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-2&quot;</span>
-<span id="L623" class="LineNr"> 623 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-3&quot;</span>
-<span id="L624" class="LineNr"> 624 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-4&quot;</span>
-<span id="L625" class="LineNr"> 625 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-5&quot;</span>
+<span id="L620" class="LineNr"> 620 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-0&quot;</span>
+<span id="L621" class="LineNr"> 621 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-1&quot;</span>
+<span id="L622" class="LineNr"> 622 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-2&quot;</span>
+<span id="L623" class="LineNr"> 623 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-3&quot;</span>
+<span id="L624" class="LineNr"> 624 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-4&quot;</span>
+<span id="L625" class="LineNr"> 625 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-5&quot;</span>
 <span id="L626" class="LineNr"> 626 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-6-text&quot;</span>
-<span id="L627" class="LineNr"> 627 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-6&quot;</span>
-<span id="L628" class="LineNr"> 628 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-7&quot;</span>
+<span id="L627" class="LineNr"> 627 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-6&quot;</span>
+<span id="L628" class="LineNr"> 628 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-7&quot;</span>
 <span id="L629" class="LineNr"> 629 </span>  <span class="muComment"># word at cursor</span>
 <span id="L630" class="LineNr"> 630 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">8</span>/y, <span class="Constant">&quot;                                fn1                                                                                             &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-8-text&quot;</span>
 <span id="L631" class="LineNr"> 631 </span>  <span class="muComment"># new cursor position</span>
-<span id="L632" class="LineNr"> 632 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                   |                                                                                            &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-8-cursor&quot;</span>
-<span id="L633" class="LineNr"> 633 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                ... ............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-8&quot;</span>
-<span id="L634" class="LineNr"> 634 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-9&quot;</span>
-<span id="L635" class="LineNr"> 635 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-10&quot;</span>
-<span id="L636" class="LineNr"> 636 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-11&quot;</span>
-<span id="L637" class="LineNr"> 637 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-12&quot;</span>
-<span id="L638" class="LineNr"> 638 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-13&quot;</span>
-<span id="L639" class="LineNr"> 639 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-14&quot;</span>
-<span id="L640" class="LineNr"> 640 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-15&quot;</span>
+<span id="L632" class="LineNr"> 632 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                   |                                                                                            &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-8-cursor&quot;</span>
+<span id="L633" class="LineNr"> 633 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                ... ............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-8&quot;</span>
+<span id="L634" class="LineNr"> 634 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-9&quot;</span>
+<span id="L635" class="LineNr"> 635 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-10&quot;</span>
+<span id="L636" class="LineNr"> 636 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-11&quot;</span>
+<span id="L637" class="LineNr"> 637 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-12&quot;</span>
+<span id="L638" class="LineNr"> 638 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-13&quot;</span>
+<span id="L639" class="LineNr"> 639 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-14&quot;</span>
+<span id="L640" class="LineNr"> 640 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L542'>test-go-modal-prepopulates-word-at-cursor</a>/test3-15&quot;</span>
 <span id="L641" class="LineNr"> 641 </span><span class="Delimiter">}</span>
 <span id="L642" class="LineNr"> 642 </span>
 <span id="L643" class="LineNr"> 643 </span><span class="PreProc">fn</span> <span class="muTest"><a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a></span> <span class="Delimiter">{</span>
@@ -712,7 +712,7 @@ if ('onhashchange' in window) {
 <span id="L647" class="LineNr"> 647 </span>  <span class="muComment"># setup: screen</span>
 <span id="L648" class="LineNr"> 648 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L649" class="LineNr"> 649 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L650" class="LineNr"> 650 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L650" class="LineNr"> 650 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L651" class="LineNr"> 651 </span>  <span class="muComment"># type in any (nonexistent) global name</span>
 <span id="L652" class="LineNr"> 652 </span>  <a href='environment.mu.html#L84'>type-in</a> env, <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;f&quot;</span>
 <span id="L653" class="LineNr"> 653 </span>  <span class="muComment"># hit ctrl-g</span>
@@ -723,28 +723,28 @@ if ('onhashchange' in window) {
 <span id="L658" class="LineNr"> 658 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L659" class="LineNr"> 659 </span>  <span class="muComment"># modal now shows an error</span>
 <span id="L660" class="LineNr"> 660 </span>  <span class="muComment">#                                                                 | global definitions                                                                 | sandbox</span>
-<span id="L661" class="LineNr"> 661 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/0&quot;</span>
-<span id="L662" class="LineNr"> 662 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/1&quot;</span>
-<span id="L663" class="LineNr"> 663 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/2&quot;</span>
-<span id="L664" class="LineNr"> 664 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/3&quot;</span>
-<span id="L665" class="LineNr"> 665 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/4&quot;</span>
-<span id="L666" class="LineNr"> 666 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/5&quot;</span>
+<span id="L661" class="LineNr"> 661 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/0&quot;</span>
+<span id="L662" class="LineNr"> 662 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/1&quot;</span>
+<span id="L663" class="LineNr"> 663 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/2&quot;</span>
+<span id="L664" class="LineNr"> 664 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/3&quot;</span>
+<span id="L665" class="LineNr"> 665 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/4&quot;</span>
+<span id="L666" class="LineNr"> 666 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/5&quot;</span>
 <span id="L667" class="LineNr"> 667 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/6-text&quot;</span>
-<span id="L668" class="LineNr"> 668 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/6&quot;</span>
-<span id="L669" class="LineNr"> 669 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                no such <a href='global.mu.html#L8'>global</a>                                                                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/7-text&quot;</span>
-<span id="L670" class="LineNr"> 670 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/7&quot;</span>
+<span id="L668" class="LineNr"> 668 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/6&quot;</span>
+<span id="L669" class="LineNr"> 669 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                no such <a href='global.mu.html#L8'>global</a>                                                                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/7-text&quot;</span>
+<span id="L670" class="LineNr"> 670 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/7&quot;</span>
 <span id="L671" class="LineNr"> 671 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">8</span>/y, <span class="Constant">&quot;                                f                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/8-text&quot;</span>
-<span id="L672" class="LineNr"> 672 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/8-cursor&quot;</span>
-<span id="L673" class="LineNr"> 673 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/8&quot;</span>
-<span id="L674" class="LineNr"> 674 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/9&quot;</span>
-<span id="L675" class="LineNr"> 675 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/10&quot;</span>
-<span id="L676" class="LineNr"> 676 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/11&quot;</span>
-<span id="L677" class="LineNr"> 677 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/12&quot;</span>
-<span id="L678" class="LineNr"> 678 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/13&quot;</span>
-<span id="L679" class="LineNr"> 679 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/14&quot;</span>
+<span id="L672" class="LineNr"> 672 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/8-cursor&quot;</span>
+<span id="L673" class="LineNr"> 673 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/8&quot;</span>
+<span id="L674" class="LineNr"> 674 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/9&quot;</span>
+<span id="L675" class="LineNr"> 675 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/10&quot;</span>
+<span id="L676" class="LineNr"> 676 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/11&quot;</span>
+<span id="L677" class="LineNr"> 677 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/12&quot;</span>
+<span id="L678" class="LineNr"> 678 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/13&quot;</span>
+<span id="L679" class="LineNr"> 679 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/14&quot;</span>
 <span id="L680" class="LineNr"> 680 </span>  <span class="muComment"># menu at bottom is correct in context</span>
 <span id="L681" class="LineNr"> 681 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">0xf</span>/y, <span class="Constant">&quot; ^r  run <a href='main.mu.html#L4'>main</a>   enter  go   ^m  create   esc  cancel   ^a  &lt;&lt;   ^b  &lt;word   ^f  word&gt;   ^e  &gt;&gt;                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/15-text&quot;</span>
-<span id="L682" class="LineNr"> 682 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/15&quot;</span>
+<span id="L682" class="LineNr"> 682 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/15&quot;</span>
 <span id="L683" class="LineNr"> 683 </span>  <span class="muComment"># cancel</span>
 <span id="L684" class="LineNr"> 684 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x1b</span>/escape, <span class="Constant">0</span>/no-disk
 <span id="L685" class="LineNr"> 685 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
@@ -752,28 +752,28 @@ if ('onhashchange' in window) {
 <span id="L687" class="LineNr"> 687 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L688" class="LineNr"> 688 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L689" class="LineNr"> 689 </span>  <span class="muComment"># word prepopulated like before, but no error</span>
-<span id="L690" class="LineNr"> 690 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-0&quot;</span>
-<span id="L691" class="LineNr"> 691 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-1&quot;</span>
-<span id="L692" class="LineNr"> 692 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-2&quot;</span>
-<span id="L693" class="LineNr"> 693 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-3&quot;</span>
-<span id="L694" class="LineNr"> 694 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-4&quot;</span>
-<span id="L695" class="LineNr"> 695 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-5&quot;</span>
+<span id="L690" class="LineNr"> 690 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-0&quot;</span>
+<span id="L691" class="LineNr"> 691 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-1&quot;</span>
+<span id="L692" class="LineNr"> 692 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-2&quot;</span>
+<span id="L693" class="LineNr"> 693 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-3&quot;</span>
+<span id="L694" class="LineNr"> 694 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-4&quot;</span>
+<span id="L695" class="LineNr"> 695 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-5&quot;</span>
 <span id="L696" class="LineNr"> 696 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-6-text&quot;</span>
-<span id="L697" class="LineNr"> 697 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-6&quot;</span>
-<span id="L698" class="LineNr"> 698 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-7-text&quot;</span>
-<span id="L699" class="LineNr"> 699 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-7&quot;</span>
+<span id="L697" class="LineNr"> 697 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-6&quot;</span>
+<span id="L698" class="LineNr"> 698 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-7-text&quot;</span>
+<span id="L699" class="LineNr"> 699 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-7&quot;</span>
 <span id="L700" class="LineNr"> 700 </span>  <span class="muComment"># same word at cursor</span>
 <span id="L701" class="LineNr"> 701 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">8</span>/y, <span class="Constant">&quot;                                f                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-8-text&quot;</span>
 <span id="L702" class="LineNr"> 702 </span>  <span class="muComment"># new cursor position</span>
-<span id="L703" class="LineNr"> 703 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-8-cursor&quot;</span>
-<span id="L704" class="LineNr"> 704 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-8&quot;</span>
-<span id="L705" class="LineNr"> 705 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-9&quot;</span>
-<span id="L706" class="LineNr"> 706 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-10&quot;</span>
-<span id="L707" class="LineNr"> 707 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-11&quot;</span>
-<span id="L708" class="LineNr"> 708 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-12&quot;</span>
-<span id="L709" class="LineNr"> 709 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-13&quot;</span>
-<span id="L710" class="LineNr"> 710 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-14&quot;</span>
-<span id="L711" class="LineNr"> 711 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-15&quot;</span>
+<span id="L703" class="LineNr"> 703 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-8-cursor&quot;</span>
+<span id="L704" class="LineNr"> 704 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-8&quot;</span>
+<span id="L705" class="LineNr"> 705 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-9&quot;</span>
+<span id="L706" class="LineNr"> 706 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-10&quot;</span>
+<span id="L707" class="LineNr"> 707 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-11&quot;</span>
+<span id="L708" class="LineNr"> 708 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-12&quot;</span>
+<span id="L709" class="LineNr"> 709 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-13&quot;</span>
+<span id="L710" class="LineNr"> 710 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-14&quot;</span>
+<span id="L711" class="LineNr"> 711 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L643'>test-jump-to-nonexistent-global</a>/test2-15&quot;</span>
 <span id="L712" class="LineNr"> 712 </span><span class="Delimiter">}</span>
 <span id="L713" class="LineNr"> 713 </span>
 <span id="L714" class="LineNr"> 714 </span><span class="PreProc">fn</span> <span class="muTest"><a href='environment.mu.html#L714'>test-create-global</a></span> <span class="Delimiter">{</span>
@@ -783,7 +783,7 @@ if ('onhashchange' in window) {
 <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='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L720" class="LineNr"> 720 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L721" class="LineNr"> 721 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L721" class="LineNr"> 721 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x30</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L722" class="LineNr"> 722 </span>  <span class="muComment"># hit ctrl-g</span>
 <span id="L723" class="LineNr"> 723 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L724" class="LineNr"> 724 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
@@ -794,24 +794,24 @@ if ('onhashchange' in window) {
 <span id="L729" class="LineNr"> 729 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L730" class="LineNr"> 730 </span>  <span class="muComment">#                                                                 | global definitions                                                                 | sandbox</span>
 <span id="L731" class="LineNr"> 731 </span>  <span class="muComment"># cursor now on global side</span>
-<span id="L732" class="LineNr"> 732 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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='environment.mu.html#L714'>test-create-global</a>/1-cursor&quot;</span>
+<span id="L732" class="LineNr"> 732 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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='environment.mu.html#L714'>test-create-global</a>/1-cursor&quot;</span>
 <span id="L733" class="LineNr"> 733 </span>  <span class="muComment"># no modal</span>
-<span id="L734" class="LineNr"> 734 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg0&quot;</span>
-<span id="L735" class="LineNr"> 735 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg1&quot;</span>
-<span id="L736" class="LineNr"> 736 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg2&quot;</span>
-<span id="L737" class="LineNr"> 737 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg3&quot;</span>
-<span id="L738" class="LineNr"> 738 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg4&quot;</span>
-<span id="L739" class="LineNr"> 739 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg5&quot;</span>
-<span id="L740" class="LineNr"> 740 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg6&quot;</span>
-<span id="L741" class="LineNr"> 741 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg7&quot;</span>
-<span id="L742" class="LineNr"> 742 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg8&quot;</span>
-<span id="L743" class="LineNr"> 743 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg9&quot;</span>
-<span id="L744" class="LineNr"> 744 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg10&quot;</span>
-<span id="L745" class="LineNr"> 745 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg11&quot;</span>
-<span id="L746" class="LineNr"> 746 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg12&quot;</span>
-<span id="L747" class="LineNr"> 747 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg13&quot;</span>
-<span id="L748" class="LineNr"> 748 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg14&quot;</span>
-<span id="L749" class="LineNr"> 749 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg15&quot;</span>
+<span id="L734" class="LineNr"> 734 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg0&quot;</span>
+<span id="L735" class="LineNr"> 735 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg1&quot;</span>
+<span id="L736" class="LineNr"> 736 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg2&quot;</span>
+<span id="L737" class="LineNr"> 737 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg3&quot;</span>
+<span id="L738" class="LineNr"> 738 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg4&quot;</span>
+<span id="L739" class="LineNr"> 739 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg5&quot;</span>
+<span id="L740" class="LineNr"> 740 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg6&quot;</span>
+<span id="L741" class="LineNr"> 741 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg7&quot;</span>
+<span id="L742" class="LineNr"> 742 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg8&quot;</span>
+<span id="L743" class="LineNr"> 743 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg9&quot;</span>
+<span id="L744" class="LineNr"> 744 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg10&quot;</span>
+<span id="L745" class="LineNr"> 745 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg11&quot;</span>
+<span id="L746" class="LineNr"> 746 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg12&quot;</span>
+<span id="L747" class="LineNr"> 747 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg13&quot;</span>
+<span id="L748" class="LineNr"> 748 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg14&quot;</span>
+<span id="L749" class="LineNr"> 749 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L714'>test-create-global</a>/bg15&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="muTest"><a href='environment.mu.html#L752'>test-create-nonexistent-global</a></span> <span class="Delimiter">{</span>
@@ -821,7 +821,7 @@ if ('onhashchange' in window) {
 <span id="L756" class="LineNr"> 756 </span>  <span class="muComment"># setup: screen</span>
 <span id="L757" class="LineNr"> 757 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L758" class="LineNr"> 758 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L759" class="LineNr"> 759 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L759" class="LineNr"> 759 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L760" class="LineNr"> 760 </span>  <span class="muComment"># define a global</span>
 <span id="L761" class="LineNr"> 761 </span>  <a href='environment.mu.html#L84'>type-in</a> env, <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;(define f 42)&quot;</span>
 <span id="L762" class="LineNr"> 762 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-disk
@@ -836,28 +836,28 @@ if ('onhashchange' in window) {
 <span id="L771" class="LineNr"> 771 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L772" class="LineNr"> 772 </span>  <span class="muComment"># modal now shows an error</span>
 <span id="L773" class="LineNr"> 773 </span>  <span class="muComment">#                                                                 | global definitions                                                                 | sandbox</span>
-<span id="L774" class="LineNr"> 774 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/0&quot;</span>
-<span id="L775" class="LineNr"> 775 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/1&quot;</span>
-<span id="L776" class="LineNr"> 776 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/2&quot;</span>
-<span id="L777" class="LineNr"> 777 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/3&quot;</span>
-<span id="L778" class="LineNr"> 778 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/4&quot;</span>
-<span id="L779" class="LineNr"> 779 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/5&quot;</span>
+<span id="L774" class="LineNr"> 774 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/0&quot;</span>
+<span id="L775" class="LineNr"> 775 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/1&quot;</span>
+<span id="L776" class="LineNr"> 776 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/2&quot;</span>
+<span id="L777" class="LineNr"> 777 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/3&quot;</span>
+<span id="L778" class="LineNr"> 778 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/4&quot;</span>
+<span id="L779" class="LineNr"> 779 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/5&quot;</span>
 <span id="L780" class="LineNr"> 780 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/6-text&quot;</span>
-<span id="L781" class="LineNr"> 781 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/6&quot;</span>
-<span id="L782" class="LineNr"> 782 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                already exists                                                                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/7-text&quot;</span>
-<span id="L783" class="LineNr"> 783 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/7&quot;</span>
-<span id="L784" class="LineNr"> 784 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/fg,           <span class="Constant">8</span>/y, <span class="Constant">&quot;                                f                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/8-text&quot;</span>
-<span id="L785" class="LineNr"> 785 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/8-cursor&quot;</span>
-<span id="L786" class="LineNr"> 786 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/8&quot;</span>
-<span id="L787" class="LineNr"> 787 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/9&quot;</span>
-<span id="L788" class="LineNr"> 788 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/10&quot;</span>
-<span id="L789" class="LineNr"> 789 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/11&quot;</span>
-<span id="L790" class="LineNr"> 790 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/12&quot;</span>
-<span id="L791" class="LineNr"> 791 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/13&quot;</span>
-<span id="L792" class="LineNr"> 792 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/14&quot;</span>
+<span id="L781" class="LineNr"> 781 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/6&quot;</span>
+<span id="L782" class="LineNr"> 782 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                already exists                                                                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/7-text&quot;</span>
+<span id="L783" class="LineNr"> 783 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/7&quot;</span>
+<span id="L784" class="LineNr"> 784 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/fg,           <span class="Constant">8</span>/y, <span class="Constant">&quot;                                f                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/8-text&quot;</span>
+<span id="L785" class="LineNr"> 785 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/8-cursor&quot;</span>
+<span id="L786" class="LineNr"> 786 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/8&quot;</span>
+<span id="L787" class="LineNr"> 787 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/9&quot;</span>
+<span id="L788" class="LineNr"> 788 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/10&quot;</span>
+<span id="L789" class="LineNr"> 789 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/11&quot;</span>
+<span id="L790" class="LineNr"> 790 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/12&quot;</span>
+<span id="L791" class="LineNr"> 791 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/13&quot;</span>
+<span id="L792" class="LineNr"> 792 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/14&quot;</span>
 <span id="L793" class="LineNr"> 793 </span>  <span class="muComment"># menu at bottom is correct in context</span>
 <span id="L794" class="LineNr"> 794 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">0xf</span>/y, <span class="Constant">&quot; ^r  run <a href='main.mu.html#L4'>main</a>   enter  go   ^m  create   esc  cancel   ^a  &lt;&lt;   ^b  &lt;word   ^f  word&gt;   ^e  &gt;&gt;                                  &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/15-text&quot;</span>
-<span id="L795" class="LineNr"> 795 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/15&quot;</span>
+<span id="L795" class="LineNr"> 795 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/15&quot;</span>
 <span id="L796" class="LineNr"> 796 </span>  <span class="muComment"># cancel</span>
 <span id="L797" class="LineNr"> 797 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">0x1b</span>/escape, <span class="Constant">0</span>/no-disk
 <span id="L798" class="LineNr"> 798 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
@@ -865,35 +865,35 @@ if ('onhashchange' in window) {
 <span id="L800" class="LineNr"> 800 </span>  <a href='environment.mu.html#L148'>edit-environment</a> env, <span class="Constant">7</span>/ctrl-g, <span class="Constant">0</span>/no-disk
 <span id="L801" class="LineNr"> 801 </span>  <a href='environment.mu.html#L115'>render-environment</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, env
 <span id="L802" class="LineNr"> 802 </span>  <span class="muComment"># word prepopulated like before, but no error</span>
-<span id="L803" class="LineNr"> 803 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-0&quot;</span>
-<span id="L804" class="LineNr"> 804 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-1&quot;</span>
-<span id="L805" class="LineNr"> 805 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-2&quot;</span>
-<span id="L806" class="LineNr"> 806 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-3&quot;</span>
-<span id="L807" class="LineNr"> 807 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-4&quot;</span>
-<span id="L808" class="LineNr"> 808 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-5&quot;</span>
+<span id="L803" class="LineNr"> 803 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">0</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-0&quot;</span>
+<span id="L804" class="LineNr"> 804 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">1</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-1&quot;</span>
+<span id="L805" class="LineNr"> 805 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">2</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-2&quot;</span>
+<span id="L806" class="LineNr"> 806 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-3&quot;</span>
+<span id="L807" class="LineNr"> 807 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-4&quot;</span>
+<span id="L808" class="LineNr"> 808 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-5&quot;</span>
 <span id="L809" class="LineNr"> 809 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>                     <a href='../500fake-screen.mu.html#L14'>screen</a>,                 <span class="Constant">6</span>/y, <span class="Constant">&quot;                                    go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)                                                 &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-6-text&quot;</span>
-<span id="L810" class="LineNr"> 810 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-6&quot;</span>
-<span id="L811" class="LineNr"> 811 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-7-text&quot;</span>
-<span id="L812" class="LineNr"> 812 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-7&quot;</span>
+<span id="L810" class="LineNr"> 810 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-6&quot;</span>
+<span id="L811" class="LineNr"> 811 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>,     <span class="Constant">7</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-7-text&quot;</span>
+<span id="L812" class="LineNr"> 812 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                                ................................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-7&quot;</span>
 <span id="L813" class="LineNr"> 813 </span>  <span class="muComment"># same word at cursor</span>
-<span id="L814" class="LineNr"> 814 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/fg,           <span class="Constant">8</span>/y, <span class="Constant">&quot;                                f                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-8-text&quot;</span>
+<span id="L814" class="LineNr"> 814 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/fg,           <span class="Constant">8</span>/y, <span class="Constant">&quot;                                f                                                                                               &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-8-text&quot;</span>
 <span id="L815" class="LineNr"> 815 </span>  <span class="muComment"># new cursor position</span>
-<span id="L816" class="LineNr"> 816 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-8-cursor&quot;</span>
-<span id="L817" class="LineNr"> 817 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-8&quot;</span>
-<span id="L818" class="LineNr"> 818 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-9&quot;</span>
-<span id="L819" class="LineNr"> 819 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-10&quot;</span>
-<span id="L820" class="LineNr"> 820 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-11&quot;</span>
-<span id="L821" class="LineNr"> 821 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-12&quot;</span>
-<span id="L822" class="LineNr"> 822 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-13&quot;</span>
-<span id="L823" class="LineNr"> 823 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-14&quot;</span>
-<span id="L824" class="LineNr"> 824 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-15&quot;</span>
+<span id="L816" class="LineNr"> 816 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,   <span class="Constant">0</span>/bg=cursor,  <span class="Constant">8</span>/y, <span class="Constant">&quot;                                 |                                                                                              &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-8-cursor&quot;</span>
+<span id="L817" class="LineNr"> 817 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                                . ..............................................................                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-8&quot;</span>
+<span id="L818" class="LineNr"> 818 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-9&quot;</span>
+<span id="L819" class="LineNr"> 819 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-10&quot;</span>
+<span id="L820" class="LineNr"> 820 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-11&quot;</span>
+<span id="L821" class="LineNr"> 821 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xc</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-12&quot;</span>
+<span id="L822" class="LineNr"> 822 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xd</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-13&quot;</span>
+<span id="L823" class="LineNr"> 823 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xe</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-14&quot;</span>
+<span id="L824" class="LineNr"> 824 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xf</span>/bg=modal, <span class="Constant">0xf</span>/y, <span class="Constant">&quot;                                                                                                                                &quot;</span>, <span class="Constant">&quot;F - <a href='environment.mu.html#L752'>test-create-nonexistent-global</a>/test2-15&quot;</span>
 <span id="L825" class="LineNr"> 825 </span><span class="Delimiter">}</span>
 <span id="L826" class="LineNr"> 826 </span>
 <span id="L827" class="LineNr"> 827 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L827'>render-go-modal</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='environment.mu.html#L8'>environment</a>) <span class="Delimiter">{</span>
 <span id="L828" class="LineNr"> 828 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='environment.mu.html#L8'>environment</a>) <span class="Special">&lt;-</span> copy _self
 <span id="L829" class="LineNr"> 829 </span>  <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L830" class="LineNr"> 830 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L831" class="LineNr"> 831 </span>  width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L831" class="LineNr"> 831 </span>  width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L832" class="LineNr"> 832 </span>  <span class="muComment"># xmin = max(0, width/2 - 0x20)</span>
 <span id="L833" class="LineNr"> 833 </span>  <span class="PreProc">var</span> xmin: int
 <span id="L834" class="LineNr"> 834 </span>  <span class="PreProc">var</span> tmp/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy width
@@ -927,10 +927,10 @@ if ('onhashchange' in window) {
 <span id="L862" class="LineNr"> 862 </span>  tmp <span class="Special">&lt;-</span> add <span class="Constant">3</span>
 <span id="L863" class="LineNr"> 863 </span>  copy-to ymax, tmp
 <span id="L864" class="LineNr"> 864 </span>  <span class="muComment">#</span>
-<span id="L865" class="LineNr"> 865 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, ymin, xmax, ymax, <span class="Constant">0xf</span>/bg=modal
+<span id="L865" class="LineNr"> 865 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, ymin, xmax, ymax, <span class="Constant">0xf</span>/bg=modal
 <span id="L866" class="LineNr"> 866 </span>  add-to xmin, <span class="Constant">4</span>
-<span id="L867" class="LineNr"> 867 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, ymin
-<span id="L868" class="LineNr"> 868 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)&quot;</span>, xmax, <span class="Constant">8</span>/fg=dark-grey, <span class="Constant">0xf</span>/bg=modal
+<span id="L867" class="LineNr"> 867 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, ymin
+<span id="L868" class="LineNr"> 868 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;go to <a href='global.mu.html#L8'>global</a> (or leave blank to go to REPL)&quot;</span>, xmax, <span class="Constant">8</span>/fg=dark-grey, <span class="Constant">0xf</span>/bg=modal
 <span id="L869" class="LineNr"> 869 </span>  <span class="PreProc">var</span> partial-global-name-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, partial-global-name
 <span id="L870" class="LineNr"> 870 </span>  <span class="PreProc">var</span> _partial-global-name/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *partial-global-name-ah
 <span id="L871" class="LineNr"> 871 </span>  <span class="PreProc">var</span> partial-global-name/<span class="muRegEdx">edx</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _partial-global-name
@@ -941,7 +941,7 @@ if ('onhashchange' in window) {
 <span id="L876" class="LineNr"> 876 </span>    <span class="PreProc">var</span> go-modal-error/eax: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *go-modal-error-ah
 <span id="L877" class="LineNr"> 877 </span>    compare go-modal-error, <span class="Constant">0</span>
 <span id="L878" class="LineNr"> 878 </span>    <span class="PreProc">break-if-=</span>
-<span id="L879" class="LineNr"> 879 </span>    <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, go-modal-error, xmin, xmax, ymin, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>, <span class="Constant">0xf</span>/bg=modal
+<span id="L879" class="LineNr"> 879 </span>    <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, go-modal-error, xmin, xmax, ymin, <span class="Constant">4</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>, <span class="Constant">0xf</span>/bg=modal
 <span id="L880" class="LineNr"> 880 </span>  <span class="Delimiter">}</span>
 <span id="L881" class="LineNr"> 881 </span>  increment ymin
 <span id="L882" class="LineNr"> 882 </span>  <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
@@ -953,30 +953,30 @@ if ('onhashchange' in window) {
 <span id="L888" class="LineNr"> 888 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='environment.mu.html#L8'>environment</a>) <span class="Special">&lt;-</span> copy _self
 <span id="L889" class="LineNr"> 889 </span>  <span class="PreProc">var</span> _width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L890" class="LineNr"> 890 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L891" class="LineNr"> 891 </span>  _width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L891" class="LineNr"> 891 </span>  _width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L892" class="LineNr"> 892 </span>  <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy _width
 <span id="L893" class="LineNr"> 893 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
 <span id="L894" class="LineNr"> 894 </span>  y <span class="Special">&lt;-</span> decrement
 <span id="L895" class="LineNr"> 895 </span>  <span class="PreProc">var</span> height/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy y
 <span id="L896" class="LineNr"> 896 </span>  height <span class="Special">&lt;-</span> increment
-<span id="L897" class="LineNr"> 897 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L898" class="LineNr"> 898 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
-<span id="L899" class="LineNr"> 899 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L900" class="LineNr"> 900 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L901" class="LineNr"> 901 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; enter &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0xc</span>/bg=menu-really-highlight
-<span id="L902" class="LineNr"> 902 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L903" class="LineNr"> 903 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0xc</span>/bg=menu-really-highlight
-<span id="L904" class="LineNr"> 904 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; create  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L905" class="LineNr"> 905 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; esc &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L906" class="LineNr"> 906 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; cancel  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L907" class="LineNr"> 907 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^a &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L908" class="LineNr"> 908 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;&lt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L909" class="LineNr"> 909 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^b &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L910" class="LineNr"> 910 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;word  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L911" class="LineNr"> 911 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^f &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L912" class="LineNr"> 912 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; word&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L913" class="LineNr"> 913 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^e &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L914" class="LineNr"> 914 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &gt;&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L897" class="LineNr"> 897 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L898" class="LineNr"> 898 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L899" class="LineNr"> 899 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L900" class="LineNr"> 900 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L901" class="LineNr"> 901 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; enter &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0xc</span>/bg=menu-really-highlight
+<span id="L902" class="LineNr"> 902 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L903" class="LineNr"> 903 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0xc</span>/bg=menu-really-highlight
+<span id="L904" class="LineNr"> 904 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; create  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L905" class="LineNr"> 905 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; esc &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L906" class="LineNr"> 906 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; cancel  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L907" class="LineNr"> 907 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^a &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L908" class="LineNr"> 908 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;&lt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L909" class="LineNr"> 909 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^b &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L910" class="LineNr"> 910 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;word  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L911" class="LineNr"> 911 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^f &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L912" class="LineNr"> 912 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; word&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L913" class="LineNr"> 913 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^e &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L914" class="LineNr"> 914 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &gt;&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L915" class="LineNr"> 915 </span><span class="Delimiter">}</span>
 <span id="L916" class="LineNr"> 916 </span>
 <span id="L917" class="LineNr"> 917 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L917'>word-at-cursor</a></span> _self: (addr <a href='environment.mu.html#L8'>environment</a>), out: (addr stream byte) <span class="Delimiter">{</span>
@@ -1017,18 +1017,18 @@ if ('onhashchange' in window) {
 <span id="L952" class="LineNr"> 952 </span>  <span class="muComment"># data-disk -&gt; stream</span>
 <span id="L953" class="LineNr"> 953 </span>  <span class="PreProc">var</span> s-storage: (stream byte <span class="Constant">0x40000</span>)  <span class="muComment"># space for 0x200/sectors</span>
 <span id="L954" class="LineNr"> 954 </span>  <span class="PreProc">var</span> s/<span class="muRegEbx">ebx</span>: (addr stream byte) <span class="Special">&lt;-</span> address s-storage
-<span id="L955" class="LineNr"> 955 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;loading sectors from data disk&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L955" class="LineNr"> 955 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;loading sectors from data disk&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L956" class="LineNr"> 956 </span>  <a href='../501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 <span id="L957" class="LineNr"> 957 </span>  <a href='../510disk.mu.html#L1'>load-sectors</a> data-disk, <span class="Constant">0</span>/lba, <span class="Constant">0x200</span>/sectors, s
 <span id="L958" class="LineNr"> 958 </span><span class="CommentedCode">#?   draw-stream-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, s, 7/fg, 0xc5/bg=blue-bg</span>
 <span id="L959" class="LineNr"> 959 </span>  <span class="muComment"># stream -&gt; gap-buffer (HACK: we temporarily cannibalize the sandbox's gap-buffer)</span>
-<span id="L960" class="LineNr"> 960 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;parsing&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L960" class="LineNr"> 960 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;parsing&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L961" class="LineNr"> 961 </span>  <a href='../501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 <span id="L962" class="LineNr"> 962 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/eax: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> get self, <a href='sandbox.mu.html#L1'>sandbox</a>
 <span id="L963" class="LineNr"> 963 </span>  <span class="PreProc">var</span> data-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get <a href='sandbox.mu.html#L1'>sandbox</a>, data
 <span id="L964" class="LineNr"> 964 </span>  <span class="PreProc">var</span> data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
 <span id="L965" class="LineNr"> 965 </span>  <a href='../514gap-buffer.mu.html#L68'>load-gap-buffer-from-stream</a> data, s
-<span id="L966" class="LineNr"> 966 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;  into gap buffer&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L966" class="LineNr"> 966 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;  into gap buffer&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L967" class="LineNr"> 967 </span>  <a href='../501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 <span id="L968" class="LineNr"> 968 </span>  <a href='../106stream.subx.html#L20'>clear-stream</a> s
 <span id="L969" class="LineNr"> 969 </span>  <span class="muComment"># read: gap-buffer -&gt; cell</span>
@@ -1038,7 +1038,7 @@ if ('onhashchange' in window) {
 <span id="L973" class="LineNr"> 973 </span>  <span class="PreProc">var</span> trace/<span class="muRegEdi">edi</span>: (addr trace) <span class="Special">&lt;-</span> address trace-storage
 <span id="L974" class="LineNr"> 974 </span>  <a href='trace.mu.html#L61'>initialize-trace</a> trace, <span class="Constant">1</span>/only-errors, <span class="Constant">0x10</span>/capacity, <span class="Constant">0</span>/visible
 <span id="L975" class="LineNr"> 975 </span>  <a href='read.mu.html#L1'>read-cell</a> data, initial-root, trace
-<span id="L976" class="LineNr"> 976 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;  into s-expressions&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L976" class="LineNr"> 976 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;  into s-expressions&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L977" class="LineNr"> 977 </span>  <a href='../501draw-text.mu.html#L65'>move-cursor-to-left-margin-of-next-line</a> <span class="Constant">0</span>/screen
 <span id="L978" class="LineNr"> 978 </span>  <a href='../514gap-buffer.mu.html#L19'>clear-gap-buffer</a> data
 <span id="L979" class="LineNr"> 979 </span>  <span class="muComment">#</span>
@@ -1065,7 +1065,7 @@ if ('onhashchange' in window) {
 <span id="L1000" class="LineNr">1000 </span>    <a href='global.mu.html#L30'>load-globals</a> globals-cell-ah, globals
 <span id="L1001" class="LineNr">1001 </span>  <span class="Delimiter">}</span>
 <span id="L1002" class="LineNr">1002 </span>  <span class="muComment"># sandbox = assoc(initial-root, 'sandbox)</span>
-<span id="L1003" class="LineNr">1003 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;loading sandbox&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L1003" class="LineNr">1003 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;loading sandbox&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L1004" class="LineNr">1004 </span>  <span class="PreProc">var</span> sandbox-literal-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
 <span id="L1005" class="LineNr">1005 </span>  <span class="PreProc">var</span> sandbox-literal-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address sandbox-literal-storage
 <span id="L1006" class="LineNr">1006 </span>  <a href='cell.mu.html#L43'>new-symbol</a> sandbox-literal-ah, <span class="Constant">&quot;sandbox&quot;</span>
diff --git a/html/shell/evaluate.mu.html b/html/shell/evaluate.mu.html
index c13ce88e..0e23890a 100644
--- a/html/shell/evaluate.mu.html
+++ b/html/shell/evaluate.mu.html
@@ -83,9 +83,9 @@ if ('onhashchange' in window) {
 <span id="L17" class="LineNr">  17 </span>    <span class="PreProc">break-if-!=</span>
 <span id="L18" class="LineNr">  18 </span>    <span class="PreProc">var</span> old-x/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L19" class="LineNr">  19 </span>    <span class="PreProc">var</span> old-y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L20" class="LineNr">  20 </span>    old-x, old-y <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L174'>cursor-position</a> <span class="Constant">0</span>/screen
+<span id="L20" class="LineNr">  20 </span>    old-x, old-y <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L230'>cursor-position</a> <span class="Constant">0</span>/screen
 <span id="L21" class="LineNr">  21 </span>    <a href='../315stack-debug.subx.html#L26'>show-stack-state</a>
-<span id="L22" class="LineNr">  22 </span>    <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <span class="Constant">0</span>/screen, old-x, old-y
+<span id="L22" class="LineNr">  22 </span>    <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <span class="Constant">0</span>/screen, old-x, old-y
 <span id="L23" class="LineNr">  23 </span>  <span class="Delimiter">}</span>
 <span id="L24" class="LineNr">  24 </span>  <span class="muComment"># show intermediate progress on screen if necessary</span>
 <span id="L25" class="LineNr">  25 </span>  <span class="muComment"># treat input at the real keyboard as interrupting</span>
@@ -108,7 +108,7 @@ if ('onhashchange' in window) {
 <span id="L42" class="LineNr">  42 </span>    <span class="PreProc">var</span> screen-obj/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *screen-obj-ah
 <span id="L43" class="LineNr">  43 </span>    compare screen-obj, <span class="Constant">0</span>
 <span id="L44" class="LineNr">  44 </span>    <span class="PreProc">break-if-=</span>
-<span id="L45" class="LineNr">  45 </span>    <a href='sandbox.mu.html#L257'>render-screen</a> <span class="Constant">0</span>/screen, screen-obj, <span class="Constant">0x58</span>/xmin, <span class="Constant">2</span>/ymin
+<span id="L45" class="LineNr">  45 </span>    <a href='sandbox.mu.html#L256'>render-screen</a> <span class="Constant">0</span>/screen, screen-obj, <span class="Constant">0x58</span>/xmin, <span class="Constant">2</span>/ymin
 <span id="L46" class="LineNr">  46 </span>    <span class="PreProc">var</span> key/eax: byte <span class="Special">&lt;-</span> <a href='../102keyboard.subx.html#L21'>read-key</a> <span class="Constant">0</span>/keyboard
 <span id="L47" class="LineNr">  47 </span>    compare key, <span class="Constant">0</span>
 <span id="L48" class="LineNr">  48 </span>    <span class="PreProc">break-if-=</span>
diff --git a/html/shell/global.mu.html b/html/shell/global.mu.html
index 282cf6f8..30f5ce0c 100644
--- a/html/shell/global.mu.html
+++ b/html/shell/global.mu.html
@@ -91,7 +91,7 @@ if ('onhashchange' in window) {
 <span id="L28" class="LineNr"> 28 </span><span class="Delimiter">}</span>
 <span id="L29" class="LineNr"> 29 </span>
 <span id="L30" class="LineNr"> 30 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='global.mu.html#L30'>load-globals</a></span> in: (addr handle <a href='cell.mu.html#L1'>cell</a>), self: (addr <a href='global.mu.html#L1'>global-table</a>) <span class="Delimiter">{</span>
-<span id="L31" class="LineNr"> 31 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;loading globals:&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L31" class="LineNr"> 31 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;loading globals:&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L32" class="LineNr"> 32 </span>  <span class="PreProc">var</span> remaining-ah/<span class="muRegEsi">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy in
 <span id="L33" class="LineNr"> 33 </span>  <span class="Delimiter">{</span>
 <span id="L34" class="LineNr"> 34 </span>    <span class="PreProc">var</span> _remaining/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *remaining-ah
@@ -109,8 +109,8 @@ if ('onhashchange' in window) {
 <span id="L46" class="LineNr"> 46 </span>    <span class="PreProc">var</span> _name-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *name-data-ah
 <span id="L47" class="LineNr"> 47 </span>    <span class="PreProc">var</span> name-data/<span class="muRegEdx">edx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _name-data
 <span id="L48" class="LineNr"> 48 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> name-data
-<span id="L49" class="LineNr"> 49 </span>    <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; &quot;</span>, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
-<span id="L50" class="LineNr"> 50 </span>    <a href='../501draw-text.mu.html#L232'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, name-data, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L49" class="LineNr"> 49 </span>    <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; &quot;</span>, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
+<span id="L50" class="LineNr"> 50 </span>    <a href='../501draw-text.mu.html#L240'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, name-data, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
 <span id="L51" class="LineNr"> 51 </span>    <span class="PreProc">var</span> value-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get curr, right
 <span id="L52" class="LineNr"> 52 </span>    <span class="PreProc">var</span> value/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *value-ah
 <span id="L53" class="LineNr"> 53 </span>    <span class="PreProc">var</span> value-data-ah/eax: (addr handle stream byte) <span class="Special">&lt;-</span> get value, text-data
@@ -179,7 +179,7 @@ if ('onhashchange' in window) {
 <span id="L116" class="LineNr">116 </span>
 <span id="L117" class="LineNr">117 </span><span class="muComment"># globals layout: 1 char padding, 41 code, 1 padding, 41 code, 1 padding = 85 chars</span>
 <span id="L118" class="LineNr">118 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='global.mu.html#L118'>render-globals</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='global.mu.html#L1'>global-table</a>), show-cursor?: boolean <span class="Delimiter">{</span>
-<span id="L119" class="LineNr">119 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x55</span>/xmax, <span class="Constant">0x2f</span>/ymax=screen-height-without-menu, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L119" class="LineNr">119 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x55</span>/xmax, <span class="Constant">0x2f</span>/ymax=screen-height-without-menu, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L120" class="LineNr">120 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='global.mu.html#L1'>global-table</a>) <span class="Special">&lt;-</span> copy _self
 <span id="L121" class="LineNr">121 </span>  compare self, <span class="Constant">0</span>
 <span id="L122" class="LineNr">122 </span>  <span class="Delimiter">{</span>
@@ -269,28 +269,28 @@ if ('onhashchange' in window) {
 <span id="L206" class="LineNr">206 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='global.mu.html#L206'>render-globals-menu</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='global.mu.html#L1'>global-table</a>) <span class="Delimiter">{</span>
 <span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> _width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L209" class="LineNr">209 </span>  _width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L209" class="LineNr">209 </span>  _width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy _width
 <span id="L211" class="LineNr">211 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
 <span id="L212" class="LineNr">212 </span>  y <span class="Special">&lt;-</span> decrement
 <span id="L213" class="LineNr">213 </span>  <span class="PreProc">var</span> height/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy y
 <span id="L214" class="LineNr">214 </span>  height <span class="Special">&lt;-</span> increment
-<span id="L215" class="LineNr">215 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L216" class="LineNr">216 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
-<span id="L217" class="LineNr">217 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L218" class="LineNr">218 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L219" class="LineNr">219 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L220" class="LineNr">220 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L221" class="LineNr">221 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L222" class="LineNr">222 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L223" class="LineNr">223 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^a &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L224" class="LineNr">224 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;&lt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L225" class="LineNr">225 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^b &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L226" class="LineNr">226 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;word  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L227" class="LineNr">227 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^f &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L228" class="LineNr">228 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; word&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L229" class="LineNr">229 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^e &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L230" class="LineNr">230 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &gt;&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L215" class="LineNr">215 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L216" class="LineNr">216 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L217" class="LineNr">217 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L218" class="LineNr">218 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L219" class="LineNr">219 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L220" class="LineNr">220 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L221" class="LineNr">221 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L222" class="LineNr">222 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L223" class="LineNr">223 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^a &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L224" class="LineNr">224 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;&lt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L225" class="LineNr">225 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^b &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L226" class="LineNr">226 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;word  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L227" class="LineNr">227 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^f &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L228" class="LineNr">228 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; word&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L229" class="LineNr">229 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^e &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L230" class="LineNr">230 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &gt;&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L231" class="LineNr">231 </span><span class="Delimiter">}</span>
 <span id="L232" class="LineNr">232 </span>
 <span id="L233" class="LineNr">233 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='global.mu.html#L233'>edit-globals</a></span> _self: (addr <a href='global.mu.html#L1'>global-table</a>), key: grapheme <span class="Delimiter">{</span>
@@ -683,14 +683,14 @@ if ('onhashchange' in window) {
 <span id="L620" class="LineNr">620 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='global.mu.html#L620'>render-image-definition</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='global.mu.html#L8'>global</a>), x: int, _y: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
 <span id="L621" class="LineNr">621 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='global.mu.html#L8'>global</a>) <span class="Special">&lt;-</span> copy _self
 <span id="L622" class="LineNr">622 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy _y
-<span id="L623" class="LineNr">623 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0x20</span> <span class="Constant">0x20</span>
-<span id="L624" class="LineNr">624 </span>  <a href='../501draw-text.mu.html#L384'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">4</span>/fg <span class="Constant">0</span>/bg
+<span id="L623" class="LineNr">623 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0x20</span> <span class="Constant">0x20</span>
+<span id="L624" class="LineNr">624 </span>  <a href='../501draw-text.mu.html#L394'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">4</span>/fg <span class="Constant">0</span>/bg
 <span id="L625" class="LineNr">625 </span>  <span class="Delimiter">{</span>
 <span id="L626" class="LineNr">626 </span>    <span class="PreProc">var</span> name-ah/eax: (addr handle array byte) <span class="Special">&lt;-</span> get self, name
 <span id="L627" class="LineNr">627 </span>    <span class="PreProc">var</span> _name/eax: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *name-ah
 <span id="L628" class="LineNr">628 </span>    <span class="PreProc">var</span> name/<span class="muRegEdx">edx</span>: (addr array byte) <span class="Special">&lt;-</span> copy _name
-<span id="L629" class="LineNr">629 </span>    <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L125'>draw-text-rightward-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;define &quot;</span>, x y, <span class="Constant">7</span>/fg=definition, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L630" class="LineNr">630 </span>    x <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L125'>draw-text-rightward-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, name, x y, <span class="Constant">7</span>/fg=definition, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L629" class="LineNr">629 </span>    <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L132'>draw-text-rightward-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;define &quot;</span>, x y, <span class="Constant">7</span>/fg=definition, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L630" class="LineNr">630 </span>    x <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L132'>draw-text-rightward-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, name, x y, <span class="Constant">7</span>/fg=definition, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L631" class="LineNr">631 </span>  <span class="Delimiter">}</span>
 <span id="L632" class="LineNr">632 </span>  y <span class="Special">&lt;-</span> increment  <span class="muComment"># skip definition line</span>
 <span id="L633" class="LineNr">633 </span>  <span class="muComment"># y is now in pixels</span>
diff --git a/html/shell/infix.mu.html b/html/shell/infix.mu.html
index 94bb48ee..2f4207c2 100644
--- a/html/shell/infix.mu.html
+++ b/html/shell/infix.mu.html
@@ -323,7 +323,7 @@ if ('onhashchange' in window) {
 <span id="L312" class="LineNr">312 </span>  <span class="PreProc">var</span> buffer/<span class="muRegEdi">edi</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> address buffer-storage
 <span id="L313" class="LineNr">313 </span>  <a href='../514gap-buffer.mu.html#L11'>initialize-gap-buffer</a> buffer, <span class="Constant">0x40</span>/max-symbol-size
 <span id="L314" class="LineNr">314 </span>  <span class="muComment"># scan for first non-$</span>
-<span id="L315" class="LineNr">315 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> sym-data
+<span id="L315" class="LineNr">315 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> sym-data
 <span id="L316" class="LineNr">316 </span>  <a href='../514gap-buffer.mu.html#L441'>add-grapheme-at-gap</a> buffer, g
 <span id="L317" class="LineNr">317 </span>  <span class="Delimiter">{</span>
 <span id="L318" class="LineNr">318 </span>    compare g, <span class="Constant">0x24</span>/dollar
@@ -334,7 +334,7 @@ if ('onhashchange' in window) {
 <span id="L323" class="LineNr">323 </span>      <span class="PreProc">break-if-=</span>
 <span id="L324" class="LineNr">324 </span>      <span class="PreProc">return</span>  <span class="muComment"># symbol is all '$'s; do nothing</span>
 <span id="L325" class="LineNr">325 </span>    <span class="Delimiter">}</span>
-<span id="L326" class="LineNr">326 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> sym-data
+<span id="L326" class="LineNr">326 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> sym-data
 <span id="L327" class="LineNr">327 </span>    <a href='../514gap-buffer.mu.html#L441'>add-grapheme-at-gap</a> buffer, g
 <span id="L328" class="LineNr">328 </span>    <span class="PreProc">loop</span>
 <span id="L329" class="LineNr">329 </span>  <span class="Delimiter">}</span>
@@ -345,7 +345,7 @@ if ('onhashchange' in window) {
 <span id="L334" class="LineNr">334 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> sym-data
 <span id="L335" class="LineNr">335 </span>    compare done?, <span class="Constant">0</span>/false
 <span id="L336" class="LineNr">336 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L337" class="LineNr">337 </span>    <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> sym-data
+<span id="L337" class="LineNr">337 </span>    <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> sym-data
 <span id="L338" class="LineNr">338 </span>    <span class="Delimiter">{</span>
 <span id="L339" class="LineNr">339 </span>      <span class="PreProc">var</span> curr-operator?/eax: boolean <span class="Special">&lt;-</span> <a href='infix.mu.html#L458'>operator-grapheme?</a> g
 <span id="L340" class="LineNr">340 </span>      compare curr-operator?, operator-so-far?
@@ -432,7 +432,7 @@ if ('onhashchange' in window) {
 <span id="L421" class="LineNr">421 </span>  <span class="PreProc">var</span> _x-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *x-data-ah
 <span id="L422" class="LineNr">422 </span>  <span class="PreProc">var</span> x-data/<span class="muRegEsi">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _x-data
 <span id="L423" class="LineNr">423 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> x-data
-<span id="L424" class="LineNr">424 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> x-data
+<span id="L424" class="LineNr">424 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> x-data
 <span id="L425" class="LineNr">425 </span>  <span class="muComment"># special case: '$' is reserved for gensyms, and can work with either</span>
 <span id="L426" class="LineNr">426 </span>  <span class="muComment"># operator or non-operator symbols.</span>
 <span id="L427" class="LineNr">427 </span>  <span class="Delimiter">{</span>
@@ -445,7 +445,7 @@ if ('onhashchange' in window) {
 <span id="L434" class="LineNr">434 </span>      <span class="muComment"># '$', '$$', '$$$', etc. are regular symbols</span>
 <span id="L435" class="LineNr">435 </span>      <span class="PreProc">return</span> <span class="Constant">0</span>/false
 <span id="L436" class="LineNr">436 </span>    <span class="Delimiter">}</span>
-<span id="L437" class="LineNr">437 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> x-data
+<span id="L437" class="LineNr">437 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> x-data
 <span id="L438" class="LineNr">438 </span>    <span class="PreProc">loop</span>
 <span id="L439" class="LineNr">439 </span>  <span class="Delimiter">}</span>
 <span id="L440" class="LineNr">440 </span>  <span class="Delimiter">{</span>
@@ -460,7 +460,7 @@ if ('onhashchange' in window) {
 <span id="L449" class="LineNr">449 </span>      compare done?, <span class="Constant">0</span>/false
 <span id="L450" class="LineNr">450 </span>    <span class="Delimiter">}</span>
 <span id="L451" class="LineNr">451 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L452" class="LineNr">452 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> x-data
+<span id="L452" class="LineNr">452 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> x-data
 <span id="L453" class="LineNr">453 </span>    <span class="PreProc">loop</span>
 <span id="L454" class="LineNr">454 </span>  <span class="Delimiter">}</span>
 <span id="L455" class="LineNr">455 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
diff --git a/html/shell/macroexpand.mu.html b/html/shell/macroexpand.mu.html
index b48bb6e2..bcc56527 100644
--- a/html/shell/macroexpand.mu.html
+++ b/html/shell/macroexpand.mu.html
@@ -411,7 +411,7 @@ if ('onhashchange' in window) {
 <span id="L457" class="LineNr">457 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
 <span id="L458" class="LineNr">458 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
 <span id="L459" class="LineNr">459 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(define m (litmac litfn () (a b) `(+ ,a ,b)))&quot;</span>
-<span id="L460" class="LineNr">460 </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, globals, <span class="Constant">0</span>/no-disk
+<span id="L460" class="LineNr">460 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, globals, <span class="Constant">0</span>/no-disk
 <span id="L461" class="LineNr">461 </span>  <span class="muComment"># invoke macro</span>
 <span id="L462" class="LineNr">462 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(m 3 4)&quot;</span>
 <span id="L463" class="LineNr">463 </span>  <span class="PreProc">var</span> gap-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get <a href='sandbox.mu.html#L1'>sandbox</a>, data
@@ -450,7 +450,7 @@ if ('onhashchange' in window) {
 <span id="L496" class="LineNr">496 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
 <span id="L497" class="LineNr">497 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
 <span id="L498" class="LineNr">498 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(define m (litmac litfn () (a b) `(+ ,a ,b)))&quot;</span>
-<span id="L499" class="LineNr">499 </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, globals, <span class="Constant">0</span>/no-disk
+<span id="L499" class="LineNr">499 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, globals, <span class="Constant">0</span>/no-disk
 <span id="L500" class="LineNr">500 </span>  <span class="muComment"># invoke macro</span>
 <span id="L501" class="LineNr">501 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(fn() (m 3 4))&quot;</span>
 <span id="L502" class="LineNr">502 </span>  <span class="PreProc">var</span> gap-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get <a href='sandbox.mu.html#L1'>sandbox</a>, data
@@ -488,7 +488,7 @@ if ('onhashchange' in window) {
 <span id="L534" class="LineNr">534 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
 <span id="L535" class="LineNr">535 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
 <span id="L536" class="LineNr">536 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(define m (litmac litfn () (a b) `(+ ,a ,b)))&quot;</span>
-<span id="L537" class="LineNr">537 </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, globals, <span class="Constant">0</span>/no-disk
+<span id="L537" class="LineNr">537 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, globals, <span class="Constant">0</span>/no-disk
 <span id="L538" class="LineNr">538 </span>  <span class="muComment"># invoke macro</span>
 <span id="L539" class="LineNr">539 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;((fn() (m 3 4)))&quot;</span>
 <span id="L540" class="LineNr">540 </span>  <span class="PreProc">var</span> gap-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get <a href='sandbox.mu.html#L1'>sandbox</a>, data
@@ -557,7 +557,7 @@ if ('onhashchange' in window) {
 <span id="L603" class="LineNr">603 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
 <span id="L604" class="LineNr">604 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
 <span id="L605" class="LineNr">605 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(define m (litmac litfn () (a b) `(+ ,a ,b)))&quot;</span>
-<span id="L606" class="LineNr">606 </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, globals, <span class="Constant">0</span>/no-disk
+<span id="L606" class="LineNr">606 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, globals, <span class="Constant">0</span>/no-disk
 <span id="L607" class="LineNr">607 </span>  <span class="muComment"># invoke macro</span>
 <span id="L608" class="LineNr">608 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;`(print [result is ] ,(m 3 4)))&quot;</span>
 <span id="L609" class="LineNr">609 </span>  <span class="PreProc">var</span> gap-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get <a href='sandbox.mu.html#L1'>sandbox</a>, data
@@ -595,7 +595,7 @@ if ('onhashchange' in window) {
 <span id="L641" class="LineNr">641 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
 <span id="L642" class="LineNr">642 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
 <span id="L643" class="LineNr">643 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;(define m (litmac litfn () (a b) `(+ ,a ,b)))&quot;</span>
-<span id="L644" class="LineNr">644 </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, globals, <span class="Constant">0</span>/no-disk
+<span id="L644" class="LineNr">644 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x13</span>/ctrl-s, globals, <span class="Constant">0</span>/no-disk
 <span id="L645" class="LineNr">645 </span>  <span class="muComment"># invoke macro</span>
 <span id="L646" class="LineNr">646 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;`(a ,(m 3 4) `(b ,(m 3 4) ,,(m 3 4)))&quot;</span>
 <span id="L647" class="LineNr">647 </span>  <span class="PreProc">var</span> gap-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get <a href='sandbox.mu.html#L1'>sandbox</a>, data
diff --git a/html/shell/parenthesize.mu.html b/html/shell/parenthesize.mu.html
index 42706b41..2183542f 100644
--- a/html/shell/parenthesize.mu.html
+++ b/html/shell/parenthesize.mu.html
@@ -407,12 +407,12 @@ if ('onhashchange' in window) {
 <span id="L341" class="LineNr">341 </span>      <span class="Delimiter">{</span>
 <span id="L342" class="LineNr">342 </span>        <span class="PreProc">break-if-!=</span>
 <span id="L343" class="LineNr">343 </span>        <span class="muComment"># actual empty, but expected not empty</span>
-<span id="L344" class="LineNr">344 </span>        <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, message, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
-<span id="L345" class="LineNr">345 </span>        <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: too short\n&quot;</span>, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
+<span id="L344" class="LineNr">344 </span>        <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, message, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
+<span id="L345" class="LineNr">345 </span>        <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: too short\n&quot;</span>, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
 <span id="L346" class="LineNr">346 </span>        <a href='../104test.subx.html#L5'>count-test-failure</a>
 <span id="L347" class="LineNr">347 </span>        <span class="PreProc">return</span>
 <span id="L348" class="LineNr">348 </span>      <span class="Delimiter">}</span>
-<span id="L349" class="LineNr">349 </span>      <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L349" class="LineNr">349 </span>      <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 <span id="L350" class="LineNr">350 </span>      <span class="PreProc">return</span>
 <span id="L351" class="LineNr">351 </span>    <span class="Delimiter">}</span>
 <span id="L352" class="LineNr">352 </span>    <span class="PreProc">var</span> expected-done?/eax: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> expected
@@ -420,8 +420,8 @@ if ('onhashchange' in window) {
 <span id="L354" class="LineNr">354 </span>    <span class="Delimiter">{</span>
 <span id="L355" class="LineNr">355 </span>      <span class="PreProc">break-if-=</span>
 <span id="L356" class="LineNr">356 </span>      <span class="muComment"># actual not empty, but expected empty</span>
-<span id="L357" class="LineNr">357 </span>      <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, message, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
-<span id="L358" class="LineNr">358 </span>      <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: too long\n&quot;</span>, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
+<span id="L357" class="LineNr">357 </span>      <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, message, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
+<span id="L358" class="LineNr">358 </span>      <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: too long\n&quot;</span>, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
 <span id="L359" class="LineNr">359 </span>      <a href='../104test.subx.html#L5'>count-test-failure</a>
 <span id="L360" class="LineNr">360 </span>      <span class="PreProc">return</span>
 <span id="L361" class="LineNr">361 </span>    <span class="Delimiter">}</span>
@@ -438,7 +438,7 @@ if ('onhashchange' in window) {
 <span id="L372" class="LineNr">372 </span>    compare match?, <span class="Constant">0</span>/false
 <span id="L373" class="LineNr">373 </span>    <span class="Delimiter">{</span>
 <span id="L374" class="LineNr">374 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L375" class="LineNr">375 </span>      <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, message, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
+<span id="L375" class="LineNr">375 </span>      <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, message, <span class="Constant">3</span>/fg=cyan <span class="Constant">0</span>/bg
 <span id="L376" class="LineNr">376 </span>      <a href='../104test.subx.html#L5'>count-test-failure</a>
 <span id="L377" class="LineNr">377 </span>      <span class="PreProc">return</span>
 <span id="L378" class="LineNr">378 </span>    <span class="Delimiter">}</span>
diff --git a/html/shell/primitives.mu.html b/html/shell/primitives.mu.html
index 0b702821..3cebf0f6 100644
--- a/html/shell/primitives.mu.html
+++ b/html/shell/primitives.mu.html
@@ -137,56 +137,56 @@ if ('onhashchange' in window) {
 <span id="L72" class="LineNr">  72 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='primitives.mu.html#L72'>render-primitives</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), xmin: int, xmax: int, ymax: int <span class="Delimiter">{</span>
 <span id="L73" class="LineNr">  73 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy ymax
 <span id="L74" class="LineNr">  74 </span>  y <span class="Special">&lt;-</span> subtract <span class="Constant">0x11</span>/primitives-border
-<span id="L75" class="LineNr">  75 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, y, xmax, ymax, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L75" class="LineNr">  75 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, y, xmax, ymax, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L76" class="LineNr">  76 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L77" class="LineNr">  77 </span>  <span class="PreProc">var</span> right-min/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy xmax
 <span id="L78" class="LineNr">  78 </span>  right-min <span class="Special">&lt;-</span> subtract <span class="Constant">0x1e</span>/primitives-divider
-<span id="L79" class="LineNr">  79 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L80" class="LineNr">  80 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;primitives&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L79" class="LineNr">  79 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L80" class="LineNr">  80 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;primitives&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L81" class="LineNr">  81 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L82" class="LineNr">  82 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L83" class="LineNr">  83 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  fn <a href='evaluate.mu.html#L681'>apply</a> set if while&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L82" class="LineNr">  82 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L83" class="LineNr">  83 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  fn <a href='evaluate.mu.html#L681'>apply</a> set if while&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L84" class="LineNr">  84 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L85" class="LineNr">  85 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L86" class="LineNr">  86 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;booleans&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L85" class="LineNr">  85 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L86" class="LineNr">  86 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;booleans&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L87" class="LineNr">  87 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L88" class="LineNr">  88 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L89" class="LineNr">  89 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  = and or not&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L88" class="LineNr">  88 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L89" class="LineNr">  89 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  = and or not&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L90" class="LineNr">  90 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L91" class="LineNr">  91 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L92" class="LineNr">  92 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;lists&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L91" class="LineNr">  91 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L92" class="LineNr">  92 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;lists&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L93" class="LineNr">  93 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L94" class="LineNr">  94 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L95" class="LineNr">  95 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  cons <a href='evaluate.mu.html#L1237'>car</a> <a href='evaluate.mu.html#L1265'>cdr</a> no cons? len&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L94" class="LineNr">  94 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L95" class="LineNr">  95 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  cons <a href='evaluate.mu.html#L1237'>car</a> <a href='evaluate.mu.html#L1265'>cdr</a> no cons? len&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L96" class="LineNr">  96 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L97" class="LineNr">  97 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L98" class="LineNr">  98 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;numbers&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L97" class="LineNr">  97 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L98" class="LineNr">  98 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;numbers&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L99" class="LineNr">  99 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L100" class="LineNr"> 100 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L101" class="LineNr"> 101 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  + - * / %&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L100" class="LineNr"> 100 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L101" class="LineNr"> 101 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  + - * / %&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L102" class="LineNr"> 102 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L103" class="LineNr"> 103 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L104" class="LineNr"> 104 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  &lt; &gt; &lt;= &gt;=&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L103" class="LineNr"> 103 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L104" class="LineNr"> 104 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  &lt; &gt; &lt;= &gt;=&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L105" class="LineNr"> 105 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L106" class="LineNr"> 106 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L107" class="LineNr"> 107 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  sqrt <a href='../506math.mu.html#L1'>abs</a> sgn&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L106" class="LineNr"> 106 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L107" class="LineNr"> 107 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  sqrt <a href='../506math.mu.html#L1'>abs</a> sgn&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L108" class="LineNr"> 108 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L109" class="LineNr"> 109 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L110" class="LineNr"> 110 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;arrays&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L109" class="LineNr"> 109 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L110" class="LineNr"> 110 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;arrays&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L111" class="LineNr"> 111 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L112" class="LineNr"> 112 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L113" class="LineNr"> 113 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  array index iset len&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L112" class="LineNr"> 112 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L113" class="LineNr"> 113 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  array index iset len&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L114" class="LineNr"> 114 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L115" class="LineNr"> 115 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy right-min
-<span id="L116" class="LineNr"> 116 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  populate&quot;</span>, tmpx, xmax, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L117" class="LineNr"> 117 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: int _ -&gt; array&quot;</span>, tmpx, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L116" class="LineNr"> 116 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  populate&quot;</span>, tmpx, xmax, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L117" class="LineNr"> 117 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: int _ -&gt; array&quot;</span>, tmpx, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L118" class="LineNr"> 118 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L119" class="LineNr"> 119 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
-<span id="L120" class="LineNr"> 120 </span>  <a href='../501draw-text.mu.html#L261'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;images&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L119" class="LineNr"> 119 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, right-min, y
+<span id="L120" class="LineNr"> 120 </span>  <a href='../501draw-text.mu.html#L269'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;images&quot;</span>, right-min, y, xmax, ymax, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L121" class="LineNr"> 121 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L122" class="LineNr"> 122 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy right-min
-<span id="L123" class="LineNr"> 123 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  img&quot;</span>, tmpx, xmax, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L124" class="LineNr"> 124 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> stream x y w h&quot;</span>, tmpx, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L123" class="LineNr"> 123 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  img&quot;</span>, tmpx, xmax, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L124" class="LineNr"> 124 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> stream x y w h&quot;</span>, tmpx, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L125" class="LineNr"> 125 </span><span class="CommentedCode">#?   {</span>
 <span id="L126" class="LineNr"> 126 </span><span class="CommentedCode">#?     compare screen, 0</span>
 <span id="L127" class="LineNr"> 127 </span><span class="CommentedCode">#?     break-if-!=</span>
@@ -199,64 +199,64 @@ if ('onhashchange' in window) {
 <span id="L134" class="LineNr"> 134 </span>  <span class="PreProc">var</span> left-max/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy xmax
 <span id="L135" class="LineNr"> 135 </span>  left-max <span class="Special">&lt;-</span> subtract <span class="Constant">0x20</span>/primitives-divider
 <span id="L136" class="LineNr"> 136 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L137" class="LineNr"> 137 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;cursor graphics&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L137" class="LineNr"> 137 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;cursor graphics&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L138" class="LineNr"> 138 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L139" class="LineNr"> 139 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L140" class="LineNr"> 140 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  print&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L141" class="LineNr"> 141 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> _ -&gt; _&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L140" class="LineNr"> 140 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  print&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L141" class="LineNr"> 141 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> _ -&gt; _&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L142" class="LineNr"> 142 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L143" class="LineNr"> 143 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L144" class="LineNr"> 144 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  lines columns&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L145" class="LineNr"> 145 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> -&gt; number&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L144" class="LineNr"> 144 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  lines columns&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L145" class="LineNr"> 145 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> -&gt; number&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L146" class="LineNr"> 146 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L147" class="LineNr"> 147 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L148" class="LineNr"> 148 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  up down left right&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L149" class="LineNr"> 149 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: screen&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L148" class="LineNr"> 148 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  up down left right&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L149" class="LineNr"> 149 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: screen&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L150" class="LineNr"> 150 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L151" class="LineNr"> 151 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L152" class="LineNr"> 152 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  cr&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L153" class="LineNr"> 153 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a>   &quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L154" class="LineNr"> 154 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;# move cursor down and to left margin&quot;</span>, tmpx, left-max, y, <span class="Constant">0x38</span>/fg=trace, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L152" class="LineNr"> 152 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  cr&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L153" class="LineNr"> 153 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a>   &quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L154" class="LineNr"> 154 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;# move cursor down and to left margin&quot;</span>, tmpx, left-max, y, <span class="Constant">0x38</span>/fg=trace, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L155" class="LineNr"> 155 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L156" class="LineNr"> 156 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L157" class="LineNr"> 157 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;pixel graphics&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L157" class="LineNr"> 157 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;pixel graphics&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L158" class="LineNr"> 158 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L159" class="LineNr"> 159 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L160" class="LineNr"> 160 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  circle bezier line hline vline pixel&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L160" class="LineNr"> 160 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  circle bezier line hline vline pixel&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L161" class="LineNr"> 161 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L162" class="LineNr"> 162 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L163" class="LineNr"> 163 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  width height&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L164" class="LineNr"> 164 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> -&gt; number&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L163" class="LineNr"> 163 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  width height&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L164" class="LineNr"> 164 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: <a href='../500fake-screen.mu.html#L14'>screen</a> -&gt; number&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L165" class="LineNr"> 165 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L166" class="LineNr"> 166 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L167" class="LineNr"> 167 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  clear&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L168" class="LineNr"> 168 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: screen&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L167" class="LineNr"> 167 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  clear&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L168" class="LineNr"> 168 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: screen&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L169" class="LineNr"> 169 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L170" class="LineNr"> 170 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L171" class="LineNr"> 171 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;input&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L171" class="LineNr"> 171 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;input&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L172" class="LineNr"> 172 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L173" class="LineNr"> 173 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L174" class="LineNr"> 174 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  key&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L175" class="LineNr"> 175 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: keyboard -&gt; grapheme?&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L174" class="LineNr"> 174 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  key&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L175" class="LineNr"> 175 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: keyboard -&gt; grapheme?&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L176" class="LineNr"> 176 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L177" class="LineNr"> 177 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L178" class="LineNr"> 178 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;streams&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L178" class="LineNr"> 178 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;streams&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L179" class="LineNr"> 179 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L180" class="LineNr"> 180 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L181" class="LineNr"> 181 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  stream&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L182" class="LineNr"> 182 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: -&gt; stream &quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L181" class="LineNr"> 181 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  stream&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L182" class="LineNr"> 182 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: -&gt; stream &quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L183" class="LineNr"> 183 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L184" class="LineNr"> 184 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L185" class="LineNr"> 185 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  write&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L186" class="LineNr"> 186 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: stream grapheme -&gt; stream&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L185" class="LineNr"> 185 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  write&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L186" class="LineNr"> 186 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: stream grapheme -&gt; stream&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L187" class="LineNr"> 187 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L188" class="LineNr"> 188 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L189" class="LineNr"> 189 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  rewind clear&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L190" class="LineNr"> 190 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: stream&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L189" class="LineNr"> 189 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  rewind clear&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L190" class="LineNr"> 190 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: stream&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <span id="L191" class="LineNr"> 191 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L192" class="LineNr"> 192 </span>  <span class="PreProc">var</span> tmpx/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L193" class="LineNr"> 193 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  read&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
-<span id="L194" class="LineNr"> 194 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: stream -&gt; grapheme&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L193" class="LineNr"> 193 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;  read&quot;</span>, tmpx, left-max, y, <span class="Constant">0x2a</span>/fg=orange, <span class="Constant">0xdc</span>/bg=green-bg
+<span id="L194" class="LineNr"> 194 </span>  tmpx <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;: stream -&gt; grapheme&quot;</span>, tmpx, left-max, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xdc</span>/bg=green-bg
 <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="muFunction"><a href='primitives.mu.html#L197'>primitive-global?</a></span> _x: (addr <a href='global.mu.html#L8'>global</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>
@@ -1836,7 +1836,7 @@ if ('onhashchange' in window) {
 <span id="L1771" class="LineNr">1771 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
 <span id="L1772" class="LineNr">1772 </span>  <span class="PreProc">var</span> stream/<span class="muRegEdi">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> address stream-storage
 <span id="L1773" class="LineNr">1773 </span>  <a href='print.mu.html#L7'>print-cell</a> second-ah, stream, trace
-<span id="L1774" class="LineNr">1774 </span>  <a href='../501draw-text.mu.html#L232'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, stream, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
+<span id="L1774" class="LineNr">1774 </span>  <a href='../501draw-text.mu.html#L240'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, stream, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
 <span id="L1775" class="LineNr">1775 </span>  <span class="muComment"># return what was printed</span>
 <span id="L1776" class="LineNr">1776 </span>  copy-object second-ah, out
 <span id="L1777" class="LineNr">1777 </span><span class="Delimiter">}</span>
@@ -1879,7 +1879,7 @@ if ('onhashchange' in window) {
 <span id="L1814" class="LineNr">1814 </span>    <span class="PreProc">var</span> screen-ah/eax: (addr handle <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> get first, screen-data
 <span id="L1815" class="LineNr">1815 </span>    <span class="PreProc">var</span> _screen/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *screen-ah
 <span id="L1816" class="LineNr">1816 </span>    <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEcx">ecx</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _screen
-<span id="L1817" class="LineNr">1817 </span>    <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1817" class="LineNr">1817 </span>    <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1818" class="LineNr">1818 </span>    <span class="PreProc">return</span>
 <span id="L1819" class="LineNr">1819 </span>  <span class="Delimiter">}</span>
 <span id="L1820" class="LineNr">1820 </span>  <span class="Special"><a href='trace.mu.html#L197'>error</a></span> trace, <span class="Constant">&quot;first arg for 'clear' is not a <a href='../500fake-screen.mu.html#L14'>screen</a> or a stream&quot;</span>
@@ -2184,7 +2184,7 @@ if ('onhashchange' in window) {
 <span id="L2119" class="LineNr">2119 </span>  <span class="Delimiter">}</span>
 <span id="L2120" class="LineNr">2120 </span>  <span class="PreProc">var</span> fourth-value/eax: (addr float) <span class="Special">&lt;-</span> get fourth, number-data
 <span id="L2121" class="LineNr">2121 </span>  <span class="PreProc">var</span> color/eax: int <span class="Special">&lt;-</span> convert *fourth-value
-<span id="L2122" class="LineNr">2122 </span>  <a href='../500fake-screen.mu.html#L483'>pixel</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, x, y, color
+<span id="L2122" class="LineNr">2122 </span>  <a href='../500fake-screen.mu.html#L557'>pixel</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, x, y, color
 <span id="L2123" class="LineNr">2123 </span>  <span class="muComment"># return nothing</span>
 <span id="L2124" class="LineNr">2124 </span><span class="Delimiter">}</span>
 <span id="L2125" class="LineNr">2125 </span>
@@ -3193,7 +3193,7 @@ if ('onhashchange' in window) {
 <span id="L3128" class="LineNr">3128 </span>  <span class="PreProc">var</span> x-float/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> copy *second-value
 <span id="L3129" class="LineNr">3129 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> convert x-float
 <span id="L3130" class="LineNr">3130 </span>  <span class="PreProc">var</span> x-grapheme/eax: grapheme <span class="Special">&lt;-</span> copy x
-<span id="L3131" class="LineNr">3131 </span>  <a href='../403unicode.mu.html#L176'>write-grapheme</a> stream-data, x-grapheme
+<span id="L3131" class="LineNr">3131 </span>  <a href='../403unicode.mu.html#L339'>write-grapheme</a> stream-data, x-grapheme
 <span id="L3132" class="LineNr">3132 </span>  <span class="muComment"># return the stream</span>
 <span id="L3133" class="LineNr">3133 </span>  copy-object first-ah, out
 <span id="L3134" class="LineNr">3134 </span><span class="Delimiter">}</span>
@@ -3267,7 +3267,7 @@ if ('onhashchange' in window) {
 <span id="L3202" class="LineNr">3202 </span>  <span class="PreProc">var</span> _stream-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *stream-data-ah
 <span id="L3203" class="LineNr">3203 </span>  <span class="PreProc">var</span> stream-data/<span class="muRegEbx">ebx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _stream-data
 <span id="L3204" class="LineNr">3204 </span><span class="CommentedCode">#?   rewind-stream stream-data</span>
-<span id="L3205" class="LineNr">3205 </span>  <span class="PreProc">var</span> result-grapheme/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> stream-data
+<span id="L3205" class="LineNr">3205 </span>  <span class="PreProc">var</span> result-grapheme/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> stream-data
 <span id="L3206" class="LineNr">3206 </span>  <span class="PreProc">var</span> result/eax: int <span class="Special">&lt;-</span> copy result-grapheme
 <span id="L3207" class="LineNr">3207 </span>  <a href='cell.mu.html#L99'>new-integer</a> out, result
 <span id="L3208" class="LineNr">3208 </span><span class="Delimiter">}</span>
@@ -3307,7 +3307,7 @@ if ('onhashchange' in window) {
 <span id="L3242" class="LineNr">3242 </span>  <span class="muComment"># compute dimensions</span>
 <span id="L3243" class="LineNr">3243 </span>  <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L3244" class="LineNr">3244 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L3245" class="LineNr">3245 </span>  dummy, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L3245" class="LineNr">3245 </span>  dummy, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L3246" class="LineNr">3246 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> convert height
 <span id="L3247" class="LineNr">3247 </span>  <a href='cell.mu.html#L112'>new-float</a> out, result
 <span id="L3248" class="LineNr">3248 </span><span class="Delimiter">}</span>
@@ -3347,7 +3347,7 @@ if ('onhashchange' in window) {
 <span id="L3282" class="LineNr">3282 </span>  <span class="muComment"># compute dimensions</span>
 <span id="L3283" class="LineNr">3283 </span>  <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L3284" class="LineNr">3284 </span>  <span class="PreProc">var</span> dummy/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L3285" class="LineNr">3285 </span>  width, dummy <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L3285" class="LineNr">3285 </span>  width, dummy <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L3286" class="LineNr">3286 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> convert width
 <span id="L3287" class="LineNr">3287 </span>  <a href='cell.mu.html#L112'>new-float</a> out, result
 <span id="L3288" class="LineNr">3288 </span><span class="Delimiter">}</span>
@@ -3387,7 +3387,7 @@ if ('onhashchange' in window) {
 <span id="L3322" class="LineNr">3322 </span>  <span class="muComment"># compute dimensions</span>
 <span id="L3323" class="LineNr">3323 </span>  <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L3324" class="LineNr">3324 </span>  <span class="PreProc">var</span> dummy/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L3325" class="LineNr">3325 </span>  width, dummy <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L3325" class="LineNr">3325 </span>  width, dummy <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L3326" class="LineNr">3326 </span>  width <span class="Special">&lt;-</span> shift-left <span class="Constant">3</span>/log2-font-width
 <span id="L3327" class="LineNr">3327 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> convert width
 <span id="L3328" class="LineNr">3328 </span>  <a href='cell.mu.html#L112'>new-float</a> out, result
@@ -3428,7 +3428,7 @@ if ('onhashchange' in window) {
 <span id="L3363" class="LineNr">3363 </span>  <span class="muComment"># compute dimensions</span>
 <span id="L3364" class="LineNr">3364 </span>  <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L3365" class="LineNr">3365 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L3366" class="LineNr">3366 </span>  dummy, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L3366" class="LineNr">3366 </span>  dummy, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L3367" class="LineNr">3367 </span>  height <span class="Special">&lt;-</span> shift-left <span class="Constant">4</span>/log2-font-height
 <span id="L3368" class="LineNr">3368 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special">&lt;-</span> convert height
 <span id="L3369" class="LineNr">3369 </span>  <a href='cell.mu.html#L112'>new-float</a> out, result
@@ -3558,8 +3558,8 @@ if ('onhashchange' in window) {
 <span id="L3493" class="LineNr">3493 </span>  <span class="PreProc">var</span> dest-ah/eax: (addr handle <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> get second, screen-data
 <span id="L3494" class="LineNr">3494 </span>  <span class="PreProc">var</span> dest/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *dest-ah
 <span id="L3495" class="LineNr">3495 </span>  <span class="muComment">#</span>
-<span id="L3496" class="LineNr">3496 </span>  <a href='../500fake-screen.mu.html#L588'>convert-graphemes-to-pixels</a> src
-<span id="L3497" class="LineNr">3497 </span>  <a href='../500fake-screen.mu.html#L548'>copy-pixels</a> src, dest
+<span id="L3496" class="LineNr">3496 </span>  <a href='../500fake-screen.mu.html#L660'>convert-screen-cells-to-pixels</a> src
+<span id="L3497" class="LineNr">3497 </span>  <a href='../500fake-screen.mu.html#L620'>copy-pixels</a> src, dest
 <span id="L3498" class="LineNr">3498 </span><span class="Delimiter">}</span>
 <span id="L3499" class="LineNr">3499 </span>
 <span id="L3500" class="LineNr">3500 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='primitives.mu.html#L3500'>apply-array</a></span> _args-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), _out-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace) <span class="Delimiter">{</span>
diff --git a/html/shell/print.mu.html b/html/shell/print.mu.html
index a48d11b2..ee9331b1 100644
--- a/html/shell/print.mu.html
+++ b/html/shell/print.mu.html
@@ -230,7 +230,7 @@ if ('onhashchange' in window) {
 <span id="L167" class="LineNr">167 </span>  <a href='print.mu.html#L7'>print-cell</a> in-ah, stream, trace
 <span id="L168" class="LineNr">168 </span>  <span class="PreProc">var</span> d1/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L169" class="LineNr">169 </span>  <span class="PreProc">var</span> d2/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L170" class="LineNr">170 </span>  d1, d2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L199'>draw-stream-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, stream, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x80</span>/xmax, <span class="Constant">0x30</span>/ymax, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L170" class="LineNr">170 </span>  d1, d2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L206'>draw-stream-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, stream, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x80</span>/xmax, <span class="Constant">0x30</span>/ymax, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L171" class="LineNr">171 </span><span class="Delimiter">}</span>
 <span id="L172" class="LineNr">172 </span>
 <span id="L173" class="LineNr">173 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L173'>dump-cell-from-cursor-over-full-screen</a></span> in-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), fg: int, bg: int <span class="Delimiter">{</span>
@@ -240,7 +240,7 @@ if ('onhashchange' in window) {
 <span id="L177" class="LineNr">177 </span>  <span class="PreProc">var</span> trace/<span class="muRegEdi">edi</span>: (addr trace) <span class="Special">&lt;-</span> address trace-storage
 <span id="L178" class="LineNr">178 </span>  <a href='trace.mu.html#L61'>initialize-trace</a> trace, <span class="Constant">1</span>/only-errors, <span class="Constant">0x10</span>/capacity, <span class="Constant">0</span>/visible
 <span id="L179" class="LineNr">179 </span>  <a href='print.mu.html#L7'>print-cell</a> in-ah, stream, trace
-<span id="L180" class="LineNr">180 </span>  <a href='../501draw-text.mu.html#L232'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, stream, fg, bg
+<span id="L180" class="LineNr">180 </span>  <a href='../501draw-text.mu.html#L240'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, stream, fg, bg
 <span id="L181" class="LineNr">181 </span><span class="Delimiter">}</span>
 <span id="L182" class="LineNr">182 </span>
 <span id="L183" class="LineNr">183 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='print.mu.html#L183'>print-symbol</a></span> _in: (addr <a href='cell.mu.html#L1'>cell</a>), out: (addr stream byte), trace: (addr trace) <span class="Delimiter">{</span>
diff --git a/html/shell/sandbox.mu.html b/html/shell/sandbox.mu.html
index 439b5d22..8bfec442 100644
--- a/html/shell/sandbox.mu.html
+++ b/html/shell/sandbox.mu.html
@@ -144,7 +144,7 @@ if ('onhashchange' in window) {
 <span id="L79" class="LineNr">  79 </span><span class="muComment">##</span>
 <span id="L80" class="LineNr">  80 </span>
 <span id="L81" class="LineNr">  81 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L81'>render-sandbox</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), xmin: int, ymin: int, xmax: int, ymax: int, show-cursor?: boolean <span class="Delimiter">{</span>
-<span id="L82" class="LineNr">  82 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, ymin, xmax, ymax, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L82" class="LineNr">  82 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, ymin, xmax, ymax, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L83" class="LineNr">  83 </span>  add-to xmin, <span class="Constant">1</span>/padding-left
 <span id="L84" class="LineNr">  84 </span>  add-to ymin, <span class="Constant">1</span>/padding-top
 <span id="L85" class="LineNr">  85 </span>  subtract-from xmax, <span class="Constant">1</span>/padding-right
@@ -156,7 +156,7 @@ if ('onhashchange' in window) {
 <span id="L91" class="LineNr">  91 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy xmin
 <span id="L92" class="LineNr">  92 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
 <span id="L93" class="LineNr">  93 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L171'>maybe-render-empty-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
-<span id="L94" class="LineNr">  94 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L337'>maybe-render-keyboard</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
+<span id="L94" class="LineNr">  94 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L336'>maybe-render-keyboard</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
 <span id="L95" class="LineNr">  95 </span>  <span class="PreProc">var</span> cursor-in-editor?/<span class="muRegEbx">ebx</span>: boolean <span class="Special">&lt;-</span> copy show-cursor?
 <span id="L96" class="LineNr">  96 </span>  <span class="Delimiter">{</span>
 <span id="L97" class="LineNr">  97 </span>    compare cursor-in-editor?, <span class="Constant">0</span>/false
@@ -184,9 +184,9 @@ if ('onhashchange' in window) {
 <span id="L119" class="LineNr"> 119 </span>    compare done?, <span class="Constant">0</span>/false
 <span id="L120" class="LineNr"> 120 </span>    <span class="PreProc">break-if-!=</span>
 <span id="L121" class="LineNr"> 121 </span>    <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L122" class="LineNr"> 122 </span>    x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L174'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;=&gt; &quot;</span>, xmin, y, xmax, ymax, xmin, y, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L122" class="LineNr"> 122 </span>    x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L181'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;=&gt; &quot;</span>, xmin, y, xmax, ymax, xmin, y, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L123" class="LineNr"> 123 </span>    <span class="PreProc">var</span> x2/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy x
-<span id="L124" class="LineNr"> 124 </span>    <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L111'>draw-stream-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, value, x2, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L124" class="LineNr"> 124 </span>    <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L117'>draw-stream-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, value, x2, xmax, y, <span class="Constant">7</span>/fg=grey, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L125" class="LineNr"> 125 </span>  <span class="Delimiter">}</span>
 <span id="L126" class="LineNr"> 126 </span>  y <span class="Special">&lt;-</span> add <span class="Constant">2</span>  <span class="muComment"># padding</span>
 <span id="L127" class="LineNr"> 127 </span>  <a href='sandbox.mu.html#L198'>maybe-render-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
@@ -198,7 +198,7 @@ if ('onhashchange' in window) {
 <span id="L133" class="LineNr"> 133 </span>  compare *cursor-in-data?, <span class="Constant">0</span>/false
 <span id="L134" class="LineNr"> 134 </span>  <span class="Delimiter">{</span>
 <span id="L135" class="LineNr"> 135 </span>    <span class="PreProc">break-if-=</span>
-<span id="L136" class="LineNr"> 136 </span>    <a href='sandbox.mu.html#L393'>render-sandbox-edit-menu</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self
+<span id="L136" class="LineNr"> 136 </span>    <a href='sandbox.mu.html#L392'>render-sandbox-edit-menu</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self
 <span id="L137" class="LineNr"> 137 </span>    <span class="PreProc">return</span>
 <span id="L138" class="LineNr"> 138 </span>  <span class="Delimiter">}</span>
 <span id="L139" class="LineNr"> 139 </span>  <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
@@ -212,7 +212,7 @@ if ('onhashchange' in window) {
 <span id="L147" class="LineNr"> 147 </span>  compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
 <span id="L148" class="LineNr"> 148 </span>  <span class="Delimiter">{</span>
 <span id="L149" class="LineNr"> 149 </span>    <span class="PreProc">break-if-=</span>
-<span id="L150" class="LineNr"> 150 </span>    <a href='sandbox.mu.html#L433'>render-keyboard-menu</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L150" class="LineNr"> 150 </span>    <a href='sandbox.mu.html#L432'>render-keyboard-menu</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L151" class="LineNr"> 151 </span>    <span class="PreProc">return</span>
 <span id="L152" class="LineNr"> 152 </span>  <span class="Delimiter">}</span>
 <span id="L153" class="LineNr"> 153 </span><span class="Delimiter">}</span>
@@ -226,11 +226,11 @@ if ('onhashchange' in window) {
 <span id="L161" class="LineNr"> 161 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy xmin
 <span id="L162" class="LineNr"> 162 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
 <span id="L163" class="LineNr"> 163 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L171'>maybe-render-empty-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
-<span id="L164" class="LineNr"> 164 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L337'>maybe-render-keyboard</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
+<span id="L164" class="LineNr"> 164 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L336'>maybe-render-keyboard</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, self, xmin, y
 <span id="L165" class="LineNr"> 165 </span>  <span class="PreProc">var</span> cursor-in-sandbox?/<span class="muRegEbx">ebx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
 <span id="L166" class="LineNr"> 166 </span>  x, y <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L386'>render-gap-buffer-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, data, x, y, xmax, ymax, *cursor-in-sandbox?, <span class="Constant">3</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L167" class="LineNr"> 167 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L168" class="LineNr"> 168 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, y, xmax, ymax, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L168" class="LineNr"> 168 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, y, xmax, ymax, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L169" class="LineNr"> 169 </span><span class="Delimiter">}</span>
 <span id="L170" class="LineNr"> 170 </span>
 <span id="L171" class="LineNr"> 171 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L171'>maybe-render-empty-screen</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), xmin: int, ymin: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
@@ -252,7 +252,7 @@ if ('onhashchange' in window) {
 <span id="L187" class="LineNr"> 187 </span>  <span class="PreProc">var</span> screen-obj-ah/eax: (addr handle <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> get screen-obj-cell, screen-data
 <span id="L188" class="LineNr"> 188 </span>  <span class="PreProc">var</span> _screen-obj/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *screen-obj-ah
 <span id="L189" class="LineNr"> 189 </span>  <span class="PreProc">var</span> screen-obj/<span class="muRegEdx">edx</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _screen-obj
-<span id="L190" class="LineNr"> 190 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;screen:   &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, y, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L190" class="LineNr"> 190 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;screen:   &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, y, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L191" class="LineNr"> 191 </span>  x <span class="Special">&lt;-</span> copy xmin
 <span id="L192" class="LineNr"> 192 </span>  x <span class="Special">&lt;-</span> add <span class="Constant">2</span>
 <span id="L193" class="LineNr"> 193 </span>  y <span class="Special">&lt;-</span> increment
@@ -279,17 +279,17 @@ if ('onhashchange' in window) {
 <span id="L214" class="LineNr"> 214 </span>  <span class="PreProc">var</span> _screen-obj/eax: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *screen-obj-ah
 <span id="L215" class="LineNr"> 215 </span>  <span class="PreProc">var</span> screen-obj/<span class="muRegEdx">edx</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _screen-obj
 <span id="L216" class="LineNr"> 216 </span>  <span class="Delimiter">{</span>
-<span id="L217" class="LineNr"> 217 </span>    <span class="PreProc">var</span> screen-empty?/eax: boolean <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L294'>fake-screen-empty?</a> screen-obj
+<span id="L217" class="LineNr"> 217 </span>    <span class="PreProc">var</span> screen-empty?/eax: boolean <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L350'>fake-screen-empty?</a> screen-obj
 <span id="L218" class="LineNr"> 218 </span>    compare screen-empty?, <span class="Constant">0</span>/false
 <span id="L219" class="LineNr"> 219 </span>    <span class="PreProc">break-if-=</span>
 <span id="L220" class="LineNr"> 220 </span>    <span class="PreProc">return</span>
 <span id="L221" class="LineNr"> 221 </span>  <span class="Delimiter">}</span>
-<span id="L222" class="LineNr"> 222 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;screen:   &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, ymin, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L222" class="LineNr"> 222 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;screen:   &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, ymin, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L223" class="LineNr"> 223 </span>  x <span class="Special">&lt;-</span> copy xmin
 <span id="L224" class="LineNr"> 224 </span>  x <span class="Special">&lt;-</span> add <span class="Constant">2</span>
 <span id="L225" class="LineNr"> 225 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
 <span id="L226" class="LineNr"> 226 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L227" class="LineNr"> 227 </span>  <a href='sandbox.mu.html#L257'>render-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, screen-obj, x, y
+<span id="L227" class="LineNr"> 227 </span>  <a href='sandbox.mu.html#L256'>render-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, screen-obj, x, y
 <span id="L228" class="LineNr"> 228 </span><span class="Delimiter">}</span>
 <span id="L229" class="LineNr"> 229 </span>
 <span id="L230" class="LineNr"> 230 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L230'>render-empty-screen</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _target-screen: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), xmin: int, ymin: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
@@ -301,934 +301,933 @@ if ('onhashchange' in window) {
 <span id="L236" class="LineNr"> 236 </span>  <span class="Delimiter">{</span>
 <span id="L237" class="LineNr"> 237 </span>    compare y, *height
 <span id="L238" class="LineNr"> 238 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L239" class="LineNr"> 239 </span>    <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, screen-y
+<span id="L239" class="LineNr"> 239 </span>    <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, xmin, screen-y
 <span id="L240" class="LineNr"> 240 </span>    <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
 <span id="L241" class="LineNr"> 241 </span>    <span class="PreProc">var</span> x/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L242" class="LineNr"> 242 </span>    <span class="Delimiter">{</span>
 <span id="L243" class="LineNr"> 243 </span>      compare x, *width
 <span id="L244" class="LineNr"> 244 </span>      <span class="PreProc">break-if-&gt;=</span>
-<span id="L245" class="LineNr"> 245 </span>      <a href='../501draw-text.mu.html#L92'>draw-code-point-at-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x20</span>/space, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
-<span id="L246" class="LineNr"> 246 </span>      <a href='../501draw-text.mu.html#L16'>move-cursor-right</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L247" class="LineNr"> 247 </span>      x <span class="Special">&lt;-</span> increment
-<span id="L248" class="LineNr"> 248 </span>      <span class="PreProc">loop</span>
-<span id="L249" class="LineNr"> 249 </span>    <span class="Delimiter">}</span>
-<span id="L250" class="LineNr"> 250 </span>    y <span class="Special">&lt;-</span> increment
-<span id="L251" class="LineNr"> 251 </span>    screen-y <span class="Special">&lt;-</span> increment
-<span id="L252" class="LineNr"> 252 </span>    <span class="PreProc">loop</span>
-<span id="L253" class="LineNr"> 253 </span>  <span class="Delimiter">}</span>
-<span id="L254" class="LineNr"> 254 </span>  <span class="PreProc">return</span> screen-y
-<span id="L255" class="LineNr"> 255 </span><span class="Delimiter">}</span>
-<span id="L256" class="LineNr"> 256 </span>
-<span id="L257" class="LineNr"> 257 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L257'>render-screen</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _target-screen: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), xmin: int, ymin: int <span class="Delimiter">{</span>
-<span id="L258" class="LineNr"> 258 </span>  <span class="PreProc">var</span> target-screen/<span class="muRegEsi">esi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _target-screen
-<span id="L259" class="LineNr"> 259 </span>  <a href='../500fake-screen.mu.html#L588'>convert-graphemes-to-pixels</a> target-screen  <span class="muComment"># might overwrite existing pixel data with graphemes</span>
-<span id="L260" class="LineNr"> 260 </span>                                             <span class="muComment"># overlapping the two is not supported</span>
-<span id="L261" class="LineNr"> 261 </span>  <span class="muComment"># pixel data</span>
-<span id="L262" class="LineNr"> 262 </span>  <span class="Delimiter">{</span>
-<span id="L263" class="LineNr"> 263 </span>    <span class="muComment"># screen top left pixels x y width height</span>
-<span id="L264" class="LineNr"> 264 </span>    <span class="PreProc">var</span> tmp/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L265" class="LineNr"> 265 </span>    tmp <span class="Special">&lt;-</span> shift-left <span class="Constant">3</span>/log2-font-width
-<span id="L266" class="LineNr"> 266 </span>    <span class="PreProc">var</span> left: int
-<span id="L267" class="LineNr"> 267 </span>    copy-to left, tmp
-<span id="L268" class="LineNr"> 268 </span>    tmp <span class="Special">&lt;-</span> copy ymin
-<span id="L269" class="LineNr"> 269 </span>    tmp <span class="Special">&lt;-</span> shift-left <span class="Constant">4</span>/log2-font-height
-<span id="L270" class="LineNr"> 270 </span>    <span class="PreProc">var</span> top: int
-<span id="L271" class="LineNr"> 271 </span>    copy-to top, tmp
-<span id="L272" class="LineNr"> 272 </span>    <span class="PreProc">var</span> pixels-ah/eax: (addr handle array byte) <span class="Special">&lt;-</span> get target-screen, pixels
-<span id="L273" class="LineNr"> 273 </span>    <span class="PreProc">var</span> _pixels/eax: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *pixels-ah
-<span id="L274" class="LineNr"> 274 </span>    <span class="PreProc">var</span> pixels/<span class="muRegEdi">edi</span>: (addr array byte) <span class="Special">&lt;-</span> copy _pixels
-<span id="L275" class="LineNr"> 275 </span>    compare pixels, <span class="Constant">0</span>
-<span id="L276" class="LineNr"> 276 </span>    <span class="PreProc">break-if-=</span>
-<span id="L277" class="LineNr"> 277 </span>    <span class="PreProc">var</span> y/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L278" class="LineNr"> 278 </span>    <span class="PreProc">var</span> height-addr/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, height
-<span id="L279" class="LineNr"> 279 </span>    <span class="PreProc">var</span> height/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy *height-addr
-<span id="L280" class="LineNr"> 280 </span>    height <span class="Special">&lt;-</span> shift-left <span class="Constant">4</span>/log2-font-height
-<span id="L281" class="LineNr"> 281 </span>    <span class="Delimiter">{</span>
-<span id="L282" class="LineNr"> 282 </span>      compare y, height
-<span id="L283" class="LineNr"> 283 </span>      <span class="PreProc">break-if-&gt;=</span>
-<span id="L284" class="LineNr"> 284 </span>      <span class="PreProc">var</span> width-addr/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
-<span id="L285" class="LineNr"> 285 </span>      <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy *width-addr
-<span id="L286" class="LineNr"> 286 </span>      width <span class="Special">&lt;-</span> shift-left <span class="Constant">3</span>/log2-font-width
-<span id="L287" class="LineNr"> 287 </span>      <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L288" class="LineNr"> 288 </span>      <span class="Delimiter">{</span>
-<span id="L289" class="LineNr"> 289 </span>        compare x, width
-<span id="L290" class="LineNr"> 290 </span>        <span class="PreProc">break-if-&gt;=</span>
-<span id="L291" class="LineNr"> 291 </span>        <span class="Delimiter">{</span>
-<span id="L292" class="LineNr"> 292 </span>          <span class="PreProc">var</span> idx/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L505'>pixel-index</a> target-screen, x, y
-<span id="L293" class="LineNr"> 293 </span>          <span class="PreProc">var</span> color-addr/<span class="muRegEcx">ecx</span>: (addr byte) <span class="Special">&lt;-</span> index pixels, idx
-<span id="L294" class="LineNr"> 294 </span>          <span class="PreProc">var</span> color/<span class="muRegEcx">ecx</span>: byte <span class="Special">&lt;-</span> copy-byte *color-addr
-<span id="L295" class="LineNr"> 295 </span>          <span class="PreProc">var</span> color2/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy color
-<span id="L296" class="LineNr"> 296 </span>          <span class="PreProc">var</span> x2/eax: int <span class="Special">&lt;-</span> copy x
-<span id="L297" class="LineNr"> 297 </span>          x2 <span class="Special">&lt;-</span> add left
-<span id="L298" class="LineNr"> 298 </span>          <span class="PreProc">var</span> y2/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy y
-<span id="L299" class="LineNr"> 299 </span>          y2 <span class="Special">&lt;-</span> add top
-<span id="L300" class="LineNr"> 300 </span>          <a href='../500fake-screen.mu.html#L483'>pixel</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, x2, y2, color2
-<span id="L301" class="LineNr"> 301 </span>        <span class="Delimiter">}</span>
-<span id="L302" class="LineNr"> 302 </span>        x <span class="Special">&lt;-</span> increment
-<span id="L303" class="LineNr"> 303 </span>        <span class="PreProc">loop</span>
-<span id="L304" class="LineNr"> 304 </span>      <span class="Delimiter">}</span>
-<span id="L305" class="LineNr"> 305 </span>      y <span class="Special">&lt;-</span> increment
-<span id="L306" class="LineNr"> 306 </span>      <span class="PreProc">loop</span>
-<span id="L307" class="LineNr"> 307 </span>    <span class="Delimiter">}</span>
-<span id="L308" class="LineNr"> 308 </span>  <span class="Delimiter">}</span>
-<span id="L309" class="LineNr"> 309 </span><span class="Delimiter">}</span>
-<span id="L310" class="LineNr"> 310 </span>
-<span id="L311" class="LineNr"> 311 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L311'>has-keyboard?</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>
-<span id="L312" class="LineNr"> 312 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
-<span id="L313" class="LineNr"> 313 </span>  <span class="PreProc">var</span> keyboard-obj-cell-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
-<span id="L314" class="LineNr"> 314 </span>  <span class="PreProc">var</span> keyboard-obj-cell/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-cell-ah
-<span id="L315" class="LineNr"> 315 </span>  compare keyboard-obj-cell, <span class="Constant">0</span>
-<span id="L316" class="LineNr"> 316 </span>  <span class="Delimiter">{</span>
-<span id="L317" class="LineNr"> 317 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L318" class="LineNr"> 318 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
-<span id="L319" class="LineNr"> 319 </span>  <span class="Delimiter">}</span>
-<span id="L320" class="LineNr"> 320 </span>  <span class="PreProc">var</span> keyboard-obj-cell-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-obj-cell, <span class="PreProc">type</span>
-<span id="L321" class="LineNr"> 321 </span>  compare *keyboard-obj-cell-type, <span class="Constant">6</span>/keyboard
-<span id="L322" class="LineNr"> 322 </span>  <span class="Delimiter">{</span>
-<span id="L323" class="LineNr"> 323 </span>    <span class="PreProc">break-if-=</span>
-<span id="L324" class="LineNr"> 324 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
-<span id="L325" class="LineNr"> 325 </span>  <span class="Delimiter">}</span>
-<span id="L326" class="LineNr"> 326 </span>  <span class="PreProc">var</span> keyboard-obj-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-obj-cell, keyboard-data
-<span id="L327" class="LineNr"> 327 </span>  <span class="PreProc">var</span> _keyboard-obj/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-ah
-<span id="L328" class="LineNr"> 328 </span>  <span class="PreProc">var</span> keyboard-obj/<span class="muRegEdx">edx</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard-obj
-<span id="L329" class="LineNr"> 329 </span>  compare keyboard-obj, <span class="Constant">0</span>
-<span id="L330" class="LineNr"> 330 </span>  <span class="Delimiter">{</span>
-<span id="L331" class="LineNr"> 331 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L332" class="LineNr"> 332 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
-<span id="L333" class="LineNr"> 333 </span>  <span class="Delimiter">}</span>
-<span id="L334" class="LineNr"> 334 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
-<span id="L335" class="LineNr"> 335 </span><span class="Delimiter">}</span>
-<span id="L336" class="LineNr"> 336 </span>
-<span id="L337" class="LineNr"> 337 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L337'>maybe-render-keyboard</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), xmin: int, ymin: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L338" class="LineNr"> 338 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
-<span id="L339" class="LineNr"> 339 </span>  <span class="PreProc">var</span> keyboard-obj-cell-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
-<span id="L340" class="LineNr"> 340 </span>  <span class="PreProc">var</span> keyboard-obj-cell/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-cell-ah
-<span id="L341" class="LineNr"> 341 </span>  compare keyboard-obj-cell, <span class="Constant">0</span>
-<span id="L342" class="LineNr"> 342 </span>  <span class="Delimiter">{</span>
-<span id="L343" class="LineNr"> 343 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L344" class="LineNr"> 344 </span>    <span class="PreProc">return</span> ymin
-<span id="L345" class="LineNr"> 345 </span>  <span class="Delimiter">}</span>
-<span id="L346" class="LineNr"> 346 </span>  <span class="PreProc">var</span> keyboard-obj-cell-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-obj-cell, <span class="PreProc">type</span>
-<span id="L347" class="LineNr"> 347 </span>  compare *keyboard-obj-cell-type, <span class="Constant">6</span>/keyboard
-<span id="L348" class="LineNr"> 348 </span>  <span class="Delimiter">{</span>
-<span id="L349" class="LineNr"> 349 </span>    <span class="PreProc">break-if-=</span>
-<span id="L350" class="LineNr"> 350 </span>    <span class="PreProc">return</span> ymin  <span class="muComment"># silently give up on rendering the keyboard</span>
-<span id="L351" class="LineNr"> 351 </span>  <span class="Delimiter">}</span>
-<span id="L352" class="LineNr"> 352 </span>  <span class="PreProc">var</span> keyboard-obj-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-obj-cell, keyboard-data
-<span id="L353" class="LineNr"> 353 </span>  <span class="PreProc">var</span> _keyboard-obj/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-ah
-<span id="L354" class="LineNr"> 354 </span>  <span class="PreProc">var</span> keyboard-obj/<span class="muRegEdx">edx</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard-obj
-<span id="L355" class="LineNr"> 355 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
-<span id="L356" class="LineNr"> 356 </span>  y <span class="Special">&lt;-</span> increment  <span class="muComment"># padding</span>
-<span id="L357" class="LineNr"> 357 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;keyboard: &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, y, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L358" class="LineNr"> 358 </span>  <span class="PreProc">var</span> cursor-in-keyboard?/<span class="muRegEsi">esi</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
-<span id="L359" class="LineNr"> 359 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L364'>render-keyboard</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, keyboard-obj, x, y, *cursor-in-keyboard?
-<span id="L360" class="LineNr"> 360 </span>  y <span class="Special">&lt;-</span> increment  <span class="muComment"># padding</span>
-<span id="L361" class="LineNr"> 361 </span>  <span class="PreProc">return</span> y
-<span id="L362" class="LineNr"> 362 </span><span class="Delimiter">}</span>
-<span id="L363" class="LineNr"> 363 </span>
-<span id="L364" class="LineNr"> 364 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L364'>render-keyboard</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _keyboard: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>), xmin: int, ymin: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L365" class="LineNr"> 365 </span>  <span class="PreProc">var</span> keyboard/<span class="muRegEsi">esi</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard
-<span id="L366" class="LineNr"> 366 </span>  <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0x10</span>/keyboard-capacity
-<span id="L367" class="LineNr"> 367 </span>  <span class="PreProc">var</span> y/<span class="muRegEdi">edi</span>: int <span class="Special">&lt;-</span> copy ymin
-<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/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L370" class="LineNr"> 370 </span>  <span class="PreProc">var</span> xmax/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy x
-<span id="L371" class="LineNr"> 371 </span>  xmax <span class="Special">&lt;-</span> add <span class="Constant">0x10</span>
-<span id="L372" class="LineNr"> 372 </span>  <span class="PreProc">var</span> ymax/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy ymin
-<span id="L373" class="LineNr"> 373 </span>  ymax <span class="Special">&lt;-</span> add <span class="Constant">1</span>
-<span id="L374" class="LineNr"> 374 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, x, y, xmax, ymax, <span class="Constant">0</span>/bg
-<span id="L375" class="LineNr"> 375 </span>  x <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L417'>render-gap-buffer</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, keyboard, x, y, render-cursor?, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
-<span id="L376" class="LineNr"> 376 </span>  y <span class="Special">&lt;-</span> increment
-<span id="L377" class="LineNr"> 377 </span>  <span class="PreProc">return</span> y
-<span id="L378" class="LineNr"> 378 </span><span class="Delimiter">}</span>
-<span id="L379" class="LineNr"> 379 </span>
-<span id="L380" class="LineNr"> 380 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L380'>print-screen-cell-of-fake-screen</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _target: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), x: int, y: int <span class="Delimiter">{</span>
-<span id="L381" class="LineNr"> 381 </span>  <span class="PreProc">var</span> target/<span class="muRegEcx">ecx</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _target
-<span id="L382" class="LineNr"> 382 </span>  <span class="PreProc">var</span> data-ah/eax: (addr handle array <a href='../500fake-screen.mu.html#L27'>screen-cell</a>) <span class="Special">&lt;-</span> get target, data
-<span id="L383" class="LineNr"> 383 </span>  <span class="PreProc">var</span> data/eax: (addr array <a href='../500fake-screen.mu.html#L27'>screen-cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
-<span id="L384" class="LineNr"> 384 </span>  <span class="PreProc">var</span> index/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L136'>screen-cell-index</a> target, x, y
-<span id="L385" class="LineNr"> 385 </span>  <span class="PreProc">var</span> offset/<span class="muRegEcx">ecx</span>: (offset <a href='../500fake-screen.mu.html#L27'>screen-cell</a>) <span class="Special">&lt;-</span> compute-offset data, index
-<span id="L386" class="LineNr"> 386 </span>  <span class="PreProc">var</span> src-cell/<span class="muRegEsi">esi</span>: (addr <a href='../500fake-screen.mu.html#L27'>screen-cell</a>) <span class="Special">&lt;-</span> index data, offset
-<span id="L387" class="LineNr"> 387 </span>  <span class="PreProc">var</span> src-grapheme/eax: (addr grapheme) <span class="Special">&lt;-</span> get src-cell, data
-<span id="L388" class="LineNr"> 388 </span>  <span class="PreProc">var</span> src-color/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get src-cell, color
-<span id="L389" class="LineNr"> 389 </span>  <span class="PreProc">var</span> src-background-color/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get src-cell, background-color
-<span id="L390" class="LineNr"> 390 </span>  <a href='../501draw-text.mu.html#L84'>draw-grapheme-at-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, *src-grapheme, *src-color, *src-background-color
-<span id="L391" class="LineNr"> 391 </span><span class="Delimiter">}</span>
-<span id="L392" class="LineNr"> 392 </span>
-<span id="L393" class="LineNr"> 393 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L393'>render-sandbox-edit-menu</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Delimiter">{</span>
-<span id="L394" class="LineNr"> 394 </span>  <span class="PreProc">var</span> _width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L395" class="LineNr"> 395 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L396" class="LineNr"> 396 </span>  _width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L397" class="LineNr"> 397 </span>  <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy _width
-<span id="L398" class="LineNr"> 398 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
-<span id="L399" class="LineNr"> 399 </span>  y <span class="Special">&lt;-</span> decrement
-<span id="L400" class="LineNr"> 400 </span>  <span class="PreProc">var</span> height/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy y
-<span id="L401" class="LineNr"> 401 </span>  height <span class="Special">&lt;-</span> increment
-<span id="L402" class="LineNr"> 402 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L403" class="LineNr"> 403 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
-<span id="L404" class="LineNr"> 404 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L405" class="LineNr"> 405 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L406" class="LineNr"> 406 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L407" class="LineNr"> 407 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L408" class="LineNr"> 408 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L409" class="LineNr"> 409 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L410" class="LineNr"> 410 </span>  $render-sandbox-edit-menu:render-ctrl-m: <span class="Delimiter">{</span>
-<span id="L411" class="LineNr"> 411 </span>    <span class="PreProc">var</span> self/eax: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
-<span id="L412" class="LineNr"> 412 </span>    <span class="PreProc">var</span> <a href='sandbox.mu.html#L908'>has-trace?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L908'>has-trace?</a> self
-<span id="L413" class="LineNr"> 413 </span>    compare <a href='sandbox.mu.html#L908'>has-trace?</a>, <span class="Constant">0</span>/false
-<span id="L414" class="LineNr"> 414 </span>    <span class="Delimiter">{</span>
-<span id="L415" class="LineNr"> 415 </span>      <span class="PreProc">break-if-=</span>
-<span id="L416" class="LineNr"> 416 </span>      <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x38</span>/bg=trace
-<span id="L417" class="LineNr"> 417 </span>      <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to trace  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L418" class="LineNr"> 418 </span>      <span class="PreProc">break</span> $render-sandbox-edit-menu:render-ctrl-m
-<span id="L419" class="LineNr"> 419 </span>    <span class="Delimiter">}</span>
-<span id="L420" class="LineNr"> 420 </span>    <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">3</span>/bg=keyboard
-<span id="L421" class="LineNr"> 421 </span>    <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to keyboard  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L422" class="LineNr"> 422 </span>  <span class="Delimiter">}</span>
-<span id="L423" class="LineNr"> 423 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^a &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L424" class="LineNr"> 424 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;&lt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L425" class="LineNr"> 425 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^b &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L426" class="LineNr"> 426 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;word  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L427" class="LineNr"> 427 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^f &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L428" class="LineNr"> 428 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; word&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L429" class="LineNr"> 429 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^e &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L430" class="LineNr"> 430 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &gt;&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L431" class="LineNr"> 431 </span><span class="Delimiter">}</span>
-<span id="L432" class="LineNr"> 432 </span>
-<span id="L433" class="LineNr"> 433 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L433'>render-keyboard-menu</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Delimiter">{</span>
-<span id="L434" class="LineNr"> 434 </span>  <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L435" class="LineNr"> 435 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L436" class="LineNr"> 436 </span>  width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L437" class="LineNr"> 437 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
-<span id="L438" class="LineNr"> 438 </span>  y <span class="Special">&lt;-</span> decrement
-<span id="L439" class="LineNr"> 439 </span>  <span class="PreProc">var</span> height/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy y
-<span id="L440" class="LineNr"> 440 </span>  height <span class="Special">&lt;-</span> increment
-<span id="L441" class="LineNr"> 441 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L442" class="LineNr"> 442 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
-<span id="L443" class="LineNr"> 443 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L444" class="LineNr"> 444 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L445" class="LineNr"> 445 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L446" class="LineNr"> 446 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L447" class="LineNr"> 447 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L448" class="LineNr"> 448 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L449" class="LineNr"> 449 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg
-<span id="L450" class="LineNr"> 450 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-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: grapheme, globals: (addr <a href='global.mu.html#L1'>global-table</a>), data-disk: (addr disk) <span class="Delimiter">{</span>
-<span id="L454" class="LineNr"> 454 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">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="muComment"># ctrl-s</span>
-<span id="L456" class="LineNr"> 456 </span>  <span class="Delimiter">{</span>
-<span id="L457" class="LineNr"> 457 </span>    compare key, <span class="Constant">0x13</span>/ctrl-s
-<span id="L458" class="LineNr"> 458 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L459" class="LineNr"> 459 </span>    <span class="muComment"># if cursor is in trace, skip</span>
-<span id="L460" class="LineNr"> 460 </span>    <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
-<span id="L461" class="LineNr"> 461 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
-<span id="L462" class="LineNr"> 462 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L463" class="LineNr"> 463 </span>    <span class="muComment"># minor gotcha here: any bindings created later in this iteration won't be</span>
-<span id="L464" class="LineNr"> 464 </span>    <span class="muComment"># persisted until the next call to ctrl-s.</span>
-<span id="L465" class="LineNr"> 465 </span>    <a href='environment.mu.html#L1031'>store-state</a> data-disk, self, globals
-<span id="L466" class="LineNr"> 466 </span>    <span class="muComment">#</span>
-<span id="L467" class="LineNr"> 467 </span><span class="CommentedCode">#?     turn-on-debug-print</span>
-<span id="L468" class="LineNr"> 468 </span>    <a href='sandbox.mu.html#L598'>run-sandbox</a> self, globals
-<span id="L469" class="LineNr"> 469 </span>    <span class="PreProc">return</span>
-<span id="L470" class="LineNr"> 470 </span>  <span class="Delimiter">}</span>
-<span id="L471" class="LineNr"> 471 </span>  <span class="muComment"># ctrl-m</span>
-<span id="L472" class="LineNr"> 472 </span>  <span class="Delimiter">{</span>
-<span id="L473" class="LineNr"> 473 </span>    compare key, <span class="Constant">0xd</span>/ctrl-m
-<span id="L474" class="LineNr"> 474 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L475" class="LineNr"> 475 </span>    <span class="muComment"># if cursor in data, switch to trace or fall through to keyboard</span>
-<span id="L476" class="LineNr"> 476 </span>    <span class="Delimiter">{</span>
-<span id="L477" class="LineNr"> 477 </span>      <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
-<span id="L478" class="LineNr"> 478 </span>      compare *cursor-in-data?, <span class="Constant">0</span>/false
-<span id="L479" class="LineNr"> 479 </span>      <span class="PreProc">break-if-=</span>
-<span id="L480" class="LineNr"> 480 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L908'>has-trace?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L908'>has-trace?</a> self
-<span id="L481" class="LineNr"> 481 </span>      compare <a href='sandbox.mu.html#L908'>has-trace?</a>, <span class="Constant">0</span>/false
-<span id="L482" class="LineNr"> 482 </span>      <span class="Delimiter">{</span>
-<span id="L483" class="LineNr"> 483 </span>        <span class="PreProc">break-if-=</span>
-<span id="L484" class="LineNr"> 484 </span>        <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
-<span id="L485" class="LineNr"> 485 </span>        copy-to *cursor-in-data?, <span class="Constant">0</span>/false
-<span id="L486" class="LineNr"> 486 </span>        <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
-<span id="L487" class="LineNr"> 487 </span>        copy-to *cursor-in-trace?, <span class="Constant">1</span>/false
-<span id="L488" class="LineNr"> 488 </span>        <span class="PreProc">return</span>
-<span id="L489" class="LineNr"> 489 </span>      <span class="Delimiter">}</span>
-<span id="L490" class="LineNr"> 490 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L311'>has-keyboard?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L311'>has-keyboard?</a> self
-<span id="L491" class="LineNr"> 491 </span>      compare <a href='sandbox.mu.html#L311'>has-keyboard?</a>, <span class="Constant">0</span>/false
-<span id="L492" class="LineNr"> 492 </span>      <span class="Delimiter">{</span>
-<span id="L493" class="LineNr"> 493 </span>        <span class="PreProc">break-if-=</span>
-<span id="L494" class="LineNr"> 494 </span>        <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
-<span id="L495" class="LineNr"> 495 </span>        copy-to *cursor-in-data?, <span class="Constant">0</span>/false
-<span id="L496" class="LineNr"> 496 </span>        <span class="PreProc">var</span> cursor-in-keyboard?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
-<span id="L497" class="LineNr"> 497 </span>        copy-to *cursor-in-keyboard?, <span class="Constant">1</span>/false
-<span id="L498" class="LineNr"> 498 </span>        <span class="PreProc">return</span>
-<span id="L499" class="LineNr"> 499 </span>      <span class="Delimiter">}</span>
-<span id="L500" class="LineNr"> 500 </span>      <span class="PreProc">return</span>
-<span id="L501" class="LineNr"> 501 </span>    <span class="Delimiter">}</span>
-<span id="L502" class="LineNr"> 502 </span>    <span class="muComment"># if cursor in trace, switch to keyboard or fall through to data</span>
-<span id="L503" class="LineNr"> 503 </span>    <span class="Delimiter">{</span>
-<span id="L504" class="LineNr"> 504 </span>      <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
-<span id="L505" class="LineNr"> 505 </span>      compare *cursor-in-trace?, <span class="Constant">0</span>/false
-<span id="L506" class="LineNr"> 506 </span>      <span class="PreProc">break-if-=</span>
-<span id="L507" class="LineNr"> 507 </span>      copy-to *cursor-in-trace?, <span class="Constant">0</span>/false
-<span id="L508" class="LineNr"> 508 </span>      <span class="PreProc">var</span> cursor-target/<span class="muRegEcx">ecx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
-<span id="L509" class="LineNr"> 509 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L311'>has-keyboard?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L311'>has-keyboard?</a> self
-<span id="L510" class="LineNr"> 510 </span>      compare <a href='sandbox.mu.html#L311'>has-keyboard?</a>, <span class="Constant">0</span>/false
-<span id="L511" class="LineNr"> 511 </span>      <span class="Delimiter">{</span>
-<span id="L512" class="LineNr"> 512 </span>        <span class="PreProc">break-if-!=</span>
-<span id="L513" class="LineNr"> 513 </span>        cursor-target <span class="Special">&lt;-</span> get self, cursor-in-data?
-<span id="L514" class="LineNr"> 514 </span>      <span class="Delimiter">}</span>
-<span id="L515" class="LineNr"> 515 </span>      copy-to *cursor-target, <span class="Constant">1</span>/true
-<span id="L516" class="LineNr"> 516 </span>      <span class="PreProc">return</span>
-<span id="L517" class="LineNr"> 517 </span>    <span class="Delimiter">}</span>
-<span id="L518" class="LineNr"> 518 </span>    <span class="muComment"># otherwise if cursor in keyboard, switch to data</span>
-<span id="L519" class="LineNr"> 519 </span>    <span class="Delimiter">{</span>
-<span id="L520" class="LineNr"> 520 </span>      <span class="PreProc">var</span> cursor-in-keyboard?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
-<span id="L521" class="LineNr"> 521 </span>      compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
-<span id="L522" class="LineNr"> 522 </span>      <span class="PreProc">break-if-=</span>
-<span id="L523" class="LineNr"> 523 </span>      copy-to *cursor-in-keyboard?, <span class="Constant">0</span>/false
-<span id="L524" class="LineNr"> 524 </span>      <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
-<span id="L525" class="LineNr"> 525 </span>      copy-to *cursor-in-data?, <span class="Constant">1</span>/true
-<span id="L526" class="LineNr"> 526 </span>      <span class="PreProc">return</span>
-<span id="L527" class="LineNr"> 527 </span>    <span class="Delimiter">}</span>
-<span id="L528" class="LineNr"> 528 </span>    <span class="PreProc">return</span>
-<span id="L529" class="LineNr"> 529 </span>  <span class="Delimiter">}</span>
-<span id="L530" class="LineNr"> 530 </span>  <span class="muComment"># if cursor in data, send key to data</span>
-<span id="L531" class="LineNr"> 531 </span>  <span class="Delimiter">{</span>
-<span id="L532" class="LineNr"> 532 </span>    <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
-<span id="L533" class="LineNr"> 533 </span>    compare *cursor-in-data?, <span class="Constant">0</span>/false
-<span id="L534" class="LineNr"> 534 </span>    <span class="PreProc">break-if-=</span>
-<span id="L535" class="LineNr"> 535 </span>    <span class="PreProc">var</span> data-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
-<span id="L536" class="LineNr"> 536 </span>    <span class="PreProc">var</span> data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
-<span id="L537" class="LineNr"> 537 </span>    <a href='../514gap-buffer.mu.html#L1204'>edit-gap-buffer</a> data, key
-<span id="L538" class="LineNr"> 538 </span>    <span class="PreProc">return</span>
-<span id="L539" class="LineNr"> 539 </span>  <span class="Delimiter">}</span>
-<span id="L540" class="LineNr"> 540 </span>  <span class="muComment"># if cursor in keyboard, send key to keyboard</span>
-<span id="L541" class="LineNr"> 541 </span>  <span class="Delimiter">{</span>
-<span id="L542" class="LineNr"> 542 </span>    <span class="PreProc">var</span> cursor-in-keyboard?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
-<span id="L543" class="LineNr"> 543 </span>    compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
-<span id="L544" class="LineNr"> 544 </span>    <span class="PreProc">break-if-=</span>
-<span id="L545" class="LineNr"> 545 </span>    <span class="PreProc">var</span> inner-keyboard-var-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
-<span id="L546" class="LineNr"> 546 </span>    <span class="PreProc">var</span> inner-keyboard-var/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *inner-keyboard-var-ah
-<span id="L547" class="LineNr"> 547 </span>    compare inner-keyboard-var, <span class="Constant">0</span>
-<span id="L548" class="LineNr"> 548 </span>    <span class="Delimiter">{</span>
-<span id="L549" class="LineNr"> 549 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L550" class="LineNr"> 550 </span>      <span class="PreProc">return</span>
-<span id="L551" class="LineNr"> 551 </span>    <span class="Delimiter">}</span>
-<span id="L552" class="LineNr"> 552 </span>    <span class="PreProc">var</span> inner-keyboard-var-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get inner-keyboard-var, <span class="PreProc">type</span>
-<span id="L553" class="LineNr"> 553 </span>    compare *inner-keyboard-var-type, <span class="Constant">6</span>/keyboard
-<span id="L554" class="LineNr"> 554 </span>    <span class="Delimiter">{</span>
-<span id="L555" class="LineNr"> 555 </span>      <span class="PreProc">break-if-=</span>
-<span id="L556" class="LineNr"> 556 </span>      <span class="PreProc">return</span>
-<span id="L557" class="LineNr"> 557 </span>    <span class="Delimiter">}</span>
-<span id="L558" class="LineNr"> 558 </span>    <span class="PreProc">var</span> keyboard-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get inner-keyboard-var, keyboard-data
-<span id="L559" class="LineNr"> 559 </span>    <span class="PreProc">var</span> keyboard/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-ah
-<span id="L560" class="LineNr"> 560 </span>    <a href='../514gap-buffer.mu.html#L1204'>edit-gap-buffer</a> keyboard, key
-<span id="L561" class="LineNr"> 561 </span>    <span class="PreProc">return</span>
-<span id="L562" class="LineNr"> 562 </span>  <span class="Delimiter">}</span>
-<span id="L563" class="LineNr"> 563 </span>  <span class="muComment"># if cursor in trace, send key to trace</span>
-<span id="L564" class="LineNr"> 564 </span>  <span class="Delimiter">{</span>
-<span id="L565" class="LineNr"> 565 </span>    <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
-<span id="L566" class="LineNr"> 566 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
-<span id="L567" class="LineNr"> 567 </span>    <span class="PreProc">break-if-=</span>
-<span id="L568" class="LineNr"> 568 </span>    <span class="PreProc">var</span> trace-ah/eax: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
-<span id="L569" class="LineNr"> 569 </span>    <span class="PreProc">var</span> trace/eax: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *trace-ah
-<span id="L570" class="LineNr"> 570 </span>    <span class="muComment"># if expanding the trace, first check if we need to run the sandbox again with a deeper trace</span>
-<span id="L571" class="LineNr"> 571 </span>    <span class="Delimiter">{</span>
-<span id="L572" class="LineNr"> 572 </span>      compare key, <span class="Constant">0xa</span>/newline
-<span id="L573" class="LineNr"> 573 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L574" class="LineNr"> 574 </span>      <span class="Delimiter">{</span>
-<span id="L575" class="LineNr"> 575 </span>        <span class="PreProc">var</span> need-rerun?/eax: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L1139'>cursor-too-deep?</a> trace
-<span id="L576" class="LineNr"> 576 </span>        compare need-rerun?, <span class="Constant">0</span>/false
-<span id="L577" class="LineNr"> 577 </span>      <span class="Delimiter">}</span>
-<span id="L578" class="LineNr"> 578 </span>      <span class="PreProc">break-if-=</span>
-<span id="L579" class="LineNr"> 579 </span><span class="CommentedCode">#?       draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, &quot;rerun&quot;, 7/fg 0/bg</span>
-<span id="L580" class="LineNr"> 580 </span>      <span class="muComment"># save trace lines at various cached indices</span>
-<span id="L581" class="LineNr"> 581 </span>      <span class="PreProc">var</span> save: <a href='trace.mu.html#L50'>trace-index-stash</a>
-<span id="L582" class="LineNr"> 582 </span>      <span class="PreProc">var</span> save-addr/<span class="muRegEcx">ecx</span>: (addr <a href='trace.mu.html#L50'>trace-index-stash</a>) <span class="Special">&lt;-</span> address save
-<span id="L583" class="LineNr"> 583 </span>      <a href='trace.mu.html#L2098'>save-indices</a> trace, save-addr
-<span id="L584" class="LineNr"> 584 </span>      <span class="muComment"># rerun at higher depth</span>
-<span id="L585" class="LineNr"> 585 </span>      <span class="PreProc">var</span> max-depth-addr/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get trace, max-depth
-<span id="L586" class="LineNr"> 586 </span>      increment *max-depth-addr
-<span id="L587" class="LineNr"> 587 </span>      <a href='sandbox.mu.html#L598'>run-sandbox</a> self, globals
-<span id="L588" class="LineNr"> 588 </span>      <span class="muComment"># recompute cached indices</span>
-<span id="L589" class="LineNr"> 589 </span>      <a href='trace.mu.html#L625'>recompute-all-visible-lines</a> trace
-<span id="L590" class="LineNr"> 590 </span>      <span class="PreProc">var</span> save-addr/<span class="muRegEcx">ecx</span>: (addr <a href='trace.mu.html#L50'>trace-index-stash</a>) <span class="Special">&lt;-</span> address save
-<span id="L591" class="LineNr"> 591 </span>      <a href='trace.mu.html#L2144'>restore-indices</a> trace, save-addr
-<span id="L592" class="LineNr"> 592 </span>    <span class="Delimiter">}</span>
-<span id="L593" class="LineNr"> 593 </span>    <a href='trace.mu.html#L907'>edit-trace</a> trace, key
-<span id="L594" class="LineNr"> 594 </span>    <span class="PreProc">return</span>
-<span id="L595" class="LineNr"> 595 </span>  <span class="Delimiter">}</span>
-<span id="L596" class="LineNr"> 596 </span><span class="Delimiter">}</span>
-<span id="L597" class="LineNr"> 597 </span>
-<span id="L598" class="LineNr"> 598 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L598'>run-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), globals: (addr <a href='global.mu.html#L1'>global-table</a>) <span class="Delimiter">{</span>
-<span id="L599" class="LineNr"> 599 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
-<span id="L600" class="LineNr"> 600 </span>  <span class="PreProc">var</span> data-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
-<span id="L601" class="LineNr"> 601 </span>  <span class="PreProc">var</span> eval-result-h: (handle <a href='cell.mu.html#L1'>cell</a>)
-<span id="L602" class="LineNr"> 602 </span>  <span class="PreProc">var</span> eval-result-ah/<span class="muRegEdi">edi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address eval-result-h
-<span id="L603" class="LineNr"> 603 </span>  <span class="PreProc">var</span> definitions-created-storage: (stream int <span class="Constant">0x10</span>)
-<span id="L604" class="LineNr"> 604 </span>  <span class="PreProc">var</span> definitions-created/<span class="muRegEdx">edx</span>: (addr stream int) <span class="Special">&lt;-</span> address definitions-created-storage
-<span id="L605" class="LineNr"> 605 </span>  <span class="PreProc">var</span> trace-ah/eax: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
-<span id="L606" class="LineNr"> 606 </span>  <span class="PreProc">var</span> _trace/eax: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *trace-ah
-<span id="L607" class="LineNr"> 607 </span>  <span class="PreProc">var</span> trace/<span class="muRegEbx">ebx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
-<span id="L608" class="LineNr"> 608 </span>  <a href='trace.mu.html#L80'>clear-trace</a> trace
-<span id="L609" class="LineNr"> 609 </span>  <span class="PreProc">var</span> tmp/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, screen-var
-<span id="L610" class="LineNr"> 610 </span>  <span class="PreProc">var</span> inner-screen-var: (addr handle <a href='cell.mu.html#L1'>cell</a>)
-<span id="L611" class="LineNr"> 611 </span>  copy-to inner-screen-var, tmp
-<span id="L612" class="LineNr"> 612 </span>  <a href='cell.mu.html#L225'>clear-screen-var</a> inner-screen-var
-<span id="L613" class="LineNr"> 613 </span>  <span class="PreProc">var</span> inner-keyboard-var/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
-<span id="L614" class="LineNr"> 614 </span>  <a href='cell.mu.html#L267'>rewind-keyboard-var</a> inner-keyboard-var  <span class="muComment"># don't clear keys from before</span>
-<span id="L615" class="LineNr"> 615 </span>  <span class="muComment">#</span>
-<span id="L616" class="LineNr"> 616 </span>  <a href='environment.mu.html#L388'>read-and-evaluate-and-save-gap-buffer-to-globals</a> data-ah, eval-result-ah, globals, definitions-created, trace, inner-screen-var, inner-keyboard-var
-<span id="L617" class="LineNr"> 617 </span>  <span class="PreProc">var</span> error?/eax: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L94'>has-errors?</a> trace
-<span id="L618" class="LineNr"> 618 </span>  <span class="Delimiter">{</span>
-<span id="L619" class="LineNr"> 619 </span>    compare error?, <span class="Constant">0</span>/false
-<span id="L620" class="LineNr"> 620 </span>    <span class="PreProc">break-if-=</span>
-<span id="L621" class="LineNr"> 621 </span>    <span class="PreProc">return</span>
-<span id="L622" class="LineNr"> 622 </span>  <span class="Delimiter">}</span>
-<span id="L623" class="LineNr"> 623 </span>  <span class="muComment"># if necessary, initialize a new gap-buffer for sandbox</span>
-<span id="L624" class="LineNr"> 624 </span>  <span class="Delimiter">{</span>
-<span id="L625" class="LineNr"> 625 </span>    compare globals, <span class="Constant">0</span>
-<span id="L626" class="LineNr"> 626 </span>    <span class="PreProc">break-if-=</span>
-<span id="L627" class="LineNr"> 627 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> definitions-created
-<span id="L628" class="LineNr"> 628 </span>    <span class="PreProc">var</span> no-definitions?/eax: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> definitions-created
-<span id="L629" class="LineNr"> 629 </span>    compare no-definitions?, <span class="Constant">0</span>/false
-<span id="L630" class="LineNr"> 630 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L631" class="LineNr"> 631 </span>    <span class="muComment"># some definitions were created; clear the gap buffer</span>
-<span id="L632" class="LineNr"> 632 </span>    <span class="PreProc">var</span> data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
-<span id="L633" class="LineNr"> 633 </span>    <span class="PreProc">var</span> capacity/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L43'>gap-buffer-capacity</a> data
-<span id="L634" class="LineNr"> 634 </span>    <a href='../120allocate.subx.html#L43'>allocate</a> data-ah
-<span id="L635" class="LineNr"> 635 </span>    <span class="PreProc">var</span> new-data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
-<span id="L636" class="LineNr"> 636 </span>    <a href='../514gap-buffer.mu.html#L11'>initialize-gap-buffer</a> new-data, capacity
-<span id="L637" class="LineNr"> 637 </span>  <span class="Delimiter">}</span>
-<span id="L638" class="LineNr"> 638 </span>  <span class="muComment"># print</span>
-<span id="L639" class="LineNr"> 639 </span>  <span class="PreProc">var</span> value-ah/eax: (addr handle stream byte) <span class="Special">&lt;-</span> get self, value
-<span id="L640" class="LineNr"> 640 </span>  <span class="PreProc">var</span> value/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *value-ah
-<span id="L641" class="LineNr"> 641 </span>  <a href='../106stream.subx.html#L20'>clear-stream</a> value
-<span id="L642" class="LineNr"> 642 </span>  <a href='print.mu.html#L7'>print-cell</a> eval-result-ah, value, trace
-<span id="L643" class="LineNr"> 643 </span><span class="Delimiter">}</span>
-<span id="L644" class="LineNr"> 644 </span>
-<span id="L645" class="LineNr"> 645 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L645'>test-run-integer</a></span> <span class="Delimiter">{</span>
-<span id="L646" class="LineNr"> 646 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L647" class="LineNr"> 647 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L648" class="LineNr"> 648 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;1&quot;</span>
-<span id="L649" class="LineNr"> 649 </span>  <span class="muComment"># eval</span>
-<span id="L650" class="LineNr"> 650 </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-disk
-<span id="L651" class="LineNr"> 651 </span>  <span class="muComment"># setup: screen</span>
-<span id="L652" class="LineNr"> 652 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L653" class="LineNr"> 653 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L654" class="LineNr"> 654 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L655" class="LineNr"> 655 </span>  <span class="muComment">#</span>
-<span id="L656" class="LineNr"> 656 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L657" class="LineNr"> 657 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L658" class="LineNr"> 658 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; 1    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L645'>test-run-integer</a>/0&quot;</span>
-<span id="L659" class="LineNr"> 659 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L645'>test-run-integer</a>/1&quot;</span>
-<span id="L660" class="LineNr"> 660 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L645'>test-run-integer</a>/2&quot;</span>
-<span id="L661" class="LineNr"> 661 </span><span class="Delimiter">}</span>
-<span id="L662" class="LineNr"> 662 </span>
-<span id="L663" class="LineNr"> 663 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L663'>test-run-negative-integer</a></span> <span class="Delimiter">{</span>
-<span id="L664" class="LineNr"> 664 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L665" class="LineNr"> 665 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L666" class="LineNr"> 666 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;-1&quot;</span>
-<span id="L667" class="LineNr"> 667 </span>  <span class="muComment"># eval</span>
-<span id="L668" class="LineNr"> 668 </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-disk
-<span id="L669" class="LineNr"> 669 </span>  <span class="muComment"># setup: screen</span>
-<span id="L670" class="LineNr"> 670 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L671" class="LineNr"> 671 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L672" class="LineNr"> 672 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L673" class="LineNr"> 673 </span>  <span class="muComment">#</span>
-<span id="L674" class="LineNr"> 674 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L675" class="LineNr"> 675 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L676" class="LineNr"> 676 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; -1    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L663'>test-run-negative-integer</a>/0&quot;</span>
-<span id="L677" class="LineNr"> 677 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L663'>test-run-negative-integer</a>/1&quot;</span>
-<span id="L678" class="LineNr"> 678 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L663'>test-run-negative-integer</a>/2&quot;</span>
-<span id="L679" class="LineNr"> 679 </span><span class="Delimiter">}</span>
-<span id="L680" class="LineNr"> 680 </span>
-<span id="L681" class="LineNr"> 681 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L681'>test-run-error-invalid-integer</a></span> <span class="Delimiter">{</span>
-<span id="L682" class="LineNr"> 682 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L683" class="LineNr"> 683 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L684" class="LineNr"> 684 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;1a&quot;</span>
-<span id="L685" class="LineNr"> 685 </span>  <span class="muComment"># eval</span>
-<span id="L686" class="LineNr"> 686 </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-disk
-<span id="L687" class="LineNr"> 687 </span>  <span class="muComment"># setup: screen</span>
-<span id="L688" class="LineNr"> 688 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L689" class="LineNr"> 689 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L690" class="LineNr"> 690 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L691" class="LineNr"> 691 </span>  <span class="muComment">#</span>
-<span id="L692" class="LineNr"> 692 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L693" class="LineNr"> 693 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L694" class="LineNr"> 694 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">1</span>/y, <span class="Constant">&quot; 1a                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L681'>test-run-error-invalid-integer</a>/0&quot;</span>
-<span id="L695" class="LineNr"> 695 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L681'>test-run-error-invalid-integer</a>/1&quot;</span>
-<span id="L696" class="LineNr"> 696 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>   <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xc</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>, <span class="Constant">3</span>/y, <span class="Constant">&quot; unbound symbol: 1a       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L681'>test-run-error-invalid-integer</a>/2&quot;</span>
-<span id="L697" class="LineNr"> 697 </span><span class="Delimiter">}</span>
-<span id="L698" class="LineNr"> 698 </span>
-<span id="L699" class="LineNr"> 699 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L699'>test-run-error-unknown-symbol</a></span> <span class="Delimiter">{</span>
-<span id="L700" class="LineNr"> 700 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L701" class="LineNr"> 701 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L702" class="LineNr"> 702 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;a&quot;</span>
-<span id="L703" class="LineNr"> 703 </span>  <span class="muComment"># eval</span>
-<span id="L704" class="LineNr"> 704 </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-disk
-<span id="L705" class="LineNr"> 705 </span>  <span class="muComment"># setup: screen</span>
-<span id="L706" class="LineNr"> 706 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L707" class="LineNr"> 707 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L708" class="LineNr"> 708 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L709" class="LineNr"> 709 </span>  <span class="muComment">#</span>
-<span id="L710" class="LineNr"> 710 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L711" class="LineNr"> 711 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L712" class="LineNr"> 712 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">1</span>/y, <span class="Constant">&quot; a                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L699'>test-run-error-unknown-symbol</a>/0&quot;</span>
-<span id="L713" class="LineNr"> 713 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L699'>test-run-error-unknown-symbol</a>/1&quot;</span>
-<span id="L714" class="LineNr"> 714 </span>  <a href='../504test-screen.mu.html#L71'>check-screen-row-in-color</a>   <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xc</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>, <span class="Constant">3</span>/y, <span class="Constant">&quot; unbound symbol: a  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L699'>test-run-error-unknown-symbol</a>/2&quot;</span>
-<span id="L715" class="LineNr"> 715 </span><span class="Delimiter">}</span>
-<span id="L716" class="LineNr"> 716 </span>
-<span id="L717" class="LineNr"> 717 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L717'>test-run-with-spaces</a></span> <span class="Delimiter">{</span>
-<span id="L718" class="LineNr"> 718 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L719" class="LineNr"> 719 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L720" class="LineNr"> 720 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot; 1 \n&quot;</span>
-<span id="L721" class="LineNr"> 721 </span>  <span class="muComment"># eval</span>
-<span id="L722" class="LineNr"> 722 </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-disk
-<span id="L723" class="LineNr"> 723 </span>  <span class="muComment"># setup: screen</span>
-<span id="L724" class="LineNr"> 724 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L725" class="LineNr"> 725 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L726" class="LineNr"> 726 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L727" class="LineNr"> 727 </span>  <span class="muComment">#</span>
-<span id="L728" class="LineNr"> 728 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L729" class="LineNr"> 729 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L730" class="LineNr"> 730 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;  1   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L717'>test-run-with-spaces</a>/0&quot;</span>
-<span id="L731" class="LineNr"> 731 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L717'>test-run-with-spaces</a>/1&quot;</span>
-<span id="L732" class="LineNr"> 732 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; ...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L717'>test-run-with-spaces</a>/2&quot;</span>
-<span id="L733" class="LineNr"> 733 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/y, <span class="Constant">&quot; =&gt; 1 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L717'>test-run-with-spaces</a>/3&quot;</span>
-<span id="L734" class="LineNr"> 734 </span><span class="Delimiter">}</span>
-<span id="L735" class="LineNr"> 735 </span>
-<span id="L736" class="LineNr"> 736 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L736'>test-run-quote</a></span> <span class="Delimiter">{</span>
-<span id="L737" class="LineNr"> 737 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L738" class="LineNr"> 738 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L739" class="LineNr"> 739 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'a&quot;</span>
-<span id="L740" class="LineNr"> 740 </span>  <span class="muComment"># eval</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">0x13</span>/ctrl-s, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L742" class="LineNr"> 742 </span>  <span class="muComment"># setup: screen</span>
-<span id="L743" class="LineNr"> 743 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L744" class="LineNr"> 744 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L745" class="LineNr"> 745 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L746" class="LineNr"> 746 </span>  <span class="muComment">#</span>
-<span id="L747" class="LineNr"> 747 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L748" class="LineNr"> 748 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L749" class="LineNr"> 749 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; 'a   &quot;</span>, <span class="Constant">&quot;F - test-run-quote/0&quot;</span>
-<span id="L750" class="LineNr"> 750 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L736'>test-run-quote</a>/1&quot;</span>
-<span id="L751" class="LineNr"> 751 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; a &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L736'>test-run-quote</a>/2&quot;</span>
-<span id="L752" class="LineNr"> 752 </span><span class="Delimiter">}</span>
-<span id="L753" class="LineNr"> 753 </span>
-<span id="L754" class="LineNr"> 754 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L754'>test-run-dotted-list</a></span> <span class="Delimiter">{</span>
-<span id="L755" class="LineNr"> 755 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L756" class="LineNr"> 756 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L757" class="LineNr"> 757 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . b)&quot;</span>
-<span id="L758" class="LineNr"> 758 </span>  <span class="muComment"># eval</span>
-<span id="L759" class="LineNr"> 759 </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-disk
-<span id="L760" class="LineNr"> 760 </span>  <span class="muComment"># setup: screen</span>
-<span id="L761" class="LineNr"> 761 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L762" class="LineNr"> 762 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L763" class="LineNr"> 763 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L764" class="LineNr"> 764 </span>  <span class="muComment">#</span>
-<span id="L765" class="LineNr"> 765 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L766" class="LineNr"> 766 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L767" class="LineNr"> 767 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . b)   &quot;</span>, <span class="Constant">&quot;F - test-run-dotted-list/0&quot;</span>
-<span id="L768" class="LineNr"> 768 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...        &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L754'>test-run-dotted-list</a>/1&quot;</span>
-<span id="L769" class="LineNr"> 769 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; (a . b) &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L754'>test-run-dotted-list</a>/2&quot;</span>
-<span id="L770" class="LineNr"> 770 </span><span class="Delimiter">}</span>
-<span id="L771" class="LineNr"> 771 </span>
-<span id="L772" class="LineNr"> 772 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L772'>test-run-dot-and-list</a></span> <span class="Delimiter">{</span>
-<span id="L773" class="LineNr"> 773 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L774" class="LineNr"> 774 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L775" class="LineNr"> 775 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . (b))&quot;</span>
-<span id="L776" class="LineNr"> 776 </span>  <span class="muComment"># eval</span>
-<span id="L777" class="LineNr"> 777 </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-disk
-<span id="L778" class="LineNr"> 778 </span>  <span class="muComment"># setup: screen</span>
-<span id="L779" class="LineNr"> 779 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L780" class="LineNr"> 780 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L781" class="LineNr"> 781 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L782" class="LineNr"> 782 </span>  <span class="muComment">#</span>
-<span id="L783" class="LineNr"> 783 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L784" class="LineNr"> 784 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L785" class="LineNr"> 785 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . (b)) &quot;</span>, <span class="Constant">&quot;F - test-run-dot-and-list/0&quot;</span>
-<span id="L786" class="LineNr"> 786 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...        &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L772'>test-run-dot-and-list</a>/1&quot;</span>
-<span id="L787" class="LineNr"> 787 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; (a b)   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L772'>test-run-dot-and-list</a>/2&quot;</span>
-<span id="L788" class="LineNr"> 788 </span><span class="Delimiter">}</span>
-<span id="L789" class="LineNr"> 789 </span>
-<span id="L790" class="LineNr"> 790 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L790'>test-run-final-dot</a></span> <span class="Delimiter">{</span>
-<span id="L791" class="LineNr"> 791 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L792" class="LineNr"> 792 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L793" class="LineNr"> 793 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a .)&quot;</span>
-<span id="L794" class="LineNr"> 794 </span>  <span class="muComment"># eval</span>
-<span id="L795" class="LineNr"> 795 </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-disk
-<span id="L796" class="LineNr"> 796 </span>  <span class="muComment"># setup: screen</span>
-<span id="L797" class="LineNr"> 797 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L798" class="LineNr"> 798 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L799" class="LineNr"> 799 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L800" class="LineNr"> 800 </span>  <span class="muComment">#</span>
-<span id="L801" class="LineNr"> 801 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L802" class="LineNr"> 802 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L803" class="LineNr"> 803 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a .)               &quot;</span>, <span class="Constant">&quot;F - test-run-final-dot/0&quot;</span>
-<span id="L804" class="LineNr"> 804 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L790'>test-run-final-dot</a>/1&quot;</span>
-<span id="L805" class="LineNr"> 805 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; '. )' makes no sense &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L790'>test-run-final-dot</a>/2&quot;</span>
-<span id="L806" class="LineNr"> 806 </span>  <span class="muComment"># further errors may occur</span>
-<span id="L807" class="LineNr"> 807 </span><span class="Delimiter">}</span>
-<span id="L808" class="LineNr"> 808 </span>
-<span id="L809" class="LineNr"> 809 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L809'>test-run-double-dot</a></span> <span class="Delimiter">{</span>
-<span id="L810" class="LineNr"> 810 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L811" class="LineNr"> 811 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L812" class="LineNr"> 812 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . .)&quot;</span>
-<span id="L813" class="LineNr"> 813 </span>  <span class="muComment"># eval</span>
-<span id="L814" class="LineNr"> 814 </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-disk
-<span id="L815" class="LineNr"> 815 </span>  <span class="muComment"># setup: screen</span>
-<span id="L816" class="LineNr"> 816 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L817" class="LineNr"> 817 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L818" class="LineNr"> 818 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L819" class="LineNr"> 819 </span>  <span class="muComment">#</span>
-<span id="L820" class="LineNr"> 820 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L821" class="LineNr"> 821 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L822" class="LineNr"> 822 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . .)             &quot;</span>, <span class="Constant">&quot;F - test-run-double-dot/0&quot;</span>
-<span id="L823" class="LineNr"> 823 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L809'>test-run-double-dot</a>/1&quot;</span>
-<span id="L824" class="LineNr"> 824 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; '. .' makes no sense &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L809'>test-run-double-dot</a>/2&quot;</span>
-<span id="L825" class="LineNr"> 825 </span>  <span class="muComment"># further errors may occur</span>
-<span id="L826" class="LineNr"> 826 </span><span class="Delimiter">}</span>
-<span id="L827" class="LineNr"> 827 </span>
-<span id="L828" class="LineNr"> 828 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L828'>test-run-multiple-expressions-after-dot</a></span> <span class="Delimiter">{</span>
-<span id="L829" class="LineNr"> 829 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L830" class="LineNr"> 830 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L831" class="LineNr"> 831 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . b c)&quot;</span>
-<span id="L832" class="LineNr"> 832 </span>  <span class="muComment"># eval</span>
-<span id="L833" class="LineNr"> 833 </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-disk
-<span id="L834" class="LineNr"> 834 </span>  <span class="muComment"># setup: screen</span>
-<span id="L835" class="LineNr"> 835 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L836" class="LineNr"> 836 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L837" class="LineNr"> 837 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L838" class="LineNr"> 838 </span>  <span class="muComment">#</span>
-<span id="L839" class="LineNr"> 839 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L840" class="LineNr"> 840 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L841" class="LineNr"> 841 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . b c)                                           &quot;</span>, <span class="Constant">&quot;F - test-run-multiple-expressions-after-dot/0&quot;</span>
-<span id="L842" class="LineNr"> 842 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                                                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L828'>test-run-multiple-expressions-after-dot</a>/1&quot;</span>
-<span id="L843" class="LineNr"> 843 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; cannot have multiple expressions between '.' and ')' &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L828'>test-run-multiple-expressions-after-dot</a>/2&quot;</span>
-<span id="L844" class="LineNr"> 844 </span>  <span class="muComment"># further errors may occur</span>
-<span id="L845" class="LineNr"> 845 </span><span class="Delimiter">}</span>
-<span id="L846" class="LineNr"> 846 </span>
-<span id="L847" class="LineNr"> 847 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L847'>test-run-stream</a></span> <span class="Delimiter">{</span>
-<span id="L848" class="LineNr"> 848 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L849" class="LineNr"> 849 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L850" class="LineNr"> 850 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;[a b]&quot;</span>
-<span id="L851" class="LineNr"> 851 </span>  <span class="muComment"># eval</span>
-<span id="L852" class="LineNr"> 852 </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-disk
-<span id="L853" class="LineNr"> 853 </span>  <span class="muComment"># setup: screen</span>
-<span id="L854" class="LineNr"> 854 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L855" class="LineNr"> 855 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L856" class="LineNr"> 856 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L857" class="LineNr"> 857 </span>  <span class="muComment">#</span>
-<span id="L858" class="LineNr"> 858 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L859" class="LineNr"> 859 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L860" class="LineNr"> 860 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; [a b]    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L847'>test-run-stream</a>/0&quot;</span>
-<span id="L861" class="LineNr"> 861 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L847'>test-run-stream</a>/1&quot;</span>
-<span id="L862" class="LineNr"> 862 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; [a b] &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L847'>test-run-stream</a>/2&quot;</span>
-<span id="L863" class="LineNr"> 863 </span><span class="Delimiter">}</span>
-<span id="L864" class="LineNr"> 864 </span>
-<span id="L865" class="LineNr"> 865 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a></span> <span class="Delimiter">{</span>
-<span id="L866" class="LineNr"> 866 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L867" class="LineNr"> 867 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L868" class="LineNr"> 868 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;12&quot;</span>
-<span id="L869" class="LineNr"> 869 </span>  <span class="muComment"># eval</span>
-<span id="L870" class="LineNr"> 870 </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-disk
-<span id="L871" class="LineNr"> 871 </span>  <span class="muComment"># setup: screen</span>
-<span id="L872" class="LineNr"> 872 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L873" class="LineNr"> 873 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L874" class="LineNr"> 874 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L875" class="LineNr"> 875 </span>  <span class="muComment">#</span>
-<span id="L876" class="LineNr"> 876 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L877" class="LineNr"> 877 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L878" class="LineNr"> 878 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/pre-0&quot;</span>
-<span id="L879" class="LineNr"> 879 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L865'>test-run-move-cursor-into-trace</a>/pre-0/cursor&quot;</span>
-<span id="L880" class="LineNr"> 880 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/pre-1&quot;</span>
-<span id="L881" class="LineNr"> 881 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L865'>test-run-move-cursor-into-trace</a>/pre-1/cursor&quot;</span>
-<span id="L882" class="LineNr"> 882 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/pre-2&quot;</span>
-<span id="L883" class="LineNr"> 883 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/pre-2/cursor&quot;</span>
-<span id="L884" class="LineNr"> 884 </span>  <span class="muComment"># move cursor into trace</span>
-<span id="L885" class="LineNr"> 885 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L886" class="LineNr"> 886 </span>  <span class="muComment">#</span>
-<span id="L887" class="LineNr"> 887 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L888" class="LineNr"> 888 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L889" class="LineNr"> 889 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/trace-0&quot;</span>
-<span id="L890" class="LineNr"> 890 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L865'>test-run-move-cursor-into-trace</a>/trace-0/cursor&quot;</span>
-<span id="L891" class="LineNr"> 891 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/trace-1&quot;</span>
-<span id="L892" class="LineNr"> 892 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L865'>test-run-move-cursor-into-trace</a>/trace-1/cursor&quot;</span>
-<span id="L893" class="LineNr"> 893 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/trace-2&quot;</span>
-<span id="L894" class="LineNr"> 894 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/trace-2/cursor&quot;</span>
-<span id="L895" class="LineNr"> 895 </span>  <span class="muComment"># move cursor into input</span>
-<span id="L896" class="LineNr"> 896 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L897" class="LineNr"> 897 </span>  <span class="muComment">#</span>
-<span id="L898" class="LineNr"> 898 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L899" class="LineNr"> 899 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L900" class="LineNr"> 900 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/input-0&quot;</span>
-<span id="L901" class="LineNr"> 901 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L865'>test-run-move-cursor-into-trace</a>/input-0/cursor&quot;</span>
-<span id="L902" class="LineNr"> 902 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/input-1&quot;</span>
-<span id="L903" class="LineNr"> 903 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L865'>test-run-move-cursor-into-trace</a>/input-1/cursor&quot;</span>
-<span id="L904" class="LineNr"> 904 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/input-2&quot;</span>
-<span id="L905" class="LineNr"> 905 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L865'>test-run-move-cursor-into-trace</a>/input-2/cursor&quot;</span>
-<span id="L906" class="LineNr"> 906 </span><span class="Delimiter">}</span>
-<span id="L907" class="LineNr"> 907 </span>
-<span id="L908" class="LineNr"> 908 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L908'>has-trace?</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>
-<span id="L909" class="LineNr"> 909 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
-<span id="L910" class="LineNr"> 910 </span>  <span class="PreProc">var</span> trace-ah/eax: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
-<span id="L911" class="LineNr"> 911 </span>  <span class="PreProc">var</span> _trace/eax: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *trace-ah
-<span id="L912" class="LineNr"> 912 </span>  <span class="PreProc">var</span> trace/<span class="muRegEdx">edx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
-<span id="L913" class="LineNr"> 913 </span>  compare trace, <span class="Constant">0</span>
-<span id="L914" class="LineNr"> 914 </span>  <span class="Delimiter">{</span>
-<span id="L915" class="LineNr"> 915 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L916" class="LineNr"> 916 </span>    <a href='../317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;null trace&quot;</span>
-<span id="L917" class="LineNr"> 917 </span>  <span class="Delimiter">}</span>
-<span id="L918" class="LineNr"> 918 </span>  <span class="PreProc">var</span> first-free/<span class="muRegEbx">ebx</span>: (addr int) <span class="Special">&lt;-</span> get trace, first-free
-<span id="L919" class="LineNr"> 919 </span>  compare *first-free, <span class="Constant">0</span>
-<span id="L920" class="LineNr"> 920 </span>  <span class="Delimiter">{</span>
-<span id="L921" class="LineNr"> 921 </span>    <span class="PreProc">break-if-&gt;</span>
-<span id="L922" class="LineNr"> 922 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
-<span id="L923" class="LineNr"> 923 </span>  <span class="Delimiter">}</span>
-<span id="L924" class="LineNr"> 924 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
-<span id="L925" class="LineNr"> 925 </span><span class="Delimiter">}</span>
-<span id="L926" class="LineNr"> 926 </span>
-<span id="L927" class="LineNr"> 927 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L927'>test-run-expand-trace</a></span> <span class="Delimiter">{</span>
-<span id="L928" class="LineNr"> 928 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L929" class="LineNr"> 929 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L930" class="LineNr"> 930 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;12&quot;</span>
-<span id="L931" class="LineNr"> 931 </span>  <span class="muComment"># eval</span>
-<span id="L932" class="LineNr"> 932 </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-disk
-<span id="L933" class="LineNr"> 933 </span>  <span class="muComment"># setup: screen</span>
-<span id="L934" class="LineNr"> 934 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L935" class="LineNr"> 935 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L936" class="LineNr"> 936 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L937" class="LineNr"> 937 </span>  <span class="muComment">#</span>
-<span id="L938" class="LineNr"> 938 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L939" class="LineNr"> 939 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L940" class="LineNr"> 940 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre0-0&quot;</span>
-<span id="L941" class="LineNr"> 941 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L927'>test-run-expand-trace</a>/pre0-0/cursor&quot;</span>
-<span id="L942" class="LineNr"> 942 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre0-1&quot;</span>
-<span id="L943" class="LineNr"> 943 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L927'>test-run-expand-trace</a>/pre0-1/cursor&quot;</span>
-<span id="L944" class="LineNr"> 944 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre0-2&quot;</span>
-<span id="L945" class="LineNr"> 945 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre0-2/cursor&quot;</span>
-<span id="L946" class="LineNr"> 946 </span>  <span class="muComment"># move cursor into trace</span>
-<span id="L947" class="LineNr"> 947 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L948" class="LineNr"> 948 </span>  <span class="muComment">#</span>
-<span id="L949" class="LineNr"> 949 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L950" class="LineNr"> 950 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L951" class="LineNr"> 951 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre1-0&quot;</span>
-<span id="L952" class="LineNr"> 952 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L927'>test-run-expand-trace</a>/pre1-0/cursor&quot;</span>
-<span id="L953" class="LineNr"> 953 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre1-1&quot;</span>
-<span id="L954" class="LineNr"> 954 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L927'>test-run-expand-trace</a>/pre1-1/cursor&quot;</span>
-<span id="L955" class="LineNr"> 955 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre1-2&quot;</span>
-<span id="L956" class="LineNr"> 956 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/pre1-2/cursor&quot;</span>
-<span id="L957" class="LineNr"> 957 </span>  <span class="muComment"># expand</span>
-<span id="L958" class="LineNr"> 958 </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-disk
-<span id="L959" class="LineNr"> 959 </span>  <span class="muComment">#</span>
-<span id="L960" class="LineNr"> 960 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L961" class="LineNr"> 961 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L962" class="LineNr"> 962 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L963" class="LineNr"> 963 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/expand-0&quot;</span>
-<span id="L964" class="LineNr"> 964 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L927'>test-run-expand-trace</a>/expand-0/cursor&quot;</span>
-<span id="L965" class="LineNr"> 965 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 toke&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/expand-1&quot;</span>
-<span id="L966" class="LineNr"> 966 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L927'>test-run-expand-trace</a>/expand-1/cursor&quot;</span>
-<span id="L967" class="LineNr"> 967 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/expand-2&quot;</span>
-<span id="L968" class="LineNr"> 968 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/expand-2/cursor&quot;</span>
-<span id="L969" class="LineNr"> 969 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 inse&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/expand-3&quot;</span>
-<span id="L970" class="LineNr"> 970 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L927'>test-run-expand-trace</a>/expand-3/cursor&quot;</span>
-<span id="L971" class="LineNr"> 971 </span><span class="Delimiter">}</span>
-<span id="L972" class="LineNr"> 972 </span>
-<span id="L973" class="LineNr"> 973 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a></span> <span class="Delimiter">{</span>
-<span id="L974" class="LineNr"> 974 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L975" class="LineNr"> 975 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L976" class="LineNr"> 976 </span>  <span class="muComment"># initialize sandbox with a max-depth of 3</span>
-<span id="L977" class="LineNr"> 977 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;12&quot;</span>
-<span id="L978" class="LineNr"> 978 </span>  <span class="muComment"># eval</span>
-<span id="L979" class="LineNr"> 979 </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-disk
-<span id="L980" class="LineNr"> 980 </span>  <span class="muComment"># setup: screen</span>
-<span id="L981" class="LineNr"> 981 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L982" class="LineNr"> 982 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L983" class="LineNr"> 983 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L984" class="LineNr"> 984 </span>  <span class="muComment">#</span>
-<span id="L985" class="LineNr"> 985 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L986" class="LineNr"> 986 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L987" class="LineNr"> 987 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre0-0&quot;</span>
-<span id="L988" class="LineNr"> 988 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/pre0-0/cursor&quot;</span>
-<span id="L989" class="LineNr"> 989 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre0-1&quot;</span>
-<span id="L990" class="LineNr"> 990 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/pre0-1/cursor&quot;</span>
-<span id="L991" class="LineNr"> 991 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre0-2&quot;</span>
-<span id="L992" class="LineNr"> 992 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre0-2/cursor&quot;</span>
-<span id="L993" class="LineNr"> 993 </span>  <span class="muComment"># move cursor into trace</span>
-<span id="L994" class="LineNr"> 994 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L995" class="LineNr"> 995 </span>  <span class="muComment">#</span>
-<span id="L996" class="LineNr"> 996 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L997" class="LineNr"> 997 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L998" class="LineNr"> 998 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre1-0&quot;</span>
-<span id="L999" class="LineNr"> 999 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/pre1-0/cursor&quot;</span>
-<span id="L1000" class="LineNr">1000 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre1-1&quot;</span>
-<span id="L1001" class="LineNr">1001 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/pre1-1/cursor&quot;</span>
-<span id="L1002" class="LineNr">1002 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre1-2&quot;</span>
-<span id="L1003" class="LineNr">1003 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre1-2/cursor&quot;</span>
-<span id="L1004" class="LineNr">1004 </span>  <span class="muComment"># expand</span>
-<span id="L1005" class="LineNr">1005 </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-disk
-<span id="L1006" class="LineNr">1006 </span>  <span class="muComment">#</span>
-<span id="L1007" class="LineNr">1007 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L1008" class="LineNr">1008 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1009" class="LineNr">1009 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L1010" class="LineNr">1010 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-0&quot;</span>
-<span id="L1011" class="LineNr">1011 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-0/cursor&quot;</span>
-<span id="L1012" class="LineNr">1012 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 toke&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-1&quot;</span>
-<span id="L1013" class="LineNr">1013 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-1/cursor&quot;</span>
-<span id="L1014" class="LineNr">1014 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-2&quot;</span>
-<span id="L1015" class="LineNr">1015 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-2/cursor&quot;</span>
-<span id="L1016" class="LineNr">1016 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 inse&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-2&quot;</span>
-<span id="L1017" class="LineNr">1017 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/pre2-2/cursor&quot;</span>
-<span id="L1018" class="LineNr">1018 </span>  <span class="muComment"># move cursor down and expand</span>
-<span id="L1019" class="LineNr">1019 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1020" class="LineNr">1020 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1021" class="LineNr">1021 </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-disk
-<span id="L1022" class="LineNr">1022 </span>  <span class="muComment">#</span>
-<span id="L1023" class="LineNr">1023 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L1024" class="LineNr">1024 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1025" class="LineNr">1025 </span>  <span class="muComment"># screen looks same as if trace max-depth was really high</span>
-<span id="L1026" class="LineNr">1026 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-0&quot;</span>
-<span id="L1027" class="LineNr">1027 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-0/cursor&quot;</span>
-<span id="L1028" class="LineNr">1028 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 toke&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-1&quot;</span>
-<span id="L1029" class="LineNr">1029 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-1/cursor&quot;</span>
-<span id="L1030" class="LineNr">1030 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; 2 next&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-2&quot;</span>
-<span id="L1031" class="LineNr">1031 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot; ||||||&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-2/cursor&quot;</span>
-<span id="L1032" class="LineNr">1032 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-3&quot;</span>
-<span id="L1033" class="LineNr">1033 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-3/cursor&quot;</span>
-<span id="L1034" class="LineNr">1034 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">5</span>/y, <span class="Constant">&quot; 2 next&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-4&quot;</span>
-<span id="L1035" class="LineNr">1035 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">5</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-4/cursor&quot;</span>
-<span id="L1036" class="LineNr">1036 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">6</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-5&quot;</span>
-<span id="L1037" class="LineNr">1037 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">6</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-5/cursor&quot;</span>
-<span id="L1038" class="LineNr">1038 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">7</span>/y, <span class="Constant">&quot; 2 =&gt; 1&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-6&quot;</span>
-<span id="L1039" class="LineNr">1039 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">7</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L973'>test-run-can-rerun-when-expanding-trace</a>/expand-6/cursor&quot;</span>
-<span id="L1040" class="LineNr">1040 </span><span class="Delimiter">}</span>
-<span id="L1041" class="LineNr">1041 </span>
-<span id="L1042" class="LineNr">1042 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a></span> <span class="Delimiter">{</span>
-<span id="L1043" class="LineNr">1043 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
-<span id="L1044" class="LineNr">1044 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
-<span id="L1045" class="LineNr">1045 </span>  <span class="muComment"># initialize sandbox with a max-depth of 3</span>
-<span id="L1046" class="LineNr">1046 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;7&quot;</span>
-<span id="L1047" class="LineNr">1047 </span>  <span class="muComment"># eval</span>
-<span id="L1048" class="LineNr">1048 </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-disk
-<span id="L1049" class="LineNr">1049 </span>  <span class="muComment"># setup: screen</span>
-<span id="L1050" class="LineNr">1050 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L1051" class="LineNr">1051 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1052" class="LineNr">1052 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
-<span id="L1053" class="LineNr">1053 </span>  <span class="muComment">#</span>
-<span id="L1054" class="LineNr">1054 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1055" class="LineNr">1055 </span>  <span class="muComment"># skip one line of padding</span>
-<span id="L1056" class="LineNr">1056 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre0-0&quot;</span>
-<span id="L1057" class="LineNr">1057 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre0-0/cursor&quot;</span>
-<span id="L1058" class="LineNr">1058 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre0-1&quot;</span>
-<span id="L1059" class="LineNr">1059 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre0-1/cursor&quot;</span>
-<span id="L1060" class="LineNr">1060 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 7                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre0-2&quot;</span>
-<span id="L1061" class="LineNr">1061 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre0-2/cursor&quot;</span>
-<span id="L1062" class="LineNr">1062 </span>  <span class="muComment"># move cursor into trace</span>
-<span id="L1063" class="LineNr">1063 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1064" class="LineNr">1064 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1065" class="LineNr">1065 </span>  <span class="muComment">#</span>
-<span id="L1066" class="LineNr">1066 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre1-0&quot;</span>
-<span id="L1067" class="LineNr">1067 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre1-0/cursor&quot;</span>
-<span id="L1068" class="LineNr">1068 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre1-1&quot;</span>
-<span id="L1069" class="LineNr">1069 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre1-1/cursor&quot;</span>
-<span id="L1070" class="LineNr">1070 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 7                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre1-2&quot;</span>
-<span id="L1071" class="LineNr">1071 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre1-2/cursor&quot;</span>
-<span id="L1072" class="LineNr">1072 </span>  <span class="muComment"># expand</span>
-<span id="L1073" class="LineNr">1073 </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-disk
-<span id="L1074" class="LineNr">1074 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L1075" class="LineNr">1075 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1076" class="LineNr">1076 </span>  <span class="muComment">#</span>
-<span id="L1077" class="LineNr">1077 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-0&quot;</span>
-<span id="L1078" class="LineNr">1078 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-0/cursor&quot;</span>
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-<span id="L1080" class="LineNr">1080 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-1/cursor&quot;</span>
-<span id="L1081" class="LineNr">1081 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-2&quot;</span>
-<span id="L1082" class="LineNr">1082 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-2/cursor&quot;</span>
-<span id="L1083" class="LineNr">1083 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 insert parens       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-3&quot;</span>
-<span id="L1084" class="LineNr">1084 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-3/cursor&quot;</span>
-<span id="L1085" class="LineNr">1085 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">5</span>/y, <span class="Constant">&quot; 1 parse               &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-4&quot;</span>
-<span id="L1086" class="LineNr">1086 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-4/cursor&quot;</span>
-<span id="L1087" class="LineNr">1087 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">6</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-5&quot;</span>
-<span id="L1088" class="LineNr">1088 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-5/cursor&quot;</span>
-<span id="L1089" class="LineNr">1089 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">7</span>/y, <span class="Constant">&quot; 1 transform infix     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-6&quot;</span>
-<span id="L1090" class="LineNr">1090 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-6/cursor&quot;</span>
-<span id="L1091" class="LineNr">1091 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">8</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-7&quot;</span>
-<span id="L1092" class="LineNr">1092 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-7/cursor&quot;</span>
-<span id="L1093" class="LineNr">1093 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">9</span>/y, <span class="Constant">&quot; 1 <a href='macroexpand.mu.html#L1'>macroexpand</a> 7       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-8&quot;</span>
-<span id="L1094" class="LineNr">1094 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-8/cursor&quot;</span>
-<span id="L1095" class="LineNr">1095 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xa</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-9&quot;</span>
-<span id="L1096" class="LineNr">1096 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-9/cursor&quot;</span>
-<span id="L1097" class="LineNr">1097 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xb</span>/y, <span class="Constant">&quot; 1 =&gt; 7                &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-10&quot;</span>
-<span id="L1098" class="LineNr">1098 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre2-10/cursor&quot;</span>
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-<span id="L1101" class="LineNr">1101 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
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-<span id="L1103" class="LineNr">1103 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
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-<span id="L1105" class="LineNr">1105 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1106" class="LineNr">1106 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1107" class="LineNr">1107 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1108" class="LineNr">1108 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1109" class="LineNr">1109 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1110" class="LineNr">1110 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1111" class="LineNr">1111 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1112" class="LineNr">1112 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1113" class="LineNr">1113 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1114" class="LineNr">1114 </span>  <a href='sandbox.mu.html#L453'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
-<span id="L1115" class="LineNr">1115 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
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-<span id="L1119" class="LineNr">1119 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 <a href='tokenize.mu.html#L13'>tokenize</a>            &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-1&quot;</span>
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-<span id="L1123" class="LineNr">1123 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 insert parens       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-3&quot;</span>
-<span id="L1124" class="LineNr">1124 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-3/cursor&quot;</span>
-<span id="L1125" class="LineNr">1125 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">5</span>/y, <span class="Constant">&quot; 1 parse               &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-4&quot;</span>
-<span id="L1126" class="LineNr">1126 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-4/cursor&quot;</span>
-<span id="L1127" class="LineNr">1127 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">6</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-5&quot;</span>
-<span id="L1128" class="LineNr">1128 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-5/cursor&quot;</span>
-<span id="L1129" class="LineNr">1129 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">7</span>/y, <span class="Constant">&quot; 1 transform infix     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-6&quot;</span>
-<span id="L1130" class="LineNr">1130 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-6/cursor&quot;</span>
-<span id="L1131" class="LineNr">1131 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">8</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-7&quot;</span>
-<span id="L1132" class="LineNr">1132 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-7/cursor&quot;</span>
-<span id="L1133" class="LineNr">1133 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">9</span>/y, <span class="Constant">&quot; 1 <a href='macroexpand.mu.html#L1'>macroexpand</a> 7       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-8&quot;</span>
-<span id="L1134" class="LineNr">1134 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-8/cursor&quot;</span>
-<span id="L1135" class="LineNr">1135 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xa</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-9&quot;</span>
-<span id="L1136" class="LineNr">1136 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xa</span>/y, <span class="Constant">&quot; |||                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-9/cursor&quot;</span>
-<span id="L1137" class="LineNr">1137 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xb</span>/y, <span class="Constant">&quot; 1 =&gt; 7                &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-10&quot;</span>
-<span id="L1138" class="LineNr">1138 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/pre3-10/cursor&quot;</span>
-<span id="L1139" class="LineNr">1139 </span>  <span class="muComment"># expand</span>
-<span id="L1140" class="LineNr">1140 </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-disk
-<span id="L1141" class="LineNr">1141 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
-<span id="L1142" class="LineNr">1142 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
-<span id="L1143" class="LineNr">1143 </span>  <span class="muComment"># cursor line is expanded</span>
-<span id="L1144" class="LineNr">1144 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-0&quot;</span>
-<span id="L1145" class="LineNr">1145 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-0/cursor&quot;</span>
-<span id="L1146" class="LineNr">1146 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 <a href='tokenize.mu.html#L13'>tokenize</a>            &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-1&quot;</span>
-<span id="L1147" class="LineNr">1147 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-1/cursor&quot;</span>
-<span id="L1148" class="LineNr">1148 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-2&quot;</span>
-<span id="L1149" class="LineNr">1149 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-2/cursor&quot;</span>
-<span id="L1150" class="LineNr">1150 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 insert parens       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-3&quot;</span>
-<span id="L1151" class="LineNr">1151 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-3/cursor&quot;</span>
-<span id="L1152" class="LineNr">1152 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">5</span>/y, <span class="Constant">&quot; 1 parse               &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-4&quot;</span>
-<span id="L1153" class="LineNr">1153 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-4/cursor&quot;</span>
-<span id="L1154" class="LineNr">1154 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">6</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-5&quot;</span>
-<span id="L1155" class="LineNr">1155 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-5/cursor&quot;</span>
-<span id="L1156" class="LineNr">1156 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">7</span>/y, <span class="Constant">&quot; 1 transform infix     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-6&quot;</span>
-<span id="L1157" class="LineNr">1157 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-6/cursor&quot;</span>
-<span id="L1158" class="LineNr">1158 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">8</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-7&quot;</span>
-<span id="L1159" class="LineNr">1159 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-7/cursor&quot;</span>
-<span id="L1160" class="LineNr">1160 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">9</span>/y, <span class="Constant">&quot; 1 <a href='macroexpand.mu.html#L1'>macroexpand</a> 7       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-8&quot;</span>
-<span id="L1161" class="LineNr">1161 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-8/cursor&quot;</span>
-<span id="L1162" class="LineNr">1162 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xa</span>/y, <span class="Constant">&quot; 2 <a href='macroexpand.mu.html#L48'>macroexpand-iter</a> 7  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-9&quot;</span>
-<span id="L1163" class="LineNr">1163 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xa</span>/y, <span class="Constant">&quot; ||||||||||||||||||||  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-9/cursor&quot;</span>
-<span id="L1164" class="LineNr">1164 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xb</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-10&quot;</span>
-<span id="L1165" class="LineNr">1165 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1042'>test-run-preserves-trace-view-on-rerun</a>/expand-10/cursor&quot;</span>
-<span id="L1166" class="LineNr">1166 </span><span class="Delimiter">}</span>
+<span id="L245" class="LineNr"> 245 </span>      <a href='../501draw-text.mu.html#L84'>draw-code-point-at-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x20</span>/space, <span class="Constant">0x18</span>/fg, <span class="Constant">0</span>/bg
+<span id="L246" class="LineNr"> 246 </span>      x <span class="Special">&lt;-</span> increment
+<span id="L247" class="LineNr"> 247 </span>      <span class="PreProc">loop</span>
+<span id="L248" class="LineNr"> 248 </span>    <span class="Delimiter">}</span>
+<span id="L249" class="LineNr"> 249 </span>    y <span class="Special">&lt;-</span> increment
+<span id="L250" class="LineNr"> 250 </span>    screen-y <span class="Special">&lt;-</span> increment
+<span id="L251" class="LineNr"> 251 </span>    <span class="PreProc">loop</span>
+<span id="L252" class="LineNr"> 252 </span>  <span class="Delimiter">}</span>
+<span id="L253" class="LineNr"> 253 </span>  <span class="PreProc">return</span> screen-y
+<span id="L254" class="LineNr"> 254 </span><span class="Delimiter">}</span>
+<span id="L255" class="LineNr"> 255 </span>
+<span id="L256" class="LineNr"> 256 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L256'>render-screen</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _target-screen: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), xmin: int, ymin: int <span class="Delimiter">{</span>
+<span id="L257" class="LineNr"> 257 </span>  <span class="PreProc">var</span> target-screen/<span class="muRegEsi">esi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _target-screen
+<span id="L258" class="LineNr"> 258 </span>  <a href='../500fake-screen.mu.html#L660'>convert-screen-cells-to-pixels</a> target-screen  <span class="muComment"># might overwrite existing pixel data with screen cells</span>
+<span id="L259" class="LineNr"> 259 </span>                                                <span class="muComment"># overlapping the two is not supported</span>
+<span id="L260" class="LineNr"> 260 </span>  <span class="muComment"># pixel data</span>
+<span id="L261" class="LineNr"> 261 </span>  <span class="Delimiter">{</span>
+<span id="L262" class="LineNr"> 262 </span>    <span class="muComment"># screen top left pixels x y width height</span>
+<span id="L263" class="LineNr"> 263 </span>    <span class="PreProc">var</span> tmp/eax: int <span class="Special">&lt;-</span> copy xmin
+<span id="L264" class="LineNr"> 264 </span>    tmp <span class="Special">&lt;-</span> shift-left <span class="Constant">3</span>/log2-font-width
+<span id="L265" class="LineNr"> 265 </span>    <span class="PreProc">var</span> left: int
+<span id="L266" class="LineNr"> 266 </span>    copy-to left, tmp
+<span id="L267" class="LineNr"> 267 </span>    tmp <span class="Special">&lt;-</span> copy ymin
+<span id="L268" class="LineNr"> 268 </span>    tmp <span class="Special">&lt;-</span> shift-left <span class="Constant">4</span>/log2-font-height
+<span id="L269" class="LineNr"> 269 </span>    <span class="PreProc">var</span> top: int
+<span id="L270" class="LineNr"> 270 </span>    copy-to top, tmp
+<span id="L271" class="LineNr"> 271 </span>    <span class="PreProc">var</span> pixels-ah/eax: (addr handle array byte) <span class="Special">&lt;-</span> get target-screen, pixels
+<span id="L272" class="LineNr"> 272 </span>    <span class="PreProc">var</span> _pixels/eax: (addr array byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *pixels-ah
+<span id="L273" class="LineNr"> 273 </span>    <span class="PreProc">var</span> pixels/<span class="muRegEdi">edi</span>: (addr array byte) <span class="Special">&lt;-</span> copy _pixels
+<span id="L274" class="LineNr"> 274 </span>    compare pixels, <span class="Constant">0</span>
+<span id="L275" class="LineNr"> 275 </span>    <span class="PreProc">break-if-=</span>
+<span id="L276" class="LineNr"> 276 </span>    <span class="PreProc">var</span> y/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L277" class="LineNr"> 277 </span>    <span class="PreProc">var</span> height-addr/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, height
+<span id="L278" class="LineNr"> 278 </span>    <span class="PreProc">var</span> height/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy *height-addr
+<span id="L279" class="LineNr"> 279 </span>    height <span class="Special">&lt;-</span> shift-left <span class="Constant">4</span>/log2-font-height
+<span id="L280" class="LineNr"> 280 </span>    <span class="Delimiter">{</span>
+<span id="L281" class="LineNr"> 281 </span>      compare y, height
+<span id="L282" class="LineNr"> 282 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L283" class="LineNr"> 283 </span>      <span class="PreProc">var</span> width-addr/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get target-screen, width
+<span id="L284" class="LineNr"> 284 </span>      <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy *width-addr
+<span id="L285" class="LineNr"> 285 </span>      width <span class="Special">&lt;-</span> shift-left <span class="Constant">3</span>/log2-font-width
+<span id="L286" class="LineNr"> 286 </span>      <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L287" class="LineNr"> 287 </span>      <span class="Delimiter">{</span>
+<span id="L288" class="LineNr"> 288 </span>        compare x, width
+<span id="L289" class="LineNr"> 289 </span>        <span class="PreProc">break-if-&gt;=</span>
+<span id="L290" class="LineNr"> 290 </span>        <span class="Delimiter">{</span>
+<span id="L291" class="LineNr"> 291 </span>          <span class="PreProc">var</span> idx/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L607'>pixel-index</a> target-screen, x, y
+<span id="L292" class="LineNr"> 292 </span>          <span class="PreProc">var</span> color-addr/<span class="muRegEcx">ecx</span>: (addr byte) <span class="Special">&lt;-</span> index pixels, idx
+<span id="L293" class="LineNr"> 293 </span>          <span class="PreProc">var</span> color/<span class="muRegEcx">ecx</span>: byte <span class="Special">&lt;-</span> copy-byte *color-addr
+<span id="L294" class="LineNr"> 294 </span>          <span class="PreProc">var</span> color2/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy color
+<span id="L295" class="LineNr"> 295 </span>          <span class="PreProc">var</span> x2/eax: int <span class="Special">&lt;-</span> copy x
+<span id="L296" class="LineNr"> 296 </span>          x2 <span class="Special">&lt;-</span> add left
+<span id="L297" class="LineNr"> 297 </span>          <span class="PreProc">var</span> y2/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy y
+<span id="L298" class="LineNr"> 298 </span>          y2 <span class="Special">&lt;-</span> add top
+<span id="L299" class="LineNr"> 299 </span>          <a href='../500fake-screen.mu.html#L557'>pixel</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, x2, y2, color2
+<span id="L300" class="LineNr"> 300 </span>        <span class="Delimiter">}</span>
+<span id="L301" class="LineNr"> 301 </span>        x <span class="Special">&lt;-</span> increment
+<span id="L302" class="LineNr"> 302 </span>        <span class="PreProc">loop</span>
+<span id="L303" class="LineNr"> 303 </span>      <span class="Delimiter">}</span>
+<span id="L304" class="LineNr"> 304 </span>      y <span class="Special">&lt;-</span> increment
+<span id="L305" class="LineNr"> 305 </span>      <span class="PreProc">loop</span>
+<span id="L306" class="LineNr"> 306 </span>    <span class="Delimiter">}</span>
+<span id="L307" class="LineNr"> 307 </span>  <span class="Delimiter">}</span>
+<span id="L308" class="LineNr"> 308 </span><span class="Delimiter">}</span>
+<span id="L309" class="LineNr"> 309 </span>
+<span id="L310" class="LineNr"> 310 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L310'>has-keyboard?</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>
+<span id="L311" class="LineNr"> 311 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L312" class="LineNr"> 312 </span>  <span class="PreProc">var</span> keyboard-obj-cell-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L313" class="LineNr"> 313 </span>  <span class="PreProc">var</span> keyboard-obj-cell/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-cell-ah
+<span id="L314" class="LineNr"> 314 </span>  compare keyboard-obj-cell, <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">var</span> keyboard-obj-cell-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-obj-cell, <span class="PreProc">type</span>
+<span id="L320" class="LineNr"> 320 </span>  compare *keyboard-obj-cell-type, <span class="Constant">6</span>/keyboard
+<span id="L321" class="LineNr"> 321 </span>  <span class="Delimiter">{</span>
+<span id="L322" class="LineNr"> 322 </span>    <span class="PreProc">break-if-=</span>
+<span id="L323" class="LineNr"> 323 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L324" class="LineNr"> 324 </span>  <span class="Delimiter">}</span>
+<span id="L325" class="LineNr"> 325 </span>  <span class="PreProc">var</span> keyboard-obj-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-obj-cell, keyboard-data
+<span id="L326" class="LineNr"> 326 </span>  <span class="PreProc">var</span> _keyboard-obj/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-ah
+<span id="L327" class="LineNr"> 327 </span>  <span class="PreProc">var</span> keyboard-obj/<span class="muRegEdx">edx</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard-obj
+<span id="L328" class="LineNr"> 328 </span>  compare keyboard-obj, <span class="Constant">0</span>
+<span id="L329" class="LineNr"> 329 </span>  <span class="Delimiter">{</span>
+<span id="L330" class="LineNr"> 330 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L331" class="LineNr"> 331 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L332" class="LineNr"> 332 </span>  <span class="Delimiter">}</span>
+<span id="L333" class="LineNr"> 333 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L334" class="LineNr"> 334 </span><span class="Delimiter">}</span>
+<span id="L335" class="LineNr"> 335 </span>
+<span id="L336" class="LineNr"> 336 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L336'>maybe-render-keyboard</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), xmin: int, ymin: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L337" class="LineNr"> 337 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L338" class="LineNr"> 338 </span>  <span class="PreProc">var</span> keyboard-obj-cell-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L339" class="LineNr"> 339 </span>  <span class="PreProc">var</span> keyboard-obj-cell/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-cell-ah
+<span id="L340" class="LineNr"> 340 </span>  compare keyboard-obj-cell, <span class="Constant">0</span>
+<span id="L341" class="LineNr"> 341 </span>  <span class="Delimiter">{</span>
+<span id="L342" class="LineNr"> 342 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L343" class="LineNr"> 343 </span>    <span class="PreProc">return</span> ymin
+<span id="L344" class="LineNr"> 344 </span>  <span class="Delimiter">}</span>
+<span id="L345" class="LineNr"> 345 </span>  <span class="PreProc">var</span> keyboard-obj-cell-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get keyboard-obj-cell, <span class="PreProc">type</span>
+<span id="L346" class="LineNr"> 346 </span>  compare *keyboard-obj-cell-type, <span class="Constant">6</span>/keyboard
+<span id="L347" class="LineNr"> 347 </span>  <span class="Delimiter">{</span>
+<span id="L348" class="LineNr"> 348 </span>    <span class="PreProc">break-if-=</span>
+<span id="L349" class="LineNr"> 349 </span>    <span class="PreProc">return</span> ymin  <span class="muComment"># silently give up on rendering the keyboard</span>
+<span id="L350" class="LineNr"> 350 </span>  <span class="Delimiter">}</span>
+<span id="L351" class="LineNr"> 351 </span>  <span class="PreProc">var</span> keyboard-obj-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get keyboard-obj-cell, keyboard-data
+<span id="L352" class="LineNr"> 352 </span>  <span class="PreProc">var</span> _keyboard-obj/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-obj-ah
+<span id="L353" class="LineNr"> 353 </span>  <span class="PreProc">var</span> keyboard-obj/<span class="muRegEdx">edx</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard-obj
+<span id="L354" class="LineNr"> 354 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L355" class="LineNr"> 355 </span>  y <span class="Special">&lt;-</span> increment  <span class="muComment"># padding</span>
+<span id="L356" class="LineNr"> 356 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;keyboard: &quot;</span>, xmin, <span class="Constant">0x99</span>/xmax, y, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L357" class="LineNr"> 357 </span>  <span class="PreProc">var</span> cursor-in-keyboard?/<span class="muRegEsi">esi</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L358" class="LineNr"> 358 </span>  y <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L363'>render-keyboard</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, keyboard-obj, x, y, *cursor-in-keyboard?
+<span id="L359" class="LineNr"> 359 </span>  y <span class="Special">&lt;-</span> increment  <span class="muComment"># padding</span>
+<span id="L360" class="LineNr"> 360 </span>  <span class="PreProc">return</span> y
+<span id="L361" class="LineNr"> 361 </span><span class="Delimiter">}</span>
+<span id="L362" class="LineNr"> 362 </span>
+<span id="L363" class="LineNr"> 363 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L363'>render-keyboard</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _keyboard: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>), xmin: int, ymin: int, render-cursor?: boolean<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L364" class="LineNr"> 364 </span>  <span class="PreProc">var</span> keyboard/<span class="muRegEsi">esi</span>: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> copy _keyboard
+<span id="L365" class="LineNr"> 365 </span>  <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0x10</span>/keyboard-capacity
+<span id="L366" class="LineNr"> 366 </span>  <span class="PreProc">var</span> y/<span class="muRegEdi">edi</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L367" class="LineNr"> 367 </span>  <span class="muComment"># keyboard</span>
+<span id="L368" class="LineNr"> 368 </span>  <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy xmin
+<span id="L369" class="LineNr"> 369 </span>  <span class="PreProc">var</span> xmax/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy x
+<span id="L370" class="LineNr"> 370 </span>  xmax <span class="Special">&lt;-</span> add <span class="Constant">0x10</span>
+<span id="L371" class="LineNr"> 371 </span>  <span class="PreProc">var</span> ymax/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy ymin
+<span id="L372" class="LineNr"> 372 </span>  ymax <span class="Special">&lt;-</span> add <span class="Constant">1</span>
+<span id="L373" class="LineNr"> 373 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, x, y, xmax, ymax, <span class="Constant">0</span>/bg
+<span id="L374" class="LineNr"> 374 </span>  x <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L417'>render-gap-buffer</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, keyboard, x, y, render-cursor?, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L375" class="LineNr"> 375 </span>  y <span class="Special">&lt;-</span> increment
+<span id="L376" class="LineNr"> 376 </span>  <span class="PreProc">return</span> y
+<span id="L377" class="LineNr"> 377 </span><span class="Delimiter">}</span>
+<span id="L378" class="LineNr"> 378 </span>
+<span id="L379" class="LineNr"> 379 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L379'>print-screen-cell-of-fake-screen</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _target: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), x: int, y: int <span class="Delimiter">{</span>
+<span id="L380" class="LineNr"> 380 </span>  <span class="PreProc">var</span> target/<span class="muRegEcx">ecx</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> copy _target
+<span id="L381" class="LineNr"> 381 </span>  <span class="PreProc">var</span> data-ah/eax: (addr handle array <a href='../500fake-screen.mu.html#L25'>screen-cell</a>) <span class="Special">&lt;-</span> get target, data
+<span id="L382" class="LineNr"> 382 </span>  <span class="PreProc">var</span> data/eax: (addr array <a href='../500fake-screen.mu.html#L25'>screen-cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
+<span id="L383" class="LineNr"> 383 </span>  <span class="PreProc">var</span> index/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L221'>screen-cell-index</a> target, x, y
+<span id="L384" class="LineNr"> 384 </span>  <span class="PreProc">var</span> offset/<span class="muRegEcx">ecx</span>: (offset <a href='../500fake-screen.mu.html#L25'>screen-cell</a>) <span class="Special">&lt;-</span> compute-offset data, index
+<span id="L385" class="LineNr"> 385 </span>  <span class="PreProc">var</span> src-cell/<span class="muRegEsi">esi</span>: (addr <a href='../500fake-screen.mu.html#L25'>screen-cell</a>) <span class="Special">&lt;-</span> index data, offset
+<span id="L386" class="LineNr"> 386 </span>  <span class="PreProc">var</span> src-code-point/eax: (addr code-point) <span class="Special">&lt;-</span> get src-cell, data
+<span id="L387" class="LineNr"> 387 </span>  <span class="PreProc">var</span> src-color/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get src-cell, color
+<span id="L388" class="LineNr"> 388 </span>  <span class="PreProc">var</span> src-background-color/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get src-cell, background-color
+<span id="L389" class="LineNr"> 389 </span>  <a href='../501draw-text.mu.html#L84'>draw-code-point-at-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, *src-code-point, *src-color, *src-background-color
+<span id="L390" class="LineNr"> 390 </span><span class="Delimiter">}</span>
+<span id="L391" class="LineNr"> 391 </span>
+<span id="L392" class="LineNr"> 392 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L392'>render-sandbox-edit-menu</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Delimiter">{</span>
+<span id="L393" class="LineNr"> 393 </span>  <span class="PreProc">var</span> _width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L394" class="LineNr"> 394 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L395" class="LineNr"> 395 </span>  _width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L396" class="LineNr"> 396 </span>  <span class="PreProc">var</span> width/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy _width
+<span id="L397" class="LineNr"> 397 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
+<span id="L398" class="LineNr"> 398 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L399" class="LineNr"> 399 </span>  <span class="PreProc">var</span> height/<span class="muRegEbx">ebx</span>: int <span class="Special">&lt;-</span> copy y
+<span id="L400" class="LineNr"> 400 </span>  height <span class="Special">&lt;-</span> increment
+<span id="L401" class="LineNr"> 401 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L402" class="LineNr"> 402 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L403" class="LineNr"> 403 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L404" class="LineNr"> 404 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L405" class="LineNr"> 405 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L406" class="LineNr"> 406 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L407" class="LineNr"> 407 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L408" class="LineNr"> 408 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L409" class="LineNr"> 409 </span>  $render-sandbox-edit-menu:render-ctrl-m: <span class="Delimiter">{</span>
+<span id="L410" class="LineNr"> 410 </span>    <span class="PreProc">var</span> self/eax: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L411" class="LineNr"> 411 </span>    <span class="PreProc">var</span> <a href='sandbox.mu.html#L907'>has-trace?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L907'>has-trace?</a> self
+<span id="L412" class="LineNr"> 412 </span>    compare <a href='sandbox.mu.html#L907'>has-trace?</a>, <span class="Constant">0</span>/false
+<span id="L413" class="LineNr"> 413 </span>    <span class="Delimiter">{</span>
+<span id="L414" class="LineNr"> 414 </span>      <span class="PreProc">break-if-=</span>
+<span id="L415" class="LineNr"> 415 </span>      <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x38</span>/bg=trace
+<span id="L416" class="LineNr"> 416 </span>      <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to trace  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L417" class="LineNr"> 417 </span>      <span class="PreProc">break</span> $render-sandbox-edit-menu:render-ctrl-m
+<span id="L418" class="LineNr"> 418 </span>    <span class="Delimiter">}</span>
+<span id="L419" class="LineNr"> 419 </span>    <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">3</span>/bg=keyboard
+<span id="L420" class="LineNr"> 420 </span>    <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to keyboard  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L421" class="LineNr"> 421 </span>  <span class="Delimiter">}</span>
+<span id="L422" class="LineNr"> 422 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^a &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L423" class="LineNr"> 423 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;&lt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L424" class="LineNr"> 424 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^b &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L425" class="LineNr"> 425 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &lt;word  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L426" class="LineNr"> 426 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^f &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L427" class="LineNr"> 427 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; word&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L428" class="LineNr"> 428 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^e &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L429" class="LineNr"> 429 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &gt;&gt;  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L430" class="LineNr"> 430 </span><span class="Delimiter">}</span>
+<span id="L431" class="LineNr"> 431 </span>
+<span id="L432" class="LineNr"> 432 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L432'>render-keyboard-menu</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Delimiter">{</span>
+<span id="L433" class="LineNr"> 433 </span>  <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L434" class="LineNr"> 434 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L435" class="LineNr"> 435 </span>  width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L436" class="LineNr"> 436 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
+<span id="L437" class="LineNr"> 437 </span>  y <span class="Special">&lt;-</span> decrement
+<span id="L438" class="LineNr"> 438 </span>  <span class="PreProc">var</span> height/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy y
+<span id="L439" class="LineNr"> 439 </span>  height <span class="Special">&lt;-</span> increment
+<span id="L440" class="LineNr"> 440 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L441" class="LineNr"> 441 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L442" class="LineNr"> 442 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L443" class="LineNr"> 443 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L444" class="LineNr"> 444 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L445" class="LineNr"> 445 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L446" class="LineNr"> 446 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L447" class="LineNr"> 447 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L448" class="LineNr"> 448 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg
+<span id="L449" class="LineNr"> 449 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to <a href='sandbox.mu.html#L1'>sandbox</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L450" class="LineNr"> 450 </span><span class="Delimiter">}</span>
+<span id="L451" class="LineNr"> 451 </span>
+<span id="L452" class="LineNr"> 452 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L452'>edit-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), key: grapheme, globals: (addr <a href='global.mu.html#L1'>global-table</a>), data-disk: (addr disk) <span class="Delimiter">{</span>
+<span id="L453" class="LineNr"> 453 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L454" class="LineNr"> 454 </span>  <span class="muComment"># ctrl-s</span>
+<span id="L455" class="LineNr"> 455 </span>  <span class="Delimiter">{</span>
+<span id="L456" class="LineNr"> 456 </span>    compare key, <span class="Constant">0x13</span>/ctrl-s
+<span id="L457" class="LineNr"> 457 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L458" class="LineNr"> 458 </span>    <span class="muComment"># if cursor is in trace, skip</span>
+<span id="L459" class="LineNr"> 459 </span>    <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L460" class="LineNr"> 460 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L461" class="LineNr"> 461 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L462" class="LineNr"> 462 </span>    <span class="muComment"># minor gotcha here: any bindings created later in this iteration won't be</span>
+<span id="L463" class="LineNr"> 463 </span>    <span class="muComment"># persisted until the next call to ctrl-s.</span>
+<span id="L464" class="LineNr"> 464 </span>    <a href='environment.mu.html#L1031'>store-state</a> data-disk, self, globals
+<span id="L465" class="LineNr"> 465 </span>    <span class="muComment">#</span>
+<span id="L466" class="LineNr"> 466 </span><span class="CommentedCode">#?     turn-on-debug-print</span>
+<span id="L467" class="LineNr"> 467 </span>    <a href='sandbox.mu.html#L597'>run-sandbox</a> self, globals
+<span id="L468" class="LineNr"> 468 </span>    <span class="PreProc">return</span>
+<span id="L469" class="LineNr"> 469 </span>  <span class="Delimiter">}</span>
+<span id="L470" class="LineNr"> 470 </span>  <span class="muComment"># ctrl-m</span>
+<span id="L471" class="LineNr"> 471 </span>  <span class="Delimiter">{</span>
+<span id="L472" class="LineNr"> 472 </span>    compare key, <span class="Constant">0xd</span>/ctrl-m
+<span id="L473" class="LineNr"> 473 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L474" class="LineNr"> 474 </span>    <span class="muComment"># if cursor in data, switch to trace or fall through to keyboard</span>
+<span id="L475" class="LineNr"> 475 </span>    <span class="Delimiter">{</span>
+<span id="L476" class="LineNr"> 476 </span>      <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L477" class="LineNr"> 477 </span>      compare *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L478" class="LineNr"> 478 </span>      <span class="PreProc">break-if-=</span>
+<span id="L479" class="LineNr"> 479 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L907'>has-trace?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L907'>has-trace?</a> self
+<span id="L480" class="LineNr"> 480 </span>      compare <a href='sandbox.mu.html#L907'>has-trace?</a>, <span class="Constant">0</span>/false
+<span id="L481" class="LineNr"> 481 </span>      <span class="Delimiter">{</span>
+<span id="L482" class="LineNr"> 482 </span>        <span class="PreProc">break-if-=</span>
+<span id="L483" class="LineNr"> 483 </span>        <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L484" class="LineNr"> 484 </span>        copy-to *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L485" class="LineNr"> 485 </span>        <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L486" class="LineNr"> 486 </span>        copy-to *cursor-in-trace?, <span class="Constant">1</span>/false
+<span id="L487" class="LineNr"> 487 </span>        <span class="PreProc">return</span>
+<span id="L488" class="LineNr"> 488 </span>      <span class="Delimiter">}</span>
+<span id="L489" class="LineNr"> 489 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L310'>has-keyboard?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L310'>has-keyboard?</a> self
+<span id="L490" class="LineNr"> 490 </span>      compare <a href='sandbox.mu.html#L310'>has-keyboard?</a>, <span class="Constant">0</span>/false
+<span id="L491" class="LineNr"> 491 </span>      <span class="Delimiter">{</span>
+<span id="L492" class="LineNr"> 492 </span>        <span class="PreProc">break-if-=</span>
+<span id="L493" class="LineNr"> 493 </span>        <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L494" class="LineNr"> 494 </span>        copy-to *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L495" class="LineNr"> 495 </span>        <span class="PreProc">var</span> cursor-in-keyboard?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L496" class="LineNr"> 496 </span>        copy-to *cursor-in-keyboard?, <span class="Constant">1</span>/false
+<span id="L497" class="LineNr"> 497 </span>        <span class="PreProc">return</span>
+<span id="L498" class="LineNr"> 498 </span>      <span class="Delimiter">}</span>
+<span id="L499" class="LineNr"> 499 </span>      <span class="PreProc">return</span>
+<span id="L500" class="LineNr"> 500 </span>    <span class="Delimiter">}</span>
+<span id="L501" class="LineNr"> 501 </span>    <span class="muComment"># if cursor in trace, switch to keyboard or fall through to data</span>
+<span id="L502" class="LineNr"> 502 </span>    <span class="Delimiter">{</span>
+<span id="L503" class="LineNr"> 503 </span>      <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L504" class="LineNr"> 504 </span>      compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L505" class="LineNr"> 505 </span>      <span class="PreProc">break-if-=</span>
+<span id="L506" class="LineNr"> 506 </span>      copy-to *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L507" class="LineNr"> 507 </span>      <span class="PreProc">var</span> cursor-target/<span class="muRegEcx">ecx</span>: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L508" class="LineNr"> 508 </span>      <span class="PreProc">var</span> <a href='sandbox.mu.html#L310'>has-keyboard?</a>/eax: boolean <span class="Special">&lt;-</span> <a href='sandbox.mu.html#L310'>has-keyboard?</a> self
+<span id="L509" class="LineNr"> 509 </span>      compare <a href='sandbox.mu.html#L310'>has-keyboard?</a>, <span class="Constant">0</span>/false
+<span id="L510" class="LineNr"> 510 </span>      <span class="Delimiter">{</span>
+<span id="L511" class="LineNr"> 511 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L512" class="LineNr"> 512 </span>        cursor-target <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L513" class="LineNr"> 513 </span>      <span class="Delimiter">}</span>
+<span id="L514" class="LineNr"> 514 </span>      copy-to *cursor-target, <span class="Constant">1</span>/true
+<span id="L515" class="LineNr"> 515 </span>      <span class="PreProc">return</span>
+<span id="L516" class="LineNr"> 516 </span>    <span class="Delimiter">}</span>
+<span id="L517" class="LineNr"> 517 </span>    <span class="muComment"># otherwise if cursor in keyboard, switch to data</span>
+<span id="L518" class="LineNr"> 518 </span>    <span class="Delimiter">{</span>
+<span id="L519" class="LineNr"> 519 </span>      <span class="PreProc">var</span> cursor-in-keyboard?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L520" class="LineNr"> 520 </span>      compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
+<span id="L521" class="LineNr"> 521 </span>      <span class="PreProc">break-if-=</span>
+<span id="L522" class="LineNr"> 522 </span>      copy-to *cursor-in-keyboard?, <span class="Constant">0</span>/false
+<span id="L523" class="LineNr"> 523 </span>      <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L524" class="LineNr"> 524 </span>      copy-to *cursor-in-data?, <span class="Constant">1</span>/true
+<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="PreProc">return</span>
+<span id="L528" class="LineNr"> 528 </span>  <span class="Delimiter">}</span>
+<span id="L529" class="LineNr"> 529 </span>  <span class="muComment"># if cursor in data, send key to data</span>
+<span id="L530" class="LineNr"> 530 </span>  <span class="Delimiter">{</span>
+<span id="L531" class="LineNr"> 531 </span>    <span class="PreProc">var</span> cursor-in-data?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-data?
+<span id="L532" class="LineNr"> 532 </span>    compare *cursor-in-data?, <span class="Constant">0</span>/false
+<span id="L533" class="LineNr"> 533 </span>    <span class="PreProc">break-if-=</span>
+<span id="L534" class="LineNr"> 534 </span>    <span class="PreProc">var</span> data-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L535" class="LineNr"> 535 </span>    <span class="PreProc">var</span> data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
+<span id="L536" class="LineNr"> 536 </span>    <a href='../514gap-buffer.mu.html#L1204'>edit-gap-buffer</a> data, key
+<span id="L537" class="LineNr"> 537 </span>    <span class="PreProc">return</span>
+<span id="L538" class="LineNr"> 538 </span>  <span class="Delimiter">}</span>
+<span id="L539" class="LineNr"> 539 </span>  <span class="muComment"># if cursor in keyboard, send key to keyboard</span>
+<span id="L540" class="LineNr"> 540 </span>  <span class="Delimiter">{</span>
+<span id="L541" class="LineNr"> 541 </span>    <span class="PreProc">var</span> cursor-in-keyboard?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-keyboard?
+<span id="L542" class="LineNr"> 542 </span>    compare *cursor-in-keyboard?, <span class="Constant">0</span>/false
+<span id="L543" class="LineNr"> 543 </span>    <span class="PreProc">break-if-=</span>
+<span id="L544" class="LineNr"> 544 </span>    <span class="PreProc">var</span> inner-keyboard-var-ah/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L545" class="LineNr"> 545 </span>    <span class="PreProc">var</span> inner-keyboard-var/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *inner-keyboard-var-ah
+<span id="L546" class="LineNr"> 546 </span>    compare inner-keyboard-var, <span class="Constant">0</span>
+<span id="L547" class="LineNr"> 547 </span>    <span class="Delimiter">{</span>
+<span id="L548" class="LineNr"> 548 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L549" class="LineNr"> 549 </span>      <span class="PreProc">return</span>
+<span id="L550" class="LineNr"> 550 </span>    <span class="Delimiter">}</span>
+<span id="L551" class="LineNr"> 551 </span>    <span class="PreProc">var</span> inner-keyboard-var-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get inner-keyboard-var, <span class="PreProc">type</span>
+<span id="L552" class="LineNr"> 552 </span>    compare *inner-keyboard-var-type, <span class="Constant">6</span>/keyboard
+<span id="L553" class="LineNr"> 553 </span>    <span class="Delimiter">{</span>
+<span id="L554" class="LineNr"> 554 </span>      <span class="PreProc">break-if-=</span>
+<span id="L555" class="LineNr"> 555 </span>      <span class="PreProc">return</span>
+<span id="L556" class="LineNr"> 556 </span>    <span class="Delimiter">}</span>
+<span id="L557" class="LineNr"> 557 </span>    <span class="PreProc">var</span> keyboard-ah/eax: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get inner-keyboard-var, keyboard-data
+<span id="L558" class="LineNr"> 558 </span>    <span class="PreProc">var</span> keyboard/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *keyboard-ah
+<span id="L559" class="LineNr"> 559 </span>    <a href='../514gap-buffer.mu.html#L1204'>edit-gap-buffer</a> keyboard, key
+<span id="L560" class="LineNr"> 560 </span>    <span class="PreProc">return</span>
+<span id="L561" class="LineNr"> 561 </span>  <span class="Delimiter">}</span>
+<span id="L562" class="LineNr"> 562 </span>  <span class="muComment"># if cursor in trace, send key to trace</span>
+<span id="L563" class="LineNr"> 563 </span>  <span class="Delimiter">{</span>
+<span id="L564" class="LineNr"> 564 </span>    <span class="PreProc">var</span> cursor-in-trace?/eax: (addr boolean) <span class="Special">&lt;-</span> get self, cursor-in-trace?
+<span id="L565" class="LineNr"> 565 </span>    compare *cursor-in-trace?, <span class="Constant">0</span>/false
+<span id="L566" class="LineNr"> 566 </span>    <span class="PreProc">break-if-=</span>
+<span id="L567" class="LineNr"> 567 </span>    <span class="PreProc">var</span> trace-ah/eax: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L568" class="LineNr"> 568 </span>    <span class="PreProc">var</span> trace/eax: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *trace-ah
+<span id="L569" class="LineNr"> 569 </span>    <span class="muComment"># if expanding the trace, first check if we need to run the sandbox again with a deeper trace</span>
+<span id="L570" class="LineNr"> 570 </span>    <span class="Delimiter">{</span>
+<span id="L571" class="LineNr"> 571 </span>      compare key, <span class="Constant">0xa</span>/newline
+<span id="L572" class="LineNr"> 572 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L573" class="LineNr"> 573 </span>      <span class="Delimiter">{</span>
+<span id="L574" class="LineNr"> 574 </span>        <span class="PreProc">var</span> need-rerun?/eax: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L1139'>cursor-too-deep?</a> trace
+<span id="L575" class="LineNr"> 575 </span>        compare need-rerun?, <span class="Constant">0</span>/false
+<span id="L576" class="LineNr"> 576 </span>      <span class="Delimiter">}</span>
+<span id="L577" class="LineNr"> 577 </span>      <span class="PreProc">break-if-=</span>
+<span id="L578" class="LineNr"> 578 </span><span class="CommentedCode">#?       draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, &quot;rerun&quot;, 7/fg 0/bg</span>
+<span id="L579" class="LineNr"> 579 </span>      <span class="muComment"># save trace lines at various cached indices</span>
+<span id="L580" class="LineNr"> 580 </span>      <span class="PreProc">var</span> save: <a href='trace.mu.html#L50'>trace-index-stash</a>
+<span id="L581" class="LineNr"> 581 </span>      <span class="PreProc">var</span> save-addr/<span class="muRegEcx">ecx</span>: (addr <a href='trace.mu.html#L50'>trace-index-stash</a>) <span class="Special">&lt;-</span> address save
+<span id="L582" class="LineNr"> 582 </span>      <a href='trace.mu.html#L2098'>save-indices</a> trace, save-addr
+<span id="L583" class="LineNr"> 583 </span>      <span class="muComment"># rerun at higher depth</span>
+<span id="L584" class="LineNr"> 584 </span>      <span class="PreProc">var</span> max-depth-addr/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get trace, max-depth
+<span id="L585" class="LineNr"> 585 </span>      increment *max-depth-addr
+<span id="L586" class="LineNr"> 586 </span>      <a href='sandbox.mu.html#L597'>run-sandbox</a> self, globals
+<span id="L587" class="LineNr"> 587 </span>      <span class="muComment"># recompute cached indices</span>
+<span id="L588" class="LineNr"> 588 </span>      <a href='trace.mu.html#L625'>recompute-all-visible-lines</a> trace
+<span id="L589" class="LineNr"> 589 </span>      <span class="PreProc">var</span> save-addr/<span class="muRegEcx">ecx</span>: (addr <a href='trace.mu.html#L50'>trace-index-stash</a>) <span class="Special">&lt;-</span> address save
+<span id="L590" class="LineNr"> 590 </span>      <a href='trace.mu.html#L2144'>restore-indices</a> trace, save-addr
+<span id="L591" class="LineNr"> 591 </span>    <span class="Delimiter">}</span>
+<span id="L592" class="LineNr"> 592 </span>    <a href='trace.mu.html#L907'>edit-trace</a> trace, key
+<span id="L593" class="LineNr"> 593 </span>    <span class="PreProc">return</span>
+<span id="L594" class="LineNr"> 594 </span>  <span class="Delimiter">}</span>
+<span id="L595" class="LineNr"> 595 </span><span class="Delimiter">}</span>
+<span id="L596" class="LineNr"> 596 </span>
+<span id="L597" class="LineNr"> 597 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L597'>run-sandbox</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>), globals: (addr <a href='global.mu.html#L1'>global-table</a>) <span class="Delimiter">{</span>
+<span id="L598" class="LineNr"> 598 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L599" class="LineNr"> 599 </span>  <span class="PreProc">var</span> data-ah/<span class="muRegEcx">ecx</span>: (addr handle <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> get self, data
+<span id="L600" class="LineNr"> 600 </span>  <span class="PreProc">var</span> eval-result-h: (handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L601" class="LineNr"> 601 </span>  <span class="PreProc">var</span> eval-result-ah/<span class="muRegEdi">edi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address eval-result-h
+<span id="L602" class="LineNr"> 602 </span>  <span class="PreProc">var</span> definitions-created-storage: (stream int <span class="Constant">0x10</span>)
+<span id="L603" class="LineNr"> 603 </span>  <span class="PreProc">var</span> definitions-created/<span class="muRegEdx">edx</span>: (addr stream int) <span class="Special">&lt;-</span> address definitions-created-storage
+<span id="L604" class="LineNr"> 604 </span>  <span class="PreProc">var</span> trace-ah/eax: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L605" class="LineNr"> 605 </span>  <span class="PreProc">var</span> _trace/eax: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *trace-ah
+<span id="L606" class="LineNr"> 606 </span>  <span class="PreProc">var</span> trace/<span class="muRegEbx">ebx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
+<span id="L607" class="LineNr"> 607 </span>  <a href='trace.mu.html#L80'>clear-trace</a> trace
+<span id="L608" class="LineNr"> 608 </span>  <span class="PreProc">var</span> tmp/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, screen-var
+<span id="L609" class="LineNr"> 609 </span>  <span class="PreProc">var</span> inner-screen-var: (addr handle <a href='cell.mu.html#L1'>cell</a>)
+<span id="L610" class="LineNr"> 610 </span>  copy-to inner-screen-var, tmp
+<span id="L611" class="LineNr"> 611 </span>  <a href='cell.mu.html#L225'>clear-screen-var</a> inner-screen-var
+<span id="L612" class="LineNr"> 612 </span>  <span class="PreProc">var</span> inner-keyboard-var/eax: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get self, keyboard-var
+<span id="L613" class="LineNr"> 613 </span>  <a href='cell.mu.html#L267'>rewind-keyboard-var</a> inner-keyboard-var  <span class="muComment"># don't clear keys from before</span>
+<span id="L614" class="LineNr"> 614 </span>  <span class="muComment">#</span>
+<span id="L615" class="LineNr"> 615 </span>  <a href='environment.mu.html#L388'>read-and-evaluate-and-save-gap-buffer-to-globals</a> data-ah, eval-result-ah, globals, definitions-created, trace, inner-screen-var, inner-keyboard-var
+<span id="L616" class="LineNr"> 616 </span>  <span class="PreProc">var</span> error?/eax: boolean <span class="Special">&lt;-</span> <a href='trace.mu.html#L94'>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>  <span class="muComment"># if necessary, initialize a new gap-buffer for sandbox</span>
+<span id="L623" class="LineNr"> 623 </span>  <span class="Delimiter">{</span>
+<span id="L624" class="LineNr"> 624 </span>    compare globals, <span class="Constant">0</span>
+<span id="L625" class="LineNr"> 625 </span>    <span class="PreProc">break-if-=</span>
+<span id="L626" class="LineNr"> 626 </span>    <a href='../106stream.subx.html#L59'>rewind-stream</a> definitions-created
+<span id="L627" class="LineNr"> 627 </span>    <span class="PreProc">var</span> no-definitions?/eax: boolean <span class="Special">&lt;-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> definitions-created
+<span id="L628" class="LineNr"> 628 </span>    compare no-definitions?, <span class="Constant">0</span>/false
+<span id="L629" class="LineNr"> 629 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L630" class="LineNr"> 630 </span>    <span class="muComment"># some definitions were created; clear the gap buffer</span>
+<span id="L631" class="LineNr"> 631 </span>    <span class="PreProc">var</span> data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
+<span id="L632" class="LineNr"> 632 </span>    <span class="PreProc">var</span> capacity/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L43'>gap-buffer-capacity</a> data
+<span id="L633" class="LineNr"> 633 </span>    <a href='../120allocate.subx.html#L43'>allocate</a> data-ah
+<span id="L634" class="LineNr"> 634 </span>    <span class="PreProc">var</span> new-data/eax: (addr <a href='../514gap-buffer.mu.html#L3'>gap-buffer</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *data-ah
+<span id="L635" class="LineNr"> 635 </span>    <a href='../514gap-buffer.mu.html#L11'>initialize-gap-buffer</a> new-data, capacity
+<span id="L636" class="LineNr"> 636 </span>  <span class="Delimiter">}</span>
+<span id="L637" class="LineNr"> 637 </span>  <span class="muComment"># print</span>
+<span id="L638" class="LineNr"> 638 </span>  <span class="PreProc">var</span> value-ah/eax: (addr handle stream byte) <span class="Special">&lt;-</span> get self, value
+<span id="L639" class="LineNr"> 639 </span>  <span class="PreProc">var</span> value/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *value-ah
+<span id="L640" class="LineNr"> 640 </span>  <a href='../106stream.subx.html#L20'>clear-stream</a> value
+<span id="L641" class="LineNr"> 641 </span>  <a href='print.mu.html#L7'>print-cell</a> eval-result-ah, value, trace
+<span id="L642" class="LineNr"> 642 </span><span class="Delimiter">}</span>
+<span id="L643" class="LineNr"> 643 </span>
+<span id="L644" class="LineNr"> 644 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L644'>test-run-integer</a></span> <span class="Delimiter">{</span>
+<span id="L645" class="LineNr"> 645 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L646" class="LineNr"> 646 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L647" class="LineNr"> 647 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;1&quot;</span>
+<span id="L648" class="LineNr"> 648 </span>  <span class="muComment"># eval</span>
+<span id="L649" class="LineNr"> 649 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L650" class="LineNr"> 650 </span>  <span class="muComment"># setup: screen</span>
+<span id="L651" class="LineNr"> 651 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L652" class="LineNr"> 652 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L653" class="LineNr"> 653 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L654" class="LineNr"> 654 </span>  <span class="muComment">#</span>
+<span id="L655" class="LineNr"> 655 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L656" class="LineNr"> 656 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L657" class="LineNr"> 657 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; 1    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L644'>test-run-integer</a>/0&quot;</span>
+<span id="L658" class="LineNr"> 658 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L644'>test-run-integer</a>/1&quot;</span>
+<span id="L659" class="LineNr"> 659 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L644'>test-run-integer</a>/2&quot;</span>
+<span id="L660" class="LineNr"> 660 </span><span class="Delimiter">}</span>
+<span id="L661" class="LineNr"> 661 </span>
+<span id="L662" class="LineNr"> 662 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L662'>test-run-negative-integer</a></span> <span class="Delimiter">{</span>
+<span id="L663" class="LineNr"> 663 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L664" class="LineNr"> 664 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L665" class="LineNr"> 665 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;-1&quot;</span>
+<span id="L666" class="LineNr"> 666 </span>  <span class="muComment"># eval</span>
+<span id="L667" class="LineNr"> 667 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L668" class="LineNr"> 668 </span>  <span class="muComment"># setup: screen</span>
+<span id="L669" class="LineNr"> 669 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L670" class="LineNr"> 670 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L671" class="LineNr"> 671 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L672" class="LineNr"> 672 </span>  <span class="muComment">#</span>
+<span id="L673" class="LineNr"> 673 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L674" class="LineNr"> 674 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L675" class="LineNr"> 675 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; -1    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L662'>test-run-negative-integer</a>/0&quot;</span>
+<span id="L676" class="LineNr"> 676 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L662'>test-run-negative-integer</a>/1&quot;</span>
+<span id="L677" class="LineNr"> 677 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L662'>test-run-negative-integer</a>/2&quot;</span>
+<span id="L678" class="LineNr"> 678 </span><span class="Delimiter">}</span>
+<span id="L679" class="LineNr"> 679 </span>
+<span id="L680" class="LineNr"> 680 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L680'>test-run-error-invalid-integer</a></span> <span class="Delimiter">{</span>
+<span id="L681" class="LineNr"> 681 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L682" class="LineNr"> 682 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L683" class="LineNr"> 683 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;1a&quot;</span>
+<span id="L684" class="LineNr"> 684 </span>  <span class="muComment"># eval</span>
+<span id="L685" class="LineNr"> 685 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L686" class="LineNr"> 686 </span>  <span class="muComment"># setup: screen</span>
+<span id="L687" class="LineNr"> 687 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L688" class="LineNr"> 688 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L689" class="LineNr"> 689 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L690" class="LineNr"> 690 </span>  <span class="muComment">#</span>
+<span id="L691" class="LineNr"> 691 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L692" class="LineNr"> 692 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L693" class="LineNr"> 693 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">1</span>/y, <span class="Constant">&quot; 1a                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L680'>test-run-error-invalid-integer</a>/0&quot;</span>
+<span id="L694" class="LineNr"> 694 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L680'>test-run-error-invalid-integer</a>/1&quot;</span>
+<span id="L695" class="LineNr"> 695 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>   <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xc</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>, <span class="Constant">3</span>/y, <span class="Constant">&quot; unbound symbol: 1a       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L680'>test-run-error-invalid-integer</a>/2&quot;</span>
+<span id="L696" class="LineNr"> 696 </span><span class="Delimiter">}</span>
+<span id="L697" class="LineNr"> 697 </span>
+<span id="L698" class="LineNr"> 698 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L698'>test-run-error-unknown-symbol</a></span> <span class="Delimiter">{</span>
+<span id="L699" class="LineNr"> 699 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L700" class="LineNr"> 700 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L701" class="LineNr"> 701 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;a&quot;</span>
+<span id="L702" class="LineNr"> 702 </span>  <span class="muComment"># eval</span>
+<span id="L703" class="LineNr"> 703 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L704" class="LineNr"> 704 </span>  <span class="muComment"># setup: screen</span>
+<span id="L705" class="LineNr"> 705 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L706" class="LineNr"> 706 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L707" class="LineNr"> 707 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L708" class="LineNr"> 708 </span>  <span class="muComment">#</span>
+<span id="L709" class="LineNr"> 709 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L710" class="LineNr"> 710 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L711" class="LineNr"> 711 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">1</span>/y, <span class="Constant">&quot; a                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L698'>test-run-error-unknown-symbol</a>/0&quot;</span>
+<span id="L712" class="LineNr"> 712 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a>            <a href='../500fake-screen.mu.html#L14'>screen</a>,               <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L698'>test-run-error-unknown-symbol</a>/1&quot;</span>
+<span id="L713" class="LineNr"> 713 </span>  <a href='../504test-screen.mu.html#L75'>check-screen-row-in-color</a>   <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xc</span>/fg=<span class="Special"><a href='trace.mu.html#L197'>error</a></span>, <span class="Constant">3</span>/y, <span class="Constant">&quot; unbound symbol: a  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L698'>test-run-error-unknown-symbol</a>/2&quot;</span>
+<span id="L714" class="LineNr"> 714 </span><span class="Delimiter">}</span>
+<span id="L715" class="LineNr"> 715 </span>
+<span id="L716" class="LineNr"> 716 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L716'>test-run-with-spaces</a></span> <span class="Delimiter">{</span>
+<span id="L717" class="LineNr"> 717 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L718" class="LineNr"> 718 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L719" class="LineNr"> 719 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot; 1 \n&quot;</span>
+<span id="L720" class="LineNr"> 720 </span>  <span class="muComment"># eval</span>
+<span id="L721" class="LineNr"> 721 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L722" class="LineNr"> 722 </span>  <span class="muComment"># setup: screen</span>
+<span id="L723" class="LineNr"> 723 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L724" class="LineNr"> 724 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L725" class="LineNr"> 725 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L726" class="LineNr"> 726 </span>  <span class="muComment">#</span>
+<span id="L727" class="LineNr"> 727 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L728" class="LineNr"> 728 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L729" class="LineNr"> 729 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot;  1   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L716'>test-run-with-spaces</a>/0&quot;</span>
+<span id="L730" class="LineNr"> 730 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L716'>test-run-with-spaces</a>/1&quot;</span>
+<span id="L731" class="LineNr"> 731 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; ...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L716'>test-run-with-spaces</a>/2&quot;</span>
+<span id="L732" class="LineNr"> 732 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">4</span>/y, <span class="Constant">&quot; =&gt; 1 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L716'>test-run-with-spaces</a>/3&quot;</span>
+<span id="L733" class="LineNr"> 733 </span><span class="Delimiter">}</span>
+<span id="L734" class="LineNr"> 734 </span>
+<span id="L735" class="LineNr"> 735 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L735'>test-run-quote</a></span> <span class="Delimiter">{</span>
+<span id="L736" class="LineNr"> 736 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L737" class="LineNr"> 737 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L738" class="LineNr"> 738 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'a&quot;</span>
+<span id="L739" class="LineNr"> 739 </span>  <span class="muComment"># eval</span>
+<span id="L740" class="LineNr"> 740 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L741" class="LineNr"> 741 </span>  <span class="muComment"># setup: screen</span>
+<span id="L742" class="LineNr"> 742 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L743" class="LineNr"> 743 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L744" class="LineNr"> 744 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L745" class="LineNr"> 745 </span>  <span class="muComment">#</span>
+<span id="L746" class="LineNr"> 746 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L747" class="LineNr"> 747 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L748" class="LineNr"> 748 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; 'a   &quot;</span>, <span class="Constant">&quot;F - test-run-quote/0&quot;</span>
+<span id="L749" class="LineNr"> 749 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L735'>test-run-quote</a>/1&quot;</span>
+<span id="L750" class="LineNr"> 750 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; a &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L735'>test-run-quote</a>/2&quot;</span>
+<span id="L751" class="LineNr"> 751 </span><span class="Delimiter">}</span>
+<span id="L752" class="LineNr"> 752 </span>
+<span id="L753" class="LineNr"> 753 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L753'>test-run-dotted-list</a></span> <span class="Delimiter">{</span>
+<span id="L754" class="LineNr"> 754 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L755" class="LineNr"> 755 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L756" class="LineNr"> 756 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . b)&quot;</span>
+<span id="L757" class="LineNr"> 757 </span>  <span class="muComment"># eval</span>
+<span id="L758" class="LineNr"> 758 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L759" class="LineNr"> 759 </span>  <span class="muComment"># setup: screen</span>
+<span id="L760" class="LineNr"> 760 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L761" class="LineNr"> 761 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L762" class="LineNr"> 762 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L763" class="LineNr"> 763 </span>  <span class="muComment">#</span>
+<span id="L764" class="LineNr"> 764 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L765" class="LineNr"> 765 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L766" class="LineNr"> 766 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . b)   &quot;</span>, <span class="Constant">&quot;F - test-run-dotted-list/0&quot;</span>
+<span id="L767" class="LineNr"> 767 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...        &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L753'>test-run-dotted-list</a>/1&quot;</span>
+<span id="L768" class="LineNr"> 768 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; (a . b) &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L753'>test-run-dotted-list</a>/2&quot;</span>
+<span id="L769" class="LineNr"> 769 </span><span class="Delimiter">}</span>
+<span id="L770" class="LineNr"> 770 </span>
+<span id="L771" class="LineNr"> 771 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L771'>test-run-dot-and-list</a></span> <span class="Delimiter">{</span>
+<span id="L772" class="LineNr"> 772 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L773" class="LineNr"> 773 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L774" class="LineNr"> 774 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . (b))&quot;</span>
+<span id="L775" class="LineNr"> 775 </span>  <span class="muComment"># eval</span>
+<span id="L776" class="LineNr"> 776 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L777" class="LineNr"> 777 </span>  <span class="muComment"># setup: screen</span>
+<span id="L778" class="LineNr"> 778 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L779" class="LineNr"> 779 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L780" class="LineNr"> 780 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L781" class="LineNr"> 781 </span>  <span class="muComment">#</span>
+<span id="L782" class="LineNr"> 782 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L783" class="LineNr"> 783 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L784" class="LineNr"> 784 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . (b)) &quot;</span>, <span class="Constant">&quot;F - test-run-dot-and-list/0&quot;</span>
+<span id="L785" class="LineNr"> 785 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...        &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L771'>test-run-dot-and-list</a>/1&quot;</span>
+<span id="L786" class="LineNr"> 786 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; (a b)   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L771'>test-run-dot-and-list</a>/2&quot;</span>
+<span id="L787" class="LineNr"> 787 </span><span class="Delimiter">}</span>
+<span id="L788" class="LineNr"> 788 </span>
+<span id="L789" class="LineNr"> 789 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L789'>test-run-final-dot</a></span> <span class="Delimiter">{</span>
+<span id="L790" class="LineNr"> 790 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L791" class="LineNr"> 791 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L792" class="LineNr"> 792 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a .)&quot;</span>
+<span id="L793" class="LineNr"> 793 </span>  <span class="muComment"># eval</span>
+<span id="L794" class="LineNr"> 794 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L795" class="LineNr"> 795 </span>  <span class="muComment"># setup: screen</span>
+<span id="L796" class="LineNr"> 796 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L797" class="LineNr"> 797 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L798" class="LineNr"> 798 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L799" class="LineNr"> 799 </span>  <span class="muComment">#</span>
+<span id="L800" class="LineNr"> 800 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L801" class="LineNr"> 801 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L802" class="LineNr"> 802 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a .)               &quot;</span>, <span class="Constant">&quot;F - test-run-final-dot/0&quot;</span>
+<span id="L803" class="LineNr"> 803 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L789'>test-run-final-dot</a>/1&quot;</span>
+<span id="L804" class="LineNr"> 804 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; '. )' makes no sense &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L789'>test-run-final-dot</a>/2&quot;</span>
+<span id="L805" class="LineNr"> 805 </span>  <span class="muComment"># further errors may occur</span>
+<span id="L806" class="LineNr"> 806 </span><span class="Delimiter">}</span>
+<span id="L807" class="LineNr"> 807 </span>
+<span id="L808" class="LineNr"> 808 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L808'>test-run-double-dot</a></span> <span class="Delimiter">{</span>
+<span id="L809" class="LineNr"> 809 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L810" class="LineNr"> 810 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L811" class="LineNr"> 811 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . .)&quot;</span>
+<span id="L812" class="LineNr"> 812 </span>  <span class="muComment"># eval</span>
+<span id="L813" class="LineNr"> 813 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L814" class="LineNr"> 814 </span>  <span class="muComment"># setup: screen</span>
+<span id="L815" class="LineNr"> 815 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L816" class="LineNr"> 816 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L817" class="LineNr"> 817 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L818" class="LineNr"> 818 </span>  <span class="muComment">#</span>
+<span id="L819" class="LineNr"> 819 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L820" class="LineNr"> 820 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L821" class="LineNr"> 821 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . .)             &quot;</span>, <span class="Constant">&quot;F - test-run-double-dot/0&quot;</span>
+<span id="L822" class="LineNr"> 822 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L808'>test-run-double-dot</a>/1&quot;</span>
+<span id="L823" class="LineNr"> 823 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; '. .' makes no sense &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L808'>test-run-double-dot</a>/2&quot;</span>
+<span id="L824" class="LineNr"> 824 </span>  <span class="muComment"># further errors may occur</span>
+<span id="L825" class="LineNr"> 825 </span><span class="Delimiter">}</span>
+<span id="L826" class="LineNr"> 826 </span>
+<span id="L827" class="LineNr"> 827 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L827'>test-run-multiple-expressions-after-dot</a></span> <span class="Delimiter">{</span>
+<span id="L828" class="LineNr"> 828 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L829" class="LineNr"> 829 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L830" class="LineNr"> 830 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;'(a . b c)&quot;</span>
+<span id="L831" class="LineNr"> 831 </span>  <span class="muComment"># eval</span>
+<span id="L832" class="LineNr"> 832 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L833" class="LineNr"> 833 </span>  <span class="muComment"># setup: screen</span>
+<span id="L834" class="LineNr"> 834 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L835" class="LineNr"> 835 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L836" class="LineNr"> 836 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L837" class="LineNr"> 837 </span>  <span class="muComment">#</span>
+<span id="L838" class="LineNr"> 838 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L839" class="LineNr"> 839 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L840" class="LineNr"> 840 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; '(a . b c)                                           &quot;</span>, <span class="Constant">&quot;F - test-run-multiple-expressions-after-dot/0&quot;</span>
+<span id="L841" class="LineNr"> 841 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                                                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L827'>test-run-multiple-expressions-after-dot</a>/1&quot;</span>
+<span id="L842" class="LineNr"> 842 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; cannot have multiple expressions between '.' and ')' &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L827'>test-run-multiple-expressions-after-dot</a>/2&quot;</span>
+<span id="L843" class="LineNr"> 843 </span>  <span class="muComment"># further errors may occur</span>
+<span id="L844" class="LineNr"> 844 </span><span class="Delimiter">}</span>
+<span id="L845" class="LineNr"> 845 </span>
+<span id="L846" class="LineNr"> 846 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L846'>test-run-stream</a></span> <span class="Delimiter">{</span>
+<span id="L847" class="LineNr"> 847 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L848" class="LineNr"> 848 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L849" class="LineNr"> 849 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;[a b]&quot;</span>
+<span id="L850" class="LineNr"> 850 </span>  <span class="muComment"># eval</span>
+<span id="L851" class="LineNr"> 851 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L852" class="LineNr"> 852 </span>  <span class="muComment"># setup: screen</span>
+<span id="L853" class="LineNr"> 853 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L854" class="LineNr"> 854 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L855" class="LineNr"> 855 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L856" class="LineNr"> 856 </span>  <span class="muComment">#</span>
+<span id="L857" class="LineNr"> 857 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L858" class="LineNr"> 858 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L859" class="LineNr"> 859 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">1</span>/y, <span class="Constant">&quot; [a b]    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L846'>test-run-stream</a>/0&quot;</span>
+<span id="L860" class="LineNr"> 860 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">2</span>/y, <span class="Constant">&quot; ...      &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L846'>test-run-stream</a>/1&quot;</span>
+<span id="L861" class="LineNr"> 861 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; [a b] &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L846'>test-run-stream</a>/2&quot;</span>
+<span id="L862" class="LineNr"> 862 </span><span class="Delimiter">}</span>
+<span id="L863" class="LineNr"> 863 </span>
+<span id="L864" class="LineNr"> 864 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a></span> <span class="Delimiter">{</span>
+<span id="L865" class="LineNr"> 865 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L866" class="LineNr"> 866 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L867" class="LineNr"> 867 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;12&quot;</span>
+<span id="L868" class="LineNr"> 868 </span>  <span class="muComment"># eval</span>
+<span id="L869" class="LineNr"> 869 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L870" class="LineNr"> 870 </span>  <span class="muComment"># setup: screen</span>
+<span id="L871" class="LineNr"> 871 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L872" class="LineNr"> 872 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L873" class="LineNr"> 873 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L874" class="LineNr"> 874 </span>  <span class="muComment">#</span>
+<span id="L875" class="LineNr"> 875 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L876" class="LineNr"> 876 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L877" class="LineNr"> 877 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/pre-0&quot;</span>
+<span id="L878" class="LineNr"> 878 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L864'>test-run-move-cursor-into-trace</a>/pre-0/cursor&quot;</span>
+<span id="L879" class="LineNr"> 879 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/pre-1&quot;</span>
+<span id="L880" class="LineNr"> 880 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L864'>test-run-move-cursor-into-trace</a>/pre-1/cursor&quot;</span>
+<span id="L881" class="LineNr"> 881 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/pre-2&quot;</span>
+<span id="L882" class="LineNr"> 882 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/pre-2/cursor&quot;</span>
+<span id="L883" class="LineNr"> 883 </span>  <span class="muComment"># move cursor into trace</span>
+<span id="L884" class="LineNr"> 884 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L885" class="LineNr"> 885 </span>  <span class="muComment">#</span>
+<span id="L886" class="LineNr"> 886 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L887" class="LineNr"> 887 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L888" class="LineNr"> 888 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/trace-0&quot;</span>
+<span id="L889" class="LineNr"> 889 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L864'>test-run-move-cursor-into-trace</a>/trace-0/cursor&quot;</span>
+<span id="L890" class="LineNr"> 890 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/trace-1&quot;</span>
+<span id="L891" class="LineNr"> 891 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L864'>test-run-move-cursor-into-trace</a>/trace-1/cursor&quot;</span>
+<span id="L892" class="LineNr"> 892 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/trace-2&quot;</span>
+<span id="L893" class="LineNr"> 893 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/trace-2/cursor&quot;</span>
+<span id="L894" class="LineNr"> 894 </span>  <span class="muComment"># move cursor into input</span>
+<span id="L895" class="LineNr"> 895 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L896" class="LineNr"> 896 </span>  <span class="muComment">#</span>
+<span id="L897" class="LineNr"> 897 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L898" class="LineNr"> 898 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L899" class="LineNr"> 899 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/input-0&quot;</span>
+<span id="L900" class="LineNr"> 900 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L864'>test-run-move-cursor-into-trace</a>/input-0/cursor&quot;</span>
+<span id="L901" class="LineNr"> 901 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/input-1&quot;</span>
+<span id="L902" class="LineNr"> 902 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L864'>test-run-move-cursor-into-trace</a>/input-1/cursor&quot;</span>
+<span id="L903" class="LineNr"> 903 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/input-2&quot;</span>
+<span id="L904" class="LineNr"> 904 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L864'>test-run-move-cursor-into-trace</a>/input-2/cursor&quot;</span>
+<span id="L905" class="LineNr"> 905 </span><span class="Delimiter">}</span>
+<span id="L906" class="LineNr"> 906 </span>
+<span id="L907" class="LineNr"> 907 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='sandbox.mu.html#L907'>has-trace?</a></span> _self: (addr <a href='sandbox.mu.html#L1'>sandbox</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>
+<span id="L908" class="LineNr"> 908 </span>  <span class="PreProc">var</span> self/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> copy _self
+<span id="L909" class="LineNr"> 909 </span>  <span class="PreProc">var</span> trace-ah/eax: (addr handle trace) <span class="Special">&lt;-</span> get self, trace
+<span id="L910" class="LineNr"> 910 </span>  <span class="PreProc">var</span> _trace/eax: (addr trace) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *trace-ah
+<span id="L911" class="LineNr"> 911 </span>  <span class="PreProc">var</span> trace/<span class="muRegEdx">edx</span>: (addr trace) <span class="Special">&lt;-</span> copy _trace
+<span id="L912" class="LineNr"> 912 </span>  compare trace, <span class="Constant">0</span>
+<span id="L913" class="LineNr"> 913 </span>  <span class="Delimiter">{</span>
+<span id="L914" class="LineNr"> 914 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L915" class="LineNr"> 915 </span>    <a href='../317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;null trace&quot;</span>
+<span id="L916" class="LineNr"> 916 </span>  <span class="Delimiter">}</span>
+<span id="L917" class="LineNr"> 917 </span>  <span class="PreProc">var</span> first-free/<span class="muRegEbx">ebx</span>: (addr int) <span class="Special">&lt;-</span> get trace, first-free
+<span id="L918" class="LineNr"> 918 </span>  compare *first-free, <span class="Constant">0</span>
+<span id="L919" class="LineNr"> 919 </span>  <span class="Delimiter">{</span>
+<span id="L920" class="LineNr"> 920 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L921" class="LineNr"> 921 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L922" class="LineNr"> 922 </span>  <span class="Delimiter">}</span>
+<span id="L923" class="LineNr"> 923 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L924" class="LineNr"> 924 </span><span class="Delimiter">}</span>
+<span id="L925" class="LineNr"> 925 </span>
+<span id="L926" class="LineNr"> 926 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L926'>test-run-expand-trace</a></span> <span class="Delimiter">{</span>
+<span id="L927" class="LineNr"> 927 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L928" class="LineNr"> 928 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L929" class="LineNr"> 929 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;12&quot;</span>
+<span id="L930" class="LineNr"> 930 </span>  <span class="muComment"># eval</span>
+<span id="L931" class="LineNr"> 931 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L932" class="LineNr"> 932 </span>  <span class="muComment"># setup: screen</span>
+<span id="L933" class="LineNr"> 933 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L934" class="LineNr"> 934 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L935" class="LineNr"> 935 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L936" class="LineNr"> 936 </span>  <span class="muComment">#</span>
+<span id="L937" class="LineNr"> 937 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L938" class="LineNr"> 938 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L939" class="LineNr"> 939 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre0-0&quot;</span>
+<span id="L940" class="LineNr"> 940 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L926'>test-run-expand-trace</a>/pre0-0/cursor&quot;</span>
+<span id="L941" class="LineNr"> 941 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre0-1&quot;</span>
+<span id="L942" class="LineNr"> 942 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L926'>test-run-expand-trace</a>/pre0-1/cursor&quot;</span>
+<span id="L943" class="LineNr"> 943 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre0-2&quot;</span>
+<span id="L944" class="LineNr"> 944 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre0-2/cursor&quot;</span>
+<span id="L945" class="LineNr"> 945 </span>  <span class="muComment"># move cursor into trace</span>
+<span id="L946" class="LineNr"> 946 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L947" class="LineNr"> 947 </span>  <span class="muComment">#</span>
+<span id="L948" class="LineNr"> 948 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L949" class="LineNr"> 949 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L950" class="LineNr"> 950 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre1-0&quot;</span>
+<span id="L951" class="LineNr"> 951 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L926'>test-run-expand-trace</a>/pre1-0/cursor&quot;</span>
+<span id="L952" class="LineNr"> 952 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre1-1&quot;</span>
+<span id="L953" class="LineNr"> 953 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L926'>test-run-expand-trace</a>/pre1-1/cursor&quot;</span>
+<span id="L954" class="LineNr"> 954 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre1-2&quot;</span>
+<span id="L955" class="LineNr"> 955 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/pre1-2/cursor&quot;</span>
+<span id="L956" class="LineNr"> 956 </span>  <span class="muComment"># expand</span>
+<span id="L957" class="LineNr"> 957 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L958" class="LineNr"> 958 </span>  <span class="muComment">#</span>
+<span id="L959" class="LineNr"> 959 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L960" class="LineNr"> 960 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L961" class="LineNr"> 961 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L962" class="LineNr"> 962 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/expand-0&quot;</span>
+<span id="L963" class="LineNr"> 963 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L926'>test-run-expand-trace</a>/expand-0/cursor&quot;</span>
+<span id="L964" class="LineNr"> 964 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 toke&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/expand-1&quot;</span>
+<span id="L965" class="LineNr"> 965 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L926'>test-run-expand-trace</a>/expand-1/cursor&quot;</span>
+<span id="L966" class="LineNr"> 966 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/expand-2&quot;</span>
+<span id="L967" class="LineNr"> 967 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/expand-2/cursor&quot;</span>
+<span id="L968" class="LineNr"> 968 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 inse&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/expand-3&quot;</span>
+<span id="L969" class="LineNr"> 969 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L926'>test-run-expand-trace</a>/expand-3/cursor&quot;</span>
+<span id="L970" class="LineNr"> 970 </span><span class="Delimiter">}</span>
+<span id="L971" class="LineNr"> 971 </span>
+<span id="L972" class="LineNr"> 972 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a></span> <span class="Delimiter">{</span>
+<span id="L973" class="LineNr"> 973 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L974" class="LineNr"> 974 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L975" class="LineNr"> 975 </span>  <span class="muComment"># initialize sandbox with a max-depth of 3</span>
+<span id="L976" class="LineNr"> 976 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;12&quot;</span>
+<span id="L977" class="LineNr"> 977 </span>  <span class="muComment"># eval</span>
+<span id="L978" class="LineNr"> 978 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L979" class="LineNr"> 979 </span>  <span class="muComment"># setup: screen</span>
+<span id="L980" class="LineNr"> 980 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L981" class="LineNr"> 981 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L982" class="LineNr"> 982 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L983" class="LineNr"> 983 </span>  <span class="muComment">#</span>
+<span id="L984" class="LineNr"> 984 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L985" class="LineNr"> 985 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L986" class="LineNr"> 986 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre0-0&quot;</span>
+<span id="L987" class="LineNr"> 987 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/pre0-0/cursor&quot;</span>
+<span id="L988" class="LineNr"> 988 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre0-1&quot;</span>
+<span id="L989" class="LineNr"> 989 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/pre0-1/cursor&quot;</span>
+<span id="L990" class="LineNr"> 990 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre0-2&quot;</span>
+<span id="L991" class="LineNr"> 991 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre0-2/cursor&quot;</span>
+<span id="L992" class="LineNr"> 992 </span>  <span class="muComment"># move cursor into trace</span>
+<span id="L993" class="LineNr"> 993 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L994" class="LineNr"> 994 </span>  <span class="muComment">#</span>
+<span id="L995" class="LineNr"> 995 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L996" class="LineNr"> 996 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L997" class="LineNr"> 997 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre1-0&quot;</span>
+<span id="L998" class="LineNr"> 998 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/pre1-0/cursor&quot;</span>
+<span id="L999" class="LineNr"> 999 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre1-1&quot;</span>
+<span id="L1000" class="LineNr">1000 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/pre1-1/cursor&quot;</span>
+<span id="L1001" class="LineNr">1001 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 12 &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre1-2&quot;</span>
+<span id="L1002" class="LineNr">1002 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre1-2/cursor&quot;</span>
+<span id="L1003" class="LineNr">1003 </span>  <span class="muComment"># expand</span>
+<span id="L1004" class="LineNr">1004 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L1005" class="LineNr">1005 </span>  <span class="muComment">#</span>
+<span id="L1006" class="LineNr">1006 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1007" class="LineNr">1007 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1008" class="LineNr">1008 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L1009" class="LineNr">1009 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-0&quot;</span>
+<span id="L1010" class="LineNr">1010 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-0/cursor&quot;</span>
+<span id="L1011" class="LineNr">1011 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 toke&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-1&quot;</span>
+<span id="L1012" class="LineNr">1012 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-1/cursor&quot;</span>
+<span id="L1013" class="LineNr">1013 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-2&quot;</span>
+<span id="L1014" class="LineNr">1014 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-2/cursor&quot;</span>
+<span id="L1015" class="LineNr">1015 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 inse&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-2&quot;</span>
+<span id="L1016" class="LineNr">1016 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/pre2-2/cursor&quot;</span>
+<span id="L1017" class="LineNr">1017 </span>  <span class="muComment"># move cursor down and expand</span>
+<span id="L1018" class="LineNr">1018 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1019" class="LineNr">1019 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1020" class="LineNr">1020 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L1021" class="LineNr">1021 </span>  <span class="muComment">#</span>
+<span id="L1022" class="LineNr">1022 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1023" class="LineNr">1023 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1024" class="LineNr">1024 </span>  <span class="muComment"># screen looks same as if trace max-depth was really high</span>
+<span id="L1025" class="LineNr">1025 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot; 12    &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-0&quot;</span>
+<span id="L1026" class="LineNr">1026 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-0/cursor&quot;</span>
+<span id="L1027" class="LineNr">1027 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 toke&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-1&quot;</span>
+<span id="L1028" class="LineNr">1028 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-1/cursor&quot;</span>
+<span id="L1029" class="LineNr">1029 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot; 2 next&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-2&quot;</span>
+<span id="L1030" class="LineNr">1030 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot; ||||||&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-2/cursor&quot;</span>
+<span id="L1031" class="LineNr">1031 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-3&quot;</span>
+<span id="L1032" class="LineNr">1032 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-3/cursor&quot;</span>
+<span id="L1033" class="LineNr">1033 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">5</span>/y, <span class="Constant">&quot; 2 next&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-4&quot;</span>
+<span id="L1034" class="LineNr">1034 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">5</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-4/cursor&quot;</span>
+<span id="L1035" class="LineNr">1035 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">6</span>/y, <span class="Constant">&quot; ...   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-5&quot;</span>
+<span id="L1036" class="LineNr">1036 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">6</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-5/cursor&quot;</span>
+<span id="L1037" class="LineNr">1037 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">7</span>/y, <span class="Constant">&quot; 2 =&gt; 1&quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-6&quot;</span>
+<span id="L1038" class="LineNr">1038 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">7</span>/y, <span class="Constant">&quot;       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L972'>test-run-can-rerun-when-expanding-trace</a>/expand-6/cursor&quot;</span>
+<span id="L1039" class="LineNr">1039 </span><span class="Delimiter">}</span>
+<span id="L1040" class="LineNr">1040 </span>
+<span id="L1041" class="LineNr">1041 </span><span class="PreProc">fn</span> <span class="muTest"><a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a></span> <span class="Delimiter">{</span>
+<span id="L1042" class="LineNr">1042 </span>  <span class="PreProc">var</span> sandbox-storage: <a href='sandbox.mu.html#L1'>sandbox</a>
+<span id="L1043" class="LineNr">1043 </span>  <span class="PreProc">var</span> <a href='sandbox.mu.html#L1'>sandbox</a>/<span class="muRegEsi">esi</span>: (addr <a href='sandbox.mu.html#L1'>sandbox</a>) <span class="Special">&lt;-</span> address sandbox-storage
+<span id="L1044" class="LineNr">1044 </span>  <span class="muComment"># initialize sandbox with a max-depth of 3</span>
+<span id="L1045" class="LineNr">1045 </span>  <a href='sandbox.mu.html#L41'>initialize-sandbox-with</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">&quot;7&quot;</span>
+<span id="L1046" class="LineNr">1046 </span>  <span class="muComment"># eval</span>
+<span id="L1047" class="LineNr">1047 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L1048" class="LineNr">1048 </span>  <span class="muComment"># setup: screen</span>
+<span id="L1049" class="LineNr">1049 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1050" class="LineNr">1050 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
+<span id="L1051" class="LineNr">1051 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x80</span>/width, <span class="Constant">0x10</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1052" class="LineNr">1052 </span>  <span class="muComment">#</span>
+<span id="L1053" class="LineNr">1053 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1054" class="LineNr">1054 </span>  <span class="muComment"># skip one line of padding</span>
+<span id="L1055" class="LineNr">1055 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre0-0&quot;</span>
+<span id="L1056" class="LineNr">1056 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre0-0/cursor&quot;</span>
+<span id="L1057" class="LineNr">1057 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre0-1&quot;</span>
+<span id="L1058" class="LineNr">1058 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre0-1/cursor&quot;</span>
+<span id="L1059" class="LineNr">1059 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 7                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre0-2&quot;</span>
+<span id="L1060" class="LineNr">1060 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre0-2/cursor&quot;</span>
+<span id="L1061" class="LineNr">1061 </span>  <span class="muComment"># move cursor into trace</span>
+<span id="L1062" class="LineNr">1062 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0xd</span>/ctrl-m, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1063" class="LineNr">1063 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1064" class="LineNr">1064 </span>  <span class="muComment">#</span>
+<span id="L1065" class="LineNr">1065 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre1-0&quot;</span>
+<span id="L1066" class="LineNr">1066 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre1-0/cursor&quot;</span>
+<span id="L1067" class="LineNr">1067 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre1-1&quot;</span>
+<span id="L1068" class="LineNr">1068 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre1-1/cursor&quot;</span>
+<span id="L1069" class="LineNr">1069 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; =&gt; 7                  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre1-2&quot;</span>
+<span id="L1070" class="LineNr">1070 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre1-2/cursor&quot;</span>
+<span id="L1071" class="LineNr">1071 </span>  <span class="muComment"># expand</span>
+<span id="L1072" class="LineNr">1072 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L1073" class="LineNr">1073 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1074" class="LineNr">1074 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1075" class="LineNr">1075 </span>  <span class="muComment">#</span>
+<span id="L1076" class="LineNr">1076 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-0&quot;</span>
+<span id="L1077" class="LineNr">1077 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-0/cursor&quot;</span>
+<span id="L1078" class="LineNr">1078 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 <a href='tokenize.mu.html#L13'>tokenize</a>            &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-1&quot;</span>
+<span id="L1079" class="LineNr">1079 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-1/cursor&quot;</span>
+<span id="L1080" class="LineNr">1080 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-2&quot;</span>
+<span id="L1081" class="LineNr">1081 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-2/cursor&quot;</span>
+<span id="L1082" class="LineNr">1082 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 insert parens       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-3&quot;</span>
+<span id="L1083" class="LineNr">1083 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-3/cursor&quot;</span>
+<span id="L1084" class="LineNr">1084 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">5</span>/y, <span class="Constant">&quot; 1 parse               &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-4&quot;</span>
+<span id="L1085" class="LineNr">1085 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-4/cursor&quot;</span>
+<span id="L1086" class="LineNr">1086 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">6</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-5&quot;</span>
+<span id="L1087" class="LineNr">1087 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-5/cursor&quot;</span>
+<span id="L1088" class="LineNr">1088 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">7</span>/y, <span class="Constant">&quot; 1 transform infix     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-6&quot;</span>
+<span id="L1089" class="LineNr">1089 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-6/cursor&quot;</span>
+<span id="L1090" class="LineNr">1090 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">8</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-7&quot;</span>
+<span id="L1091" class="LineNr">1091 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-7/cursor&quot;</span>
+<span id="L1092" class="LineNr">1092 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">9</span>/y, <span class="Constant">&quot; 1 <a href='macroexpand.mu.html#L1'>macroexpand</a> 7       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-8&quot;</span>
+<span id="L1093" class="LineNr">1093 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-8/cursor&quot;</span>
+<span id="L1094" class="LineNr">1094 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xa</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-9&quot;</span>
+<span id="L1095" class="LineNr">1095 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xa</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-9/cursor&quot;</span>
+<span id="L1096" class="LineNr">1096 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xb</span>/y, <span class="Constant">&quot; 1 =&gt; 7                &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-10&quot;</span>
+<span id="L1097" class="LineNr">1097 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre2-10/cursor&quot;</span>
+<span id="L1098" class="LineNr">1098 </span>  <span class="muComment"># move cursor down below the macroexpand line and expand</span>
+<span id="L1099" class="LineNr">1099 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1100" class="LineNr">1100 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1101" class="LineNr">1101 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1102" class="LineNr">1102 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1103" class="LineNr">1103 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1104" class="LineNr">1104 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1105" class="LineNr">1105 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1106" class="LineNr">1106 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1107" class="LineNr">1107 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1108" class="LineNr">1108 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1109" class="LineNr">1109 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1110" class="LineNr">1110 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1111" class="LineNr">1111 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1112" class="LineNr">1112 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1113" class="LineNr">1113 </span>  <a href='sandbox.mu.html#L452'>edit-sandbox</a> <a href='sandbox.mu.html#L1'>sandbox</a>, <span class="Constant">0x6a</span>/j, <span class="Constant">0</span>/no-globals, <span class="Constant">0</span>/no-disk
+<span id="L1114" class="LineNr">1114 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1115" class="LineNr">1115 </span>  <span class="muComment">#</span>
+<span id="L1116" class="LineNr">1116 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-0&quot;</span>
+<span id="L1117" class="LineNr">1117 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-0/cursor&quot;</span>
+<span id="L1118" class="LineNr">1118 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 <a href='tokenize.mu.html#L13'>tokenize</a>            &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-1&quot;</span>
+<span id="L1119" class="LineNr">1119 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-1/cursor&quot;</span>
+<span id="L1120" class="LineNr">1120 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-2&quot;</span>
+<span id="L1121" class="LineNr">1121 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-2/cursor&quot;</span>
+<span id="L1122" class="LineNr">1122 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 insert parens       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-3&quot;</span>
+<span id="L1123" class="LineNr">1123 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-3/cursor&quot;</span>
+<span id="L1124" class="LineNr">1124 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">5</span>/y, <span class="Constant">&quot; 1 parse               &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-4&quot;</span>
+<span id="L1125" class="LineNr">1125 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-4/cursor&quot;</span>
+<span id="L1126" class="LineNr">1126 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">6</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-5&quot;</span>
+<span id="L1127" class="LineNr">1127 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-5/cursor&quot;</span>
+<span id="L1128" class="LineNr">1128 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">7</span>/y, <span class="Constant">&quot; 1 transform infix     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-6&quot;</span>
+<span id="L1129" class="LineNr">1129 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-6/cursor&quot;</span>
+<span id="L1130" class="LineNr">1130 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">8</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-7&quot;</span>
+<span id="L1131" class="LineNr">1131 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-7/cursor&quot;</span>
+<span id="L1132" class="LineNr">1132 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">9</span>/y, <span class="Constant">&quot; 1 <a href='macroexpand.mu.html#L1'>macroexpand</a> 7       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-8&quot;</span>
+<span id="L1133" class="LineNr">1133 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-8/cursor&quot;</span>
+<span id="L1134" class="LineNr">1134 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xa</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-9&quot;</span>
+<span id="L1135" class="LineNr">1135 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xa</span>/y, <span class="Constant">&quot; |||                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-9/cursor&quot;</span>
+<span id="L1136" class="LineNr">1136 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xb</span>/y, <span class="Constant">&quot; 1 =&gt; 7                &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-10&quot;</span>
+<span id="L1137" class="LineNr">1137 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/pre3-10/cursor&quot;</span>
+<span id="L1138" class="LineNr">1138 </span>  <span class="muComment"># expand</span>
+<span id="L1139" class="LineNr">1139 </span>  <a href='sandbox.mu.html#L452'>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-disk
+<span id="L1140" class="LineNr">1140 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1141" class="LineNr">1141 </span>  <a href='sandbox.mu.html#L81'>render-sandbox</a> <a href='../500fake-screen.mu.html#L14'>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">1</span>/show-cursor
+<span id="L1142" class="LineNr">1142 </span>  <span class="muComment"># cursor line is expanded</span>
+<span id="L1143" class="LineNr">1143 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">1</span>/y, <span class="Constant">&quot; 7                     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-0&quot;</span>
+<span id="L1144" class="LineNr">1144 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-0/cursor&quot;</span>
+<span id="L1145" class="LineNr">1145 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">2</span>/y, <span class="Constant">&quot; 1 <a href='tokenize.mu.html#L13'>tokenize</a>            &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-1&quot;</span>
+<span id="L1146" class="LineNr">1146 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>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#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-1/cursor&quot;</span>
+<span id="L1147" class="LineNr">1147 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">3</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-2&quot;</span>
+<span id="L1148" class="LineNr">1148 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">3</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-2/cursor&quot;</span>
+<span id="L1149" class="LineNr">1149 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">4</span>/y, <span class="Constant">&quot; 1 insert parens       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-3&quot;</span>
+<span id="L1150" class="LineNr">1150 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">4</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-3/cursor&quot;</span>
+<span id="L1151" class="LineNr">1151 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">5</span>/y, <span class="Constant">&quot; 1 parse               &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-4&quot;</span>
+<span id="L1152" class="LineNr">1152 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">5</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-4/cursor&quot;</span>
+<span id="L1153" class="LineNr">1153 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">6</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-5&quot;</span>
+<span id="L1154" class="LineNr">1154 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">6</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-5/cursor&quot;</span>
+<span id="L1155" class="LineNr">1155 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">7</span>/y, <span class="Constant">&quot; 1 transform infix     &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-6&quot;</span>
+<span id="L1156" class="LineNr">1156 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">7</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-6/cursor&quot;</span>
+<span id="L1157" class="LineNr">1157 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">8</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-7&quot;</span>
+<span id="L1158" class="LineNr">1158 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">8</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-7/cursor&quot;</span>
+<span id="L1159" class="LineNr">1159 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                    <span class="Constant">9</span>/y, <span class="Constant">&quot; 1 <a href='macroexpand.mu.html#L1'>macroexpand</a> 7       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-8&quot;</span>
+<span id="L1160" class="LineNr">1160 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor,   <span class="Constant">9</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-8/cursor&quot;</span>
+<span id="L1161" class="LineNr">1161 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xa</span>/y, <span class="Constant">&quot; 2 <a href='macroexpand.mu.html#L48'>macroexpand-iter</a> 7  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-9&quot;</span>
+<span id="L1162" class="LineNr">1162 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xa</span>/y, <span class="Constant">&quot; ||||||||||||||||||||  &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-9/cursor&quot;</span>
+<span id="L1163" class="LineNr">1163 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0xb</span>/y, <span class="Constant">&quot; ...                   &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-10&quot;</span>
+<span id="L1164" class="LineNr">1164 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0xb</span>/y, <span class="Constant">&quot;                       &quot;</span>, <span class="Constant">&quot;F - <a href='sandbox.mu.html#L1041'>test-run-preserves-trace-view-on-rerun</a>/expand-10/cursor&quot;</span>
+<span id="L1165" class="LineNr">1165 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/shell/tokenize.mu.html b/html/shell/tokenize.mu.html
index 2fdb0f13..4aea8936 100644
--- a/html/shell/tokenize.mu.html
+++ b/html/shell/tokenize.mu.html
@@ -612,10 +612,10 @@ if ('onhashchange' in window) {
 <span id="L548" class="LineNr"> 548 </span>      <a href='tokenize.mu.html#L1151'>initialize-token</a> out, <span class="Constant">&quot;,&quot;</span>
 <span id="L549" class="LineNr"> 549 </span>      <span class="PreProc">break</span> $next-token:case
 <span id="L550" class="LineNr"> 550 </span>    <span class="Delimiter">}</span>
-<span id="L551" class="LineNr"> 551 </span>    <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0x40</span> <span class="Constant">0x20</span>
+<span id="L551" class="LineNr"> 551 </span>    <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0x40</span> <span class="Constant">0x20</span>
 <span id="L552" class="LineNr"> 552 </span>    <span class="Delimiter">{</span>
 <span id="L553" class="LineNr"> 553 </span>      <span class="PreProc">var</span> foo/eax: int <span class="Special">&lt;-</span> copy g
-<span id="L554" class="LineNr"> 554 </span>      <a href='../501draw-text.mu.html#L384'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, foo, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L554" class="LineNr"> 554 </span>      <a href='../501draw-text.mu.html#L394'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, foo, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
 <span id="L555" class="LineNr"> 555 </span>    <span class="Delimiter">}</span>
 <span id="L556" class="LineNr"> 556 </span>    <a href='../317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;unknown <a href='tokenize.mu.html#L3'>token</a> type&quot;</span>
 <span id="L557" class="LineNr"> 557 </span>  <span class="Delimiter">}</span>
@@ -668,7 +668,7 @@ if ('onhashchange' in window) {
 <span id="L604" class="LineNr"> 604 </span>      <span class="PreProc">break</span> $next-symbol-token:<span class="PreProc">loop</span>
 <span id="L605" class="LineNr"> 605 </span>    <span class="Delimiter">}</span>
 <span id="L606" class="LineNr"> 606 </span>    <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L1083'>read-from-gap-buffer</a> in
-<span id="L607" class="LineNr"> 607 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out-data, g
+<span id="L607" class="LineNr"> 607 </span>    <a href='../403unicode.mu.html#L339'>write-grapheme</a> out-data, g
 <span id="L608" class="LineNr"> 608 </span>    <span class="PreProc">loop</span>
 <span id="L609" class="LineNr"> 609 </span>  <span class="Delimiter">}</span>
 <span id="L610" class="LineNr"> 610 </span>  <a href='trace.mu.html#L250'>trace-higher</a> trace
@@ -697,7 +697,7 @@ if ('onhashchange' in window) {
 <span id="L633" class="LineNr"> 633 </span>    <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L1047'>peek-from-gap-buffer</a> in
 <span id="L634" class="LineNr"> 634 </span>    compare g, <span class="Constant">0x2d</span>/minus
 <span id="L635" class="LineNr"> 635 </span>    g <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L1083'>read-from-gap-buffer</a> in  <span class="muComment"># consume</span>
-<span id="L636" class="LineNr"> 636 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out-data, g
+<span id="L636" class="LineNr"> 636 </span>    <a href='../403unicode.mu.html#L339'>write-grapheme</a> out-data, g
 <span id="L637" class="LineNr"> 637 </span>  <span class="Delimiter">}</span>
 <span id="L638" class="LineNr"> 638 </span>  $next-number-token:<span class="PreProc">loop</span>: <span class="Delimiter">{</span>
 <span id="L639" class="LineNr"> 639 </span>    <span class="PreProc">var</span> done?/eax: boolean <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L1023'>gap-buffer-scan-done?</a> in
@@ -735,7 +735,7 @@ if ('onhashchange' in window) {
 <span id="L671" class="LineNr"> 671 </span>    <span class="Delimiter">}</span>
 <span id="L672" class="LineNr"> 672 </span>    <a href='trace.mu.html#L185'>trace-text</a> trace, <span class="Constant">&quot;tokenize&quot;</span>, <span class="Constant">&quot;append&quot;</span>
 <span id="L673" class="LineNr"> 673 </span>    <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L1083'>read-from-gap-buffer</a> in
-<span id="L674" class="LineNr"> 674 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out-data, g
+<span id="L674" class="LineNr"> 674 </span>    <a href='../403unicode.mu.html#L339'>write-grapheme</a> out-data, g
 <span id="L675" class="LineNr"> 675 </span>    <span class="PreProc">loop</span>
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@@ -763,7 +763,7 @@ if ('onhashchange' in window) {
 <span id="L699" class="LineNr"> 699 </span>    <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../514gap-buffer.mu.html#L1083'>read-from-gap-buffer</a> in
 <span id="L700" class="LineNr"> 700 </span>    compare g, <span class="Constant">0x22</span>/double-quote
 <span id="L701" class="LineNr"> 701 </span>    <span class="PreProc">break-if-=</span>
-<span id="L702" class="LineNr"> 702 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out-data, g
+<span id="L702" class="LineNr"> 702 </span>    <a href='../403unicode.mu.html#L339'>write-grapheme</a> out-data, g
 <span id="L703" class="LineNr"> 703 </span>    <span class="PreProc">loop</span>
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 <span id="L705" class="LineNr"> 705 </span>  <span class="Delimiter">{</span>
@@ -812,7 +812,7 @@ if ('onhashchange' in window) {
 <span id="L748" class="LineNr"> 748 </span>      <span class="PreProc">break-if-=</span> $next-balanced-stream-token:<span class="PreProc">loop</span>
 <span id="L749" class="LineNr"> 749 </span>      decrement bracket-count
 <span id="L750" class="LineNr"> 750 </span>    <span class="Delimiter">}</span>
-<span id="L751" class="LineNr"> 751 </span>    <a href='../403unicode.mu.html#L176'>write-grapheme</a> out-data, g
+<span id="L751" class="LineNr"> 751 </span>    <a href='../403unicode.mu.html#L339'>write-grapheme</a> out-data, g
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@@ -835,7 +835,7 @@ if ('onhashchange' in window) {
 <span id="L771" class="LineNr"> 771 </span>  populate-stream out-data-ah, <span class="Constant">0x40</span>
 <span id="L772" class="LineNr"> 772 </span>  <span class="PreProc">var</span> _out-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *out-data-ah
 <span id="L773" class="LineNr"> 773 </span>  <span class="PreProc">var</span> out-data/<span class="muRegEdi">edi</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _out-data
-<span id="L774" class="LineNr"> 774 </span>  <a href='../403unicode.mu.html#L176'>write-grapheme</a> out-data, g
+<span id="L774" class="LineNr"> 774 </span>  <a href='../403unicode.mu.html#L339'>write-grapheme</a> out-data, g
 <span id="L775" class="LineNr"> 775 </span>  <span class="Delimiter">{</span>
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 <span id="L777" class="LineNr"> 777 </span>    compare <a href='trace.mu.html#L123'>should-trace?</a>, <span class="Constant">0</span>/false
@@ -1035,12 +1035,12 @@ if ('onhashchange' in window) {
 <span id="L971" class="LineNr"> 971 </span>  <span class="PreProc">var</span> _in-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *in-data-ah
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 <span id="L973" class="LineNr"> 973 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
-<span id="L974" class="LineNr"> 974 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L974" class="LineNr"> 974 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
 <span id="L975" class="LineNr"> 975 </span>  <span class="muComment"># if '-', read another</span>
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-<span id="L979" class="LineNr"> 979 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L979" class="LineNr"> 979 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
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 <span id="L981" class="LineNr"> 981 </span>  <span class="Delimiter">{</span>
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@@ -1054,7 +1054,7 @@ if ('onhashchange' in window) {
 <span id="L990" class="LineNr"> 990 </span>      compare done?, <span class="Constant">0</span>/false
 <span id="L991" class="LineNr"> 991 </span>    <span class="Delimiter">}</span>
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-<span id="L993" class="LineNr"> 993 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L993" class="LineNr"> 993 </span>    g <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
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 <span id="L995" class="LineNr"> 995 </span>  <span class="Delimiter">}</span>
 <span id="L996" class="LineNr"> 996 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
@@ -1072,7 +1072,7 @@ if ('onhashchange' in window) {
 <span id="L1008" class="LineNr">1008 </span>  <span class="PreProc">var</span> in-data-ah/eax: (addr handle stream byte) <span class="Special">&lt;-</span> get self, text-data
 <span id="L1009" class="LineNr">1009 </span>  <span class="PreProc">var</span> in-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *in-data-ah
 <span id="L1010" class="LineNr">1010 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
-<span id="L1011" class="LineNr">1011 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L1011" class="LineNr">1011 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
 <span id="L1012" class="LineNr">1012 </span>  <span class="PreProc">var</span> result/eax: boolean <span class="Special">&lt;-</span> <a href='tokenize.mu.html#L934'>bracket-grapheme?</a> g
 <span id="L1013" class="LineNr">1013 </span>  <span class="PreProc">return</span> result
 <span id="L1014" class="LineNr">1014 </span><span class="Delimiter">}</span>
@@ -1119,7 +1119,7 @@ if ('onhashchange' in window) {
 <span id="L1055" class="LineNr">1055 </span>  <span class="PreProc">var</span> _in-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *in-data-ah
 <span id="L1056" class="LineNr">1056 </span>  <span class="PreProc">var</span> in-data/<span class="muRegEcx">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _in-data
 <span id="L1057" class="LineNr">1057 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
-<span id="L1058" class="LineNr">1058 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L1058" class="LineNr">1058 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
 <span id="L1059" class="LineNr">1059 </span>  compare g, <span class="Constant">0x28</span>/open-paren
 <span id="L1060" class="LineNr">1060 </span>  <span class="Delimiter">{</span>
 <span id="L1061" class="LineNr">1061 </span>    <span class="PreProc">break-if-!=</span>
@@ -1135,7 +1135,7 @@ if ('onhashchange' in window) {
 <span id="L1071" class="LineNr">1071 </span>  <span class="PreProc">var</span> _in-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *in-data-ah
 <span id="L1072" class="LineNr">1072 </span>  <span class="PreProc">var</span> in-data/<span class="muRegEcx">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _in-data
 <span id="L1073" class="LineNr">1073 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
-<span id="L1074" class="LineNr">1074 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L1074" class="LineNr">1074 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
 <span id="L1075" class="LineNr">1075 </span>  compare g, <span class="Constant">0x29</span>/close-paren
 <span id="L1076" class="LineNr">1076 </span>  <span class="Delimiter">{</span>
 <span id="L1077" class="LineNr">1077 </span>    <span class="PreProc">break-if-!=</span>
@@ -1151,7 +1151,7 @@ if ('onhashchange' in window) {
 <span id="L1087" class="LineNr">1087 </span>  <span class="PreProc">var</span> _in-data/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *in-data-ah
 <span id="L1088" class="LineNr">1088 </span>  <span class="PreProc">var</span> in-data/<span class="muRegEcx">ecx</span>: (addr stream byte) <span class="Special">&lt;-</span> copy _in-data
 <span id="L1089" class="LineNr">1089 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> in-data
-<span id="L1090" class="LineNr">1090 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L92'>read-grapheme</a> in-data
+<span id="L1090" class="LineNr">1090 </span>  <span class="PreProc">var</span> g/eax: grapheme <span class="Special">&lt;-</span> <a href='../403unicode.mu.html#L236'>read-grapheme</a> in-data
 <span id="L1091" class="LineNr">1091 </span>  compare g, <span class="Constant">0x2e</span>/dot
 <span id="L1092" class="LineNr">1092 </span>  <span class="Delimiter">{</span>
 <span id="L1093" class="LineNr">1093 </span>    <span class="PreProc">break-if-!=</span>
@@ -1277,16 +1277,16 @@ if ('onhashchange' in window) {
 <span id="L1213" class="LineNr">1213 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tokenize.mu.html#L1213'>dump-token-from-cursor</a></span> _t: (addr <a href='tokenize.mu.html#L3'>token</a>) <span class="Delimiter">{</span>
 <span id="L1214" class="LineNr">1214 </span>  <span class="PreProc">var</span> t/<span class="muRegEsi">esi</span>: (addr <a href='tokenize.mu.html#L3'>token</a>) <span class="Special">&lt;-</span> copy _t
 <span id="L1215" class="LineNr">1215 </span>  <span class="PreProc">var</span> <span class="PreProc">type</span>/eax: (addr int) <span class="Special">&lt;-</span> get t, <span class="PreProc">type</span>
-<span id="L1216" class="LineNr">1216 </span>  <a href='../501draw-text.mu.html#L384'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, *<span class="PreProc">type</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
-<span id="L1217" class="LineNr">1217 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; &quot;</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L1216" class="LineNr">1216 </span>  <a href='../501draw-text.mu.html#L394'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, *<span class="PreProc">type</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L1217" class="LineNr">1217 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; &quot;</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
 <span id="L1218" class="LineNr">1218 </span>  <span class="PreProc">var</span> text-ah/eax: (addr handle stream byte) <span class="Special">&lt;-</span> get t, text-data
 <span id="L1219" class="LineNr">1219 </span>  <span class="PreProc">var</span> text/eax: (addr stream byte) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *text-ah
 <span id="L1220" class="LineNr">1220 </span>  <a href='../106stream.subx.html#L59'>rewind-stream</a> text
-<span id="L1221" class="LineNr">1221 </span>  <a href='../501draw-text.mu.html#L232'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, text, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
-<span id="L1222" class="LineNr">1222 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; &quot;</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L1221" class="LineNr">1221 </span>  <a href='../501draw-text.mu.html#L240'>draw-stream-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, text, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L1222" class="LineNr">1222 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; &quot;</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
 <span id="L1223" class="LineNr">1223 </span>  <span class="PreProc">var</span> num/eax: (addr int) <span class="Special">&lt;-</span> get t, number-data
-<span id="L1224" class="LineNr">1224 </span>  <a href='../501draw-text.mu.html#L384'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, *num, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
-<span id="L1225" class="LineNr">1225 </span>  <a href='../501draw-text.mu.html#L276'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;\n&quot;</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L1224" class="LineNr">1224 </span>  <a href='../501draw-text.mu.html#L394'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, *num, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
+<span id="L1225" class="LineNr">1225 </span>  <a href='../501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;\n&quot;</span>, <span class="Constant">7</span>/fg <span class="Constant">0</span>/bg
 <span id="L1226" class="LineNr">1226 </span><span class="Delimiter">}</span>
 </pre>
 </body>
diff --git a/html/shell/trace.mu.html b/html/shell/trace.mu.html
index 43f17c95..7092b507 100644
--- a/html/shell/trace.mu.html
+++ b/html/shell/trace.mu.html
@@ -553,13 +553,13 @@ if ('onhashchange' in window) {
 <span id="L488" class="LineNr"> 488 </span>    <span class="Delimiter">{</span>
 <span id="L489" class="LineNr"> 489 </span>      <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L490" class="LineNr"> 490 </span>      <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L491" class="LineNr"> 491 </span>      width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L491" class="LineNr"> 491 </span>      width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L492" class="LineNr"> 492 </span>      compare width, <span class="Constant">0x80</span>
 <span id="L493" class="LineNr"> 493 </span>      <span class="PreProc">break-if-&lt;</span> $render-trace:render-depth
 <span id="L494" class="LineNr"> 494 </span>    <span class="Delimiter">}</span>
-<span id="L495" class="LineNr"> 495 </span>    <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x70</span>/x, y
-<span id="L496" class="LineNr"> 496 </span>    <a href='../501draw-text.mu.html#L141'>draw-text-rightward-from-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;trace depth: &quot;</span>, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L497" class="LineNr"> 497 </span>    <a href='../501draw-text.mu.html#L384'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, *max-depth, <span class="Constant">0x7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L495" class="LineNr"> 495 </span>    <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x70</span>/x, y
+<span id="L496" class="LineNr"> 496 </span>    <a href='../501draw-text.mu.html#L148'>draw-text-rightward-from-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;trace depth: &quot;</span>, <span class="Constant">0x17</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L497" class="LineNr"> 497 </span>    <a href='../501draw-text.mu.html#L394'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, *max-depth, <span class="Constant">0x7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L498" class="LineNr"> 498 </span>  <span class="Delimiter">}</span>
 <span id="L499" class="LineNr"> 499 </span>  <span class="PreProc">var</span> top-line-addr/<span class="muRegEdx">edx</span>: (addr int) <span class="Special">&lt;-</span> get self, top-line-index
 <span id="L500" class="LineNr"> 500 </span>  <span class="PreProc">var</span> i/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy *top-line-addr
@@ -612,7 +612,7 @@ if ('onhashchange' in window) {
 <span id="L547" class="LineNr"> 547 </span>      <span class="Delimiter">{</span>
 <span id="L548" class="LineNr"> 548 </span>        <span class="PreProc">break-if-!=</span>
 <span id="L549" class="LineNr"> 549 </span>        <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy xmin
-<span id="L550" class="LineNr"> 550 </span>        x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L174'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;...&quot;</span>, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L550" class="LineNr"> 550 </span>        x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L181'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;...&quot;</span>, xmin, ymin, xmax, ymax, x, y, fg, bg
 <span id="L551" class="LineNr"> 551 </span>        y <span class="Special">&lt;-</span> increment
 <span id="L552" class="LineNr"> 552 </span>        copy-to already-hiding-lines?, <span class="Constant">1</span>/true
 <span id="L553" class="LineNr"> 553 </span>      <span class="Delimiter">}</span>
@@ -655,8 +655,8 @@ if ('onhashchange' in window) {
 <span id="L590" class="LineNr"> 590 </span>    <span class="PreProc">break-if-=</span>
 <span id="L591" class="LineNr"> 591 </span>    <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy xsave
 <span id="L592" class="LineNr"> 592 </span>    <span class="Delimiter">{</span>
-<span id="L593" class="LineNr"> 593 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L337'>draw-int32-decimal-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, *depth-a, xmin, ymin, xmax, ymax, x, y, fg, bg
-<span id="L594" class="LineNr"> 594 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L174'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &quot;</span>, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L593" class="LineNr"> 593 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L346'>draw-int32-decimal-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, *depth-a, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L594" class="LineNr"> 594 </span>      x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L181'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; &quot;</span>, xmin, ymin, xmax, ymax, x, y, fg, bg
 <span id="L595" class="LineNr"> 595 </span>      <span class="muComment"># don't show label in UI; it's just for tests</span>
 <span id="L596" class="LineNr"> 596 </span>    <span class="Delimiter">}</span>
 <span id="L597" class="LineNr"> 597 </span>    xsave <span class="Special">&lt;-</span> copy x
@@ -668,12 +668,12 @@ if ('onhashchange' in window) {
 <span id="L603" class="LineNr"> 603 </span>  compare unclip?, <span class="Constant">0</span>/false
 <span id="L604" class="LineNr"> 604 </span>  <span class="Delimiter">{</span>
 <span id="L605" class="LineNr"> 605 </span>    <span class="PreProc">break-if-=</span>
-<span id="L606" class="LineNr"> 606 </span>    x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L174'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, data, xmin, ymin, xmax, ymax, x, y, fg, bg
+<span id="L606" class="LineNr"> 606 </span>    x, y <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L181'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, data, xmin, ymin, xmax, ymax, x, y, fg, bg
 <span id="L607" class="LineNr"> 607 </span>  <span class="Delimiter">}</span>
 <span id="L608" class="LineNr"> 608 </span>  compare unclip?, <span class="Constant">0</span>/false
 <span id="L609" class="LineNr"> 609 </span>  <span class="Delimiter">{</span>
 <span id="L610" class="LineNr"> 610 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L611" class="LineNr"> 611 </span>    x <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L100'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, data, x, xmax, y, fg, bg
+<span id="L611" class="LineNr"> 611 </span>    x <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L106'>draw-text-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, data, x, xmax, y, fg, bg
 <span id="L612" class="LineNr"> 612 </span>  <span class="Delimiter">}</span>
 <span id="L613" class="LineNr"> 613 </span>  y <span class="Special">&lt;-</span> increment
 <span id="L614" class="LineNr"> 614 </span>  <span class="PreProc">return</span> y
@@ -780,7 +780,7 @@ if ('onhashchange' in window) {
 <span id="L715" class="LineNr"> 715 </span>  <span class="Delimiter">}</span>
 <span id="L716" class="LineNr"> 716 </span>  <span class="PreProc">var</span> dummy1/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L717" class="LineNr"> 717 </span>  <span class="PreProc">var</span> dummy2/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L718" class="LineNr"> 718 </span>  dummy1, dummy2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L174'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;...&quot;</span>, xmin, ymin, xmax, ymax, xmin, y, <span class="Constant">9</span>/fg=trace, <span class="Constant">7</span>/cursor-line-bg
+<span id="L718" class="LineNr"> 718 </span>  dummy1, dummy2 <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L181'>draw-text-wrapping-right-then-down</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot;...&quot;</span>, xmin, ymin, xmax, ymax, xmin, y, <span class="Constant">9</span>/fg=trace, <span class="Constant">7</span>/cursor-line-bg
 <span id="L719" class="LineNr"> 719 </span><span class="Delimiter">}</span>
 <span id="L720" class="LineNr"> 720 </span>
 <span id="L721" class="LineNr"> 721 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L721'>test-render-trace-empty</a></span> <span class="Delimiter">{</span>
@@ -790,13 +790,13 @@ if ('onhashchange' in window) {
 <span id="L725" class="LineNr"> 725 </span>  <span class="muComment"># setup: screen</span>
 <span id="L726" class="LineNr"> 726 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L727" class="LineNr"> 727 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L728" class="LineNr"> 728 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L728" class="LineNr"> 728 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L729" class="LineNr"> 729 </span>  <span class="muComment">#</span>
 <span id="L730" class="LineNr"> 730 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
 <span id="L731" class="LineNr"> 731 </span>  <span class="muComment">#</span>
 <span id="L732" class="LineNr"> 732 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">0</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L721'>test-render-trace-empty</a>/cursor&quot;</span>
 <span id="L733" class="LineNr"> 733 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-render-trace-empty&quot;</span>
-<span id="L734" class="LineNr"> 734 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L721'>test-render-trace-empty</a>/bg&quot;</span>
+<span id="L734" class="LineNr"> 734 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L721'>test-render-trace-empty</a>/bg&quot;</span>
 <span id="L735" class="LineNr"> 735 </span><span class="Delimiter">}</span>
 <span id="L736" class="LineNr"> 736 </span>
 <span id="L737" class="LineNr"> 737 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L737'>test-render-trace-empty-2</a></span> <span class="Delimiter">{</span>
@@ -806,13 +806,13 @@ if ('onhashchange' in window) {
 <span id="L741" class="LineNr"> 741 </span>  <span class="muComment"># setup: screen</span>
 <span id="L742" class="LineNr"> 742 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L743" class="LineNr"> 743 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L744" class="LineNr"> 744 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L744" class="LineNr"> 744 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L745" class="LineNr"> 745 </span>  <span class="muComment">#</span>
 <span id="L746" class="LineNr"> 746 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">2</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor  <span class="muComment"># cursor below top row</span>
 <span id="L747" class="LineNr"> 747 </span>  <span class="muComment">#</span>
 <span id="L748" class="LineNr"> 748 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L737'>test-render-trace-empty-2</a>/cursor&quot;</span>
 <span id="L749" class="LineNr"> 749 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-render-trace-empty-2&quot;</span>
-<span id="L750" class="LineNr"> 750 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L737'>test-render-trace-empty-2</a>/bg&quot;</span>
+<span id="L750" class="LineNr"> 750 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L737'>test-render-trace-empty-2</a>/bg&quot;</span>
 <span id="L751" class="LineNr"> 751 </span><span class="Delimiter">}</span>
 <span id="L752" class="LineNr"> 752 </span>
 <span id="L753" class="LineNr"> 753 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L753'>test-render-trace-empty-3</a></span> <span class="Delimiter">{</span>
@@ -822,15 +822,15 @@ if ('onhashchange' in window) {
 <span id="L757" class="LineNr"> 757 </span>  <span class="muComment"># setup: screen</span>
 <span id="L758" class="LineNr"> 758 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L759" class="LineNr"> 759 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L760" class="LineNr"> 760 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L760" class="LineNr"> 760 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L761" class="LineNr"> 761 </span>  <span class="muComment">#</span>
 <span id="L762" class="LineNr"> 762 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">2</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor  <span class="muComment"># try show cursor</span>
 <span id="L763" class="LineNr"> 763 </span>  <span class="muComment"># still no cursor to show</span>
 <span id="L764" class="LineNr"> 764 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L753'>test-render-trace-empty-3</a>/cursor&quot;</span>
 <span id="L765" class="LineNr"> 765 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L753'>test-render-trace-empty-3</a>/line-above-cursor&quot;</span>
-<span id="L766" class="LineNr"> 766 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L753'>test-render-trace-empty-3</a>/bg-for-line-above-cursor&quot;</span>
+<span id="L766" class="LineNr"> 766 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L753'>test-render-trace-empty-3</a>/bg-for-line-above-cursor&quot;</span>
 <span id="L767" class="LineNr"> 767 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - test-render-trace-empty-3&quot;</span>
-<span id="L768" class="LineNr"> 768 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L753'>test-render-trace-empty-3</a>/bg&quot;</span>
+<span id="L768" class="LineNr"> 768 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;    &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L753'>test-render-trace-empty-3</a>/bg&quot;</span>
 <span id="L769" class="LineNr"> 769 </span><span class="Delimiter">}</span>
 <span id="L770" class="LineNr"> 770 </span>
 <span id="L771" class="LineNr"> 771 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L771'>test-render-trace-collapsed-by-default</a></span> <span class="Delimiter">{</span>
@@ -841,7 +841,7 @@ if ('onhashchange' in window) {
 <span id="L776" class="LineNr"> 776 </span>  <span class="muComment"># setup: screen</span>
 <span id="L777" class="LineNr"> 777 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L778" class="LineNr"> 778 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L779" class="LineNr"> 779 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L779" class="LineNr"> 779 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">5</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L780" class="LineNr"> 780 </span>  <span class="muComment">#</span>
 <span id="L781" class="LineNr"> 781 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">5</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
 <span id="L782" class="LineNr"> 782 </span>  <span class="muComment">#</span>
@@ -857,7 +857,7 @@ if ('onhashchange' in window) {
 <span id="L792" class="LineNr"> 792 </span>  <span class="muComment"># setup: screen</span>
 <span id="L793" class="LineNr"> 793 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L794" class="LineNr"> 794 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L795" class="LineNr"> 795 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L795" class="LineNr"> 795 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L796" class="LineNr"> 796 </span>  <span class="muComment">#</span>
 <span id="L797" class="LineNr"> 797 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
 <span id="L798" class="LineNr"> 798 </span>  <span class="muComment">#</span>
@@ -875,7 +875,7 @@ if ('onhashchange' in window) {
 <span id="L810" class="LineNr"> 810 </span>  <span class="muComment"># setup: screen</span>
 <span id="L811" class="LineNr"> 811 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L812" class="LineNr"> 812 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L813" class="LineNr"> 813 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L813" class="LineNr"> 813 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L814" class="LineNr"> 814 </span>  <span class="muComment">#</span>
 <span id="L815" class="LineNr"> 815 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
 <span id="L816" class="LineNr"> 816 </span>  <span class="muComment">#</span>
@@ -894,7 +894,7 @@ if ('onhashchange' in window) {
 <span id="L829" class="LineNr"> 829 </span>  <span class="muComment"># setup: screen</span>
 <span id="L830" class="LineNr"> 830 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L831" class="LineNr"> 831 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L832" class="LineNr"> 832 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L832" class="LineNr"> 832 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L833" class="LineNr"> 833 </span>  <span class="muComment">#</span>
 <span id="L834" class="LineNr"> 834 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
 <span id="L835" class="LineNr"> 835 </span>  <span class="muComment">#</span>
@@ -914,7 +914,7 @@ if ('onhashchange' in window) {
 <span id="L849" class="LineNr"> 849 </span>  <span class="muComment"># setup: screen</span>
 <span id="L850" class="LineNr"> 850 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L851" class="LineNr"> 851 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L852" class="LineNr"> 852 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L852" class="LineNr"> 852 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L853" class="LineNr"> 853 </span>  <span class="muComment">#</span>
 <span id="L854" class="LineNr"> 854 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">0</span>/no-cursor
 <span id="L855" class="LineNr"> 855 </span>  <span class="muComment">#</span>
@@ -935,38 +935,38 @@ if ('onhashchange' in window) {
 <span id="L870" class="LineNr"> 870 </span>  <span class="muComment"># setup: screen</span>
 <span id="L871" class="LineNr"> 871 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L872" class="LineNr"> 872 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L873" class="LineNr"> 873 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L873" class="LineNr"> 873 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L874" class="LineNr"> 874 </span>  <span class="muComment">#</span>
 <span id="L875" class="LineNr"> 875 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L876" class="LineNr"> 876 </span>  <span class="muComment">#</span>
 <span id="L877" class="LineNr"> 877 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/0&quot;</span>
-<span id="L878" class="LineNr"> 878 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/0/cursor&quot;</span>
+<span id="L878" class="LineNr"> 878 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/0/cursor&quot;</span>
 <span id="L879" class="LineNr"> 879 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/1&quot;</span>
-<span id="L880" class="LineNr"> 880 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/1/cursor&quot;</span>
+<span id="L880" class="LineNr"> 880 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/1/cursor&quot;</span>
 <span id="L881" class="LineNr"> 881 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/2&quot;</span>
-<span id="L882" class="LineNr"> 882 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/2/cursor&quot;</span>
+<span id="L882" class="LineNr"> 882 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L862'>test-render-trace-cursor-in-single-line</a>/2/cursor&quot;</span>
 <span id="L883" class="LineNr"> 883 </span><span class="Delimiter">}</span>
 <span id="L884" class="LineNr"> 884 </span>
 <span id="L885" class="LineNr"> 885 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L885'>render-trace-menu</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Delimiter">{</span>
 <span id="L886" class="LineNr"> 886 </span>  <span class="PreProc">var</span> width/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L887" class="LineNr"> 887 </span>  <span class="PreProc">var</span> height/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L888" class="LineNr"> 888 </span>  width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L86'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L888" class="LineNr"> 888 </span>  width, height <span class="Special">&lt;-</span> <a href='../500fake-screen.mu.html#L73'>screen-size</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L889" class="LineNr"> 889 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy height
 <span id="L890" class="LineNr"> 890 </span>  y <span class="Special">&lt;-</span> decrement
 <span id="L891" class="LineNr"> 891 </span>  <span class="PreProc">var</span> height/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy y
 <span id="L892" class="LineNr"> 892 </span>  height <span class="Special">&lt;-</span> increment
-<span id="L893" class="LineNr"> 893 </span>  <a href='../500fake-screen.mu.html#L353'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L894" class="LineNr"> 894 </span>  <a href='../500fake-screen.mu.html#L190'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
-<span id="L895" class="LineNr"> 895 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L896" class="LineNr"> 896 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L897" class="LineNr"> 897 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L898" class="LineNr"> 898 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L899" class="LineNr"> 899 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">3</span>/bg=keyboard
-<span id="L900" class="LineNr"> 900 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to keyboard  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L901" class="LineNr"> 901 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; enter/bksp &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L902" class="LineNr"> 902 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; <a href='trace.mu.html#L985'>expand</a>/collapse  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
-<span id="L903" class="LineNr"> 903 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
-<span id="L904" class="LineNr"> 904 </span>  <a href='../501draw-text.mu.html#L133'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; show whole line  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L893" class="LineNr"> 893 </span>  <a href='../500fake-screen.mu.html#L409'>clear-rect</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y, width, height, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L894" class="LineNr"> 894 </span>  <a href='../500fake-screen.mu.html#L246'>set-cursor-position</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>/x, y
+<span id="L895" class="LineNr"> 895 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^r &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L896" class="LineNr"> 896 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; run <a href='main.mu.html#L4'>main</a>  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L897" class="LineNr"> 897 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^g &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L898" class="LineNr"> 898 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; go to  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L899" class="LineNr"> 899 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^m &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">3</span>/bg=keyboard
+<span id="L900" class="LineNr"> 900 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; to keyboard  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L901" class="LineNr"> 901 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; enter/bksp &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L902" class="LineNr"> 902 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; <a href='trace.mu.html#L985'>expand</a>/collapse  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
+<span id="L903" class="LineNr"> 903 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; ^s &quot;</span>, width, <span class="Constant">0</span>/fg, <span class="Constant">0x5c</span>/bg=menu-highlight
+<span id="L904" class="LineNr"> 904 </span>  <a href='../501draw-text.mu.html#L140'>draw-text-rightward-from-cursor</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">&quot; show whole line  &quot;</span>, width, <span class="Constant">7</span>/fg, <span class="Constant">0xc5</span>/bg=blue-bg
 <span id="L905" class="LineNr"> 905 </span><span class="Delimiter">}</span>
 <span id="L906" class="LineNr"> 906 </span>
 <span id="L907" class="LineNr"> 907 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L907'>edit-trace</a></span> _self: (addr trace), key: grapheme <span class="Delimiter">{</span>
@@ -1241,36 +1241,36 @@ if ('onhashchange' in window) {
 <span id="L1176" class="LineNr">1176 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1177" class="LineNr">1177 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1178" class="LineNr">1178 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1179" class="LineNr">1179 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1179" class="LineNr">1179 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1180" class="LineNr">1180 </span>  <span class="muComment">#</span>
 <span id="L1181" class="LineNr">1181 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1182" class="LineNr">1182 </span>  <span class="muComment">#</span>
 <span id="L1183" class="LineNr">1183 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-0&quot;</span>
-<span id="L1184" class="LineNr">1184 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-0/cursor&quot;</span>
+<span id="L1184" class="LineNr">1184 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-0/cursor&quot;</span>
 <span id="L1185" class="LineNr">1185 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-1&quot;</span>
-<span id="L1186" class="LineNr">1186 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-1/cursor&quot;</span>
+<span id="L1186" class="LineNr">1186 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-1/cursor&quot;</span>
 <span id="L1187" class="LineNr">1187 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-2&quot;</span>
-<span id="L1188" class="LineNr">1188 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-2/cursor&quot;</span>
+<span id="L1188" class="LineNr">1188 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/pre-2/cursor&quot;</span>
 <span id="L1189" class="LineNr">1189 </span>  <span class="muComment"># cursor down</span>
 <span id="L1190" class="LineNr">1190 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1191" class="LineNr">1191 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1192" class="LineNr">1192 </span>  <span class="muComment">#</span>
 <span id="L1193" class="LineNr">1193 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-0&quot;</span>
-<span id="L1194" class="LineNr">1194 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-0/cursor&quot;</span>
+<span id="L1194" class="LineNr">1194 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-0/cursor&quot;</span>
 <span id="L1195" class="LineNr">1195 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-1&quot;</span>
-<span id="L1196" class="LineNr">1196 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-1/cursor&quot;</span>
+<span id="L1196" class="LineNr">1196 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-1/cursor&quot;</span>
 <span id="L1197" class="LineNr">1197 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-2&quot;</span>
-<span id="L1198" class="LineNr">1198 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-2/cursor&quot;</span>
+<span id="L1198" class="LineNr">1198 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/down-2/cursor&quot;</span>
 <span id="L1199" class="LineNr">1199 </span>  <span class="muComment"># cursor up</span>
 <span id="L1200" class="LineNr">1200 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6b</span>/k
 <span id="L1201" class="LineNr">1201 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1202" class="LineNr">1202 </span>  <span class="muComment">#</span>
 <span id="L1203" class="LineNr">1203 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-0&quot;</span>
-<span id="L1204" class="LineNr">1204 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-0/cursor&quot;</span>
+<span id="L1204" class="LineNr">1204 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-0/cursor&quot;</span>
 <span id="L1205" class="LineNr">1205 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-1&quot;</span>
-<span id="L1206" class="LineNr">1206 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-1/cursor&quot;</span>
+<span id="L1206" class="LineNr">1206 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-1/cursor&quot;</span>
 <span id="L1207" class="LineNr">1207 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-2&quot;</span>
-<span id="L1208" class="LineNr">1208 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-2/cursor&quot;</span>
+<span id="L1208" class="LineNr">1208 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1168'>test-cursor-down-and-up-within-trace</a>/up-2/cursor&quot;</span>
 <span id="L1209" class="LineNr">1209 </span><span class="Delimiter">}</span>
 <span id="L1210" class="LineNr">1210 </span>
 <span id="L1211" class="LineNr">1211 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a></span> <span class="Delimiter">{</span>
@@ -1284,16 +1284,16 @@ if ('onhashchange' in window) {
 <span id="L1219" class="LineNr">1219 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1220" class="LineNr">1220 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1221" class="LineNr">1221 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1222" class="LineNr">1222 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1222" class="LineNr">1222 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0xa</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1223" class="LineNr">1223 </span>  <span class="muComment">#</span>
 <span id="L1224" class="LineNr">1224 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1225" class="LineNr">1225 </span>  <span class="muComment">#</span>
 <span id="L1226" class="LineNr">1226 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-0&quot;</span>
-<span id="L1227" class="LineNr">1227 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-0/cursor&quot;</span>
+<span id="L1227" class="LineNr">1227 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-0/cursor&quot;</span>
 <span id="L1228" class="LineNr">1228 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-1&quot;</span>
-<span id="L1229" class="LineNr">1229 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-1/cursor&quot;</span>
+<span id="L1229" class="LineNr">1229 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-1/cursor&quot;</span>
 <span id="L1230" class="LineNr">1230 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-2&quot;</span>
-<span id="L1231" class="LineNr">1231 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-2/cursor&quot;</span>
+<span id="L1231" class="LineNr">1231 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/pre-2/cursor&quot;</span>
 <span id="L1232" class="LineNr">1232 </span>  <span class="muComment"># cursor down several times</span>
 <span id="L1233" class="LineNr">1233 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1234" class="LineNr">1234 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
@@ -1304,11 +1304,11 @@ if ('onhashchange' in window) {
 <span id="L1239" class="LineNr">1239 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0xa</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1240" class="LineNr">1240 </span>  <span class="muComment"># cursor clamps at bottom</span>
 <span id="L1241" class="LineNr">1241 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-0&quot;</span>
-<span id="L1242" class="LineNr">1242 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-0/cursor&quot;</span>
+<span id="L1242" class="LineNr">1242 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-0/cursor&quot;</span>
 <span id="L1243" class="LineNr">1243 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;error &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-1&quot;</span>
-<span id="L1244" class="LineNr">1244 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-1/cursor&quot;</span>
+<span id="L1244" class="LineNr">1244 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-1/cursor&quot;</span>
 <span id="L1245" class="LineNr">1245 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;...   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-2&quot;</span>
-<span id="L1246" class="LineNr">1246 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-2/cursor&quot;</span>
+<span id="L1246" class="LineNr">1246 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;|||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1211'>test-cursor-down-past-bottom-of-trace</a>/down-2/cursor&quot;</span>
 <span id="L1247" class="LineNr">1247 </span><span class="Delimiter">}</span>
 <span id="L1248" class="LineNr">1248 </span>
 <span id="L1249" class="LineNr">1249 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1249'>test-expand-within-trace</a></span> <span class="Delimiter">{</span>
@@ -1321,24 +1321,24 @@ if ('onhashchange' in window) {
 <span id="L1256" class="LineNr">1256 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1257" class="LineNr">1257 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1258" class="LineNr">1258 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1259" class="LineNr">1259 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1259" class="LineNr">1259 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1260" class="LineNr">1260 </span>  <span class="muComment">#</span>
 <span id="L1261" class="LineNr">1261 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1262" class="LineNr">1262 </span>  <span class="muComment">#</span>
 <span id="L1263" class="LineNr">1263 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/pre-0&quot;</span>
-<span id="L1264" class="LineNr">1264 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/pre-0/cursor&quot;</span>
+<span id="L1264" class="LineNr">1264 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/pre-0/cursor&quot;</span>
 <span id="L1265" class="LineNr">1265 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/pre-1&quot;</span>
-<span id="L1266" class="LineNr">1266 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/pre-1/cursor&quot;</span>
+<span id="L1266" class="LineNr">1266 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/pre-1/cursor&quot;</span>
 <span id="L1267" class="LineNr">1267 </span>  <span class="muComment"># expand</span>
 <span id="L1268" class="LineNr">1268 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1269" class="LineNr">1269 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1270" class="LineNr">1270 </span>  <span class="muComment">#</span>
 <span id="L1271" class="LineNr">1271 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-0&quot;</span>
-<span id="L1272" class="LineNr">1272 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-0/cursor&quot;</span>
+<span id="L1272" class="LineNr">1272 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-0/cursor&quot;</span>
 <span id="L1273" class="LineNr">1273 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-1&quot;</span>
-<span id="L1274" class="LineNr">1274 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-1/cursor&quot;</span>
+<span id="L1274" class="LineNr">1274 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-1/cursor&quot;</span>
 <span id="L1275" class="LineNr">1275 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-2&quot;</span>
-<span id="L1276" class="LineNr">1276 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-2/cursor&quot;</span>
+<span id="L1276" class="LineNr">1276 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1249'>test-expand-within-trace</a>/expand-2/cursor&quot;</span>
 <span id="L1277" class="LineNr">1277 </span><span class="Delimiter">}</span>
 <span id="L1278" class="LineNr">1278 </span>
 <span id="L1279" class="LineNr">1279 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a></span> <span class="Delimiter">{</span>
@@ -1352,24 +1352,24 @@ if ('onhashchange' in window) {
 <span id="L1287" class="LineNr">1287 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1288" class="LineNr">1288 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1289" class="LineNr">1289 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1290" class="LineNr">1290 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1290" class="LineNr">1290 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1291" class="LineNr">1291 </span>  <span class="muComment">#</span>
 <span id="L1292" class="LineNr">1292 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1293" class="LineNr">1293 </span>  <span class="muComment">#</span>
 <span id="L1294" class="LineNr">1294 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/pre-0&quot;</span>
-<span id="L1295" class="LineNr">1295 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/pre-0/cursor&quot;</span>
+<span id="L1295" class="LineNr">1295 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/pre-0/cursor&quot;</span>
 <span id="L1296" class="LineNr">1296 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/pre-1&quot;</span>
-<span id="L1297" class="LineNr">1297 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/pre-1/cursor&quot;</span>
+<span id="L1297" class="LineNr">1297 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/pre-1/cursor&quot;</span>
 <span id="L1298" class="LineNr">1298 </span>  <span class="muComment"># expand</span>
 <span id="L1299" class="LineNr">1299 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1300" class="LineNr">1300 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1301" class="LineNr">1301 </span>  <span class="muComment">#</span>
 <span id="L1302" class="LineNr">1302 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-0&quot;</span>
-<span id="L1303" class="LineNr">1303 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-0/cursor&quot;</span>
+<span id="L1303" class="LineNr">1303 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-0/cursor&quot;</span>
 <span id="L1304" class="LineNr">1304 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-1&quot;</span>
-<span id="L1305" class="LineNr">1305 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-1/cursor&quot;</span>
+<span id="L1305" class="LineNr">1305 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-1/cursor&quot;</span>
 <span id="L1306" class="LineNr">1306 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-2&quot;</span>
-<span id="L1307" class="LineNr">1307 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-2/cursor&quot;</span>
+<span id="L1307" class="LineNr">1307 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1279'>test-trace-expand-skips-lower-depth</a>/expand-2/cursor&quot;</span>
 <span id="L1308" class="LineNr">1308 </span><span class="Delimiter">}</span>
 <span id="L1309" class="LineNr">1309 </span>
 <span id="L1310" class="LineNr">1310 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a></span> <span class="Delimiter">{</span>
@@ -1385,25 +1385,25 @@ if ('onhashchange' in window) {
 <span id="L1320" class="LineNr">1320 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1321" class="LineNr">1321 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1322" class="LineNr">1322 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1323" class="LineNr">1323 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1323" class="LineNr">1323 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1324" class="LineNr">1324 </span>  <span class="muComment">#</span>
 <span id="L1325" class="LineNr">1325 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1326" class="LineNr">1326 </span>  <span class="muComment">#</span>
 <span id="L1327" class="LineNr">1327 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/pre-0&quot;</span>
-<span id="L1328" class="LineNr">1328 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/pre-0/cursor&quot;</span>
+<span id="L1328" class="LineNr">1328 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/pre-0/cursor&quot;</span>
 <span id="L1329" class="LineNr">1329 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/pre-1&quot;</span>
-<span id="L1330" class="LineNr">1330 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/pre-1/cursor&quot;</span>
+<span id="L1330" class="LineNr">1330 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/pre-1/cursor&quot;</span>
 <span id="L1331" class="LineNr">1331 </span>  <span class="muComment"># expand</span>
 <span id="L1332" class="LineNr">1332 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1333" class="LineNr">1333 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1334" class="LineNr">1334 </span>  <span class="muComment">#</span>
 <span id="L1335" class="LineNr">1335 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-0&quot;</span>
-<span id="L1336" class="LineNr">1336 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-0/cursor&quot;</span>
+<span id="L1336" class="LineNr">1336 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-0/cursor&quot;</span>
 <span id="L1337" class="LineNr">1337 </span>  <span class="muComment"># TODO: might be too wasteful to show every place where lines are hidden</span>
 <span id="L1338" class="LineNr">1338 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...      &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-1&quot;</span>
-<span id="L1339" class="LineNr">1339 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-1/cursor&quot;</span>
+<span id="L1339" class="LineNr">1339 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-1/cursor&quot;</span>
 <span id="L1340" class="LineNr">1340 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-2&quot;</span>
-<span id="L1341" class="LineNr">1341 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-2/cursor&quot;</span>
+<span id="L1341" class="LineNr">1341 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;         &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1310'>test-trace-expand-continues-past-lower-depth</a>/expand-2/cursor&quot;</span>
 <span id="L1342" class="LineNr">1342 </span><span class="Delimiter">}</span>
 <span id="L1343" class="LineNr">1343 </span>
 <span id="L1344" class="LineNr">1344 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a></span> <span class="Delimiter">{</span>
@@ -1424,28 +1424,28 @@ if ('onhashchange' in window) {
 <span id="L1359" class="LineNr">1359 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1360" class="LineNr">1360 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1361" class="LineNr">1361 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1362" class="LineNr">1362 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">8</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1362" class="LineNr">1362 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">8</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1363" class="LineNr">1363 </span>  <span class="muComment">#</span>
 <span id="L1364" class="LineNr">1364 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1365" class="LineNr">1365 </span>  <span class="muComment">#</span>
 <span id="L1366" class="LineNr">1366 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/pre-0&quot;</span>
-<span id="L1367" class="LineNr">1367 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/pre-0/cursor&quot;</span>
+<span id="L1367" class="LineNr">1367 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/pre-0/cursor&quot;</span>
 <span id="L1368" class="LineNr">1368 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/pre-1&quot;</span>
-<span id="L1369" class="LineNr">1369 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/pre-1/cursor&quot;</span>
+<span id="L1369" class="LineNr">1369 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/pre-1/cursor&quot;</span>
 <span id="L1370" class="LineNr">1370 </span>  <span class="muComment"># expand</span>
 <span id="L1371" class="LineNr">1371 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1372" class="LineNr">1372 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1373" class="LineNr">1373 </span>  <span class="muComment">#</span>
 <span id="L1374" class="LineNr">1374 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;2 line 1.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-0&quot;</span>
-<span id="L1375" class="LineNr">1375 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-0/cursor&quot;</span>
+<span id="L1375" class="LineNr">1375 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-0/cursor&quot;</span>
 <span id="L1376" class="LineNr">1376 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-1&quot;</span>
-<span id="L1377" class="LineNr">1377 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-1/cursor&quot;</span>
+<span id="L1377" class="LineNr">1377 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-1/cursor&quot;</span>
 <span id="L1378" class="LineNr">1378 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;2 line 1.2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-2&quot;</span>
-<span id="L1379" class="LineNr">1379 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-2/cursor&quot;</span>
+<span id="L1379" class="LineNr">1379 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-2/cursor&quot;</span>
 <span id="L1380" class="LineNr">1380 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-3&quot;</span>
-<span id="L1381" class="LineNr">1381 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-3/cursor&quot;</span>
+<span id="L1381" class="LineNr">1381 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-3/cursor&quot;</span>
 <span id="L1382" class="LineNr">1382 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-4&quot;</span>
-<span id="L1383" class="LineNr">1383 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-4/cursor&quot;</span>
+<span id="L1383" class="LineNr">1383 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1344'>test-trace-expand-stops-at-higher-depth</a>/expand-4/cursor&quot;</span>
 <span id="L1384" class="LineNr">1384 </span><span class="Delimiter">}</span>
 <span id="L1385" class="LineNr">1385 </span>
 <span id="L1386" class="LineNr">1386 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1386'>test-trace-expand-twice</a></span> <span class="Delimiter">{</span>
@@ -1461,45 +1461,45 @@ if ('onhashchange' in window) {
 <span id="L1396" class="LineNr">1396 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1397" class="LineNr">1397 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1398" class="LineNr">1398 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1399" class="LineNr">1399 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1399" class="LineNr">1399 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1400" class="LineNr">1400 </span>  <span class="muComment">#</span>
 <span id="L1401" class="LineNr">1401 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1402" class="LineNr">1402 </span>  <span class="muComment">#</span>
 <span id="L1403" class="LineNr">1403 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/pre-0&quot;</span>
-<span id="L1404" class="LineNr">1404 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/pre-0/cursor&quot;</span>
+<span id="L1404" class="LineNr">1404 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/pre-0/cursor&quot;</span>
 <span id="L1405" class="LineNr">1405 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/pre-1&quot;</span>
-<span id="L1406" class="LineNr">1406 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/pre-1/cursor&quot;</span>
+<span id="L1406" class="LineNr">1406 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/pre-1/cursor&quot;</span>
 <span id="L1407" class="LineNr">1407 </span>  <span class="muComment"># expand</span>
 <span id="L1408" class="LineNr">1408 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1409" class="LineNr">1409 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1410" class="LineNr">1410 </span>  <span class="muComment">#</span>
 <span id="L1411" class="LineNr">1411 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-0&quot;</span>
-<span id="L1412" class="LineNr">1412 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-0/cursor&quot;</span>
+<span id="L1412" class="LineNr">1412 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-0/cursor&quot;</span>
 <span id="L1413" class="LineNr">1413 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-1&quot;</span>
-<span id="L1414" class="LineNr">1414 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-1/cursor&quot;</span>
+<span id="L1414" class="LineNr">1414 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-1/cursor&quot;</span>
 <span id="L1415" class="LineNr">1415 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-2&quot;</span>
-<span id="L1416" class="LineNr">1416 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-2/cursor&quot;</span>
+<span id="L1416" class="LineNr">1416 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand-2/cursor&quot;</span>
 <span id="L1417" class="LineNr">1417 </span>  <span class="muComment"># cursor down</span>
 <span id="L1418" class="LineNr">1418 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1419" class="LineNr">1419 </span>  <span class="muComment"># hack: we need to render here to make this test pass; we're mixing state management with rendering</span>
 <span id="L1420" class="LineNr">1420 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1421" class="LineNr">1421 </span>  <span class="muComment">#</span>
 <span id="L1422" class="LineNr">1422 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-0&quot;</span>
-<span id="L1423" class="LineNr">1423 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-0/cursor&quot;</span>
+<span id="L1423" class="LineNr">1423 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-0/cursor&quot;</span>
 <span id="L1424" class="LineNr">1424 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-1&quot;</span>
-<span id="L1425" class="LineNr">1425 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-1/cursor&quot;</span>
+<span id="L1425" class="LineNr">1425 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-1/cursor&quot;</span>
 <span id="L1426" class="LineNr">1426 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-2&quot;</span>
-<span id="L1427" class="LineNr">1427 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-2/cursor&quot;</span>
+<span id="L1427" class="LineNr">1427 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/down-2/cursor&quot;</span>
 <span id="L1428" class="LineNr">1428 </span>  <span class="muComment"># expand again</span>
 <span id="L1429" class="LineNr">1429 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1430" class="LineNr">1430 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1431" class="LineNr">1431 </span>  <span class="muComment">#</span>
 <span id="L1432" class="LineNr">1432 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-0&quot;</span>
-<span id="L1433" class="LineNr">1433 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-0/cursor&quot;</span>
+<span id="L1433" class="LineNr">1433 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-0/cursor&quot;</span>
 <span id="L1434" class="LineNr">1434 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;2 line 1.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-1&quot;</span>
-<span id="L1435" class="LineNr">1435 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-1/cursor&quot;</span>
+<span id="L1435" class="LineNr">1435 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-1/cursor&quot;</span>
 <span id="L1436" class="LineNr">1436 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-2&quot;</span>
-<span id="L1437" class="LineNr">1437 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-2/cursor&quot;</span>
+<span id="L1437" class="LineNr">1437 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1386'>test-trace-expand-twice</a>/expand2-2/cursor&quot;</span>
 <span id="L1438" class="LineNr">1438 </span><span class="Delimiter">}</span>
 <span id="L1439" class="LineNr">1439 </span>
 <span id="L1440" class="LineNr">1440 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a></span> <span class="Delimiter">{</span>
@@ -1513,35 +1513,35 @@ if ('onhashchange' in window) {
 <span id="L1448" class="LineNr">1448 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1449" class="LineNr">1449 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1450" class="LineNr">1450 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1451" class="LineNr">1451 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1451" class="LineNr">1451 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1452" class="LineNr">1452 </span>  <span class="muComment">#</span>
 <span id="L1453" class="LineNr">1453 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1454" class="LineNr">1454 </span>  <span class="muComment">#</span>
 <span id="L1455" class="LineNr">1455 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/pre-0&quot;</span>
-<span id="L1456" class="LineNr">1456 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/pre-0/cursor&quot;</span>
+<span id="L1456" class="LineNr">1456 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/pre-0/cursor&quot;</span>
 <span id="L1457" class="LineNr">1457 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/pre-1&quot;</span>
-<span id="L1458" class="LineNr">1458 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/pre-1/cursor&quot;</span>
+<span id="L1458" class="LineNr">1458 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/pre-1/cursor&quot;</span>
 <span id="L1459" class="LineNr">1459 </span>  <span class="muComment"># expand</span>
 <span id="L1460" class="LineNr">1460 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1461" class="LineNr">1461 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1462" class="LineNr">1462 </span>  <span class="muComment">#</span>
 <span id="L1463" class="LineNr">1463 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-0&quot;</span>
-<span id="L1464" class="LineNr">1464 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-0/cursor&quot;</span>
+<span id="L1464" class="LineNr">1464 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-0/cursor&quot;</span>
 <span id="L1465" class="LineNr">1465 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-1&quot;</span>
-<span id="L1466" class="LineNr">1466 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-1/cursor&quot;</span>
+<span id="L1466" class="LineNr">1466 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-1/cursor&quot;</span>
 <span id="L1467" class="LineNr">1467 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-2&quot;</span>
-<span id="L1468" class="LineNr">1468 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-2/cursor&quot;</span>
+<span id="L1468" class="LineNr">1468 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/expand-2/cursor&quot;</span>
 <span id="L1469" class="LineNr">1469 </span>  <span class="muComment"># cursor down</span>
 <span id="L1470" class="LineNr">1470 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1471" class="LineNr">1471 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1472" class="LineNr">1472 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1473" class="LineNr">1473 </span>  <span class="muComment">#</span>
 <span id="L1474" class="LineNr">1474 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-0&quot;</span>
-<span id="L1475" class="LineNr">1475 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-0/cursor&quot;</span>
+<span id="L1475" class="LineNr">1475 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-0/cursor&quot;</span>
 <span id="L1476" class="LineNr">1476 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-1&quot;</span>
-<span id="L1477" class="LineNr">1477 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-1/cursor&quot;</span>
+<span id="L1477" class="LineNr">1477 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-1/cursor&quot;</span>
 <span id="L1478" class="LineNr">1478 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-2&quot;</span>
-<span id="L1479" class="LineNr">1479 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-2/cursor&quot;</span>
+<span id="L1479" class="LineNr">1479 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/down-2/cursor&quot;</span>
 <span id="L1480" class="LineNr">1480 </span>  <span class="muComment"># recreate trace</span>
 <span id="L1481" class="LineNr">1481 </span>  <a href='trace.mu.html#L80'>clear-trace</a> t
 <span id="L1482" class="LineNr">1482 </span>  <a href='trace.mu.html#L185'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 1&quot;</span>
@@ -1550,11 +1550,11 @@ if ('onhashchange' in window) {
 <span id="L1485" class="LineNr">1485 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1486" class="LineNr">1486 </span>  <span class="muComment"># cursor remains unchanged</span>
 <span id="L1487" class="LineNr">1487 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-0&quot;</span>
-<span id="L1488" class="LineNr">1488 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-0/cursor&quot;</span>
+<span id="L1488" class="LineNr">1488 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-0/cursor&quot;</span>
 <span id="L1489" class="LineNr">1489 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-1&quot;</span>
-<span id="L1490" class="LineNr">1490 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-1/cursor&quot;</span>
+<span id="L1490" class="LineNr">1490 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-1/cursor&quot;</span>
 <span id="L1491" class="LineNr">1491 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-2&quot;</span>
-<span id="L1492" class="LineNr">1492 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-2/cursor&quot;</span>
+<span id="L1492" class="LineNr">1492 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1440'>test-trace-refresh-cursor</a>/refresh-2/cursor&quot;</span>
 <span id="L1493" class="LineNr">1493 </span><span class="Delimiter">}</span>
 <span id="L1494" class="LineNr">1494 </span>
 <span id="L1495" class="LineNr">1495 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a></span> <span class="Delimiter">{</span>
@@ -1568,35 +1568,35 @@ if ('onhashchange' in window) {
 <span id="L1503" class="LineNr">1503 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1504" class="LineNr">1504 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1505" class="LineNr">1505 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1506" class="LineNr">1506 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1506" class="LineNr">1506 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1507" class="LineNr">1507 </span>  <span class="muComment">#</span>
 <span id="L1508" class="LineNr">1508 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1509" class="LineNr">1509 </span>  <span class="muComment">#</span>
 <span id="L1510" class="LineNr">1510 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/pre-0&quot;</span>
-<span id="L1511" class="LineNr">1511 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/pre-0/cursor&quot;</span>
+<span id="L1511" class="LineNr">1511 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/pre-0/cursor&quot;</span>
 <span id="L1512" class="LineNr">1512 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/pre-1&quot;</span>
-<span id="L1513" class="LineNr">1513 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/pre-1/cursor&quot;</span>
+<span id="L1513" class="LineNr">1513 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/pre-1/cursor&quot;</span>
 <span id="L1514" class="LineNr">1514 </span>  <span class="muComment"># expand</span>
 <span id="L1515" class="LineNr">1515 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1516" class="LineNr">1516 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1517" class="LineNr">1517 </span>  <span class="muComment">#</span>
 <span id="L1518" class="LineNr">1518 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-0&quot;</span>
-<span id="L1519" class="LineNr">1519 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-0/cursor&quot;</span>
+<span id="L1519" class="LineNr">1519 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-0/cursor&quot;</span>
 <span id="L1520" class="LineNr">1520 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-1&quot;</span>
-<span id="L1521" class="LineNr">1521 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-1/cursor&quot;</span>
+<span id="L1521" class="LineNr">1521 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-1/cursor&quot;</span>
 <span id="L1522" class="LineNr">1522 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-2&quot;</span>
-<span id="L1523" class="LineNr">1523 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;              &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-2/cursor&quot;</span>
+<span id="L1523" class="LineNr">1523 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;              &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/expand-2/cursor&quot;</span>
 <span id="L1524" class="LineNr">1524 </span>  <span class="muComment"># cursor down</span>
 <span id="L1525" class="LineNr">1525 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1526" class="LineNr">1526 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1527" class="LineNr">1527 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1528" class="LineNr">1528 </span>  <span class="muComment">#</span>
 <span id="L1529" class="LineNr">1529 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-0&quot;</span>
-<span id="L1530" class="LineNr">1530 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-0/cursor&quot;</span>
+<span id="L1530" class="LineNr">1530 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-0/cursor&quot;</span>
 <span id="L1531" class="LineNr">1531 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-1&quot;</span>
-<span id="L1532" class="LineNr">1532 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-1/cursor&quot;</span>
+<span id="L1532" class="LineNr">1532 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-1/cursor&quot;</span>
 <span id="L1533" class="LineNr">1533 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-2&quot;</span>
-<span id="L1534" class="LineNr">1534 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-2/cursor&quot;</span>
+<span id="L1534" class="LineNr">1534 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/down-2/cursor&quot;</span>
 <span id="L1535" class="LineNr">1535 </span>  <span class="muComment"># recreate trace with slightly different lines</span>
 <span id="L1536" class="LineNr">1536 </span>  <a href='trace.mu.html#L80'>clear-trace</a> t
 <span id="L1537" class="LineNr">1537 </span>  <a href='trace.mu.html#L185'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 4&quot;</span>
@@ -1605,11 +1605,11 @@ if ('onhashchange' in window) {
 <span id="L1540" class="LineNr">1540 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1541" class="LineNr">1541 </span>  <span class="muComment"># cursor remains unchanged</span>
 <span id="L1542" class="LineNr">1542 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 4   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-0&quot;</span>
-<span id="L1543" class="LineNr">1543 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-0/cursor&quot;</span>
+<span id="L1543" class="LineNr">1543 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-0/cursor&quot;</span>
 <span id="L1544" class="LineNr">1544 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 5   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-1&quot;</span>
-<span id="L1545" class="LineNr">1545 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-1/cursor&quot;</span>
+<span id="L1545" class="LineNr">1545 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-1/cursor&quot;</span>
 <span id="L1546" class="LineNr">1546 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-2&quot;</span>
-<span id="L1547" class="LineNr">1547 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-2/cursor&quot;</span>
+<span id="L1547" class="LineNr">1547 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1495'>test-trace-preserve-cursor-on-refresh</a>/refresh-2/cursor&quot;</span>
 <span id="L1548" class="LineNr">1548 </span><span class="Delimiter">}</span>
 <span id="L1549" class="LineNr">1549 </span>
 <span id="L1550" class="LineNr">1550 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a></span> <span class="Delimiter">{</span>
@@ -1623,50 +1623,50 @@ if ('onhashchange' in window) {
 <span id="L1558" class="LineNr">1558 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1559" class="LineNr">1559 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1560" class="LineNr">1560 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1561" class="LineNr">1561 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1561" class="LineNr">1561 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1562" class="LineNr">1562 </span>  <span class="muComment">#</span>
 <span id="L1563" class="LineNr">1563 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1564" class="LineNr">1564 </span>  <span class="muComment">#</span>
 <span id="L1565" class="LineNr">1565 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/pre-0&quot;</span>
-<span id="L1566" class="LineNr">1566 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/pre-0/cursor&quot;</span>
+<span id="L1566" class="LineNr">1566 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/pre-0/cursor&quot;</span>
 <span id="L1567" class="LineNr">1567 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/pre-1&quot;</span>
-<span id="L1568" class="LineNr">1568 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/pre-1/cursor&quot;</span>
+<span id="L1568" class="LineNr">1568 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/pre-1/cursor&quot;</span>
 <span id="L1569" class="LineNr">1569 </span>  <span class="muComment"># expand</span>
 <span id="L1570" class="LineNr">1570 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1571" class="LineNr">1571 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1572" class="LineNr">1572 </span>  <span class="muComment">#</span>
 <span id="L1573" class="LineNr">1573 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-0&quot;</span>
-<span id="L1574" class="LineNr">1574 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-0/cursor&quot;</span>
+<span id="L1574" class="LineNr">1574 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-0/cursor&quot;</span>
 <span id="L1575" class="LineNr">1575 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-1&quot;</span>
-<span id="L1576" class="LineNr">1576 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-1/cursor&quot;</span>
+<span id="L1576" class="LineNr">1576 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-1/cursor&quot;</span>
 <span id="L1577" class="LineNr">1577 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-2&quot;</span>
-<span id="L1578" class="LineNr">1578 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;              &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-2/cursor&quot;</span>
+<span id="L1578" class="LineNr">1578 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;              &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/expand-2/cursor&quot;</span>
 <span id="L1579" class="LineNr">1579 </span>  <span class="muComment"># cursor down</span>
 <span id="L1580" class="LineNr">1580 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1581" class="LineNr">1581 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1582" class="LineNr">1582 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1583" class="LineNr">1583 </span>  <span class="muComment">#</span>
 <span id="L1584" class="LineNr">1584 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-0&quot;</span>
-<span id="L1585" class="LineNr">1585 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-0/cursor&quot;</span>
+<span id="L1585" class="LineNr">1585 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-0/cursor&quot;</span>
 <span id="L1586" class="LineNr">1586 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-1&quot;</span>
-<span id="L1587" class="LineNr">1587 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-1/cursor&quot;</span>
+<span id="L1587" class="LineNr">1587 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-1/cursor&quot;</span>
 <span id="L1588" class="LineNr">1588 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-2&quot;</span>
-<span id="L1589" class="LineNr">1589 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-2/cursor&quot;</span>
+<span id="L1589" class="LineNr">1589 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/down-2/cursor&quot;</span>
 <span id="L1590" class="LineNr">1590 </span>  <span class="muComment"># recreate trace with entirely different lines</span>
 <span id="L1591" class="LineNr">1591 </span>  <a href='trace.mu.html#L80'>clear-trace</a> t
 <span id="L1592" class="LineNr">1592 </span>  <a href='trace.mu.html#L185'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 4&quot;</span>
 <span id="L1593" class="LineNr">1593 </span>  <a href='trace.mu.html#L185'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 5&quot;</span>
 <span id="L1594" class="LineNr">1594 </span>  <a href='trace.mu.html#L185'>trace-text</a> t, <span class="Constant">&quot;l&quot;</span>, <span class="Constant">&quot;line 6&quot;</span>
 <span id="L1595" class="LineNr">1595 </span>  <a href='trace.mu.html#L440'>mark-lines-dirty</a> t
-<span id="L1596" class="LineNr">1596 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1596" class="LineNr">1596 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1597" class="LineNr">1597 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1598" class="LineNr">1598 </span>  <span class="muComment"># trace collapses, and cursor bumps up</span>
 <span id="L1599" class="LineNr">1599 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-0&quot;</span>
-<span id="L1600" class="LineNr">1600 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-0/cursor&quot;</span>
+<span id="L1600" class="LineNr">1600 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-0/cursor&quot;</span>
 <span id="L1601" class="LineNr">1601 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-1&quot;</span>
-<span id="L1602" class="LineNr">1602 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-1/cursor&quot;</span>
+<span id="L1602" class="LineNr">1602 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-1/cursor&quot;</span>
 <span id="L1603" class="LineNr">1603 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-2&quot;</span>
-<span id="L1604" class="LineNr">1604 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-2/cursor&quot;</span>
+<span id="L1604" class="LineNr">1604 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1550'>test-trace-keep-cursor-visible-on-refresh</a>/refresh-2/cursor&quot;</span>
 <span id="L1605" class="LineNr">1605 </span><span class="Delimiter">}</span>
 <span id="L1606" class="LineNr">1606 </span>
 <span id="L1607" class="LineNr">1607 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a></span> <span class="Delimiter">{</span>
@@ -1682,35 +1682,35 @@ if ('onhashchange' in window) {
 <span id="L1617" class="LineNr">1617 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1618" class="LineNr">1618 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1619" class="LineNr">1619 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1620" class="LineNr">1620 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1620" class="LineNr">1620 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1621" class="LineNr">1621 </span>  <span class="muComment">#</span>
 <span id="L1622" class="LineNr">1622 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1623" class="LineNr">1623 </span>  <span class="muComment">#</span>
 <span id="L1624" class="LineNr">1624 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/pre-0&quot;</span>
-<span id="L1625" class="LineNr">1625 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/pre-0/cursor&quot;</span>
+<span id="L1625" class="LineNr">1625 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/pre-0/cursor&quot;</span>
 <span id="L1626" class="LineNr">1626 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/pre-1&quot;</span>
-<span id="L1627" class="LineNr">1627 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/pre-1/cursor&quot;</span>
+<span id="L1627" class="LineNr">1627 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/pre-1/cursor&quot;</span>
 <span id="L1628" class="LineNr">1628 </span>  <span class="muComment"># expand</span>
 <span id="L1629" class="LineNr">1629 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1630" class="LineNr">1630 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1631" class="LineNr">1631 </span>  <span class="muComment">#</span>
 <span id="L1632" class="LineNr">1632 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-0&quot;</span>
-<span id="L1633" class="LineNr">1633 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-0/cursor&quot;</span>
+<span id="L1633" class="LineNr">1633 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-0/cursor&quot;</span>
 <span id="L1634" class="LineNr">1634 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-1&quot;</span>
-<span id="L1635" class="LineNr">1635 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-1/cursor&quot;</span>
+<span id="L1635" class="LineNr">1635 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-1/cursor&quot;</span>
 <span id="L1636" class="LineNr">1636 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-2&quot;</span>
-<span id="L1637" class="LineNr">1637 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-2/cursor&quot;</span>
+<span id="L1637" class="LineNr">1637 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/expand-2/cursor&quot;</span>
 <span id="L1638" class="LineNr">1638 </span>  <span class="muComment"># collapse</span>
 <span id="L1639" class="LineNr">1639 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">8</span>/backspace
 <span id="L1640" class="LineNr">1640 </span>  <span class="muComment"># hack: we need to render here to make this test pass; we're mixing state management with rendering</span>
-<span id="L1641" class="LineNr">1641 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1641" class="LineNr">1641 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1642" class="LineNr">1642 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1643" class="LineNr">1643 </span>  <span class="muComment">#</span>
 <span id="L1644" class="LineNr">1644 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-0/y&quot;</span>
 <span id="L1645" class="LineNr">1645 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-0&quot;</span>
-<span id="L1646" class="LineNr">1646 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-0/cursor&quot;</span>
+<span id="L1646" class="LineNr">1646 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-0/cursor&quot;</span>
 <span id="L1647" class="LineNr">1647 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-1&quot;</span>
-<span id="L1648" class="LineNr">1648 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-1/cursor&quot;</span>
+<span id="L1648" class="LineNr">1648 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1607'>test-trace-collapse-at-top</a>/post-1/cursor&quot;</span>
 <span id="L1649" class="LineNr">1649 </span><span class="Delimiter">}</span>
 <span id="L1650" class="LineNr">1650 </span>
 <span id="L1651" class="LineNr">1651 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1651'>test-trace-collapse</a></span> <span class="Delimiter">{</span>
@@ -1723,35 +1723,35 @@ if ('onhashchange' in window) {
 <span id="L1658" class="LineNr">1658 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1659" class="LineNr">1659 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1660" class="LineNr">1660 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1661" class="LineNr">1661 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1661" class="LineNr">1661 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1662" class="LineNr">1662 </span>  <span class="muComment">#</span>
 <span id="L1663" class="LineNr">1663 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1664" class="LineNr">1664 </span>  <span class="muComment">#</span>
 <span id="L1665" class="LineNr">1665 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/pre-0&quot;</span>
-<span id="L1666" class="LineNr">1666 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/pre-0/cursor&quot;</span>
+<span id="L1666" class="LineNr">1666 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/pre-0/cursor&quot;</span>
 <span id="L1667" class="LineNr">1667 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/pre-1&quot;</span>
-<span id="L1668" class="LineNr">1668 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/pre-1/cursor&quot;</span>
+<span id="L1668" class="LineNr">1668 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/pre-1/cursor&quot;</span>
 <span id="L1669" class="LineNr">1669 </span>  <span class="muComment"># expand</span>
 <span id="L1670" class="LineNr">1670 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1671" class="LineNr">1671 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1672" class="LineNr">1672 </span>  <span class="muComment">#</span>
 <span id="L1673" class="LineNr">1673 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/expand-0&quot;</span>
-<span id="L1674" class="LineNr">1674 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/expand-0/cursor&quot;</span>
+<span id="L1674" class="LineNr">1674 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/expand-0/cursor&quot;</span>
 <span id="L1675" class="LineNr">1675 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/expand-1&quot;</span>
-<span id="L1676" class="LineNr">1676 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/expand-1/cursor&quot;</span>
+<span id="L1676" class="LineNr">1676 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/expand-1/cursor&quot;</span>
 <span id="L1677" class="LineNr">1677 </span>  <span class="muComment"># cursor down</span>
 <span id="L1678" class="LineNr">1678 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1679" class="LineNr">1679 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1680" class="LineNr">1680 </span>  <span class="muComment"># collapse</span>
 <span id="L1681" class="LineNr">1681 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">8</span>/backspace
-<span id="L1682" class="LineNr">1682 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1682" class="LineNr">1682 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1683" class="LineNr">1683 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1684" class="LineNr">1684 </span>  <span class="muComment">#</span>
 <span id="L1685" class="LineNr">1685 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-0/y&quot;</span>
 <span id="L1686" class="LineNr">1686 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-0&quot;</span>
-<span id="L1687" class="LineNr">1687 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-0/cursor&quot;</span>
+<span id="L1687" class="LineNr">1687 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-0/cursor&quot;</span>
 <span id="L1688" class="LineNr">1688 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-1&quot;</span>
-<span id="L1689" class="LineNr">1689 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-1/cursor&quot;</span>
+<span id="L1689" class="LineNr">1689 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1651'>test-trace-collapse</a>/post-1/cursor&quot;</span>
 <span id="L1690" class="LineNr">1690 </span><span class="Delimiter">}</span>
 <span id="L1691" class="LineNr">1691 </span>
 <span id="L1692" class="LineNr">1692 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a></span> <span class="Delimiter">{</span>
@@ -1767,24 +1767,24 @@ if ('onhashchange' in window) {
 <span id="L1702" class="LineNr">1702 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1703" class="LineNr">1703 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1704" class="LineNr">1704 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1705" class="LineNr">1705 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1705" class="LineNr">1705 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1706" class="LineNr">1706 </span>  <span class="muComment">#</span>
 <span id="L1707" class="LineNr">1707 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1708" class="LineNr">1708 </span>  <span class="muComment">#</span>
 <span id="L1709" class="LineNr">1709 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/pre-0&quot;</span>
-<span id="L1710" class="LineNr">1710 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/pre-0/cursor&quot;</span>
+<span id="L1710" class="LineNr">1710 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/pre-0/cursor&quot;</span>
 <span id="L1711" class="LineNr">1711 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/pre-1&quot;</span>
-<span id="L1712" class="LineNr">1712 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/pre-1/cursor&quot;</span>
+<span id="L1712" class="LineNr">1712 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/pre-1/cursor&quot;</span>
 <span id="L1713" class="LineNr">1713 </span>  <span class="muComment"># expand</span>
 <span id="L1714" class="LineNr">1714 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1715" class="LineNr">1715 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1716" class="LineNr">1716 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
 <span id="L1717" class="LineNr">1717 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-0&quot;</span>
-<span id="L1718" class="LineNr">1718 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-0/cursor&quot;</span>
+<span id="L1718" class="LineNr">1718 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-0/cursor&quot;</span>
 <span id="L1719" class="LineNr">1719 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-1&quot;</span>
-<span id="L1720" class="LineNr">1720 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-1/cursor&quot;</span>
+<span id="L1720" class="LineNr">1720 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-1/cursor&quot;</span>
 <span id="L1721" class="LineNr">1721 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-2&quot;</span>
-<span id="L1722" class="LineNr">1722 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-2/cursor&quot;</span>
+<span id="L1722" class="LineNr">1722 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/expand-2/cursor&quot;</span>
 <span id="L1723" class="LineNr">1723 </span>  <span class="muComment"># cursor down to second visible line</span>
 <span id="L1724" class="LineNr">1724 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1725" class="LineNr">1725 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
@@ -1792,16 +1792,16 @@ if ('onhashchange' in window) {
 <span id="L1727" class="LineNr">1727 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1728" class="LineNr">1728 </span>  <span class="muComment"># collapse</span>
 <span id="L1729" class="LineNr">1729 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">8</span>/backspace
-<span id="L1730" class="LineNr">1730 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1730" class="LineNr">1730 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1731" class="LineNr">1731 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1732" class="LineNr">1732 </span>  <span class="muComment">#</span>
 <span id="L1733" class="LineNr">1733 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-0/y&quot;</span>
 <span id="L1734" class="LineNr">1734 </span>  <span class="PreProc">var</span> cursor-y/eax: (addr int) <span class="Special">&lt;-</span> get t, cursor-y
 <span id="L1735" class="LineNr">1735 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *cursor-y, <span class="Constant">0</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-0/cursor-y&quot;</span>
 <span id="L1736" class="LineNr">1736 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-0&quot;</span>
-<span id="L1737" class="LineNr">1737 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-0/cursor&quot;</span>
+<span id="L1737" class="LineNr">1737 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-0/cursor&quot;</span>
 <span id="L1738" class="LineNr">1738 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-1&quot;</span>
-<span id="L1739" class="LineNr">1739 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-1/cursor&quot;</span>
+<span id="L1739" class="LineNr">1739 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1692'>test-trace-collapse-skips-invisible-lines</a>/post-1/cursor&quot;</span>
 <span id="L1740" class="LineNr">1740 </span><span class="Delimiter">}</span>
 <span id="L1741" class="LineNr">1741 </span>
 <span id="L1742" class="LineNr">1742 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a></span> <span class="Delimiter">{</span>
@@ -1817,24 +1817,24 @@ if ('onhashchange' in window) {
 <span id="L1752" class="LineNr">1752 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1753" class="LineNr">1753 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1754" class="LineNr">1754 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1755" class="LineNr">1755 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1755" class="LineNr">1755 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1756" class="LineNr">1756 </span>  <span class="muComment">#</span>
 <span id="L1757" class="LineNr">1757 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1758" class="LineNr">1758 </span>  <span class="muComment">#</span>
 <span id="L1759" class="LineNr">1759 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/pre-0&quot;</span>
-<span id="L1760" class="LineNr">1760 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/pre-0/cursor&quot;</span>
+<span id="L1760" class="LineNr">1760 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/pre-0/cursor&quot;</span>
 <span id="L1761" class="LineNr">1761 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/pre-1&quot;</span>
-<span id="L1762" class="LineNr">1762 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/pre-1/cursor&quot;</span>
+<span id="L1762" class="LineNr">1762 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/pre-1/cursor&quot;</span>
 <span id="L1763" class="LineNr">1763 </span>  <span class="muComment"># expand</span>
 <span id="L1764" class="LineNr">1764 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1765" class="LineNr">1765 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1766" class="LineNr">1766 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
 <span id="L1767" class="LineNr">1767 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-0&quot;</span>
-<span id="L1768" class="LineNr">1768 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-0/cursor&quot;</span>
+<span id="L1768" class="LineNr">1768 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-0/cursor&quot;</span>
 <span id="L1769" class="LineNr">1769 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-1&quot;</span>
-<span id="L1770" class="LineNr">1770 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-1/cursor&quot;</span>
+<span id="L1770" class="LineNr">1770 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-1/cursor&quot;</span>
 <span id="L1771" class="LineNr">1771 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-2&quot;</span>
-<span id="L1772" class="LineNr">1772 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-2/cursor&quot;</span>
+<span id="L1772" class="LineNr">1772 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand-2/cursor&quot;</span>
 <span id="L1773" class="LineNr">1773 </span>  <span class="muComment"># cursor down to ellipses</span>
 <span id="L1774" class="LineNr">1774 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1775" class="LineNr">1775 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
@@ -1843,26 +1843,26 @@ if ('onhashchange' in window) {
 <span id="L1778" class="LineNr">1778 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1779" class="LineNr">1779 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
 <span id="L1780" class="LineNr">1780 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-0&quot;</span>
-<span id="L1781" class="LineNr">1781 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-0/cursor&quot;</span>
+<span id="L1781" class="LineNr">1781 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-0/cursor&quot;</span>
 <span id="L1782" class="LineNr">1782 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;2 line 1.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-1&quot;</span>
-<span id="L1783" class="LineNr">1783 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-1/cursor&quot;</span>
+<span id="L1783" class="LineNr">1783 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-1/cursor&quot;</span>
 <span id="L1784" class="LineNr">1784 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-2&quot;</span>
-<span id="L1785" class="LineNr">1785 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-2/cursor&quot;</span>
+<span id="L1785" class="LineNr">1785 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/expand2-2/cursor&quot;</span>
 <span id="L1786" class="LineNr">1786 </span>  <span class="muComment"># cursor down to second visible line</span>
 <span id="L1787" class="LineNr">1787 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1788" class="LineNr">1788 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1789" class="LineNr">1789 </span>  <span class="muComment"># collapse</span>
 <span id="L1790" class="LineNr">1790 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">8</span>/backspace
-<span id="L1791" class="LineNr">1791 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1791" class="LineNr">1791 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1792" class="LineNr">1792 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1793" class="LineNr">1793 </span>  <span class="muComment">#</span>
 <span id="L1794" class="LineNr">1794 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">1</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-0/y&quot;</span>
 <span id="L1795" class="LineNr">1795 </span>  <span class="PreProc">var</span> cursor-y/eax: (addr int) <span class="Special">&lt;-</span> get t, cursor-y
 <span id="L1796" class="LineNr">1796 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *cursor-y, <span class="Constant">0</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-0/cursor-y&quot;</span>
 <span id="L1797" class="LineNr">1797 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-0&quot;</span>
-<span id="L1798" class="LineNr">1798 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-0/cursor&quot;</span>
+<span id="L1798" class="LineNr">1798 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-0/cursor&quot;</span>
 <span id="L1799" class="LineNr">1799 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-1&quot;</span>
-<span id="L1800" class="LineNr">1800 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-1/cursor&quot;</span>
+<span id="L1800" class="LineNr">1800 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1742'>test-trace-collapse-two-levels</a>/post-1/cursor&quot;</span>
 <span id="L1801" class="LineNr">1801 </span><span class="Delimiter">}</span>
 <span id="L1802" class="LineNr">1802 </span>
 <span id="L1803" class="LineNr">1803 </span><span class="PreProc">fn</span> <span class="muTest"><a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a></span> <span class="Delimiter">{</span>
@@ -1882,26 +1882,26 @@ if ('onhashchange' in window) {
 <span id="L1817" class="LineNr">1817 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1818" class="LineNr">1818 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1819" class="LineNr">1819 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1820" class="LineNr">1820 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">8</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1820" class="LineNr">1820 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">8</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1821" class="LineNr">1821 </span>  <span class="muComment">#</span>
 <span id="L1822" class="LineNr">1822 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1823" class="LineNr">1823 </span>  <span class="muComment">#</span>
 <span id="L1824" class="LineNr">1824 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/pre-0&quot;</span>
-<span id="L1825" class="LineNr">1825 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/pre-0/cursor&quot;</span>
+<span id="L1825" class="LineNr">1825 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/pre-0/cursor&quot;</span>
 <span id="L1826" class="LineNr">1826 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/pre-1&quot;</span>
-<span id="L1827" class="LineNr">1827 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/pre-1/cursor&quot;</span>
+<span id="L1827" class="LineNr">1827 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/pre-1/cursor&quot;</span>
 <span id="L1828" class="LineNr">1828 </span>  <span class="muComment"># expand</span>
 <span id="L1829" class="LineNr">1829 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
 <span id="L1830" class="LineNr">1830 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1831" class="LineNr">1831 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
 <span id="L1832" class="LineNr">1832 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-0&quot;</span>
-<span id="L1833" class="LineNr">1833 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-0/cursor&quot;</span>
+<span id="L1833" class="LineNr">1833 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-0/cursor&quot;</span>
 <span id="L1834" class="LineNr">1834 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-1&quot;</span>
-<span id="L1835" class="LineNr">1835 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-1/cursor&quot;</span>
+<span id="L1835" class="LineNr">1835 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-1/cursor&quot;</span>
 <span id="L1836" class="LineNr">1836 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-2&quot;</span>
-<span id="L1837" class="LineNr">1837 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-2/cursor&quot;</span>
+<span id="L1837" class="LineNr">1837 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-2/cursor&quot;</span>
 <span id="L1838" class="LineNr">1838 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-3&quot;</span>
-<span id="L1839" class="LineNr">1839 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-3/cursor&quot;</span>
+<span id="L1839" class="LineNr">1839 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand-3/cursor&quot;</span>
 <span id="L1840" class="LineNr">1840 </span>  <span class="muComment"># cursor down to bottom</span>
 <span id="L1841" class="LineNr">1841 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0x6a</span>/j
 <span id="L1842" class="LineNr">1842 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
@@ -1914,31 +1914,31 @@ if ('onhashchange' in window) {
 <span id="L1849" class="LineNr">1849 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1850" class="LineNr">1850 </span>  <span class="muComment"># two visible lines with an invisible line in between</span>
 <span id="L1851" class="LineNr">1851 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-0&quot;</span>
-<span id="L1852" class="LineNr">1852 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-0/cursor&quot;</span>
+<span id="L1852" class="LineNr">1852 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-0/cursor&quot;</span>
 <span id="L1853" class="LineNr">1853 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-1&quot;</span>
-<span id="L1854" class="LineNr">1854 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-1/cursor&quot;</span>
+<span id="L1854" class="LineNr">1854 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-1/cursor&quot;</span>
 <span id="L1855" class="LineNr">1855 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-2&quot;</span>
-<span id="L1856" class="LineNr">1856 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-2/cursor&quot;</span>
+<span id="L1856" class="LineNr">1856 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-2/cursor&quot;</span>
 <span id="L1857" class="LineNr">1857 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;2 line 2.1 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-3&quot;</span>
-<span id="L1858" class="LineNr">1858 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-3/cursor&quot;</span>
+<span id="L1858" class="LineNr">1858 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;|||||||||| &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-3/cursor&quot;</span>
 <span id="L1859" class="LineNr">1859 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">4</span>/y, <span class="Constant">&quot;2 line 2.2 &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-4&quot;</span>
-<span id="L1860" class="LineNr">1860 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-4/cursor&quot;</span>
+<span id="L1860" class="LineNr">1860 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">4</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/expand2-4/cursor&quot;</span>
 <span id="L1861" class="LineNr">1861 </span>  <span class="muComment"># collapse</span>
 <span id="L1862" class="LineNr">1862 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">8</span>/backspace
-<span id="L1863" class="LineNr">1863 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L1863" class="LineNr">1863 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1864" class="LineNr">1864 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">8</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1865" class="LineNr">1865 </span>  <span class="muComment">#</span>
 <span id="L1866" class="LineNr">1866 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> y, <span class="Constant">4</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-0/y&quot;</span>
 <span id="L1867" class="LineNr">1867 </span>  <span class="PreProc">var</span> cursor-y/eax: (addr int) <span class="Special">&lt;-</span> get t, cursor-y
 <span id="L1868" class="LineNr">1868 </span>  <a href='../502test.mu.html#L2'>check-ints-equal</a> *cursor-y, <span class="Constant">2</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-0/cursor-y&quot;</span>
 <span id="L1869" class="LineNr">1869 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-0&quot;</span>
-<span id="L1870" class="LineNr">1870 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-0/cursor&quot;</span>
+<span id="L1870" class="LineNr">1870 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-0/cursor&quot;</span>
 <span id="L1871" class="LineNr">1871 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-1&quot;</span>
-<span id="L1872" class="LineNr">1872 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-1/cursor&quot;</span>
+<span id="L1872" class="LineNr">1872 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-1/cursor&quot;</span>
 <span id="L1873" class="LineNr">1873 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-2&quot;</span>
-<span id="L1874" class="LineNr">1874 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-2/cursor&quot;</span>
+<span id="L1874" class="LineNr">1874 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-2/cursor&quot;</span>
 <span id="L1875" class="LineNr">1875 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-3&quot;</span>
-<span id="L1876" class="LineNr">1876 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-3/cursor&quot;</span>
+<span id="L1876" class="LineNr">1876 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1803'>test-trace-collapse-nested-level</a>/post-3/cursor&quot;</span>
 <span id="L1877" class="LineNr">1877 </span><span class="Delimiter">}</span>
 <span id="L1878" class="LineNr">1878 </span>
 <span id="L1879" class="LineNr">1879 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='trace.mu.html#L1879'>scroll-down</a></span> _self: (addr trace) <span class="Delimiter">{</span>
@@ -2056,106 +2056,106 @@ if ('onhashchange' in window) {
 <span id="L1991" class="LineNr">1991 </span>  <span class="muComment"># setup: screen</span>
 <span id="L1992" class="LineNr">1992 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L1993" class="LineNr">1993 </span>  <span class="PreProc">var</span> <a href='../500fake-screen.mu.html#L14'>screen</a>/<span class="muRegEdi">edi</span>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>) <span class="Special">&lt;-</span> address screen-on-stack
-<span id="L1994" class="LineNr">1994 </span>  <a href='../500fake-screen.mu.html#L33'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
+<span id="L1994" class="LineNr">1994 </span>  <a href='../500fake-screen.mu.html#L32'>initialize-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0x10</span>/width, <span class="Constant">4</span>/height, <span class="Constant">0</span>/no-pixel-graphics
 <span id="L1995" class="LineNr">1995 </span>  <span class="muComment"># pre-render</span>
 <span id="L1996" class="LineNr">1996 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L1997" class="LineNr">1997 </span>  <span class="muComment">#</span>
 <span id="L1998" class="LineNr">1998 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;...        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-0&quot;</span>
-<span id="L1999" class="LineNr">1999 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-0/cursor&quot;</span>
+<span id="L1999" class="LineNr">1999 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;|||        &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-0/cursor&quot;</span>
 <span id="L2000" class="LineNr">2000 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-1&quot;</span>
-<span id="L2001" class="LineNr">2001 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-1/cursor&quot;</span>
+<span id="L2001" class="LineNr">2001 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-1/cursor&quot;</span>
 <span id="L2002" class="LineNr">2002 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-2&quot;</span>
-<span id="L2003" class="LineNr">2003 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-2/cursor&quot;</span>
+<span id="L2003" class="LineNr">2003 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-2/cursor&quot;</span>
 <span id="L2004" class="LineNr">2004 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-3&quot;</span>
-<span id="L2005" class="LineNr">2005 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-3/cursor&quot;</span>
+<span id="L2005" class="LineNr">2005 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/pre-3/cursor&quot;</span>
 <span id="L2006" class="LineNr">2006 </span>  <span class="muComment"># expand</span>
 <span id="L2007" class="LineNr">2007 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">0xa</span>/enter
-<span id="L2008" class="LineNr">2008 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2008" class="LineNr">2008 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2009" class="LineNr">2009 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2010" class="LineNr">2010 </span>  <span class="muComment">#</span>
 <span id="L2011" class="LineNr">2011 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 0   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-0&quot;</span>
-<span id="L2012" class="LineNr">2012 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-0/cursor&quot;</span>
+<span id="L2012" class="LineNr">2012 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-0/cursor&quot;</span>
 <span id="L2013" class="LineNr">2013 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-1&quot;</span>
-<span id="L2014" class="LineNr">2014 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-1/cursor&quot;</span>
+<span id="L2014" class="LineNr">2014 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-1/cursor&quot;</span>
 <span id="L2015" class="LineNr">2015 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-2&quot;</span>
-<span id="L2016" class="LineNr">2016 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-2/cursor&quot;</span>
+<span id="L2016" class="LineNr">2016 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-2/cursor&quot;</span>
 <span id="L2017" class="LineNr">2017 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-3&quot;</span>
-<span id="L2018" class="LineNr">2018 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-3/cursor&quot;</span>
+<span id="L2018" class="LineNr">2018 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/expand-3/cursor&quot;</span>
 <span id="L2019" class="LineNr">2019 </span>  <span class="muComment"># scroll up</span>
 <span id="L2020" class="LineNr">2020 </span>  <span class="muComment"># hack: we must have rendered before this point; we're mixing state management with rendering</span>
 <span id="L2021" class="LineNr">2021 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">2</span>/ctrl-b
-<span id="L2022" class="LineNr">2022 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2022" class="LineNr">2022 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2023" class="LineNr">2023 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2024" class="LineNr">2024 </span>  <span class="muComment"># no change since we're already at the top</span>
 <span id="L2025" class="LineNr">2025 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 0   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-0&quot;</span>
-<span id="L2026" class="LineNr">2026 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-0/cursor&quot;</span>
+<span id="L2026" class="LineNr">2026 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-0/cursor&quot;</span>
 <span id="L2027" class="LineNr">2027 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-1&quot;</span>
-<span id="L2028" class="LineNr">2028 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-1/cursor&quot;</span>
+<span id="L2028" class="LineNr">2028 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-1/cursor&quot;</span>
 <span id="L2029" class="LineNr">2029 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-2&quot;</span>
-<span id="L2030" class="LineNr">2030 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-2/cursor&quot;</span>
+<span id="L2030" class="LineNr">2030 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-2/cursor&quot;</span>
 <span id="L2031" class="LineNr">2031 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-3&quot;</span>
-<span id="L2032" class="LineNr">2032 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-3/cursor&quot;</span>
+<span id="L2032" class="LineNr">2032 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up0-3/cursor&quot;</span>
 <span id="L2033" class="LineNr">2033 </span>  <span class="muComment"># scroll down</span>
 <span id="L2034" class="LineNr">2034 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">6</span>/ctrl-f
-<span id="L2035" class="LineNr">2035 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2035" class="LineNr">2035 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2036" class="LineNr">2036 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2037" class="LineNr">2037 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 4   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-0&quot;</span>
-<span id="L2038" class="LineNr">2038 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-0/cursor&quot;</span>
+<span id="L2038" class="LineNr">2038 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-0/cursor&quot;</span>
 <span id="L2039" class="LineNr">2039 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 5   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-1&quot;</span>
-<span id="L2040" class="LineNr">2040 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-1/cursor&quot;</span>
+<span id="L2040" class="LineNr">2040 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-1/cursor&quot;</span>
 <span id="L2041" class="LineNr">2041 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 6   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-2&quot;</span>
-<span id="L2042" class="LineNr">2042 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-2/cursor&quot;</span>
+<span id="L2042" class="LineNr">2042 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-2/cursor&quot;</span>
 <span id="L2043" class="LineNr">2043 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;1 line 7   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-3&quot;</span>
-<span id="L2044" class="LineNr">2044 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-3/cursor&quot;</span>
+<span id="L2044" class="LineNr">2044 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down1-3/cursor&quot;</span>
 <span id="L2045" class="LineNr">2045 </span>  <span class="muComment"># scroll down</span>
 <span id="L2046" class="LineNr">2046 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">6</span>/ctrl-f
-<span id="L2047" class="LineNr">2047 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2047" class="LineNr">2047 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2048" class="LineNr">2048 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2049" class="LineNr">2049 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 8   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-0&quot;</span>
-<span id="L2050" class="LineNr">2050 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-0/cursor&quot;</span>
+<span id="L2050" class="LineNr">2050 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-0/cursor&quot;</span>
 <span id="L2051" class="LineNr">2051 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 9   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-1&quot;</span>
-<span id="L2052" class="LineNr">2052 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-1/cursor&quot;</span>
+<span id="L2052" class="LineNr">2052 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-1/cursor&quot;</span>
 <span id="L2053" class="LineNr">2053 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-2&quot;</span>
-<span id="L2054" class="LineNr">2054 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-2/cursor&quot;</span>
+<span id="L2054" class="LineNr">2054 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-2/cursor&quot;</span>
 <span id="L2055" class="LineNr">2055 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-3&quot;</span>
-<span id="L2056" class="LineNr">2056 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-3/cursor&quot;</span>
+<span id="L2056" class="LineNr">2056 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down2-3/cursor&quot;</span>
 <span id="L2057" class="LineNr">2057 </span>  <span class="muComment"># scroll down</span>
 <span id="L2058" class="LineNr">2058 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">6</span>/ctrl-f
-<span id="L2059" class="LineNr">2059 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2059" class="LineNr">2059 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2060" class="LineNr">2060 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2061" class="LineNr">2061 </span>  <span class="muComment"># no change since we're already at the bottom</span>
 <span id="L2062" class="LineNr">2062 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 8   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-0&quot;</span>
-<span id="L2063" class="LineNr">2063 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-0/cursor&quot;</span>
+<span id="L2063" class="LineNr">2063 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-0/cursor&quot;</span>
 <span id="L2064" class="LineNr">2064 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 9   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-1&quot;</span>
-<span id="L2065" class="LineNr">2065 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-1/cursor&quot;</span>
+<span id="L2065" class="LineNr">2065 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-1/cursor&quot;</span>
 <span id="L2066" class="LineNr">2066 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-2&quot;</span>
-<span id="L2067" class="LineNr">2067 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-2/cursor&quot;</span>
+<span id="L2067" class="LineNr">2067 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-2/cursor&quot;</span>
 <span id="L2068" class="LineNr">2068 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-3&quot;</span>
-<span id="L2069" class="LineNr">2069 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-3/cursor&quot;</span>
+<span id="L2069" class="LineNr">2069 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/down3-3/cursor&quot;</span>
 <span id="L2070" class="LineNr">2070 </span>  <span class="muComment"># scroll up</span>
 <span id="L2071" class="LineNr">2071 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">2</span>/ctrl-b
-<span id="L2072" class="LineNr">2072 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2072" class="LineNr">2072 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2073" class="LineNr">2073 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2074" class="LineNr">2074 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 4   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-0&quot;</span>
-<span id="L2075" class="LineNr">2075 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-0/cursor&quot;</span>
+<span id="L2075" class="LineNr">2075 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-0/cursor&quot;</span>
 <span id="L2076" class="LineNr">2076 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 5   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-1&quot;</span>
-<span id="L2077" class="LineNr">2077 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-1/cursor&quot;</span>
+<span id="L2077" class="LineNr">2077 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-1/cursor&quot;</span>
 <span id="L2078" class="LineNr">2078 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 6   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-2&quot;</span>
-<span id="L2079" class="LineNr">2079 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-2/cursor&quot;</span>
+<span id="L2079" class="LineNr">2079 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-2/cursor&quot;</span>
 <span id="L2080" class="LineNr">2080 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;1 line 7   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-3&quot;</span>
-<span id="L2081" class="LineNr">2081 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-3/cursor&quot;</span>
+<span id="L2081" class="LineNr">2081 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up1-3/cursor&quot;</span>
 <span id="L2082" class="LineNr">2082 </span>  <span class="muComment"># scroll up</span>
 <span id="L2083" class="LineNr">2083 </span>  <a href='trace.mu.html#L907'>edit-trace</a> t, <span class="Constant">2</span>/ctrl-b
-<span id="L2084" class="LineNr">2084 </span>  <a href='../500fake-screen.mu.html#L251'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
+<span id="L2084" class="LineNr">2084 </span>  <a href='../500fake-screen.mu.html#L307'>clear-screen</a> <a href='../500fake-screen.mu.html#L14'>screen</a>
 <span id="L2085" class="LineNr">2085 </span>  <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> <a href='trace.mu.html#L452'>render-trace</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, t, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, <span class="Constant">0x10</span>/xmax, <span class="Constant">4</span>/ymax, <span class="Constant">1</span>/show-cursor
 <span id="L2086" class="LineNr">2086 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">0</span>/y, <span class="Constant">&quot;1 line 0   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-0&quot;</span>
-<span id="L2087" class="LineNr">2087 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-0/cursor&quot;</span>
+<span id="L2087" class="LineNr">2087 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">0</span>/y, <span class="Constant">&quot;||||||||   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-0/cursor&quot;</span>
 <span id="L2088" class="LineNr">2088 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">1</span>/y, <span class="Constant">&quot;1 line 1   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-1&quot;</span>
-<span id="L2089" class="LineNr">2089 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-1/cursor&quot;</span>
+<span id="L2089" class="LineNr">2089 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">1</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-1/cursor&quot;</span>
 <span id="L2090" class="LineNr">2090 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">2</span>/y, <span class="Constant">&quot;1 line 2   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-2&quot;</span>
-<span id="L2091" class="LineNr">2091 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-2/cursor&quot;</span>
+<span id="L2091" class="LineNr">2091 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">2</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-2/cursor&quot;</span>
 <span id="L2092" class="LineNr">2092 </span>  <a href='../504test-screen.mu.html#L7'>check-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>,                                  <span class="Constant">3</span>/y, <span class="Constant">&quot;1 line 3   &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-3&quot;</span>
-<span id="L2093" class="LineNr">2093 </span>  <a href='../504test-screen.mu.html#L257'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-3/cursor&quot;</span>
+<span id="L2093" class="LineNr">2093 </span>  <a href='../504test-screen.mu.html#L267'>check-background-color-in-screen-row</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">7</span>/bg=cursor, <span class="Constant">3</span>/y, <span class="Constant">&quot;           &quot;</span>, <span class="Constant">&quot;F - <a href='trace.mu.html#L1976'>test-trace-scroll</a>/up2-3/cursor&quot;</span>
 <span id="L2094" class="LineNr">2094 </span><span class="Delimiter">}</span>
 <span id="L2095" class="LineNr">2095 </span>
 <span id="L2096" class="LineNr">2096 </span><span class="muComment"># saving and restoring trace indices</span>