about summary refs log tree commit diff stats
path: root/html/baremetal
diff options
context:
space:
mode:
authorKartik Agaram <vc@akkartik.com>2021-02-13 18:18:05 -0800
committerKartik Agaram <vc@akkartik.com>2021-02-13 18:41:43 -0800
commit535fe9ac96dba0950efd1bfe6788801f6197971f (patch)
tree218270b512ce4175e3c7e3394d7b1a19ad84184b /html/baremetal
parent9b5ead67eca1b6e1afeeba63e9c68b2790c26436 (diff)
downloadmu-535fe9ac96dba0950efd1bfe6788801f6197971f.tar.gz
7737
Diffstat (limited to 'html/baremetal')
-rw-r--r--html/baremetal/103grapheme.subx.html313
-rw-r--r--html/baremetal/109stream-equal.subx.html1189
-rw-r--r--html/baremetal/112read-byte.subx.html174
-rw-r--r--html/baremetal/115write-byte.subx.html8
-rw-r--r--html/baremetal/117write-int-hex.subx.html4
-rw-r--r--html/baremetal/118parse-hex-int.subx.html960
-rw-r--r--html/baremetal/120allocate.subx.html18
-rw-r--r--html/baremetal/123slice.subx.html16
-rw-r--r--html/baremetal/126write-int-decimal.subx.html26
-rw-r--r--html/baremetal/301array-equal.subx.html496
-rw-r--r--html/baremetal/309stream.subx.html12
-rw-r--r--html/baremetal/310copy-bytes.subx.html219
-rw-r--r--html/baremetal/311decimal-int.subx.html209
-rw-r--r--html/baremetal/312copy.subx.html74
-rw-r--r--html/baremetal/313index-bounds-check.subx.html26
-rw-r--r--html/baremetal/314divide.subx.html77
-rw-r--r--html/baremetal/400.mu.html118
-rw-r--r--html/baremetal/403unicode.mu.html2
-rw-r--r--html/baremetal/408float.mu.html85
-rw-r--r--html/baremetal/411string.mu.html189
-rw-r--r--html/baremetal/412render-float-decimal.mu.html667
-rw-r--r--html/baremetal/500text-screen.mu.html486
-rw-r--r--html/baremetal/501draw-text.mu.html979
-rw-r--r--html/baremetal/502test.mu.html49
-rw-r--r--html/baremetal/504test-screen.mu.html277
-rw-r--r--html/baremetal/boot.hex.html799
-rw-r--r--html/baremetal/ex2.mu.html4
-rw-r--r--html/baremetal/ex3.mu.html6
-rw-r--r--html/baremetal/ex4.mu.html6
-rw-r--r--html/baremetal/ex5.mu.html4
-rw-r--r--html/baremetal/ex6.mu.html20
-rw-r--r--html/baremetal/ex7.mu.html61
-rw-r--r--html/baremetal/ex8.mu.html68
-rw-r--r--html/baremetal/life.mu.html318
-rw-r--r--html/baremetal/mu-init.subx.html6
-rw-r--r--html/baremetal/rpn.mu.html221
36 files changed, 5949 insertions, 2237 deletions
diff --git a/html/baremetal/103grapheme.subx.html b/html/baremetal/103grapheme.subx.html
index 1d159d1a..f7157766 100644
--- a/html/baremetal/103grapheme.subx.html
+++ b/html/baremetal/103grapheme.subx.html
@@ -69,162 +69,165 @@ if ('onhashchange' in window) {
 <span id="L12" class="LineNr"> 12 </span><span class="subxComment"># The Mu computer's screen is 1024px wide and 768px tall.</span>
 <span id="L13" class="LineNr"> 13 </span><span class="subxComment"># The Mu computer's font is 8px wide and 16px tall.</span>
 <span id="L14" class="LineNr"> 14 </span><span class="subxComment"># Therefore 'x' here is in [0, 128), and 'y' is in [0, 48)</span>
-<span id="L15" class="LineNr"> 15 </span><span class="subxFunction">draw-grapheme-on-real-screen</span>:  <span class="subxComment"># g: grapheme, x: int, y: int, color: int, background-color: int</span>
-<span id="L16" class="LineNr"> 16 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L17" class="LineNr"> 17 </span>    55/push-ebp
-<span id="L18" class="LineNr"> 18 </span>    89/&lt;- %ebp 4/r32/esp
-<span id="L19" class="LineNr"> 19 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L20" class="LineNr"> 20 </span>    50/push-eax
-<span id="L21" class="LineNr"> 21 </span>    51/push-ecx
-<span id="L22" class="LineNr"> 22 </span>    52/push-edx
-<span id="L23" class="LineNr"> 23 </span>    53/push-ebx
-<span id="L24" class="LineNr"> 24 </span>    56/push-esi
-<span id="L25" class="LineNr"> 25 </span>    <span class="subxComment"># var letter-bitmap/esi = font[g]</span>
-<span id="L26" class="LineNr"> 26 </span>    8b/-&gt; *(ebp+8) 6/r32/esi
-<span id="L27" class="LineNr"> 27 </span>    c1 4/subop/shift-left %esi 4/imm8
-<span id="L28" class="LineNr"> 28 </span>    8d/copy-address *(esi+0x8c00) 6/r32/esi  <span class="subxComment"># font-start</span>
-<span id="L29" class="LineNr"> 29 </span>    <span class="subxComment"># if (letter-bitmap &gt;= 0x9400) return  # characters beyond ASCII currently not supported</span>
-<span id="L30" class="LineNr"> 30 </span>    81 7/subop/compare %esi 0x9400/imm32
-<span id="L31" class="LineNr"> 31 </span>    7d/jump-if-&gt;= $draw-grapheme-on-real-screen:end/disp8
-<span id="L32" class="LineNr"> 32 </span>    <span class="subxComment"># var ycurr/edx: int = y*16</span>
-<span id="L33" class="LineNr"> 33 </span>    8b/-&gt; *(ebp+0x10) 2/r32/edx
-<span id="L34" class="LineNr"> 34 </span>    c1 4/subop/shift-left %edx 4/imm8
-<span id="L35" class="LineNr"> 35 </span>    <span class="subxComment"># var ymax/ebx: int = ycurr + 16</span>
-<span id="L36" class="LineNr"> 36 </span>    8b/-&gt; *(ebp+0x10) 3/r32/ebx
-<span id="L37" class="LineNr"> 37 </span>    c1 4/subop/shift-left %ebx 4/imm8
-<span id="L38" class="LineNr"> 38 </span>    81 0/subop/add %ebx 0x10/imm32
-<span id="L39" class="LineNr"> 39 </span>    {
-<span id="L40" class="LineNr"> 40 </span>      <span class="subxComment"># if (ycurr &gt;= ymax) break</span>
-<span id="L41" class="LineNr"> 41 </span>      39/compare %edx 3/r32/ebx
-<span id="L42" class="LineNr"> 42 </span>      7d/jump-if-&gt;= <span class="Constant">break</span>/disp8
-<span id="L43" class="LineNr"> 43 </span>      <span class="subxComment"># var xcurr/eax: int = x*8 + 7</span>
-<span id="L44" class="LineNr"> 44 </span>      8b/-&gt; *(ebp+0xc) 0/r32/eax  <span class="subxComment"># font-width - 1</span>
-<span id="L45" class="LineNr"> 45 </span>      c1 4/subop/shift-left %eax 3/imm8
-<span id="L46" class="LineNr"> 46 </span>      81 0/subop/add %eax 7/imm32
-<span id="L47" class="LineNr"> 47 </span>      <span class="subxComment"># var xmin/ecx: int = x*8</span>
-<span id="L48" class="LineNr"> 48 </span>      8b/-&gt; *(ebp+0xc) 1/r32/ecx
-<span id="L49" class="LineNr"> 49 </span>      c1 4/subop/shift-left %ecx 3/imm8
-<span id="L50" class="LineNr"> 50 </span>      <span class="subxComment"># var row-bitmap/ebx: int = *letter-bitmap</span>
-<span id="L51" class="LineNr"> 51 </span>      53/push-ebx
-<span id="L52" class="LineNr"> 52 </span>      8b/-&gt; *esi 3/r32/ebx
-<span id="L53" class="LineNr"> 53 </span>      {
-<span id="L54" class="LineNr"> 54 </span>        <span class="subxComment"># if (xcurr &lt; xmin) break</span>
-<span id="L55" class="LineNr"> 55 </span>        39/compare %eax 1/r32/ecx
-<span id="L56" class="LineNr"> 56 </span>        7c/jump-if-&lt; <span class="Constant">break</span>/disp8
-<span id="L57" class="LineNr"> 57 </span>        <span class="subxComment"># shift LSB from row-bitmap into carry flag (CF)</span>
-<span id="L58" class="LineNr"> 58 </span>        c1 5/subop/shift-right-logical %ebx 1/imm8
-<span id="L59" class="LineNr"> 59 </span>        <span class="subxComment"># if LSB, draw a pixel in the given color</span>
-<span id="L60" class="LineNr"> 60 </span>        {
-<span id="L61" class="LineNr"> 61 </span>          73/jump-if-not-CF <span class="Constant">break</span>/disp8
-<span id="L62" class="LineNr"> 62 </span>          (<a href='101screen.subx.html#L8'>pixel-on-real-screen</a> %eax %edx *(ebp+0x14))
-<span id="L63" class="LineNr"> 63 </span>          eb/jump $draw-grapheme-on-real-screen:continue/disp8
-<span id="L64" class="LineNr"> 64 </span>        }
-<span id="L65" class="LineNr"> 65 </span>        <span class="subxComment"># otherwise use the background color</span>
-<span id="L66" class="LineNr"> 66 </span>        (<a href='101screen.subx.html#L8'>pixel-on-real-screen</a> %eax %edx *(ebp+0x18))
-<span id="L67" class="LineNr"> 67 </span><span class="Constant">$draw-grapheme-on-real-screen:continue</span>:
-<span id="L68" class="LineNr"> 68 </span>        <span class="subxComment"># --x</span>
-<span id="L69" class="LineNr"> 69 </span>        48/decrement-eax
-<span id="L70" class="LineNr"> 70 </span>        <span class="subxComment">#</span>
-<span id="L71" class="LineNr"> 71 </span>        eb/jump <span class="Constant">loop</span>/disp8
-<span id="L72" class="LineNr"> 72 </span>      }
-<span id="L73" class="LineNr"> 73 </span>      <span class="subxComment"># reclaim row-bitmap</span>
-<span id="L74" class="LineNr"> 74 </span>      5b/pop-to-ebx
-<span id="L75" class="LineNr"> 75 </span>      <span class="subxComment"># ++y</span>
-<span id="L76" class="LineNr"> 76 </span>      42/increment-edx
-<span id="L77" class="LineNr"> 77 </span>      <span class="subxComment"># next bitmap row</span>
-<span id="L78" class="LineNr"> 78 </span>      46/increment-esi
-<span id="L79" class="LineNr"> 79 </span>      <span class="subxComment">#</span>
-<span id="L80" class="LineNr"> 80 </span>      eb/jump <span class="Constant">loop</span>/disp8
-<span id="L81" class="LineNr"> 81 </span>    }
-<span id="L82" class="LineNr"> 82 </span><span class="Constant">$draw-grapheme-on-real-screen:end</span>:
-<span id="L83" class="LineNr"> 83 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L84" class="LineNr"> 84 </span>    5e/pop-to-esi
-<span id="L85" class="LineNr"> 85 </span>    5b/pop-to-ebx
-<span id="L86" class="LineNr"> 86 </span>    5a/pop-to-edx
-<span id="L87" class="LineNr"> 87 </span>    59/pop-to-ecx
-<span id="L88" class="LineNr"> 88 </span>    58/pop-to-eax
-<span id="L89" class="LineNr"> 89 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L90" class="LineNr"> 90 </span>    89/&lt;- %esp 5/r32/ebp
-<span id="L91" class="LineNr"> 91 </span>    5d/pop-to-ebp
-<span id="L92" class="LineNr"> 92 </span>    c3/return
-<span id="L93" class="LineNr"> 93 </span>
-<span id="L94" class="LineNr"> 94 </span><span class="subxFunction">cursor-position-on-real-screen</span>:  <span class="subxComment"># -&gt; _/eax: int, _/ecx: int</span>
-<span id="L95" class="LineNr"> 95 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L96" class="LineNr"> 96 </span>    55/push-ebp
-<span id="L97" class="LineNr"> 97 </span>    89/&lt;- %ebp 4/r32/esp
-<span id="L98" class="LineNr"> 98 </span>    <span class="subxComment"># TODO: support fake screen; we currently assume 'screen' is always 0 (real)</span>
-<span id="L99" class="LineNr"> 99 </span>    8b/-&gt; *<span class="SpecialChar"><a href='103grapheme.subx.html#L167'>Real-screen-cursor-x</a></span> 0/r32/eax
-<span id="L100" class="LineNr">100 </span>    8b/-&gt; *<span class="SpecialChar"><a href='103grapheme.subx.html#L169'>Real-screen-cursor-y</a></span> 1/r32/ecx
-<span id="L101" class="LineNr">101 </span><span class="Constant">$cursor-position-on-real-screen:end</span>:
-<span id="L102" class="LineNr">102 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L103" class="LineNr">103 </span>    89/&lt;- %esp 5/r32/ebp
-<span id="L104" class="LineNr">104 </span>    5d/pop-to-ebp
-<span id="L105" class="LineNr">105 </span>    c3/return
-<span id="L106" class="LineNr">106 </span>
-<span id="L107" class="LineNr">107 </span><span class="subxFunction">set-cursor-position-on-real-screen</span>:  <span class="subxComment"># x: int, y: int</span>
-<span id="L108" class="LineNr">108 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L109" class="LineNr">109 </span>    55/push-ebp
-<span id="L110" class="LineNr">110 </span>    89/&lt;- %ebp 4/r32/esp
-<span id="L111" class="LineNr">111 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L112" class="LineNr">112 </span>    50/push-eax
-<span id="L113" class="LineNr">113 </span>    <span class="subxComment">#</span>
-<span id="L114" class="LineNr">114 </span>    8b/-&gt; *(ebp+8) 0/r32/eax
-<span id="L115" class="LineNr">115 </span>    89/&lt;- *<span class="SpecialChar"><a href='103grapheme.subx.html#L167'>Real-screen-cursor-x</a></span> 0/r32/eax
-<span id="L116" class="LineNr">116 </span>    8b/-&gt; *(ebp+0xc) 0/r32/eax
-<span id="L117" class="LineNr">117 </span>    89/&lt;- *<span class="SpecialChar"><a href='103grapheme.subx.html#L169'>Real-screen-cursor-y</a></span> 0/r32/eax
-<span id="L118" class="LineNr">118 </span><span class="Constant">$set-cursor-position-on-real-screen:end</span>:
-<span id="L119" class="LineNr">119 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L120" class="LineNr">120 </span>    58/pop-to-eax
-<span id="L121" class="LineNr">121 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L122" class="LineNr">122 </span>    89/&lt;- %esp 5/r32/ebp
-<span id="L123" class="LineNr">123 </span>    5d/pop-to-ebp
-<span id="L124" class="LineNr">124 </span>    c3/return
-<span id="L125" class="LineNr">125 </span>
-<span id="L126" class="LineNr">126 </span><span class="subxComment"># Draw cursor at current location. But this is rickety:</span>
-<span id="L127" class="LineNr">127 </span><span class="subxComment">#   - does not clear previous location cursor was shown at.</span>
-<span id="L128" class="LineNr">128 </span><span class="subxComment">#   - does not preserve what was at the cursor. Caller is responsible for</span>
-<span id="L129" class="LineNr">129 </span><span class="subxComment">#     tracking what was on the screen at this position before and passing it</span>
-<span id="L130" class="LineNr">130 </span><span class="subxComment">#     in again.</span>
-<span id="L131" class="LineNr">131 </span><span class="subxFunction">show-cursor-on-real-screen</span>:  <span class="subxComment"># g: grapheme</span>
-<span id="L132" class="LineNr">132 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L133" class="LineNr">133 </span>    55/push-ebp
-<span id="L134" class="LineNr">134 </span>    89/&lt;- %ebp 4/r32/esp
-<span id="L135" class="LineNr">135 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L136" class="LineNr">136 </span>    50/push-eax
-<span id="L137" class="LineNr">137 </span>    51/push-ecx
-<span id="L138" class="LineNr">138 </span>    <span class="subxComment">#</span>
-<span id="L139" class="LineNr">139 </span>    (<a href='103grapheme.subx.html#L94'>cursor-position-on-real-screen</a>)  <span class="subxComment"># =&gt; eax, ecx</span>
-<span id="L140" class="LineNr">140 </span>    (<a href='103grapheme.subx.html#L15'>draw-grapheme-on-real-screen</a> *(ebp+8) %eax %ecx 0 7)
-<span id="L141" class="LineNr">141 </span><span class="Constant">$show-cursor-on-real-screen:end</span>:
-<span id="L142" class="LineNr">142 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L143" class="LineNr">143 </span>    59/pop-to-ecx
-<span id="L144" class="LineNr">144 </span>    58/pop-to-eax
-<span id="L145" class="LineNr">145 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L146" class="LineNr">146 </span>    89/&lt;- %esp 5/r32/ebp
-<span id="L147" class="LineNr">147 </span>    5d/pop-to-ebp
-<span id="L148" class="LineNr">148 </span>    c3/return
-<span id="L149" class="LineNr">149 </span>
-<span id="L150" class="LineNr">150 </span>== data
-<span id="L151" class="LineNr">151 </span>
-<span id="L152" class="LineNr">152 </span><span class="subxComment"># The cursor is where certain Mu functions (usually of the form</span>
-<span id="L153" class="LineNr">153 </span><span class="subxComment"># 'draw*cursor*') print to by default.</span>
-<span id="L154" class="LineNr">154 </span><span class="subxComment">#</span>
-<span id="L155" class="LineNr">155 </span><span class="subxComment"># We don't bother displaying the cursor when drawing. It only becomes visible</span>
-<span id="L156" class="LineNr">156 </span><span class="subxComment"># on show-cursor, which is quite rickety (see above)</span>
+<span id="L15" class="LineNr"> 15 </span><span class="subxComment"># Doesn't update the cursor; where the cursor should go after printing the</span>
+<span id="L16" class="LineNr"> 16 </span><span class="subxComment"># current grapheme is a higher-level concern.</span>
+<span id="L17" class="LineNr"> 17 </span><span class="subxFunction">draw-grapheme-on-real-screen</span>:  <span class="subxComment"># g: grapheme, x: int, y: int, color: int, background-color: int</span>
+<span id="L18" class="LineNr"> 18 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L19" class="LineNr"> 19 </span>    55/push-ebp
+<span id="L20" class="LineNr"> 20 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L21" class="LineNr"> 21 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L22" class="LineNr"> 22 </span>    50/push-eax
+<span id="L23" class="LineNr"> 23 </span>    51/push-ecx
+<span id="L24" class="LineNr"> 24 </span>    52/push-edx
+<span id="L25" class="LineNr"> 25 </span>    53/push-ebx
+<span id="L26" class="LineNr"> 26 </span>    56/push-esi
+<span id="L27" class="LineNr"> 27 </span>    <span class="subxComment"># var letter-bitmap/esi = font[g]</span>
+<span id="L28" class="LineNr"> 28 </span>    8b/-&gt; *(ebp+8) 6/r32/esi
+<span id="L29" class="LineNr"> 29 </span>    c1 4/subop/shift-left %esi 4/imm8
+<span id="L30" class="LineNr"> 30 </span>    8d/copy-address *(esi+0x8c00) 6/r32/esi  <span class="subxComment"># font-start</span>
+<span id="L31" class="LineNr"> 31 </span>    <span class="subxComment"># if (letter-bitmap &gt;= 0x9400) return  # characters beyond ASCII currently not supported</span>
+<span id="L32" class="LineNr"> 32 </span>    81 7/subop/compare %esi 0x9400/imm32
+<span id="L33" class="LineNr"> 33 </span>    7d/jump-if-&gt;= $draw-grapheme-on-real-screen:end/disp8
+<span id="L34" class="LineNr"> 34 </span>    <span class="subxComment"># var ycurr/edx: int = y*16</span>
+<span id="L35" class="LineNr"> 35 </span>    8b/-&gt; *(ebp+0x10) 2/r32/edx
+<span id="L36" class="LineNr"> 36 </span>    c1 4/subop/shift-left %edx 4/imm8
+<span id="L37" class="LineNr"> 37 </span>    <span class="subxComment"># var ymax/ebx: int = ycurr + 16</span>
+<span id="L38" class="LineNr"> 38 </span>    8b/-&gt; *(ebp+0x10) 3/r32/ebx
+<span id="L39" class="LineNr"> 39 </span>    c1 4/subop/shift-left %ebx 4/imm8
+<span id="L40" class="LineNr"> 40 </span>    81 0/subop/add %ebx 0x10/imm32
+<span id="L41" class="LineNr"> 41 </span>    {
+<span id="L42" class="LineNr"> 42 </span>      <span class="subxComment"># if (ycurr &gt;= ymax) break</span>
+<span id="L43" class="LineNr"> 43 </span>      39/compare %edx 3/r32/ebx
+<span id="L44" class="LineNr"> 44 </span>      7d/jump-if-&gt;= <span class="Constant">break</span>/disp8
+<span id="L45" class="LineNr"> 45 </span>      <span class="subxComment"># var xcurr/eax: int = x*8 + 7</span>
+<span id="L46" class="LineNr"> 46 </span>      8b/-&gt; *(ebp+0xc) 0/r32/eax  <span class="subxComment"># font-width - 1</span>
+<span id="L47" class="LineNr"> 47 </span>      c1 4/subop/shift-left %eax 3/imm8
+<span id="L48" class="LineNr"> 48 </span>      81 0/subop/add %eax 7/imm32
+<span id="L49" class="LineNr"> 49 </span>      <span class="subxComment"># var xmin/ecx: int = x*8</span>
+<span id="L50" class="LineNr"> 50 </span>      8b/-&gt; *(ebp+0xc) 1/r32/ecx
+<span id="L51" class="LineNr"> 51 </span>      c1 4/subop/shift-left %ecx 3/imm8
+<span id="L52" class="LineNr"> 52 </span>      <span class="subxComment"># var row-bitmap/ebx: int = *letter-bitmap</span>
+<span id="L53" class="LineNr"> 53 </span>      53/push-ebx
+<span id="L54" class="LineNr"> 54 </span>      8b/-&gt; *esi 3/r32/ebx
+<span id="L55" class="LineNr"> 55 </span>      {
+<span id="L56" class="LineNr"> 56 </span>        <span class="subxComment"># if (xcurr &lt; xmin) break</span>
+<span id="L57" class="LineNr"> 57 </span>        39/compare %eax 1/r32/ecx
+<span id="L58" class="LineNr"> 58 </span>        7c/jump-if-&lt; <span class="Constant">break</span>/disp8
+<span id="L59" class="LineNr"> 59 </span>        <span class="subxComment"># shift LSB from row-bitmap into carry flag (CF)</span>
+<span id="L60" class="LineNr"> 60 </span>        c1 5/subop/shift-right-logical %ebx 1/imm8
+<span id="L61" class="LineNr"> 61 </span>        <span class="subxComment"># if LSB, draw a pixel in the given color</span>
+<span id="L62" class="LineNr"> 62 </span>        {
+<span id="L63" class="LineNr"> 63 </span>          73/jump-if-not-CF <span class="Constant">break</span>/disp8
+<span id="L64" class="LineNr"> 64 </span>          (<a href='101screen.subx.html#L8'>pixel-on-real-screen</a> %eax %edx *(ebp+0x14))
+<span id="L65" class="LineNr"> 65 </span>          eb/jump $draw-grapheme-on-real-screen:continue/disp8
+<span id="L66" class="LineNr"> 66 </span>        }
+<span id="L67" class="LineNr"> 67 </span>        <span class="subxComment"># otherwise use the background color</span>
+<span id="L68" class="LineNr"> 68 </span>        (<a href='101screen.subx.html#L8'>pixel-on-real-screen</a> %eax %edx *(ebp+0x18))
+<span id="L69" class="LineNr"> 69 </span><span class="Constant">$draw-grapheme-on-real-screen:continue</span>:
+<span id="L70" class="LineNr"> 70 </span>        <span class="subxComment"># --x</span>
+<span id="L71" class="LineNr"> 71 </span>        48/decrement-eax
+<span id="L72" class="LineNr"> 72 </span>        <span class="subxComment">#</span>
+<span id="L73" class="LineNr"> 73 </span>        eb/jump <span class="Constant">loop</span>/disp8
+<span id="L74" class="LineNr"> 74 </span>      }
+<span id="L75" class="LineNr"> 75 </span>      <span class="subxComment"># reclaim row-bitmap</span>
+<span id="L76" class="LineNr"> 76 </span>      5b/pop-to-ebx
+<span id="L77" class="LineNr"> 77 </span>      <span class="subxComment"># ++y</span>
+<span id="L78" class="LineNr"> 78 </span>      42/increment-edx
+<span id="L79" class="LineNr"> 79 </span>      <span class="subxComment"># next bitmap row</span>
+<span id="L80" class="LineNr"> 80 </span>      46/increment-esi
+<span id="L81" class="LineNr"> 81 </span>      <span class="subxComment">#</span>
+<span id="L82" class="LineNr"> 82 </span>      eb/jump <span class="Constant">loop</span>/disp8
+<span id="L83" class="LineNr"> 83 </span>    }
+<span id="L84" class="LineNr"> 84 </span><span class="Constant">$draw-grapheme-on-real-screen:end</span>:
+<span id="L85" class="LineNr"> 85 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L86" class="LineNr"> 86 </span>    5e/pop-to-esi
+<span id="L87" class="LineNr"> 87 </span>    5b/pop-to-ebx
+<span id="L88" class="LineNr"> 88 </span>    5a/pop-to-edx
+<span id="L89" class="LineNr"> 89 </span>    59/pop-to-ecx
+<span id="L90" class="LineNr"> 90 </span>    58/pop-to-eax
+<span id="L91" class="LineNr"> 91 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L92" class="LineNr"> 92 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L93" class="LineNr"> 93 </span>    5d/pop-to-ebp
+<span id="L94" class="LineNr"> 94 </span>    c3/return
+<span id="L95" class="LineNr"> 95 </span>
+<span id="L96" class="LineNr"> 96 </span><span class="subxFunction">cursor-position-on-real-screen</span>:  <span class="subxComment"># -&gt; _/eax: int, _/ecx: int</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L98" class="LineNr"> 98 </span>    55/push-ebp
+<span id="L99" class="LineNr"> 99 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L100" class="LineNr">100 </span>    <span class="subxComment"># TODO: support fake screen; we currently assume 'screen' is always 0 (real)</span>
+<span id="L101" class="LineNr">101 </span>    8b/-&gt; *<span class="SpecialChar"><a href='103grapheme.subx.html#L170'>Real-screen-cursor-x</a></span> 0/r32/eax
+<span id="L102" class="LineNr">102 </span>    8b/-&gt; *<span class="SpecialChar"><a href='103grapheme.subx.html#L172'>Real-screen-cursor-y</a></span> 1/r32/ecx
+<span id="L103" class="LineNr">103 </span><span class="Constant">$cursor-position-on-real-screen:end</span>:
+<span id="L104" class="LineNr">104 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L105" class="LineNr">105 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L106" class="LineNr">106 </span>    5d/pop-to-ebp
+<span id="L107" class="LineNr">107 </span>    c3/return
+<span id="L108" class="LineNr">108 </span>
+<span id="L109" class="LineNr">109 </span><span class="subxFunction">set-cursor-position-on-real-screen</span>:  <span class="subxComment"># x: int, y: int</span>
+<span id="L110" class="LineNr">110 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L111" class="LineNr">111 </span>    55/push-ebp
+<span id="L112" class="LineNr">112 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L113" class="LineNr">113 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L114" class="LineNr">114 </span>    50/push-eax
+<span id="L115" class="LineNr">115 </span>    <span class="subxComment">#</span>
+<span id="L116" class="LineNr">116 </span>    8b/-&gt; *(ebp+8) 0/r32/eax
+<span id="L117" class="LineNr">117 </span>    89/&lt;- *<span class="SpecialChar"><a href='103grapheme.subx.html#L170'>Real-screen-cursor-x</a></span> 0/r32/eax
+<span id="L118" class="LineNr">118 </span>    8b/-&gt; *(ebp+0xc) 0/r32/eax
+<span id="L119" class="LineNr">119 </span>    89/&lt;- *<span class="SpecialChar"><a href='103grapheme.subx.html#L172'>Real-screen-cursor-y</a></span> 0/r32/eax
+<span id="L120" class="LineNr">120 </span><span class="Constant">$set-cursor-position-on-real-screen:end</span>:
+<span id="L121" class="LineNr">121 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L122" class="LineNr">122 </span>    58/pop-to-eax
+<span id="L123" class="LineNr">123 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L124" class="LineNr">124 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L125" class="LineNr">125 </span>    5d/pop-to-ebp
+<span id="L126" class="LineNr">126 </span>    c3/return
+<span id="L127" class="LineNr">127 </span>
+<span id="L128" class="LineNr">128 </span><span class="subxComment"># Draw cursor at current location. But this is rickety:</span>
+<span id="L129" class="LineNr">129 </span><span class="subxComment">#   - does not clear previous location cursor was shown at.</span>
+<span id="L130" class="LineNr">130 </span><span class="subxComment">#   - does not preserve what was at the cursor. Caller is responsible for</span>
+<span id="L131" class="LineNr">131 </span><span class="subxComment">#     tracking what was on the screen at this position before and passing it</span>
+<span id="L132" class="LineNr">132 </span><span class="subxComment">#     in again.</span>
+<span id="L133" class="LineNr">133 </span><span class="subxComment">#   - does not stop showing the cursor at this location when the cursor moves</span>
+<span id="L134" class="LineNr">134 </span><span class="subxFunction">show-cursor-on-real-screen</span>:  <span class="subxComment"># g: grapheme</span>
+<span id="L135" class="LineNr">135 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L136" class="LineNr">136 </span>    55/push-ebp
+<span id="L137" class="LineNr">137 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L138" class="LineNr">138 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L139" class="LineNr">139 </span>    50/push-eax
+<span id="L140" class="LineNr">140 </span>    51/push-ecx
+<span id="L141" class="LineNr">141 </span>    <span class="subxComment">#</span>
+<span id="L142" class="LineNr">142 </span>    (<a href='103grapheme.subx.html#L96'>cursor-position-on-real-screen</a>)  <span class="subxComment"># =&gt; eax, ecx</span>
+<span id="L143" class="LineNr">143 </span>    (<a href='103grapheme.subx.html#L17'>draw-grapheme-on-real-screen</a> *(ebp+8) %eax %ecx 0 7)
+<span id="L144" class="LineNr">144 </span><span class="Constant">$show-cursor-on-real-screen:end</span>:
+<span id="L145" class="LineNr">145 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L146" class="LineNr">146 </span>    59/pop-to-ecx
+<span id="L147" class="LineNr">147 </span>    58/pop-to-eax
+<span id="L148" class="LineNr">148 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L149" class="LineNr">149 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L150" class="LineNr">150 </span>    5d/pop-to-ebp
+<span id="L151" class="LineNr">151 </span>    c3/return
+<span id="L152" class="LineNr">152 </span>
+<span id="L153" class="LineNr">153 </span>== data
+<span id="L154" class="LineNr">154 </span>
+<span id="L155" class="LineNr">155 </span><span class="subxComment"># The cursor is where certain Mu functions (usually of the form</span>
+<span id="L156" class="LineNr">156 </span><span class="subxComment"># 'draw*cursor*') print to by default.</span>
 <span id="L157" class="LineNr">157 </span><span class="subxComment">#</span>
-<span id="L158" class="LineNr">158 </span><span class="subxComment"># It's up to applications to manage cursor display:</span>
-<span id="L159" class="LineNr">159 </span><span class="subxComment">#   - clean up where it used to be</span>
-<span id="L160" class="LineNr">160 </span><span class="subxComment">#   - display the cursor before waiting for a key</span>
-<span id="L161" class="LineNr">161 </span><span class="subxComment">#   - ensure its location appropriately suggests the effect keystrokes will have</span>
-<span id="L162" class="LineNr">162 </span><span class="subxComment">#   - ensure its contents (and colors) appropriately reflect the state of the</span>
-<span id="L163" class="LineNr">163 </span><span class="subxComment">#     screen</span>
-<span id="L164" class="LineNr">164 </span><span class="subxComment">#</span>
-<span id="L165" class="LineNr">165 </span><span class="subxComment"># There's no blinking, etc. We aren't using any hardware-supported text mode</span>
-<span id="L166" class="LineNr">166 </span><span class="subxComment"># here.</span>
-<span id="L167" class="LineNr">167 </span><span class="SpecialChar">Real-screen-cursor-x</span>:
-<span id="L168" class="LineNr">168 </span>  0/imm32
-<span id="L169" class="LineNr">169 </span><span class="SpecialChar">Real-screen-cursor-y</span>:
-<span id="L170" class="LineNr">170 </span>  0/imm32
+<span id="L158" class="LineNr">158 </span><span class="subxComment"># We don't bother displaying the cursor when drawing. It only becomes visible</span>
+<span id="L159" class="LineNr">159 </span><span class="subxComment"># on show-cursor, which is quite rickety (see above)</span>
+<span id="L160" class="LineNr">160 </span><span class="subxComment">#</span>
+<span id="L161" class="LineNr">161 </span><span class="subxComment"># It's up to applications to manage cursor display:</span>
+<span id="L162" class="LineNr">162 </span><span class="subxComment">#   - clean up where it used to be</span>
+<span id="L163" class="LineNr">163 </span><span class="subxComment">#   - display the cursor before waiting for a key</span>
+<span id="L164" class="LineNr">164 </span><span class="subxComment">#   - ensure its location appropriately suggests the effect keystrokes will have</span>
+<span id="L165" class="LineNr">165 </span><span class="subxComment">#   - ensure its contents (and colors) appropriately reflect the state of the</span>
+<span id="L166" class="LineNr">166 </span><span class="subxComment">#     screen</span>
+<span id="L167" class="LineNr">167 </span><span class="subxComment">#</span>
+<span id="L168" class="LineNr">168 </span><span class="subxComment"># There's no blinking, etc. We aren't using any hardware-supported text mode</span>
+<span id="L169" class="LineNr">169 </span><span class="subxComment"># here.</span>
+<span id="L170" class="LineNr">170 </span><span class="SpecialChar">Real-screen-cursor-x</span>:
+<span id="L171" class="LineNr">171 </span>  0/imm32
+<span id="L172" class="LineNr">172 </span><span class="SpecialChar">Real-screen-cursor-y</span>:
+<span id="L173" class="LineNr">173 </span>  0/imm32
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/109stream-equal.subx.html b/html/baremetal/109stream-equal.subx.html
index 91702ebc..c77c609b 100644
--- a/html/baremetal/109stream-equal.subx.html
+++ b/html/baremetal/109stream-equal.subx.html
@@ -58,603 +58,600 @@ if ('onhashchange' in window) {
 <a href='https://github.com/akkartik/mu/blob/main/baremetal/109stream-equal.subx'>https://github.com/akkartik/mu/blob/main/baremetal/109stream-equal.subx</a>
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="subxComment"># some primitives for checking stream contents</span>
-<span id="L2" class="LineNr">  2 </span><span class="subxComment">#</span>
-<span id="L3" class="LineNr">  3 </span><span class="subxComment"># We need to do this in machine code because streams need to be opaque types,</span>
-<span id="L4" class="LineNr">  4 </span><span class="subxComment"># and we don't yet support opaque types in Mu.</span>
-<span id="L5" class="LineNr">  5 </span>
-<span id="L6" class="LineNr">  6 </span>== code
-<span id="L7" class="LineNr">  7 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
-<span id="L8" class="LineNr">  8 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
-<span id="L9" class="LineNr">  9 </span><span class="subxS1Comment"># . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
-<span id="L10" class="LineNr"> 10 </span>
-<span id="L11" class="LineNr"> 11 </span><span class="subxComment"># compare all the data in a stream (ignoring the read pointer)</span>
-<span id="L12" class="LineNr"> 12 </span><span class="subxFunction">stream-data-equal?</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte) -&gt; result/eax: boolean</span>
-<span id="L13" class="LineNr"> 13 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L14" class="LineNr"> 14 </span>    55/push-ebp
-<span id="L15" class="LineNr"> 15 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L16" class="LineNr"> 16 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L17" class="LineNr"> 17 </span>    51/push-ecx
-<span id="L18" class="LineNr"> 18 </span>    52/push-edx
-<span id="L19" class="LineNr"> 19 </span>    56/push-esi
-<span id="L20" class="LineNr"> 20 </span>    57/push-edi
-<span id="L21" class="LineNr"> 21 </span>    <span class="subxComment"># esi = f</span>
-<span id="L22" class="LineNr"> 22 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to esi</span>
-<span id="L23" class="LineNr"> 23 </span>    <span class="subxComment"># eax = f-&gt;write</span>
-<span id="L24" class="LineNr"> 24 </span>    8b/copy                         0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *esi to eax</span>
-<span id="L25" class="LineNr"> 25 </span>    <span class="subxComment"># var maxf/edx: (addr byte) = &amp;f-&gt;data[f-&gt;write]</span>
-<span id="L26" class="LineNr"> 26 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/esi  0/index/eax  <span class="Normal"> . </span>          2/r32/edx   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy esi+eax+12 to edx</span>
-<span id="L27" class="LineNr"> 27 </span>    <span class="subxComment"># var currf/esi: (addr byte) = f-&gt;data</span>
-<span id="L28" class="LineNr"> 28 </span>    81          0/subop/add         3/mod/direct    6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esi</span>
-<span id="L29" class="LineNr"> 29 </span>    <span class="subxComment"># edi = s</span>
-<span id="L30" class="LineNr"> 30 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          7/r32/edi   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to edi</span>
-<span id="L31" class="LineNr"> 31 </span><span class="Constant">$stream-data-equal?:compare-sizes</span>:
-<span id="L32" class="LineNr"> 32 </span>    <span class="subxComment"># if (f-&gt;write != s-&gt;size) return false</span>
-<span id="L33" class="LineNr"> 33 </span>    39/compare                      0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare *edi and eax</span>
-<span id="L34" class="LineNr"> 34 </span>    75/jump-if-!=  $stream-data-equal?:false/disp8
-<span id="L35" class="LineNr"> 35 </span>    <span class="subxComment"># var currs/edi: (addr byte) = s-&gt;data</span>
-<span id="L36" class="LineNr"> 36 </span>    81          0/subop/add         3/mod/direct    7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to edi</span>
-<span id="L37" class="LineNr"> 37 </span>    <span class="subxComment"># var eax: byte = 0</span>
-<span id="L38" class="LineNr"> 38 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
-<span id="L39" class="LineNr"> 39 </span>    <span class="subxComment"># var ecx: byte = 0</span>
-<span id="L40" class="LineNr"> 40 </span>    31/xor                          3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ecx</span>
-<span id="L41" class="LineNr"> 41 </span><span class="Constant">$stream-data-equal?:loop</span>:
-<span id="L42" class="LineNr"> 42 </span>    <span class="subxComment"># if (currf &gt;= maxf) return true</span>
-<span id="L43" class="LineNr"> 43 </span>    39/compare                      3/mod/direct    6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare esi with edx</span>
-<span id="L44" class="LineNr"> 44 </span>    73/jump-if-addr&gt;=  $stream-data-equal?:true/disp8
-<span id="L45" class="LineNr"> 45 </span>    <span class="subxComment"># AL = *currs</span>
-<span id="L46" class="LineNr"> 46 </span>    8a/copy-byte                    0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *esi to AL</span>
-<span id="L47" class="LineNr"> 47 </span>    <span class="subxComment"># CL = *curr</span>
-<span id="L48" class="LineNr"> 48 </span>    8a/copy-byte                    0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/CL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *edi to CL</span>
-<span id="L49" class="LineNr"> 49 </span>    <span class="subxComment"># if (eax != ecx) return false</span>
-<span id="L50" class="LineNr"> 50 </span>    39/compare                      3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare eax and ecx</span>
-<span id="L51" class="LineNr"> 51 </span>    75/jump-if-!=  $stream-data-equal?:false/disp8
-<span id="L52" class="LineNr"> 52 </span>    <span class="subxComment"># ++f</span>
-<span id="L53" class="LineNr"> 53 </span>    46/increment-esi
-<span id="L54" class="LineNr"> 54 </span>    <span class="subxComment"># ++curr</span>
-<span id="L55" class="LineNr"> 55 </span>    47/increment-edi
-<span id="L56" class="LineNr"> 56 </span>    eb/jump $stream-data-equal?:<span class="Constant">loop</span>/disp8
-<span id="L57" class="LineNr"> 57 </span><span class="Constant">$stream-data-equal?:false</span>:
-<span id="L58" class="LineNr"> 58 </span>    b8/copy-to-eax  0/imm32
-<span id="L59" class="LineNr"> 59 </span>    eb/jump  $stream-data-equal?:end/disp8
-<span id="L60" class="LineNr"> 60 </span><span class="Constant">$stream-data-equal?:true</span>:
-<span id="L61" class="LineNr"> 61 </span>    b8/copy-to-eax  1/imm32
-<span id="L62" class="LineNr"> 62 </span><span class="Constant">$stream-data-equal?:end</span>:
-<span id="L63" class="LineNr"> 63 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L64" class="LineNr"> 64 </span>    5f/pop-to-edi
-<span id="L65" class="LineNr"> 65 </span>    5e/pop-to-esi
-<span id="L66" class="LineNr"> 66 </span>    5a/pop-to-edx
-<span id="L67" class="LineNr"> 67 </span>    59/pop-to-ecx
-<span id="L68" class="LineNr"> 68 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L69" class="LineNr"> 69 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L70" class="LineNr"> 70 </span>    5d/pop-to-ebp
-<span id="L71" class="LineNr"> 71 </span>    c3/return
-<span id="L72" class="LineNr"> 72 </span>
-<span id="L73" class="LineNr"> 73 </span><span class="subxTest">test-stream-data-equal</span>:
-<span id="L74" class="LineNr"> 74 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L75" class="LineNr"> 75 </span>    55/push-ebp
-<span id="L76" class="LineNr"> 76 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L77" class="LineNr"> 77 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L78" class="LineNr"> 78 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L79" class="LineNr"> 79 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L80" class="LineNr"> 80 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L81" class="LineNr"> 81 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L82" class="LineNr"> 82 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L83" class="LineNr"> 83 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L84" class="LineNr"> 84 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc&quot;)</span>
-<span id="L85" class="LineNr"> 85 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L86" class="LineNr"> 86 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L87" class="LineNr"> 87 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L88" class="LineNr"> 88 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L89" class="LineNr"> 89 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L90" class="LineNr"> 90 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L91" class="LineNr"> 91 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L92" class="LineNr"> 92 </span>    <span class="subxComment"># eax = stream-data-equal?(_test-stream, &quot;Abc&quot;)</span>
-<span id="L93" class="LineNr"> 93 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L94" class="LineNr"> 94 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L95" class="LineNr"> 95 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L96" class="LineNr"> 96 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L97" class="LineNr"> 97 </span>    e8/call  <a href='109stream-equal.subx.html#L12'>stream-data-equal?</a>/disp32
-<span id="L98" class="LineNr"> 98 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L99" class="LineNr"> 99 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L100" class="LineNr">100 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
-<span id="L101" class="LineNr">101 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L102" class="LineNr">102 </span>    68/push  <span class="Constant">&quot;F - test-stream-data-equal&quot;</span>/imm32
-<span id="L103" class="LineNr">103 </span>    68/push  1/imm32
-<span id="L104" class="LineNr">104 </span>    50/push-eax
-<span id="L105" class="LineNr">105 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L106" class="LineNr">106 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L107" class="LineNr">107 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L108" class="LineNr">108 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L109" class="LineNr">109 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L110" class="LineNr">110 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L111" class="LineNr">111 </span>    5d/pop-to-ebp
-<span id="L112" class="LineNr">112 </span>    c3/return
-<span id="L113" class="LineNr">113 </span>
-<span id="L114" class="LineNr">114 </span><span class="subxTest">test-stream-data-equal-2</span>:
-<span id="L115" class="LineNr">115 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L116" class="LineNr">116 </span>    55/push-ebp
-<span id="L117" class="LineNr">117 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L118" class="LineNr">118 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L119" class="LineNr">119 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L120" class="LineNr">120 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L121" class="LineNr">121 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L122" class="LineNr">122 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L123" class="LineNr">123 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L124" class="LineNr">124 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L125" class="LineNr">125 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc&quot;)</span>
-<span id="L126" class="LineNr">126 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L127" class="LineNr">127 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L128" class="LineNr">128 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L129" class="LineNr">129 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L130" class="LineNr">130 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L131" class="LineNr">131 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L132" class="LineNr">132 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L133" class="LineNr">133 </span>    <span class="subxComment"># eax = stream-data-equal?(_test-stream, &quot;Abd&quot;)</span>
-<span id="L134" class="LineNr">134 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L135" class="LineNr">135 </span>    68/push  <span class="Constant">&quot;Abd&quot;</span>/imm32
-<span id="L136" class="LineNr">136 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L137" class="LineNr">137 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L138" class="LineNr">138 </span>    e8/call  <a href='109stream-equal.subx.html#L12'>stream-data-equal?</a>/disp32
-<span id="L139" class="LineNr">139 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L140" class="LineNr">140 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L141" class="LineNr">141 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
-<span id="L142" class="LineNr">142 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L143" class="LineNr">143 </span>    68/push  <span class="Constant">&quot;F - test-stream-data-equal-2&quot;</span>/imm32
-<span id="L144" class="LineNr">144 </span>    68/push  0/imm32
-<span id="L145" class="LineNr">145 </span>    50/push-eax
-<span id="L146" class="LineNr">146 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L147" class="LineNr">147 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L148" class="LineNr">148 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L149" class="LineNr">149 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L150" class="LineNr">150 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L151" class="LineNr">151 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L152" class="LineNr">152 </span>    5d/pop-to-ebp
-<span id="L153" class="LineNr">153 </span>    c3/return
-<span id="L154" class="LineNr">154 </span>
-<span id="L155" class="LineNr">155 </span><span class="subxTest">test-stream-data-equal-size-check</span>:
-<span id="L156" class="LineNr">156 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L157" class="LineNr">157 </span>    55/push-ebp
-<span id="L158" class="LineNr">158 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L159" class="LineNr">159 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L160" class="LineNr">160 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L161" class="LineNr">161 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L162" class="LineNr">162 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L163" class="LineNr">163 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L164" class="LineNr">164 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L165" class="LineNr">165 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L166" class="LineNr">166 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc&quot;)</span>
-<span id="L167" class="LineNr">167 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L168" class="LineNr">168 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L169" class="LineNr">169 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L170" class="LineNr">170 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L171" class="LineNr">171 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L172" class="LineNr">172 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L173" class="LineNr">173 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L174" class="LineNr">174 </span>    <span class="subxComment"># eax = stream-data-equal?(_test-stream, &quot;Abcd&quot;)</span>
-<span id="L175" class="LineNr">175 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L176" class="LineNr">176 </span>    68/push  <span class="Constant">&quot;Abcd&quot;</span>/imm32
-<span id="L177" class="LineNr">177 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L178" class="LineNr">178 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L179" class="LineNr">179 </span>    e8/call  <a href='109stream-equal.subx.html#L12'>stream-data-equal?</a>/disp32
-<span id="L180" class="LineNr">180 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L181" class="LineNr">181 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L182" class="LineNr">182 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
-<span id="L183" class="LineNr">183 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L184" class="LineNr">184 </span>    68/push  <span class="Constant">&quot;F - test-stream-data-equal-size-check&quot;</span>/imm32
-<span id="L185" class="LineNr">185 </span>    68/push  0/imm32
-<span id="L186" class="LineNr">186 </span>    50/push-eax
-<span id="L187" class="LineNr">187 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L188" class="LineNr">188 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L189" class="LineNr">189 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L190" class="LineNr">190 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L191" class="LineNr">191 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L192" class="LineNr">192 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L193" class="LineNr">193 </span>    5d/pop-to-ebp
-<span id="L194" class="LineNr">194 </span>    c3/return
-<span id="L195" class="LineNr">195 </span>
-<span id="L196" class="LineNr">196 </span><span class="subxComment"># helper for later tests</span>
-<span id="L197" class="LineNr">197 </span><span class="subxFunction">check-stream-equal</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte), msg: (addr array byte)</span>
-<span id="L198" class="LineNr">198 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L199" class="LineNr">199 </span>    55/push-ebp
-<span id="L200" class="LineNr">200 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L201" class="LineNr">201 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L202" class="LineNr">202 </span>    50/push-eax
-<span id="L203" class="LineNr">203 </span>    <span class="subxComment"># eax = stream-data-equal?(f, s)</span>
-<span id="L204" class="LineNr">204 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L205" class="LineNr">205 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
-<span id="L206" class="LineNr">206 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+8)</span>
-<span id="L207" class="LineNr">207 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L208" class="LineNr">208 </span>    e8/call  <a href='109stream-equal.subx.html#L12'>stream-data-equal?</a>/disp32
-<span id="L209" class="LineNr">209 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L210" class="LineNr">210 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L211" class="LineNr">211 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
-<span id="L212" class="LineNr">212 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L213" class="LineNr">213 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0x10/disp8     <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+16)</span>
-<span id="L214" class="LineNr">214 </span>    68/push  1/imm32
-<span id="L215" class="LineNr">215 </span>    50/push-eax
-<span id="L216" class="LineNr">216 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L217" class="LineNr">217 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L218" class="LineNr">218 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L219" class="LineNr">219 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L220" class="LineNr">220 </span><span class="Constant">$check-stream-equal:end</span>:
-<span id="L221" class="LineNr">221 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L222" class="LineNr">222 </span>    58/pop-to-eax
-<span id="L223" class="LineNr">223 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L224" class="LineNr">224 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L225" class="LineNr">225 </span>    5d/pop-to-ebp
-<span id="L226" class="LineNr">226 </span>    c3/return
-<span id="L227" class="LineNr">227 </span>
-<span id="L228" class="LineNr">228 </span><span class="subxComment"># scan the next line until newline starting from f-&gt;read and compare it with</span>
-<span id="L229" class="LineNr">229 </span><span class="subxComment"># 's' (ignoring the trailing newline)</span>
-<span id="L230" class="LineNr">230 </span><span class="subxComment"># on success, set f-&gt;read to after the next newline</span>
-<span id="L231" class="LineNr">231 </span><span class="subxComment"># on failure, leave f-&gt;read unmodified</span>
-<span id="L232" class="LineNr">232 </span><span class="subxComment"># this function is usually used only in tests, so we repeatedly write f-&gt;read</span>
-<span id="L233" class="LineNr">233 </span><span class="subxFunction">next-stream-line-equal?</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte) -&gt; result/eax: boolean</span>
-<span id="L234" class="LineNr">234 </span>    <span class="subxComment"># pseudocode:</span>
-<span id="L235" class="LineNr">235 </span>    <span class="subxComment">#   currf = f-&gt;read  # bound: f-&gt;write</span>
-<span id="L236" class="LineNr">236 </span>    <span class="subxComment">#   currs = 0  # bound: s-&gt;size</span>
-<span id="L237" class="LineNr">237 </span>    <span class="subxComment">#   while true</span>
-<span id="L238" class="LineNr">238 </span>    <span class="subxComment">#     if currf &gt;= f-&gt;write</span>
+<span id="L2" class="LineNr">  2 </span>
+<span id="L3" class="LineNr">  3 </span>== code
+<span id="L4" class="LineNr">  4 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
+<span id="L5" class="LineNr">  5 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L6" class="LineNr">  6 </span><span class="subxS1Comment"># . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
+<span id="L7" class="LineNr">  7 </span>
+<span id="L8" class="LineNr">  8 </span><span class="subxComment"># compare all the data in a stream (ignoring the read pointer)</span>
+<span id="L9" class="LineNr">  9 </span><span class="subxFunction">stream-data-equal?</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte) -&gt; result/eax: boolean</span>
+<span id="L10" class="LineNr"> 10 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L11" class="LineNr"> 11 </span>    55/push-ebp
+<span id="L12" class="LineNr"> 12 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L13" class="LineNr"> 13 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L14" class="LineNr"> 14 </span>    51/push-ecx
+<span id="L15" class="LineNr"> 15 </span>    52/push-edx
+<span id="L16" class="LineNr"> 16 </span>    56/push-esi
+<span id="L17" class="LineNr"> 17 </span>    57/push-edi
+<span id="L18" class="LineNr"> 18 </span>    <span class="subxComment"># esi = f</span>
+<span id="L19" class="LineNr"> 19 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to esi</span>
+<span id="L20" class="LineNr"> 20 </span>    <span class="subxComment"># eax = f-&gt;write</span>
+<span id="L21" class="LineNr"> 21 </span>    8b/copy                         0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *esi to eax</span>
+<span id="L22" class="LineNr"> 22 </span>    <span class="subxComment"># var maxf/edx: (addr byte) = &amp;f-&gt;data[f-&gt;write]</span>
+<span id="L23" class="LineNr"> 23 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/esi  0/index/eax  <span class="Normal"> . </span>          2/r32/edx   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy esi+eax+12 to edx</span>
+<span id="L24" class="LineNr"> 24 </span>    <span class="subxComment"># var currf/esi: (addr byte) = f-&gt;data</span>
+<span id="L25" class="LineNr"> 25 </span>    81          0/subop/add         3/mod/direct    6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esi</span>
+<span id="L26" class="LineNr"> 26 </span>    <span class="subxComment"># edi = s</span>
+<span id="L27" class="LineNr"> 27 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          7/r32/edi   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to edi</span>
+<span id="L28" class="LineNr"> 28 </span><span class="Constant">$stream-data-equal?:compare-sizes</span>:
+<span id="L29" class="LineNr"> 29 </span>    <span class="subxComment"># if (f-&gt;write != s-&gt;size) return false</span>
+<span id="L30" class="LineNr"> 30 </span>    39/compare                      0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare *edi and eax</span>
+<span id="L31" class="LineNr"> 31 </span>    75/jump-if-!=  $stream-data-equal?:false/disp8
+<span id="L32" class="LineNr"> 32 </span>    <span class="subxComment"># var currs/edi: (addr byte) = s-&gt;data</span>
+<span id="L33" class="LineNr"> 33 </span>    81          0/subop/add         3/mod/direct    7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to edi</span>
+<span id="L34" class="LineNr"> 34 </span>    <span class="subxComment"># var eax: byte = 0</span>
+<span id="L35" class="LineNr"> 35 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
+<span id="L36" class="LineNr"> 36 </span>    <span class="subxComment"># var ecx: byte = 0</span>
+<span id="L37" class="LineNr"> 37 </span>    31/xor                          3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ecx</span>
+<span id="L38" class="LineNr"> 38 </span><span class="Constant">$stream-data-equal?:loop</span>:
+<span id="L39" class="LineNr"> 39 </span>    <span class="subxComment"># if (currf &gt;= maxf) return true</span>
+<span id="L40" class="LineNr"> 40 </span>    39/compare                      3/mod/direct    6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare esi with edx</span>
+<span id="L41" class="LineNr"> 41 </span>    73/jump-if-addr&gt;=  $stream-data-equal?:true/disp8
+<span id="L42" class="LineNr"> 42 </span>    <span class="subxComment"># AL = *currs</span>
+<span id="L43" class="LineNr"> 43 </span>    8a/copy-byte                    0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *esi to AL</span>
+<span id="L44" class="LineNr"> 44 </span>    <span class="subxComment"># CL = *curr</span>
+<span id="L45" class="LineNr"> 45 </span>    8a/copy-byte                    0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/CL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *edi to CL</span>
+<span id="L46" class="LineNr"> 46 </span>    <span class="subxComment"># if (eax != ecx) return false</span>
+<span id="L47" class="LineNr"> 47 </span>    39/compare                      3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare eax and ecx</span>
+<span id="L48" class="LineNr"> 48 </span>    75/jump-if-!=  $stream-data-equal?:false/disp8
+<span id="L49" class="LineNr"> 49 </span>    <span class="subxComment"># ++f</span>
+<span id="L50" class="LineNr"> 50 </span>    46/increment-esi
+<span id="L51" class="LineNr"> 51 </span>    <span class="subxComment"># ++curr</span>
+<span id="L52" class="LineNr"> 52 </span>    47/increment-edi
+<span id="L53" class="LineNr"> 53 </span>    eb/jump $stream-data-equal?:<span class="Constant">loop</span>/disp8
+<span id="L54" class="LineNr"> 54 </span><span class="Constant">$stream-data-equal?:false</span>:
+<span id="L55" class="LineNr"> 55 </span>    b8/copy-to-eax  0/imm32
+<span id="L56" class="LineNr"> 56 </span>    eb/jump  $stream-data-equal?:end/disp8
+<span id="L57" class="LineNr"> 57 </span><span class="Constant">$stream-data-equal?:true</span>:
+<span id="L58" class="LineNr"> 58 </span>    b8/copy-to-eax  1/imm32
+<span id="L59" class="LineNr"> 59 </span><span class="Constant">$stream-data-equal?:end</span>:
+<span id="L60" class="LineNr"> 60 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L61" class="LineNr"> 61 </span>    5f/pop-to-edi
+<span id="L62" class="LineNr"> 62 </span>    5e/pop-to-esi
+<span id="L63" class="LineNr"> 63 </span>    5a/pop-to-edx
+<span id="L64" class="LineNr"> 64 </span>    59/pop-to-ecx
+<span id="L65" class="LineNr"> 65 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L66" class="LineNr"> 66 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L67" class="LineNr"> 67 </span>    5d/pop-to-ebp
+<span id="L68" class="LineNr"> 68 </span>    c3/return
+<span id="L69" class="LineNr"> 69 </span>
+<span id="L70" class="LineNr"> 70 </span><span class="subxTest">test-stream-data-equal</span>:
+<span id="L71" class="LineNr"> 71 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L72" class="LineNr"> 72 </span>    55/push-ebp
+<span id="L73" class="LineNr"> 73 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L74" class="LineNr"> 74 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L75" class="LineNr"> 75 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L76" class="LineNr"> 76 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L77" class="LineNr"> 77 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L78" class="LineNr"> 78 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L79" class="LineNr"> 79 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L80" class="LineNr"> 80 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L81" class="LineNr"> 81 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc&quot;)</span>
+<span id="L82" class="LineNr"> 82 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L83" class="LineNr"> 83 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L84" class="LineNr"> 84 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L85" class="LineNr"> 85 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L86" class="LineNr"> 86 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L87" class="LineNr"> 87 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L88" class="LineNr"> 88 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L89" class="LineNr"> 89 </span>    <span class="subxComment"># eax = stream-data-equal?(_test-stream, &quot;Abc&quot;)</span>
+<span id="L90" class="LineNr"> 90 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L91" class="LineNr"> 91 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L92" class="LineNr"> 92 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L93" class="LineNr"> 93 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L94" class="LineNr"> 94 </span>    e8/call  <a href='109stream-equal.subx.html#L9'>stream-data-equal?</a>/disp32
+<span id="L95" class="LineNr"> 95 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L96" class="LineNr"> 96 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L98" class="LineNr"> 98 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L99" class="LineNr"> 99 </span>    68/push  <span class="Constant">&quot;F - test-stream-data-equal&quot;</span>/imm32
+<span id="L100" class="LineNr">100 </span>    68/push  1/imm32
+<span id="L101" class="LineNr">101 </span>    50/push-eax
+<span id="L102" class="LineNr">102 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L103" class="LineNr">103 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L104" class="LineNr">104 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L105" class="LineNr">105 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L106" class="LineNr">106 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L107" class="LineNr">107 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L108" class="LineNr">108 </span>    5d/pop-to-ebp
+<span id="L109" class="LineNr">109 </span>    c3/return
+<span id="L110" class="LineNr">110 </span>
+<span id="L111" class="LineNr">111 </span><span class="subxTest">test-stream-data-equal-2</span>:
+<span id="L112" class="LineNr">112 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L113" class="LineNr">113 </span>    55/push-ebp
+<span id="L114" class="LineNr">114 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L115" class="LineNr">115 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L116" class="LineNr">116 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L117" class="LineNr">117 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L118" class="LineNr">118 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L119" class="LineNr">119 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L120" class="LineNr">120 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L121" class="LineNr">121 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L122" class="LineNr">122 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc&quot;)</span>
+<span id="L123" class="LineNr">123 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L124" class="LineNr">124 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L125" class="LineNr">125 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L126" class="LineNr">126 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L127" class="LineNr">127 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L128" class="LineNr">128 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L129" class="LineNr">129 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L130" class="LineNr">130 </span>    <span class="subxComment"># eax = stream-data-equal?(_test-stream, &quot;Abd&quot;)</span>
+<span id="L131" class="LineNr">131 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L132" class="LineNr">132 </span>    68/push  <span class="Constant">&quot;Abd&quot;</span>/imm32
+<span id="L133" class="LineNr">133 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L134" class="LineNr">134 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L135" class="LineNr">135 </span>    e8/call  <a href='109stream-equal.subx.html#L9'>stream-data-equal?</a>/disp32
+<span id="L136" class="LineNr">136 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L137" class="LineNr">137 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L138" class="LineNr">138 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L139" class="LineNr">139 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L140" class="LineNr">140 </span>    68/push  <span class="Constant">&quot;F - test-stream-data-equal-2&quot;</span>/imm32
+<span id="L141" class="LineNr">141 </span>    68/push  0/imm32
+<span id="L142" class="LineNr">142 </span>    50/push-eax
+<span id="L143" class="LineNr">143 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L144" class="LineNr">144 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L145" class="LineNr">145 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L146" class="LineNr">146 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L147" class="LineNr">147 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L148" class="LineNr">148 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L149" class="LineNr">149 </span>    5d/pop-to-ebp
+<span id="L150" class="LineNr">150 </span>    c3/return
+<span id="L151" class="LineNr">151 </span>
+<span id="L152" class="LineNr">152 </span><span class="subxTest">test-stream-data-equal-size-check</span>:
+<span id="L153" class="LineNr">153 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L154" class="LineNr">154 </span>    55/push-ebp
+<span id="L155" class="LineNr">155 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L156" class="LineNr">156 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L157" class="LineNr">157 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L158" class="LineNr">158 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L159" class="LineNr">159 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L160" class="LineNr">160 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L161" class="LineNr">161 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L162" class="LineNr">162 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L163" class="LineNr">163 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc&quot;)</span>
+<span id="L164" class="LineNr">164 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L165" class="LineNr">165 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L166" class="LineNr">166 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L167" class="LineNr">167 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L168" class="LineNr">168 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L169" class="LineNr">169 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L170" class="LineNr">170 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L171" class="LineNr">171 </span>    <span class="subxComment"># eax = stream-data-equal?(_test-stream, &quot;Abcd&quot;)</span>
+<span id="L172" class="LineNr">172 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L173" class="LineNr">173 </span>    68/push  <span class="Constant">&quot;Abcd&quot;</span>/imm32
+<span id="L174" class="LineNr">174 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L175" class="LineNr">175 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L176" class="LineNr">176 </span>    e8/call  <a href='109stream-equal.subx.html#L9'>stream-data-equal?</a>/disp32
+<span id="L177" class="LineNr">177 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L178" class="LineNr">178 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L179" class="LineNr">179 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L180" class="LineNr">180 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L181" class="LineNr">181 </span>    68/push  <span class="Constant">&quot;F - test-stream-data-equal-size-check&quot;</span>/imm32
+<span id="L182" class="LineNr">182 </span>    68/push  0/imm32
+<span id="L183" class="LineNr">183 </span>    50/push-eax
+<span id="L184" class="LineNr">184 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L185" class="LineNr">185 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L186" class="LineNr">186 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L187" class="LineNr">187 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L188" class="LineNr">188 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L189" class="LineNr">189 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L190" class="LineNr">190 </span>    5d/pop-to-ebp
+<span id="L191" class="LineNr">191 </span>    c3/return
+<span id="L192" class="LineNr">192 </span>
+<span id="L193" class="LineNr">193 </span><span class="subxComment"># helper for later tests</span>
+<span id="L194" class="LineNr">194 </span><span class="subxFunction">check-stream-equal</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte), msg: (addr array byte)</span>
+<span id="L195" class="LineNr">195 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L196" class="LineNr">196 </span>    55/push-ebp
+<span id="L197" class="LineNr">197 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L198" class="LineNr">198 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L199" class="LineNr">199 </span>    50/push-eax
+<span id="L200" class="LineNr">200 </span>    <span class="subxComment"># eax = stream-data-equal?(f, s)</span>
+<span id="L201" class="LineNr">201 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L202" class="LineNr">202 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
+<span id="L203" class="LineNr">203 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+8)</span>
+<span id="L204" class="LineNr">204 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L205" class="LineNr">205 </span>    e8/call  <a href='109stream-equal.subx.html#L9'>stream-data-equal?</a>/disp32
+<span id="L206" class="LineNr">206 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L207" class="LineNr">207 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L208" class="LineNr">208 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L209" class="LineNr">209 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L210" class="LineNr">210 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0x10/disp8     <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+16)</span>
+<span id="L211" class="LineNr">211 </span>    68/push  1/imm32
+<span id="L212" class="LineNr">212 </span>    50/push-eax
+<span id="L213" class="LineNr">213 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L214" class="LineNr">214 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L215" class="LineNr">215 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L216" class="LineNr">216 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L217" class="LineNr">217 </span><span class="Constant">$check-stream-equal:end</span>:
+<span id="L218" class="LineNr">218 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L219" class="LineNr">219 </span>    58/pop-to-eax
+<span id="L220" class="LineNr">220 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L221" class="LineNr">221 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L222" class="LineNr">222 </span>    5d/pop-to-ebp
+<span id="L223" class="LineNr">223 </span>    c3/return
+<span id="L224" class="LineNr">224 </span>
+<span id="L225" class="LineNr">225 </span><span class="subxComment"># scan the next line until newline starting from f-&gt;read and compare it with</span>
+<span id="L226" class="LineNr">226 </span><span class="subxComment"># 's' (ignoring the trailing newline)</span>
+<span id="L227" class="LineNr">227 </span><span class="subxComment"># on success, set f-&gt;read to after the next newline</span>
+<span id="L228" class="LineNr">228 </span><span class="subxComment"># on failure, leave f-&gt;read unmodified</span>
+<span id="L229" class="LineNr">229 </span><span class="subxComment"># this function is usually used only in tests, so we repeatedly write f-&gt;read</span>
+<span id="L230" class="LineNr">230 </span><span class="subxFunction">next-stream-line-equal?</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte) -&gt; result/eax: boolean</span>
+<span id="L231" class="LineNr">231 </span>    <span class="subxComment"># pseudocode:</span>
+<span id="L232" class="LineNr">232 </span>    <span class="subxComment">#   currf = f-&gt;read  # bound: f-&gt;write</span>
+<span id="L233" class="LineNr">233 </span>    <span class="subxComment">#   currs = 0  # bound: s-&gt;size</span>
+<span id="L234" class="LineNr">234 </span>    <span class="subxComment">#   while true</span>
+<span id="L235" class="LineNr">235 </span>    <span class="subxComment">#     if currf &gt;= f-&gt;write</span>
+<span id="L236" class="LineNr">236 </span>    <span class="subxComment">#       return currs &gt;= s-&gt;size</span>
+<span id="L237" class="LineNr">237 </span>    <span class="subxComment">#     if f[currf] == '\n'</span>
+<span id="L238" class="LineNr">238 </span>    <span class="subxComment">#       ++currf</span>
 <span id="L239" class="LineNr">239 </span>    <span class="subxComment">#       return currs &gt;= s-&gt;size</span>
-<span id="L240" class="LineNr">240 </span>    <span class="subxComment">#     if f[currf] == '\n'</span>
-<span id="L241" class="LineNr">241 </span>    <span class="subxComment">#       ++currf</span>
-<span id="L242" class="LineNr">242 </span>    <span class="subxComment">#       return currs &gt;= s-&gt;size</span>
-<span id="L243" class="LineNr">243 </span>    <span class="subxComment">#     if (currs &gt;= s-&gt;size) return false  # the current line of f still has data to match</span>
-<span id="L244" class="LineNr">244 </span>    <span class="subxComment">#     if (f[currf] != s[currs]) return false</span>
-<span id="L245" class="LineNr">245 </span>    <span class="subxComment">#     ++currf</span>
-<span id="L246" class="LineNr">246 </span>    <span class="subxComment">#     ++currs</span>
-<span id="L247" class="LineNr">247 </span>    <span class="subxComment">#</span>
-<span id="L248" class="LineNr">248 </span>    <span class="subxComment"># collapsing the two branches that can return true:</span>
-<span id="L249" class="LineNr">249 </span>    <span class="subxComment">#   currf = f-&gt;read  # bound: f-&gt;write</span>
-<span id="L250" class="LineNr">250 </span>    <span class="subxComment">#   currs = 0  # bound: s-&gt;size</span>
-<span id="L251" class="LineNr">251 </span>    <span class="subxComment">#   while true</span>
-<span id="L252" class="LineNr">252 </span>    <span class="subxComment">#     if (currf &gt;= f-&gt;write) break</span>
-<span id="L253" class="LineNr">253 </span>    <span class="subxComment">#     if (f[currf] == '\n') break</span>
-<span id="L254" class="LineNr">254 </span>    <span class="subxComment">#     if (currs &gt;= s-&gt;size) return false  # the current line of f still has data to match</span>
-<span id="L255" class="LineNr">255 </span>    <span class="subxComment">#     if (f[currf] != s[currs]) return false</span>
-<span id="L256" class="LineNr">256 </span>    <span class="subxComment">#     ++currf</span>
-<span id="L257" class="LineNr">257 </span>    <span class="subxComment">#     ++currs</span>
-<span id="L258" class="LineNr">258 </span>    <span class="subxComment">#   ++currf  # skip '\n'</span>
-<span id="L259" class="LineNr">259 </span>    <span class="subxComment">#   return currs &gt;= s-&gt;size</span>
-<span id="L260" class="LineNr">260 </span>    <span class="subxComment"># Here the final `++currf` is sometimes unnecessary (if we're already at the end of the stream)</span>
-<span id="L261" class="LineNr">261 </span>    <span class="subxComment">#</span>
-<span id="L262" class="LineNr">262 </span>    <span class="subxComment"># registers:</span>
-<span id="L263" class="LineNr">263 </span>    <span class="subxComment">#   f: esi</span>
-<span id="L264" class="LineNr">264 </span>    <span class="subxComment">#   s: edi</span>
-<span id="L265" class="LineNr">265 </span>    <span class="subxComment">#   currf: ecx</span>
-<span id="L266" class="LineNr">266 </span>    <span class="subxComment">#   currs: edx</span>
-<span id="L267" class="LineNr">267 </span>    <span class="subxComment">#   f[currf]: eax</span>
-<span id="L268" class="LineNr">268 </span>    <span class="subxComment">#   s[currs]: ebx</span>
-<span id="L269" class="LineNr">269 </span>    <span class="subxComment">#</span>
-<span id="L270" class="LineNr">270 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L271" class="LineNr">271 </span>    55/push-ebp
-<span id="L272" class="LineNr">272 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L273" class="LineNr">273 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L274" class="LineNr">274 </span>    51/push-ecx
-<span id="L275" class="LineNr">275 </span>    52/push-edx
-<span id="L276" class="LineNr">276 </span>    56/push-esi
-<span id="L277" class="LineNr">277 </span>    57/push-edi
-<span id="L278" class="LineNr">278 </span>    <span class="subxComment"># esi = f</span>
-<span id="L279" class="LineNr">279 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to esi</span>
-<span id="L280" class="LineNr">280 </span>    <span class="subxComment"># var currf/ecx: int = f-&gt;read</span>
-<span id="L281" class="LineNr">281 </span>    8b/copy                         1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(esi+4) to ecx</span>
-<span id="L282" class="LineNr">282 </span>    <span class="subxComment"># edi = s</span>
-<span id="L283" class="LineNr">283 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          7/r32/edi   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to edi</span>
-<span id="L284" class="LineNr">284 </span>    <span class="subxComment"># var currs/edx: int = 0</span>
-<span id="L285" class="LineNr">285 </span>    31/xor                          3/mod/direct    2/rm32/edx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear edx</span>
-<span id="L286" class="LineNr">286 </span>    <span class="subxComment"># var c1/eax: byte = 0</span>
-<span id="L287" class="LineNr">287 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
-<span id="L288" class="LineNr">288 </span>    <span class="subxComment"># var c2/ebx: byte = 0</span>
-<span id="L289" class="LineNr">289 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
-<span id="L290" class="LineNr">290 </span><span class="Constant">$next-stream-line-equal?:loop</span>:
-<span id="L291" class="LineNr">291 </span>    <span class="subxComment"># if (currf &gt;= f-&gt;write) break</span>
-<span id="L292" class="LineNr">292 </span>    3b/compare                      0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with *esi</span>
-<span id="L293" class="LineNr">293 </span>    7d/jump-if-&gt;=  $next-stream-line-equal?:<span class="Constant">break</span>/disp8
-<span id="L294" class="LineNr">294 </span>    <span class="subxComment"># c1 = f-&gt;data[f-&gt;read]</span>
-<span id="L295" class="LineNr">295 </span>    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    6/base/esi  1/index/ecx  <span class="Normal"> . </span>          0/r32/AL    0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *(esi+ecx+12) to AL</span>
-<span id="L296" class="LineNr">296 </span>    <span class="subxComment"># if (c1 == '\n') break</span>
-<span id="L297" class="LineNr">297 </span>    3d/compare-eax-and  0xa/imm32/newline
-<span id="L298" class="LineNr">298 </span>    74/jump-if-=  $next-stream-line-equal?:<span class="Constant">break</span>/disp8
-<span id="L299" class="LineNr">299 </span>    <span class="subxComment"># if (currs &gt;= s-&gt;size) return false</span>
-<span id="L300" class="LineNr">300 </span>    3b/compare                      0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare edx with *edi</span>
-<span id="L301" class="LineNr">301 </span>    7d/jump-if-&gt;=  $next-stream-line-equal?:false/disp8
-<span id="L302" class="LineNr">302 </span>    <span class="subxComment"># c2 = s-&gt;data[currs]</span>
-<span id="L303" class="LineNr">303 </span>    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    7/base/edi  2/index/edx  <span class="Normal"> . </span>          3/r32/BL    4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *(edi+edx+4) to BL</span>
-<span id="L304" class="LineNr">304 </span>    <span class="subxComment"># if (c1 != c2) return false</span>
-<span id="L305" class="LineNr">305 </span>    39/compare                      3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare eax and ebx</span>
-<span id="L306" class="LineNr">306 </span>    75/jump-if-!=  $next-stream-line-equal?:false/disp8
-<span id="L307" class="LineNr">307 </span>    <span class="subxComment"># ++currf</span>
-<span id="L308" class="LineNr">308 </span>    41/increment-ecx
-<span id="L309" class="LineNr">309 </span>    <span class="subxComment"># ++currs</span>
-<span id="L310" class="LineNr">310 </span>    42/increment-edx
-<span id="L311" class="LineNr">311 </span>    eb/jump $next-stream-line-equal?:<span class="Constant">loop</span>/disp8
-<span id="L312" class="LineNr">312 </span><span class="Constant">$next-stream-line-equal?:break</span>:
-<span id="L313" class="LineNr">313 </span>    <span class="subxComment"># ++currf</span>
-<span id="L314" class="LineNr">314 </span>    41/increment-ecx
-<span id="L315" class="LineNr">315 </span>    <span class="subxComment"># if (currs &gt;= s-&gt;size) return true</span>
-<span id="L316" class="LineNr">316 </span>    3b/compare                      0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare edx with *edi</span>
-<span id="L317" class="LineNr">317 </span>    7c/jump-if-&lt;  $next-stream-line-equal?:false/disp8
-<span id="L318" class="LineNr">318 </span><span class="Constant">$next-stream-line-equal?:true</span>:
-<span id="L319" class="LineNr">319 </span>    b8/copy-to-eax  1/imm32
-<span id="L320" class="LineNr">320 </span>    <span class="subxComment"># persist f-&gt;read on success</span>
-<span id="L321" class="LineNr">321 </span>    89/copy                         1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy ecx to *(esi+4)</span>
-<span id="L322" class="LineNr">322 </span>    eb/jump  $next-stream-line-equal?:end/disp8
-<span id="L323" class="LineNr">323 </span><span class="Constant">$next-stream-line-equal?:false</span>:
-<span id="L324" class="LineNr">324 </span>    b8/copy-to-eax  0/imm32
-<span id="L325" class="LineNr">325 </span><span class="Constant">$next-stream-line-equal?:end</span>:
-<span id="L326" class="LineNr">326 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L327" class="LineNr">327 </span>    5f/pop-to-edi
-<span id="L328" class="LineNr">328 </span>    5e/pop-to-esi
-<span id="L329" class="LineNr">329 </span>    5a/pop-to-edx
-<span id="L330" class="LineNr">330 </span>    59/pop-to-ecx
-<span id="L331" class="LineNr">331 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L332" class="LineNr">332 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L333" class="LineNr">333 </span>    5d/pop-to-ebp
-<span id="L334" class="LineNr">334 </span>    c3/return
-<span id="L335" class="LineNr">335 </span>
-<span id="L336" class="LineNr">336 </span><span class="subxTest">test-next-stream-line-equal-stops-at-newline</span>:
-<span id="L337" class="LineNr">337 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L338" class="LineNr">338 </span>    55/push-ebp
-<span id="L339" class="LineNr">339 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L340" class="LineNr">340 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L341" class="LineNr">341 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L342" class="LineNr">342 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L343" class="LineNr">343 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L344" class="LineNr">344 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L345" class="LineNr">345 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L346" class="LineNr">346 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L347" class="LineNr">347 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef&quot;)</span>
-<span id="L348" class="LineNr">348 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L349" class="LineNr">349 </span>    68/push  <span class="Constant">&quot;Abc\ndef&quot;</span>/imm32
-<span id="L350" class="LineNr">350 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L351" class="LineNr">351 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L352" class="LineNr">352 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L353" class="LineNr">353 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L354" class="LineNr">354 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L355" class="LineNr">355 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;Abc&quot;)</span>
-<span id="L356" class="LineNr">356 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L357" class="LineNr">357 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L358" class="LineNr">358 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L359" class="LineNr">359 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L360" class="LineNr">360 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L361" class="LineNr">361 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L362" class="LineNr">362 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L363" class="LineNr">363 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
-<span id="L364" class="LineNr">364 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L365" class="LineNr">365 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-stops-at-newline&quot;</span>/imm32
-<span id="L366" class="LineNr">366 </span>    68/push  1/imm32
-<span id="L367" class="LineNr">367 </span>    50/push-eax
-<span id="L368" class="LineNr">368 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L369" class="LineNr">369 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L370" class="LineNr">370 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L371" class="LineNr">371 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L372" class="LineNr">372 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L373" class="LineNr">373 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L374" class="LineNr">374 </span>    5d/pop-to-ebp
-<span id="L375" class="LineNr">375 </span>    c3/return
-<span id="L376" class="LineNr">376 </span>
-<span id="L377" class="LineNr">377 </span><span class="subxTest">test-next-stream-line-equal-stops-at-newline-2</span>:
-<span id="L378" class="LineNr">378 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L379" class="LineNr">379 </span>    55/push-ebp
-<span id="L380" class="LineNr">380 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L381" class="LineNr">381 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L382" class="LineNr">382 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L383" class="LineNr">383 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L384" class="LineNr">384 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L385" class="LineNr">385 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L386" class="LineNr">386 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L387" class="LineNr">387 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L388" class="LineNr">388 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef&quot;)</span>
-<span id="L389" class="LineNr">389 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L390" class="LineNr">390 </span>    68/push  <span class="Constant">&quot;Abc\ndef&quot;</span>/imm32
-<span id="L391" class="LineNr">391 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L392" class="LineNr">392 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L393" class="LineNr">393 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L394" class="LineNr">394 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L395" class="LineNr">395 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L396" class="LineNr">396 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;def&quot;)</span>
-<span id="L397" class="LineNr">397 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L398" class="LineNr">398 </span>    68/push  <span class="Constant">&quot;def&quot;</span>/imm32
-<span id="L399" class="LineNr">399 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L400" class="LineNr">400 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L401" class="LineNr">401 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L402" class="LineNr">402 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L403" class="LineNr">403 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L404" class="LineNr">404 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
-<span id="L405" class="LineNr">405 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L406" class="LineNr">406 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-stops-at-newline-2&quot;</span>/imm32
-<span id="L407" class="LineNr">407 </span>    68/push  0/imm32
-<span id="L408" class="LineNr">408 </span>    50/push-eax
-<span id="L409" class="LineNr">409 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L410" class="LineNr">410 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L411" class="LineNr">411 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L412" class="LineNr">412 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L413" class="LineNr">413 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L414" class="LineNr">414 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L415" class="LineNr">415 </span>    5d/pop-to-ebp
-<span id="L416" class="LineNr">416 </span>    c3/return
-<span id="L417" class="LineNr">417 </span>
-<span id="L418" class="LineNr">418 </span><span class="subxTest">test-next-stream-line-equal-skips-newline</span>:
-<span id="L419" class="LineNr">419 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L420" class="LineNr">420 </span>    55/push-ebp
-<span id="L421" class="LineNr">421 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L422" class="LineNr">422 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L423" class="LineNr">423 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L424" class="LineNr">424 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L425" class="LineNr">425 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L426" class="LineNr">426 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L427" class="LineNr">427 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L428" class="LineNr">428 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L429" class="LineNr">429 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef\n&quot;)</span>
-<span id="L430" class="LineNr">430 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L431" class="LineNr">431 </span>    68/push  <span class="Constant">&quot;Abc\ndef\n&quot;</span>/imm32
-<span id="L432" class="LineNr">432 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L433" class="LineNr">433 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L434" class="LineNr">434 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L435" class="LineNr">435 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L436" class="LineNr">436 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L437" class="LineNr">437 </span>    <span class="subxComment"># next-stream-line-equal?(_test-stream, &quot;Abc&quot;)</span>
-<span id="L438" class="LineNr">438 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L439" class="LineNr">439 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L440" class="LineNr">440 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L441" class="LineNr">441 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L442" class="LineNr">442 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L443" class="LineNr">443 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L444" class="LineNr">444 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L445" class="LineNr">445 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;def&quot;)</span>
-<span id="L446" class="LineNr">446 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L447" class="LineNr">447 </span>    68/push  <span class="Constant">&quot;def&quot;</span>/imm32
-<span id="L448" class="LineNr">448 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L449" class="LineNr">449 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L450" class="LineNr">450 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L451" class="LineNr">451 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L452" class="LineNr">452 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L453" class="LineNr">453 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
-<span id="L454" class="LineNr">454 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L455" class="LineNr">455 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-skips-newline&quot;</span>/imm32
-<span id="L456" class="LineNr">456 </span>    68/push  1/imm32
-<span id="L457" class="LineNr">457 </span>    50/push-eax
-<span id="L458" class="LineNr">458 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L459" class="LineNr">459 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L460" class="LineNr">460 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L461" class="LineNr">461 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L462" class="LineNr">462 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L463" class="LineNr">463 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L464" class="LineNr">464 </span>    5d/pop-to-ebp
-<span id="L465" class="LineNr">465 </span>    c3/return
-<span id="L466" class="LineNr">466 </span>
-<span id="L467" class="LineNr">467 </span><span class="subxTest">test-next-stream-line-equal-handles-final-line</span>:
-<span id="L468" class="LineNr">468 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L469" class="LineNr">469 </span>    55/push-ebp
-<span id="L470" class="LineNr">470 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L471" class="LineNr">471 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L472" class="LineNr">472 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L473" class="LineNr">473 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L474" class="LineNr">474 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L475" class="LineNr">475 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L476" class="LineNr">476 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L477" class="LineNr">477 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L478" class="LineNr">478 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef&quot;)</span>
-<span id="L479" class="LineNr">479 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L480" class="LineNr">480 </span>    68/push  <span class="Constant">&quot;Abc\ndef&quot;</span>/imm32
-<span id="L481" class="LineNr">481 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L482" class="LineNr">482 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L483" class="LineNr">483 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
-<span id="L484" class="LineNr">484 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L485" class="LineNr">485 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L486" class="LineNr">486 </span>    <span class="subxComment"># next-stream-line-equal?(_test-stream, &quot;Abc&quot;)</span>
-<span id="L487" class="LineNr">487 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L488" class="LineNr">488 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
-<span id="L489" class="LineNr">489 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L490" class="LineNr">490 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L491" class="LineNr">491 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L492" class="LineNr">492 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L493" class="LineNr">493 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L494" class="LineNr">494 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;def&quot;)</span>
-<span id="L495" class="LineNr">495 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L496" class="LineNr">496 </span>    68/push  <span class="Constant">&quot;def&quot;</span>/imm32
-<span id="L497" class="LineNr">497 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L498" class="LineNr">498 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L499" class="LineNr">499 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L500" class="LineNr">500 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L501" class="LineNr">501 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L502" class="LineNr">502 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
-<span id="L503" class="LineNr">503 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L504" class="LineNr">504 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-skips-newline&quot;</span>/imm32
-<span id="L505" class="LineNr">505 </span>    68/push  1/imm32
-<span id="L506" class="LineNr">506 </span>    50/push-eax
-<span id="L507" class="LineNr">507 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L508" class="LineNr">508 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L509" class="LineNr">509 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L510" class="LineNr">510 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L511" class="LineNr">511 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L512" class="LineNr">512 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L513" class="LineNr">513 </span>    5d/pop-to-ebp
-<span id="L514" class="LineNr">514 </span>    c3/return
-<span id="L515" class="LineNr">515 </span>
-<span id="L516" class="LineNr">516 </span><span class="subxTest">test-next-stream-line-equal-always-fails-after-Eof</span>:
-<span id="L517" class="LineNr">517 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L518" class="LineNr">518 </span>    55/push-ebp
-<span id="L519" class="LineNr">519 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L520" class="LineNr">520 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
-<span id="L521" class="LineNr">521 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L522" class="LineNr">522 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L523" class="LineNr">523 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L524" class="LineNr">524 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
-<span id="L525" class="LineNr">525 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L526" class="LineNr">526 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
-<span id="L527" class="LineNr">527 </span>    <span class="subxComment"># write nothing</span>
-<span id="L528" class="LineNr">528 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;&quot;)</span>
-<span id="L529" class="LineNr">529 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L530" class="LineNr">530 </span>    68/push  <span class="Constant">&quot;&quot;</span>/imm32
-<span id="L531" class="LineNr">531 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L532" class="LineNr">532 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L533" class="LineNr">533 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L534" class="LineNr">534 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L535" class="LineNr">535 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L536" class="LineNr">536 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
-<span id="L537" class="LineNr">537 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L538" class="LineNr">538 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-always-fails-after-Eof&quot;</span>/imm32
-<span id="L539" class="LineNr">539 </span>    68/push  1/imm32
-<span id="L540" class="LineNr">540 </span>    50/push-eax
-<span id="L541" class="LineNr">541 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L542" class="LineNr">542 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L543" class="LineNr">543 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L544" class="LineNr">544 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L545" class="LineNr">545 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;&quot;)</span>
-<span id="L546" class="LineNr">546 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L547" class="LineNr">547 </span>    68/push  <span class="Constant">&quot;&quot;</span>/imm32
-<span id="L548" class="LineNr">548 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
-<span id="L549" class="LineNr">549 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L550" class="LineNr">550 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L551" class="LineNr">551 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L552" class="LineNr">552 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L553" class="LineNr">553 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
-<span id="L554" class="LineNr">554 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L555" class="LineNr">555 </span>    68/push  <span class="Constant">&quot;F - <a href='109stream-equal.subx.html#L516'>test-next-stream-line-equal-always-fails-after-Eof</a>/2&quot;</span>/imm32
-<span id="L556" class="LineNr">556 </span>    68/push  1/imm32
-<span id="L557" class="LineNr">557 </span>    50/push-eax
-<span id="L558" class="LineNr">558 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L559" class="LineNr">559 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L560" class="LineNr">560 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L561" class="LineNr">561 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L562" class="LineNr">562 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L563" class="LineNr">563 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L564" class="LineNr">564 </span>    5d/pop-to-ebp
-<span id="L565" class="LineNr">565 </span>    c3/return
-<span id="L566" class="LineNr">566 </span>
-<span id="L567" class="LineNr">567 </span><span class="subxComment"># helper for later tests</span>
-<span id="L568" class="LineNr">568 </span><span class="subxFunction">check-next-stream-line-equal</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte), msg: (addr array byte)</span>
-<span id="L569" class="LineNr">569 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L570" class="LineNr">570 </span>    55/push-ebp
-<span id="L571" class="LineNr">571 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L572" class="LineNr">572 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L573" class="LineNr">573 </span>    50/push-eax
-<span id="L574" class="LineNr">574 </span>    <span class="subxComment"># eax = next-stream-line-equal?(f, s)</span>
-<span id="L575" class="LineNr">575 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L576" class="LineNr">576 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
-<span id="L577" class="LineNr">577 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+8)</span>
-<span id="L578" class="LineNr">578 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L579" class="LineNr">579 </span>    e8/call  <a href='109stream-equal.subx.html#L233'>next-stream-line-equal?</a>/disp32
-<span id="L580" class="LineNr">580 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L581" class="LineNr">581 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L582" class="LineNr">582 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
-<span id="L583" class="LineNr">583 </span>    <span class="subxS2Comment"># . . push args</span>
-<span id="L584" class="LineNr">584 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0x10/disp8     <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+16)</span>
-<span id="L585" class="LineNr">585 </span>    68/push  1/imm32
-<span id="L586" class="LineNr">586 </span>    50/push-eax
-<span id="L587" class="LineNr">587 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L588" class="LineNr">588 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
-<span id="L589" class="LineNr">589 </span>    <span class="subxS2Comment"># . . discard args</span>
-<span id="L590" class="LineNr">590 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
-<span id="L591" class="LineNr">591 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L592" class="LineNr">592 </span>    58/pop-to-eax
-<span id="L593" class="LineNr">593 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L594" class="LineNr">594 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L595" class="LineNr">595 </span>    5d/pop-to-ebp
-<span id="L596" class="LineNr">596 </span>    c3/return
-<span id="L597" class="LineNr">597 </span>
-<span id="L598" class="LineNr">598 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
+<span id="L240" class="LineNr">240 </span>    <span class="subxComment">#     if (currs &gt;= s-&gt;size) return false  # the current line of f still has data to match</span>
+<span id="L241" class="LineNr">241 </span>    <span class="subxComment">#     if (f[currf] != s[currs]) return false</span>
+<span id="L242" class="LineNr">242 </span>    <span class="subxComment">#     ++currf</span>
+<span id="L243" class="LineNr">243 </span>    <span class="subxComment">#     ++currs</span>
+<span id="L244" class="LineNr">244 </span>    <span class="subxComment">#</span>
+<span id="L245" class="LineNr">245 </span>    <span class="subxComment"># collapsing the two branches that can return true:</span>
+<span id="L246" class="LineNr">246 </span>    <span class="subxComment">#   currf = f-&gt;read  # bound: f-&gt;write</span>
+<span id="L247" class="LineNr">247 </span>    <span class="subxComment">#   currs = 0  # bound: s-&gt;size</span>
+<span id="L248" class="LineNr">248 </span>    <span class="subxComment">#   while true</span>
+<span id="L249" class="LineNr">249 </span>    <span class="subxComment">#     if (currf &gt;= f-&gt;write) break</span>
+<span id="L250" class="LineNr">250 </span>    <span class="subxComment">#     if (f[currf] == '\n') break</span>
+<span id="L251" class="LineNr">251 </span>    <span class="subxComment">#     if (currs &gt;= s-&gt;size) return false  # the current line of f still has data to match</span>
+<span id="L252" class="LineNr">252 </span>    <span class="subxComment">#     if (f[currf] != s[currs]) return false</span>
+<span id="L253" class="LineNr">253 </span>    <span class="subxComment">#     ++currf</span>
+<span id="L254" class="LineNr">254 </span>    <span class="subxComment">#     ++currs</span>
+<span id="L255" class="LineNr">255 </span>    <span class="subxComment">#   ++currf  # skip '\n'</span>
+<span id="L256" class="LineNr">256 </span>    <span class="subxComment">#   return currs &gt;= s-&gt;size</span>
+<span id="L257" class="LineNr">257 </span>    <span class="subxComment"># Here the final `++currf` is sometimes unnecessary (if we're already at the end of the stream)</span>
+<span id="L258" class="LineNr">258 </span>    <span class="subxComment">#</span>
+<span id="L259" class="LineNr">259 </span>    <span class="subxComment"># registers:</span>
+<span id="L260" class="LineNr">260 </span>    <span class="subxComment">#   f: esi</span>
+<span id="L261" class="LineNr">261 </span>    <span class="subxComment">#   s: edi</span>
+<span id="L262" class="LineNr">262 </span>    <span class="subxComment">#   currf: ecx</span>
+<span id="L263" class="LineNr">263 </span>    <span class="subxComment">#   currs: edx</span>
+<span id="L264" class="LineNr">264 </span>    <span class="subxComment">#   f[currf]: eax</span>
+<span id="L265" class="LineNr">265 </span>    <span class="subxComment">#   s[currs]: ebx</span>
+<span id="L266" class="LineNr">266 </span>    <span class="subxComment">#</span>
+<span id="L267" class="LineNr">267 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L268" class="LineNr">268 </span>    55/push-ebp
+<span id="L269" class="LineNr">269 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L270" class="LineNr">270 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L271" class="LineNr">271 </span>    51/push-ecx
+<span id="L272" class="LineNr">272 </span>    52/push-edx
+<span id="L273" class="LineNr">273 </span>    56/push-esi
+<span id="L274" class="LineNr">274 </span>    57/push-edi
+<span id="L275" class="LineNr">275 </span>    <span class="subxComment"># esi = f</span>
+<span id="L276" class="LineNr">276 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to esi</span>
+<span id="L277" class="LineNr">277 </span>    <span class="subxComment"># var currf/ecx: int = f-&gt;read</span>
+<span id="L278" class="LineNr">278 </span>    8b/copy                         1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(esi+4) to ecx</span>
+<span id="L279" class="LineNr">279 </span>    <span class="subxComment"># edi = s</span>
+<span id="L280" class="LineNr">280 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          7/r32/edi   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to edi</span>
+<span id="L281" class="LineNr">281 </span>    <span class="subxComment"># var currs/edx: int = 0</span>
+<span id="L282" class="LineNr">282 </span>    31/xor                          3/mod/direct    2/rm32/edx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear edx</span>
+<span id="L283" class="LineNr">283 </span>    <span class="subxComment"># var c1/eax: byte = 0</span>
+<span id="L284" class="LineNr">284 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
+<span id="L285" class="LineNr">285 </span>    <span class="subxComment"># var c2/ebx: byte = 0</span>
+<span id="L286" class="LineNr">286 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
+<span id="L287" class="LineNr">287 </span><span class="Constant">$next-stream-line-equal?:loop</span>:
+<span id="L288" class="LineNr">288 </span>    <span class="subxComment"># if (currf &gt;= f-&gt;write) break</span>
+<span id="L289" class="LineNr">289 </span>    3b/compare                      0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with *esi</span>
+<span id="L290" class="LineNr">290 </span>    7d/jump-if-&gt;=  $next-stream-line-equal?:<span class="Constant">break</span>/disp8
+<span id="L291" class="LineNr">291 </span>    <span class="subxComment"># c1 = f-&gt;data[f-&gt;read]</span>
+<span id="L292" class="LineNr">292 </span>    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    6/base/esi  1/index/ecx  <span class="Normal"> . </span>          0/r32/AL    0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *(esi+ecx+12) to AL</span>
+<span id="L293" class="LineNr">293 </span>    <span class="subxComment"># if (c1 == '\n') break</span>
+<span id="L294" class="LineNr">294 </span>    3d/compare-eax-and  0xa/imm32/newline
+<span id="L295" class="LineNr">295 </span>    74/jump-if-=  $next-stream-line-equal?:<span class="Constant">break</span>/disp8
+<span id="L296" class="LineNr">296 </span>    <span class="subxComment"># if (currs &gt;= s-&gt;size) return false</span>
+<span id="L297" class="LineNr">297 </span>    3b/compare                      0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare edx with *edi</span>
+<span id="L298" class="LineNr">298 </span>    7d/jump-if-&gt;=  $next-stream-line-equal?:false/disp8
+<span id="L299" class="LineNr">299 </span>    <span class="subxComment"># c2 = s-&gt;data[currs]</span>
+<span id="L300" class="LineNr">300 </span>    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    7/base/edi  2/index/edx  <span class="Normal"> . </span>          3/r32/BL    4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *(edi+edx+4) to BL</span>
+<span id="L301" class="LineNr">301 </span>    <span class="subxComment"># if (c1 != c2) return false</span>
+<span id="L302" class="LineNr">302 </span>    39/compare                      3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare eax and ebx</span>
+<span id="L303" class="LineNr">303 </span>    75/jump-if-!=  $next-stream-line-equal?:false/disp8
+<span id="L304" class="LineNr">304 </span>    <span class="subxComment"># ++currf</span>
+<span id="L305" class="LineNr">305 </span>    41/increment-ecx
+<span id="L306" class="LineNr">306 </span>    <span class="subxComment"># ++currs</span>
+<span id="L307" class="LineNr">307 </span>    42/increment-edx
+<span id="L308" class="LineNr">308 </span>    eb/jump $next-stream-line-equal?:<span class="Constant">loop</span>/disp8
+<span id="L309" class="LineNr">309 </span><span class="Constant">$next-stream-line-equal?:break</span>:
+<span id="L310" class="LineNr">310 </span>    <span class="subxComment"># ++currf</span>
+<span id="L311" class="LineNr">311 </span>    41/increment-ecx
+<span id="L312" class="LineNr">312 </span>    <span class="subxComment"># if (currs &gt;= s-&gt;size) return true</span>
+<span id="L313" class="LineNr">313 </span>    3b/compare                      0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare edx with *edi</span>
+<span id="L314" class="LineNr">314 </span>    7c/jump-if-&lt;  $next-stream-line-equal?:false/disp8
+<span id="L315" class="LineNr">315 </span><span class="Constant">$next-stream-line-equal?:true</span>:
+<span id="L316" class="LineNr">316 </span>    b8/copy-to-eax  1/imm32
+<span id="L317" class="LineNr">317 </span>    <span class="subxComment"># persist f-&gt;read on success</span>
+<span id="L318" class="LineNr">318 </span>    89/copy                         1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy ecx to *(esi+4)</span>
+<span id="L319" class="LineNr">319 </span>    eb/jump  $next-stream-line-equal?:end/disp8
+<span id="L320" class="LineNr">320 </span><span class="Constant">$next-stream-line-equal?:false</span>:
+<span id="L321" class="LineNr">321 </span>    b8/copy-to-eax  0/imm32
+<span id="L322" class="LineNr">322 </span><span class="Constant">$next-stream-line-equal?:end</span>:
+<span id="L323" class="LineNr">323 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L324" class="LineNr">324 </span>    5f/pop-to-edi
+<span id="L325" class="LineNr">325 </span>    5e/pop-to-esi
+<span id="L326" class="LineNr">326 </span>    5a/pop-to-edx
+<span id="L327" class="LineNr">327 </span>    59/pop-to-ecx
+<span id="L328" class="LineNr">328 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L329" class="LineNr">329 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L330" class="LineNr">330 </span>    5d/pop-to-ebp
+<span id="L331" class="LineNr">331 </span>    c3/return
+<span id="L332" class="LineNr">332 </span>
+<span id="L333" class="LineNr">333 </span><span class="subxTest">test-next-stream-line-equal-stops-at-newline</span>:
+<span id="L334" class="LineNr">334 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L335" class="LineNr">335 </span>    55/push-ebp
+<span id="L336" class="LineNr">336 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L337" class="LineNr">337 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L338" class="LineNr">338 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L339" class="LineNr">339 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L340" class="LineNr">340 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L341" class="LineNr">341 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L342" class="LineNr">342 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L343" class="LineNr">343 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L344" class="LineNr">344 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef&quot;)</span>
+<span id="L345" class="LineNr">345 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L346" class="LineNr">346 </span>    68/push  <span class="Constant">&quot;Abc\ndef&quot;</span>/imm32
+<span id="L347" class="LineNr">347 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L348" class="LineNr">348 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L349" class="LineNr">349 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L350" class="LineNr">350 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L351" class="LineNr">351 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L352" class="LineNr">352 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;Abc&quot;)</span>
+<span id="L353" class="LineNr">353 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L354" class="LineNr">354 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L355" class="LineNr">355 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L356" class="LineNr">356 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L357" class="LineNr">357 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L358" class="LineNr">358 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L359" class="LineNr">359 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L360" class="LineNr">360 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L361" class="LineNr">361 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L362" class="LineNr">362 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-stops-at-newline&quot;</span>/imm32
+<span id="L363" class="LineNr">363 </span>    68/push  1/imm32
+<span id="L364" class="LineNr">364 </span>    50/push-eax
+<span id="L365" class="LineNr">365 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L366" class="LineNr">366 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L367" class="LineNr">367 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L368" class="LineNr">368 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L369" class="LineNr">369 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L370" class="LineNr">370 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L371" class="LineNr">371 </span>    5d/pop-to-ebp
+<span id="L372" class="LineNr">372 </span>    c3/return
+<span id="L373" class="LineNr">373 </span>
+<span id="L374" class="LineNr">374 </span><span class="subxTest">test-next-stream-line-equal-stops-at-newline-2</span>:
+<span id="L375" class="LineNr">375 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L376" class="LineNr">376 </span>    55/push-ebp
+<span id="L377" class="LineNr">377 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L378" class="LineNr">378 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L379" class="LineNr">379 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L380" class="LineNr">380 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L381" class="LineNr">381 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L382" class="LineNr">382 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L383" class="LineNr">383 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L384" class="LineNr">384 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L385" class="LineNr">385 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef&quot;)</span>
+<span id="L386" class="LineNr">386 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L387" class="LineNr">387 </span>    68/push  <span class="Constant">&quot;Abc\ndef&quot;</span>/imm32
+<span id="L388" class="LineNr">388 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L389" class="LineNr">389 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L390" class="LineNr">390 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L391" class="LineNr">391 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L392" class="LineNr">392 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L393" class="LineNr">393 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;def&quot;)</span>
+<span id="L394" class="LineNr">394 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L395" class="LineNr">395 </span>    68/push  <span class="Constant">&quot;def&quot;</span>/imm32
+<span id="L396" class="LineNr">396 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L397" class="LineNr">397 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L398" class="LineNr">398 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L399" class="LineNr">399 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L400" class="LineNr">400 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L401" class="LineNr">401 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L402" class="LineNr">402 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L403" class="LineNr">403 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-stops-at-newline-2&quot;</span>/imm32
+<span id="L404" class="LineNr">404 </span>    68/push  0/imm32
+<span id="L405" class="LineNr">405 </span>    50/push-eax
+<span id="L406" class="LineNr">406 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L407" class="LineNr">407 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L408" class="LineNr">408 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L409" class="LineNr">409 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L410" class="LineNr">410 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L411" class="LineNr">411 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L412" class="LineNr">412 </span>    5d/pop-to-ebp
+<span id="L413" class="LineNr">413 </span>    c3/return
+<span id="L414" class="LineNr">414 </span>
+<span id="L415" class="LineNr">415 </span><span class="subxTest">test-next-stream-line-equal-skips-newline</span>:
+<span id="L416" class="LineNr">416 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L417" class="LineNr">417 </span>    55/push-ebp
+<span id="L418" class="LineNr">418 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L419" class="LineNr">419 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L420" class="LineNr">420 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L421" class="LineNr">421 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L422" class="LineNr">422 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L423" class="LineNr">423 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L424" class="LineNr">424 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L425" class="LineNr">425 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L426" class="LineNr">426 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef\n&quot;)</span>
+<span id="L427" class="LineNr">427 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L428" class="LineNr">428 </span>    68/push  <span class="Constant">&quot;Abc\ndef\n&quot;</span>/imm32
+<span id="L429" class="LineNr">429 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L430" class="LineNr">430 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L431" class="LineNr">431 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L432" class="LineNr">432 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L433" class="LineNr">433 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L434" class="LineNr">434 </span>    <span class="subxComment"># next-stream-line-equal?(_test-stream, &quot;Abc&quot;)</span>
+<span id="L435" class="LineNr">435 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L436" class="LineNr">436 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L437" class="LineNr">437 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L438" class="LineNr">438 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L439" class="LineNr">439 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L440" class="LineNr">440 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L441" class="LineNr">441 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L442" class="LineNr">442 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;def&quot;)</span>
+<span id="L443" class="LineNr">443 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L444" class="LineNr">444 </span>    68/push  <span class="Constant">&quot;def&quot;</span>/imm32
+<span id="L445" class="LineNr">445 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L446" class="LineNr">446 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L447" class="LineNr">447 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L448" class="LineNr">448 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L449" class="LineNr">449 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L450" class="LineNr">450 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L451" class="LineNr">451 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L452" class="LineNr">452 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-skips-newline&quot;</span>/imm32
+<span id="L453" class="LineNr">453 </span>    68/push  1/imm32
+<span id="L454" class="LineNr">454 </span>    50/push-eax
+<span id="L455" class="LineNr">455 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L456" class="LineNr">456 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L457" class="LineNr">457 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L458" class="LineNr">458 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L459" class="LineNr">459 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L460" class="LineNr">460 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L461" class="LineNr">461 </span>    5d/pop-to-ebp
+<span id="L462" class="LineNr">462 </span>    c3/return
+<span id="L463" class="LineNr">463 </span>
+<span id="L464" class="LineNr">464 </span><span class="subxTest">test-next-stream-line-equal-handles-final-line</span>:
+<span id="L465" class="LineNr">465 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L466" class="LineNr">466 </span>    55/push-ebp
+<span id="L467" class="LineNr">467 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L468" class="LineNr">468 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L469" class="LineNr">469 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L470" class="LineNr">470 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L471" class="LineNr">471 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L472" class="LineNr">472 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L473" class="LineNr">473 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L474" class="LineNr">474 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L475" class="LineNr">475 </span>    <span class="subxComment"># write(_test-stream, &quot;Abc\ndef&quot;)</span>
+<span id="L476" class="LineNr">476 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L477" class="LineNr">477 </span>    68/push  <span class="Constant">&quot;Abc\ndef&quot;</span>/imm32
+<span id="L478" class="LineNr">478 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L479" class="LineNr">479 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L480" class="LineNr">480 </span>    e8/call  <a href='108write.subx.html#L11'>write</a>/disp32
+<span id="L481" class="LineNr">481 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L482" class="LineNr">482 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L483" class="LineNr">483 </span>    <span class="subxComment"># next-stream-line-equal?(_test-stream, &quot;Abc&quot;)</span>
+<span id="L484" class="LineNr">484 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L485" class="LineNr">485 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
+<span id="L486" class="LineNr">486 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L487" class="LineNr">487 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L488" class="LineNr">488 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L489" class="LineNr">489 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L490" class="LineNr">490 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L491" class="LineNr">491 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;def&quot;)</span>
+<span id="L492" class="LineNr">492 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L493" class="LineNr">493 </span>    68/push  <span class="Constant">&quot;def&quot;</span>/imm32
+<span id="L494" class="LineNr">494 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L495" class="LineNr">495 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L496" class="LineNr">496 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L497" class="LineNr">497 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L498" class="LineNr">498 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L499" class="LineNr">499 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L500" class="LineNr">500 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L501" class="LineNr">501 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-skips-newline&quot;</span>/imm32
+<span id="L502" class="LineNr">502 </span>    68/push  1/imm32
+<span id="L503" class="LineNr">503 </span>    50/push-eax
+<span id="L504" class="LineNr">504 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L505" class="LineNr">505 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L506" class="LineNr">506 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L507" class="LineNr">507 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L508" class="LineNr">508 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L509" class="LineNr">509 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L510" class="LineNr">510 </span>    5d/pop-to-ebp
+<span id="L511" class="LineNr">511 </span>    c3/return
+<span id="L512" class="LineNr">512 </span>
+<span id="L513" class="LineNr">513 </span><span class="subxTest">test-next-stream-line-equal-always-fails-after-Eof</span>:
+<span id="L514" class="LineNr">514 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L515" class="LineNr">515 </span>    55/push-ebp
+<span id="L516" class="LineNr">516 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L517" class="LineNr">517 </span>    <span class="subxComment"># clear-stream(_test-stream)</span>
+<span id="L518" class="LineNr">518 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L519" class="LineNr">519 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L520" class="LineNr">520 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L521" class="LineNr">521 </span>    e8/call  <a href='106stream.subx.html#L20'>clear-stream</a>/disp32
+<span id="L522" class="LineNr">522 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L523" class="LineNr">523 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L524" class="LineNr">524 </span>    <span class="subxComment"># write nothing</span>
+<span id="L525" class="LineNr">525 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;&quot;)</span>
+<span id="L526" class="LineNr">526 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L527" class="LineNr">527 </span>    68/push  <span class="Constant">&quot;&quot;</span>/imm32
+<span id="L528" class="LineNr">528 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L529" class="LineNr">529 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L530" class="LineNr">530 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L531" class="LineNr">531 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L532" class="LineNr">532 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L533" class="LineNr">533 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L534" class="LineNr">534 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L535" class="LineNr">535 </span>    68/push  <span class="Constant">&quot;F - test-next-stream-line-equal-always-fails-after-Eof&quot;</span>/imm32
+<span id="L536" class="LineNr">536 </span>    68/push  1/imm32
+<span id="L537" class="LineNr">537 </span>    50/push-eax
+<span id="L538" class="LineNr">538 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L539" class="LineNr">539 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L540" class="LineNr">540 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L541" class="LineNr">541 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L542" class="LineNr">542 </span>    <span class="subxComment"># eax = next-stream-line-equal?(_test-stream, &quot;&quot;)</span>
+<span id="L543" class="LineNr">543 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L544" class="LineNr">544 </span>    68/push  <span class="Constant">&quot;&quot;</span>/imm32
+<span id="L545" class="LineNr">545 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
+<span id="L546" class="LineNr">546 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L547" class="LineNr">547 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L548" class="LineNr">548 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L549" class="LineNr">549 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L550" class="LineNr">550 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L551" class="LineNr">551 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L552" class="LineNr">552 </span>    68/push  <span class="Constant">&quot;F - <a href='109stream-equal.subx.html#L513'>test-next-stream-line-equal-always-fails-after-Eof</a>/2&quot;</span>/imm32
+<span id="L553" class="LineNr">553 </span>    68/push  1/imm32
+<span id="L554" class="LineNr">554 </span>    50/push-eax
+<span id="L555" class="LineNr">555 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L556" class="LineNr">556 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L557" class="LineNr">557 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L558" class="LineNr">558 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L559" class="LineNr">559 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L560" class="LineNr">560 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L561" class="LineNr">561 </span>    5d/pop-to-ebp
+<span id="L562" class="LineNr">562 </span>    c3/return
+<span id="L563" class="LineNr">563 </span>
+<span id="L564" class="LineNr">564 </span><span class="subxComment"># helper for later tests</span>
+<span id="L565" class="LineNr">565 </span><span class="subxFunction">check-next-stream-line-equal</span>:  <span class="subxComment"># f: (addr stream byte), s: (addr array byte), msg: (addr array byte)</span>
+<span id="L566" class="LineNr">566 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L567" class="LineNr">567 </span>    55/push-ebp
+<span id="L568" class="LineNr">568 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L569" class="LineNr">569 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L570" class="LineNr">570 </span>    50/push-eax
+<span id="L571" class="LineNr">571 </span>    <span class="subxComment"># eax = next-stream-line-equal?(f, s)</span>
+<span id="L572" class="LineNr">572 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L573" class="LineNr">573 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+12)</span>
+<span id="L574" class="LineNr">574 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+8)</span>
+<span id="L575" class="LineNr">575 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L576" class="LineNr">576 </span>    e8/call  <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a>/disp32
+<span id="L577" class="LineNr">577 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L578" class="LineNr">578 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L579" class="LineNr">579 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L580" class="LineNr">580 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L581" class="LineNr">581 </span>    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          0x10/disp8     <span class="Normal"> . </span>                <span class="subxComment"># push *(ebp+16)</span>
+<span id="L582" class="LineNr">582 </span>    68/push  1/imm32
+<span id="L583" class="LineNr">583 </span>    50/push-eax
+<span id="L584" class="LineNr">584 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L585" class="LineNr">585 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L586" class="LineNr">586 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L587" class="LineNr">587 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L588" class="LineNr">588 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L589" class="LineNr">589 </span>    58/pop-to-eax
+<span id="L590" class="LineNr">590 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L591" class="LineNr">591 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L592" class="LineNr">592 </span>    5d/pop-to-ebp
+<span id="L593" class="LineNr">593 </span>    c3/return
+<span id="L594" class="LineNr">594 </span>
+<span id="L595" class="LineNr">595 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/112read-byte.subx.html b/html/baremetal/112read-byte.subx.html
index 1ae80edd..a853654b 100644
--- a/html/baremetal/112read-byte.subx.html
+++ b/html/baremetal/112read-byte.subx.html
@@ -16,9 +16,10 @@ a { color:inherit; }
 * { font-size:12pt; font-size: 1em; }
 .subxComment { color: #005faf; }
 .subxS1Comment { color: #0000af; }
-.subxS2Comment { color: #8a8a8a; }
+.subxMinorFunction { color: #875f5f; }
 .LineNr { }
 .Constant { color: #008787; }
+.subxS2Comment { color: #8a8a8a; }
 .subxFunction { color: #af5f00; text-decoration: underline; }
 .Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; }
 -->
@@ -56,54 +57,129 @@ if ('onhashchange' in window) {
 <body onload='JumpToLine();'>
 <a href='https://github.com/akkartik/mu/blob/main/baremetal/112read-byte.subx'>https://github.com/akkartik/mu/blob/main/baremetal/112read-byte.subx</a>
 <pre id='vimCodeElement'>
-<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Read a single byte from a stream.</span>
-<span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span>
-<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># We need to do this in machine code because streams need to be opaque types,</span>
-<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># and we don't yet support opaque types in Mu.</span>
-<span id="L5" class="LineNr"> 5 </span>
-<span id="L6" class="LineNr"> 6 </span>== code
-<span id="L7" class="LineNr"> 7 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
-<span id="L8" class="LineNr"> 8 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
-<span id="L9" class="LineNr"> 9 </span><span class="subxS1Comment"># . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
-<span id="L10" class="LineNr">10 </span>
-<span id="L11" class="LineNr">11 </span><span class="subxComment"># Return next byte value in eax, with top 3 bytes cleared.</span>
-<span id="L12" class="LineNr">12 </span><span class="subxComment"># Abort on reaching end of stream.</span>
-<span id="L13" class="LineNr">13 </span><span class="subxFunction">read-byte</span>:  <span class="subxComment"># s: (addr stream byte) -&gt; result/eax: byte</span>
-<span id="L14" class="LineNr">14 </span>    <span class="subxS1Comment"># . prologue</span>
-<span id="L15" class="LineNr">15 </span>    55/push-ebp
-<span id="L16" class="LineNr">16 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
-<span id="L17" class="LineNr">17 </span>    <span class="subxS1Comment"># . save registers</span>
-<span id="L18" class="LineNr">18 </span>    51/push-ecx
-<span id="L19" class="LineNr">19 </span>    56/push-esi
-<span id="L20" class="LineNr">20 </span>    <span class="subxComment"># esi = s</span>
-<span id="L21" class="LineNr">21 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to esi</span>
-<span id="L22" class="LineNr">22 </span>    <span class="subxComment"># ecx = s-&gt;read</span>
-<span id="L23" class="LineNr">23 </span>    8b/copy                         1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(esi+4) to ecx</span>
-<span id="L24" class="LineNr">24 </span>    <span class="subxComment"># if (f-&gt;read &gt;= f-&gt;write) abort</span>
-<span id="L25" class="LineNr">25 </span>    3b/compare                      0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with *esi</span>
-<span id="L26" class="LineNr">26 </span>    0f 8d/jump-if-&gt;=  $read-byte:abort/disp32
-<span id="L27" class="LineNr">27 </span>    <span class="subxComment"># result = f-&gt;data[f-&gt;read]</span>
-<span id="L28" class="LineNr">28 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
-<span id="L29" class="LineNr">29 </span>    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    6/base/esi  1/index/ecx  <span class="Normal"> . </span>          0/r32/AL    0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *(esi+ecx+12) to AL</span>
-<span id="L30" class="LineNr">30 </span>    <span class="subxComment"># ++f-&gt;read</span>
-<span id="L31" class="LineNr">31 </span>    ff          0/subop/increment   1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># increment *(esi+4)</span>
-<span id="L32" class="LineNr">32 </span><span class="Constant">$read-byte:end</span>:
-<span id="L33" class="LineNr">33 </span>    <span class="subxS1Comment"># . restore registers</span>
-<span id="L34" class="LineNr">34 </span>    5e/pop-to-esi
-<span id="L35" class="LineNr">35 </span>    59/pop-to-ecx
-<span id="L36" class="LineNr">36 </span>    <span class="subxS1Comment"># . epilogue</span>
-<span id="L37" class="LineNr">37 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
-<span id="L38" class="LineNr">38 </span>    5d/pop-to-ebp
-<span id="L39" class="LineNr">39 </span>    c3/return
-<span id="L40" class="LineNr">40 </span>
-<span id="L41" class="LineNr">41 </span><span class="Constant">$read-byte:abort</span>:
-<span id="L42" class="LineNr">42 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;read-byte: empty stream&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L43" class="LineNr">43 </span>    {
-<span id="L44" class="LineNr">44 </span>      eb/jump <span class="Constant">loop</span>/disp8
-<span id="L45" class="LineNr">45 </span>    }
-<span id="L46" class="LineNr">46 </span>    <span class="subxComment"># never gets here</span>
-<span id="L47" class="LineNr">47 </span>
-<span id="L48" class="LineNr">48 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
+<span id="L1" class="LineNr">  1 </span><span class="subxComment"># Read a single byte from a stream.</span>
+<span id="L2" class="LineNr">  2 </span><span class="subxComment">#</span>
+<span id="L3" class="LineNr">  3 </span><span class="subxComment"># We need to do this in machine code because streams need to be opaque types,</span>
+<span id="L4" class="LineNr">  4 </span><span class="subxComment"># and we don't yet support opaque types in Mu.</span>
+<span id="L5" class="LineNr">  5 </span>
+<span id="L6" class="LineNr">  6 </span>== code
+<span id="L7" class="LineNr">  7 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
+<span id="L8" class="LineNr">  8 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L9" class="LineNr">  9 </span><span class="subxS1Comment"># . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
+<span id="L10" class="LineNr"> 10 </span>
+<span id="L11" class="LineNr"> 11 </span><span class="subxComment"># Return next byte value in eax, with top 3 bytes cleared.</span>
+<span id="L12" class="LineNr"> 12 </span><span class="subxComment"># Abort on reaching end of stream.</span>
+<span id="L13" class="LineNr"> 13 </span><span class="subxFunction">read-byte</span>:  <span class="subxComment"># s: (addr stream byte) -&gt; result/eax: byte</span>
+<span id="L14" class="LineNr"> 14 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L15" class="LineNr"> 15 </span>    55/push-ebp
+<span id="L16" class="LineNr"> 16 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L18" class="LineNr"> 18 </span>    51/push-ecx
+<span id="L19" class="LineNr"> 19 </span>    56/push-esi
+<span id="L20" class="LineNr"> 20 </span>    <span class="subxComment"># esi = s</span>
+<span id="L21" class="LineNr"> 21 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to esi</span>
+<span id="L22" class="LineNr"> 22 </span>    <span class="subxComment"># ecx = s-&gt;read</span>
+<span id="L23" class="LineNr"> 23 </span>    8b/copy                         1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(esi+4) to ecx</span>
+<span id="L24" class="LineNr"> 24 </span>    <span class="subxComment"># if (f-&gt;read &gt;= f-&gt;write) abort</span>
+<span id="L25" class="LineNr"> 25 </span>    3b/compare                      0/mod/indirect  6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with *esi</span>
+<span id="L26" class="LineNr"> 26 </span>    0f 8d/jump-if-&gt;=  $read-byte:<a href='501draw-text.mu.html#L519'>abort</a>/disp32
+<span id="L27" class="LineNr"> 27 </span>    <span class="subxComment"># result = f-&gt;data[f-&gt;read]</span>
+<span id="L28" class="LineNr"> 28 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
+<span id="L29" class="LineNr"> 29 </span>    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    6/base/esi  1/index/ecx  <span class="Normal"> . </span>          0/r32/AL    0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *(esi+ecx+12) to AL</span>
+<span id="L30" class="LineNr"> 30 </span>    <span class="subxComment"># ++f-&gt;read</span>
+<span id="L31" class="LineNr"> 31 </span>    ff          0/subop/increment   1/mod/*+disp8   6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>          4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># increment *(esi+4)</span>
+<span id="L32" class="LineNr"> 32 </span><span class="Constant">$read-byte:end</span>:
+<span id="L33" class="LineNr"> 33 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L34" class="LineNr"> 34 </span>    5e/pop-to-esi
+<span id="L35" class="LineNr"> 35 </span>    59/pop-to-ecx
+<span id="L36" class="LineNr"> 36 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L37" class="LineNr"> 37 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L38" class="LineNr"> 38 </span>    5d/pop-to-ebp
+<span id="L39" class="LineNr"> 39 </span>    c3/return
+<span id="L40" class="LineNr"> 40 </span>
+<span id="L41" class="LineNr"> 41 </span><span class="Constant">$read-byte:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L42" class="LineNr"> 42 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;read-byte: empty stream&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L43" class="LineNr"> 43 </span>    {
+<span id="L44" class="LineNr"> 44 </span>      eb/jump <span class="Constant">loop</span>/disp8
+<span id="L45" class="LineNr"> 45 </span>    }
+<span id="L46" class="LineNr"> 46 </span>    <span class="subxComment"># never gets here</span>
+<span id="L47" class="LineNr"> 47 </span>
+<span id="L48" class="LineNr"> 48 </span>== data
+<span id="L49" class="LineNr"> 49 </span>
+<span id="L50" class="LineNr"> 50 </span><span class="subxMinorFunction">_test-input-stream</span>:  <span class="subxComment"># (stream byte)</span>
+<span id="L51" class="LineNr"> 51 </span>    <span class="subxComment"># current write index</span>
+<span id="L52" class="LineNr"> 52 </span>    0/imm32
+<span id="L53" class="LineNr"> 53 </span>    <span class="subxComment"># current read index</span>
+<span id="L54" class="LineNr"> 54 </span>    0/imm32
+<span id="L55" class="LineNr"> 55 </span>    <span class="subxComment"># size</span>
+<span id="L56" class="LineNr"> 56 </span>    0x400/imm32  <span class="subxComment"># 1024 bytes</span>
+<span id="L57" class="LineNr"> 57 </span>    <span class="subxComment"># data (64 lines x 16 bytes/line)</span>
+<span id="L58" class="LineNr"> 58 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L59" class="LineNr"> 59 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L60" class="LineNr"> 60 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L61" class="LineNr"> 61 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L62" class="LineNr"> 62 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L63" class="LineNr"> 63 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L64" class="LineNr"> 64 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L65" class="LineNr"> 65 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L66" class="LineNr"> 66 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L67" class="LineNr"> 67 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L68" class="LineNr"> 68 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L69" class="LineNr"> 69 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L70" class="LineNr"> 70 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L71" class="LineNr"> 71 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L72" class="LineNr"> 72 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L73" class="LineNr"> 73 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L74" class="LineNr"> 74 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L75" class="LineNr"> 75 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L76" class="LineNr"> 76 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L77" class="LineNr"> 77 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L78" class="LineNr"> 78 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L79" class="LineNr"> 79 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L80" class="LineNr"> 80 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L81" class="LineNr"> 81 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L82" class="LineNr"> 82 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L83" class="LineNr"> 83 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L84" class="LineNr"> 84 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L85" class="LineNr"> 85 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L86" class="LineNr"> 86 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L87" class="LineNr"> 87 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L88" class="LineNr"> 88 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L89" class="LineNr"> 89 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L90" class="LineNr"> 90 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L91" class="LineNr"> 91 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L92" class="LineNr"> 92 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L93" class="LineNr"> 93 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L94" class="LineNr"> 94 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L95" class="LineNr"> 95 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L96" class="LineNr"> 96 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L97" class="LineNr"> 97 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L98" class="LineNr"> 98 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L99" class="LineNr"> 99 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L100" class="LineNr">100 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L101" class="LineNr">101 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L102" class="LineNr">102 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L103" class="LineNr">103 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L104" class="LineNr">104 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L105" class="LineNr">105 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L106" class="LineNr">106 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L107" class="LineNr">107 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L108" class="LineNr">108 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L109" class="LineNr">109 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L110" class="LineNr">110 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L111" class="LineNr">111 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L112" class="LineNr">112 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L113" class="LineNr">113 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L114" class="LineNr">114 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L115" class="LineNr">115 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L116" class="LineNr">116 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L117" class="LineNr">117 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L118" class="LineNr">118 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L119" class="LineNr">119 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L120" class="LineNr">120 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L121" class="LineNr">121 </span>    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L122" class="LineNr">122 </span>
+<span id="L123" class="LineNr">123 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/115write-byte.subx.html b/html/baremetal/115write-byte.subx.html
index 463ddc4d..002dc0c9 100644
--- a/html/baremetal/115write-byte.subx.html
+++ b/html/baremetal/115write-byte.subx.html
@@ -82,7 +82,7 @@ if ('onhashchange' in window) {
 <span id="L22" class="LineNr">22 </span>    8b/copy                         0/mod/indirect  7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *edi to ecx</span>
 <span id="L23" class="LineNr">23 </span>    <span class="subxComment"># if (f-&gt;write &gt;= f-&gt;size) abort</span>
 <span id="L24" class="LineNr">24 </span>    3b/compare                      1/mod/*+disp8   7/rm32/edi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with *(edi+8)</span>
-<span id="L25" class="LineNr">25 </span>    7d/jump-if-&gt;=  $append-byte:abort/disp8
+<span id="L25" class="LineNr">25 </span>    7d/jump-if-&gt;=  $append-byte:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L26" class="LineNr">26 </span><span class="Constant">$append-byte:to-stream</span>:
 <span id="L27" class="LineNr">27 </span>    <span class="subxComment"># write to stream</span>
 <span id="L28" class="LineNr">28 </span>    <span class="subxComment"># f-&gt;data[f-&gt;write] = LSB(n)</span>
@@ -100,8 +100,8 @@ if ('onhashchange' in window) {
 <span id="L40" class="LineNr">40 </span>    5d/pop-to-ebp
 <span id="L41" class="LineNr">41 </span>    c3/return
 <span id="L42" class="LineNr">42 </span>
-<span id="L43" class="LineNr">43 </span><span class="Constant">$append-byte:abort</span>:
-<span id="L44" class="LineNr">44 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;append-byte: out of space\n&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L43" class="LineNr">43 </span><span class="Constant">$append-byte:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L44" class="LineNr">44 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;append-byte: out of space\n&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L45" class="LineNr">45 </span>    {
 <span id="L46" class="LineNr">46 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L47" class="LineNr">47 </span>    }
@@ -131,7 +131,7 @@ if ('onhashchange' in window) {
 <span id="L71" class="LineNr">71 </span>    68/push  <span class="Constant">&quot;A&quot;</span>/imm32
 <span id="L72" class="LineNr">72 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L73" class="LineNr">73 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L74" class="LineNr">74 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L74" class="LineNr">74 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L75" class="LineNr">75 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L76" class="LineNr">76 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L77" class="LineNr">77 </span>    <span class="subxS1Comment"># . end</span>
diff --git a/html/baremetal/117write-int-hex.subx.html b/html/baremetal/117write-int-hex.subx.html
index 00b68fdd..f0800cbb 100644
--- a/html/baremetal/117write-int-hex.subx.html
+++ b/html/baremetal/117write-int-hex.subx.html
@@ -143,7 +143,7 @@ if ('onhashchange' in window) {
 <span id="L83" class="LineNr"> 83 </span>    68/push  <span class="Constant">&quot;0a&quot;</span>/imm32
 <span id="L84" class="LineNr"> 84 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L85" class="LineNr"> 85 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L86" class="LineNr"> 86 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L86" class="LineNr"> 86 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L87" class="LineNr"> 87 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L88" class="LineNr"> 88 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L89" class="LineNr"> 89 </span>    <span class="subxS1Comment"># . end</span>
@@ -253,7 +253,7 @@ if ('onhashchange' in window) {
 <span id="L193" class="LineNr">193 </span>    68/push  <span class="Constant">&quot;0x008899aa&quot;</span>/imm32
 <span id="L194" class="LineNr">194 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L195" class="LineNr">195 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L196" class="LineNr">196 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L196" class="LineNr">196 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L197" class="LineNr">197 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L198" class="LineNr">198 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L199" class="LineNr">199 </span>    <span class="subxS1Comment"># . end</span>
diff --git a/html/baremetal/118parse-hex-int.subx.html b/html/baremetal/118parse-hex-int.subx.html
new file mode 100644
index 00000000..6b441120
--- /dev/null
+++ b/html/baremetal/118parse-hex-int.subx.html
@@ -0,0 +1,960 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/118parse-hex-int.subx</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.subxComment { color: #005faf; }
+.subxS1Comment { color: #0000af; }
+.subxS2Comment { color: #8a8a8a; }
+.LineNr { }
+.Constant { color: #008787; }
+.subxTest { color: #5f8700; }
+.subxFunction { color: #af5f00; text-decoration: underline; }
+.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/118parse-hex-int.subx'>https://github.com/akkartik/mu/blob/main/baremetal/118parse-hex-int.subx</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="subxComment"># some utilities for converting numbers from hex</span>
+<span id="L2" class="LineNr">  2 </span><span class="subxComment"># lowercase letters only for now</span>
+<span id="L3" class="LineNr">  3 </span>
+<span id="L4" class="LineNr">  4 </span>== code
+<span id="L5" class="LineNr">  5 </span><span class="subxComment">#   instruction                     effective address                                                   register    displacement    immediate</span>
+<span id="L6" class="LineNr">  6 </span><span class="subxS1Comment"># . op          subop               mod             rm32          base        index         scale       r32</span>
+<span id="L7" class="LineNr">  7 </span><span class="subxS1Comment"># . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes</span>
+<span id="L8" class="LineNr">  8 </span>
+<span id="L9" class="LineNr">  9 </span><span class="subxFunction">is-hex-int?</span>:  <span class="subxComment"># in: (addr slice) -&gt; result/eax: boolean</span>
+<span id="L10" class="LineNr"> 10 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L11" class="LineNr"> 11 </span>    55/push-ebp
+<span id="L12" class="LineNr"> 12 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L13" class="LineNr"> 13 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L14" class="LineNr"> 14 </span>    51/push-ecx
+<span id="L15" class="LineNr"> 15 </span>    52/push-edx
+<span id="L16" class="LineNr"> 16 </span>    53/push-ebx
+<span id="L17" class="LineNr"> 17 </span>    <span class="subxComment"># ecx = s</span>
+<span id="L18" class="LineNr"> 18 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to ecx</span>
+<span id="L19" class="LineNr"> 19 </span>    <span class="subxComment"># edx = s-&gt;end</span>
+<span id="L20" class="LineNr"> 20 </span>    8b/copy                         1/mod/*+disp8   1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ecx+4) to edx</span>
+<span id="L21" class="LineNr"> 21 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = s-&gt;start</span>
+<span id="L22" class="LineNr"> 22 </span>    8b/copy                         0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *ecx to ecx</span>
+<span id="L23" class="LineNr"> 23 </span>    <span class="subxComment"># if s is empty return false</span>
+<span id="L24" class="LineNr"> 24 </span>    b8/copy-to-eax  0/imm32/false
+<span id="L25" class="LineNr"> 25 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
+<span id="L26" class="LineNr"> 26 </span>    73/jump-if-addr&gt;=  $is-hex-int?:end/disp8
+<span id="L27" class="LineNr"> 27 </span>    <span class="subxComment"># skip past leading '-'</span>
+<span id="L28" class="LineNr"> 28 </span>    <span class="subxS1Comment"># . if (*curr == '-') ++curr</span>
+<span id="L29" class="LineNr"> 29 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
+<span id="L30" class="LineNr"> 30 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/BL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to BL</span>
+<span id="L31" class="LineNr"> 31 </span>    81          7/subop/compare     3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x2d/imm32/-      <span class="subxComment"># compare ebx</span>
+<span id="L32" class="LineNr"> 32 </span>    75/jump-if-!=  $is-hex-int?:initial-0/disp8
+<span id="L33" class="LineNr"> 33 </span>    <span class="subxS1Comment"># . ++curr</span>
+<span id="L34" class="LineNr"> 34 </span>    41/increment-ecx
+<span id="L35" class="LineNr"> 35 </span>    <span class="subxComment"># skip past leading '0x'</span>
+<span id="L36" class="LineNr"> 36 </span><span class="Constant">$is-hex-int?:initial-0</span>:
+<span id="L37" class="LineNr"> 37 </span>    <span class="subxS1Comment"># . if (*curr != '0') jump to loop</span>
+<span id="L38" class="LineNr"> 38 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
+<span id="L39" class="LineNr"> 39 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/BL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to BL</span>
+<span id="L40" class="LineNr"> 40 </span>    81          7/subop/compare     3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x30/imm32/0      <span class="subxComment"># compare ebx</span>
+<span id="L41" class="LineNr"> 41 </span>    75/jump-if-!=  $is-hex-int?:<span class="Constant">loop</span>/disp8
+<span id="L42" class="LineNr"> 42 </span>    <span class="subxS1Comment"># . ++curr</span>
+<span id="L43" class="LineNr"> 43 </span>    41/increment-ecx
+<span id="L44" class="LineNr"> 44 </span><span class="Constant">$is-hex-int?:initial-0x</span>:
+<span id="L45" class="LineNr"> 45 </span>    <span class="subxS1Comment"># . if (curr &gt;= in-&gt;end) return true</span>
+<span id="L46" class="LineNr"> 46 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
+<span id="L47" class="LineNr"> 47 </span>    73/jump-if-addr&gt;=  $is-hex-int?:true/disp8
+<span id="L48" class="LineNr"> 48 </span>    <span class="subxS1Comment"># . if (*curr != 'x') jump to loop  # the previous '0' is still valid so doesn't need to be checked again</span>
+<span id="L49" class="LineNr"> 49 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
+<span id="L50" class="LineNr"> 50 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/BL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to BL</span>
+<span id="L51" class="LineNr"> 51 </span>    81          7/subop/compare     3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x78/imm32/x      <span class="subxComment"># compare ebx</span>
+<span id="L52" class="LineNr"> 52 </span>    75/jump-if-!=  $is-hex-int?:<span class="Constant">loop</span>/disp8
+<span id="L53" class="LineNr"> 53 </span>    <span class="subxS1Comment"># . ++curr</span>
+<span id="L54" class="LineNr"> 54 </span>    41/increment-ecx
+<span id="L55" class="LineNr"> 55 </span><span class="Constant">$is-hex-int?:loop</span>:
+<span id="L56" class="LineNr"> 56 </span>    <span class="subxComment"># if (curr &gt;= in-&gt;end) return true</span>
+<span id="L57" class="LineNr"> 57 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
+<span id="L58" class="LineNr"> 58 </span>    73/jump-if-addr&gt;=  $is-hex-int?:true/disp8
+<span id="L59" class="LineNr"> 59 </span>    <span class="subxComment"># var eax: boolean = is-hex-digit?(*curr)</span>
+<span id="L60" class="LineNr"> 60 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L61" class="LineNr"> 61 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to AL</span>
+<span id="L62" class="LineNr"> 62 </span>    50/push-eax
+<span id="L63" class="LineNr"> 63 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L64" class="LineNr"> 64 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L65" class="LineNr"> 65 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L66" class="LineNr"> 66 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L67" class="LineNr"> 67 </span>    <span class="subxComment"># if (eax == false) return false</span>
+<span id="L68" class="LineNr"> 68 </span>    3d/compare-eax-and  0/imm32/false
+<span id="L69" class="LineNr"> 69 </span>    74/jump-if-=  $is-hex-int?:end/disp8
+<span id="L70" class="LineNr"> 70 </span>    <span class="subxComment"># ++curr</span>
+<span id="L71" class="LineNr"> 71 </span>    41/increment-ecx
+<span id="L72" class="LineNr"> 72 </span>    <span class="subxComment"># loop</span>
+<span id="L73" class="LineNr"> 73 </span>    eb/jump  $is-hex-int?:<span class="Constant">loop</span>/disp8
+<span id="L74" class="LineNr"> 74 </span><span class="Constant">$is-hex-int?:true</span>:
+<span id="L75" class="LineNr"> 75 </span>    <span class="subxComment"># return true</span>
+<span id="L76" class="LineNr"> 76 </span>    b8/copy-to-eax  1/imm32/true
+<span id="L77" class="LineNr"> 77 </span><span class="Constant">$is-hex-int?:end</span>:
+<span id="L78" class="LineNr"> 78 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L79" class="LineNr"> 79 </span>    5b/pop-to-ebx
+<span id="L80" class="LineNr"> 80 </span>    5a/pop-to-edx
+<span id="L81" class="LineNr"> 81 </span>    59/pop-to-ecx
+<span id="L82" class="LineNr"> 82 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L83" class="LineNr"> 83 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L84" class="LineNr"> 84 </span>    5d/pop-to-ebp
+<span id="L85" class="LineNr"> 85 </span>    c3/return
+<span id="L86" class="LineNr"> 86 </span>
+<span id="L87" class="LineNr"> 87 </span><span class="subxTest">test-is-hex-int</span>:
+<span id="L88" class="LineNr"> 88 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L89" class="LineNr"> 89 </span>    55/push-ebp
+<span id="L90" class="LineNr"> 90 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L91" class="LineNr"> 91 </span>    <span class="subxComment"># (eax..ecx) = &quot;34&quot;</span>
+<span id="L92" class="LineNr"> 92 </span>    b8/copy-to-eax  <span class="Constant">&quot;34&quot;</span>/imm32
+<span id="L93" class="LineNr"> 93 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L94" class="LineNr"> 94 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L95" class="LineNr"> 95 </span>    05/add-to-eax  4/imm32
+<span id="L96" class="LineNr"> 96 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L97" class="LineNr"> 97 </span>    51/push-ecx
+<span id="L98" class="LineNr"> 98 </span>    50/push-eax
+<span id="L99" class="LineNr"> 99 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L100" class="LineNr">100 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L101" class="LineNr">101 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L102" class="LineNr">102 </span>    51/push-ecx
+<span id="L103" class="LineNr">103 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L104" class="LineNr">104 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L105" class="LineNr">105 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L106" class="LineNr">106 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L107" class="LineNr">107 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L108" class="LineNr">108 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L109" class="LineNr">109 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int&quot;</span>/imm32
+<span id="L110" class="LineNr">110 </span>    68/push  1/imm32/true
+<span id="L111" class="LineNr">111 </span>    50/push-eax
+<span id="L112" class="LineNr">112 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L113" class="LineNr">113 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L114" class="LineNr">114 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L115" class="LineNr">115 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L116" class="LineNr">116 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L117" class="LineNr">117 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L118" class="LineNr">118 </span>    5d/pop-to-ebp
+<span id="L119" class="LineNr">119 </span>    c3/return
+<span id="L120" class="LineNr">120 </span>
+<span id="L121" class="LineNr">121 </span><span class="subxTest">test-is-hex-int-handles-letters</span>:
+<span id="L122" class="LineNr">122 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L123" class="LineNr">123 </span>    55/push-ebp
+<span id="L124" class="LineNr">124 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L125" class="LineNr">125 </span>    <span class="subxComment"># (eax..ecx) = &quot;34a&quot;</span>
+<span id="L126" class="LineNr">126 </span>    b8/copy-to-eax  <span class="Constant">&quot;34a&quot;</span>/imm32
+<span id="L127" class="LineNr">127 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L128" class="LineNr">128 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L129" class="LineNr">129 </span>    05/add-to-eax  4/imm32
+<span id="L130" class="LineNr">130 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L131" class="LineNr">131 </span>    51/push-ecx
+<span id="L132" class="LineNr">132 </span>    50/push-eax
+<span id="L133" class="LineNr">133 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L134" class="LineNr">134 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L135" class="LineNr">135 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L136" class="LineNr">136 </span>    51/push-ecx
+<span id="L137" class="LineNr">137 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L138" class="LineNr">138 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L139" class="LineNr">139 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L140" class="LineNr">140 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L141" class="LineNr">141 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L142" class="LineNr">142 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L143" class="LineNr">143 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-handles-letters&quot;</span>/imm32
+<span id="L144" class="LineNr">144 </span>    68/push  1/imm32/true
+<span id="L145" class="LineNr">145 </span>    50/push-eax
+<span id="L146" class="LineNr">146 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L147" class="LineNr">147 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L148" class="LineNr">148 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L149" class="LineNr">149 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L150" class="LineNr">150 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L151" class="LineNr">151 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L152" class="LineNr">152 </span>    5d/pop-to-ebp
+<span id="L153" class="LineNr">153 </span>    c3/return
+<span id="L154" class="LineNr">154 </span>
+<span id="L155" class="LineNr">155 </span><span class="subxTest">test-is-hex-int-with-trailing-char</span>:
+<span id="L156" class="LineNr">156 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L157" class="LineNr">157 </span>    55/push-ebp
+<span id="L158" class="LineNr">158 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L159" class="LineNr">159 </span>    <span class="subxComment"># (eax..ecx) = &quot;34q&quot;</span>
+<span id="L160" class="LineNr">160 </span>    b8/copy-to-eax  <span class="Constant">&quot;34q&quot;</span>/imm32
+<span id="L161" class="LineNr">161 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L162" class="LineNr">162 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L163" class="LineNr">163 </span>    05/add-to-eax  4/imm32
+<span id="L164" class="LineNr">164 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L165" class="LineNr">165 </span>    51/push-ecx
+<span id="L166" class="LineNr">166 </span>    50/push-eax
+<span id="L167" class="LineNr">167 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L168" class="LineNr">168 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L169" class="LineNr">169 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L170" class="LineNr">170 </span>    51/push-ecx
+<span id="L171" class="LineNr">171 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L172" class="LineNr">172 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L173" class="LineNr">173 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L174" class="LineNr">174 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L175" class="LineNr">175 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L176" class="LineNr">176 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L177" class="LineNr">177 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-with-trailing-char&quot;</span>/imm32
+<span id="L178" class="LineNr">178 </span>    68/push  0/imm32/false
+<span id="L179" class="LineNr">179 </span>    50/push-eax
+<span id="L180" class="LineNr">180 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L181" class="LineNr">181 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L182" class="LineNr">182 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L183" class="LineNr">183 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L184" class="LineNr">184 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L185" class="LineNr">185 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L186" class="LineNr">186 </span>    5d/pop-to-ebp
+<span id="L187" class="LineNr">187 </span>    c3/return
+<span id="L188" class="LineNr">188 </span>
+<span id="L189" class="LineNr">189 </span><span class="subxTest">test-is-hex-int-with-leading-char</span>:
+<span id="L190" class="LineNr">190 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L191" class="LineNr">191 </span>    55/push-ebp
+<span id="L192" class="LineNr">192 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L193" class="LineNr">193 </span>    <span class="subxComment"># (eax..ecx) = &quot;q34&quot;</span>
+<span id="L194" class="LineNr">194 </span>    b8/copy-to-eax  <span class="Constant">&quot;q34&quot;</span>/imm32
+<span id="L195" class="LineNr">195 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L196" class="LineNr">196 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L197" class="LineNr">197 </span>    05/add-to-eax  4/imm32
+<span id="L198" class="LineNr">198 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L199" class="LineNr">199 </span>    51/push-ecx
+<span id="L200" class="LineNr">200 </span>    50/push-eax
+<span id="L201" class="LineNr">201 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L202" class="LineNr">202 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L203" class="LineNr">203 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L204" class="LineNr">204 </span>    51/push-ecx
+<span id="L205" class="LineNr">205 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L206" class="LineNr">206 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L207" class="LineNr">207 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L208" class="LineNr">208 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L209" class="LineNr">209 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L210" class="LineNr">210 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L211" class="LineNr">211 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-with-leading-char&quot;</span>/imm32
+<span id="L212" class="LineNr">212 </span>    68/push  0/imm32/false
+<span id="L213" class="LineNr">213 </span>    50/push-eax
+<span id="L214" class="LineNr">214 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L215" class="LineNr">215 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L216" class="LineNr">216 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L217" class="LineNr">217 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L218" class="LineNr">218 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L219" class="LineNr">219 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L220" class="LineNr">220 </span>    5d/pop-to-ebp
+<span id="L221" class="LineNr">221 </span>    c3/return
+<span id="L222" class="LineNr">222 </span>
+<span id="L223" class="LineNr">223 </span><span class="subxTest">test-is-hex-int-empty</span>:
+<span id="L224" class="LineNr">224 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L225" class="LineNr">225 </span>    55/push-ebp
+<span id="L226" class="LineNr">226 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L227" class="LineNr">227 </span>    <span class="subxComment"># var slice/ecx: slice = &quot;&quot;</span>
+<span id="L228" class="LineNr">228 </span>    68/push  0/imm32
+<span id="L229" class="LineNr">229 </span>    68/push  0/imm32
+<span id="L230" class="LineNr">230 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L231" class="LineNr">231 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L232" class="LineNr">232 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L233" class="LineNr">233 </span>    51/push-ecx
+<span id="L234" class="LineNr">234 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L235" class="LineNr">235 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L236" class="LineNr">236 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L237" class="LineNr">237 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L238" class="LineNr">238 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L239" class="LineNr">239 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L240" class="LineNr">240 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-empty&quot;</span>/imm32
+<span id="L241" class="LineNr">241 </span>    68/push  0/imm32/false
+<span id="L242" class="LineNr">242 </span>    50/push-eax
+<span id="L243" class="LineNr">243 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L244" class="LineNr">244 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L245" class="LineNr">245 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L246" class="LineNr">246 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L247" class="LineNr">247 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L248" class="LineNr">248 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L249" class="LineNr">249 </span>    5d/pop-to-ebp
+<span id="L250" class="LineNr">250 </span>    c3/return
+<span id="L251" class="LineNr">251 </span>
+<span id="L252" class="LineNr">252 </span><span class="subxTest">test-is-hex-int-handles-0x-prefix</span>:
+<span id="L253" class="LineNr">253 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L254" class="LineNr">254 </span>    55/push-ebp
+<span id="L255" class="LineNr">255 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L256" class="LineNr">256 </span>    <span class="subxComment"># (eax..ecx) = &quot;0x3a&quot;</span>
+<span id="L257" class="LineNr">257 </span>    b8/copy-to-eax  <span class="Constant">&quot;0x3a&quot;</span>/imm32
+<span id="L258" class="LineNr">258 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L259" class="LineNr">259 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L260" class="LineNr">260 </span>    05/add-to-eax  4/imm32
+<span id="L261" class="LineNr">261 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L262" class="LineNr">262 </span>    51/push-ecx
+<span id="L263" class="LineNr">263 </span>    50/push-eax
+<span id="L264" class="LineNr">264 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L265" class="LineNr">265 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L266" class="LineNr">266 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L267" class="LineNr">267 </span>    51/push-ecx
+<span id="L268" class="LineNr">268 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L269" class="LineNr">269 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L270" class="LineNr">270 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L271" class="LineNr">271 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L272" class="LineNr">272 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L273" class="LineNr">273 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L274" class="LineNr">274 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-handles-0x-prefix&quot;</span>/imm32
+<span id="L275" class="LineNr">275 </span>    68/push  1/imm32/true
+<span id="L276" class="LineNr">276 </span>    50/push-eax
+<span id="L277" class="LineNr">277 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L278" class="LineNr">278 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L279" class="LineNr">279 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L280" class="LineNr">280 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L281" class="LineNr">281 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L282" class="LineNr">282 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L283" class="LineNr">283 </span>    5d/pop-to-ebp
+<span id="L284" class="LineNr">284 </span>    c3/return
+<span id="L285" class="LineNr">285 </span>
+<span id="L286" class="LineNr">286 </span><span class="subxTest">test-is-hex-int-handles-negative</span>:
+<span id="L287" class="LineNr">287 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L288" class="LineNr">288 </span>    55/push-ebp
+<span id="L289" class="LineNr">289 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L290" class="LineNr">290 </span>    <span class="subxComment"># (eax..ecx) = &quot;-34a&quot;</span>
+<span id="L291" class="LineNr">291 </span>    b8/copy-to-eax  <span class="Constant">&quot;-34a&quot;</span>/imm32
+<span id="L292" class="LineNr">292 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L293" class="LineNr">293 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L294" class="LineNr">294 </span>    05/add-to-eax  4/imm32
+<span id="L295" class="LineNr">295 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L296" class="LineNr">296 </span>    51/push-ecx
+<span id="L297" class="LineNr">297 </span>    50/push-eax
+<span id="L298" class="LineNr">298 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L299" class="LineNr">299 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L300" class="LineNr">300 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L301" class="LineNr">301 </span>    51/push-ecx
+<span id="L302" class="LineNr">302 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L303" class="LineNr">303 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L304" class="LineNr">304 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L305" class="LineNr">305 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L306" class="LineNr">306 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L307" class="LineNr">307 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L308" class="LineNr">308 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-handles-negative&quot;</span>/imm32
+<span id="L309" class="LineNr">309 </span>    68/push  1/imm32/true
+<span id="L310" class="LineNr">310 </span>    50/push-eax
+<span id="L311" class="LineNr">311 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L312" class="LineNr">312 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L313" class="LineNr">313 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L314" class="LineNr">314 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L315" class="LineNr">315 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L316" class="LineNr">316 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L317" class="LineNr">317 </span>    5d/pop-to-ebp
+<span id="L318" class="LineNr">318 </span>    c3/return
+<span id="L319" class="LineNr">319 </span>
+<span id="L320" class="LineNr">320 </span><span class="subxTest">test-is-hex-int-handles-negative-0x-prefix</span>:
+<span id="L321" class="LineNr">321 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L322" class="LineNr">322 </span>    55/push-ebp
+<span id="L323" class="LineNr">323 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L324" class="LineNr">324 </span>    <span class="subxComment"># (eax..ecx) = &quot;-0x3a&quot;</span>
+<span id="L325" class="LineNr">325 </span>    b8/copy-to-eax  <span class="Constant">&quot;-0x3a&quot;</span>/imm32
+<span id="L326" class="LineNr">326 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L327" class="LineNr">327 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L328" class="LineNr">328 </span>    05/add-to-eax  4/imm32
+<span id="L329" class="LineNr">329 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L330" class="LineNr">330 </span>    51/push-ecx
+<span id="L331" class="LineNr">331 </span>    50/push-eax
+<span id="L332" class="LineNr">332 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L333" class="LineNr">333 </span>    <span class="subxComment"># eax = is-hex-int?(slice)</span>
+<span id="L334" class="LineNr">334 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L335" class="LineNr">335 </span>    51/push-ecx
+<span id="L336" class="LineNr">336 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L337" class="LineNr">337 </span>    e8/call  <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a>/disp32
+<span id="L338" class="LineNr">338 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L339" class="LineNr">339 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L340" class="LineNr">340 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L341" class="LineNr">341 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L342" class="LineNr">342 </span>    68/push  <span class="Constant">&quot;F - test-is-hex-int-handles-negative-0x-prefix&quot;</span>/imm32
+<span id="L343" class="LineNr">343 </span>    68/push  1/imm32/true
+<span id="L344" class="LineNr">344 </span>    50/push-eax
+<span id="L345" class="LineNr">345 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L346" class="LineNr">346 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L347" class="LineNr">347 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L348" class="LineNr">348 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L349" class="LineNr">349 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L350" class="LineNr">350 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L351" class="LineNr">351 </span>    5d/pop-to-ebp
+<span id="L352" class="LineNr">352 </span>    c3/return
+<span id="L353" class="LineNr">353 </span>
+<span id="L354" class="LineNr">354 </span><span class="subxFunction">parse-hex-int</span>:  <span class="subxComment"># in: (addr array byte) -&gt; result/eax: int</span>
+<span id="L355" class="LineNr">355 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L356" class="LineNr">356 </span>    55/push-ebp
+<span id="L357" class="LineNr">357 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L358" class="LineNr">358 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L359" class="LineNr">359 </span>    51/push-ecx
+<span id="L360" class="LineNr">360 </span>    52/push-edx
+<span id="L361" class="LineNr">361 </span>    <span class="subxComment"># eax = in</span>
+<span id="L362" class="LineNr">362 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to eax</span>
+<span id="L363" class="LineNr">363 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = &amp;in-&gt;data</span>
+<span id="L364" class="LineNr">364 </span>    8d/copy-address                 1/mod/*+disp8   0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+4 to ecx</span>
+<span id="L365" class="LineNr">365 </span>    <span class="subxComment"># var max/edx: (addr byte) = &amp;in-&gt;data[in-&gt;size]</span>
+<span id="L366" class="LineNr">366 </span>    <span class="subxS1Comment"># . edx = in-&gt;size</span>
+<span id="L367" class="LineNr">367 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to edx</span>
+<span id="L368" class="LineNr">368 </span>    <span class="subxS1Comment"># . edx = in-&gt;data + in-&gt;size</span>
+<span id="L369" class="LineNr">369 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  2/index/edx  <span class="Normal"> . </span>          2/r32/edx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+edx+4 to edx</span>
+<span id="L370" class="LineNr">370 </span>    <span class="subxComment"># return parse-hex-int-helper(curr, max)</span>
+<span id="L371" class="LineNr">371 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L372" class="LineNr">372 </span>    52/push-edx
+<span id="L373" class="LineNr">373 </span>    51/push-ecx
+<span id="L374" class="LineNr">374 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L375" class="LineNr">375 </span>    e8/call  <a href='118parse-hex-int.subx.html#L417'>parse-hex-int-helper</a>/disp32
+<span id="L376" class="LineNr">376 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L377" class="LineNr">377 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L378" class="LineNr">378 </span><span class="Constant">$parse-hex-int:end</span>:
+<span id="L379" class="LineNr">379 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L380" class="LineNr">380 </span>    5a/pop-to-edx
+<span id="L381" class="LineNr">381 </span>    59/pop-to-ecx
+<span id="L382" class="LineNr">382 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L383" class="LineNr">383 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L384" class="LineNr">384 </span>    5d/pop-to-ebp
+<span id="L385" class="LineNr">385 </span>    c3/return
+<span id="L386" class="LineNr">386 </span>
+<span id="L387" class="LineNr">387 </span><span class="subxFunction">parse-hex-int-from-slice</span>:  <span class="subxComment"># in: (addr slice) -&gt; result/eax: int</span>
+<span id="L388" class="LineNr">388 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L389" class="LineNr">389 </span>    55/push-ebp
+<span id="L390" class="LineNr">390 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L391" class="LineNr">391 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L392" class="LineNr">392 </span>    51/push-ecx
+<span id="L393" class="LineNr">393 </span>    52/push-edx
+<span id="L394" class="LineNr">394 </span>    <span class="subxComment"># ecx = in</span>
+<span id="L395" class="LineNr">395 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to ecx</span>
+<span id="L396" class="LineNr">396 </span>    <span class="subxComment"># var max/edx: (addr byte) = in-&gt;end</span>
+<span id="L397" class="LineNr">397 </span>    8b/copy                         1/mod/*+disp8   1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ecx+4) to edx</span>
+<span id="L398" class="LineNr">398 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = in-&gt;start</span>
+<span id="L399" class="LineNr">399 </span>    8b/copy                         0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *ecx to ecx</span>
+<span id="L400" class="LineNr">400 </span>    <span class="subxComment"># return parse-hex-int-helper(curr, max)</span>
+<span id="L401" class="LineNr">401 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L402" class="LineNr">402 </span>    52/push-edx
+<span id="L403" class="LineNr">403 </span>    51/push-ecx
+<span id="L404" class="LineNr">404 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L405" class="LineNr">405 </span>    e8/call  <a href='118parse-hex-int.subx.html#L417'>parse-hex-int-helper</a>/disp32
+<span id="L406" class="LineNr">406 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L407" class="LineNr">407 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
+<span id="L408" class="LineNr">408 </span><span class="Constant">$parse-hex-int-from-slice:end</span>:
+<span id="L409" class="LineNr">409 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L410" class="LineNr">410 </span>    5a/pop-to-edx
+<span id="L411" class="LineNr">411 </span>    59/pop-to-ecx
+<span id="L412" class="LineNr">412 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L413" class="LineNr">413 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L414" class="LineNr">414 </span>    5d/pop-to-ebp
+<span id="L415" class="LineNr">415 </span>    c3/return
+<span id="L416" class="LineNr">416 </span>
+<span id="L417" class="LineNr">417 </span><span class="subxFunction">parse-hex-int-helper</span>:  <span class="subxComment"># start: (addr byte), end: (addr byte) -&gt; result/eax: int</span>
+<span id="L418" class="LineNr">418 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L419" class="LineNr">419 </span>    55/push-ebp
+<span id="L420" class="LineNr">420 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L421" class="LineNr">421 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L422" class="LineNr">422 </span>    51/push-ecx
+<span id="L423" class="LineNr">423 </span>    52/push-edx
+<span id="L424" class="LineNr">424 </span>    53/push-ebx
+<span id="L425" class="LineNr">425 </span>    56/push-esi
+<span id="L426" class="LineNr">426 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = start</span>
+<span id="L427" class="LineNr">427 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to ecx</span>
+<span id="L428" class="LineNr">428 </span>    <span class="subxComment"># edx = max</span>
+<span id="L429" class="LineNr">429 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to edx</span>
+<span id="L430" class="LineNr">430 </span>    <span class="subxComment"># var result/ebx: int = 0</span>
+<span id="L431" class="LineNr">431 </span>    31/xor                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear ebx</span>
+<span id="L432" class="LineNr">432 </span>    <span class="subxComment"># var negate?/esi: boolean = false</span>
+<span id="L433" class="LineNr">433 </span>    31/xor                          3/mod/direct    6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          6/r32/esi  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear esi</span>
+<span id="L434" class="LineNr">434 </span><span class="Constant">$parse-hex-int-helper:negative</span>:
+<span id="L435" class="LineNr">435 </span>    <span class="subxComment"># if (*curr == '-') ++curr, negate = true</span>
+<span id="L436" class="LineNr">436 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
+<span id="L437" class="LineNr">437 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to AL</span>
+<span id="L438" class="LineNr">438 </span>    3d/compare-eax-and  0x2d/imm32/-
+<span id="L439" class="LineNr">439 </span>    75/jump-if-!=  $parse-hex-int-helper:initial-0/disp8
+<span id="L440" class="LineNr">440 </span>    <span class="subxS1Comment"># . ++curr</span>
+<span id="L441" class="LineNr">441 </span>    41/increment-ecx
+<span id="L442" class="LineNr">442 </span>    <span class="subxS1Comment"># . negate = true</span>
+<span id="L443" class="LineNr">443 </span>    be/copy-to-esi  1/imm32/true
+<span id="L444" class="LineNr">444 </span><span class="Constant">$parse-hex-int-helper:initial-0</span>:
+<span id="L445" class="LineNr">445 </span>    <span class="subxComment"># skip past leading '0x'</span>
+<span id="L446" class="LineNr">446 </span>    <span class="subxS1Comment"># . if (*curr != '0') jump to loop</span>
+<span id="L447" class="LineNr">447 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to AL</span>
+<span id="L448" class="LineNr">448 </span>    3d/compare-eax-and  0x30/imm32/0
+<span id="L449" class="LineNr">449 </span>    75/jump-if-!=  $parse-hex-int-helper:<span class="Constant">loop</span>/disp8
+<span id="L450" class="LineNr">450 </span>    <span class="subxS1Comment"># . ++curr</span>
+<span id="L451" class="LineNr">451 </span>    41/increment-ecx
+<span id="L452" class="LineNr">452 </span><span class="Constant">$parse-hex-int-helper:initial-0x</span>:
+<span id="L453" class="LineNr">453 </span>    <span class="subxS1Comment"># . if (curr &gt;= in-&gt;end) return result</span>
+<span id="L454" class="LineNr">454 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
+<span id="L455" class="LineNr">455 </span>    73/jump-if-addr&gt;=  $parse-hex-int-helper:end/disp8
+<span id="L456" class="LineNr">456 </span>    <span class="subxS1Comment"># . if (*curr != 'x') jump to loop  # the previous '0' is still valid so doesn't need to be checked again</span>
+<span id="L457" class="LineNr">457 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
+<span id="L458" class="LineNr">458 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to AL</span>
+<span id="L459" class="LineNr">459 </span>    3d/compare-eax-and  0x78/imm32/x
+<span id="L460" class="LineNr">460 </span>    75/jump-if-!=  $parse-hex-int-helper:<span class="Constant">loop</span>/disp8
+<span id="L461" class="LineNr">461 </span>    <span class="subxS1Comment"># . ++curr</span>
+<span id="L462" class="LineNr">462 </span>    41/increment-ecx
+<span id="L463" class="LineNr">463 </span><span class="Constant">$parse-hex-int-helper:loop</span>:
+<span id="L464" class="LineNr">464 </span>    <span class="subxComment"># if (curr &gt;= in-&gt;end) break</span>
+<span id="L465" class="LineNr">465 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with edx</span>
+<span id="L466" class="LineNr">466 </span>    73/jump-if-addr&gt;=  $parse-hex-int-helper:negate/disp8
+<span id="L467" class="LineNr">467 </span>    <span class="subxComment"># var eax: int = from-hex-char(*curr)</span>
+<span id="L468" class="LineNr">468 </span>    <span class="subxS2Comment"># . . copy arg to eax</span>
+<span id="L469" class="LineNr">469 </span>    8a/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy byte at *ecx to AL</span>
+<span id="L470" class="LineNr">470 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L471" class="LineNr">471 </span>    e8/call  <a href='118parse-hex-int.subx.html#L864'>from-hex-char</a>/disp32
+<span id="L472" class="LineNr">472 </span>    <span class="subxComment"># result = result * 16 + eax</span>
+<span id="L473" class="LineNr">473 </span>    c1/shift    4/subop/left        3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm8            <span class="subxComment"># shift ebx left by 4 bits</span>
+<span id="L474" class="LineNr">474 </span>    01/add                          3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># add eax to ebx</span>
+<span id="L475" class="LineNr">475 </span>    <span class="subxComment"># ++curr</span>
+<span id="L476" class="LineNr">476 </span>    41/increment-ecx
+<span id="L477" class="LineNr">477 </span>    <span class="subxComment"># loop</span>
+<span id="L478" class="LineNr">478 </span>    eb/jump  $parse-hex-int-helper:<span class="Constant">loop</span>/disp8
+<span id="L479" class="LineNr">479 </span><span class="Constant">$parse-hex-int-helper:negate</span>:
+<span id="L480" class="LineNr">480 </span>    <span class="subxComment"># if (negate?) result = -result</span>
+<span id="L481" class="LineNr">481 </span>    81          7/subop/compare     3/mod/direct    6/rm32/esi   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0/imm32/false     <span class="subxComment"># compare esi</span>
+<span id="L482" class="LineNr">482 </span>    74/jump-if-=  $parse-hex-int-helper:end/disp8
+<span id="L483" class="LineNr">483 </span>    f7          3/subop/negate      3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># negate ebx</span>
+<span id="L484" class="LineNr">484 </span><span class="Constant">$parse-hex-int-helper:end</span>:
+<span id="L485" class="LineNr">485 </span>    <span class="subxComment"># return result</span>
+<span id="L486" class="LineNr">486 </span>    89/copy                         3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebx to eax</span>
+<span id="L487" class="LineNr">487 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L488" class="LineNr">488 </span>    5e/pop-to-esi
+<span id="L489" class="LineNr">489 </span>    5b/pop-to-ebx
+<span id="L490" class="LineNr">490 </span>    5a/pop-to-edx
+<span id="L491" class="LineNr">491 </span>    59/pop-to-ecx
+<span id="L492" class="LineNr">492 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L493" class="LineNr">493 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L494" class="LineNr">494 </span>    5d/pop-to-ebp
+<span id="L495" class="LineNr">495 </span>    c3/return
+<span id="L496" class="LineNr">496 </span>
+<span id="L497" class="LineNr">497 </span><span class="subxTest">test-parse-hex-int-from-slice-single-digit</span>:
+<span id="L498" class="LineNr">498 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L499" class="LineNr">499 </span>    55/push-ebp
+<span id="L500" class="LineNr">500 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L501" class="LineNr">501 </span>    <span class="subxComment"># (eax..ecx) = &quot;a&quot;</span>
+<span id="L502" class="LineNr">502 </span>    b8/copy-to-eax  <span class="Constant">&quot;a&quot;</span>/imm32
+<span id="L503" class="LineNr">503 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L504" class="LineNr">504 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L505" class="LineNr">505 </span>    05/add-to-eax  4/imm32
+<span id="L506" class="LineNr">506 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L507" class="LineNr">507 </span>    51/push-ecx
+<span id="L508" class="LineNr">508 </span>    50/push-eax
+<span id="L509" class="LineNr">509 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L510" class="LineNr">510 </span>    <span class="subxComment"># eax = parse-hex-int-from-slice(slice)</span>
+<span id="L511" class="LineNr">511 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L512" class="LineNr">512 </span>    51/push-ecx
+<span id="L513" class="LineNr">513 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L514" class="LineNr">514 </span>    e8/call  <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a>/disp32
+<span id="L515" class="LineNr">515 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L516" class="LineNr">516 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L517" class="LineNr">517 </span>    <span class="subxComment"># check-ints-equal(eax, 0xa, msg)</span>
+<span id="L518" class="LineNr">518 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L519" class="LineNr">519 </span>    68/push  <span class="Constant">&quot;F - test-parse-hex-int-from-slice-single-digit&quot;</span>/imm32
+<span id="L520" class="LineNr">520 </span>    68/push  0xa/imm32
+<span id="L521" class="LineNr">521 </span>    50/push-eax
+<span id="L522" class="LineNr">522 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L523" class="LineNr">523 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L524" class="LineNr">524 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L525" class="LineNr">525 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L526" class="LineNr">526 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L527" class="LineNr">527 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L528" class="LineNr">528 </span>    5d/pop-to-ebp
+<span id="L529" class="LineNr">529 </span>    c3/return
+<span id="L530" class="LineNr">530 </span>
+<span id="L531" class="LineNr">531 </span><span class="subxTest">test-parse-hex-int-from-slice-multi-digit</span>:
+<span id="L532" class="LineNr">532 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L533" class="LineNr">533 </span>    55/push-ebp
+<span id="L534" class="LineNr">534 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L535" class="LineNr">535 </span>    <span class="subxComment"># (eax..ecx) = &quot;34a&quot;</span>
+<span id="L536" class="LineNr">536 </span>    b8/copy-to-eax  <span class="Constant">&quot;34a&quot;</span>/imm32
+<span id="L537" class="LineNr">537 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L538" class="LineNr">538 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L539" class="LineNr">539 </span>    05/add-to-eax  4/imm32
+<span id="L540" class="LineNr">540 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L541" class="LineNr">541 </span>    51/push-ecx
+<span id="L542" class="LineNr">542 </span>    50/push-eax
+<span id="L543" class="LineNr">543 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L544" class="LineNr">544 </span>    <span class="subxComment"># eax = parse-hex-int-from-slice(slice)</span>
+<span id="L545" class="LineNr">545 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L546" class="LineNr">546 </span>    51/push-ecx
+<span id="L547" class="LineNr">547 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L548" class="LineNr">548 </span>    e8/call  <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a>/disp32
+<span id="L549" class="LineNr">549 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L550" class="LineNr">550 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L551" class="LineNr">551 </span>    <span class="subxComment"># check-ints-equal(eax, 0x34a, msg)</span>
+<span id="L552" class="LineNr">552 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L553" class="LineNr">553 </span>    68/push  <span class="Constant">&quot;F - test-parse-hex-int-from-slice-multi-digit&quot;</span>/imm32
+<span id="L554" class="LineNr">554 </span>    68/push  0x34a/imm32
+<span id="L555" class="LineNr">555 </span>    50/push-eax
+<span id="L556" class="LineNr">556 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L557" class="LineNr">557 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L558" class="LineNr">558 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L559" class="LineNr">559 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L560" class="LineNr">560 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L561" class="LineNr">561 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L562" class="LineNr">562 </span>    5d/pop-to-ebp
+<span id="L563" class="LineNr">563 </span>    c3/return
+<span id="L564" class="LineNr">564 </span>
+<span id="L565" class="LineNr">565 </span><span class="subxTest">test-parse-hex-int-from-slice-0x-prefix</span>:
+<span id="L566" class="LineNr">566 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L567" class="LineNr">567 </span>    55/push-ebp
+<span id="L568" class="LineNr">568 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L569" class="LineNr">569 </span>    <span class="subxComment"># (eax..ecx) = &quot;0x34&quot;</span>
+<span id="L570" class="LineNr">570 </span>    b8/copy-to-eax  <span class="Constant">&quot;0x34&quot;</span>/imm32
+<span id="L571" class="LineNr">571 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L572" class="LineNr">572 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L573" class="LineNr">573 </span>    05/add-to-eax  4/imm32
+<span id="L574" class="LineNr">574 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L575" class="LineNr">575 </span>    51/push-ecx
+<span id="L576" class="LineNr">576 </span>    50/push-eax
+<span id="L577" class="LineNr">577 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L578" class="LineNr">578 </span>    <span class="subxComment"># eax = parse-hex-int-from-slice(slice)</span>
+<span id="L579" class="LineNr">579 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L580" class="LineNr">580 </span>    51/push-ecx
+<span id="L581" class="LineNr">581 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L582" class="LineNr">582 </span>    e8/call  <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a>/disp32
+<span id="L583" class="LineNr">583 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L584" class="LineNr">584 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L585" class="LineNr">585 </span>    <span class="subxComment"># check-ints-equal(eax, 0x34, msg)</span>
+<span id="L586" class="LineNr">586 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L587" class="LineNr">587 </span>    68/push  <span class="Constant">&quot;F - test-parse-hex-int-from-slice-0x-prefix&quot;</span>/imm32
+<span id="L588" class="LineNr">588 </span>    68/push  0x34/imm32
+<span id="L589" class="LineNr">589 </span>    50/push-eax
+<span id="L590" class="LineNr">590 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L591" class="LineNr">591 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L592" class="LineNr">592 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L593" class="LineNr">593 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L594" class="LineNr">594 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L595" class="LineNr">595 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L596" class="LineNr">596 </span>    5d/pop-to-ebp
+<span id="L597" class="LineNr">597 </span>    c3/return
+<span id="L598" class="LineNr">598 </span>
+<span id="L599" class="LineNr">599 </span><span class="subxTest">test-parse-hex-int-from-slice-zero</span>:
+<span id="L600" class="LineNr">600 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L601" class="LineNr">601 </span>    55/push-ebp
+<span id="L602" class="LineNr">602 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L603" class="LineNr">603 </span>    <span class="subxComment"># (eax..ecx) = &quot;0&quot;</span>
+<span id="L604" class="LineNr">604 </span>    b8/copy-to-eax  <span class="Constant">&quot;0&quot;</span>/imm32
+<span id="L605" class="LineNr">605 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L606" class="LineNr">606 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L607" class="LineNr">607 </span>    05/add-to-eax  4/imm32
+<span id="L608" class="LineNr">608 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L609" class="LineNr">609 </span>    51/push-ecx
+<span id="L610" class="LineNr">610 </span>    50/push-eax
+<span id="L611" class="LineNr">611 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L612" class="LineNr">612 </span>    <span class="subxComment"># eax = parse-hex-int-from-slice(slice)</span>
+<span id="L613" class="LineNr">613 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L614" class="LineNr">614 </span>    51/push-ecx
+<span id="L615" class="LineNr">615 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L616" class="LineNr">616 </span>    e8/call  <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a>/disp32
+<span id="L617" class="LineNr">617 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L618" class="LineNr">618 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L619" class="LineNr">619 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L620" class="LineNr">620 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L621" class="LineNr">621 </span>    68/push  <span class="Constant">&quot;F - test-parse-hex-int-from-slice-zero&quot;</span>/imm32
+<span id="L622" class="LineNr">622 </span>    68/push  0/imm32
+<span id="L623" class="LineNr">623 </span>    50/push-eax
+<span id="L624" class="LineNr">624 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L625" class="LineNr">625 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L626" class="LineNr">626 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L627" class="LineNr">627 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L628" class="LineNr">628 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L629" class="LineNr">629 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L630" class="LineNr">630 </span>    5d/pop-to-ebp
+<span id="L631" class="LineNr">631 </span>    c3/return
+<span id="L632" class="LineNr">632 </span>
+<span id="L633" class="LineNr">633 </span><span class="subxTest">test-parse-hex-int-from-slice-0-prefix</span>:
+<span id="L634" class="LineNr">634 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L635" class="LineNr">635 </span>    55/push-ebp
+<span id="L636" class="LineNr">636 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L637" class="LineNr">637 </span>    <span class="subxComment"># (eax..ecx) = &quot;03&quot;</span>
+<span id="L638" class="LineNr">638 </span>    b8/copy-to-eax  <span class="Constant">&quot;03&quot;</span>/imm32
+<span id="L639" class="LineNr">639 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L640" class="LineNr">640 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L641" class="LineNr">641 </span>    05/add-to-eax  4/imm32
+<span id="L642" class="LineNr">642 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L643" class="LineNr">643 </span>    51/push-ecx
+<span id="L644" class="LineNr">644 </span>    50/push-eax
+<span id="L645" class="LineNr">645 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L646" class="LineNr">646 </span>    <span class="subxComment"># eax = parse-hex-int-from-slice(slice)</span>
+<span id="L647" class="LineNr">647 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L648" class="LineNr">648 </span>    51/push-ecx
+<span id="L649" class="LineNr">649 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L650" class="LineNr">650 </span>    e8/call  <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a>/disp32
+<span id="L651" class="LineNr">651 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L652" class="LineNr">652 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L653" class="LineNr">653 </span>    <span class="subxComment"># check-ints-equal(eax, 0x3, msg)</span>
+<span id="L654" class="LineNr">654 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L655" class="LineNr">655 </span>    68/push  <span class="Constant">&quot;F - test-parse-hex-int-from-slice-0-prefix&quot;</span>/imm32
+<span id="L656" class="LineNr">656 </span>    68/push  0x3/imm32
+<span id="L657" class="LineNr">657 </span>    50/push-eax
+<span id="L658" class="LineNr">658 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L659" class="LineNr">659 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L660" class="LineNr">660 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L661" class="LineNr">661 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L662" class="LineNr">662 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L663" class="LineNr">663 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L664" class="LineNr">664 </span>    5d/pop-to-ebp
+<span id="L665" class="LineNr">665 </span>    c3/return
+<span id="L666" class="LineNr">666 </span>
+<span id="L667" class="LineNr">667 </span><span class="subxTest">test-parse-hex-int-from-slice-negative</span>:
+<span id="L668" class="LineNr">668 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L669" class="LineNr">669 </span>    55/push-ebp
+<span id="L670" class="LineNr">670 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L671" class="LineNr">671 </span>    <span class="subxComment"># (eax..ecx) = &quot;-03&quot;</span>
+<span id="L672" class="LineNr">672 </span>    b8/copy-to-eax  <span class="Constant">&quot;-03&quot;</span>/imm32
+<span id="L673" class="LineNr">673 </span>    8b/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy *eax to ecx</span>
+<span id="L674" class="LineNr">674 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  1/index/ecx  <span class="Normal"> . </span>          1/r32/ecx   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ecx+4 to ecx</span>
+<span id="L675" class="LineNr">675 </span>    05/add-to-eax  4/imm32
+<span id="L676" class="LineNr">676 </span>    <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span>
+<span id="L677" class="LineNr">677 </span>    51/push-ecx
+<span id="L678" class="LineNr">678 </span>    50/push-eax
+<span id="L679" class="LineNr">679 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ecx</span>
+<span id="L680" class="LineNr">680 </span>    <span class="subxComment"># eax = parse-hex-int-from-slice(slice)</span>
+<span id="L681" class="LineNr">681 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L682" class="LineNr">682 </span>    51/push-ecx
+<span id="L683" class="LineNr">683 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L684" class="LineNr">684 </span>    e8/call  <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a>/disp32
+<span id="L685" class="LineNr">685 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L686" class="LineNr">686 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L687" class="LineNr">687 </span>    <span class="subxComment"># check-ints-equal(eax, -3, msg)</span>
+<span id="L688" class="LineNr">688 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L689" class="LineNr">689 </span>    68/push  <span class="Constant">&quot;F - test-parse-hex-int-from-slice-negative&quot;</span>/imm32
+<span id="L690" class="LineNr">690 </span>    68/push  -3/imm32
+<span id="L691" class="LineNr">691 </span>    50/push-eax
+<span id="L692" class="LineNr">692 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L693" class="LineNr">693 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L694" class="LineNr">694 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L695" class="LineNr">695 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L696" class="LineNr">696 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L697" class="LineNr">697 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L698" class="LineNr">698 </span>    5d/pop-to-ebp
+<span id="L699" class="LineNr">699 </span>    c3/return
+<span id="L700" class="LineNr">700 </span>
+<span id="L701" class="LineNr">701 </span><span class="subxFunction">is-hex-digit?</span>:  <span class="subxComment"># c: byte -&gt; result/eax: boolean</span>
+<span id="L702" class="LineNr">702 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L703" class="LineNr">703 </span>    55/push-ebp
+<span id="L704" class="LineNr">704 </span>    89/copy                         3/mod/direct    5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          4/r32/esp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy esp to ebp</span>
+<span id="L705" class="LineNr">705 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L706" class="LineNr">706 </span>    51/push-ecx
+<span id="L707" class="LineNr">707 </span>    <span class="subxComment"># ecx = c</span>
+<span id="L708" class="LineNr">708 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx   8/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+8) to ecx</span>
+<span id="L709" class="LineNr">709 </span>    <span class="subxComment"># return false if c &lt; '0'</span>
+<span id="L710" class="LineNr">710 </span>    81          7/subop/compare     3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x30/imm32        <span class="subxComment"># compare ecx</span>
+<span id="L711" class="LineNr">711 </span>    7c/jump-if-&lt;  $is-hex-digit?:false/disp8
+<span id="L712" class="LineNr">712 </span>    <span class="subxComment"># return true if c &lt;= '9'</span>
+<span id="L713" class="LineNr">713 </span>    81          7/subop/compare     3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x39/imm32        <span class="subxComment"># compare ecx</span>
+<span id="L714" class="LineNr">714 </span>    7e/jump-if-&lt;=  $is-hex-digit?:true/disp8
+<span id="L715" class="LineNr">715 </span>    <span class="subxComment"># drop case</span>
+<span id="L716" class="LineNr">716 </span>    25/and-eax-with 0x5f/imm32
+<span id="L717" class="LineNr">717 </span>    <span class="subxComment"># return false if c &gt; 'f'</span>
+<span id="L718" class="LineNr">718 </span>    81          7/subop/compare     3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x66/imm32        <span class="subxComment"># compare ecx</span>
+<span id="L719" class="LineNr">719 </span>    7f/jump-if-&gt;  $is-hex-digit?:false/disp8
+<span id="L720" class="LineNr">720 </span>    <span class="subxComment"># return true if c &gt;= 'a'</span>
+<span id="L721" class="LineNr">721 </span>    81          7/subop/compare     3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0x61/imm32        <span class="subxComment"># compare ecx</span>
+<span id="L722" class="LineNr">722 </span>    7d/jump-if-&gt;=  $is-hex-digit?:true/disp8
+<span id="L723" class="LineNr">723 </span>    <span class="subxComment"># otherwise return false</span>
+<span id="L724" class="LineNr">724 </span><span class="Constant">$is-hex-digit?:false</span>:
+<span id="L725" class="LineNr">725 </span>    b8/copy-to-eax  0/imm32/false
+<span id="L726" class="LineNr">726 </span>    eb/jump $is-hex-digit?:end/disp8
+<span id="L727" class="LineNr">727 </span><span class="Constant">$is-hex-digit?:true</span>:
+<span id="L728" class="LineNr">728 </span>    b8/copy-to-eax  1/imm32/true
+<span id="L729" class="LineNr">729 </span><span class="Constant">$is-hex-digit?:end</span>:
+<span id="L730" class="LineNr">730 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L731" class="LineNr">731 </span>    59/pop-to-ecx
+<span id="L732" class="LineNr">732 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L733" class="LineNr">733 </span>    89/copy                         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          5/r32/ebp  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ebp to esp</span>
+<span id="L734" class="LineNr">734 </span>    5d/pop-to-ebp
+<span id="L735" class="LineNr">735 </span>    c3/return
+<span id="L736" class="LineNr">736 </span>
+<span id="L737" class="LineNr">737 </span><span class="subxTest">test-hex-below-0</span>:
+<span id="L738" class="LineNr">738 </span>    <span class="subxComment"># eax = is-hex-digit?(0x2f)</span>
+<span id="L739" class="LineNr">739 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L740" class="LineNr">740 </span>    68/push  0x2f/imm32
+<span id="L741" class="LineNr">741 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L742" class="LineNr">742 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L743" class="LineNr">743 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L744" class="LineNr">744 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L745" class="LineNr">745 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L746" class="LineNr">746 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L747" class="LineNr">747 </span>    68/push  <span class="Constant">&quot;F - test-hex-below-0&quot;</span>/imm32
+<span id="L748" class="LineNr">748 </span>    68/push  0/imm32/false
+<span id="L749" class="LineNr">749 </span>    50/push-eax
+<span id="L750" class="LineNr">750 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L751" class="LineNr">751 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L752" class="LineNr">752 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L753" class="LineNr">753 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L754" class="LineNr">754 </span>    c3/return
+<span id="L755" class="LineNr">755 </span>
+<span id="L756" class="LineNr">756 </span><span class="subxTest">test-hex-0-to-9</span>:
+<span id="L757" class="LineNr">757 </span>    <span class="subxComment"># eax = is-hex-digit?(0x30)</span>
+<span id="L758" class="LineNr">758 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L759" class="LineNr">759 </span>    68/push  0x30/imm32
+<span id="L760" class="LineNr">760 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L761" class="LineNr">761 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L762" class="LineNr">762 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L763" class="LineNr">763 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L764" class="LineNr">764 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L765" class="LineNr">765 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L766" class="LineNr">766 </span>    68/push  <span class="Constant">&quot;F - test-hex-at-0&quot;</span>/imm32
+<span id="L767" class="LineNr">767 </span>    68/push  1/imm32/true
+<span id="L768" class="LineNr">768 </span>    50/push-eax
+<span id="L769" class="LineNr">769 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L770" class="LineNr">770 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L771" class="LineNr">771 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L772" class="LineNr">772 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L773" class="LineNr">773 </span>    <span class="subxComment"># eax = is-hex-digit?(0x39)</span>
+<span id="L774" class="LineNr">774 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L775" class="LineNr">775 </span>    68/push  0x39/imm32
+<span id="L776" class="LineNr">776 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L777" class="LineNr">777 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L778" class="LineNr">778 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L779" class="LineNr">779 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L780" class="LineNr">780 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L781" class="LineNr">781 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L782" class="LineNr">782 </span>    68/push  <span class="Constant">&quot;F - test-hex-at-9&quot;</span>/imm32
+<span id="L783" class="LineNr">783 </span>    68/push  1/imm32/true
+<span id="L784" class="LineNr">784 </span>    50/push-eax
+<span id="L785" class="LineNr">785 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L786" class="LineNr">786 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L787" class="LineNr">787 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L788" class="LineNr">788 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L789" class="LineNr">789 </span>    c3/return
+<span id="L790" class="LineNr">790 </span>
+<span id="L791" class="LineNr">791 </span><span class="subxTest">test-hex-above-9-to-a</span>:
+<span id="L792" class="LineNr">792 </span>    <span class="subxComment"># eax = is-hex-digit?(0x3a)</span>
+<span id="L793" class="LineNr">793 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L794" class="LineNr">794 </span>    68/push  0x3a/imm32
+<span id="L795" class="LineNr">795 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L796" class="LineNr">796 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L797" class="LineNr">797 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L798" class="LineNr">798 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L799" class="LineNr">799 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L800" class="LineNr">800 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L801" class="LineNr">801 </span>    68/push  <span class="Constant">&quot;F - test-hex-above-9-to-a&quot;</span>/imm32
+<span id="L802" class="LineNr">802 </span>    68/push  0/imm32/false
+<span id="L803" class="LineNr">803 </span>    50/push-eax
+<span id="L804" class="LineNr">804 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L805" class="LineNr">805 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L806" class="LineNr">806 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L807" class="LineNr">807 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L808" class="LineNr">808 </span>    c3/return
+<span id="L809" class="LineNr">809 </span>
+<span id="L810" class="LineNr">810 </span><span class="subxTest">test-hex-a-to-f</span>:
+<span id="L811" class="LineNr">811 </span>    <span class="subxComment"># eax = is-hex-digit?(0x61)</span>
+<span id="L812" class="LineNr">812 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L813" class="LineNr">813 </span>    68/push  0x61/imm32
+<span id="L814" class="LineNr">814 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L815" class="LineNr">815 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L816" class="LineNr">816 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L817" class="LineNr">817 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L818" class="LineNr">818 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L819" class="LineNr">819 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L820" class="LineNr">820 </span>    68/push  <span class="Constant">&quot;F - test-hex-at-a&quot;</span>/imm32
+<span id="L821" class="LineNr">821 </span>    68/push  1/imm32/true
+<span id="L822" class="LineNr">822 </span>    50/push-eax
+<span id="L823" class="LineNr">823 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L824" class="LineNr">824 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L825" class="LineNr">825 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L826" class="LineNr">826 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L827" class="LineNr">827 </span>    <span class="subxComment"># eax = is-hex-digit?(0x66)</span>
+<span id="L828" class="LineNr">828 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L829" class="LineNr">829 </span>    68/push  0x66/imm32
+<span id="L830" class="LineNr">830 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L831" class="LineNr">831 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L832" class="LineNr">832 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L833" class="LineNr">833 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L834" class="LineNr">834 </span>    <span class="subxComment"># check-ints-equal(eax, 1, msg)</span>
+<span id="L835" class="LineNr">835 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L836" class="LineNr">836 </span>    68/push  <span class="Constant">&quot;F - test-hex-at-f&quot;</span>/imm32
+<span id="L837" class="LineNr">837 </span>    68/push  1/imm32/true
+<span id="L838" class="LineNr">838 </span>    50/push-eax
+<span id="L839" class="LineNr">839 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L840" class="LineNr">840 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L841" class="LineNr">841 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L842" class="LineNr">842 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L843" class="LineNr">843 </span>    c3/return
+<span id="L844" class="LineNr">844 </span>
+<span id="L845" class="LineNr">845 </span><span class="subxTest">test-hex-above-f</span>:
+<span id="L846" class="LineNr">846 </span>    <span class="subxComment"># eax = is-hex-digit?(0x67)</span>
+<span id="L847" class="LineNr">847 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L848" class="LineNr">848 </span>    68/push  0x67/imm32
+<span id="L849" class="LineNr">849 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L850" class="LineNr">850 </span>    e8/call  <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a>/disp32
+<span id="L851" class="LineNr">851 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L852" class="LineNr">852 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># add to esp</span>
+<span id="L853" class="LineNr">853 </span>    <span class="subxComment"># check-ints-equal(eax, 0, msg)</span>
+<span id="L854" class="LineNr">854 </span>    <span class="subxS2Comment"># . . push args</span>
+<span id="L855" class="LineNr">855 </span>    68/push  <span class="Constant">&quot;F - test-hex-above-f&quot;</span>/imm32
+<span id="L856" class="LineNr">856 </span>    68/push  0/imm32/false
+<span id="L857" class="LineNr">857 </span>    50/push-eax
+<span id="L858" class="LineNr">858 </span>    <span class="subxS2Comment"># . . call</span>
+<span id="L859" class="LineNr">859 </span>    e8/call  <a href='502test.mu.html#L2'>check-ints-equal</a>/disp32
+<span id="L860" class="LineNr">860 </span>    <span class="subxS2Comment"># . . discard args</span>
+<span id="L861" class="LineNr">861 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
+<span id="L862" class="LineNr">862 </span>    c3/return
+<span id="L863" class="LineNr">863 </span>
+<span id="L864" class="LineNr">864 </span><span class="subxFunction">from-hex-char</span>:  <span class="subxComment"># in/eax: byte -&gt; out/eax: nibble</span>
+<span id="L865" class="LineNr">865 </span><span class="Constant">$from-hex-char:check0</span>:
+<span id="L866" class="LineNr">866 </span>    <span class="subxComment"># if (eax &lt; '0') goto abort</span>
+<span id="L867" class="LineNr">867 </span>    3d/compare-eax-with  0x30/imm32/0
+<span id="L868" class="LineNr">868 </span>    7c/jump-if-&lt;  $from-hex-char:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
+<span id="L869" class="LineNr">869 </span><span class="Constant">$from-hex-char:check1</span>:
+<span id="L870" class="LineNr">870 </span>    <span class="subxComment"># if (eax &gt; 'f') goto abort</span>
+<span id="L871" class="LineNr">871 </span>    3d/compare-eax-with  0x66/imm32/f
+<span id="L872" class="LineNr">872 </span>    7f/jump-if-&gt;  $from-hex-char:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
+<span id="L873" class="LineNr">873 </span><span class="Constant">$from-hex-char:check2</span>:
+<span id="L874" class="LineNr">874 </span>    <span class="subxComment"># if (eax &gt; '9') goto next check</span>
+<span id="L875" class="LineNr">875 </span>    3d/compare-eax-with  0x39/imm32/9
+<span id="L876" class="LineNr">876 </span>    7f/jump-if-&gt;  $from-hex-char:check3/disp8
+<span id="L877" class="LineNr">877 </span><span class="Constant">$from-hex-char:digit</span>:
+<span id="L878" class="LineNr">878 </span>    <span class="subxComment"># return eax - '0'</span>
+<span id="L879" class="LineNr">879 </span>    2d/subtract-from-eax  0x30/imm32/0
+<span id="L880" class="LineNr">880 </span>    c3/return
+<span id="L881" class="LineNr">881 </span><span class="Constant">$from-hex-char:check3</span>:
+<span id="L882" class="LineNr">882 </span>    <span class="subxComment"># if (eax &lt; 'a') goto abort</span>
+<span id="L883" class="LineNr">883 </span>    3d/compare-eax-with  0x61/imm32/a
+<span id="L884" class="LineNr">884 </span>    7c/jump-if-&lt;  $from-hex-char:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
+<span id="L885" class="LineNr">885 </span><span class="Constant">$from-hex-char:letter</span>:
+<span id="L886" class="LineNr">886 </span>    <span class="subxComment"># return eax - ('a'-10)</span>
+<span id="L887" class="LineNr">887 </span>    2d/subtract-from-eax  0x57/imm32/a-10
+<span id="L888" class="LineNr">888 </span>    c3/return
+<span id="L889" class="LineNr">889 </span>
+<span id="L890" class="LineNr">890 </span><span class="Constant">$from-hex-char:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L891" class="LineNr">891 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;invalid hex char&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L892" class="LineNr">892 </span>    {
+<span id="L893" class="LineNr">893 </span>      eb/jump <span class="Constant">loop</span>/disp8
+<span id="L894" class="LineNr">894 </span>    }
+<span id="L895" class="LineNr">895 </span>    <span class="subxComment"># never gets here</span>
+<span id="L896" class="LineNr">896 </span>
+<span id="L897" class="LineNr">897 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/120allocate.subx.html b/html/baremetal/120allocate.subx.html
index f19e0902..b55f5483 100644
--- a/html/baremetal/120allocate.subx.html
+++ b/html/baremetal/120allocate.subx.html
@@ -173,7 +173,7 @@ if ('onhashchange' in window) {
 <span id="L112" class="LineNr">112 </span>    <span class="subxComment"># TODO: move this check up before any state updates when we support error recovery</span>
 <span id="L113" class="LineNr">113 </span>    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    0/base/eax  3/index/ebx  <span class="Normal"> . </span>          0/r32/eax   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy eax+ebx+4 to eax</span>
 <span id="L114" class="LineNr">114 </span>    3b/compare                      1/mod/*+disp8   1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># compare eax with *(ecx+4)</span>
-<span id="L115" class="LineNr">115 </span>    73/jump-if-&gt;=-signed  $allocate-raw:abort/disp8
+<span id="L115" class="LineNr">115 </span>    73/jump-if-&gt;=-signed  $allocate-raw:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L116" class="LineNr">116 </span><span class="Constant">$allocate-raw:commit</span>:
 <span id="L117" class="LineNr">117 </span>    <span class="subxComment"># ad-&gt;curr += n+4</span>
 <span id="L118" class="LineNr">118 </span>    89/copy                         0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy eax to *ecx</span>
@@ -190,8 +190,8 @@ if ('onhashchange' in window) {
 <span id="L129" class="LineNr">129 </span>    5d/pop-to-ebp
 <span id="L130" class="LineNr">130 </span>    c3/return
 <span id="L131" class="LineNr">131 </span>
-<span id="L132" class="LineNr">132 </span><span class="Constant">$allocate-raw:abort</span>:
-<span id="L133" class="LineNr">133 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;allocate: failed&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L132" class="LineNr">132 </span><span class="Constant">$allocate-raw:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L133" class="LineNr">133 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;allocate: failed&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L134" class="LineNr">134 </span>    {
 <span id="L135" class="LineNr">135 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L136" class="LineNr">136 </span>    }
@@ -301,7 +301,7 @@ if ('onhashchange' in window) {
 <span id="L240" class="LineNr">240 </span>    8b/copy                         1/mod/*+disp8   5/rm32/ebp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax   0xc/disp8      <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebp+12) to eax</span>
 <span id="L241" class="LineNr">241 </span>    <span class="subxComment"># if (ecx != *eax) abort</span>
 <span id="L242" class="LineNr">242 </span>    39/compare                      0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare *eax and ecx</span>
-<span id="L243" class="LineNr">243 </span>    75/jump-if-!=  $lookup:abort/disp8
+<span id="L243" class="LineNr">243 </span>    75/jump-if-!=  $lookup:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L244" class="LineNr">244 </span>    <span class="subxComment"># add 4 to eax</span>
 <span id="L245" class="LineNr">245 </span>    05/add-to-eax  4/imm32
 <span id="L246" class="LineNr">246 </span><span class="Constant">$lookup:end</span>:
@@ -312,8 +312,8 @@ if ('onhashchange' in window) {
 <span id="L251" class="LineNr">251 </span>    5d/pop-to-ebp
 <span id="L252" class="LineNr">252 </span>    c3/return
 <span id="L253" class="LineNr">253 </span>
-<span id="L254" class="LineNr">254 </span><span class="Constant">$lookup:abort</span>:
-<span id="L255" class="LineNr">255 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;lookup: failed&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L254" class="LineNr">254 </span><span class="Constant">$lookup:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L255" class="LineNr">255 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;lookup: failed&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L256" class="LineNr">256 </span>    {
 <span id="L257" class="LineNr">257 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L258" class="LineNr">258 </span>    }
@@ -560,7 +560,7 @@ if ('onhashchange' in window) {
 <span id="L499" class="LineNr">499 </span>    05/add-to-eax  4/imm32
 <span id="L500" class="LineNr">500 </span>    <span class="subxComment"># if (eax == 0) abort</span>
 <span id="L501" class="LineNr">501 </span>    3d/compare-eax-and  0/imm32
-<span id="L502" class="LineNr">502 </span>    74/jump-if-=  $allocate-region:abort/disp8
+<span id="L502" class="LineNr">502 </span>    74/jump-if-=  $allocate-region:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L503" class="LineNr">503 </span>    <span class="subxComment"># earmark 8 bytes at the start for a new allocation descriptor</span>
 <span id="L504" class="LineNr">504 </span>    <span class="subxS1Comment"># . *eax = eax + 8</span>
 <span id="L505" class="LineNr">505 </span>    89/copy                         3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy eax to ecx</span>
@@ -584,8 +584,8 @@ if ('onhashchange' in window) {
 <span id="L523" class="LineNr">523 </span><span class="subxComment"># conditional jump, even if it's unused the vast majority of the time. This way</span>
 <span id="L524" class="LineNr">524 </span><span class="subxComment"># we bloat a potentially cold segment in RAM so we can abort with a single</span>
 <span id="L525" class="LineNr">525 </span><span class="subxComment"># instruction.</span>
-<span id="L526" class="LineNr">526 </span><span class="Constant">$allocate-region:abort</span>:
-<span id="L527" class="LineNr">527 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;allocate-region: failed to allocate&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L526" class="LineNr">526 </span><span class="Constant">$allocate-region:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L527" class="LineNr">527 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;allocate-region: failed to allocate&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L528" class="LineNr">528 </span>    {
 <span id="L529" class="LineNr">529 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L530" class="LineNr">530 </span>    }
diff --git a/html/baremetal/123slice.subx.html b/html/baremetal/123slice.subx.html
index 312af093..1c6925f7 100644
--- a/html/baremetal/123slice.subx.html
+++ b/html/baremetal/123slice.subx.html
@@ -880,7 +880,7 @@ if ('onhashchange' in window) {
 <span id="L819" class="LineNr"> 819 </span>    73/jump-if-addr&gt;=  $write-slice:loop-end/disp8
 <span id="L820" class="LineNr"> 820 </span>    <span class="subxComment"># if (out-&gt;write &gt;= out-&gt;size) abort</span>
 <span id="L821" class="LineNr"> 821 </span>    39/compare                      3/mod/direct    3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          2/r32/edx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ebx with edx</span>
-<span id="L822" class="LineNr"> 822 </span>    7d/jump-if-&gt;=  $write-slice:abort/disp8
+<span id="L822" class="LineNr"> 822 </span>    7d/jump-if-&gt;=  $write-slice:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L823" class="LineNr"> 823 </span>    <span class="subxComment"># out-&gt;data[out-&gt;write] = *in</span>
 <span id="L824" class="LineNr"> 824 </span>    <span class="subxS1Comment"># . AL = *in</span>
 <span id="L825" class="LineNr"> 825 </span>    31/xor                          3/mod/direct    0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># clear eax</span>
@@ -908,8 +908,8 @@ if ('onhashchange' in window) {
 <span id="L847" class="LineNr"> 847 </span>    5d/pop-to-ebp
 <span id="L848" class="LineNr"> 848 </span>    c3/return
 <span id="L849" class="LineNr"> 849 </span>
-<span id="L850" class="LineNr"> 850 </span><span class="Constant">$write-slice:abort</span>:
-<span id="L851" class="LineNr"> 851 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;write-slice: out of space&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L850" class="LineNr"> 850 </span><span class="Constant">$write-slice:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L851" class="LineNr"> 851 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;write-slice: out of space&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L852" class="LineNr"> 852 </span>    {
 <span id="L853" class="LineNr"> 853 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L854" class="LineNr"> 854 </span>    }
@@ -950,7 +950,7 @@ if ('onhashchange' in window) {
 <span id="L889" class="LineNr"> 889 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
 <span id="L890" class="LineNr"> 890 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L891" class="LineNr"> 891 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L892" class="LineNr"> 892 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L892" class="LineNr"> 892 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L893" class="LineNr"> 893 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L894" class="LineNr"> 894 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L895" class="LineNr"> 895 </span>    <span class="subxS1Comment"># . epilogue</span>
@@ -995,7 +995,7 @@ if ('onhashchange' in window) {
 <span id="L934" class="LineNr"> 934 </span>    05/add-to-eax  4/imm32
 <span id="L935" class="LineNr"> 935 </span>    <span class="subxComment"># if (eax == 0) abort</span>
 <span id="L936" class="LineNr"> 936 </span>    3d/compare-eax-and  0/imm32
-<span id="L937" class="LineNr"> 937 </span>    74/jump-if-=  $slice-to-string:abort/disp8
+<span id="L937" class="LineNr"> 937 </span>    74/jump-if-=  $slice-to-string:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L938" class="LineNr"> 938 </span>    <span class="subxComment"># out-&gt;size = size-4</span>
 <span id="L939" class="LineNr"> 939 </span>    89/copy                         0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          1/r32/ecx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy ecx to *eax</span>
 <span id="L940" class="LineNr"> 940 </span>    81          5/subop/subtract    0/mod/indirect  0/rm32/eax   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              4/imm32           <span class="subxComment"># subtract 4 from *eax</span>
@@ -1030,8 +1030,8 @@ if ('onhashchange' in window) {
 <span id="L969" class="LineNr"> 969 </span>    5d/pop-to-ebp
 <span id="L970" class="LineNr"> 970 </span>    c3/return
 <span id="L971" class="LineNr"> 971 </span>
-<span id="L972" class="LineNr"> 972 </span><span class="Constant">$slice-to-string:abort</span>:
-<span id="L973" class="LineNr"> 973 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;slice-to-string: out of space\n&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L972" class="LineNr"> 972 </span><span class="Constant">$slice-to-string:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L973" class="LineNr"> 973 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;slice-to-string: out of space\n&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L974" class="LineNr"> 974 </span>    {
 <span id="L975" class="LineNr"> 975 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L976" class="LineNr"> 976 </span>    }
@@ -1077,7 +1077,7 @@ if ('onhashchange' in window) {
 <span id="L1016" class="LineNr">1016 </span>    8b/copy                         1/mod/*+disp8   3/rm32/ebx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/eax   4/disp8        <span class="Normal"> . </span>                <span class="subxComment"># copy *(ebx+4) to eax</span>
 <span id="L1017" class="LineNr">1017 </span>    <span class="subxComment"># skip payload-&gt;allocid</span>
 <span id="L1018" class="LineNr">1018 </span>    05/add-to-eax  4/imm32
-<span id="L1019" class="Folded">1019 </span><span class="Folded">+-- 26 lines: #?     # dump eax ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L1019" class="Folded">1019 </span><span class="Folded">+-- 26 lines: #?     # dump eax ---------------------------------------------------------------------------------------------------------------------------------------------------------</span>
 <span id="L1045" class="LineNr">1045 </span>    <span class="subxComment"># eax = string-equal?(eax, &quot;Abc&quot;)</span>
 <span id="L1046" class="LineNr">1046 </span>    <span class="subxS2Comment"># . . push args</span>
 <span id="L1047" class="LineNr">1047 </span>    68/push  <span class="Constant">&quot;Abc&quot;</span>/imm32
diff --git a/html/baremetal/126write-int-decimal.subx.html b/html/baremetal/126write-int-decimal.subx.html
index e1c786ea..c85343f0 100644
--- a/html/baremetal/126write-int-decimal.subx.html
+++ b/html/baremetal/126write-int-decimal.subx.html
@@ -150,7 +150,7 @@ if ('onhashchange' in window) {
 <span id="L89" class="LineNr"> 89 </span>    74/jump-if-=  $write-int32-decimal:write-break/disp8
 <span id="L90" class="LineNr"> 90 </span>    <span class="subxComment"># if (curr &gt;= max) abort</span>
 <span id="L91" class="LineNr"> 91 </span>    39/compare                      3/mod/direct    1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          3/r32/ebx  <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># compare ecx with ebx</span>
-<span id="L92" class="LineNr"> 92 </span>    73/jump-if-addr&gt;=  $write-int32-decimal:abort/disp8
+<span id="L92" class="LineNr"> 92 </span>    73/jump-if-addr&gt;=  $write-int32-decimal:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L93" class="LineNr"> 93 </span><span class="Constant">$write-int32-decimal:write-char</span>:
 <span id="L94" class="LineNr"> 94 </span>    <span class="subxComment"># *curr = AL</span>
 <span id="L95" class="LineNr"> 95 </span>    88/copy-byte                    0/mod/indirect  1/rm32/ecx   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>          0/r32/AL   <span class="Normal"> . </span>             <span class="Normal"> . </span>                <span class="subxComment"># copy AL to byte at *ecx</span>
@@ -174,8 +174,8 @@ if ('onhashchange' in window) {
 <span id="L113" class="LineNr">113 </span>    5d/pop-to-ebp
 <span id="L114" class="LineNr">114 </span>    c3/return
 <span id="L115" class="LineNr">115 </span>
-<span id="L116" class="LineNr">116 </span><span class="Constant">$write-int32-decimal:abort</span>:
-<span id="L117" class="LineNr">117 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;write-int32-decimal: stream out of space&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L116" class="LineNr">116 </span><span class="Constant">$write-int32-decimal:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L117" class="LineNr">117 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;write-int32-decimal: stream out of space&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L118" class="LineNr">118 </span>    {
 <span id="L119" class="LineNr">119 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L120" class="LineNr">120 </span>    }
@@ -205,7 +205,7 @@ if ('onhashchange' in window) {
 <span id="L144" class="LineNr">144 </span>    68/push  <span class="Constant">&quot;9&quot;</span>/imm32
 <span id="L145" class="LineNr">145 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L146" class="LineNr">146 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L147" class="LineNr">147 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L147" class="LineNr">147 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L148" class="LineNr">148 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L149" class="LineNr">149 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L150" class="LineNr">150 </span>    <span class="subxS1Comment"># . end</span>
@@ -235,7 +235,7 @@ if ('onhashchange' in window) {
 <span id="L174" class="LineNr">174 </span>    68/push  <span class="Constant">&quot;0&quot;</span>/imm32
 <span id="L175" class="LineNr">175 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L176" class="LineNr">176 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L177" class="LineNr">177 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L177" class="LineNr">177 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L178" class="LineNr">178 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L179" class="LineNr">179 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L180" class="LineNr">180 </span>    <span class="subxS1Comment"># . end</span>
@@ -265,7 +265,7 @@ if ('onhashchange' in window) {
 <span id="L204" class="LineNr">204 </span>    68/push  <span class="Constant">&quot;10&quot;</span>/imm32
 <span id="L205" class="LineNr">205 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L206" class="LineNr">206 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L207" class="LineNr">207 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L207" class="LineNr">207 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L208" class="LineNr">208 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L209" class="LineNr">209 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L210" class="LineNr">210 </span>    <span class="subxS1Comment"># . end</span>
@@ -289,14 +289,14 @@ if ('onhashchange' in window) {
 <span id="L228" class="LineNr">228 </span>    e8/call  <a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a>/disp32
 <span id="L229" class="LineNr">229 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L230" class="LineNr">230 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              8/imm32           <span class="subxComment"># add to esp</span>
-<span id="L231" class="Folded">231 </span><span class="Folded">+-- 26 lines: #?     # dump _test-stream ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L231" class="Folded">231 </span><span class="Folded">+-- 26 lines: #?     # dump _test-stream ------------------------------------------------------------------------------------------------------------------------------------------------</span>
 <span id="L257" class="LineNr">257 </span>    <span class="subxComment"># check-stream-equal(_test-stream, &quot;-9&quot;, msg)</span>
 <span id="L258" class="LineNr">258 </span>    <span class="subxS2Comment"># . . push args</span>
 <span id="L259" class="LineNr">259 </span>    68/push  <span class="Constant">&quot;F - test-write-int32-decimal-negative&quot;</span>/imm32
 <span id="L260" class="LineNr">260 </span>    68/push  <span class="Constant">&quot;-9&quot;</span>/imm32
 <span id="L261" class="LineNr">261 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L262" class="LineNr">262 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L263" class="LineNr">263 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L263" class="LineNr">263 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L264" class="LineNr">264 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L265" class="LineNr">265 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L266" class="LineNr">266 </span>    <span class="subxS1Comment"># . end</span>
@@ -326,7 +326,7 @@ if ('onhashchange' in window) {
 <span id="L290" class="LineNr">290 </span>    68/push  <span class="Constant">&quot;-10&quot;</span>/imm32
 <span id="L291" class="LineNr">291 </span>    68/push  <a href='108write.subx.html#L125'>_test-stream</a>/imm32
 <span id="L292" class="LineNr">292 </span>    <span class="subxS2Comment"># . . call</span>
-<span id="L293" class="LineNr">293 </span>    e8/call  <a href='109stream-equal.subx.html#L197'>check-stream-equal</a>/disp32
+<span id="L293" class="LineNr">293 </span>    e8/call  <a href='109stream-equal.subx.html#L194'>check-stream-equal</a>/disp32
 <span id="L294" class="LineNr">294 </span>    <span class="subxS2Comment"># . . discard args</span>
 <span id="L295" class="LineNr">295 </span>    81          0/subop/add         3/mod/direct    4/rm32/esp   <span class="Normal"> . </span>         <span class="Normal"> . </span>           <span class="Normal"> . </span>         <span class="Normal"> . </span>         <span class="Normal"> . </span>              0xc/imm32         <span class="subxComment"># add to esp</span>
 <span id="L296" class="LineNr">296 </span>    <span class="subxS1Comment"># . end</span>
@@ -440,11 +440,11 @@ if ('onhashchange' in window) {
 <span id="L404" class="LineNr">404 </span><span class="Constant">$to-decimal-digit:check0</span>:
 <span id="L405" class="LineNr">405 </span>    <span class="subxComment"># if (eax &lt; '0') goto abort</span>
 <span id="L406" class="LineNr">406 </span>    3d/compare-eax-with  0x30/imm32/0
-<span id="L407" class="LineNr">407 </span>    7c/jump-if-&lt;  $to-decimal-digit:abort/disp8
+<span id="L407" class="LineNr">407 </span>    7c/jump-if-&lt;  $to-decimal-digit:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L408" class="LineNr">408 </span><span class="Constant">$to-decimal-digit:check1</span>:
 <span id="L409" class="LineNr">409 </span>    <span class="subxComment"># if (eax &gt; '9') goto abort</span>
 <span id="L410" class="LineNr">410 </span>    3d/compare-eax-with  0x39/imm32/f
-<span id="L411" class="LineNr">411 </span>    7f/jump-if-&gt;  $to-decimal-digit:abort/disp8
+<span id="L411" class="LineNr">411 </span>    7f/jump-if-&gt;  $to-decimal-digit:<a href='501draw-text.mu.html#L519'>abort</a>/disp8
 <span id="L412" class="LineNr">412 </span><span class="Constant">$to-decimal-digit:digit</span>:
 <span id="L413" class="LineNr">413 </span>    <span class="subxComment"># return eax - '0'</span>
 <span id="L414" class="LineNr">414 </span>    2d/subtract-from-eax  0x30/imm32/0
@@ -454,8 +454,8 @@ if ('onhashchange' in window) {
 <span id="L418" class="LineNr">418 </span>    5d/pop-to-ebp
 <span id="L419" class="LineNr">419 </span>    c3/return
 <span id="L420" class="LineNr">420 </span>
-<span id="L421" class="LineNr">421 </span><span class="Constant">$to-decimal-digit:abort</span>:
-<span id="L422" class="LineNr">422 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;to-decimal-digit: not a digit character&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L421" class="LineNr">421 </span><span class="Constant">$to-decimal-digit:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L422" class="LineNr">422 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;to-decimal-digit: not a digit character&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L423" class="LineNr">423 </span>    {
 <span id="L424" class="LineNr">424 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L425" class="LineNr">425 </span>    }
diff --git a/html/baremetal/301array-equal.subx.html b/html/baremetal/301array-equal.subx.html
new file mode 100644
index 00000000..b3a727ff
--- /dev/null
+++ b/html/baremetal/301array-equal.subx.html
@@ -0,0 +1,496 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/301array-equal.subx</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.SpecialChar { color: #d70000; }
+.subxComment { color: #005faf; }
+.subxS1Comment { color: #0000af; }
+.LineNr { }
+.subxH1Comment { color: #005faf; text-decoration: underline; }
+.subxMinorFunction { color: #875f5f; }
+.subxTest { color: #5f8700; }
+.subxFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/301array-equal.subx'>https://github.com/akkartik/mu/blob/main/baremetal/301array-equal.subx</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="subxComment"># Comparing arrays of numbers.</span>
+<span id="L2" class="LineNr">  2 </span>
+<span id="L3" class="LineNr">  3 </span>== code
+<span id="L4" class="LineNr">  4 </span>
+<span id="L5" class="LineNr">  5 </span><span class="subxFunction">array-equal?</span>:  <span class="subxComment"># a: (addr array int), b: (addr array int) -&gt; result/eax: boolean</span>
+<span id="L6" class="LineNr">  6 </span>    <span class="subxComment"># pseudocode:</span>
+<span id="L7" class="LineNr">  7 </span>    <span class="subxComment">#   asize = a-&gt;size</span>
+<span id="L8" class="LineNr">  8 </span>    <span class="subxComment">#   if (asize != b-&gt;size) return false</span>
+<span id="L9" class="LineNr">  9 </span>    <span class="subxComment">#   i = 0</span>
+<span id="L10" class="LineNr"> 10 </span>    <span class="subxComment">#   curra = a-&gt;data</span>
+<span id="L11" class="LineNr"> 11 </span>    <span class="subxComment">#   currb = b-&gt;data</span>
+<span id="L12" class="LineNr"> 12 </span>    <span class="subxComment">#   while i &lt; asize</span>
+<span id="L13" class="LineNr"> 13 </span>    <span class="subxComment">#     i1 = *curra</span>
+<span id="L14" class="LineNr"> 14 </span>    <span class="subxComment">#     i2 = *currb</span>
+<span id="L15" class="LineNr"> 15 </span>    <span class="subxComment">#     if (c1 != c2) return false</span>
+<span id="L16" class="LineNr"> 16 </span>    <span class="subxComment">#     i+=4, curra+=4, currb+=4</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="subxComment">#   return true</span>
+<span id="L18" class="LineNr"> 18 </span>    <span class="subxComment">#</span>
+<span id="L19" class="LineNr"> 19 </span>    <span class="subxComment"># registers:</span>
+<span id="L20" class="LineNr"> 20 </span>    <span class="subxComment">#   i: ecx</span>
+<span id="L21" class="LineNr"> 21 </span>    <span class="subxComment">#   asize: edx</span>
+<span id="L22" class="LineNr"> 22 </span>    <span class="subxComment">#   curra: esi</span>
+<span id="L23" class="LineNr"> 23 </span>    <span class="subxComment">#   currb: edi</span>
+<span id="L24" class="LineNr"> 24 </span>    <span class="subxComment">#   i1: eax</span>
+<span id="L25" class="LineNr"> 25 </span>    <span class="subxComment">#   i2: ebx</span>
+<span id="L26" class="LineNr"> 26 </span>    <span class="subxComment">#</span>
+<span id="L27" class="LineNr"> 27 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L28" class="LineNr"> 28 </span>    55/push-ebp
+<span id="L29" class="LineNr"> 29 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L30" class="LineNr"> 30 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L31" class="LineNr"> 31 </span>    51/push-ecx
+<span id="L32" class="LineNr"> 32 </span>    52/push-edx
+<span id="L33" class="LineNr"> 33 </span>    53/push-ebx
+<span id="L34" class="LineNr"> 34 </span>    56/push-esi
+<span id="L35" class="LineNr"> 35 </span>    57/push-edi
+<span id="L36" class="LineNr"> 36 </span>    <span class="subxComment"># esi = a</span>
+<span id="L37" class="LineNr"> 37 </span>    8b/-&gt; *(ebp+8) 6/r32/esi
+<span id="L38" class="LineNr"> 38 </span>    <span class="subxComment"># edi = b</span>
+<span id="L39" class="LineNr"> 39 </span>    8b/-&gt; *(ebp+0xc) 7/r32/edi
+<span id="L40" class="LineNr"> 40 </span>    <span class="subxComment"># var asize/edx: int = a-&gt;size</span>
+<span id="L41" class="LineNr"> 41 </span>    8b/-&gt; *esi 2/r32/edx
+<span id="L42" class="LineNr"> 42 </span><span class="Constant">$array-equal?:sizes</span>:
+<span id="L43" class="LineNr"> 43 </span>    <span class="subxComment"># if (asize != b-&gt;size) return false</span>
+<span id="L44" class="LineNr"> 44 </span>    39/compare *edi 2/r32/edx
+<span id="L45" class="LineNr"> 45 </span>    75/jump-if-!= $array-equal?:false/disp8
+<span id="L46" class="LineNr"> 46 </span>    <span class="subxComment"># var curra/esi: (addr byte) = a-&gt;data</span>
+<span id="L47" class="LineNr"> 47 </span>    81 0/subop/add %esi 4/imm32
+<span id="L48" class="LineNr"> 48 </span>    <span class="subxComment"># var currb/edi: (addr byte) = b-&gt;data</span>
+<span id="L49" class="LineNr"> 49 </span>    81 0/subop/add %edi 4/imm32
+<span id="L50" class="LineNr"> 50 </span>    <span class="subxComment"># var i/ecx: int = 0</span>
+<span id="L51" class="LineNr"> 51 </span>    31/xor-with %ecx 1/r32/ecx
+<span id="L52" class="LineNr"> 52 </span>    <span class="subxComment"># var vala/eax: int</span>
+<span id="L53" class="LineNr"> 53 </span>    <span class="subxComment"># var valb/ebx: int</span>
+<span id="L54" class="LineNr"> 54 </span><span class="Constant">$array-equal?:loop</span>:
+<span id="L55" class="LineNr"> 55 </span>    <span class="subxComment"># if (i &gt;= asize) return true</span>
+<span id="L56" class="LineNr"> 56 </span>    39/compare %ecx 2/r32/edx
+<span id="L57" class="LineNr"> 57 </span>    7d/jump-if-&gt;= $array-equal?:true/disp8
+<span id="L58" class="LineNr"> 58 </span>    <span class="subxComment"># var vala/eax: int = *curra</span>
+<span id="L59" class="LineNr"> 59 </span>    8b/-&gt; *esi 0/r32/eax
+<span id="L60" class="LineNr"> 60 </span>    <span class="subxComment"># var valb/ebx: int = *currb</span>
+<span id="L61" class="LineNr"> 61 </span>    8b/-&gt; *edi 3/r32/ebx
+<span id="L62" class="LineNr"> 62 </span>    <span class="subxComment"># if (vala != valb) return false</span>
+<span id="L63" class="LineNr"> 63 </span>    39/compare %eax 3/r32/ebx
+<span id="L64" class="LineNr"> 64 </span>    75/jump-if-!= $array-equal?:false/disp8
+<span id="L65" class="LineNr"> 65 </span>    <span class="subxComment"># i += 4</span>
+<span id="L66" class="LineNr"> 66 </span>    81 0/subop/add %ecx 4/imm32
+<span id="L67" class="LineNr"> 67 </span>    <span class="subxComment"># currs += 4</span>
+<span id="L68" class="LineNr"> 68 </span>    81 0/subop/add %esi 4/imm32
+<span id="L69" class="LineNr"> 69 </span>    <span class="subxComment"># currb += 4</span>
+<span id="L70" class="LineNr"> 70 </span>    81 0/subop/add %edi 4/imm32
+<span id="L71" class="LineNr"> 71 </span>    eb/jump $array-equal?:<span class="Constant">loop</span>/disp8
+<span id="L72" class="LineNr"> 72 </span><span class="Constant">$array-equal?:true</span>:
+<span id="L73" class="LineNr"> 73 </span>    b8/copy-to-eax 1/imm32
+<span id="L74" class="LineNr"> 74 </span>    eb/jump $array-equal?:end/disp8
+<span id="L75" class="LineNr"> 75 </span><span class="Constant">$array-equal?:false</span>:
+<span id="L76" class="LineNr"> 76 </span>    b8/copy-to-eax 0/imm32
+<span id="L77" class="LineNr"> 77 </span><span class="Constant">$array-equal?:end</span>:
+<span id="L78" class="LineNr"> 78 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L79" class="LineNr"> 79 </span>    5f/pop-to-edi
+<span id="L80" class="LineNr"> 80 </span>    5e/pop-to-esi
+<span id="L81" class="LineNr"> 81 </span>    5b/pop-to-ebx
+<span id="L82" class="LineNr"> 82 </span>    5a/pop-to-edx
+<span id="L83" class="LineNr"> 83 </span>    59/pop-to-ecx
+<span id="L84" class="LineNr"> 84 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L85" class="LineNr"> 85 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L86" class="LineNr"> 86 </span>    5d/pop-to-ebp
+<span id="L87" class="LineNr"> 87 </span>    c3/return
+<span id="L88" class="LineNr"> 88 </span>
+<span id="L89" class="LineNr"> 89 </span><span class="subxTest">test-compare-empty-with-empty-array</span>:
+<span id="L90" class="LineNr"> 90 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L91" class="LineNr"> 91 </span>    55/push-ebp
+<span id="L92" class="LineNr"> 92 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L93" class="LineNr"> 93 </span>    <span class="subxComment"># var ecx: (array _) = []</span>
+<span id="L94" class="LineNr"> 94 </span>    68/push 0/imm32/size
+<span id="L95" class="LineNr"> 95 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L96" class="LineNr"> 96 </span>    <span class="subxComment"># var edx: (array _) = []</span>
+<span id="L97" class="LineNr"> 97 </span>    68/push 0/imm32/size
+<span id="L98" class="LineNr"> 98 </span>    89/&lt;- %edx 4/r32/esp
+<span id="L99" class="LineNr"> 99 </span>    <span class="subxComment">#</span>
+<span id="L100" class="LineNr">100 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %edx)  <span class="subxComment"># =&gt; eax</span>
+<span id="L101" class="LineNr">101 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">&quot;F - test-compare-empty-with-empty-array&quot;</span>)
+<span id="L102" class="LineNr">102 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L103" class="LineNr">103 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L104" class="LineNr">104 </span>    5d/pop-to-ebp
+<span id="L105" class="LineNr">105 </span>    c3/return
+<span id="L106" class="LineNr">106 </span>
+<span id="L107" class="LineNr">107 </span><span class="subxTest">test-compare-empty-with-non-empty-array</span>:  <span class="subxComment"># also checks size-mismatch code path</span>
+<span id="L108" class="LineNr">108 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L109" class="LineNr">109 </span>    55/push-ebp
+<span id="L110" class="LineNr">110 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L111" class="LineNr">111 </span>    <span class="subxComment"># var ecx: (array int) = [1]</span>
+<span id="L112" class="LineNr">112 </span>    68/push 1/imm32
+<span id="L113" class="LineNr">113 </span>    68/push 4/imm32/size
+<span id="L114" class="LineNr">114 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L115" class="LineNr">115 </span>    <span class="subxComment"># var edx: (array int) = []</span>
+<span id="L116" class="LineNr">116 </span>    68/push 0/imm32/size
+<span id="L117" class="LineNr">117 </span>    89/&lt;- %edx 4/r32/esp
+<span id="L118" class="LineNr">118 </span>    <span class="subxComment">#</span>
+<span id="L119" class="LineNr">119 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %edx)  <span class="subxComment"># =&gt; eax</span>
+<span id="L120" class="LineNr">120 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 0 <span class="Constant">&quot;F - test-compare-empty-with-non-empty-array&quot;</span>)
+<span id="L121" class="LineNr">121 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L122" class="LineNr">122 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L123" class="LineNr">123 </span>    5d/pop-to-ebp
+<span id="L124" class="LineNr">124 </span>    c3/return
+<span id="L125" class="LineNr">125 </span>
+<span id="L126" class="LineNr">126 </span><span class="subxTest">test-compare-equal-arrays</span>:
+<span id="L127" class="LineNr">127 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L128" class="LineNr">128 </span>    55/push-ebp
+<span id="L129" class="LineNr">129 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L130" class="LineNr">130 </span>    <span class="subxComment"># var ecx: (array int) = [1, 2, 3]</span>
+<span id="L131" class="LineNr">131 </span>    68/push 3/imm32
+<span id="L132" class="LineNr">132 </span>    68/push 2/imm32
+<span id="L133" class="LineNr">133 </span>    68/push 1/imm32
+<span id="L134" class="LineNr">134 </span>    68/push 0xc/imm32/size
+<span id="L135" class="LineNr">135 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L136" class="LineNr">136 </span>    <span class="subxComment"># var edx: (array int) = [1, 2, 3]</span>
+<span id="L137" class="LineNr">137 </span>    68/push 3/imm32
+<span id="L138" class="LineNr">138 </span>    68/push 2/imm32
+<span id="L139" class="LineNr">139 </span>    68/push 1/imm32
+<span id="L140" class="LineNr">140 </span>    68/push 0xc/imm32/size
+<span id="L141" class="LineNr">141 </span>    89/&lt;- %edx 4/r32/esp
+<span id="L142" class="LineNr">142 </span>    <span class="subxComment">#</span>
+<span id="L143" class="LineNr">143 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %edx)  <span class="subxComment"># =&gt; eax</span>
+<span id="L144" class="LineNr">144 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">&quot;F - test-compare-equal-arrays&quot;</span>)
+<span id="L145" class="LineNr">145 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L146" class="LineNr">146 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L147" class="LineNr">147 </span>    5d/pop-to-ebp
+<span id="L148" class="LineNr">148 </span>    c3/return
+<span id="L149" class="LineNr">149 </span>
+<span id="L150" class="LineNr">150 </span><span class="subxTest">test-compare-inequal-arrays-equal-sizes</span>:
+<span id="L151" class="LineNr">151 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L152" class="LineNr">152 </span>    55/push-ebp
+<span id="L153" class="LineNr">153 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L154" class="LineNr">154 </span>    <span class="subxComment"># var ecx: (array int) = [1, 4, 3]</span>
+<span id="L155" class="LineNr">155 </span>    68/push 3/imm32
+<span id="L156" class="LineNr">156 </span>    68/push 4/imm32
+<span id="L157" class="LineNr">157 </span>    68/push 1/imm32
+<span id="L158" class="LineNr">158 </span>    68/push 0xc/imm32/size
+<span id="L159" class="LineNr">159 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L160" class="LineNr">160 </span>    <span class="subxComment"># var edx: (array int) = [1, 2, 3]</span>
+<span id="L161" class="LineNr">161 </span>    68/push 3/imm32
+<span id="L162" class="LineNr">162 </span>    68/push 2/imm32
+<span id="L163" class="LineNr">163 </span>    68/push 1/imm32
+<span id="L164" class="LineNr">164 </span>    68/push 0xc/imm32/size
+<span id="L165" class="LineNr">165 </span>    89/&lt;- %edx 4/r32/esp
+<span id="L166" class="LineNr">166 </span>    <span class="subxComment">#</span>
+<span id="L167" class="LineNr">167 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %edx)  <span class="subxComment"># =&gt; eax</span>
+<span id="L168" class="LineNr">168 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 0 <span class="Constant">&quot;F - test-compare-inequal-arrays-equal-sizes&quot;</span>)
+<span id="L169" class="LineNr">169 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L170" class="LineNr">170 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L171" class="LineNr">171 </span>    5d/pop-to-ebp
+<span id="L172" class="LineNr">172 </span>    c3/return
+<span id="L173" class="LineNr">173 </span>
+<span id="L174" class="LineNr">174 </span><span class="subxMinorFunction">_parse-array-of-ints</span>:  <span class="subxComment"># ad: (addr allocation-descriptor), s: (addr array byte), out: (addr handle array int)</span>
+<span id="L175" class="LineNr">175 </span>    <span class="subxComment"># pseudocode</span>
+<span id="L176" class="LineNr">176 </span>    <span class="subxComment">#   end = &amp;s-&gt;data[s-&gt;size]</span>
+<span id="L177" class="LineNr">177 </span>    <span class="subxComment">#   curr = s-&gt;data</span>
+<span id="L178" class="LineNr">178 </span>    <span class="subxComment">#   size = 0</span>
+<span id="L179" class="LineNr">179 </span>    <span class="subxComment">#   while true</span>
+<span id="L180" class="LineNr">180 </span>    <span class="subxComment">#     if (curr &gt;= end) break</span>
+<span id="L181" class="LineNr">181 </span>    <span class="subxComment">#     curr = skip-chars-matching-in-slice(curr, end, ' ')</span>
+<span id="L182" class="LineNr">182 </span>    <span class="subxComment">#     if (curr &gt;= end) break</span>
+<span id="L183" class="LineNr">183 </span>    <span class="subxComment">#     curr = skip-chars-not-matching-in-slice(curr, end, ' ')</span>
+<span id="L184" class="LineNr">184 </span>    <span class="subxComment">#     ++size</span>
+<span id="L185" class="LineNr">185 </span>    <span class="subxComment">#   allocate-array(ad, size*4, out)</span>
+<span id="L186" class="LineNr">186 </span>    <span class="subxComment">#   var slice: slice = {s-&gt;data, 0}</span>
+<span id="L187" class="LineNr">187 </span>    <span class="subxComment">#   curr = lookup(out)-&gt;data</span>
+<span id="L188" class="LineNr">188 </span>    <span class="subxComment">#   while true</span>
+<span id="L189" class="LineNr">189 </span>    <span class="subxComment">#     if (slice-&gt;start &gt;= end) break</span>
+<span id="L190" class="LineNr">190 </span>    <span class="subxComment">#     slice-&gt;start = skip-chars-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L191" class="LineNr">191 </span>    <span class="subxComment">#     if (slice-&gt;start &gt;= end) break</span>
+<span id="L192" class="LineNr">192 </span>    <span class="subxComment">#     slice-&gt;end = skip-chars-not-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L193" class="LineNr">193 </span>    <span class="subxComment">#     *curr = parse-hex-int-from-slice(slice)</span>
+<span id="L194" class="LineNr">194 </span>    <span class="subxComment">#     curr += 4</span>
+<span id="L195" class="LineNr">195 </span>    <span class="subxComment">#     slice-&gt;start = slice-&gt;end</span>
+<span id="L196" class="LineNr">196 </span>    <span class="subxComment">#   return result</span>
+<span id="L197" class="LineNr">197 </span>    <span class="subxComment">#</span>
+<span id="L198" class="LineNr">198 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L199" class="LineNr">199 </span>    55/push-ebp
+<span id="L200" class="LineNr">200 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L201" class="LineNr">201 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L202" class="LineNr">202 </span>    50/push-eax
+<span id="L203" class="LineNr">203 </span>    51/push-ecx
+<span id="L204" class="LineNr">204 </span>    52/push-edx
+<span id="L205" class="LineNr">205 </span>    53/push-ebx
+<span id="L206" class="LineNr">206 </span>    56/push-esi
+<span id="L207" class="LineNr">207 </span>    57/push-edi
+<span id="L208" class="LineNr">208 </span>    <span class="subxComment"># esi = s</span>
+<span id="L209" class="LineNr">209 </span>    8b/-&gt; *(ebp+0xc) 6/r32/esi
+<span id="L210" class="LineNr">210 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = s-&gt;data</span>
+<span id="L211" class="LineNr">211 </span>    8d/copy-address *(esi+4) 1/r32/ecx
+<span id="L212" class="LineNr">212 </span>    <span class="subxComment"># var end/edx: (addr byte) = &amp;s-&gt;data[s-&gt;size]</span>
+<span id="L213" class="LineNr">213 </span>    <span class="subxS1Comment"># . edx = s-&gt;size</span>
+<span id="L214" class="LineNr">214 </span>    8b/-&gt; *esi 2/r32/edx
+<span id="L215" class="LineNr">215 </span>    <span class="subxS1Comment"># . edx += curr</span>
+<span id="L216" class="LineNr">216 </span>    01/add-to %edx 1/r32/ecx
+<span id="L217" class="LineNr">217 </span>    <span class="subxComment"># var size/ebx: int = 0</span>
+<span id="L218" class="LineNr">218 </span>    31/xor-with %ebx 3/r32/ebx
+<span id="L219" class="LineNr">219 </span><span class="Constant">$_parse-array-of-ints:loop1</span>:
+<span id="L220" class="LineNr">220 </span>    <span class="subxComment"># if (curr &gt;= end) break</span>
+<span id="L221" class="LineNr">221 </span>    39/compare %ecx 2/r32/edx
+<span id="L222" class="LineNr">222 </span>    73/jump-if-addr&gt;= $_parse-array-of-ints:break1/disp8
+<span id="L223" class="LineNr">223 </span>    <span class="subxComment"># curr = skip-chars-matching-in-slice(curr, end, ' ')</span>
+<span id="L224" class="LineNr">224 </span>    (<a href='124next-token.subx.html#L804'>skip-chars-matching-in-slice</a> %ecx %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L225" class="LineNr">225 </span>    89/&lt;- %ecx 0/r32/eax
+<span id="L226" class="LineNr">226 </span>    <span class="subxComment"># if (curr &gt;= end) break</span>
+<span id="L227" class="LineNr">227 </span>    39/compare %ecx 2/r32/edx
+<span id="L228" class="LineNr">228 </span>    73/jump-if-addr&gt;= $_parse-array-of-ints:break1/disp8
+<span id="L229" class="LineNr">229 </span>    <span class="subxComment"># curr = skip-chars-not-matching-in-slice(curr, end, ' ')</span>
+<span id="L230" class="LineNr">230 </span>    (<a href='124next-token.subx.html#L973'>skip-chars-not-matching-in-slice</a> %ecx %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L231" class="LineNr">231 </span>    89/&lt;- %ecx 0/r32/eax
+<span id="L232" class="LineNr">232 </span>    <span class="subxComment"># size += 4</span>
+<span id="L233" class="LineNr">233 </span>    81 0/subop/add %ebx 4/imm32
+<span id="L234" class="LineNr">234 </span>    eb/jump $_parse-array-of-ints:loop1/disp8
+<span id="L235" class="LineNr">235 </span><span class="Constant">$_parse-array-of-ints:break1</span>:
+<span id="L236" class="LineNr">236 </span>    (<a href='120allocate.subx.html#L535'>allocate-array</a> *(ebp+8) %ebx *(ebp+0x10))
+<span id="L237" class="LineNr">237 </span><span class="Constant">$_parse-array-of-ints:pass2</span>:
+<span id="L238" class="LineNr">238 </span>    <span class="subxComment"># var slice/edi: slice = {s-&gt;data, 0}</span>
+<span id="L239" class="LineNr">239 </span>    68/push 0/imm32/end
+<span id="L240" class="LineNr">240 </span>    8d/copy-address *(esi+4) 7/r32/edi
+<span id="L241" class="LineNr">241 </span>    57/push-edi
+<span id="L242" class="LineNr">242 </span>    89/&lt;- %edi 4/r32/esp
+<span id="L243" class="LineNr">243 </span>    <span class="subxComment"># curr = lookup(out)-&gt;data</span>
+<span id="L244" class="LineNr">244 </span>    8b/-&gt; *(ebp+0x10) 0/r32/eax
+<span id="L245" class="LineNr">245 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *eax *(eax+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L246" class="LineNr">246 </span>    8d/copy-address *(eax+4) 1/r32/ecx
+<span id="L247" class="LineNr">247 </span><span class="Constant">$_parse-array-of-ints:loop2</span>:
+<span id="L248" class="LineNr">248 </span>    <span class="subxComment"># if (slice-&gt;start &gt;= end) break</span>
+<span id="L249" class="LineNr">249 </span>    39/compare *edi 2/r32/edx
+<span id="L250" class="LineNr">250 </span>    73/jump-if-addr&gt;= $_parse-array-of-ints:end/disp8
+<span id="L251" class="LineNr">251 </span>    <span class="subxComment"># slice-&gt;start = skip-chars-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L252" class="LineNr">252 </span>    (<a href='124next-token.subx.html#L804'>skip-chars-matching-in-slice</a> *edi %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L253" class="LineNr">253 </span>    89/&lt;- *edi 0/r32/eax
+<span id="L254" class="LineNr">254 </span>    <span class="subxComment"># if (slice-&gt;start &gt;= end) break</span>
+<span id="L255" class="LineNr">255 </span>    39/compare *edi 2/r32/edx
+<span id="L256" class="LineNr">256 </span>    73/jump-if-addr&gt;= $_parse-array-of-ints:end/disp8
+<span id="L257" class="LineNr">257 </span>    <span class="subxComment"># slice-&gt;end = skip-chars-not-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L258" class="LineNr">258 </span>    (<a href='124next-token.subx.html#L973'>skip-chars-not-matching-in-slice</a> *edi %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L259" class="LineNr">259 </span>    89/&lt;- *(edi+4) 0/r32/eax
+<span id="L260" class="LineNr">260 </span>    <span class="subxComment"># *curr = parse-hex-int-from-slice(slice)</span>
+<span id="L261" class="LineNr">261 </span>    (<a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a> %edi)
+<span id="L262" class="LineNr">262 </span>    89/&lt;- *ecx 0/r32/eax
+<span id="L263" class="LineNr">263 </span>    <span class="subxComment"># curr += 4</span>
+<span id="L264" class="LineNr">264 </span>    81 0/subop/add %ecx 4/imm32
+<span id="L265" class="LineNr">265 </span>    <span class="subxComment"># slice-&gt;start = slice-&gt;end</span>
+<span id="L266" class="LineNr">266 </span>    8b/-&gt; *(edi+4) 0/r32/eax
+<span id="L267" class="LineNr">267 </span>    89/&lt;- *edi 0/r32/eax
+<span id="L268" class="LineNr">268 </span>    eb/jump $_parse-array-of-ints:loop2/disp8
+<span id="L269" class="LineNr">269 </span><span class="Constant">$_parse-array-of-ints:end</span>:
+<span id="L270" class="LineNr">270 </span>    <span class="subxS1Comment"># . reclaim locals</span>
+<span id="L271" class="LineNr">271 </span>    81 0/subop/add %esp 8/imm32
+<span id="L272" class="LineNr">272 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L273" class="LineNr">273 </span>    5f/pop-to-edi
+<span id="L274" class="LineNr">274 </span>    5e/pop-to-esi
+<span id="L275" class="LineNr">275 </span>    5b/pop-to-ebx
+<span id="L276" class="LineNr">276 </span>    5a/pop-to-edx
+<span id="L277" class="LineNr">277 </span>    59/pop-to-ecx
+<span id="L278" class="LineNr">278 </span>    58/pop-to-eax
+<span id="L279" class="LineNr">279 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L280" class="LineNr">280 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L281" class="LineNr">281 </span>    5d/pop-to-ebp
+<span id="L282" class="LineNr">282 </span>    c3/return
+<span id="L283" class="LineNr">283 </span>
+<span id="L284" class="LineNr">284 </span><span class="subxTest">test-parse-array-of-ints</span>:
+<span id="L285" class="LineNr">285 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L286" class="LineNr">286 </span>    55/push-ebp
+<span id="L287" class="LineNr">287 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L288" class="LineNr">288 </span>    <span class="subxComment"># var h/esi: (handle array int)</span>
+<span id="L289" class="LineNr">289 </span>    68/push 0/imm32
+<span id="L290" class="LineNr">290 </span>    68/push 0/imm32
+<span id="L291" class="LineNr">291 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L292" class="LineNr">292 </span>    <span class="subxComment"># var ecx: (array int) = [1, 2, 3]</span>
+<span id="L293" class="LineNr">293 </span>    68/push 3/imm32
+<span id="L294" class="LineNr">294 </span>    68/push 2/imm32
+<span id="L295" class="LineNr">295 </span>    68/push 1/imm32
+<span id="L296" class="LineNr">296 </span>    68/push 0xc/imm32/size
+<span id="L297" class="LineNr">297 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L298" class="LineNr">298 </span>    <span class="subxComment">#</span>
+<span id="L299" class="LineNr">299 </span>    (<a href='301array-equal.subx.html#L174'>_parse-array-of-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="Constant">&quot;1 2 3&quot;</span> %esi)
+<span id="L300" class="LineNr">300 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L301" class="LineNr">301 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %eax)  <span class="subxComment"># =&gt; eax</span>
+<span id="L302" class="LineNr">302 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">&quot;F - test-parse-array-of-ints&quot;</span>)
+<span id="L303" class="LineNr">303 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L304" class="LineNr">304 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L305" class="LineNr">305 </span>    5d/pop-to-ebp
+<span id="L306" class="LineNr">306 </span>    c3/return
+<span id="L307" class="LineNr">307 </span>
+<span id="L308" class="LineNr">308 </span><span class="subxTest">test-parse-array-of-ints-empty</span>:
+<span id="L309" class="LineNr">309 </span>    <span class="subxH1Comment"># - empty string = empty array</span>
+<span id="L310" class="LineNr">310 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L311" class="LineNr">311 </span>    55/push-ebp
+<span id="L312" class="LineNr">312 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L313" class="LineNr">313 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L314" class="LineNr">314 </span>    68/push 0/imm32
+<span id="L315" class="LineNr">315 </span>    68/push 0/imm32
+<span id="L316" class="LineNr">316 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L317" class="LineNr">317 </span>    <span class="subxComment">#</span>
+<span id="L318" class="LineNr">318 </span>    (<a href='301array-equal.subx.html#L174'>_parse-array-of-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="Constant">&quot;&quot;</span> %esi)
+<span id="L319" class="LineNr">319 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L320" class="LineNr">320 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> *eax 0 <span class="Constant">&quot;F - test-parse-array-of-ints-empty&quot;</span>)
+<span id="L321" class="LineNr">321 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L322" class="LineNr">322 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L323" class="LineNr">323 </span>    5d/pop-to-ebp
+<span id="L324" class="LineNr">324 </span>    c3/return
+<span id="L325" class="LineNr">325 </span>
+<span id="L326" class="LineNr">326 </span><span class="subxTest">test-parse-array-of-ints-just-whitespace</span>:
+<span id="L327" class="LineNr">327 </span>    <span class="subxH1Comment"># - just whitespace = empty array</span>
+<span id="L328" class="LineNr">328 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L329" class="LineNr">329 </span>    55/push-ebp
+<span id="L330" class="LineNr">330 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L331" class="LineNr">331 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L332" class="LineNr">332 </span>    68/push 0/imm32
+<span id="L333" class="LineNr">333 </span>    68/push 0/imm32
+<span id="L334" class="LineNr">334 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L335" class="LineNr">335 </span>    <span class="subxComment">#</span>
+<span id="L336" class="LineNr">336 </span>    (<a href='301array-equal.subx.html#L174'>_parse-array-of-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="SpecialChar"><a href='301array-equal.subx.html#L428'>Space</a></span> %esi)
+<span id="L337" class="LineNr">337 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L338" class="LineNr">338 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> *eax 0 <span class="Constant">&quot;F - test-parse-array-of-ints-just-whitespace&quot;</span>)
+<span id="L339" class="LineNr">339 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L340" class="LineNr">340 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L341" class="LineNr">341 </span>    5d/pop-to-ebp
+<span id="L342" class="LineNr">342 </span>    c3/return
+<span id="L343" class="LineNr">343 </span>
+<span id="L344" class="LineNr">344 </span><span class="subxTest">test-parse-array-of-ints-extra-whitespace</span>:
+<span id="L345" class="LineNr">345 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L346" class="LineNr">346 </span>    55/push-ebp
+<span id="L347" class="LineNr">347 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L348" class="LineNr">348 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L349" class="LineNr">349 </span>    68/push 0/imm32
+<span id="L350" class="LineNr">350 </span>    68/push 0/imm32
+<span id="L351" class="LineNr">351 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L352" class="LineNr">352 </span>    <span class="subxComment"># var ecx: (array int) = [1, 2, 3]</span>
+<span id="L353" class="LineNr">353 </span>    68/push 3/imm32
+<span id="L354" class="LineNr">354 </span>    68/push 2/imm32
+<span id="L355" class="LineNr">355 </span>    68/push 1/imm32
+<span id="L356" class="LineNr">356 </span>    68/push 0xc/imm32/size
+<span id="L357" class="LineNr">357 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L358" class="LineNr">358 </span>    <span class="subxComment">#</span>
+<span id="L359" class="LineNr">359 </span>    (<a href='301array-equal.subx.html#L174'>_parse-array-of-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="Constant">&quot; 1 2  3  &quot;</span> %esi)
+<span id="L360" class="LineNr">360 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L361" class="LineNr">361 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %eax)  <span class="subxComment"># =&gt; eax</span>
+<span id="L362" class="LineNr">362 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">&quot;F - test-parse-array-of-ints-extra-whitespace&quot;</span>)
+<span id="L363" class="LineNr">363 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L364" class="LineNr">364 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L365" class="LineNr">365 </span>    5d/pop-to-ebp
+<span id="L366" class="LineNr">366 </span>    c3/return
+<span id="L367" class="LineNr">367 </span>
+<span id="L368" class="LineNr">368 </span><span class="subxFunction">parse-array-of-ints</span>:  <span class="subxComment"># s: (addr array byte), out: (addr handle array int)</span>
+<span id="L369" class="LineNr">369 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L370" class="LineNr">370 </span>    55/push-ebp
+<span id="L371" class="LineNr">371 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L372" class="LineNr">372 </span>    <span class="subxComment">#</span>
+<span id="L373" class="LineNr">373 </span>    (<a href='301array-equal.subx.html#L174'>_parse-array-of-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> *(ebp+8) *(ebp+0xc))
+<span id="L374" class="LineNr">374 </span><span class="Constant">$parse-array-of-ints:end</span>:
+<span id="L375" class="LineNr">375 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L376" class="LineNr">376 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L377" class="LineNr">377 </span>    5d/pop-to-ebp
+<span id="L378" class="LineNr">378 </span>    c3/return
+<span id="L379" class="LineNr">379 </span>
+<span id="L380" class="LineNr">380 </span><span class="subxComment"># helper for later tests</span>
+<span id="L381" class="LineNr">381 </span><span class="subxComment"># compare an array with a string representation of an array literal</span>
+<span id="L382" class="LineNr">382 </span><span class="subxFunction">check-array-equal</span>:  <span class="subxComment"># a: (addr array int), expected: (addr string), msg: (addr string)</span>
+<span id="L383" class="LineNr">383 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L384" class="LineNr">384 </span>    55/push-ebp
+<span id="L385" class="LineNr">385 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L386" class="LineNr">386 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L387" class="LineNr">387 </span>    50/push-eax
+<span id="L388" class="LineNr">388 </span>    56/push-esi
+<span id="L389" class="LineNr">389 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L390" class="LineNr">390 </span>    68/push 0/imm32
+<span id="L391" class="LineNr">391 </span>    68/push 0/imm32
+<span id="L392" class="LineNr">392 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L393" class="LineNr">393 </span>    <span class="subxComment"># var b/eax: (addr array int) = parse-array-of-ints(Heap, expected)</span>
+<span id="L394" class="LineNr">394 </span>    (<a href='301array-equal.subx.html#L368'>parse-array-of-ints</a> *(ebp+0xc) %esi)
+<span id="L395" class="LineNr">395 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L396" class="LineNr">396 </span>    <span class="subxComment">#</span>
+<span id="L397" class="LineNr">397 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> *(ebp+8) %eax)
+<span id="L398" class="LineNr">398 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 *(ebp+0x10))
+<span id="L399" class="LineNr">399 </span><span class="Constant">$check-array-equal:end</span>:
+<span id="L400" class="LineNr">400 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L401" class="LineNr">401 </span>    5e/pop-to-esi
+<span id="L402" class="LineNr">402 </span>    58/pop-to-eax
+<span id="L403" class="LineNr">403 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L404" class="LineNr">404 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L405" class="LineNr">405 </span>    5d/pop-to-ebp
+<span id="L406" class="LineNr">406 </span>    c3/return
+<span id="L407" class="LineNr">407 </span>
+<span id="L408" class="LineNr">408 </span><span class="subxTest">test-check-array-equal</span>:
+<span id="L409" class="LineNr">409 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L410" class="LineNr">410 </span>    55/push-ebp
+<span id="L411" class="LineNr">411 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L412" class="LineNr">412 </span>    <span class="subxComment"># var ecx: (array int) = [1, 2, 3]</span>
+<span id="L413" class="LineNr">413 </span>    68/push 3/imm32
+<span id="L414" class="LineNr">414 </span>    68/push 2/imm32
+<span id="L415" class="LineNr">415 </span>    68/push 1/imm32
+<span id="L416" class="LineNr">416 </span>    68/push 0xc/imm32/size
+<span id="L417" class="LineNr">417 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L418" class="LineNr">418 </span>    <span class="subxComment">#</span>
+<span id="L419" class="LineNr">419 </span>    (<a href='301array-equal.subx.html#L382'>check-array-equal</a> %ecx <span class="Constant">&quot;1 2 3&quot;</span> <span class="Constant">&quot;F - test-check-array-equal&quot;</span>)
+<span id="L420" class="LineNr">420 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L421" class="LineNr">421 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L422" class="LineNr">422 </span>    5d/pop-to-ebp
+<span id="L423" class="LineNr">423 </span>    c3/return
+<span id="L424" class="LineNr">424 </span>
+<span id="L425" class="LineNr">425 </span>== data
+<span id="L426" class="LineNr">426 </span>
+<span id="L427" class="LineNr">427 </span><span class="subxComment"># length-prefixed string containing just a single space</span>
+<span id="L428" class="LineNr">428 </span><span class="SpecialChar">Space</span>:  <span class="subxComment"># (array byte)</span>
+<span id="L429" class="LineNr">429 </span>    <span class="subxComment"># size: int</span>
+<span id="L430" class="LineNr">430 </span>    1/imm32
+<span id="L431" class="LineNr">431 </span>    <span class="subxComment"># data</span>
+<span id="L432" class="LineNr">432 </span>    20/space
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/309stream.subx.html b/html/baremetal/309stream.subx.html
index a82b6792..65ecbe81 100644
--- a/html/baremetal/309stream.subx.html
+++ b/html/baremetal/309stream.subx.html
@@ -125,7 +125,7 @@ if ('onhashchange' in window) {
 <span id="L69" class="LineNr"> 69 </span>    8b/-&gt; *(ebp+0x10) 1/r32/ecx
 <span id="L70" class="LineNr"> 70 </span>    01/add-to %ecx 2/r32/edx
 <span id="L71" class="LineNr"> 71 </span>    3b/compare 1/r32/ecx *(edi+8)
-<span id="L72" class="LineNr"> 72 </span>    0f 8f/jump-if-&gt; $write-to-stream:abort/disp32
+<span id="L72" class="LineNr"> 72 </span>    0f 8f/jump-if-&gt; $write-to-stream:<a href='501draw-text.mu.html#L519'>abort</a>/disp32
 <span id="L73" class="LineNr"> 73 </span>    <span class="subxComment"># var out/edx: (addr byte) = s-&gt;data + s-&gt;write</span>
 <span id="L74" class="LineNr"> 74 </span>    8d/copy-address *(edi+edx+0xc) 2/r32/edx
 <span id="L75" class="LineNr"> 75 </span>    <span class="subxComment"># var outend/ebx: (addr byte) = out + n</span>
@@ -153,8 +153,8 @@ if ('onhashchange' in window) {
 <span id="L97" class="LineNr"> 97 </span>    5d/pop-to-ebp
 <span id="L98" class="LineNr"> 98 </span>    c3/return
 <span id="L99" class="LineNr"> 99 </span>
-<span id="L100" class="LineNr">100 </span><span class="Constant">$write-to-stream:abort</span>:
-<span id="L101" class="LineNr">101 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;write-to-stream: stream full&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L100" class="LineNr">100 </span><span class="Constant">$write-to-stream:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L101" class="LineNr">101 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;write-to-stream: stream full&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L102" class="LineNr">102 </span>    {
 <span id="L103" class="LineNr">103 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L104" class="LineNr">104 </span>    }
@@ -178,7 +178,7 @@ if ('onhashchange' in window) {
 <span id="L122" class="LineNr">122 </span>    8b/-&gt; *(ebp+0x10) 1/r32/ecx
 <span id="L123" class="LineNr">123 </span>    01/add-to %ecx 2/r32/edx
 <span id="L124" class="LineNr">124 </span>    3b/compare 1/r32/ecx *esi
-<span id="L125" class="LineNr">125 </span>    0f 8f/jump-if-&gt; $read-from-stream:abort/disp32
+<span id="L125" class="LineNr">125 </span>    0f 8f/jump-if-&gt; $read-from-stream:<a href='501draw-text.mu.html#L519'>abort</a>/disp32
 <span id="L126" class="LineNr">126 </span>    <span class="subxComment"># var in/edx: (addr byte) = s-&gt;data + s-&gt;read</span>
 <span id="L127" class="LineNr">127 </span>    8d/copy-address *(esi+edx+0xc) 2/r32/edx
 <span id="L128" class="LineNr">128 </span>    <span class="subxComment"># var inend/ebx: (addr byte) = in + n</span>
@@ -206,8 +206,8 @@ if ('onhashchange' in window) {
 <span id="L150" class="LineNr">150 </span>    5d/pop-to-ebp
 <span id="L151" class="LineNr">151 </span>    c3/return
 <span id="L152" class="LineNr">152 </span>
-<span id="L153" class="LineNr">153 </span><span class="Constant">$read-from-stream:abort</span>:
-<span id="L154" class="LineNr">154 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;read-from-stream: stream empty&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L153" class="LineNr">153 </span><span class="Constant">$read-from-stream:<a href='501draw-text.mu.html#L519'>abort</a></span>:
+<span id="L154" class="LineNr">154 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;read-from-stream: stream empty&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L155" class="LineNr">155 </span>    {
 <span id="L156" class="LineNr">156 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L157" class="LineNr">157 </span>    }
diff --git a/html/baremetal/310copy-bytes.subx.html b/html/baremetal/310copy-bytes.subx.html
new file mode 100644
index 00000000..65b80e17
--- /dev/null
+++ b/html/baremetal/310copy-bytes.subx.html
@@ -0,0 +1,219 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/310copy-bytes.subx</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.SpecialChar { color: #d70000; }
+.subxComment { color: #005faf; }
+.subxS1Comment { color: #0000af; }
+.LineNr { }
+.subxTest { color: #5f8700; }
+.subxFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/310copy-bytes.subx'>https://github.com/akkartik/mu/blob/main/baremetal/310copy-bytes.subx</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="subxComment"># Some helpers for copying non-overlapping regions of memory.</span>
+<span id="L2" class="LineNr">  2 </span><span class="subxComment"># Really only intended to be called from code generated by mu.subx.</span>
+<span id="L3" class="LineNr">  3 </span>
+<span id="L4" class="LineNr">  4 </span>== code
+<span id="L5" class="LineNr">  5 </span>
+<span id="L6" class="LineNr">  6 </span><span class="subxFunction">copy-bytes</span>:  <span class="subxComment"># src: (addr byte), dest: (addr byte), size: int</span>
+<span id="L7" class="LineNr">  7 </span>    <span class="subxComment"># pseudocode:</span>
+<span id="L8" class="LineNr">  8 </span>    <span class="subxComment">#   curr-src/esi = src</span>
+<span id="L9" class="LineNr">  9 </span>    <span class="subxComment">#   curr-dest/edi = dest</span>
+<span id="L10" class="LineNr"> 10 </span>    <span class="subxComment">#   i/ecx = 0</span>
+<span id="L11" class="LineNr"> 11 </span>    <span class="subxComment">#   while true</span>
+<span id="L12" class="LineNr"> 12 </span>    <span class="subxComment">#     if (i &gt;= size) break</span>
+<span id="L13" class="LineNr"> 13 </span>    <span class="subxComment">#     *curr-dest = *curr-src</span>
+<span id="L14" class="LineNr"> 14 </span>    <span class="subxComment">#     ++curr-src</span>
+<span id="L15" class="LineNr"> 15 </span>    <span class="subxComment">#     ++curr-dest</span>
+<span id="L16" class="LineNr"> 16 </span>    <span class="subxComment">#     ++i</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="subxComment">#</span>
+<span id="L18" class="LineNr"> 18 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L19" class="LineNr"> 19 </span>    55/push-ebp
+<span id="L20" class="LineNr"> 20 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L21" class="LineNr"> 21 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L22" class="LineNr"> 22 </span>    50/push-eax
+<span id="L23" class="LineNr"> 23 </span>    51/push-ecx
+<span id="L24" class="LineNr"> 24 </span>    52/push-edx
+<span id="L25" class="LineNr"> 25 </span>    56/push-esi
+<span id="L26" class="LineNr"> 26 </span>    57/push-edi
+<span id="L27" class="LineNr"> 27 </span>    <span class="subxComment"># curr-src/esi = src</span>
+<span id="L28" class="LineNr"> 28 </span>    8b/-&gt; *(ebp+8) 6/r32/esi
+<span id="L29" class="LineNr"> 29 </span>    <span class="subxComment"># curr-dest/edi = dest</span>
+<span id="L30" class="LineNr"> 30 </span>    8b/-&gt; *(ebp+0xc) 7/r32/edi
+<span id="L31" class="LineNr"> 31 </span>    <span class="subxComment"># var i/ecx: int = 0</span>
+<span id="L32" class="LineNr"> 32 </span>    b9/copy-to-ecx 0/imm32
+<span id="L33" class="LineNr"> 33 </span>    <span class="subxComment"># edx = size</span>
+<span id="L34" class="LineNr"> 34 </span>    8b/-&gt; *(ebp+0x10) 2/r32/edx
+<span id="L35" class="LineNr"> 35 </span>    {
+<span id="L36" class="LineNr"> 36 </span>      <span class="subxComment"># if (i &gt;= size) break</span>
+<span id="L37" class="LineNr"> 37 </span>      39/compare %ecx 2/r32/edx
+<span id="L38" class="LineNr"> 38 </span>      7d/jump-if-&gt;=  <span class="Constant">break</span>/disp8
+<span id="L39" class="LineNr"> 39 </span>      <span class="subxComment"># *curr-dest = *curr-src</span>
+<span id="L40" class="LineNr"> 40 </span>      8a/byte-&gt; *esi 0/r32/AL
+<span id="L41" class="LineNr"> 41 </span>      88/byte&lt;- *edi 0/r32/AL
+<span id="L42" class="LineNr"> 42 </span>      <span class="subxComment"># update</span>
+<span id="L43" class="LineNr"> 43 </span>      46/increment-esi
+<span id="L44" class="LineNr"> 44 </span>      47/increment-edi
+<span id="L45" class="LineNr"> 45 </span>      41/increment-ecx
+<span id="L46" class="LineNr"> 46 </span>      eb/jump <span class="Constant">loop</span>/disp8
+<span id="L47" class="LineNr"> 47 </span>    }
+<span id="L48" class="LineNr"> 48 </span><span class="Constant">$copy-bytes:end</span>:
+<span id="L49" class="LineNr"> 49 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L50" class="LineNr"> 50 </span>    5f/pop-to-edi
+<span id="L51" class="LineNr"> 51 </span>    5e/pop-to-esi
+<span id="L52" class="LineNr"> 52 </span>    5a/pop-to-edx
+<span id="L53" class="LineNr"> 53 </span>    59/pop-to-ecx
+<span id="L54" class="LineNr"> 54 </span>    58/pop-to-eax
+<span id="L55" class="LineNr"> 55 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L56" class="LineNr"> 56 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L57" class="LineNr"> 57 </span>    5d/pop-to-ebp
+<span id="L58" class="LineNr"> 58 </span>    c3/return
+<span id="L59" class="LineNr"> 59 </span>
+<span id="L60" class="LineNr"> 60 </span><span class="subxFunction">stream-to-array</span>:  <span class="subxComment"># in: (addr stream _), out: (addr handle array _)</span>
+<span id="L61" class="LineNr"> 61 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L62" class="LineNr"> 62 </span>    55/push-ebp
+<span id="L63" class="LineNr"> 63 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L64" class="LineNr"> 64 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L65" class="LineNr"> 65 </span>    50/push-eax
+<span id="L66" class="LineNr"> 66 </span>    51/push-ecx
+<span id="L67" class="LineNr"> 67 </span>    52/push-edx
+<span id="L68" class="LineNr"> 68 </span>    56/push-esi
+<span id="L69" class="LineNr"> 69 </span>    <span class="subxComment"># esi = s</span>
+<span id="L70" class="LineNr"> 70 </span>    8b/-&gt; *(ebp+8) 6/r32/esi
+<span id="L71" class="LineNr"> 71 </span>    <span class="subxComment"># var len/ecx: int = s-&gt;write - s-&gt;read</span>
+<span id="L72" class="LineNr"> 72 </span>    8b/-&gt; *esi 1/r32/ecx
+<span id="L73" class="LineNr"> 73 </span>    2b/subtract *(esi+4) 1/r32/ecx
+<span id="L74" class="LineNr"> 74 </span>    <span class="subxComment"># allocate</span>
+<span id="L75" class="LineNr"> 75 </span>    (<a href='120allocate.subx.html#L535'>allocate-array</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> %ecx *(ebp+0xc))
+<span id="L76" class="LineNr"> 76 </span>    <span class="subxComment"># var in/edx: (addr byte) = s-&gt;data + s-&gt;read</span>
+<span id="L77" class="LineNr"> 77 </span>    8b/-&gt; *(esi+4) 2/r32/edx
+<span id="L78" class="LineNr"> 78 </span>    8d/copy-address *(esi+edx+0xc) 2/r32/edx
+<span id="L79" class="LineNr"> 79 </span>    <span class="subxComment"># var dest/eax: (addr byte) = data for out</span>
+<span id="L80" class="LineNr"> 80 </span>    8b/-&gt; *(ebp+0xc) 0/r32/eax
+<span id="L81" class="LineNr"> 81 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *eax *(eax+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L82" class="LineNr"> 82 </span>    8d/copy-address *(eax+4) 0/r32/eax
+<span id="L83" class="LineNr"> 83 </span>    <span class="subxComment">#</span>
+<span id="L84" class="LineNr"> 84 </span>    (<a href='310copy-bytes.subx.html#L6'>copy-bytes</a> %edx %eax %ecx)
+<span id="L85" class="LineNr"> 85 </span><span class="Constant">$stream-to-array:end</span>:
+<span id="L86" class="LineNr"> 86 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L87" class="LineNr"> 87 </span>    5e/pop-to-esi
+<span id="L88" class="LineNr"> 88 </span>    5a/pop-to-edx
+<span id="L89" class="LineNr"> 89 </span>    59/pop-to-ecx
+<span id="L90" class="LineNr"> 90 </span>    58/pop-to-eax
+<span id="L91" class="LineNr"> 91 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L92" class="LineNr"> 92 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L93" class="LineNr"> 93 </span>    5d/pop-to-ebp
+<span id="L94" class="LineNr"> 94 </span>    c3/return
+<span id="L95" class="LineNr"> 95 </span>
+<span id="L96" class="LineNr"> 96 </span><span class="subxTest">test-stream-to-array</span>:
+<span id="L97" class="LineNr"> 97 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L98" class="LineNr"> 98 </span>    55/push-ebp
+<span id="L99" class="LineNr"> 99 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L100" class="LineNr">100 </span>    <span class="subxComment"># setup</span>
+<span id="L101" class="LineNr">101 </span>    (<a href='106stream.subx.html#L20'>clear-stream</a> <a href='112read-byte.subx.html#L50'>_test-input-stream</a>)
+<span id="L102" class="LineNr">102 </span>    (<a href='108write.subx.html#L11'>write</a> <a href='112read-byte.subx.html#L50'>_test-input-stream</a> <span class="Constant">&quot;abc&quot;</span>)
+<span id="L103" class="LineNr">103 </span>    <span class="subxComment"># skip something</span>
+<span id="L104" class="LineNr">104 </span>    (<a href='112read-byte.subx.html#L13'>read-byte</a> <a href='112read-byte.subx.html#L50'>_test-input-stream</a>)  <span class="subxComment"># =&gt; eax</span>
+<span id="L105" class="LineNr">105 </span>    <span class="subxComment"># var out/ecx: (handle array byte)</span>
+<span id="L106" class="LineNr">106 </span>    68/push 0/imm32
+<span id="L107" class="LineNr">107 </span>    68/push 0/imm32
+<span id="L108" class="LineNr">108 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L109" class="LineNr">109 </span>    <span class="subxComment">#</span>
+<span id="L110" class="LineNr">110 </span>    (<a href='310copy-bytes.subx.html#L60'>stream-to-array</a> <a href='112read-byte.subx.html#L50'>_test-input-stream</a> %ecx)
+<span id="L111" class="LineNr">111 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *ecx *(ecx+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L112" class="LineNr">112 </span>    (<a href='105string-equal.subx.html#L213'>check-strings-equal</a> %eax <span class="Constant">&quot;bc&quot;</span>)
+<span id="L113" class="LineNr">113 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L114" class="LineNr">114 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L115" class="LineNr">115 </span>    5d/pop-to-ebp
+<span id="L116" class="LineNr">116 </span>    c3/return
+<span id="L117" class="LineNr">117 </span>
+<span id="L118" class="LineNr">118 </span><span class="subxComment"># like stream-to-array but ignore surrounding quotes</span>
+<span id="L119" class="LineNr">119 </span><span class="subxComment"># we might do other stuff here later</span>
+<span id="L120" class="LineNr">120 </span><span class="subxFunction">unquote-stream-to-array</span>:  <span class="subxComment"># in: (addr stream _), out: (addr handle array _)</span>
+<span id="L121" class="LineNr">121 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L122" class="LineNr">122 </span>    55/push-ebp
+<span id="L123" class="LineNr">123 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L124" class="LineNr">124 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L125" class="LineNr">125 </span>    50/push-eax
+<span id="L126" class="LineNr">126 </span>    51/push-ecx
+<span id="L127" class="LineNr">127 </span>    52/push-edx
+<span id="L128" class="LineNr">128 </span>    56/push-esi
+<span id="L129" class="LineNr">129 </span>    <span class="subxComment"># esi = s</span>
+<span id="L130" class="LineNr">130 </span>    8b/-&gt; *(ebp+8) 6/r32/esi
+<span id="L131" class="LineNr">131 </span>    <span class="subxComment"># var len/ecx: int = s-&gt;write - s-&gt;read - 2</span>
+<span id="L132" class="LineNr">132 </span>    8b/-&gt; *esi 1/r32/ecx
+<span id="L133" class="LineNr">133 </span>    2b/subtract *(esi+4) 1/r32/ecx
+<span id="L134" class="LineNr">134 </span>    81 7/subop/compare %ecx 2/imm32
+<span id="L135" class="LineNr">135 </span>    7c/jump-if-&lt; $unquote-stream-to-array:end/disp8
+<span id="L136" class="LineNr">136 </span>    81 5/subop/subtract %ecx 2/imm32
+<span id="L137" class="LineNr">137 </span>    <span class="subxComment"># allocate</span>
+<span id="L138" class="LineNr">138 </span>    (<a href='120allocate.subx.html#L535'>allocate-array</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> %ecx *(ebp+0xc))
+<span id="L139" class="LineNr">139 </span>    <span class="subxComment"># var in/edx: (addr byte) = s-&gt;data + s-&gt;read + 1</span>
+<span id="L140" class="LineNr">140 </span>    8b/-&gt; *(esi+4) 2/r32/edx
+<span id="L141" class="LineNr">141 </span>    8d/copy-address *(esi+edx+0xd) 2/r32/edx  <span class="subxComment"># Stream-data + 1</span>
+<span id="L142" class="LineNr">142 </span>    <span class="subxComment"># var dest/eax: (addr byte) = data for out</span>
+<span id="L143" class="LineNr">143 </span>    8b/-&gt; *(ebp+0xc) 0/r32/eax
+<span id="L144" class="LineNr">144 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *eax *(eax+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L145" class="LineNr">145 </span>    8d/copy-address *(eax+4) 0/r32/eax
+<span id="L146" class="LineNr">146 </span>    <span class="subxComment">#</span>
+<span id="L147" class="LineNr">147 </span>    (<a href='310copy-bytes.subx.html#L6'>copy-bytes</a> %edx %eax %ecx)
+<span id="L148" class="LineNr">148 </span><span class="Constant">$unquote-stream-to-array:end</span>:
+<span id="L149" class="LineNr">149 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L150" class="LineNr">150 </span>    5e/pop-to-esi
+<span id="L151" class="LineNr">151 </span>    5a/pop-to-edx
+<span id="L152" class="LineNr">152 </span>    59/pop-to-ecx
+<span id="L153" class="LineNr">153 </span>    58/pop-to-eax
+<span id="L154" class="LineNr">154 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L155" class="LineNr">155 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L156" class="LineNr">156 </span>    5d/pop-to-ebp
+<span id="L157" class="LineNr">157 </span>    c3/return
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/311decimal-int.subx.html b/html/baremetal/311decimal-int.subx.html
index 86304b6b..9c57479e 100644
--- a/html/baremetal/311decimal-int.subx.html
+++ b/html/baremetal/311decimal-int.subx.html
@@ -14,9 +14,12 @@ pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-
 body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
 a { color:inherit; }
 * { font-size:12pt; font-size: 1em; }
+.SpecialChar { color: #d70000; }
 .subxComment { color: #005faf; }
 .subxS1Comment { color: #0000af; }
 .LineNr { }
+.subxH1Comment { color: #005faf; text-decoration: underline; }
+.subxMinorFunction { color: #875f5f; }
 .subxTest { color: #5f8700; }
 .subxFunction { color: #af5f00; text-decoration: underline; }
 .Constant { color: #008787; }
@@ -482,6 +485,212 @@ if ('onhashchange' in window) {
 <span id="L425" class="LineNr">425 </span>    89/&lt;- %esp 5/r32/ebp
 <span id="L426" class="LineNr">426 </span>    5d/pop-to-ebp
 <span id="L427" class="LineNr">427 </span>    c3/return
+<span id="L428" class="LineNr">428 </span>
+<span id="L429" class="LineNr">429 </span><span class="subxMinorFunction">_parse-array-of-decimal-ints</span>:  <span class="subxComment"># ad: (addr allocation-descriptor), s: (addr array byte), out: (addr handle array int)</span>
+<span id="L430" class="LineNr">430 </span>    <span class="subxComment"># pseudocode</span>
+<span id="L431" class="LineNr">431 </span>    <span class="subxComment">#   end = &amp;s-&gt;data[s-&gt;size]</span>
+<span id="L432" class="LineNr">432 </span>    <span class="subxComment">#   curr = s-&gt;data</span>
+<span id="L433" class="LineNr">433 </span>    <span class="subxComment">#   size = 0</span>
+<span id="L434" class="LineNr">434 </span>    <span class="subxComment">#   while true</span>
+<span id="L435" class="LineNr">435 </span>    <span class="subxComment">#     if (curr &gt;= end) break</span>
+<span id="L436" class="LineNr">436 </span>    <span class="subxComment">#     curr = skip-chars-matching-in-slice(curr, end, ' ')</span>
+<span id="L437" class="LineNr">437 </span>    <span class="subxComment">#     if (curr &gt;= end) break</span>
+<span id="L438" class="LineNr">438 </span>    <span class="subxComment">#     curr = skip-chars-not-matching-in-slice(curr, end, ' ')</span>
+<span id="L439" class="LineNr">439 </span>    <span class="subxComment">#     ++size</span>
+<span id="L440" class="LineNr">440 </span>    <span class="subxComment">#   allocate-array(ad, size*4, out)</span>
+<span id="L441" class="LineNr">441 </span>    <span class="subxComment">#   var slice: slice = {s-&gt;data, 0}</span>
+<span id="L442" class="LineNr">442 </span>    <span class="subxComment">#   curr = lookup(out)-&gt;data</span>
+<span id="L443" class="LineNr">443 </span>    <span class="subxComment">#   while true</span>
+<span id="L444" class="LineNr">444 </span>    <span class="subxComment">#     if (slice-&gt;start &gt;= end) break</span>
+<span id="L445" class="LineNr">445 </span>    <span class="subxComment">#     slice-&gt;start = skip-chars-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L446" class="LineNr">446 </span>    <span class="subxComment">#     if (slice-&gt;start &gt;= end) break</span>
+<span id="L447" class="LineNr">447 </span>    <span class="subxComment">#     slice-&gt;end = skip-chars-not-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L448" class="LineNr">448 </span>    <span class="subxComment">#     *curr = parse-hex-int-from-slice(slice)</span>
+<span id="L449" class="LineNr">449 </span>    <span class="subxComment">#     curr += 4</span>
+<span id="L450" class="LineNr">450 </span>    <span class="subxComment">#     slice-&gt;start = slice-&gt;end</span>
+<span id="L451" class="LineNr">451 </span>    <span class="subxComment">#   return result</span>
+<span id="L452" class="LineNr">452 </span>    <span class="subxComment">#</span>
+<span id="L453" class="LineNr">453 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L454" class="LineNr">454 </span>    55/push-ebp
+<span id="L455" class="LineNr">455 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L456" class="LineNr">456 </span>    <span class="subxS1Comment"># . save registers</span>
+<span id="L457" class="LineNr">457 </span>    50/push-eax
+<span id="L458" class="LineNr">458 </span>    51/push-ecx
+<span id="L459" class="LineNr">459 </span>    52/push-edx
+<span id="L460" class="LineNr">460 </span>    53/push-ebx
+<span id="L461" class="LineNr">461 </span>    56/push-esi
+<span id="L462" class="LineNr">462 </span>    57/push-edi
+<span id="L463" class="LineNr">463 </span>    <span class="subxComment"># esi = s</span>
+<span id="L464" class="LineNr">464 </span>    8b/-&gt; *(ebp+0xc) 6/r32/esi
+<span id="L465" class="LineNr">465 </span>    <span class="subxComment"># var curr/ecx: (addr byte) = s-&gt;data</span>
+<span id="L466" class="LineNr">466 </span>    8d/copy-address *(esi+4) 1/r32/ecx
+<span id="L467" class="LineNr">467 </span>    <span class="subxComment"># var end/edx: (addr byte) = &amp;s-&gt;data[s-&gt;size]</span>
+<span id="L468" class="LineNr">468 </span>    <span class="subxS1Comment"># . edx = s-&gt;size</span>
+<span id="L469" class="LineNr">469 </span>    8b/-&gt; *esi 2/r32/edx
+<span id="L470" class="LineNr">470 </span>    <span class="subxS1Comment"># . edx += curr</span>
+<span id="L471" class="LineNr">471 </span>    01/add-to %edx 1/r32/ecx
+<span id="L472" class="LineNr">472 </span>    <span class="subxComment"># var size/ebx: int = 0</span>
+<span id="L473" class="LineNr">473 </span>    31/xor-with %ebx 3/r32/ebx
+<span id="L474" class="LineNr">474 </span><span class="Constant">$_parse-array-of-decimal-ints:loop1</span>:
+<span id="L475" class="LineNr">475 </span>    <span class="subxComment"># if (curr &gt;= end) break</span>
+<span id="L476" class="LineNr">476 </span>    39/compare %ecx 2/r32/edx
+<span id="L477" class="LineNr">477 </span>    73/jump-if-addr&gt;= $_parse-array-of-decimal-ints:break1/disp8
+<span id="L478" class="LineNr">478 </span>    <span class="subxComment"># curr = skip-chars-matching-in-slice(curr, end, ' ')</span>
+<span id="L479" class="LineNr">479 </span>    (<a href='124next-token.subx.html#L804'>skip-chars-matching-in-slice</a> %ecx %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L480" class="LineNr">480 </span>    89/&lt;- %ecx 0/r32/eax
+<span id="L481" class="LineNr">481 </span>    <span class="subxComment"># if (curr &gt;= end) break</span>
+<span id="L482" class="LineNr">482 </span>    39/compare %ecx 2/r32/edx
+<span id="L483" class="LineNr">483 </span>    73/jump-if-addr&gt;= $_parse-array-of-decimal-ints:break1/disp8
+<span id="L484" class="LineNr">484 </span>    <span class="subxComment"># curr = skip-chars-not-matching-in-slice(curr, end, ' ')</span>
+<span id="L485" class="LineNr">485 </span>    (<a href='124next-token.subx.html#L973'>skip-chars-not-matching-in-slice</a> %ecx %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L486" class="LineNr">486 </span>    89/&lt;- %ecx 0/r32/eax
+<span id="L487" class="LineNr">487 </span>    <span class="subxComment"># size += 4</span>
+<span id="L488" class="LineNr">488 </span>    81 0/subop/add %ebx 4/imm32
+<span id="L489" class="LineNr">489 </span>    eb/jump $_parse-array-of-decimal-ints:loop1/disp8
+<span id="L490" class="LineNr">490 </span><span class="Constant">$_parse-array-of-decimal-ints:break1</span>:
+<span id="L491" class="LineNr">491 </span>    (<a href='120allocate.subx.html#L535'>allocate-array</a> *(ebp+8) %ebx *(ebp+0x10))
+<span id="L492" class="LineNr">492 </span><span class="Constant">$_parse-array-of-decimal-ints:pass2</span>:
+<span id="L493" class="LineNr">493 </span>    <span class="subxComment"># var slice/edi: slice = {s-&gt;data, 0}</span>
+<span id="L494" class="LineNr">494 </span>    68/push 0/imm32/end
+<span id="L495" class="LineNr">495 </span>    8d/copy-address *(esi+4) 7/r32/edi
+<span id="L496" class="LineNr">496 </span>    57/push-edi
+<span id="L497" class="LineNr">497 </span>    89/&lt;- %edi 4/r32/esp
+<span id="L498" class="LineNr">498 </span>    <span class="subxComment"># curr = lookup(out)-&gt;data</span>
+<span id="L499" class="LineNr">499 </span>    8b/-&gt; *(ebp+0x10) 0/r32/eax
+<span id="L500" class="LineNr">500 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *eax *(eax+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L501" class="LineNr">501 </span>    8d/copy-address *(eax+4) 1/r32/ecx
+<span id="L502" class="LineNr">502 </span><span class="Constant">$_parse-array-of-decimal-ints:loop2</span>:
+<span id="L503" class="LineNr">503 </span>    <span class="subxComment"># if (slice-&gt;start &gt;= end) break</span>
+<span id="L504" class="LineNr">504 </span>    39/compare *edi 2/r32/edx
+<span id="L505" class="LineNr">505 </span>    73/jump-if-addr&gt;= $_parse-array-of-decimal-ints:end/disp8
+<span id="L506" class="LineNr">506 </span>    <span class="subxComment"># slice-&gt;start = skip-chars-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L507" class="LineNr">507 </span>    (<a href='124next-token.subx.html#L804'>skip-chars-matching-in-slice</a> *edi %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L508" class="LineNr">508 </span>    89/&lt;- *edi 0/r32/eax
+<span id="L509" class="LineNr">509 </span>    <span class="subxComment"># if (slice-&gt;start &gt;= end) break</span>
+<span id="L510" class="LineNr">510 </span>    39/compare *edi 2/r32/edx
+<span id="L511" class="LineNr">511 </span>    73/jump-if-addr&gt;= $_parse-array-of-decimal-ints:end/disp8
+<span id="L512" class="LineNr">512 </span>    <span class="subxComment"># slice-&gt;end = skip-chars-not-matching-in-slice(slice-&gt;start, end, ' ')</span>
+<span id="L513" class="LineNr">513 </span>    (<a href='124next-token.subx.html#L973'>skip-chars-not-matching-in-slice</a> *edi %edx 0x20)  <span class="subxComment"># =&gt; eax</span>
+<span id="L514" class="LineNr">514 </span>    89/&lt;- *(edi+4) 0/r32/eax
+<span id="L515" class="LineNr">515 </span>    <span class="subxComment"># *curr = parse-hex-int-from-slice(slice)</span>
+<span id="L516" class="LineNr">516 </span>    (<a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> %edi)
+<span id="L517" class="LineNr">517 </span>    89/&lt;- *ecx 0/r32/eax
+<span id="L518" class="LineNr">518 </span>    <span class="subxComment"># curr += 4</span>
+<span id="L519" class="LineNr">519 </span>    81 0/subop/add %ecx 4/imm32
+<span id="L520" class="LineNr">520 </span>    <span class="subxComment"># slice-&gt;start = slice-&gt;end</span>
+<span id="L521" class="LineNr">521 </span>    8b/-&gt; *(edi+4) 0/r32/eax
+<span id="L522" class="LineNr">522 </span>    89/&lt;- *edi 0/r32/eax
+<span id="L523" class="LineNr">523 </span>    eb/jump $_parse-array-of-decimal-ints:loop2/disp8
+<span id="L524" class="LineNr">524 </span><span class="Constant">$_parse-array-of-decimal-ints:end</span>:
+<span id="L525" class="LineNr">525 </span>    <span class="subxS1Comment"># . reclaim locals</span>
+<span id="L526" class="LineNr">526 </span>    81 0/subop/add %esp 8/imm32
+<span id="L527" class="LineNr">527 </span>    <span class="subxS1Comment"># . restore registers</span>
+<span id="L528" class="LineNr">528 </span>    5f/pop-to-edi
+<span id="L529" class="LineNr">529 </span>    5e/pop-to-esi
+<span id="L530" class="LineNr">530 </span>    5b/pop-to-ebx
+<span id="L531" class="LineNr">531 </span>    5a/pop-to-edx
+<span id="L532" class="LineNr">532 </span>    59/pop-to-ecx
+<span id="L533" class="LineNr">533 </span>    58/pop-to-eax
+<span id="L534" class="LineNr">534 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L535" class="LineNr">535 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L536" class="LineNr">536 </span>    5d/pop-to-ebp
+<span id="L537" class="LineNr">537 </span>    c3/return
+<span id="L538" class="LineNr">538 </span>
+<span id="L539" class="LineNr">539 </span><span class="subxTest">test-parse-array-of-decimal-ints</span>:
+<span id="L540" class="LineNr">540 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L541" class="LineNr">541 </span>    55/push-ebp
+<span id="L542" class="LineNr">542 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L543" class="LineNr">543 </span>    <span class="subxComment"># var h/esi: (handle array int)</span>
+<span id="L544" class="LineNr">544 </span>    68/push 0/imm32
+<span id="L545" class="LineNr">545 </span>    68/push 0/imm32
+<span id="L546" class="LineNr">546 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L547" class="LineNr">547 </span>    <span class="subxComment"># var ecx: (array int) = [1, 2, 3]</span>
+<span id="L548" class="LineNr">548 </span>    68/push 3/imm32
+<span id="L549" class="LineNr">549 </span>    68/push 2/imm32
+<span id="L550" class="LineNr">550 </span>    68/push 1/imm32
+<span id="L551" class="LineNr">551 </span>    68/push 0xc/imm32/size
+<span id="L552" class="LineNr">552 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L553" class="LineNr">553 </span>    <span class="subxComment">#</span>
+<span id="L554" class="LineNr">554 </span>    (<a href='311decimal-int.subx.html#L429'>_parse-array-of-decimal-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="Constant">&quot;1 2 3&quot;</span> %esi)
+<span id="L555" class="LineNr">555 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L556" class="LineNr">556 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %eax)  <span class="subxComment"># =&gt; eax</span>
+<span id="L557" class="LineNr">557 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">&quot;F - test-parse-array-of-decimal-ints&quot;</span>)
+<span id="L558" class="LineNr">558 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L559" class="LineNr">559 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L560" class="LineNr">560 </span>    5d/pop-to-ebp
+<span id="L561" class="LineNr">561 </span>    c3/return
+<span id="L562" class="LineNr">562 </span>
+<span id="L563" class="LineNr">563 </span><span class="subxTest">test-parse-array-of-decimal-ints-empty</span>:
+<span id="L564" class="LineNr">564 </span>    <span class="subxH1Comment"># - empty string = empty array</span>
+<span id="L565" class="LineNr">565 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L566" class="LineNr">566 </span>    55/push-ebp
+<span id="L567" class="LineNr">567 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L568" class="LineNr">568 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L569" class="LineNr">569 </span>    68/push 0/imm32
+<span id="L570" class="LineNr">570 </span>    68/push 0/imm32
+<span id="L571" class="LineNr">571 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L572" class="LineNr">572 </span>    <span class="subxComment">#</span>
+<span id="L573" class="LineNr">573 </span>    (<a href='311decimal-int.subx.html#L429'>_parse-array-of-decimal-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="Constant">&quot;&quot;</span> %esi)
+<span id="L574" class="LineNr">574 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L575" class="LineNr">575 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> *eax 0 <span class="Constant">&quot;F - test-parse-array-of-decimal-ints-empty&quot;</span>)
+<span id="L576" class="LineNr">576 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L577" class="LineNr">577 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L578" class="LineNr">578 </span>    5d/pop-to-ebp
+<span id="L579" class="LineNr">579 </span>    c3/return
+<span id="L580" class="LineNr">580 </span>
+<span id="L581" class="LineNr">581 </span><span class="subxTest">test-parse-array-of-decimal-ints-just-whitespace</span>:
+<span id="L582" class="LineNr">582 </span>    <span class="subxH1Comment"># - just whitespace = empty array</span>
+<span id="L583" class="LineNr">583 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L584" class="LineNr">584 </span>    55/push-ebp
+<span id="L585" class="LineNr">585 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L586" class="LineNr">586 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L587" class="LineNr">587 </span>    68/push 0/imm32
+<span id="L588" class="LineNr">588 </span>    68/push 0/imm32
+<span id="L589" class="LineNr">589 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L590" class="LineNr">590 </span>    <span class="subxComment">#</span>
+<span id="L591" class="LineNr">591 </span>    (<a href='311decimal-int.subx.html#L429'>_parse-array-of-decimal-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="SpecialChar"><a href='301array-equal.subx.html#L428'>Space</a></span> %esi)
+<span id="L592" class="LineNr">592 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L593" class="LineNr">593 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> *eax 0 <span class="Constant">&quot;F - test-parse-array-of-decimal-ints-just-whitespace&quot;</span>)
+<span id="L594" class="LineNr">594 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L595" class="LineNr">595 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L596" class="LineNr">596 </span>    5d/pop-to-ebp
+<span id="L597" class="LineNr">597 </span>    c3/return
+<span id="L598" class="LineNr">598 </span>
+<span id="L599" class="LineNr">599 </span><span class="subxTest">test-parse-array-of-decimal-ints-extra-whitespace</span>:
+<span id="L600" class="LineNr">600 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L601" class="LineNr">601 </span>    55/push-ebp
+<span id="L602" class="LineNr">602 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L603" class="LineNr">603 </span>    <span class="subxComment"># var h/esi: handle</span>
+<span id="L604" class="LineNr">604 </span>    68/push 0/imm32
+<span id="L605" class="LineNr">605 </span>    68/push 0/imm32
+<span id="L606" class="LineNr">606 </span>    89/&lt;- %esi 4/r32/esp
+<span id="L607" class="LineNr">607 </span>    <span class="subxComment"># var ecx: (array int) = [1, 2, 3]</span>
+<span id="L608" class="LineNr">608 </span>    68/push 3/imm32
+<span id="L609" class="LineNr">609 </span>    68/push 2/imm32
+<span id="L610" class="LineNr">610 </span>    68/push 1/imm32
+<span id="L611" class="LineNr">611 </span>    68/push 0xc/imm32/size
+<span id="L612" class="LineNr">612 </span>    89/&lt;- %ecx 4/r32/esp
+<span id="L613" class="LineNr">613 </span>    <span class="subxComment">#</span>
+<span id="L614" class="LineNr">614 </span>    (<a href='311decimal-int.subx.html#L429'>_parse-array-of-decimal-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> <span class="Constant">&quot; 1 2  3  &quot;</span> %esi)
+<span id="L615" class="LineNr">615 </span>    (<a href='120allocate.subx.html#L226'>lookup</a> *esi *(esi+4))  <span class="subxComment"># =&gt; eax</span>
+<span id="L616" class="LineNr">616 </span>    (<a href='301array-equal.subx.html#L5'>array-equal?</a> %ecx %eax)  <span class="subxComment"># =&gt; eax</span>
+<span id="L617" class="LineNr">617 </span>    (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">&quot;F - test-parse-array-of-decimal-ints-extra-whitespace&quot;</span>)
+<span id="L618" class="LineNr">618 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L619" class="LineNr">619 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L620" class="LineNr">620 </span>    5d/pop-to-ebp
+<span id="L621" class="LineNr">621 </span>    c3/return
+<span id="L622" class="LineNr">622 </span>
+<span id="L623" class="LineNr">623 </span><span class="subxFunction">parse-array-of-decimal-ints</span>:  <span class="subxComment"># s: (addr array byte), out: (addr handle array int)</span>
+<span id="L624" class="LineNr">624 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L625" class="LineNr">625 </span>    55/push-ebp
+<span id="L626" class="LineNr">626 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L627" class="LineNr">627 </span>    <span class="subxComment">#</span>
+<span id="L628" class="LineNr">628 </span>    (<a href='311decimal-int.subx.html#L429'>_parse-array-of-decimal-ints</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> *(ebp+8) *(ebp+0xc))
+<span id="L629" class="LineNr">629 </span><span class="Constant">$parse-array-of-decimal-ints:end</span>:
+<span id="L630" class="LineNr">630 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L631" class="LineNr">631 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L632" class="LineNr">632 </span>    5d/pop-to-ebp
+<span id="L633" class="LineNr">633 </span>    c3/return
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/312copy.subx.html b/html/baremetal/312copy.subx.html
new file mode 100644
index 00000000..5b2754dc
--- /dev/null
+++ b/html/baremetal/312copy.subx.html
@@ -0,0 +1,74 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/312copy.subx</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.SpecialChar { color: #d70000; }
+.subxComment { color: #005faf; }
+.subxS1Comment { color: #0000af; }
+.LineNr { }
+.subxFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/312copy.subx'>https://github.com/akkartik/mu/blob/main/baremetal/312copy.subx</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span>== code
+<span id="L2" class="LineNr"> 2 </span>
+<span id="L3" class="LineNr"> 3 </span><span class="subxFunction">copy-array-object</span>:  <span class="subxComment"># src: (addr array T), dest-ah: (addr handle array T)</span>
+<span id="L4" class="LineNr"> 4 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L5" class="LineNr"> 5 </span>    55/push-ebp
+<span id="L6" class="LineNr"> 6 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L7" class="LineNr"> 7 </span>    <span class="subxComment">#</span>
+<span id="L8" class="LineNr"> 8 </span>    (<a href='120allocate.subx.html#L669'>copy-array</a> <span class="SpecialChar"><a href='120allocate.subx.html#L27'>Heap</a></span> *(ebp+8) *(ebp+0xc))
+<span id="L9" class="LineNr"> 9 </span><span class="Constant">$copy-array-object:end</span>:
+<span id="L10" class="LineNr">10 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L11" class="LineNr">11 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L12" class="LineNr">12 </span>    5d/pop-to-ebp
+<span id="L13" class="LineNr">13 </span>    c3/return
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/313index-bounds-check.subx.html b/html/baremetal/313index-bounds-check.subx.html
index 48ea8b01..8f2509c7 100644
--- a/html/baremetal/313index-bounds-check.subx.html
+++ b/html/baremetal/313index-bounds-check.subx.html
@@ -82,13 +82,13 @@ if ('onhashchange' in window) {
 <span id="L26" class="LineNr">26 </span>    39/compare %eax 1/r32/ecx
 <span id="L27" class="LineNr">27 </span>    0f 82/jump-if-unsigned&lt; $__check-mu-array-bounds:end/disp32  <span class="subxComment"># negative index should always abort</span>
 <span id="L28" class="LineNr">28 </span>    <span class="subxComment"># abort if necessary</span>
-<span id="L29" class="LineNr">29 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;fn &quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L30" class="LineNr">30 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x14) 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L31" class="LineNr">31 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;: offset &quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L32" class="LineNr">32 </span>    (<a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 %eax 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L33" class="LineNr">33 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot; is too large for array '&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L34" class="LineNr">34 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x18) 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L35" class="LineNr">35 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;'&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L29" class="LineNr">29 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;fn &quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L30" class="LineNr">30 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x14) 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L31" class="LineNr">31 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;: offset &quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L32" class="LineNr">32 </span>    (<a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 %eax 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L33" class="LineNr">33 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot; is too large for array '&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L34" class="LineNr">34 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x18) 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L35" class="LineNr">35 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;'&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L36" class="LineNr">36 </span>    {
 <span id="L37" class="LineNr">37 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L38" class="LineNr">38 </span>    }
@@ -104,12 +104,12 @@ if ('onhashchange' in window) {
 <span id="L48" class="LineNr">48 </span>    c3/return
 <span id="L49" class="LineNr">49 </span>
 <span id="L50" class="LineNr">50 </span><span class="subxMinorFunction">__check-mu-array-bounds:overflow</span>:
-<span id="L51" class="LineNr">51 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;fn &quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L52" class="LineNr">52 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x14) 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L53" class="LineNr">53 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;: offset to array '&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L54" class="LineNr">54 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;offset to array overflowed 32 bits&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L55" class="LineNr">55 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x18) 3)  <span class="subxComment"># 3=cyan</span>
-<span id="L56" class="LineNr">56 </span>    (<a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;' overflowed 32 bits&quot;</span> 3)  <span class="subxComment"># 3=cyan</span>
+<span id="L51" class="LineNr">51 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;fn &quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L52" class="LineNr">52 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x14) 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L53" class="LineNr">53 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;: offset to array '&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L54" class="LineNr">54 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;offset to array overflowed 32 bits&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L55" class="LineNr">55 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+0x18) 3 0)  <span class="subxComment"># 3=cyan</span>
+<span id="L56" class="LineNr">56 </span>    (<a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 <span class="Constant">&quot;' overflowed 32 bits&quot;</span> 3 0)  <span class="subxComment"># 3=cyan</span>
 <span id="L57" class="LineNr">57 </span>    {
 <span id="L58" class="LineNr">58 </span>      eb/jump <span class="Constant">loop</span>/disp8
 <span id="L59" class="LineNr">59 </span>    }
diff --git a/html/baremetal/314divide.subx.html b/html/baremetal/314divide.subx.html
new file mode 100644
index 00000000..9345a7e5
--- /dev/null
+++ b/html/baremetal/314divide.subx.html
@@ -0,0 +1,77 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/314divide.subx</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.subxComment { color: #005faf; }
+.subxS1Comment { color: #0000af; }
+.LineNr { }
+.subxFunction { color: #af5f00; text-decoration: underline; }
+.Constant { color: #008787; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/314divide.subx'>https://github.com/akkartik/mu/blob/main/baremetal/314divide.subx</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span>== code
+<span id="L2" class="LineNr"> 2 </span>
+<span id="L3" class="LineNr"> 3 </span><span class="subxFunction">integer-divide</span>:  <span class="subxComment"># a: int, b: int -&gt; quotient/eax: int, remainder/edx: int</span>
+<span id="L4" class="LineNr"> 4 </span>    <span class="subxS1Comment"># . prologue</span>
+<span id="L5" class="LineNr"> 5 </span>    55/push-ebp
+<span id="L6" class="LineNr"> 6 </span>    89/&lt;- %ebp 4/r32/esp
+<span id="L7" class="LineNr"> 7 </span>    <span class="subxComment"># eax = a</span>
+<span id="L8" class="LineNr"> 8 </span>    8b/-&gt; *(ebp+8) 0/r32/eax
+<span id="L9" class="LineNr"> 9 </span>    <span class="subxComment"># edx = all 0s or all 1s</span>
+<span id="L10" class="LineNr">10 </span>    99/sign-extend-eax-into-edx
+<span id="L11" class="LineNr">11 </span>    <span class="subxComment"># quotient, remainder = divide eax by b</span>
+<span id="L12" class="LineNr">12 </span>    f7 7/subop/divide-eax-edx-by *(ebp+0xc)
+<span id="L13" class="LineNr">13 </span><span class="Constant">$integer-divide:end</span>:
+<span id="L14" class="LineNr">14 </span>    <span class="subxS1Comment"># . epilogue</span>
+<span id="L15" class="LineNr">15 </span>    89/&lt;- %esp 5/r32/ebp
+<span id="L16" class="LineNr">16 </span>    5d/pop-to-ebp
+<span id="L17" class="LineNr">17 </span>    c3/return
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/400.mu.html b/html/baremetal/400.mu.html
index 7d2d49c5..c5302dfc 100644
--- a/html/baremetal/400.mu.html
+++ b/html/baremetal/400.mu.html
@@ -55,10 +55,10 @@ if ('onhashchange' in window) {
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr"> 1 </span><span class="muComment"># screen</span>
 <span id="L2" class="LineNr"> 2 </span><span class="PreProc">sig</span> <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x: int, y: int, color: int
-<span id="L3" class="LineNr"> 3 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L15'>draw-grapheme-on-real-screen</a> g: grapheme, x: int, y: int, color: int, background-color: int
-<span id="L4" class="LineNr"> 4 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L94'>cursor-position-on-real-screen</a><span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int
-<span id="L5" class="LineNr"> 5 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L107'>set-cursor-position-on-real-screen</a> x: int, y: int
-<span id="L6" class="LineNr"> 6 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L131'>show-cursor-on-real-screen</a> g: grapheme
+<span id="L3" class="LineNr"> 3 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L17'>draw-grapheme-on-real-screen</a> g: grapheme, x: int, y: int, color: int, background-color: int
+<span id="L4" class="LineNr"> 4 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L96'>cursor-position-on-real-screen</a><span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int
+<span id="L5" class="LineNr"> 5 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L109'>set-cursor-position-on-real-screen</a> x: int, y: int
+<span id="L6" class="LineNr"> 6 </span><span class="PreProc">sig</span> <a href='103grapheme.subx.html#L134'>show-cursor-on-real-screen</a> g: grapheme
 <span id="L7" class="LineNr"> 7 </span>
 <span id="L8" class="LineNr"> 8 </span><span class="muComment"># keyboard</span>
 <span id="L9" class="LineNr"> 9 </span><span class="PreProc">sig</span> <a href='102keyboard.subx.html#L9'>read-key</a> kbd: (addr keyboard)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: byte
@@ -67,51 +67,71 @@ if ('onhashchange' in window) {
 <span id="L12" class="LineNr">12 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L5'>count-test-failure</a>
 <span id="L13" class="LineNr">13 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L17'>num-test-failures</a><span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
 <span id="L14" class="LineNr">14 </span>
-<span id="L15" class="LineNr">15 </span><span class="muComment"># streams</span>
-<span id="L16" class="LineNr">16 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L20'>clear-stream</a> f: (addr stream _)
-<span id="L17" class="LineNr">17 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L59'>rewind-stream</a> f: (addr stream _)
-<span id="L18" class="LineNr">18 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L11'>write</a> f: (addr stream byte), s: (addr array byte)
-<span id="L19" class="LineNr">19 </span><span class="PreProc">sig</span> <a href='112read-byte.subx.html#L13'>read-byte</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: byte
-<span id="L20" class="LineNr">20 </span><span class="PreProc">sig</span> <a href='115write-byte.subx.html#L12'>append-byte</a> f: (addr stream byte), n: int
-<span id="L21" class="LineNr">21 </span><span class="muComment">#sig to-hex-char in/eax: int -&gt; out/eax: int</span>
-<span id="L22" class="LineNr">22 </span><span class="PreProc">sig</span> <a href='117write-int-hex.subx.html#L21'>append-byte-hex</a> f: (addr stream byte), n: int
-<span id="L23" class="LineNr">23 </span><span class="PreProc">sig</span> <a href='117write-int-hex.subx.html#L92'>write-int32-hex</a> f: (addr stream byte), n: int
-<span id="L24" class="LineNr">24 </span><span class="PreProc">sig</span> <a href='117write-int-hex.subx.html#L123'>write-int32-hex-bits</a> f: (addr stream byte), n: int, bits: int
-<span id="L25" class="LineNr">25 </span><span class="PreProc">sig</span> is-hex-int? in: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L26" class="LineNr">26 </span><span class="PreProc">sig</span> parse-hex-int in: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L27" class="LineNr">27 </span><span class="PreProc">sig</span> parse-hex-int-from-slice in: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L28" class="LineNr">28 </span><span class="muComment">#sig parse-hex-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
-<span id="L29" class="LineNr">29 </span><span class="PreProc">sig</span> is-hex-digit? c: byte<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L30" class="LineNr">30 </span><span class="muComment">#sig from-hex-char in/eax: byte -&gt; out/eax: nibble</span>
-<span id="L31" class="LineNr">31 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L23'>parse-decimal-int</a> in: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L32" class="LineNr">32 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> in: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L33" class="LineNr">33 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L48'>parse-decimal-int-from-stream</a> in: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L34" class="LineNr">34 </span><span class="muComment">#sig parse-decimal-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
-<span id="L35" class="LineNr">35 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L312'>decimal-size</a> n: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L36" class="LineNr">36 </span><span class="muComment">#sig allocate ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
-<span id="L37" class="LineNr">37 </span><span class="muComment">#sig allocate-raw ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
-<span id="L38" class="LineNr">38 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L226'>lookup</a> h: (handle _T)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: (addr _T)
-<span id="L39" class="LineNr">39 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L424'>handle-equal?</a> a: (handle _T), b: (handle _T)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L40" class="LineNr">40 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L455'>copy-handle</a> src: (handle _T), dest: (addr handle _T)
-<span id="L41" class="LineNr">41 </span><span class="muComment">#sig allocate-region ad: (addr allocation-descriptor), n: int, out: (addr handle allocation-descriptor)</span>
-<span id="L42" class="LineNr">42 </span><span class="muComment">#sig allocate-array ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
-<span id="L43" class="LineNr">43 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L669'>copy-array</a> ad: (addr allocation-descriptor), src: (addr array _T), out: (addr handle array _T)
-<span id="L44" class="LineNr">44 </span><span class="muComment">#sig zero-out start: (addr byte), size: int</span>
-<span id="L45" class="LineNr">45 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L9'>slice-empty?</a> s: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L46" class="LineNr">46 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L120'>slice-equal?</a> s: (addr slice), p: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L47" class="LineNr">47 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L487'>slice-starts-with?</a> s: (addr slice), head: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L48" class="LineNr">48 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L793'>write-slice</a> out: (addr stream byte), s: (addr slice)
-<span id="L49" class="LineNr">49 </span><span class="muComment"># bad name alert</span>
-<span id="L50" class="LineNr">50 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L901'>slice-to-string</a> ad: (addr allocation-descriptor), in: (addr slice), out: (addr handle array byte)
-<span id="L51" class="LineNr">51 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> out: (addr stream byte), n: int
-<span id="L52" class="LineNr">52 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L299'>is-decimal-digit?</a> c: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
-<span id="L53" class="LineNr">53 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L398'>to-decimal-digit</a> in: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
-<span id="L54" class="LineNr">54 </span><span class="muComment"># bad name alert</span>
-<span id="L55" class="LineNr">55 </span><span class="muComment"># next-word really tokenizes</span>
-<span id="L56" class="LineNr">56 </span><span class="muComment"># next-raw-word really reads whitespace-separated words</span>
-<span id="L57" class="LineNr">57 </span><span class="PreProc">sig</span> <a href='127next-word.subx.html#L11'>next-word</a> line: (addr stream byte), out: (addr slice)  <span class="muComment"># skips '#' comments</span>
-<span id="L58" class="LineNr">58 </span><span class="PreProc">sig</span> <a href='127next-word.subx.html#L306'>next-raw-word</a> line: (addr stream byte), out: (addr slice)  <span class="muComment"># does not skip '#' comments</span>
-<span id="L59" class="LineNr">59 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L6'>stream-empty?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L15" class="LineNr">15 </span><span class="PreProc">sig</span> <a href='105string-equal.subx.html#L213'>check-strings-equal</a> s: (addr array byte), expected: (addr array byte), msg: (addr array byte)
+<span id="L16" class="LineNr">16 </span>
+<span id="L17" class="LineNr">17 </span><span class="muComment"># streams</span>
+<span id="L18" class="LineNr">18 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L20'>clear-stream</a> f: (addr stream _)
+<span id="L19" class="LineNr">19 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L59'>rewind-stream</a> f: (addr stream _)
+<span id="L20" class="LineNr">20 </span><span class="PreProc">sig</span> <a href='109stream-equal.subx.html#L9'>stream-data-equal?</a> f: (addr stream byte), s: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L21" class="LineNr">21 </span><span class="PreProc">sig</span> <a href='109stream-equal.subx.html#L194'>check-stream-equal</a> f: (addr stream byte), s: (addr array byte), msg: (addr array byte)
+<span id="L22" class="LineNr">22 </span><span class="PreProc">sig</span> <a href='109stream-equal.subx.html#L230'>next-stream-line-equal?</a> f: (addr stream byte), s: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L23" class="LineNr">23 </span><span class="PreProc">sig</span> <a href='109stream-equal.subx.html#L565'>check-next-stream-line-equal</a> f: (addr stream byte), s: (addr array byte), msg: (addr array byte)
+<span id="L24" class="LineNr">24 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L11'>write</a> f: (addr stream byte), s: (addr array byte)
+<span id="L25" class="LineNr">25 </span><span class="PreProc">sig</span> <a href='112read-byte.subx.html#L13'>read-byte</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: byte
+<span id="L26" class="LineNr">26 </span><span class="PreProc">sig</span> <a href='115write-byte.subx.html#L12'>append-byte</a> f: (addr stream byte), n: int
+<span id="L27" class="LineNr">27 </span><span class="muComment">#sig to-hex-char in/eax: int -&gt; out/eax: int</span>
+<span id="L28" class="LineNr">28 </span><span class="PreProc">sig</span> <a href='117write-int-hex.subx.html#L21'>append-byte-hex</a> f: (addr stream byte), n: int
+<span id="L29" class="LineNr">29 </span><span class="PreProc">sig</span> <a href='117write-int-hex.subx.html#L92'>write-int32-hex</a> f: (addr stream byte), n: int
+<span id="L30" class="LineNr">30 </span><span class="PreProc">sig</span> <a href='117write-int-hex.subx.html#L123'>write-int32-hex-bits</a> f: (addr stream byte), n: int, bits: int
+<span id="L31" class="LineNr">31 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L9'>is-hex-int?</a> in: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L32" class="LineNr">32 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L354'>parse-hex-int</a> in: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L33" class="LineNr">33 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L387'>parse-hex-int-from-slice</a> in: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L34" class="LineNr">34 </span><span class="muComment">#sig parse-hex-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
+<span id="L35" class="LineNr">35 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L701'>is-hex-digit?</a> c: byte<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L36" class="LineNr">36 </span><span class="muComment">#sig from-hex-char in/eax: byte -&gt; out/eax: nibble</span>
+<span id="L37" class="LineNr">37 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L23'>parse-decimal-int</a> in: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L38" class="LineNr">38 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> in: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L39" class="LineNr">39 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L48'>parse-decimal-int-from-stream</a> in: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L40" class="LineNr">40 </span><span class="muComment">#sig parse-decimal-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
+<span id="L41" class="LineNr">41 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L312'>decimal-size</a> n: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L42" class="LineNr">42 </span><span class="muComment">#sig allocate ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
+<span id="L43" class="LineNr">43 </span><span class="muComment">#sig allocate-raw ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
+<span id="L44" class="LineNr">44 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L226'>lookup</a> h: (handle _T)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: (addr _T)
+<span id="L45" class="LineNr">45 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L424'>handle-equal?</a> a: (handle _T), b: (handle _T)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L46" class="LineNr">46 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L455'>copy-handle</a> src: (handle _T), dest: (addr handle _T)
+<span id="L47" class="LineNr">47 </span><span class="muComment">#sig allocate-region ad: (addr allocation-descriptor), n: int, out: (addr handle allocation-descriptor)</span>
+<span id="L48" class="LineNr">48 </span><span class="muComment">#sig allocate-array ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
+<span id="L49" class="LineNr">49 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L669'>copy-array</a> ad: (addr allocation-descriptor), src: (addr array _T), out: (addr handle array _T)
+<span id="L50" class="LineNr">50 </span><span class="muComment">#sig zero-out start: (addr byte), size: int</span>
+<span id="L51" class="LineNr">51 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L9'>slice-empty?</a> s: (addr slice)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L52" class="LineNr">52 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L120'>slice-equal?</a> s: (addr slice), p: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L53" class="LineNr">53 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L487'>slice-starts-with?</a> s: (addr slice), head: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L54" class="LineNr">54 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L793'>write-slice</a> out: (addr stream byte), s: (addr slice)
+<span id="L55" class="LineNr">55 </span><span class="muComment"># bad name alert</span>
+<span id="L56" class="LineNr">56 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L901'>slice-to-string</a> ad: (addr allocation-descriptor), in: (addr slice), out: (addr handle array byte)
+<span id="L57" class="LineNr">57 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> out: (addr stream byte), n: int
+<span id="L58" class="LineNr">58 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L299'>is-decimal-digit?</a> c: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L59" class="LineNr">59 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L398'>to-decimal-digit</a> in: grapheme<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int
+<span id="L60" class="LineNr">60 </span><span class="muComment"># bad name alert</span>
+<span id="L61" class="LineNr">61 </span><span class="muComment"># next-word really tokenizes</span>
+<span id="L62" class="LineNr">62 </span><span class="muComment"># next-raw-word really reads whitespace-separated words</span>
+<span id="L63" class="LineNr">63 </span><span class="PreProc">sig</span> <a href='127next-word.subx.html#L11'>next-word</a> line: (addr stream byte), out: (addr slice)  <span class="muComment"># skips '#' comments</span>
+<span id="L64" class="LineNr">64 </span><span class="PreProc">sig</span> <a href='127next-word.subx.html#L306'>next-raw-word</a> line: (addr stream byte), out: (addr slice)  <span class="muComment"># does not skip '#' comments</span>
+<span id="L65" class="LineNr">65 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L6'>stream-empty?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L66" class="LineNr">66 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L30'>stream-full?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L67" class="LineNr">67 </span><span class="PreProc">sig</span> <a href='310copy-bytes.subx.html#L60'>stream-to-array</a> in: (addr stream _), out: (addr handle array _)
+<span id="L68" class="LineNr">68 </span><span class="PreProc">sig</span> <a href='310copy-bytes.subx.html#L120'>unquote-stream-to-array</a> in: (addr stream _), out: (addr handle array _)
+<span id="L69" class="LineNr">69 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L160'>stream-first</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: byte
+<span id="L70" class="LineNr">70 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L187'>stream-final</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: byte
+<span id="L71" class="LineNr">71 </span>
+<span id="L72" class="LineNr">72 </span><span class="muComment">#sig copy-bytes src: (addr byte), dest: (addr byte), n: int</span>
+<span id="L73" class="LineNr">73 </span><span class="PreProc">sig</span> <a href='312copy.subx.html#L3'>copy-array-object</a> src: (addr array _), dest-ah: (addr handle array _)
+<span id="L74" class="LineNr">74 </span><span class="PreProc">sig</span> <a href='301array-equal.subx.html#L5'>array-equal?</a> a: (addr array int), b: (addr array int)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean
+<span id="L75" class="LineNr">75 </span><span class="PreProc">sig</span> <a href='301array-equal.subx.html#L368'>parse-array-of-ints</a> s: (addr array byte), out: (addr handle array int)
+<span id="L76" class="LineNr">76 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L623'>parse-array-of-decimal-ints</a> s: (addr array byte), out: (addr handle array int)
+<span id="L77" class="LineNr">77 </span><span class="PreProc">sig</span> <a href='301array-equal.subx.html#L382'>check-array-equal</a> a: (addr array int), expected: (addr string), msg: (addr string)
+<span id="L78" class="LineNr">78 </span>
+<span id="L79" class="LineNr">79 </span><span class="PreProc">sig</span> <a href='314divide.subx.html#L3'>integer-divide</a> a: int, b: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">edx</span>: int
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/403unicode.mu.html b/html/baremetal/403unicode.mu.html
index 81caf261..30c58205 100644
--- a/html/baremetal/403unicode.mu.html
+++ b/html/baremetal/403unicode.mu.html
@@ -151,7 +151,7 @@ if ('onhashchange' in window) {
 <span id="L93" class="LineNr"> 93 </span>  <span class="muComment"># if at eof, return EOF</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">{</span>
 <span id="L95" class="LineNr"> 95 </span>    <span class="PreProc">var</span> eof?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> in
-<span id="L96" class="LineNr"> 96 </span>    compare eof?, <span class="Constant">0</span>  <span class="muComment"># false</span>
+<span id="L96" class="LineNr"> 96 </span>    compare eof?, <span class="Constant">0</span>/false
 <span id="L97" class="LineNr"> 97 </span>    <span class="PreProc">break-if-=</span>
 <span id="L98" class="LineNr"> 98 </span>    <span class="PreProc">return</span> <span class="Constant">0xffffffff</span>
 <span id="L99" class="LineNr"> 99 </span>  <span class="Delimiter">}</span>
diff --git a/html/baremetal/408float.mu.html b/html/baremetal/408float.mu.html
new file mode 100644
index 00000000..bd17e264
--- /dev/null
+++ b/html/baremetal/408float.mu.html
@@ -0,0 +1,85 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/408float.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.Constant { color: #008787; }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muComment { color: #005faf; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/408float.mu'>https://github.com/akkartik/mu/blob/main/baremetal/408float.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Some quick-n-dirty ways to create floats.</span>
+<span id="L2" class="LineNr"> 2 </span>
+<span id="L3" class="LineNr"> 3 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L3'>fill-in-rational</a></span> _out: (addr float), nr: int, dr: int <span class="Delimiter">{</span>
+<span id="L4" class="LineNr"> 4 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr float) <span class="SpecialChar">&lt;-</span> copy _out
+<span id="L5" class="LineNr"> 5 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> convert nr
+<span id="L6" class="LineNr"> 6 </span>  <span class="PreProc">var</span> divisor/<span class="Constant">xmm1</span>: float <span class="SpecialChar">&lt;-</span> convert dr
+<span id="L7" class="LineNr"> 7 </span>  result <span class="SpecialChar">&lt;-</span> divide divisor
+<span id="L8" class="LineNr"> 8 </span>  copy-to *out, result
+<span id="L9" class="LineNr"> 9 </span><span class="Delimiter">}</span>
+<span id="L10" class="LineNr">10 </span>
+<span id="L11" class="LineNr">11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L11'>fill-in-sqrt</a></span> _out: (addr float), n: int <span class="Delimiter">{</span>
+<span id="L12" class="LineNr">12 </span>  <span class="PreProc">var</span> out/<span class="Constant">edi</span>: (addr float) <span class="SpecialChar">&lt;-</span> copy _out
+<span id="L13" class="LineNr">13 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> convert n
+<span id="L14" class="LineNr">14 </span>  result <span class="SpecialChar">&lt;-</span> square-root result
+<span id="L15" class="LineNr">15 </span>  copy-to *out, result
+<span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
+<span id="L17" class="LineNr">17 </span>
+<span id="L18" class="LineNr">18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L18'>rational</a></span> nr: int, dr: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">xmm0</span>: float <span class="Delimiter">{</span>
+<span id="L19" class="LineNr">19 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> convert nr
+<span id="L20" class="LineNr">20 </span>  <span class="PreProc">var</span> divisor/<span class="Constant">xmm1</span>: float <span class="SpecialChar">&lt;-</span> convert dr
+<span id="L21" class="LineNr">21 </span>  result <span class="SpecialChar">&lt;-</span> divide divisor
+<span id="L22" class="LineNr">22 </span>  <span class="PreProc">return</span> result
+<span id="L23" class="LineNr">23 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/411string.mu.html b/html/baremetal/411string.mu.html
new file mode 100644
index 00000000..46b70129
--- /dev/null
+++ b/html/baremetal/411string.mu.html
@@ -0,0 +1,189 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/411string.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.CommentedCode { color: #8a8a8a; }
+.Constant { color: #008787; }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.muComment { color: #005faf; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/411string.mu'>https://github.com/akkartik/mu/blob/main/baremetal/411string.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># read up to 'len' graphemes after skipping the first 'start' ones</span>
+<span id="L2" class="LineNr">  2 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='411string.mu.html#L2'>substring</a></span> in: (addr array byte), start: int, len: int, out-ah: (addr handle array byte) <span class="Delimiter">{</span>
+<span id="L3" class="LineNr">  3 </span>  <span class="PreProc">var</span> in-stream: (stream byte <span class="Constant">0x100</span>)
+<span id="L4" class="LineNr">  4 </span>  <span class="PreProc">var</span> in-stream-addr/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address in-stream
+<span id="L5" class="LineNr">  5 </span>  <a href='108write.subx.html#L11'>write</a> in-stream-addr, in
+<span id="L6" class="LineNr">  6 </span>  <span class="PreProc">var</span> out-stream: (stream byte <span class="Constant">0x100</span>)
+<span id="L7" class="LineNr">  7 </span>  <span class="PreProc">var</span> out-stream-addr/<span class="Constant">edi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address out-stream
+<span id="L8" class="LineNr">  8 </span>  $substring:core: <span class="Delimiter">{</span>
+<span id="L9" class="LineNr">  9 </span>    <span class="muComment"># skip 'start' graphemes</span>
+<span id="L10" class="LineNr"> 10 </span>    <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L11" class="LineNr"> 11 </span>    <span class="Delimiter">{</span>
+<span id="L12" class="LineNr"> 12 </span>      compare i, start
+<span id="L13" class="LineNr"> 13 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L14" class="LineNr"> 14 </span>      <span class="Delimiter">{</span>
+<span id="L15" class="LineNr"> 15 </span>        <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> in-stream-addr
+<span id="L16" class="LineNr"> 16 </span>        compare dummy, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L17" class="LineNr"> 17 </span>        <span class="PreProc">break-if-=</span> $substring:core
+<span id="L18" class="LineNr"> 18 </span>      <span class="Delimiter">}</span>
+<span id="L19" class="LineNr"> 19 </span>      i <span class="SpecialChar">&lt;-</span> increment
+<span id="L20" class="LineNr"> 20 </span>      <span class="PreProc">loop</span>
+<span id="L21" class="LineNr"> 21 </span>    <span class="Delimiter">}</span>
+<span id="L22" class="LineNr"> 22 </span>    <span class="muComment"># copy 'len' graphemes</span>
+<span id="L23" class="LineNr"> 23 </span>    i <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L24" class="LineNr"> 24 </span>    <span class="Delimiter">{</span>
+<span id="L25" class="LineNr"> 25 </span>      compare i, len
+<span id="L26" class="LineNr"> 26 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L27" class="LineNr"> 27 </span>      <span class="Delimiter">{</span>
+<span id="L28" class="LineNr"> 28 </span>        <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> in-stream-addr
+<span id="L29" class="LineNr"> 29 </span>        compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L30" class="LineNr"> 30 </span>        <span class="PreProc">break-if-=</span> $substring:core
+<span id="L31" class="LineNr"> 31 </span>        <a href='403unicode.mu.html#L176'>write-grapheme</a> out-stream-addr, g
+<span id="L32" class="LineNr"> 32 </span>      <span class="Delimiter">}</span>
+<span id="L33" class="LineNr"> 33 </span>      i <span class="SpecialChar">&lt;-</span> increment
+<span id="L34" class="LineNr"> 34 </span>      <span class="PreProc">loop</span>
+<span id="L35" class="LineNr"> 35 </span>    <span class="Delimiter">}</span>
+<span id="L36" class="LineNr"> 36 </span>  <span class="Delimiter">}</span>
+<span id="L37" class="LineNr"> 37 </span>  <a href='310copy-bytes.subx.html#L60'>stream-to-array</a> out-stream-addr, out-ah
+<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">}</span>
+<span id="L39" class="LineNr"> 39 </span>
+<span id="L40" class="LineNr"> 40 </span><span class="PreProc">fn</span> <span class="muTest"><a href='411string.mu.html#L40'>test-substring</a></span> <span class="Delimiter">{</span>
+<span id="L41" class="LineNr"> 41 </span>  <span class="PreProc">var</span> out-h: (handle array byte)
+<span id="L42" class="LineNr"> 42 </span>  <span class="PreProc">var</span> out-ah/<span class="Constant">edi</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> address out-h
+<span id="L43" class="LineNr"> 43 </span>  <span class="muComment"># prefix substrings</span>
+<span id="L44" class="LineNr"> 44 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>, out-ah
+<span id="L45" class="LineNr"> 45 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L46" class="LineNr"> 46 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/null&quot;</span>
+<span id="L47" class="LineNr"> 47 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;&quot;</span>, <span class="Constant">0</span>, <span class="Constant">3</span>, out-ah
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L49" class="LineNr"> 49 </span><span class="CommentedCode">#?   print-string-to-real-screen out</span>
+<span id="L50" class="LineNr"> 50 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L51" class="LineNr"> 51 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/empty&quot;</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="muComment">#</span>
+<span id="L53" class="LineNr"> 53 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">0</span>, <span class="Constant">3</span>, out-ah
+<span id="L54" class="LineNr"> 54 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L55" class="LineNr"> 55 </span><span class="CommentedCode">#?   print-string-to-real-screen out</span>
+<span id="L56" class="LineNr"> 56 </span><span class="CommentedCode">#?   print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L57" class="LineNr"> 57 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;abc&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/truncate&quot;</span>
+<span id="L58" class="LineNr"> 58 </span>  <span class="muComment">#</span>
+<span id="L59" class="LineNr"> 59 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">0</span>, <span class="Constant">5</span>, out-ah
+<span id="L60" class="LineNr"> 60 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L61" class="LineNr"> 61 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/all&quot;</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="muComment">#</span>
+<span id="L63" class="LineNr"> 63 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">0</span>, <span class="Constant">7</span>, out-ah
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L65" class="LineNr"> 65 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/too-small&quot;</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="muComment"># substrings outside string</span>
+<span id="L67" class="LineNr"> 67 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">6</span>, <span class="Constant">1</span>, out-ah
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L69" class="LineNr"> 69 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/start-too-large&quot;</span>
+<span id="L70" class="LineNr"> 70 </span>  <span class="muComment"># trim prefix</span>
+<span id="L71" class="LineNr"> 71 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;&quot;</span>, <span class="Constant">2</span>, <span class="Constant">3</span>, out-ah
+<span id="L72" class="LineNr"> 72 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L73" class="LineNr"> 73 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/middle-empty&quot;</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="muComment">#</span>
+<span id="L75" class="LineNr"> 75 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">1</span>, <span class="Constant">2</span>, out-ah
+<span id="L76" class="LineNr"> 76 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L77" class="LineNr"> 77 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;bc&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/middle-truncate&quot;</span>
+<span id="L78" class="LineNr"> 78 </span>  <span class="muComment">#</span>
+<span id="L79" class="LineNr"> 79 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">1</span>, <span class="Constant">4</span>, out-ah
+<span id="L80" class="LineNr"> 80 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L81" class="LineNr"> 81 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;bcde&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/middle-all&quot;</span>
+<span id="L82" class="LineNr"> 82 </span>  <span class="muComment">#</span>
+<span id="L83" class="LineNr"> 83 </span>  <a href='411string.mu.html#L2'>substring</a> <span class="Constant">&quot;abcde&quot;</span>, <span class="Constant">1</span>, <span class="Constant">5</span>, out-ah
+<span id="L84" class="LineNr"> 84 </span>  <span class="PreProc">var</span> out/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *out-ah
+<span id="L85" class="LineNr"> 85 </span>  <a href='105string-equal.subx.html#L213'>check-strings-equal</a> out, <span class="Constant">&quot;bcde&quot;</span>, <span class="Constant">&quot;F - <a href='411string.mu.html#L40'>test-substring</a>/middle-too-small&quot;</span>
+<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span>
+<span id="L87" class="LineNr"> 87 </span>
+<span id="L88" class="LineNr"> 88 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='411string.mu.html#L88'>split-string</a></span> in: (addr array byte), delim: grapheme, out: (addr handle array (handle array byte)) <span class="Delimiter">{</span>
+<span id="L89" class="LineNr"> 89 </span>  <span class="PreProc">var</span> in-stream: (stream byte <span class="Constant">0x100</span>)
+<span id="L90" class="LineNr"> 90 </span>  <span class="PreProc">var</span> in-stream-addr/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address in-stream
+<span id="L91" class="LineNr"> 91 </span>  <a href='108write.subx.html#L11'>write</a> in-stream-addr, in
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> tokens-stream: (stream (handle array byte) <span class="Constant">0x100</span>)
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> tokens-stream-addr/<span class="Constant">edi</span>: (addr stream (handle array byte)) <span class="SpecialChar">&lt;-</span> address tokens-stream
+<span id="L94" class="LineNr"> 94 </span>  <span class="PreProc">var</span> curr-stream: (stream byte <span class="Constant">0x100</span>)
+<span id="L95" class="LineNr"> 95 </span>  <span class="PreProc">var</span> curr-stream-addr/<span class="Constant">ecx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address curr-stream
+<span id="L96" class="LineNr"> 96 </span>  $split-string:core: <span class="Delimiter">{</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> in-stream-addr
+<span id="L98" class="LineNr"> 98 </span>    compare g, <span class="Constant">0xffffffff</span>
+<span id="L99" class="LineNr"> 99 </span>    <span class="PreProc">break-if-=</span>
+<span id="L100" class="LineNr">100 </span><span class="CommentedCode">#?     print-grapheme-to-real-screen g</span>
+<span id="L101" class="LineNr">101 </span><span class="CommentedCode">#?     print-string-to-real-screen &quot;\n&quot;</span>
+<span id="L102" class="LineNr">102 </span>    compare g, delim
+<span id="L103" class="LineNr">103 </span>    <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L105" class="LineNr">105 </span>      <span class="muComment"># token complete; flush</span>
+<span id="L106" class="LineNr">106 </span>      <span class="PreProc">var</span> token: (handle array byte)
+<span id="L107" class="LineNr">107 </span>      <span class="PreProc">var</span> token-ah/<span class="Constant">eax</span>: (addr handle array byte) <span class="SpecialChar">&lt;-</span> address token
+<span id="L108" class="LineNr">108 </span>      <a href='310copy-bytes.subx.html#L60'>stream-to-array</a> curr-stream-addr, token-ah
+<span id="L109" class="LineNr">109 </span>      <a href='309stream.subx.html#L54'>write-to-stream</a> tokens-stream-addr, token-ah
+<span id="L110" class="LineNr">110 </span>      <a href='106stream.subx.html#L20'>clear-stream</a> curr-stream-addr
+<span id="L111" class="LineNr">111 </span>      <span class="PreProc">loop</span> $split-string:core
+<span id="L112" class="LineNr">112 </span>    <span class="Delimiter">}</span>
+<span id="L113" class="LineNr">113 </span>    <a href='403unicode.mu.html#L176'>write-grapheme</a> curr-stream-addr, g
+<span id="L114" class="LineNr">114 </span>    <span class="PreProc">loop</span>
+<span id="L115" class="LineNr">115 </span>  <span class="Delimiter">}</span>
+<span id="L116" class="LineNr">116 </span>  <a href='310copy-bytes.subx.html#L60'>stream-to-array</a> tokens-stream-addr, out
+<span id="L117" class="LineNr">117 </span><span class="Delimiter">}</span>
+<span id="L118" class="LineNr">118 </span>
+<span id="L119" class="LineNr">119 </span><span class="PreProc">fn</span> <span class="muTest"><a href='411string.mu.html#L119'>test-split-string</a></span> <span class="Delimiter">{</span>
+<span id="L120" class="LineNr">120 </span>  <span class="PreProc">var</span> out-h: (handle array (handle array byte))
+<span id="L121" class="LineNr">121 </span>  <span class="PreProc">var</span> out-ah/<span class="Constant">edi</span>: (addr handle array (handle array byte)) <span class="SpecialChar">&lt;-</span> address out-h
+<span id="L122" class="LineNr">122 </span>  <span class="muComment"># prefix substrings</span>
+<span id="L123" class="LineNr">123 </span>  <a href='411string.mu.html#L88'>split-string</a> <span class="Constant">&quot;bab&quot;</span>, <span class="Constant">0x61</span>, out-ah
+<span id="L124" class="LineNr">124 </span>  <span class="muComment"># no crash</span>
+<span id="L125" class="LineNr">125 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/412render-float-decimal.mu.html b/html/baremetal/412render-float-decimal.mu.html
new file mode 100644
index 00000000..4bcbefd7
--- /dev/null
+++ b/html/baremetal/412render-float-decimal.mu.html
@@ -0,0 +1,667 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/412render-float-decimal.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.Constant { color: #008787; }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muTest { color: #5f8700; }
+.muComment { color: #005faf; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/412render-float-decimal.mu'>https://github.com/akkartik/mu/blob/main/baremetal/412render-float-decimal.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># print out floats in decimal</span>
+<span id="L2" class="LineNr">  2 </span><span class="muComment"># <a href="https://research.swtch.com/ftoa">https://research.swtch.com/ftoa</a></span>
+<span id="L3" class="LineNr">  3 </span><span class="muComment">#</span>
+<span id="L4" class="LineNr">  4 </span><span class="muComment"># Basic idea:</span>
+<span id="L5" class="LineNr">  5 </span><span class="muComment">#   Ignoring sign, floating point numbers are represented as 1.mantissa * 2^exponent</span>
+<span id="L6" class="LineNr">  6 </span><span class="muComment">#   Therefore, to print a float in decimal, we need to:</span>
+<span id="L7" class="LineNr">  7 </span><span class="muComment">#     - compute its value without decimal point</span>
+<span id="L8" class="LineNr">  8 </span><span class="muComment">#     - convert to an array of decimal digits</span>
+<span id="L9" class="LineNr">  9 </span><span class="muComment">#     - print out the array while inserting the decimal point appropriately</span>
+<span id="L10" class="LineNr"> 10 </span><span class="muComment">#</span>
+<span id="L11" class="LineNr"> 11 </span><span class="muComment"># Basic complication: the computation generates numbers larger than an int can</span>
+<span id="L12" class="LineNr"> 12 </span><span class="muComment"># hold. We need a way to represent big ints.</span>
+<span id="L13" class="LineNr"> 13 </span><span class="muComment">#</span>
+<span id="L14" class="LineNr"> 14 </span><span class="muComment"># Key insight: use a representation for big ints that's close to what we need</span>
+<span id="L15" class="LineNr"> 15 </span><span class="muComment"># anyway, an array of decimal digits.</span>
+<span id="L16" class="LineNr"> 16 </span><span class="muComment">#</span>
+<span id="L17" class="LineNr"> 17 </span><span class="muComment"># Style note: we aren't creating a big int library here. The only operations</span>
+<span id="L18" class="LineNr"> 18 </span><span class="muComment"># we need are halving and doubling. Following the link above, it seems more</span>
+<span id="L19" class="LineNr"> 19 </span><span class="muComment"># comprehensible to keep these operations inlined so that we can track the</span>
+<span id="L20" class="LineNr"> 20 </span><span class="muComment"># position of the decimal point with dispatch.</span>
+<span id="L21" class="LineNr"> 21 </span><span class="muComment">#</span>
+<span id="L22" class="LineNr"> 22 </span><span class="muComment"># This approach turns out to be fast enough for most purposes.</span>
+<span id="L23" class="LineNr"> 23 </span><span class="muComment"># Optimizations, however, get wildly more complex.</span>
+<span id="L24" class="LineNr"> 24 </span>
+<span id="L25" class="LineNr"> 25 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a></span> <span class="Delimiter">{</span>
+<span id="L26" class="LineNr"> 26 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L27" class="LineNr"> 27 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L28" class="LineNr"> 28 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L29" class="LineNr"> 29 </span>  <span class="muComment"># 0.5</span>
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">var</span> half/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">1</span>, <span class="Constant">2</span>
+<span id="L31" class="LineNr"> 31 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, half, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L32" class="LineNr"> 32 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;0.5 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a> 0.5&quot;</span>
+<span id="L33" class="LineNr"> 33 </span>  <span class="muComment"># 0.25</span>
+<span id="L34" class="LineNr"> 34 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> quarter/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">1</span>, <span class="Constant">4</span>
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, quarter, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L37" class="LineNr"> 37 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;0.25 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a> 0.25&quot;</span>
+<span id="L38" class="LineNr"> 38 </span>  <span class="muComment"># 0.75</span>
+<span id="L39" class="LineNr"> 39 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> three-quarters/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">3</span>, <span class="Constant">4</span>
+<span id="L41" class="LineNr"> 41 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, three-quarters, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L42" class="LineNr"> 42 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;0.75 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a> 0.75&quot;</span>
+<span id="L43" class="LineNr"> 43 </span>  <span class="muComment"># 0.125</span>
+<span id="L44" class="LineNr"> 44 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L45" class="LineNr"> 45 </span>  <span class="PreProc">var</span> eighth/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">1</span>, <span class="Constant">8</span>
+<span id="L46" class="LineNr"> 46 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, eighth, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L47" class="LineNr"> 47 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;0.125 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a> 0.125&quot;</span>
+<span id="L48" class="LineNr"> 48 </span>  <span class="muComment"># 0.0625; start using scientific notation</span>
+<span id="L49" class="LineNr"> 49 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> sixteenth/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">1</span>, <span class="Constant">0x10</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, sixteenth, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L52" class="LineNr"> 52 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;6.25e-2 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a> 0.0625&quot;</span>
+<span id="L53" class="LineNr"> 53 </span>  <span class="muComment"># sqrt(2); truncate floats with lots of digits after the decimal but not too many before</span>
+<span id="L54" class="LineNr"> 54 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L55" class="LineNr"> 55 </span>  <span class="PreProc">var</span> two-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">2</span>, <span class="Constant">1</span>
+<span id="L56" class="LineNr"> 56 </span>  <span class="PreProc">var</span> sqrt-2/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> square-root two-f
+<span id="L57" class="LineNr"> 57 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, sqrt-2, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L58" class="LineNr"> 58 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;1.414 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L25'>test-render-float-decimal-normal</a> √2&quot;</span>
+<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">}</span>
+<span id="L60" class="LineNr"> 60 </span>
+<span id="L61" class="LineNr"> 61 </span><span class="muComment"># print whole integers without decimals</span>
+<span id="L62" class="LineNr"> 62 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a></span> <span class="Delimiter">{</span>
+<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L65" class="LineNr"> 65 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="muComment"># 1</span>
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> one-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">1</span>, <span class="Constant">1</span>
+<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, one-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L69" class="LineNr"> 69 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;1 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> 1&quot;</span>
+<span id="L70" class="LineNr"> 70 </span>  <span class="muComment"># 2</span>
+<span id="L71" class="LineNr"> 71 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L72" class="LineNr"> 72 </span>  <span class="PreProc">var</span> two-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">2</span>, <span class="Constant">1</span>
+<span id="L73" class="LineNr"> 73 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, two-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L74" class="LineNr"> 74 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;2 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> 2&quot;</span>
+<span id="L75" class="LineNr"> 75 </span>  <span class="muComment"># 10</span>
+<span id="L76" class="LineNr"> 76 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L77" class="LineNr"> 77 </span>  <span class="PreProc">var</span> ten-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">0xa</span>, <span class="Constant">1</span>
+<span id="L78" class="LineNr"> 78 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, ten-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L79" class="LineNr"> 79 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;10 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> 10&quot;</span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="muComment"># -10</span>
+<span id="L81" class="LineNr"> 81 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L82" class="LineNr"> 82 </span>  <span class="PreProc">var</span> minus-ten-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">-0xa</span>, <span class="Constant">1</span>
+<span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, minus-ten-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L84" class="LineNr"> 84 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;-10 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> -10&quot;</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="muComment"># 999</span>
+<span id="L86" class="LineNr"> 86 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L87" class="LineNr"> 87 </span>  <span class="PreProc">var</span> minus-ten-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">0x3e7</span>, <span class="Constant">1</span>
+<span id="L88" class="LineNr"> 88 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, minus-ten-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L89" class="LineNr"> 89 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;999 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> 1000&quot;</span>
+<span id="L90" class="LineNr"> 90 </span>  <span class="muComment"># 1000 - start using scientific notation</span>
+<span id="L91" class="LineNr"> 91 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> minus-ten-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='408float.mu.html#L18'>rational</a> <span class="Constant">0x3e8</span>, <span class="Constant">1</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, minus-ten-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L94" class="LineNr"> 94 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;1.00e3 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> 1000&quot;</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="muComment"># 100,000</span>
+<span id="L96" class="LineNr"> 96 </span>  <a href='500text-screen.mu.html#L194'>clear-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L97" class="LineNr"> 97 </span>  <span class="PreProc">var</span> hundred-thousand/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x186a0</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="PreProc">var</span> hundred-thousand-f/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> convert hundred-thousand
+<span id="L99" class="LineNr"> 99 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, hundred-thousand-f, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L100" class="LineNr">100 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;1.00e5 &quot;</span>, <span class="Constant">&quot;F - <a href='412render-float-decimal.mu.html#L62'>test-render-float-decimal-integer</a> 100,000&quot;</span>
+<span id="L101" class="LineNr">101 </span><span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </span>
+<span id="L103" class="LineNr">103 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L103'>test-render-float-decimal-zero</a></span> <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L105" class="LineNr">105 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L106" class="LineNr">106 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L107" class="LineNr">107 </span>  <span class="PreProc">var</span> zero: float
+<span id="L108" class="LineNr">108 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, zero, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L109" class="LineNr">109 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;0 &quot;</span>, <span class="Constant">&quot;F - test-render-float-decimal-zero&quot;</span>
+<span id="L110" class="LineNr">110 </span><span class="Delimiter">}</span>
+<span id="L111" class="LineNr">111 </span>
+<span id="L112" class="LineNr">112 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L112'>test-render-float-decimal-negative-zero</a></span> <span class="Delimiter">{</span>
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L114" class="LineNr">114 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L115" class="LineNr">115 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L116" class="LineNr">116 </span>  <span class="PreProc">var</span> n: int
+<span id="L117" class="LineNr">117 </span>  copy-to n, <span class="Constant">0x80000000</span>
+<span id="L118" class="LineNr">118 </span>  <span class="PreProc">var</span> negative-zero/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> reinterpret n
+<span id="L119" class="LineNr">119 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, negative-zero, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L120" class="LineNr">120 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;-0 &quot;</span>, <span class="Constant">&quot;F - test-render-float-decimal-negative-zero&quot;</span>
+<span id="L121" class="LineNr">121 </span><span class="Delimiter">}</span>
+<span id="L122" class="LineNr">122 </span>
+<span id="L123" class="LineNr">123 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L123'>test-render-float-decimal-infinity</a></span> <span class="Delimiter">{</span>
+<span id="L124" class="LineNr">124 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L126" class="LineNr">126 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> n: int
+<span id="L128" class="LineNr">128 </span>  <span class="muComment">#          0|11111111|00000000000000000000000</span>
+<span id="L129" class="LineNr">129 </span>  <span class="muComment">#          0111|1111|1000|0000|0000|0000|0000|0000</span>
+<span id="L130" class="LineNr">130 </span>  copy-to n, <span class="Constant">0x7f800000</span>
+<span id="L131" class="LineNr">131 </span>  <span class="PreProc">var</span> infinity/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> reinterpret n
+<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, infinity, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L133" class="LineNr">133 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;Inf &quot;</span>, <span class="Constant">&quot;F - test-render-float-decimal-infinity&quot;</span>
+<span id="L134" class="LineNr">134 </span><span class="Delimiter">}</span>
+<span id="L135" class="LineNr">135 </span>
+<span id="L136" class="LineNr">136 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L136'>test-render-float-decimal-negative-infinity</a></span> <span class="Delimiter">{</span>
+<span id="L137" class="LineNr">137 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L138" class="LineNr">138 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L139" class="LineNr">139 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L140" class="LineNr">140 </span>  <span class="PreProc">var</span> n: int
+<span id="L141" class="LineNr">141 </span>  copy-to n, <span class="Constant">0xff800000</span>
+<span id="L142" class="LineNr">142 </span>  <span class="PreProc">var</span> negative-infinity/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> reinterpret n
+<span id="L143" class="LineNr">143 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, negative-infinity, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L144" class="LineNr">144 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;-Inf &quot;</span>, <span class="Constant">&quot;F - test-render-float-decimal-negative-infinity&quot;</span>
+<span id="L145" class="LineNr">145 </span><span class="Delimiter">}</span>
+<span id="L146" class="LineNr">146 </span>
+<span id="L147" class="LineNr">147 </span><span class="PreProc">fn</span> <span class="muTest"><a href='412render-float-decimal.mu.html#L147'>test-render-float-decimal-not-a-number</a></span> <span class="Delimiter">{</span>
+<span id="L148" class="LineNr">148 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L149" class="LineNr">149 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L150" class="LineNr">150 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>, <span class="Constant">5</span>  <span class="muComment"># 32 columns should be more than enough</span>
+<span id="L151" class="LineNr">151 </span>  <span class="PreProc">var</span> n: int
+<span id="L152" class="LineNr">152 </span>  copy-to n, <span class="Constant">0xffffffff</span>  <span class="muComment"># exponent must be all 1's, and mantissa must be non-zero</span>
+<span id="L153" class="LineNr">153 </span>  <span class="PreProc">var</span> nan/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> reinterpret n
+<span id="L154" class="LineNr">154 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a> <a href='500text-screen.mu.html#L9'>screen</a>, nan, <span class="Constant">3</span>/precision, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
+<span id="L155" class="LineNr">155 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;NaN &quot;</span>, <span class="Constant">&quot;F - test-render-float-decimal-not-a-number&quot;</span>
+<span id="L156" class="LineNr">156 </span><span class="Delimiter">}</span>
+<span id="L157" class="LineNr">157 </span>
+<span id="L158" class="LineNr">158 </span><span class="muComment"># 'precision' controls the maximum width past which we resort to scientific notation</span>
+<span id="L159" class="LineNr">159 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L159'>render-float-decimal</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), in: float, precision: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L160" class="LineNr">160 </span>  <span class="muComment"># - special names</span>
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> bits/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> reinterpret in
+<span id="L162" class="LineNr">162 </span>  compare bits, <span class="Constant">0</span>
+<span id="L163" class="LineNr">163 </span>  <span class="Delimiter">{</span>
+<span id="L164" class="LineNr">164 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L165" class="LineNr">165 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L116'>draw-text-rightward-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;0&quot;</span>, x, y, color, background-color
+<span id="L166" class="LineNr">166 </span>    <span class="PreProc">return</span> new-x
+<span id="L167" class="LineNr">167 </span>  <span class="Delimiter">}</span>
+<span id="L168" class="LineNr">168 </span>  compare bits, <span class="Constant">0x80000000</span>
+<span id="L169" class="LineNr">169 </span>  <span class="Delimiter">{</span>
+<span id="L170" class="LineNr">170 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L171" class="LineNr">171 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L116'>draw-text-rightward-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;-0&quot;</span>, x, y, color, background-color
+<span id="L172" class="LineNr">172 </span>    <span class="PreProc">return</span> new-x
+<span id="L173" class="LineNr">173 </span>  <span class="Delimiter">}</span>
+<span id="L174" class="LineNr">174 </span>  compare bits, <span class="Constant">0x7f800000</span>
+<span id="L175" class="LineNr">175 </span>  <span class="Delimiter">{</span>
+<span id="L176" class="LineNr">176 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L177" class="LineNr">177 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L116'>draw-text-rightward-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;Inf&quot;</span>, x, y, color, background-color
+<span id="L178" class="LineNr">178 </span>    <span class="PreProc">return</span> new-x
+<span id="L179" class="LineNr">179 </span>  <span class="Delimiter">}</span>
+<span id="L180" class="LineNr">180 </span>  compare bits, <span class="Constant">0xff800000</span>
+<span id="L181" class="LineNr">181 </span>  <span class="Delimiter">{</span>
+<span id="L182" class="LineNr">182 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L183" class="LineNr">183 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L116'>draw-text-rightward-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;-Inf&quot;</span>, x, y, color, background-color
+<span id="L184" class="LineNr">184 </span>    <span class="PreProc">return</span> new-x
+<span id="L185" class="LineNr">185 </span>  <span class="Delimiter">}</span>
+<span id="L186" class="LineNr">186 </span>  <span class="PreProc">var</span> exponent/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy bits
+<span id="L187" class="LineNr">187 </span>  exponent <span class="SpecialChar">&lt;-</span> shift-right <span class="Constant">0x17</span>  <span class="muComment"># 23 bits of mantissa</span>
+<span id="L188" class="LineNr">188 </span>  exponent <span class="SpecialChar">&lt;-</span> and <span class="Constant">0xff</span>
+<span id="L189" class="LineNr">189 </span>  exponent <span class="SpecialChar">&lt;-</span> subtract <span class="Constant">0x7f</span>
+<span id="L190" class="LineNr">190 </span>  compare exponent, <span class="Constant">0x80</span>
+<span id="L191" class="LineNr">191 </span>  <span class="Delimiter">{</span>
+<span id="L192" class="LineNr">192 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L193" class="LineNr">193 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L116'>draw-text-rightward-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;NaN&quot;</span>, x, y, color, background-color
+<span id="L194" class="LineNr">194 </span>    <span class="PreProc">return</span> new-x
+<span id="L195" class="LineNr">195 </span>  <span class="Delimiter">}</span>
+<span id="L196" class="LineNr">196 </span>  <span class="muComment"># - regular numbers</span>
+<span id="L197" class="LineNr">197 </span>  <span class="PreProc">var</span> sign/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy bits
+<span id="L198" class="LineNr">198 </span>  sign <span class="SpecialChar">&lt;-</span> shift-right <span class="Constant">0x1f</span>
+<span id="L199" class="LineNr">199 </span>  <span class="Delimiter">{</span>
+<span id="L200" class="LineNr">200 </span>    compare sign, <span class="Constant">1</span>
+<span id="L201" class="LineNr">201 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L202" class="LineNr">202 </span>    <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2d</span>/minus, x, y, color, background-color
+<span id="L203" class="LineNr">203 </span>    increment x
+<span id="L204" class="LineNr">204 </span>  <span class="Delimiter">}</span>
+<span id="L205" class="LineNr">205 </span>
+<span id="L206" class="LineNr">206 </span>  <span class="muComment"># v = 1.mantissa (in base 2) &lt;&lt; 0x17</span>
+<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> v/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy bits
+<span id="L208" class="LineNr">208 </span>  v <span class="SpecialChar">&lt;-</span> and <span class="Constant">0x7fffff</span>
+<span id="L209" class="LineNr">209 </span>  v <span class="SpecialChar">&lt;-</span> or <span class="Constant">0x00800000</span>  <span class="muComment"># insert implicit 1</span>
+<span id="L210" class="LineNr">210 </span>  <span class="muComment"># e = exponent - 0x17</span>
+<span id="L211" class="LineNr">211 </span>  <span class="PreProc">var</span> e/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy exponent
+<span id="L212" class="LineNr">212 </span>  e <span class="SpecialChar">&lt;-</span> subtract <span class="Constant">0x17</span>  <span class="muComment"># move decimal place from before mantissa to after</span>
+<span id="L213" class="LineNr">213 </span>
+<span id="L214" class="LineNr">214 </span>  <span class="muComment"># initialize buffer with decimal representation of v</span>
+<span id="L215" class="LineNr">215 </span>  <span class="muComment"># unlike <a href="https://research.swtch.com/ftoa">https://research.swtch.com/ftoa</a>, no ascii here</span>
+<span id="L216" class="LineNr">216 </span>  <span class="PreProc">var</span> buf-storage: (array byte <span class="Constant">0x7f</span>)
+<span id="L217" class="LineNr">217 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> address buf-storage
+<span id="L218" class="LineNr">218 </span>  <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L249'>decimal-digits</a> v, buf
+<span id="L219" class="LineNr">219 </span>  <span class="muComment"># I suspect we can do without reversing, but we'll follow <a href="https://research.swtch.com/ftoa">https://research.swtch.com/ftoa</a></span>
+<span id="L220" class="LineNr">220 </span>  <span class="muComment"># closely for now.</span>
+<span id="L221" class="LineNr">221 </span>  <a href='412render-float-decimal.mu.html#L266'>reverse-digits</a> buf, n
+<span id="L222" class="LineNr">222 </span>
+<span id="L223" class="LineNr">223 </span>  <span class="muComment"># loop if e &gt; 0</span>
+<span id="L224" class="LineNr">224 </span>  <span class="Delimiter">{</span>
+<span id="L225" class="LineNr">225 </span>    compare e, <span class="Constant">0</span>
+<span id="L226" class="LineNr">226 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L227" class="LineNr">227 </span>    n <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L288'>double-array-of-decimal-digits</a> buf, n
+<span id="L228" class="LineNr">228 </span>    e <span class="SpecialChar">&lt;-</span> decrement
+<span id="L229" class="LineNr">229 </span>    <span class="PreProc">loop</span>
+<span id="L230" class="LineNr">230 </span>  <span class="Delimiter">}</span>
+<span id="L231" class="LineNr">231 </span>
+<span id="L232" class="LineNr">232 </span>  <span class="PreProc">var</span> dp/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy n
+<span id="L233" class="LineNr">233 </span>
+<span id="L234" class="LineNr">234 </span>  <span class="muComment"># loop if e &lt; 0</span>
+<span id="L235" class="LineNr">235 </span>  <span class="Delimiter">{</span>
+<span id="L236" class="LineNr">236 </span>    compare e, <span class="Constant">0</span>
+<span id="L237" class="LineNr">237 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L238" class="LineNr">238 </span>    n, dp <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L339'>halve-array-of-decimal-digits</a> buf, n, dp
+<span id="L239" class="LineNr">239 </span>    e <span class="SpecialChar">&lt;-</span> increment
+<span id="L240" class="LineNr">240 </span>    <span class="PreProc">loop</span>
+<span id="L241" class="LineNr">241 </span>  <span class="Delimiter">}</span>
+<span id="L242" class="LineNr">242 </span>
+<span id="L243" class="LineNr">243 </span>  <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L413'>render-float-buffer</a> <a href='500text-screen.mu.html#L9'>screen</a>, buf, n, dp, precision, x, y, color, background-color
+<span id="L244" class="LineNr">244 </span>  <span class="PreProc">return</span> new-x
+<span id="L245" class="LineNr">245 </span><span class="Delimiter">}</span>
+<span id="L246" class="LineNr">246 </span>
+<span id="L247" class="LineNr">247 </span><span class="muComment"># store the decimal digits of 'n' into 'buf', units first</span>
+<span id="L248" class="LineNr">248 </span><span class="muComment"># n must be positive</span>
+<span id="L249" class="LineNr">249 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L249'>decimal-digits</a></span> n: int, _buf: (addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L250" class="LineNr">250 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _buf
+<span id="L251" class="LineNr">251 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L252" class="LineNr">252 </span>  <span class="PreProc">var</span> curr/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy n
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> curr-byte/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L254" class="LineNr">254 </span>  <span class="Delimiter">{</span>
+<span id="L255" class="LineNr">255 </span>    compare curr, <span class="Constant">0</span>
+<span id="L256" class="LineNr">256 </span>    <span class="PreProc">break-if-=</span>
+<span id="L257" class="LineNr">257 </span>    curr, curr-byte <span class="SpecialChar">&lt;-</span> <a href='314divide.subx.html#L3'>integer-divide</a> curr, <span class="Constant">0xa</span>
+<span id="L258" class="LineNr">258 </span>    <span class="PreProc">var</span> dest/<span class="Constant">ebx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, i
+<span id="L259" class="LineNr">259 </span>    copy-byte-to *dest, curr-byte
+<span id="L260" class="LineNr">260 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L261" class="LineNr">261 </span>    <span class="PreProc">loop</span>
+<span id="L262" class="LineNr">262 </span>  <span class="Delimiter">}</span>
+<span id="L263" class="LineNr">263 </span>  <span class="PreProc">return</span> i
+<span id="L264" class="LineNr">264 </span><span class="Delimiter">}</span>
+<span id="L265" class="LineNr">265 </span>
+<span id="L266" class="LineNr">266 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L266'>reverse-digits</a></span> _buf: (addr array byte), n: int <span class="Delimiter">{</span>
+<span id="L267" class="LineNr">267 </span>  <span class="PreProc">var</span> buf/<span class="Constant">esi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _buf
+<span id="L268" class="LineNr">268 </span>  <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L269" class="LineNr">269 </span>  <span class="PreProc">var</span> right/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy n
+<span id="L270" class="LineNr">270 </span>  right <span class="SpecialChar">&lt;-</span> decrement
+<span id="L271" class="LineNr">271 </span>  <span class="Delimiter">{</span>
+<span id="L272" class="LineNr">272 </span>    compare left, right
+<span id="L273" class="LineNr">273 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L274" class="LineNr">274 </span>    <span class="Delimiter">{</span>
+<span id="L275" class="LineNr">275 </span>      <span class="PreProc">var</span> l-a/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, left
+<span id="L276" class="LineNr">276 </span>      <span class="PreProc">var</span> r-a/<span class="Constant">edx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, right
+<span id="L277" class="LineNr">277 </span>      <span class="PreProc">var</span> l/<span class="Constant">ebx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *l-a
+<span id="L278" class="LineNr">278 </span>      <span class="PreProc">var</span> r/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *r-a
+<span id="L279" class="LineNr">279 </span>      copy-byte-to *l-a, r
+<span id="L280" class="LineNr">280 </span>      copy-byte-to *r-a, l
+<span id="L281" class="LineNr">281 </span>    <span class="Delimiter">}</span>
+<span id="L282" class="LineNr">282 </span>    left <span class="SpecialChar">&lt;-</span> increment
+<span id="L283" class="LineNr">283 </span>    right <span class="SpecialChar">&lt;-</span> decrement
+<span id="L284" class="LineNr">284 </span>    <span class="PreProc">loop</span>
+<span id="L285" class="LineNr">285 </span>  <span class="Delimiter">}</span>
+<span id="L286" class="LineNr">286 </span><span class="Delimiter">}</span>
+<span id="L287" class="LineNr">287 </span>
+<span id="L288" class="LineNr">288 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L288'>double-array-of-decimal-digits</a></span> _buf: (addr array byte), _n: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L289" class="LineNr">289 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _buf
+<span id="L290" class="LineNr">290 </span>  <span class="muComment"># initialize delta</span>
+<span id="L291" class="LineNr">291 </span>  <span class="PreProc">var</span> delta/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L292" class="LineNr">292 </span>  <span class="Delimiter">{</span>
+<span id="L293" class="LineNr">293 </span>    <span class="PreProc">var</span> curr/<span class="Constant">ebx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, <span class="Constant">0</span>
+<span id="L294" class="LineNr">294 </span>    <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *curr
+<span id="L295" class="LineNr">295 </span>    compare tmp, <span class="Constant">5</span>
+<span id="L296" class="LineNr">296 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L297" class="LineNr">297 </span>    delta <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L298" class="LineNr">298 </span>  <span class="Delimiter">}</span>
+<span id="L299" class="LineNr">299 </span>  <span class="muComment"># loop</span>
+<span id="L300" class="LineNr">300 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L301" class="LineNr">301 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy _n
+<span id="L302" class="LineNr">302 </span>  i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L303" class="LineNr">303 </span>  <span class="Delimiter">{</span>
+<span id="L304" class="LineNr">304 </span>    compare i, <span class="Constant">0</span>
+<span id="L305" class="LineNr">305 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L306" class="LineNr">306 </span>    <span class="muComment"># x += 2*buf[i]</span>
+<span id="L307" class="LineNr">307 </span>    <span class="Delimiter">{</span>
+<span id="L308" class="LineNr">308 </span>      <span class="PreProc">var</span> tmp/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, i
+<span id="L309" class="LineNr">309 </span>      <span class="PreProc">var</span> tmp2/<span class="Constant">ecx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *tmp
+<span id="L310" class="LineNr">310 </span>      x <span class="SpecialChar">&lt;-</span> add tmp2
+<span id="L311" class="LineNr">311 </span>      x <span class="SpecialChar">&lt;-</span> add tmp2
+<span id="L312" class="LineNr">312 </span>    <span class="Delimiter">}</span>
+<span id="L313" class="LineNr">313 </span>    <span class="muComment"># x, buf[i+delta] = x/10, x%10</span>
+<span id="L314" class="LineNr">314 </span>    <span class="Delimiter">{</span>
+<span id="L315" class="LineNr">315 </span>      <span class="PreProc">var</span> dest-index/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy i
+<span id="L316" class="LineNr">316 </span>      dest-index <span class="SpecialChar">&lt;-</span> add delta
+<span id="L317" class="LineNr">317 </span>      <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, dest-index
+<span id="L318" class="LineNr">318 </span>      <span class="PreProc">var</span> next-digit/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L319" class="LineNr">319 </span>      x, next-digit <span class="SpecialChar">&lt;-</span> <a href='314divide.subx.html#L3'>integer-divide</a> x, <span class="Constant">0xa</span>
+<span id="L320" class="LineNr">320 </span>      copy-byte-to *dest, next-digit
+<span id="L321" class="LineNr">321 </span>    <span class="Delimiter">}</span>
+<span id="L322" class="LineNr">322 </span>    <span class="muComment">#</span>
+<span id="L323" class="LineNr">323 </span>    i <span class="SpecialChar">&lt;-</span> decrement
+<span id="L324" class="LineNr">324 </span>    <span class="PreProc">loop</span>
+<span id="L325" class="LineNr">325 </span>  <span class="Delimiter">}</span>
+<span id="L326" class="LineNr">326 </span>  <span class="muComment"># final patch-up</span>
+<span id="L327" class="LineNr">327 </span>  <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _n
+<span id="L328" class="LineNr">328 </span>  compare delta, <span class="Constant">1</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">var</span> curr/<span class="Constant">ebx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, <span class="Constant">0</span>
+<span id="L332" class="LineNr">332 </span>    <span class="PreProc">var</span> one/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L333" class="LineNr">333 </span>    copy-byte-to *curr, one
+<span id="L334" class="LineNr">334 </span>    n <span class="SpecialChar">&lt;-</span> increment
+<span id="L335" class="LineNr">335 </span>  <span class="Delimiter">}</span>
+<span id="L336" class="LineNr">336 </span>  <span class="PreProc">return</span> n
+<span id="L337" class="LineNr">337 </span><span class="Delimiter">}</span>
+<span id="L338" class="LineNr">338 </span>
+<span id="L339" class="LineNr">339 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L339'>halve-array-of-decimal-digits</a></span> _buf: (addr array byte), _n: int, _dp: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">edx</span>: int <span class="Delimiter">{</span>
+<span id="L340" class="LineNr">340 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _buf
+<span id="L341" class="LineNr">341 </span>  <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _n
+<span id="L342" class="LineNr">342 </span>  <span class="PreProc">var</span> dp/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _dp
+<span id="L343" class="LineNr">343 </span>  <span class="muComment"># initialize one side</span>
+<span id="L344" class="LineNr">344 </span>  <span class="Delimiter">{</span>
+<span id="L345" class="LineNr">345 </span>    <span class="muComment"># if buf[n-1]%2 == 0, break</span>
+<span id="L346" class="LineNr">346 </span>    <span class="PreProc">var</span> right-index/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy n
+<span id="L347" class="LineNr">347 </span>    right-index <span class="SpecialChar">&lt;-</span> decrement
+<span id="L348" class="LineNr">348 </span>    <span class="PreProc">var</span> right-a/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, right-index
+<span id="L349" class="LineNr">349 </span>    <span class="PreProc">var</span> right/<span class="Constant">ecx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *right-a
+<span id="L350" class="LineNr">350 </span>    <span class="PreProc">var</span> right-int/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy right
+<span id="L351" class="LineNr">351 </span>    <span class="PreProc">var</span> remainder/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L352" class="LineNr">352 </span>    <span class="Delimiter">{</span>
+<span id="L353" class="LineNr">353 </span>      <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L354" class="LineNr">354 </span>      dummy, remainder <span class="SpecialChar">&lt;-</span> <a href='314divide.subx.html#L3'>integer-divide</a> right-int, <span class="Constant">2</span>
+<span id="L355" class="LineNr">355 </span>    <span class="Delimiter">}</span>
+<span id="L356" class="LineNr">356 </span>    compare remainder, <span class="Constant">0</span>
+<span id="L357" class="LineNr">357 </span>    <span class="PreProc">break-if-=</span>
+<span id="L358" class="LineNr">358 </span>    <span class="muComment"># buf[n] = 0</span>
+<span id="L359" class="LineNr">359 </span>    <span class="PreProc">var</span> next-a/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, n
+<span id="L360" class="LineNr">360 </span>    <span class="PreProc">var</span> zero/<span class="Constant">edx</span>: byte <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L361" class="LineNr">361 </span>    copy-byte-to *next-a, zero
+<span id="L362" class="LineNr">362 </span>    <span class="muComment"># n++</span>
+<span id="L363" class="LineNr">363 </span>    n <span class="SpecialChar">&lt;-</span> increment
+<span id="L364" class="LineNr">364 </span>  <span class="Delimiter">}</span>
+<span id="L365" class="LineNr">365 </span>  <span class="muComment"># initialize the other</span>
+<span id="L366" class="LineNr">366 </span>  <span class="PreProc">var</span> delta/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L367" class="LineNr">367 </span>  <span class="PreProc">var</span> x/<span class="Constant">esi</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L368" class="LineNr">368 </span>  <span class="Delimiter">{</span>
+<span id="L369" class="LineNr">369 </span>    <span class="muComment"># if buf[0] &gt;= 2, break</span>
+<span id="L370" class="LineNr">370 </span>    <span class="PreProc">var</span> left/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, <span class="Constant">0</span>
+<span id="L371" class="LineNr">371 </span>    <span class="PreProc">var</span> src/<span class="Constant">ecx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *left
+<span id="L372" class="LineNr">372 </span>    compare src, <span class="Constant">2</span>
+<span id="L373" class="LineNr">373 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L374" class="LineNr">374 </span>    <span class="muComment"># delta, x = 1, buf[0]</span>
+<span id="L375" class="LineNr">375 </span>    delta <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L376" class="LineNr">376 </span>    x <span class="SpecialChar">&lt;-</span> copy src
+<span id="L377" class="LineNr">377 </span>    <span class="muComment"># n--</span>
+<span id="L378" class="LineNr">378 </span>    n <span class="SpecialChar">&lt;-</span> decrement
+<span id="L379" class="LineNr">379 </span>    <span class="muComment"># dp--</span>
+<span id="L380" class="LineNr">380 </span>    dp <span class="SpecialChar">&lt;-</span> decrement
+<span id="L381" class="LineNr">381 </span>  <span class="Delimiter">}</span>
+<span id="L382" class="LineNr">382 </span>  <span class="muComment"># loop</span>
+<span id="L383" class="LineNr">383 </span>  <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L384" class="LineNr">384 </span>  <span class="Delimiter">{</span>
+<span id="L385" class="LineNr">385 </span>    compare i, n
+<span id="L386" class="LineNr">386 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L387" class="LineNr">387 </span>    <span class="muComment"># x = x*10 + buf[i+delta]</span>
+<span id="L388" class="LineNr">388 </span>    <span class="Delimiter">{</span>
+<span id="L389" class="LineNr">389 </span>      <span class="PreProc">var</span> ten/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0xa</span>
+<span id="L390" class="LineNr">390 </span>      x <span class="SpecialChar">&lt;-</span> multiply ten
+<span id="L391" class="LineNr">391 </span>      <span class="PreProc">var</span> src-index/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy i
+<span id="L392" class="LineNr">392 </span>      src-index <span class="SpecialChar">&lt;-</span> add delta
+<span id="L393" class="LineNr">393 </span>      <span class="PreProc">var</span> src-a/<span class="Constant">edx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, src-index
+<span id="L394" class="LineNr">394 </span>      <span class="PreProc">var</span> src/<span class="Constant">edx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *src-a
+<span id="L395" class="LineNr">395 </span>      x <span class="SpecialChar">&lt;-</span> add src
+<span id="L396" class="LineNr">396 </span>    <span class="Delimiter">}</span>
+<span id="L397" class="LineNr">397 </span>    <span class="muComment"># buf[i], x = x/2, x%2</span>
+<span id="L398" class="LineNr">398 </span>    <span class="Delimiter">{</span>
+<span id="L399" class="LineNr">399 </span>      <span class="PreProc">var</span> quotient/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L400" class="LineNr">400 </span>      <span class="PreProc">var</span> remainder/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L401" class="LineNr">401 </span>      quotient, remainder <span class="SpecialChar">&lt;-</span> <a href='314divide.subx.html#L3'>integer-divide</a> x, <span class="Constant">2</span>
+<span id="L402" class="LineNr">402 </span>      x <span class="SpecialChar">&lt;-</span> copy remainder
+<span id="L403" class="LineNr">403 </span>      <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, i
+<span id="L404" class="LineNr">404 </span>      copy-byte-to *dest, quotient
+<span id="L405" class="LineNr">405 </span>    <span class="Delimiter">}</span>
+<span id="L406" class="LineNr">406 </span>    <span class="muComment">#</span>
+<span id="L407" class="LineNr">407 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L408" class="LineNr">408 </span>    <span class="PreProc">loop</span>
+<span id="L409" class="LineNr">409 </span>  <span class="Delimiter">}</span>
+<span id="L410" class="LineNr">410 </span>  <span class="PreProc">return</span> n, dp
+<span id="L411" class="LineNr">411 </span><span class="Delimiter">}</span>
+<span id="L412" class="LineNr">412 </span>
+<span id="L413" class="LineNr">413 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L413'>render-float-buffer</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), _buf: (addr array byte), n: int, dp: int, precision: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L414" class="LineNr">414 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _buf
+<span id="L415" class="LineNr">415 </span>  <span class="Delimiter">{</span>
+<span id="L416" class="LineNr">416 </span>    compare dp, <span class="Constant">0</span>
+<span id="L417" class="LineNr">417 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L418" class="LineNr">418 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L465'>render-float-buffer-in-scientific-notation</a> <a href='500text-screen.mu.html#L9'>screen</a>, buf, n, dp, precision, x, y, color, background-color
+<span id="L419" class="LineNr">419 </span>    <span class="PreProc">return</span> new-x
+<span id="L420" class="LineNr">420 </span>  <span class="Delimiter">}</span>
+<span id="L421" class="LineNr">421 </span>  <span class="Delimiter">{</span>
+<span id="L422" class="LineNr">422 </span>    <span class="PreProc">var</span> dp2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy dp
+<span id="L423" class="LineNr">423 </span>    compare dp2, precision
+<span id="L424" class="LineNr">424 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L425" class="LineNr">425 </span>    <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L465'>render-float-buffer-in-scientific-notation</a> <a href='500text-screen.mu.html#L9'>screen</a>, buf, n, dp, precision, x, y, color, background-color
+<span id="L426" class="LineNr">426 </span>    <span class="PreProc">return</span> new-x
+<span id="L427" class="LineNr">427 </span>  <span class="Delimiter">}</span>
+<span id="L428" class="LineNr">428 </span>  <span class="Delimiter">{</span>
+<span id="L429" class="LineNr">429 </span>    compare dp, <span class="Constant">0</span>
+<span id="L430" class="LineNr">430 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L431" class="LineNr">431 </span>    <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x30</span>/<span class="Constant">0</span>, x, y, color, background-color
+<span id="L432" class="LineNr">432 </span>    increment x
+<span id="L433" class="LineNr">433 </span>  <span class="Delimiter">}</span>
+<span id="L434" class="LineNr">434 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L435" class="LineNr">435 </span>  <span class="muComment"># bounds = min(n, dp+3)</span>
+<span id="L436" class="LineNr">436 </span>  <span class="PreProc">var</span> limit/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy dp
+<span id="L437" class="LineNr">437 </span>  limit <span class="SpecialChar">&lt;-</span> add <span class="Constant">3</span>
+<span id="L438" class="LineNr">438 </span>  <span class="Delimiter">{</span>
+<span id="L439" class="LineNr">439 </span>    compare limit, n
+<span id="L440" class="LineNr">440 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L441" class="LineNr">441 </span>    limit <span class="SpecialChar">&lt;-</span> copy n
+<span id="L442" class="LineNr">442 </span>  <span class="Delimiter">}</span>
+<span id="L443" class="LineNr">443 </span>  <span class="Delimiter">{</span>
+<span id="L444" class="LineNr">444 </span>    compare i, limit
+<span id="L445" class="LineNr">445 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L446" class="LineNr">446 </span>    <span class="muComment"># print '.' if necessary</span>
+<span id="L447" class="LineNr">447 </span>    compare i, dp
+<span id="L448" class="LineNr">448 </span>    <span class="Delimiter">{</span>
+<span id="L449" class="LineNr">449 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L450" class="LineNr">450 </span>      <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2e</span>/decimal-point, x, y, color, background-color
+<span id="L451" class="LineNr">451 </span>      increment x
+<span id="L452" class="LineNr">452 </span>    <span class="Delimiter">}</span>
+<span id="L453" class="LineNr">453 </span>    <span class="PreProc">var</span> curr-a/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, i
+<span id="L454" class="LineNr">454 </span>    <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *curr-a
+<span id="L455" class="LineNr">455 </span>    curr <span class="SpecialChar">&lt;-</span> add <span class="Constant">0x30</span>/<span class="Constant">0</span>
+<span id="L456" class="LineNr">456 </span>    <span class="PreProc">var</span> curr-grapheme/<span class="Constant">ecx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy curr
+<span id="L457" class="LineNr">457 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, curr-grapheme, x, y, color, background-color
+<span id="L458" class="LineNr">458 </span>    increment x
+<span id="L459" class="LineNr">459 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L460" class="LineNr">460 </span>    <span class="PreProc">loop</span>
+<span id="L461" class="LineNr">461 </span>  <span class="Delimiter">}</span>
+<span id="L462" class="LineNr">462 </span>  <span class="PreProc">return</span> x
+<span id="L463" class="LineNr">463 </span><span class="Delimiter">}</span>
+<span id="L464" class="LineNr">464 </span>
+<span id="L465" class="LineNr">465 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L465'>render-float-buffer-in-scientific-notation</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), _buf: (addr array byte), n: int, dp: int, precision: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L466" class="LineNr">466 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> copy _buf
+<span id="L467" class="LineNr">467 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L468" class="LineNr">468 </span>  <span class="Delimiter">{</span>
+<span id="L469" class="LineNr">469 </span>    compare i, n
+<span id="L470" class="LineNr">470 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L471" class="LineNr">471 </span>    compare i, precision
+<span id="L472" class="LineNr">472 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L473" class="LineNr">473 </span>    compare i, <span class="Constant">1</span>
+<span id="L474" class="LineNr">474 </span>    <span class="Delimiter">{</span>
+<span id="L475" class="LineNr">475 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L476" class="LineNr">476 </span>      <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x2e</span>/decimal-point, x, y, color, background-color
+<span id="L477" class="LineNr">477 </span>      increment x
+<span id="L478" class="LineNr">478 </span>    <span class="Delimiter">}</span>
+<span id="L479" class="LineNr">479 </span>    <span class="PreProc">var</span> curr-a/<span class="Constant">ecx</span>: (addr byte) <span class="SpecialChar">&lt;-</span> index buf, i
+<span id="L480" class="LineNr">480 </span>    <span class="PreProc">var</span> curr/<span class="Constant">ecx</span>: byte <span class="SpecialChar">&lt;-</span> copy-byte *curr-a
+<span id="L481" class="LineNr">481 </span>    curr <span class="SpecialChar">&lt;-</span> add <span class="Constant">0x30</span>/<span class="Constant">0</span>
+<span id="L482" class="LineNr">482 </span>    <span class="PreProc">var</span> curr-grapheme/<span class="Constant">ecx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy curr
+<span id="L483" class="LineNr">483 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, curr-grapheme, x, y, color, background-color
+<span id="L484" class="LineNr">484 </span>    increment x
+<span id="L485" class="LineNr">485 </span>    <span class="muComment">#</span>
+<span id="L486" class="LineNr">486 </span>    i <span class="SpecialChar">&lt;-</span> increment
+<span id="L487" class="LineNr">487 </span>    <span class="PreProc">loop</span>
+<span id="L488" class="LineNr">488 </span>  <span class="Delimiter">}</span>
+<span id="L489" class="LineNr">489 </span>  <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x65</span>/e, x, y, color, background-color
+<span id="L490" class="LineNr">490 </span>  increment x
+<span id="L491" class="LineNr">491 </span>  decrement dp
+<span id="L492" class="LineNr">492 </span>  <span class="PreProc">var</span> new-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L493" class="LineNr">493 </span>  <span class="PreProc">var</span> new-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L494" class="LineNr">494 </span>  new-x, new-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L357'>draw-int32-decimal-wrapping-right-then-down-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, dp, x, y, color, background-color
+<span id="L495" class="LineNr">495 </span>  <span class="PreProc">return</span> new-x
+<span id="L496" class="LineNr">496 </span><span class="Delimiter">}</span>
+<span id="L497" class="LineNr">497 </span>
+<span id="L498" class="LineNr">498 </span><span class="muComment"># follows the structure of render-float-decimal</span>
+<span id="L499" class="LineNr">499 </span><span class="muComment"># 'precision' controls the maximum width past which we resort to scientific notation</span>
+<span id="L500" class="LineNr">500 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='412render-float-decimal.mu.html#L500'>float-size</a></span> in: float, precision: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L501" class="LineNr">501 </span>  <span class="muComment"># - special names</span>
+<span id="L502" class="LineNr">502 </span>  <span class="PreProc">var</span> bits/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> reinterpret in
+<span id="L503" class="LineNr">503 </span>  compare bits, <span class="Constant">0</span>
+<span id="L504" class="LineNr">504 </span>  <span class="Delimiter">{</span>
+<span id="L505" class="LineNr">505 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L506" class="LineNr">506 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>  <span class="muComment"># for &quot;0&quot;</span>
+<span id="L507" class="LineNr">507 </span>  <span class="Delimiter">}</span>
+<span id="L508" class="LineNr">508 </span>  compare bits, <span class="Constant">0x80000000</span>
+<span id="L509" class="LineNr">509 </span>  <span class="Delimiter">{</span>
+<span id="L510" class="LineNr">510 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L511" class="LineNr">511 </span>    <span class="PreProc">return</span> <span class="Constant">2</span>  <span class="muComment"># for &quot;-0&quot;</span>
+<span id="L512" class="LineNr">512 </span>  <span class="Delimiter">}</span>
+<span id="L513" class="LineNr">513 </span>  compare bits, <span class="Constant">0x7f800000</span>
+<span id="L514" class="LineNr">514 </span>  <span class="Delimiter">{</span>
+<span id="L515" class="LineNr">515 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L516" class="LineNr">516 </span>    <span class="PreProc">return</span> <span class="Constant">3</span>  <span class="muComment"># for &quot;Inf&quot;</span>
+<span id="L517" class="LineNr">517 </span>  <span class="Delimiter">}</span>
+<span id="L518" class="LineNr">518 </span>  compare bits, <span class="Constant">0xff800000</span>
+<span id="L519" class="LineNr">519 </span>  <span class="Delimiter">{</span>
+<span id="L520" class="LineNr">520 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L521" class="LineNr">521 </span>    <span class="PreProc">return</span> <span class="Constant">4</span>  <span class="muComment"># for &quot;-Inf&quot;</span>
+<span id="L522" class="LineNr">522 </span>  <span class="Delimiter">}</span>
+<span id="L523" class="LineNr">523 </span>  <span class="PreProc">var</span> exponent/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy bits
+<span id="L524" class="LineNr">524 </span>  exponent <span class="SpecialChar">&lt;-</span> shift-right <span class="Constant">0x17</span>  <span class="muComment"># 23 bits of mantissa</span>
+<span id="L525" class="LineNr">525 </span>  exponent <span class="SpecialChar">&lt;-</span> and <span class="Constant">0xff</span>
+<span id="L526" class="LineNr">526 </span>  exponent <span class="SpecialChar">&lt;-</span> subtract <span class="Constant">0x7f</span>
+<span id="L527" class="LineNr">527 </span>  compare exponent, <span class="Constant">0x80</span>
+<span id="L528" class="LineNr">528 </span>  <span class="Delimiter">{</span>
+<span id="L529" class="LineNr">529 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L530" class="LineNr">530 </span>    <span class="PreProc">return</span> <span class="Constant">3</span>  <span class="muComment"># for &quot;NaN&quot;</span>
+<span id="L531" class="LineNr">531 </span>  <span class="Delimiter">}</span>
+<span id="L532" class="LineNr">532 </span>  <span class="muComment"># - regular numbers</span>
+<span id="L533" class="LineNr">533 </span>  <span class="muComment"># v = 1.mantissa (in base 2) &lt;&lt; 0x17</span>
+<span id="L534" class="LineNr">534 </span>  <span class="PreProc">var</span> v/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy bits
+<span id="L535" class="LineNr">535 </span>  v <span class="SpecialChar">&lt;-</span> and <span class="Constant">0x7fffff</span>
+<span id="L536" class="LineNr">536 </span>  v <span class="SpecialChar">&lt;-</span> or <span class="Constant">0x00800000</span>  <span class="muComment"># insert implicit 1</span>
+<span id="L537" class="LineNr">537 </span>  <span class="muComment"># e = exponent - 0x17</span>
+<span id="L538" class="LineNr">538 </span>  <span class="PreProc">var</span> e/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy exponent
+<span id="L539" class="LineNr">539 </span>  e <span class="SpecialChar">&lt;-</span> subtract <span class="Constant">0x17</span>  <span class="muComment"># move decimal place from before mantissa to after</span>
+<span id="L540" class="LineNr">540 </span>
+<span id="L541" class="LineNr">541 </span>  <span class="muComment"># initialize buffer with decimal representation of v</span>
+<span id="L542" class="LineNr">542 </span>  <span class="PreProc">var</span> buf-storage: (array byte <span class="Constant">0x7f</span>)
+<span id="L543" class="LineNr">543 </span>  <span class="PreProc">var</span> buf/<span class="Constant">edi</span>: (addr array byte) <span class="SpecialChar">&lt;-</span> address buf-storage
+<span id="L544" class="LineNr">544 </span>  <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L249'>decimal-digits</a> v, buf
+<span id="L545" class="LineNr">545 </span>  <a href='412render-float-decimal.mu.html#L266'>reverse-digits</a> buf, n
+<span id="L546" class="LineNr">546 </span>
+<span id="L547" class="LineNr">547 </span>  <span class="muComment"># loop if e &gt; 0</span>
+<span id="L548" class="LineNr">548 </span>  <span class="Delimiter">{</span>
+<span id="L549" class="LineNr">549 </span>    compare e, <span class="Constant">0</span>
+<span id="L550" class="LineNr">550 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L551" class="LineNr">551 </span>    n <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L288'>double-array-of-decimal-digits</a> buf, n
+<span id="L552" class="LineNr">552 </span>    e <span class="SpecialChar">&lt;-</span> decrement
+<span id="L553" class="LineNr">553 </span>    <span class="PreProc">loop</span>
+<span id="L554" class="LineNr">554 </span>  <span class="Delimiter">}</span>
+<span id="L555" class="LineNr">555 </span>
+<span id="L556" class="LineNr">556 </span>  <span class="PreProc">var</span> dp/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy n
+<span id="L557" class="LineNr">557 </span>
+<span id="L558" class="LineNr">558 </span>  <span class="muComment"># loop if e &lt; 0</span>
+<span id="L559" class="LineNr">559 </span>  <span class="Delimiter">{</span>
+<span id="L560" class="LineNr">560 </span>    compare e, <span class="Constant">0</span>
+<span id="L561" class="LineNr">561 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L562" class="LineNr">562 </span>    n, dp <span class="SpecialChar">&lt;-</span> <a href='412render-float-decimal.mu.html#L339'>halve-array-of-decimal-digits</a> buf, n, dp
+<span id="L563" class="LineNr">563 </span>    e <span class="SpecialChar">&lt;-</span> increment
+<span id="L564" class="LineNr">564 </span>    <span class="PreProc">loop</span>
+<span id="L565" class="LineNr">565 </span>  <span class="Delimiter">}</span>
+<span id="L566" class="LineNr">566 </span>
+<span id="L567" class="LineNr">567 </span>  compare dp, <span class="Constant">0</span>
+<span id="L568" class="LineNr">568 </span>  <span class="Delimiter">{</span>
+<span id="L569" class="LineNr">569 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L570" class="LineNr">570 </span>    <span class="PreProc">return</span> <span class="Constant">8</span>  <span class="muComment"># hacky for scientific notation</span>
+<span id="L571" class="LineNr">571 </span>  <span class="Delimiter">}</span>
+<span id="L572" class="LineNr">572 </span>  <span class="Delimiter">{</span>
+<span id="L573" class="LineNr">573 </span>    <span class="PreProc">var</span> dp2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy dp
+<span id="L574" class="LineNr">574 </span>    compare dp2, precision
+<span id="L575" class="LineNr">575 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L576" class="LineNr">576 </span>    <span class="PreProc">return</span> <span class="Constant">8</span>  <span class="muComment"># hacky for scientific notation</span>
+<span id="L577" class="LineNr">577 </span>  <span class="Delimiter">}</span>
+<span id="L578" class="LineNr">578 </span>
+<span id="L579" class="LineNr">579 </span>  <span class="muComment"># result = min(n, dp+3)</span>
+<span id="L580" class="LineNr">580 </span>  <span class="PreProc">var</span> result/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy dp
+<span id="L581" class="LineNr">581 </span>  result <span class="SpecialChar">&lt;-</span> add <span class="Constant">3</span>
+<span id="L582" class="LineNr">582 </span>  <span class="Delimiter">{</span>
+<span id="L583" class="LineNr">583 </span>    compare result, n
+<span id="L584" class="LineNr">584 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L585" class="LineNr">585 </span>    result <span class="SpecialChar">&lt;-</span> copy n
+<span id="L586" class="LineNr">586 </span>  <span class="Delimiter">}</span>
+<span id="L587" class="LineNr">587 </span>
+<span id="L588" class="LineNr">588 </span>  <span class="muComment"># account for decimal point</span>
+<span id="L589" class="LineNr">589 </span>  compare dp, n
+<span id="L590" class="LineNr">590 </span>  <span class="Delimiter">{</span>
+<span id="L591" class="LineNr">591 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L592" class="LineNr">592 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L593" class="LineNr">593 </span>  <span class="Delimiter">}</span>
+<span id="L594" class="LineNr">594 </span>
+<span id="L595" class="LineNr">595 </span>  <span class="muComment"># account for sign</span>
+<span id="L596" class="LineNr">596 </span>  <span class="PreProc">var</span> sign/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> reinterpret in
+<span id="L597" class="LineNr">597 </span>  sign <span class="SpecialChar">&lt;-</span> shift-right <span class="Constant">0x1f</span>
+<span id="L598" class="LineNr">598 </span>  <span class="Delimiter">{</span>
+<span id="L599" class="LineNr">599 </span>    compare sign, <span class="Constant">1</span>
+<span id="L600" class="LineNr">600 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L601" class="LineNr">601 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L602" class="LineNr">602 </span>  <span class="Delimiter">}</span>
+<span id="L603" class="LineNr">603 </span>  <span class="PreProc">return</span> result
+<span id="L604" class="LineNr">604 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/500text-screen.mu.html b/html/baremetal/500text-screen.mu.html
index 0f28c86d..04bd8548 100644
--- a/html/baremetal/500text-screen.mu.html
+++ b/html/baremetal/500text-screen.mu.html
@@ -75,64 +75,64 @@ if ('onhashchange' in window) {
 <span id="L17" class="LineNr"> 17 </span><span class="PreProc">type</span> <a href='500text-screen.mu.html#L17'>screen-cell</a> <span class="Delimiter">{</span>
 <span id="L18" class="LineNr"> 18 </span>  data: grapheme
 <span id="L19" class="LineNr"> 19 </span>  color: int
-<span id="L20" class="LineNr"> 20 </span><span class="Delimiter">}</span>
-<span id="L21" class="LineNr"> 21 </span>
-<span id="L22" class="LineNr"> 22 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L22'>initialize-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), width: int, height: int <span class="Delimiter">{</span>
-<span id="L23" class="LineNr"> 23 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L24" class="LineNr"> 24 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L25" class="LineNr"> 25 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L26" class="LineNr"> 26 </span>  <span class="muComment"># screen-&gt;width = width</span>
-<span id="L27" class="LineNr"> 27 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, width
-<span id="L28" class="LineNr"> 28 </span>  tmp <span class="SpecialChar">&lt;-</span> copy width
-<span id="L29" class="LineNr"> 29 </span>  copy-to *dest, tmp
-<span id="L30" class="LineNr"> 30 </span>  <span class="muComment"># screen-&gt;height = height</span>
-<span id="L31" class="LineNr"> 31 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, height
-<span id="L32" class="LineNr"> 32 </span>  tmp <span class="SpecialChar">&lt;-</span> copy height
-<span id="L33" class="LineNr"> 33 </span>  copy-to *dest, tmp
-<span id="L34" class="LineNr"> 34 </span>  <span class="muComment"># screen-&gt;data = new screen-cell[width*height]</span>
-<span id="L35" class="LineNr"> 35 </span>  <span class="Delimiter">{</span>
-<span id="L36" class="LineNr"> 36 </span>    <span class="PreProc">var</span> data-addr/<span class="Constant">edi</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
-<span id="L37" class="LineNr"> 37 </span>    tmp <span class="SpecialChar">&lt;-</span> multiply width
-<span id="L38" class="LineNr"> 38 </span>    populate data-addr, tmp
-<span id="L39" class="LineNr"> 39 </span>  <span class="Delimiter">}</span>
-<span id="L40" class="LineNr"> 40 </span>  <span class="muComment"># screen-&gt;cursor-x = 0</span>
-<span id="L41" class="LineNr"> 41 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-x
-<span id="L42" class="LineNr"> 42 </span>  copy-to *dest, <span class="Constant">0</span>
-<span id="L43" class="LineNr"> 43 </span>  <span class="muComment"># screen-&gt;cursor-y = 0</span>
-<span id="L44" class="LineNr"> 44 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-y
-<span id="L45" class="LineNr"> 45 </span>  copy-to *dest, <span class="Constant">0</span>
-<span id="L46" class="LineNr"> 46 </span><span class="Delimiter">}</span>
-<span id="L47" class="LineNr"> 47 </span>
-<span id="L48" class="LineNr"> 48 </span><span class="muComment"># in graphemes</span>
-<span id="L49" class="LineNr"> 49 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L49'>screen-size</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L52" class="LineNr"> 52 </span>  compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
-<span id="L53" class="LineNr"> 53 </span>  <span class="Delimiter">{</span>
-<span id="L54" class="LineNr"> 54 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L55" class="LineNr"> 55 </span>    <span class="PreProc">return</span> <span class="Constant">0x80</span>, <span class="Constant">0x30</span>  <span class="muComment"># 128x48</span>
-<span id="L56" class="LineNr"> 56 </span>  <span class="Delimiter">}</span>
-<span id="L57" class="LineNr"> 57 </span>  <span class="muComment"># fake screen</span>
-<span id="L58" class="LineNr"> 58 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L59" class="LineNr"> 59 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, width
-<span id="L60" class="LineNr"> 60 </span>  width <span class="SpecialChar">&lt;-</span> copy *tmp
-<span id="L61" class="LineNr"> 61 </span>  tmp <span class="SpecialChar">&lt;-</span> get screen-addr, height
-<span id="L62" class="LineNr"> 62 </span>  height <span class="SpecialChar">&lt;-</span> copy *tmp
-<span id="L63" class="LineNr"> 63 </span>  <span class="PreProc">return</span> width, height
-<span id="L64" class="LineNr"> 64 </span><span class="Delimiter">}</span>
-<span id="L65" class="LineNr"> 65 </span>
-<span id="L66" class="LineNr"> 66 </span><span class="muComment"># testable screen primitive</span>
-<span id="L67" class="LineNr"> 67 </span><span class="muComment"># background color isn't configurable yet</span>
-<span id="L68" class="LineNr"> 68 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L68'>draw-grapheme</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), g: grapheme, x: int, y: int, color: int <span class="Delimiter">{</span>
+<span id="L20" class="LineNr"> 20 </span>  background-color: int
+<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">}</span>
+<span id="L22" class="LineNr"> 22 </span>
+<span id="L23" class="LineNr"> 23 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L23'>initialize-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), width: int, height: int <span class="Delimiter">{</span>
+<span id="L24" class="LineNr"> 24 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L25" class="LineNr"> 25 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L26" class="LineNr"> 26 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L27" class="LineNr"> 27 </span>  <span class="muComment"># screen-&gt;width = width</span>
+<span id="L28" class="LineNr"> 28 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, width
+<span id="L29" class="LineNr"> 29 </span>  tmp <span class="SpecialChar">&lt;-</span> copy width
+<span id="L30" class="LineNr"> 30 </span>  copy-to *dest, tmp
+<span id="L31" class="LineNr"> 31 </span>  <span class="muComment"># screen-&gt;height = height</span>
+<span id="L32" class="LineNr"> 32 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, height
+<span id="L33" class="LineNr"> 33 </span>  tmp <span class="SpecialChar">&lt;-</span> copy height
+<span id="L34" class="LineNr"> 34 </span>  copy-to *dest, tmp
+<span id="L35" class="LineNr"> 35 </span>  <span class="muComment"># screen-&gt;data = new screen-cell[width*height]</span>
+<span id="L36" class="LineNr"> 36 </span>  <span class="Delimiter">{</span>
+<span id="L37" class="LineNr"> 37 </span>    <span class="PreProc">var</span> data-addr/<span class="Constant">edi</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
+<span id="L38" class="LineNr"> 38 </span>    tmp <span class="SpecialChar">&lt;-</span> multiply width
+<span id="L39" class="LineNr"> 39 </span>    populate data-addr, tmp
+<span id="L40" class="LineNr"> 40 </span>  <span class="Delimiter">}</span>
+<span id="L41" class="LineNr"> 41 </span>  <span class="muComment"># screen-&gt;cursor-x = 0</span>
+<span id="L42" class="LineNr"> 42 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-x
+<span id="L43" class="LineNr"> 43 </span>  copy-to *dest, <span class="Constant">0</span>
+<span id="L44" class="LineNr"> 44 </span>  <span class="muComment"># screen-&gt;cursor-y = 0</span>
+<span id="L45" class="LineNr"> 45 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-y
+<span id="L46" class="LineNr"> 46 </span>  copy-to *dest, <span class="Constant">0</span>
+<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span>
+<span id="L48" class="LineNr"> 48 </span>
+<span id="L49" class="LineNr"> 49 </span><span class="muComment"># in graphemes</span>
+<span id="L50" class="LineNr"> 50 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L50'>screen-size</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L53" class="LineNr"> 53 </span>  compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
+<span id="L54" class="LineNr"> 54 </span>  <span class="Delimiter">{</span>
+<span id="L55" class="LineNr"> 55 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L56" class="LineNr"> 56 </span>    <span class="PreProc">return</span> <span class="Constant">0x80</span>/<span class="Constant">128</span>, <span class="Constant">0x30</span>/<span class="Constant">48</span>
+<span id="L57" class="LineNr"> 57 </span>  <span class="Delimiter">}</span>
+<span id="L58" class="LineNr"> 58 </span>  <span class="muComment"># fake screen</span>
+<span id="L59" class="LineNr"> 59 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L60" class="LineNr"> 60 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, width
+<span id="L61" class="LineNr"> 61 </span>  width <span class="SpecialChar">&lt;-</span> copy *tmp
+<span id="L62" class="LineNr"> 62 </span>  tmp <span class="SpecialChar">&lt;-</span> get screen-addr, height
+<span id="L63" class="LineNr"> 63 </span>  height <span class="SpecialChar">&lt;-</span> copy *tmp
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">return</span> width, height
+<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">}</span>
+<span id="L66" class="LineNr"> 66 </span>
+<span id="L67" class="LineNr"> 67 </span><span class="muComment"># testable screen primitive</span>
+<span id="L68" class="LineNr"> 68 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L68'>draw-grapheme</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), g: grapheme, x: int, y: int, color: int, background-color: int <span class="Delimiter">{</span>
 <span id="L69" class="LineNr"> 69 </span>  <span class="Delimiter">{</span>
 <span id="L70" class="LineNr"> 70 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
 <span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L72" class="LineNr"> 72 </span>    <a href='103grapheme.subx.html#L15'>draw-grapheme-on-real-screen</a> g, x, y, color, <span class="Constant">0</span>
+<span id="L72" class="LineNr"> 72 </span>    <a href='103grapheme.subx.html#L17'>draw-grapheme-on-real-screen</a> g, x, y, color, background-color
 <span id="L73" class="LineNr"> 73 </span>    <span class="PreProc">return</span>
 <span id="L74" class="LineNr"> 74 </span>  <span class="Delimiter">}</span>
 <span id="L75" class="LineNr"> 75 </span>  <span class="muComment"># fake screen</span>
 <span id="L76" class="LineNr"> 76 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L77" class="LineNr"> 77 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L90'>screen-cell-index</a> screen-addr, x, y
+<span id="L77" class="LineNr"> 77 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> screen-addr, x, y
 <span id="L78" class="LineNr"> 78 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
 <span id="L79" class="LineNr"> 79 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
 <span id="L80" class="LineNr"> 80 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data, idx
@@ -141,183 +141,219 @@ if ('onhashchange' in window) {
 <span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> g2/<span class="Constant">edx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy g
 <span id="L84" class="LineNr"> 84 </span>  copy-to *dest-grapheme, g2
 <span id="L85" class="LineNr"> 85 </span>  <span class="PreProc">var</span> dest-color/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get dest-cell, color
-<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> color2/<span class="Constant">edx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy color
-<span id="L87" class="LineNr"> 87 </span>  copy-to *dest-color, color2
-<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">}</span>
-<span id="L89" class="LineNr"> 89 </span>
-<span id="L90" class="LineNr"> 90 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L90'>screen-cell-index</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L91" class="LineNr"> 91 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L92" class="LineNr"> 92 </span>  <span class="PreProc">var</span> height-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get <a href='500text-screen.mu.html#L9'>screen</a>, height
-<span id="L93" class="LineNr"> 93 </span>  <span class="PreProc">var</span> result/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
-<span id="L94" class="LineNr"> 94 </span>  result <span class="SpecialChar">&lt;-</span> multiply *height-addr
-<span id="L95" class="LineNr"> 95 </span>  result <span class="SpecialChar">&lt;-</span> add x
-<span id="L96" class="LineNr"> 96 </span>  <span class="PreProc">return</span> result
+<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> src-color/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy color
+<span id="L87" class="LineNr"> 87 </span>  copy-to *dest-color, src-color
+<span id="L88" class="LineNr"> 88 </span>  dest-color <span class="SpecialChar">&lt;-</span> get dest-cell, background-color
+<span id="L89" class="LineNr"> 89 </span>  src-color <span class="SpecialChar">&lt;-</span> copy background-color
+<span id="L90" class="LineNr"> 90 </span>  copy-to *dest-color, src-color
+<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span>
+<span id="L92" class="LineNr"> 92 </span>
+<span id="L93" class="LineNr"> 93 </span><span class="muComment"># we can't really render non-ASCII yet, but when we do we'll be ready</span>
+<span id="L94" class="LineNr"> 94 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L94'>draw-code-point</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), c: code-point, x: int, y: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy c
+<span id="L96" class="LineNr"> 96 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, x, y, color, background-color
 <span id="L97" class="LineNr"> 97 </span><span class="Delimiter">}</span>
 <span id="L98" class="LineNr"> 98 </span>
-<span id="L99" class="LineNr"> 99 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L99'>cursor-position</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L100" class="LineNr">100 </span>  <span class="Delimiter">{</span>
-<span id="L101" class="LineNr">101 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
-<span id="L102" class="LineNr">102 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L103" class="LineNr">103 </span>    <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L104" class="LineNr">104 </span>    <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L105" class="LineNr">105 </span>    x, y <span class="SpecialChar">&lt;-</span> <a href='103grapheme.subx.html#L94'>cursor-position-on-real-screen</a>
-<span id="L106" class="LineNr">106 </span>    <span class="PreProc">return</span> x, y
-<span id="L107" class="LineNr">107 </span>  <span class="Delimiter">}</span>
-<span id="L108" class="LineNr">108 </span>  <span class="muComment"># fake screen</span>
-<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L110" class="LineNr">110 </span>  <span class="PreProc">var</span> cursor-x-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-x
-<span id="L111" class="LineNr">111 </span>  <span class="PreProc">var</span> cursor-y-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-y
-<span id="L112" class="LineNr">112 </span>  <span class="PreProc">return</span> *cursor-x-addr, *cursor-y-addr
-<span id="L113" class="LineNr">113 </span><span class="Delimiter">}</span>
-<span id="L114" class="LineNr">114 </span>
-<span id="L115" class="LineNr">115 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L115'>set-cursor-position</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int <span class="Delimiter">{</span>
-<span id="L116" class="LineNr">116 </span>  <span class="Delimiter">{</span>
-<span id="L117" class="LineNr">117 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
-<span id="L118" class="LineNr">118 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L119" class="LineNr">119 </span>    <a href='103grapheme.subx.html#L107'>set-cursor-position-on-real-screen</a> x, y
-<span id="L120" class="LineNr">120 </span>    <span class="PreProc">return</span>
-<span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
-<span id="L122" class="LineNr">122 </span>  <span class="muComment"># fake screen</span>
-<span id="L123" class="LineNr">123 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L124" class="LineNr">124 </span>  <span class="muComment"># ignore x &lt; 0</span>
-<span id="L125" class="LineNr">125 </span>  <span class="Delimiter">{</span>
-<span id="L126" class="LineNr">126 </span>    compare x, <span class="Constant">0</span>
-<span id="L127" class="LineNr">127 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L128" class="LineNr">128 </span>    <span class="PreProc">return</span>
-<span id="L129" class="LineNr">129 </span>  <span class="Delimiter">}</span>
-<span id="L130" class="LineNr">130 </span>  <span class="muComment"># ignore x &gt;= width</span>
-<span id="L131" class="LineNr">131 </span>  <span class="Delimiter">{</span>
-<span id="L132" class="LineNr">132 </span>    <span class="PreProc">var</span> width-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, width
-<span id="L133" class="LineNr">133 </span>    <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *width-addr
-<span id="L134" class="LineNr">134 </span>    compare x, width
-<span id="L135" class="LineNr">135 </span>    <span class="PreProc">break-if-&lt;=</span>
-<span id="L136" class="LineNr">136 </span>    <span class="PreProc">return</span>
-<span id="L137" class="LineNr">137 </span>  <span class="Delimiter">}</span>
-<span id="L138" class="LineNr">138 </span>  <span class="muComment"># ignore y &lt; 0</span>
-<span id="L139" class="LineNr">139 </span>  <span class="Delimiter">{</span>
-<span id="L140" class="LineNr">140 </span>    compare y, <span class="Constant">0</span>
-<span id="L141" class="LineNr">141 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L142" class="LineNr">142 </span>    <span class="PreProc">return</span>
-<span id="L143" class="LineNr">143 </span>  <span class="Delimiter">}</span>
-<span id="L144" class="LineNr">144 </span>  <span class="muComment"># ignore y &gt;= height</span>
-<span id="L145" class="LineNr">145 </span>  <span class="Delimiter">{</span>
-<span id="L146" class="LineNr">146 </span>    <span class="PreProc">var</span> height-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, height
-<span id="L147" class="LineNr">147 </span>    <span class="PreProc">var</span> height/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *height-addr
-<span id="L148" class="LineNr">148 </span>    compare y, height
-<span id="L149" class="LineNr">149 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L150" class="LineNr">150 </span>    <span class="PreProc">return</span>
-<span id="L151" class="LineNr">151 </span>  <span class="Delimiter">}</span>
-<span id="L152" class="LineNr">152 </span>  <span class="muComment"># screen-&gt;cursor-x = x</span>
-<span id="L153" class="LineNr">153 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-x
-<span id="L154" class="LineNr">154 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy x
-<span id="L155" class="LineNr">155 </span>  copy-to *dest, src
-<span id="L156" class="LineNr">156 </span>  <span class="muComment"># screen-&gt;cursor-y = y</span>
-<span id="L157" class="LineNr">157 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-y
-<span id="L158" class="LineNr">158 </span>  src <span class="SpecialChar">&lt;-</span> copy y
-<span id="L159" class="LineNr">159 </span>  copy-to *dest, src
-<span id="L160" class="LineNr">160 </span><span class="Delimiter">}</span>
-<span id="L161" class="LineNr">161 </span>
-<span id="L162" class="LineNr">162 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L162'>show-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), g: grapheme <span class="Delimiter">{</span>
+<span id="L99" class="LineNr"> 99 </span><span class="muComment"># not really needed for a real screen, though it shouldn't do any harm</span>
+<span id="L100" class="LineNr">100 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L100'>screen-cell-index</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L101" class="LineNr">101 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L102" class="LineNr">102 </span>  <span class="muComment"># only one bounds check isn't automatically handled</span>
+<span id="L103" class="LineNr">103 </span>  <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>    <span class="PreProc">var</span> xmax/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get <a href='500text-screen.mu.html#L9'>screen</a>, width
+<span id="L105" class="LineNr">105 </span>    <span class="PreProc">var</span> xcurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L106" class="LineNr">106 </span>    compare xcurr, *xmax
+<span id="L107" class="LineNr">107 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L108" class="LineNr">108 </span>    <a href='501draw-text.mu.html#L519'>abort</a> <span class="Constant">&quot;tried to print out of <a href='500text-screen.mu.html#L9'>screen</a> bounds&quot;</span>
+<span id="L109" class="LineNr">109 </span>  <span class="Delimiter">}</span>
+<span id="L110" class="LineNr">110 </span>  <span class="PreProc">var</span> height-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get <a href='500text-screen.mu.html#L9'>screen</a>, height
+<span id="L111" class="LineNr">111 </span>  <span class="PreProc">var</span> result/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
+<span id="L112" class="LineNr">112 </span>  result <span class="SpecialChar">&lt;-</span> multiply *height-addr
+<span id="L113" class="LineNr">113 </span>  result <span class="SpecialChar">&lt;-</span> add x
+<span id="L114" class="LineNr">114 </span>  <span class="PreProc">return</span> result
+<span id="L115" class="LineNr">115 </span><span class="Delimiter">}</span>
+<span id="L116" class="LineNr">116 </span>
+<span id="L117" class="LineNr">117 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L117'>cursor-position</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L118" class="LineNr">118 </span>  <span class="Delimiter">{</span>
+<span id="L119" class="LineNr">119 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
+<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/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L122" class="LineNr">122 </span>    <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L123" class="LineNr">123 </span>    x, y <span class="SpecialChar">&lt;-</span> <a href='103grapheme.subx.html#L96'>cursor-position-on-real-screen</a>
+<span id="L124" class="LineNr">124 </span>    <span class="PreProc">return</span> x, y
+<span id="L125" class="LineNr">125 </span>  <span class="Delimiter">}</span>
+<span id="L126" class="LineNr">126 </span>  <span class="muComment"># fake screen</span>
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> cursor-x-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-x
+<span id="L129" class="LineNr">129 </span>  <span class="PreProc">var</span> cursor-y-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-y
+<span id="L130" class="LineNr">130 </span>  <span class="PreProc">return</span> *cursor-x-addr, *cursor-y-addr
+<span id="L131" class="LineNr">131 </span><span class="Delimiter">}</span>
+<span id="L132" class="LineNr">132 </span>
+<span id="L133" class="LineNr">133 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L133'>set-cursor-position</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int <span class="Delimiter">{</span>
+<span id="L134" class="LineNr">134 </span>  <span class="Delimiter">{</span>
+<span id="L135" class="LineNr">135 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
+<span id="L136" class="LineNr">136 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L137" class="LineNr">137 </span>    <a href='103grapheme.subx.html#L109'>set-cursor-position-on-real-screen</a> x, y
+<span id="L138" class="LineNr">138 </span>    <span class="PreProc">return</span>
+<span id="L139" class="LineNr">139 </span>  <span class="Delimiter">}</span>
+<span id="L140" class="LineNr">140 </span>  <span class="muComment"># fake screen</span>
+<span id="L141" class="LineNr">141 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L142" class="LineNr">142 </span>  <span class="muComment"># ignore x &lt; 0</span>
+<span id="L143" class="LineNr">143 </span>  <span class="Delimiter">{</span>
+<span id="L144" class="LineNr">144 </span>    compare x, <span class="Constant">0</span>
+<span id="L145" class="LineNr">145 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L146" class="LineNr">146 </span>    <span class="PreProc">return</span>
+<span id="L147" class="LineNr">147 </span>  <span class="Delimiter">}</span>
+<span id="L148" class="LineNr">148 </span>  <span class="muComment"># ignore x &gt;= width</span>
+<span id="L149" class="LineNr">149 </span>  <span class="Delimiter">{</span>
+<span id="L150" class="LineNr">150 </span>    <span class="PreProc">var</span> width-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, width
+<span id="L151" class="LineNr">151 </span>    <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *width-addr
+<span id="L152" class="LineNr">152 </span>    compare x, width
+<span id="L153" class="LineNr">153 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L154" class="LineNr">154 </span>    <span class="PreProc">return</span>
+<span id="L155" class="LineNr">155 </span>  <span class="Delimiter">}</span>
+<span id="L156" class="LineNr">156 </span>  <span class="muComment"># ignore y &lt; 0</span>
+<span id="L157" class="LineNr">157 </span>  <span class="Delimiter">{</span>
+<span id="L158" class="LineNr">158 </span>    compare y, <span class="Constant">0</span>
+<span id="L159" class="LineNr">159 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L160" class="LineNr">160 </span>    <span class="PreProc">return</span>
+<span id="L161" class="LineNr">161 </span>  <span class="Delimiter">}</span>
+<span id="L162" class="LineNr">162 </span>  <span class="muComment"># ignore y &gt;= height</span>
 <span id="L163" class="LineNr">163 </span>  <span class="Delimiter">{</span>
-<span id="L164" class="LineNr">164 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
-<span id="L165" class="LineNr">165 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L166" class="LineNr">166 </span>    <a href='103grapheme.subx.html#L131'>show-cursor-on-real-screen</a> g
-<span id="L167" class="LineNr">167 </span>    <span class="PreProc">return</span>
-<span id="L168" class="LineNr">168 </span>  <span class="Delimiter">}</span>
-<span id="L169" class="LineNr">169 </span>  <span class="muComment"># fake screen</span>
-<span id="L170" class="LineNr">170 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L171" class="LineNr">171 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L172" class="LineNr">172 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L173" class="LineNr">173 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, cursor-x, cursor-y, <span class="Constant">0</span>  <span class="muComment"># cursor color not tracked for fake screen</span>
-<span id="L174" class="LineNr">174 </span><span class="Delimiter">}</span>
-<span id="L175" class="LineNr">175 </span>
-<span id="L176" class="LineNr">176 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L176'>clear-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
-<span id="L177" class="LineNr">177 </span>  <span class="Delimiter">{</span>
-<span id="L178" class="LineNr">178 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
-<span id="L179" class="LineNr">179 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L180" class="LineNr">180 </span>    <a href='500text-screen.mu.html#L209'>clear-real-screen</a>
-<span id="L181" class="LineNr">181 </span>    <span class="PreProc">return</span>
-<span id="L182" class="LineNr">182 </span>  <span class="Delimiter">}</span>
-<span id="L183" class="LineNr">183 </span>  <span class="muComment"># fake screen</span>
-<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> space/<span class="Constant">edi</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x20</span>
-<span id="L185" class="LineNr">185 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>, <span class="Constant">0</span>
-<span id="L186" class="LineNr">186 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L187" class="LineNr">187 </span>  <span class="PreProc">var</span> y/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
-<span id="L188" class="LineNr">188 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, height
-<span id="L189" class="LineNr">189 </span>  <span class="Delimiter">{</span>
-<span id="L190" class="LineNr">190 </span>    compare y, *height
-<span id="L191" class="LineNr">191 </span>    <span class="PreProc">break-if-&gt;</span>
-<span id="L192" class="LineNr">192 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
-<span id="L193" class="LineNr">193 </span>    <span class="PreProc">var</span> width/<span class="Constant">ebx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, width
-<span id="L194" class="LineNr">194 </span>    <span class="Delimiter">{</span>
-<span id="L195" class="LineNr">195 </span>      compare x, *width
-<span id="L196" class="LineNr">196 </span>      <span class="PreProc">break-if-&gt;</span>
-<span id="L197" class="LineNr">197 </span>      <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, space, x, y, <span class="Constant">0</span>  <span class="muComment"># color=black</span>
-<span id="L198" class="LineNr">198 </span>      x <span class="SpecialChar">&lt;-</span> increment
-<span id="L199" class="LineNr">199 </span>      <span class="PreProc">loop</span>
-<span id="L200" class="LineNr">200 </span>    <span class="Delimiter">}</span>
-<span id="L201" class="LineNr">201 </span>    y <span class="SpecialChar">&lt;-</span> increment
-<span id="L202" class="LineNr">202 </span>    <span class="PreProc">loop</span>
-<span id="L203" class="LineNr">203 </span>  <span class="Delimiter">}</span>
-<span id="L204" class="LineNr">204 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>, <span class="Constant">0</span>
-<span id="L205" class="LineNr">205 </span><span class="Delimiter">}</span>
-<span id="L206" class="LineNr">206 </span>
-<span id="L207" class="LineNr">207 </span><span class="muComment"># there's no grapheme that guarantees to cover every pixel, so we'll bump down</span>
-<span id="L208" class="LineNr">208 </span><span class="muComment"># to pixels for a real screen</span>
-<span id="L209" class="LineNr">209 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L209'>clear-real-screen</a></span> <span class="Delimiter">{</span>
-<span id="L210" class="LineNr">210 </span>  <span class="PreProc">var</span> y/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L211" class="LineNr">211 </span>  <span class="Delimiter">{</span>
-<span id="L212" class="LineNr">212 </span>    compare y, <span class="Constant">0x300</span>  <span class="muComment"># screen-height = 768</span>
-<span id="L213" class="LineNr">213 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L214" class="LineNr">214 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L215" class="LineNr">215 </span>    <span class="Delimiter">{</span>
-<span id="L216" class="LineNr">216 </span>      compare x, <span class="Constant">0x400</span>  <span class="muComment"># screen-width = 1024</span>
-<span id="L217" class="LineNr">217 </span>      <span class="PreProc">break-if-&gt;=</span>
-<span id="L218" class="LineNr">218 </span>      <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, <span class="Constant">0</span>  <span class="muComment"># black</span>
-<span id="L219" class="LineNr">219 </span>      x <span class="SpecialChar">&lt;-</span> increment
-<span id="L220" class="LineNr">220 </span>      <span class="PreProc">loop</span>
-<span id="L221" class="LineNr">221 </span>    <span class="Delimiter">}</span>
-<span id="L222" class="LineNr">222 </span>    y <span class="SpecialChar">&lt;-</span> increment
-<span id="L223" class="LineNr">223 </span>    <span class="PreProc">loop</span>
-<span id="L224" class="LineNr">224 </span>  <span class="Delimiter">}</span>
-<span id="L225" class="LineNr">225 </span><span class="Delimiter">}</span>
-<span id="L226" class="LineNr">226 </span>
-<span id="L227" class="LineNr">227 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L227'>screen-grapheme-at</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
-<span id="L228" class="LineNr">228 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L229" class="LineNr">229 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L90'>screen-cell-index</a> screen-addr, x, y
-<span id="L230" class="LineNr">230 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L234'>screen-grapheme-at-idx</a> screen-addr, idx
-<span id="L231" class="LineNr">231 </span>  <span class="PreProc">return</span> result
-<span id="L232" class="LineNr">232 </span><span class="Delimiter">}</span>
-<span id="L233" class="LineNr">233 </span>
-<span id="L234" class="LineNr">234 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L234'>screen-grapheme-at-idx</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), idx-on-stack: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
-<span id="L235" class="LineNr">235 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L236" class="LineNr">236 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
-<span id="L237" class="LineNr">237 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
-<span id="L238" class="LineNr">238 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy idx-on-stack
-<span id="L239" class="LineNr">239 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data, idx
-<span id="L240" class="LineNr">240 </span>  <span class="PreProc">var</span> cell/<span class="Constant">eax</span>: (addr <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index data, offset
-<span id="L241" class="LineNr">241 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> get cell, data
-<span id="L242" class="LineNr">242 </span>  <span class="PreProc">return</span> *src
-<span id="L243" class="LineNr">243 </span><span class="Delimiter">}</span>
-<span id="L244" class="LineNr">244 </span>
-<span id="L245" class="LineNr">245 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L245'>screen-color-at</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L246" class="LineNr">246 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L247" class="LineNr">247 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L90'>screen-cell-index</a> screen-addr, x, y
-<span id="L248" class="LineNr">248 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L252'>screen-color-at-idx</a> screen-addr, idx
-<span id="L249" class="LineNr">249 </span>  <span class="PreProc">return</span> result
-<span id="L250" class="LineNr">250 </span><span class="Delimiter">}</span>
-<span id="L251" class="LineNr">251 </span>
-<span id="L252" class="LineNr">252 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L252'>screen-color-at-idx</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), idx-on-stack: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L254" class="LineNr">254 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
-<span id="L255" class="LineNr">255 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
-<span id="L256" class="LineNr">256 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy idx-on-stack
-<span id="L257" class="LineNr">257 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data, idx
-<span id="L258" class="LineNr">258 </span>  <span class="PreProc">var</span> cell/<span class="Constant">eax</span>: (addr <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index data, offset
-<span id="L259" class="LineNr">259 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get cell, color
-<span id="L260" class="LineNr">260 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *src
-<span id="L261" class="LineNr">261 </span>  <span class="PreProc">return</span> result
-<span id="L262" class="LineNr">262 </span><span class="Delimiter">}</span>
+<span id="L164" class="LineNr">164 </span>    <span class="PreProc">var</span> height-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, height
+<span id="L165" class="LineNr">165 </span>    <span class="PreProc">var</span> height/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *height-addr
+<span id="L166" class="LineNr">166 </span>    compare y, height
+<span id="L167" class="LineNr">167 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L168" class="LineNr">168 </span>    <span class="PreProc">return</span>
+<span id="L169" class="LineNr">169 </span>  <span class="Delimiter">}</span>
+<span id="L170" class="LineNr">170 </span>  <span class="muComment"># screen-&gt;cursor-x = x</span>
+<span id="L171" class="LineNr">171 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-x
+<span id="L172" class="LineNr">172 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L173" class="LineNr">173 </span>  copy-to *dest, src
+<span id="L174" class="LineNr">174 </span>  <span class="muComment"># screen-&gt;cursor-y = y</span>
+<span id="L175" class="LineNr">175 </span>  dest <span class="SpecialChar">&lt;-</span> get screen-addr, cursor-y
+<span id="L176" class="LineNr">176 </span>  src <span class="SpecialChar">&lt;-</span> copy y
+<span id="L177" class="LineNr">177 </span>  copy-to *dest, src
+<span id="L178" class="LineNr">178 </span><span class="Delimiter">}</span>
+<span id="L179" class="LineNr">179 </span>
+<span id="L180" class="LineNr">180 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L180'>show-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), g: grapheme <span class="Delimiter">{</span>
+<span id="L181" class="LineNr">181 </span>  <span class="Delimiter">{</span>
+<span id="L182" class="LineNr">182 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
+<span id="L183" class="LineNr">183 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L184" class="LineNr">184 </span>    <a href='103grapheme.subx.html#L134'>show-cursor-on-real-screen</a> g
+<span id="L185" class="LineNr">185 </span>    <span class="PreProc">return</span>
+<span id="L186" class="LineNr">186 </span>  <span class="Delimiter">}</span>
+<span id="L187" class="LineNr">187 </span>  <span class="muComment"># fake screen</span>
+<span id="L188" class="LineNr">188 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L189" class="LineNr">189 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L190" class="LineNr">190 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L191" class="LineNr">191 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, cursor-x, cursor-y, <span class="Constant">0</span>/fg, <span class="Constant">7</span>/bg
+<span id="L192" class="LineNr">192 </span><span class="Delimiter">}</span>
+<span id="L193" class="LineNr">193 </span>
+<span id="L194" class="LineNr">194 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L194'>clear-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L195" class="LineNr">195 </span>  <span class="Delimiter">{</span>
+<span id="L196" class="LineNr">196 </span>    compare <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>
+<span id="L197" class="LineNr">197 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L198" class="LineNr">198 </span>    <a href='500text-screen.mu.html#L226'>clear-real-screen</a>
+<span id="L199" class="LineNr">199 </span>    <span class="PreProc">return</span>
+<span id="L200" class="LineNr">200 </span>  <span class="Delimiter">}</span>
+<span id="L201" class="LineNr">201 </span>  <span class="muComment"># fake screen</span>
+<span id="L202" class="LineNr">202 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L203" class="LineNr">203 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L204" class="LineNr">204 </span>  <span class="PreProc">var</span> y/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L205" class="LineNr">205 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, height
+<span id="L206" class="LineNr">206 </span>  <span class="Delimiter">{</span>
+<span id="L207" class="LineNr">207 </span>    compare y, *height
+<span id="L208" class="LineNr">208 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L209" class="LineNr">209 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L210" class="LineNr">210 </span>    <span class="PreProc">var</span> width/<span class="Constant">ebx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get screen-addr, width
+<span id="L211" class="LineNr">211 </span>    <span class="Delimiter">{</span>
+<span id="L212" class="LineNr">212 </span>      compare x, *width
+<span id="L213" class="LineNr">213 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L214" class="LineNr">214 </span>      <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span>/space, x, y, <span class="Constant">0</span>/fg=black, <span class="Constant">0</span>/bg=black
+<span id="L215" class="LineNr">215 </span>      x <span class="SpecialChar">&lt;-</span> increment
+<span id="L216" class="LineNr">216 </span>      <span class="PreProc">loop</span>
+<span id="L217" class="LineNr">217 </span>    <span class="Delimiter">}</span>
+<span id="L218" class="LineNr">218 </span>    y <span class="SpecialChar">&lt;-</span> increment
+<span id="L219" class="LineNr">219 </span>    <span class="PreProc">loop</span>
+<span id="L220" class="LineNr">220 </span>  <span class="Delimiter">}</span>
+<span id="L221" class="LineNr">221 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L222" class="LineNr">222 </span><span class="Delimiter">}</span>
+<span id="L223" class="LineNr">223 </span>
+<span id="L224" class="LineNr">224 </span><span class="muComment"># there's no grapheme that guarantees to cover every pixel, so we'll bump down</span>
+<span id="L225" class="LineNr">225 </span><span class="muComment"># to pixels for a real screen</span>
+<span id="L226" class="LineNr">226 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L226'>clear-real-screen</a></span> <span class="Delimiter">{</span>
+<span id="L227" class="LineNr">227 </span>  <span class="PreProc">var</span> y/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L228" class="LineNr">228 </span>  <span class="Delimiter">{</span>
+<span id="L229" class="LineNr">229 </span>    compare y, <span class="Constant">0x300</span>/screen-height=<span class="Constant">768</span>
+<span id="L230" class="LineNr">230 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L231" class="LineNr">231 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L232" class="LineNr">232 </span>    <span class="Delimiter">{</span>
+<span id="L233" class="LineNr">233 </span>      compare x, <span class="Constant">0x400</span>/screen-width=<span class="Constant">1024</span>
+<span id="L234" class="LineNr">234 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L235" class="LineNr">235 </span>      <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, <span class="Constant">0</span>/color=black
+<span id="L236" class="LineNr">236 </span>      x <span class="SpecialChar">&lt;-</span> increment
+<span id="L237" class="LineNr">237 </span>      <span class="PreProc">loop</span>
+<span id="L238" class="LineNr">238 </span>    <span class="Delimiter">}</span>
+<span id="L239" class="LineNr">239 </span>    y <span class="SpecialChar">&lt;-</span> increment
+<span id="L240" class="LineNr">240 </span>    <span class="PreProc">loop</span>
+<span id="L241" class="LineNr">241 </span>  <span class="Delimiter">}</span>
+<span id="L242" class="LineNr">242 </span><span class="Delimiter">}</span>
+<span id="L243" class="LineNr">243 </span>
+<span id="L244" class="LineNr">244 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L244'>screen-grapheme-at</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L245" class="LineNr">245 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L246" class="LineNr">246 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> screen-addr, x, y
+<span id="L247" class="LineNr">247 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L251'>screen-grapheme-at-idx</a> screen-addr, idx
+<span id="L248" class="LineNr">248 </span>  <span class="PreProc">return</span> result
+<span id="L249" class="LineNr">249 </span><span class="Delimiter">}</span>
+<span id="L250" class="LineNr">250 </span>
+<span id="L251" class="LineNr">251 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L251'>screen-grapheme-at-idx</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), idx-on-stack: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span>
+<span id="L252" class="LineNr">252 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
+<span id="L254" class="LineNr">254 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L255" class="LineNr">255 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy idx-on-stack
+<span id="L256" class="LineNr">256 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data, idx
+<span id="L257" class="LineNr">257 </span>  <span class="PreProc">var</span> cell/<span class="Constant">eax</span>: (addr <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index data, offset
+<span id="L258" class="LineNr">258 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: (addr grapheme) <span class="SpecialChar">&lt;-</span> get cell, data
+<span id="L259" class="LineNr">259 </span>  <span class="PreProc">return</span> *src
+<span id="L260" class="LineNr">260 </span><span class="Delimiter">}</span>
+<span id="L261" class="LineNr">261 </span>
+<span id="L262" class="LineNr">262 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L262'>screen-color-at</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L263" class="LineNr">263 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L264" class="LineNr">264 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> screen-addr, x, y
+<span id="L265" class="LineNr">265 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L269'>screen-color-at-idx</a> screen-addr, idx
+<span id="L266" class="LineNr">266 </span>  <span class="PreProc">return</span> result
+<span id="L267" class="LineNr">267 </span><span class="Delimiter">}</span>
+<span id="L268" class="LineNr">268 </span>
+<span id="L269" class="LineNr">269 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L269'>screen-color-at-idx</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), idx-on-stack: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L270" class="LineNr">270 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L271" class="LineNr">271 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
+<span id="L272" class="LineNr">272 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L273" class="LineNr">273 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy idx-on-stack
+<span id="L274" class="LineNr">274 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data, idx
+<span id="L275" class="LineNr">275 </span>  <span class="PreProc">var</span> cell/<span class="Constant">eax</span>: (addr <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index data, offset
+<span id="L276" class="LineNr">276 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get cell, color
+<span id="L277" class="LineNr">277 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *src
+<span id="L278" class="LineNr">278 </span>  <span class="PreProc">return</span> result
+<span id="L279" class="LineNr">279 </span><span class="Delimiter">}</span>
+<span id="L280" class="LineNr">280 </span>
+<span id="L281" class="LineNr">281 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L281'>screen-background-color-at</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L282" class="LineNr">282 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L283" class="LineNr">283 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> screen-addr, x, y
+<span id="L284" class="LineNr">284 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L288'>screen-background-color-at-idx</a> screen-addr, idx
+<span id="L285" class="LineNr">285 </span>  <span class="PreProc">return</span> result
+<span id="L286" class="LineNr">286 </span><span class="Delimiter">}</span>
+<span id="L287" class="LineNr">287 </span>
+<span id="L288" class="LineNr">288 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='500text-screen.mu.html#L288'>screen-background-color-at-idx</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), idx-on-stack: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L289" class="LineNr">289 </span>  <span class="PreProc">var</span> screen-addr/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L290" class="LineNr">290 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">eax</span>: (addr handle array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> get screen-addr, data
+<span id="L291" class="LineNr">291 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L292" class="LineNr">292 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy idx-on-stack
+<span id="L293" class="LineNr">293 </span>  <span class="PreProc">var</span> offset/<span class="Constant">ecx</span>: (offset <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> compute-offset data, idx
+<span id="L294" class="LineNr">294 </span>  <span class="PreProc">var</span> cell/<span class="Constant">eax</span>: (addr <a href='500text-screen.mu.html#L17'>screen-cell</a>) <span class="SpecialChar">&lt;-</span> index data, offset
+<span id="L295" class="LineNr">295 </span>  <span class="PreProc">var</span> src/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get cell, background-color
+<span id="L296" class="LineNr">296 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *src
+<span id="L297" class="LineNr">297 </span>  <span class="PreProc">return</span> result
+<span id="L298" class="LineNr">298 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/501draw-text.mu.html b/html/baremetal/501draw-text.mu.html
index 31ee49c4..9b81ae73 100644
--- a/html/baremetal/501draw-text.mu.html
+++ b/html/baremetal/501draw-text.mu.html
@@ -58,503 +58,530 @@ if ('onhashchange' in window) {
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="muComment"># some primitives for moving the cursor without making assumptions about</span>
 <span id="L2" class="LineNr">  2 </span><span class="muComment"># raster order</span>
-<span id="L3" class="LineNr">  3 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L3'>cursor-left</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L3" class="LineNr">  3 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L3'>move-cursor-left</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
 <span id="L4" class="LineNr">  4 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L5" class="LineNr">  5 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L6" class="LineNr">  6 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L6" class="LineNr">  6 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
 <span id="L7" class="LineNr">  7 </span>  compare cursor-x, <span class="Constant">0</span>
 <span id="L8" class="LineNr">  8 </span>  <span class="Delimiter">{</span>
 <span id="L9" class="LineNr">  9 </span>    <span class="PreProc">break-if-&gt;</span>
 <span id="L10" class="LineNr"> 10 </span>    <span class="PreProc">return</span>
 <span id="L11" class="LineNr"> 11 </span>  <span class="Delimiter">}</span>
 <span id="L12" class="LineNr"> 12 </span>  cursor-x <span class="SpecialChar">&lt;-</span> decrement
-<span id="L13" class="LineNr"> 13 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
+<span id="L13" class="LineNr"> 13 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
 <span id="L14" class="LineNr"> 14 </span><span class="Delimiter">}</span>
 <span id="L15" class="LineNr"> 15 </span>
-<span id="L16" class="LineNr"> 16 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L16'>cursor-right</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L16" class="LineNr"> 16 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L16'>move-cursor-right</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
 <span id="L17" class="LineNr"> 17 </span>  <span class="PreProc">var</span> _width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L18" class="LineNr"> 18 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L19" class="LineNr"> 19 </span>  _width, dummy <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L20" class="LineNr"> 20 </span>  <span class="PreProc">var</span> width/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _width
-<span id="L21" class="LineNr"> 21 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L22" class="LineNr"> 22 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L23" class="LineNr"> 23 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L24" class="LineNr"> 24 </span>  compare cursor-x, width
-<span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">{</span>
-<span id="L26" class="LineNr"> 26 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">return</span>
-<span id="L28" class="LineNr"> 28 </span>  <span class="Delimiter">}</span>
-<span id="L29" class="LineNr"> 29 </span>  cursor-x <span class="SpecialChar">&lt;-</span> increment
-<span id="L30" class="LineNr"> 30 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
-<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span>
-<span id="L32" class="LineNr"> 32 </span>
-<span id="L33" class="LineNr"> 33 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L33'>cursor-up</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
-<span id="L34" class="LineNr"> 34 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L36" class="LineNr"> 36 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L37" class="LineNr"> 37 </span>  compare cursor-y, <span class="Constant">0</span>
-<span id="L38" class="LineNr"> 38 </span>  <span class="Delimiter">{</span>
-<span id="L39" class="LineNr"> 39 </span>    <span class="PreProc">break-if-&gt;</span>
-<span id="L40" class="LineNr"> 40 </span>    <span class="PreProc">return</span>
-<span id="L41" class="LineNr"> 41 </span>  <span class="Delimiter">}</span>
-<span id="L42" class="LineNr"> 42 </span>  cursor-y <span class="SpecialChar">&lt;-</span> decrement
-<span id="L43" class="LineNr"> 43 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
-<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">}</span>
-<span id="L45" class="LineNr"> 45 </span>
-<span id="L46" class="LineNr"> 46 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L46'>cursor-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
-<span id="L47" class="LineNr"> 47 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> _height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L49" class="LineNr"> 49 </span>  dummy, _height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> height/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _height
-<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L52" class="LineNr"> 52 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L53" class="LineNr"> 53 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L54" class="LineNr"> 54 </span>  compare cursor-y, height
-<span id="L55" class="LineNr"> 55 </span>  <span class="Delimiter">{</span>
-<span id="L56" class="LineNr"> 56 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L57" class="LineNr"> 57 </span>    <span class="PreProc">return</span>
-<span id="L58" class="LineNr"> 58 </span>  <span class="Delimiter">}</span>
-<span id="L59" class="LineNr"> 59 </span>  cursor-y <span class="SpecialChar">&lt;-</span> increment
-<span id="L60" class="LineNr"> 60 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
-<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">}</span>
-<span id="L62" class="LineNr"> 62 </span>
-<span id="L63" class="LineNr"> 63 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), g: grapheme, color: int <span class="Delimiter">{</span>
-<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L66" class="LineNr"> 66 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L67" class="LineNr"> 67 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, cursor-x, cursor-y, color
-<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span>
-<span id="L69" class="LineNr"> 69 </span>
-<span id="L70" class="LineNr"> 70 </span><span class="muComment"># draw a single line of text from x, y to xmax</span>
-<span id="L71" class="LineNr"> 71 </span><span class="muComment"># return the next 'x' coordinate</span>
-<span id="L72" class="LineNr"> 72 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
-<span id="L73" class="LineNr"> 73 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L73'>draw-text-rightward</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, xmax: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L74" class="LineNr"> 74 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
-<span id="L75" class="LineNr"> 75 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
-<span id="L76" class="LineNr"> 76 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
-<span id="L77" class="LineNr"> 77 </span>  <span class="muComment"># check if we have enough space</span>
-<span id="L78" class="LineNr"> 78 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy x
-<span id="L79" class="LineNr"> 79 </span>  <span class="Delimiter">{</span>
-<span id="L80" class="LineNr"> 80 </span>    compare xcurr, xmax
-<span id="L81" class="LineNr"> 81 </span>    <span class="PreProc">break-if-&gt;</span>
-<span id="L82" class="LineNr"> 82 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L83" class="LineNr"> 83 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L84" class="LineNr"> 84 </span>    <span class="PreProc">break-if-=</span>
-<span id="L85" class="LineNr"> 85 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L86" class="LineNr"> 86 </span>    <span class="PreProc">loop</span>
-<span id="L87" class="LineNr"> 87 </span>  <span class="Delimiter">}</span>
-<span id="L88" class="LineNr"> 88 </span>  compare xcurr, xmax
-<span id="L89" class="LineNr"> 89 </span>  <span class="Delimiter">{</span>
-<span id="L90" class="LineNr"> 90 </span>    <span class="PreProc">break-if-&lt;=</span>
-<span id="L91" class="LineNr"> 91 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>
-<span id="L92" class="LineNr"> 92 </span>  <span class="Delimiter">}</span>
-<span id="L93" class="LineNr"> 93 </span>  <span class="muComment"># we do; actually draw</span>
-<span id="L94" class="LineNr"> 94 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
-<span id="L95" class="LineNr"> 95 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
-<span id="L96" class="LineNr"> 96 </span>  <span class="Delimiter">{</span>
-<span id="L97" class="LineNr"> 97 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L98" class="LineNr"> 98 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L99" class="LineNr"> 99 </span>    <span class="PreProc">break-if-=</span>
-<span id="L100" class="LineNr">100 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, y, color
-<span id="L101" class="LineNr">101 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L102" class="LineNr">102 </span>    <span class="PreProc">loop</span>
-<span id="L103" class="LineNr">103 </span>  <span class="Delimiter">}</span>
-<span id="L104" class="LineNr">104 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, y
-<span id="L105" class="LineNr">105 </span>  <span class="PreProc">return</span> xcurr
-<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span>
-<span id="L107" class="LineNr">107 </span>
-<span id="L108" class="LineNr">108 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L108'>draw-text-rightward-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmax: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L109" class="LineNr">109 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L110" class="LineNr">110 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L111" class="LineNr">111 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L112" class="LineNr">112 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L73'>draw-text-rightward</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, cursor-x, xmax, cursor-y, color
-<span id="L113" class="LineNr">113 </span>  <span class="PreProc">return</span> result
+<span id="L19" class="LineNr"> 19 </span>  _width, dummy <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L20" class="LineNr"> 20 </span>  <span class="PreProc">var</span> limit/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _width
+<span id="L21" class="LineNr"> 21 </span>  limit <span class="SpecialChar">&lt;-</span> decrement
+<span id="L22" class="LineNr"> 22 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L23" class="LineNr"> 23 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L24" class="LineNr"> 24 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L25" class="LineNr"> 25 </span>  compare cursor-x, limit
+<span id="L26" class="LineNr"> 26 </span>  <span class="Delimiter">{</span>
+<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L28" class="LineNr"> 28 </span>    <span class="PreProc">return</span>
+<span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
+<span id="L30" class="LineNr"> 30 </span>  cursor-x <span class="SpecialChar">&lt;-</span> increment
+<span id="L31" class="LineNr"> 31 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
+<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span>
+<span id="L33" class="LineNr"> 33 </span>
+<span id="L34" class="LineNr"> 34 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L34'>move-cursor-up</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L36" class="LineNr"> 36 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L37" class="LineNr"> 37 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L38" class="LineNr"> 38 </span>  compare cursor-y, <span class="Constant">0</span>
+<span id="L39" class="LineNr"> 39 </span>  <span class="Delimiter">{</span>
+<span id="L40" class="LineNr"> 40 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L41" class="LineNr"> 41 </span>    <span class="PreProc">return</span>
+<span id="L42" class="LineNr"> 42 </span>  <span class="Delimiter">}</span>
+<span id="L43" class="LineNr"> 43 </span>  cursor-y <span class="SpecialChar">&lt;-</span> decrement
+<span id="L44" class="LineNr"> 44 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
+<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span>
+<span id="L46" class="LineNr"> 46 </span>
+<span id="L47" class="LineNr"> 47 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L47'>move-cursor-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="Delimiter">{</span>
+<span id="L48" class="LineNr"> 48 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L49" class="LineNr"> 49 </span>  <span class="PreProc">var</span> _height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L50" class="LineNr"> 50 </span>  dummy, _height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L51" class="LineNr"> 51 </span>  <span class="PreProc">var</span> limit/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _height
+<span id="L52" class="LineNr"> 52 </span>  limit <span class="SpecialChar">&lt;-</span> decrement
+<span id="L53" class="LineNr"> 53 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L54" class="LineNr"> 54 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L55" class="LineNr"> 55 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L56" class="LineNr"> 56 </span>  compare cursor-y, limit
+<span id="L57" class="LineNr"> 57 </span>  <span class="Delimiter">{</span>
+<span id="L58" class="LineNr"> 58 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L59" class="LineNr"> 59 </span>    <span class="PreProc">return</span>
+<span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
+<span id="L61" class="LineNr"> 61 </span>  cursor-y <span class="SpecialChar">&lt;-</span> increment
+<span id="L62" class="LineNr"> 62 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
+<span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span>
+<span id="L64" class="LineNr"> 64 </span>
+<span id="L65" class="LineNr"> 65 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), g: grapheme, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L68" class="LineNr"> 68 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L69" class="LineNr"> 69 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, cursor-x, cursor-y, color, background-color
+<span id="L70" class="LineNr"> 70 </span><span class="Delimiter">}</span>
+<span id="L71" class="LineNr"> 71 </span>
+<span id="L72" class="LineNr"> 72 </span><span class="muComment"># we can't really render non-ASCII yet, but when we do we'll be ready</span>
+<span id="L73" class="LineNr"> 73 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L73'>draw-code-point-at-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), c: code-point, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy c
+<span id="L75" class="LineNr"> 75 </span>  <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, color, background-color
+<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">}</span>
+<span id="L77" class="LineNr"> 77 </span>
+<span id="L78" class="LineNr"> 78 </span><span class="muComment"># draw a single line of text from x, y to xmax</span>
+<span id="L79" class="LineNr"> 79 </span><span class="muComment"># return the next 'x' coordinate</span>
+<span id="L80" class="LineNr"> 80 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
+<span id="L81" class="LineNr"> 81 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L81'>draw-text-rightward</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, xmax: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L82" class="LineNr"> 82 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L83" class="LineNr"> 83 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L84" class="LineNr"> 84 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
+<span id="L85" class="LineNr"> 85 </span>  <span class="muComment"># check if we have enough space</span>
+<span id="L86" class="LineNr"> 86 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L87" class="LineNr"> 87 </span>  <span class="Delimiter">{</span>
+<span id="L88" class="LineNr"> 88 </span>    compare xcurr, xmax
+<span id="L89" class="LineNr"> 89 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L90" class="LineNr"> 90 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L91" class="LineNr"> 91 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L92" class="LineNr"> 92 </span>    <span class="PreProc">break-if-=</span>
+<span id="L93" class="LineNr"> 93 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L94" class="LineNr"> 94 </span>    <span class="PreProc">loop</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="Delimiter">}</span>
+<span id="L96" class="LineNr"> 96 </span>  compare xcurr, xmax
+<span id="L97" class="LineNr"> 97 </span>  <span class="Delimiter">{</span>
+<span id="L98" class="LineNr"> 98 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L99" class="LineNr"> 99 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>
+<span id="L100" class="LineNr">100 </span>  <span class="Delimiter">}</span>
+<span id="L101" class="LineNr">101 </span>  <span class="muComment"># we do; actually draw</span>
+<span id="L102" class="LineNr">102 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
+<span id="L103" class="LineNr">103 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
+<span id="L104" class="LineNr">104 </span>  <span class="Delimiter">{</span>
+<span id="L105" class="LineNr">105 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L106" class="LineNr">106 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L107" class="LineNr">107 </span>    <span class="PreProc">break-if-=</span>
+<span id="L108" class="LineNr">108 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, y, color, background-color
+<span id="L109" class="LineNr">109 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L110" class="LineNr">110 </span>    <span class="PreProc">loop</span>
+<span id="L111" class="LineNr">111 </span>  <span class="Delimiter">}</span>
+<span id="L112" class="LineNr">112 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, y
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">return</span> xcurr
 <span id="L114" class="LineNr">114 </span><span class="Delimiter">}</span>
 <span id="L115" class="LineNr">115 </span>
-<span id="L116" class="LineNr">116 </span><span class="muComment"># draw text in the rectangle from (xmin, ymin) to (xmax, ymax), starting from (x, y), wrapping as necessary</span>
-<span id="L117" class="LineNr">117 </span><span class="muComment"># return the next (x, y) coordinate in raster order where drawing stopped</span>
-<span id="L118" class="LineNr">118 </span><span class="muComment"># that way the caller can draw more if given the same min and max bounding-box.</span>
-<span id="L119" class="LineNr">119 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
-<span id="L120" class="LineNr">120 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L121" class="LineNr">121 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
-<span id="L122" class="LineNr">122 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
-<span id="L123" class="LineNr">123 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
-<span id="L124" class="LineNr">124 </span>  <span class="muComment"># check if we have enough space</span>
-<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
-<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
-<span id="L127" class="LineNr">127 </span>  <span class="Delimiter">{</span>
-<span id="L128" class="LineNr">128 </span>    compare ycurr, ymax
-<span id="L129" class="LineNr">129 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L130" class="LineNr">130 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L131" class="LineNr">131 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L132" class="LineNr">132 </span>    <span class="PreProc">break-if-=</span>
-<span id="L133" class="LineNr">133 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L134" class="LineNr">134 </span>    compare xcurr, xmax
-<span id="L135" class="LineNr">135 </span>    <span class="Delimiter">{</span>
-<span id="L136" class="LineNr">136 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L137" class="LineNr">137 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L138" class="LineNr">138 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L139" class="LineNr">139 </span>    <span class="Delimiter">}</span>
-<span id="L140" class="LineNr">140 </span>    <span class="PreProc">loop</span>
-<span id="L141" class="LineNr">141 </span>  <span class="Delimiter">}</span>
-<span id="L142" class="LineNr">142 </span>  compare ycurr, ymax
+<span id="L116" class="LineNr">116 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L116'>draw-text-rightward-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L117" class="LineNr">117 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L118" class="LineNr">118 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L119" class="LineNr">119 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L120" class="LineNr">120 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L81'>draw-text-rightward</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, x, width, y, color, background-color
+<span id="L121" class="LineNr">121 </span>  <span class="PreProc">return</span> result
+<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span>
+<span id="L123" class="LineNr">123 </span>
+<span id="L124" class="LineNr">124 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L124'>draw-text-rightward-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmax: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L125" class="LineNr">125 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L127" class="LineNr">127 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L81'>draw-text-rightward</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, cursor-x, xmax, cursor-y, color, background-color
+<span id="L129" class="LineNr">129 </span>  <span class="PreProc">return</span> result
+<span id="L130" class="LineNr">130 </span><span class="Delimiter">}</span>
+<span id="L131" class="LineNr">131 </span>
+<span id="L132" class="LineNr">132 </span><span class="muComment"># draw text in the rectangle from (xmin, ymin) to (xmax, ymax), starting from (x, y), wrapping as necessary</span>
+<span id="L133" class="LineNr">133 </span><span class="muComment"># return the next (x, y) coordinate in raster order where drawing stopped</span>
+<span id="L134" class="LineNr">134 </span><span class="muComment"># that way the caller can draw more if given the same min and max bounding-box.</span>
+<span id="L135" class="LineNr">135 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
+<span id="L136" class="LineNr">136 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L137" class="LineNr">137 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L138" class="LineNr">138 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L139" class="LineNr">139 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
+<span id="L140" class="LineNr">140 </span>  <span class="muComment"># check if we have enough space</span>
+<span id="L141" class="LineNr">141 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L142" class="LineNr">142 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
 <span id="L143" class="LineNr">143 </span>  <span class="Delimiter">{</span>
-<span id="L144" class="LineNr">144 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L145" class="LineNr">145 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
-<span id="L146" class="LineNr">146 </span>  <span class="Delimiter">}</span>
-<span id="L147" class="LineNr">147 </span>  <span class="muComment"># we do; actually draw</span>
-<span id="L148" class="LineNr">148 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
-<span id="L149" class="LineNr">149 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
-<span id="L150" class="LineNr">150 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
-<span id="L151" class="LineNr">151 </span>  <span class="Delimiter">{</span>
-<span id="L152" class="LineNr">152 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L153" class="LineNr">153 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L154" class="LineNr">154 </span>    <span class="PreProc">break-if-=</span>
-<span id="L155" class="LineNr">155 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color
-<span id="L156" class="LineNr">156 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L157" class="LineNr">157 </span>    compare xcurr, xmax
-<span id="L158" class="LineNr">158 </span>    <span class="Delimiter">{</span>
-<span id="L159" class="LineNr">159 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L160" class="LineNr">160 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L161" class="LineNr">161 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L162" class="LineNr">162 </span>    <span class="Delimiter">}</span>
-<span id="L163" class="LineNr">163 </span>    <span class="PreProc">loop</span>
-<span id="L164" class="LineNr">164 </span>  <span class="Delimiter">}</span>
-<span id="L165" class="LineNr">165 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
-<span id="L166" class="LineNr">166 </span>  <span class="PreProc">return</span> xcurr, ycurr
-<span id="L167" class="LineNr">167 </span><span class="Delimiter">}</span>
-<span id="L168" class="LineNr">168 </span>
-<span id="L169" class="LineNr">169 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L169'>move-cursor-rightward-and-downward</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), xmin: int, xmax: int <span class="Delimiter">{</span>
-<span id="L170" class="LineNr">170 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L171" class="LineNr">171 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L172" class="LineNr">172 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L173" class="LineNr">173 </span>  cursor-x <span class="SpecialChar">&lt;-</span> increment
-<span id="L174" class="LineNr">174 </span>  compare cursor-x, xmax
-<span id="L175" class="LineNr">175 </span>  <span class="Delimiter">{</span>
-<span id="L176" class="LineNr">176 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L177" class="LineNr">177 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L178" class="LineNr">178 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
-<span id="L179" class="LineNr">179 </span>  <span class="Delimiter">}</span>
-<span id="L180" class="LineNr">180 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
-<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='501draw-text.mu.html#L183'>draw-text-wrapping-right-then-down-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L184" class="LineNr">184 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L185" class="LineNr">185 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L186" class="LineNr">186 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
-<span id="L187" class="LineNr">187 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>, <span class="Constant">0</span>, x2, y2, x, y, color
-<span id="L188" class="LineNr">188 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
-<span id="L189" class="LineNr">189 </span><span class="Delimiter">}</span>
-<span id="L190" class="LineNr">190 </span>
-<span id="L191" class="LineNr">191 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L191'>draw-text-wrapping-right-then-down-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, color: int <span class="Delimiter">{</span>
-<span id="L192" class="LineNr">192 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L193" class="LineNr">193 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L194" class="LineNr">194 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L195" class="LineNr">195 </span>  <span class="PreProc">var</span> end-x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-x
-<span id="L196" class="LineNr">196 </span>  end-x <span class="SpecialChar">&lt;-</span> increment
-<span id="L197" class="LineNr">197 </span>  compare end-x, xmax
-<span id="L198" class="LineNr">198 </span>  <span class="Delimiter">{</span>
-<span id="L199" class="LineNr">199 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L200" class="LineNr">200 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L201" class="LineNr">201 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
-<span id="L202" class="LineNr">202 </span>  <span class="Delimiter">}</span>
-<span id="L203" class="LineNr">203 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color
-<span id="L204" class="LineNr">204 </span><span class="Delimiter">}</span>
-<span id="L205" class="LineNr">205 </span>
-<span id="L206" class="LineNr">206 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), color: int <span class="Delimiter">{</span>
-<span id="L207" class="LineNr">207 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L209" class="LineNr">209 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L210" class="LineNr">210 </span>  <a href='501draw-text.mu.html#L191'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>, <span class="Constant">0</span>, width, height, color
-<span id="L211" class="LineNr">211 </span><span class="Delimiter">}</span>
-<span id="L212" class="LineNr">212 </span>
-<span id="L213" class="LineNr">213 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L213'>draw-int32-hex-wrapping-right-then-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L214" class="LineNr">214 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
-<span id="L215" class="LineNr">215 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
-<span id="L216" class="LineNr">216 </span>  <a href='117write-int-hex.subx.html#L92'>write-int32-hex</a> stream, n
-<span id="L217" class="LineNr">217 </span>  <span class="muComment"># check if we have enough space</span>
-<span id="L218" class="LineNr">218 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
-<span id="L219" class="LineNr">219 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
-<span id="L220" class="LineNr">220 </span>  <span class="Delimiter">{</span>
-<span id="L221" class="LineNr">221 </span>    compare ycurr, ymax
-<span id="L222" class="LineNr">222 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L223" class="LineNr">223 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L224" class="LineNr">224 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L225" class="LineNr">225 </span>    <span class="PreProc">break-if-=</span>
-<span id="L226" class="LineNr">226 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L227" class="LineNr">227 </span>    compare xcurr, xmax
-<span id="L228" class="LineNr">228 </span>    <span class="Delimiter">{</span>
-<span id="L229" class="LineNr">229 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L230" class="LineNr">230 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L231" class="LineNr">231 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L232" class="LineNr">232 </span>    <span class="Delimiter">}</span>
-<span id="L233" class="LineNr">233 </span>    <span class="PreProc">loop</span>
-<span id="L234" class="LineNr">234 </span>  <span class="Delimiter">}</span>
-<span id="L235" class="LineNr">235 </span>  compare ycurr, ymax
+<span id="L144" class="LineNr">144 </span>    compare ycurr, ymax
+<span id="L145" class="LineNr">145 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L146" class="LineNr">146 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L147" class="LineNr">147 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L148" class="LineNr">148 </span>    <span class="PreProc">break-if-=</span>
+<span id="L149" class="LineNr">149 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L150" class="LineNr">150 </span>    compare xcurr, xmax
+<span id="L151" class="LineNr">151 </span>    <span class="Delimiter">{</span>
+<span id="L152" class="LineNr">152 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L153" class="LineNr">153 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L154" class="LineNr">154 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L155" class="LineNr">155 </span>    <span class="Delimiter">}</span>
+<span id="L156" class="LineNr">156 </span>    <span class="PreProc">loop</span>
+<span id="L157" class="LineNr">157 </span>  <span class="Delimiter">}</span>
+<span id="L158" class="LineNr">158 </span>  compare ycurr, ymax
+<span id="L159" class="LineNr">159 </span>  <span class="Delimiter">{</span>
+<span id="L160" class="LineNr">160 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L161" class="LineNr">161 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L162" class="LineNr">162 </span>  <span class="Delimiter">}</span>
+<span id="L163" class="LineNr">163 </span>  <span class="muComment"># we do; actually draw</span>
+<span id="L164" class="LineNr">164 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
+<span id="L165" class="LineNr">165 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
+<span id="L166" class="LineNr">166 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
+<span id="L167" class="LineNr">167 </span>  <span class="Delimiter">{</span>
+<span id="L168" class="LineNr">168 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L169" class="LineNr">169 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L170" class="LineNr">170 </span>    <span class="PreProc">break-if-=</span>
+<span id="L171" class="LineNr">171 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color, background-color
+<span id="L172" class="LineNr">172 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L173" class="LineNr">173 </span>    compare xcurr, xmax
+<span id="L174" class="LineNr">174 </span>    <span class="Delimiter">{</span>
+<span id="L175" class="LineNr">175 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L176" class="LineNr">176 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L177" class="LineNr">177 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L178" class="LineNr">178 </span>    <span class="Delimiter">}</span>
+<span id="L179" class="LineNr">179 </span>    <span class="PreProc">loop</span>
+<span id="L180" class="LineNr">180 </span>  <span class="Delimiter">}</span>
+<span id="L181" class="LineNr">181 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
+<span id="L182" class="LineNr">182 </span>  <span class="PreProc">return</span> xcurr, ycurr
+<span id="L183" class="LineNr">183 </span><span class="Delimiter">}</span>
+<span id="L184" class="LineNr">184 </span>
+<span id="L185" class="LineNr">185 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), xmin: int, xmax: int <span class="Delimiter">{</span>
+<span id="L186" class="LineNr">186 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L187" class="LineNr">187 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L188" class="LineNr">188 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L189" class="LineNr">189 </span>  cursor-x <span class="SpecialChar">&lt;-</span> increment
+<span id="L190" class="LineNr">190 </span>  compare cursor-x, xmax
+<span id="L191" class="LineNr">191 </span>  <span class="Delimiter">{</span>
+<span id="L192" class="LineNr">192 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L193" class="LineNr">193 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L194" class="LineNr">194 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
+<span id="L195" class="LineNr">195 </span>  <span class="Delimiter">}</span>
+<span id="L196" class="LineNr">196 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, cursor-x, cursor-y
+<span id="L197" class="LineNr">197 </span><span class="Delimiter">}</span>
+<span id="L198" class="LineNr">198 </span>
+<span id="L199" class="LineNr">199 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L199'>draw-text-wrapping-right-then-down-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L200" class="LineNr">200 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L201" class="LineNr">201 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L202" class="LineNr">202 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
+<span id="L203" class="LineNr">203 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, x2, y2, x, y, color, background-color
+<span id="L204" class="LineNr">204 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
+<span id="L205" class="LineNr">205 </span><span class="Delimiter">}</span>
+<span id="L206" class="LineNr">206 </span>
+<span id="L207" class="LineNr">207 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L207'>draw-text-wrapping-right-then-down-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L209" class="LineNr">209 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L210" class="LineNr">210 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L211" class="LineNr">211 </span>  <span class="PreProc">var</span> end-x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-x
+<span id="L212" class="LineNr">212 </span>  end-x <span class="SpecialChar">&lt;-</span> increment
+<span id="L213" class="LineNr">213 </span>  compare end-x, xmax
+<span id="L214" class="LineNr">214 </span>  <span class="Delimiter">{</span>
+<span id="L215" class="LineNr">215 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L216" class="LineNr">216 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L217" class="LineNr">217 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
+<span id="L218" class="LineNr">218 </span>  <span class="Delimiter">}</span>
+<span id="L219" class="LineNr">219 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color, background-color
+<span id="L220" class="LineNr">220 </span><span class="Delimiter">}</span>
+<span id="L221" class="LineNr">221 </span>
+<span id="L222" class="LineNr">222 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L223" class="LineNr">223 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L224" class="LineNr">224 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L225" class="LineNr">225 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L226" class="LineNr">226 </span>  <a href='501draw-text.mu.html#L207'>draw-text-wrapping-right-then-down-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, width, height, color, background-color
+<span id="L227" class="LineNr">227 </span><span class="Delimiter">}</span>
+<span id="L228" class="LineNr">228 </span>
+<span id="L229" class="LineNr">229 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L229'>draw-int32-hex-wrapping-right-then-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L230" class="LineNr">230 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L231" class="LineNr">231 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L232" class="LineNr">232 </span>  <a href='117write-int-hex.subx.html#L92'>write-int32-hex</a> stream, n
+<span id="L233" class="LineNr">233 </span>  <span class="muComment"># check if we have enough space</span>
+<span id="L234" class="LineNr">234 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L235" class="LineNr">235 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
 <span id="L236" class="LineNr">236 </span>  <span class="Delimiter">{</span>
-<span id="L237" class="LineNr">237 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L238" class="LineNr">238 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
-<span id="L239" class="LineNr">239 </span>  <span class="Delimiter">}</span>
-<span id="L240" class="LineNr">240 </span>  <span class="muComment"># we do; actually draw</span>
-<span id="L241" class="LineNr">241 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
-<span id="L242" class="LineNr">242 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
-<span id="L243" class="LineNr">243 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
-<span id="L244" class="LineNr">244 </span>  <span class="Delimiter">{</span>
-<span id="L245" class="LineNr">245 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L246" class="LineNr">246 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L247" class="LineNr">247 </span>    <span class="PreProc">break-if-=</span>
-<span id="L248" class="LineNr">248 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color
-<span id="L249" class="LineNr">249 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L250" class="LineNr">250 </span>    compare xcurr, xmax
-<span id="L251" class="LineNr">251 </span>    <span class="Delimiter">{</span>
-<span id="L252" class="LineNr">252 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L253" class="LineNr">253 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L254" class="LineNr">254 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L255" class="LineNr">255 </span>    <span class="Delimiter">}</span>
-<span id="L256" class="LineNr">256 </span>    <span class="PreProc">loop</span>
-<span id="L257" class="LineNr">257 </span>  <span class="Delimiter">}</span>
-<span id="L258" class="LineNr">258 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
-<span id="L259" class="LineNr">259 </span>  <span class="PreProc">return</span> xcurr, ycurr
-<span id="L260" class="LineNr">260 </span><span class="Delimiter">}</span>
-<span id="L261" class="LineNr">261 </span>
-<span id="L262" class="LineNr">262 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L262'>draw-int32-hex-wrapping-right-then-down-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L263" class="LineNr">263 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L264" class="LineNr">264 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L265" class="LineNr">265 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
-<span id="L266" class="LineNr">266 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L213'>draw-int32-hex-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>, <span class="Constant">0</span>, x2, y2, x, y, color
-<span id="L267" class="LineNr">267 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
-<span id="L268" class="LineNr">268 </span><span class="Delimiter">}</span>
-<span id="L269" class="LineNr">269 </span>
-<span id="L270" class="LineNr">270 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L270'>draw-int32-hex-wrapping-right-then-down-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, color: int <span class="Delimiter">{</span>
-<span id="L271" class="LineNr">271 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L272" class="LineNr">272 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L273" class="LineNr">273 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L274" class="LineNr">274 </span>  <span class="PreProc">var</span> end-x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-x
-<span id="L275" class="LineNr">275 </span>  end-x <span class="SpecialChar">&lt;-</span> increment
-<span id="L276" class="LineNr">276 </span>  compare end-x, xmax
-<span id="L277" class="LineNr">277 </span>  <span class="Delimiter">{</span>
-<span id="L278" class="LineNr">278 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L279" class="LineNr">279 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L280" class="LineNr">280 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
-<span id="L281" class="LineNr">281 </span>  <span class="Delimiter">}</span>
-<span id="L282" class="LineNr">282 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L213'>draw-int32-hex-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color
-<span id="L283" class="LineNr">283 </span><span class="Delimiter">}</span>
-<span id="L284" class="LineNr">284 </span>
-<span id="L285" class="LineNr">285 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, color: int <span class="Delimiter">{</span>
-<span id="L286" class="LineNr">286 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L287" class="LineNr">287 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L288" class="LineNr">288 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L289" class="LineNr">289 </span>  <a href='501draw-text.mu.html#L270'>draw-int32-hex-wrapping-right-then-down-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>, <span class="Constant">0</span>, width, height, color
-<span id="L290" class="LineNr">290 </span><span class="Delimiter">}</span>
-<span id="L291" class="LineNr">291 </span>
-<span id="L292" class="LineNr">292 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L292'>draw-int32-decimal-wrapping-right-then-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L293" class="LineNr">293 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
-<span id="L294" class="LineNr">294 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
-<span id="L295" class="LineNr">295 </span>  <a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> stream, n
-<span id="L296" class="LineNr">296 </span>  <span class="muComment"># check if we have enough space</span>
-<span id="L297" class="LineNr">297 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
-<span id="L298" class="LineNr">298 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
-<span id="L299" class="LineNr">299 </span>  <span class="Delimiter">{</span>
-<span id="L300" class="LineNr">300 </span>    compare ycurr, ymax
-<span id="L301" class="LineNr">301 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L302" class="LineNr">302 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L303" class="LineNr">303 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L304" class="LineNr">304 </span>    <span class="PreProc">break-if-=</span>
-<span id="L305" class="LineNr">305 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L306" class="LineNr">306 </span>    compare xcurr, xmax
-<span id="L307" class="LineNr">307 </span>    <span class="Delimiter">{</span>
-<span id="L308" class="LineNr">308 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L309" class="LineNr">309 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L310" class="LineNr">310 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L311" class="LineNr">311 </span>    <span class="Delimiter">}</span>
-<span id="L312" class="LineNr">312 </span>    <span class="PreProc">loop</span>
-<span id="L313" class="LineNr">313 </span>  <span class="Delimiter">}</span>
-<span id="L314" class="LineNr">314 </span>  compare ycurr, ymax
+<span id="L237" class="LineNr">237 </span>    compare ycurr, ymax
+<span id="L238" class="LineNr">238 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L239" class="LineNr">239 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L240" class="LineNr">240 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L241" class="LineNr">241 </span>    <span class="PreProc">break-if-=</span>
+<span id="L242" class="LineNr">242 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L243" class="LineNr">243 </span>    compare xcurr, xmax
+<span id="L244" class="LineNr">244 </span>    <span class="Delimiter">{</span>
+<span id="L245" class="LineNr">245 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L246" class="LineNr">246 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L247" class="LineNr">247 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L248" class="LineNr">248 </span>    <span class="Delimiter">}</span>
+<span id="L249" class="LineNr">249 </span>    <span class="PreProc">loop</span>
+<span id="L250" class="LineNr">250 </span>  <span class="Delimiter">}</span>
+<span id="L251" class="LineNr">251 </span>  compare ycurr, ymax
+<span id="L252" class="LineNr">252 </span>  <span class="Delimiter">{</span>
+<span id="L253" class="LineNr">253 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L254" class="LineNr">254 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L255" class="LineNr">255 </span>  <span class="Delimiter">}</span>
+<span id="L256" class="LineNr">256 </span>  <span class="muComment"># we do; actually draw</span>
+<span id="L257" class="LineNr">257 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
+<span id="L258" class="LineNr">258 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
+<span id="L259" class="LineNr">259 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
+<span id="L260" class="LineNr">260 </span>  <span class="Delimiter">{</span>
+<span id="L261" class="LineNr">261 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L262" class="LineNr">262 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L263" class="LineNr">263 </span>    <span class="PreProc">break-if-=</span>
+<span id="L264" class="LineNr">264 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color, background-color
+<span id="L265" class="LineNr">265 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L266" class="LineNr">266 </span>    compare xcurr, xmax
+<span id="L267" class="LineNr">267 </span>    <span class="Delimiter">{</span>
+<span id="L268" class="LineNr">268 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L269" class="LineNr">269 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L270" class="LineNr">270 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L271" class="LineNr">271 </span>    <span class="Delimiter">}</span>
+<span id="L272" class="LineNr">272 </span>    <span class="PreProc">loop</span>
+<span id="L273" class="LineNr">273 </span>  <span class="Delimiter">}</span>
+<span id="L274" class="LineNr">274 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
+<span id="L275" class="LineNr">275 </span>  <span class="PreProc">return</span> xcurr, ycurr
+<span id="L276" class="LineNr">276 </span><span class="Delimiter">}</span>
+<span id="L277" class="LineNr">277 </span>
+<span id="L278" class="LineNr">278 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L278'>draw-int32-hex-wrapping-right-then-down-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L279" class="LineNr">279 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L280" class="LineNr">280 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L281" class="LineNr">281 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
+<span id="L282" class="LineNr">282 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L229'>draw-int32-hex-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, x2, y2, x, y, color, background-color
+<span id="L283" class="LineNr">283 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
+<span id="L284" class="LineNr">284 </span><span class="Delimiter">}</span>
+<span id="L285" class="LineNr">285 </span>
+<span id="L286" class="LineNr">286 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L286'>draw-int32-hex-wrapping-right-then-down-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L287" class="LineNr">287 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L288" class="LineNr">288 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L289" class="LineNr">289 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L290" class="LineNr">290 </span>  <span class="PreProc">var</span> end-x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-x
+<span id="L291" class="LineNr">291 </span>  end-x <span class="SpecialChar">&lt;-</span> increment
+<span id="L292" class="LineNr">292 </span>  compare end-x, xmax
+<span id="L293" class="LineNr">293 </span>  <span class="Delimiter">{</span>
+<span id="L294" class="LineNr">294 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L295" class="LineNr">295 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L296" class="LineNr">296 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
+<span id="L297" class="LineNr">297 </span>  <span class="Delimiter">}</span>
+<span id="L298" class="LineNr">298 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L229'>draw-int32-hex-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color, background-color
+<span id="L299" class="LineNr">299 </span><span class="Delimiter">}</span>
+<span id="L300" class="LineNr">300 </span>
+<span id="L301" class="LineNr">301 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L302" class="LineNr">302 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L303" class="LineNr">303 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L304" class="LineNr">304 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L305" class="LineNr">305 </span>  <a href='501draw-text.mu.html#L286'>draw-int32-hex-wrapping-right-then-down-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, width, height, color, background-color
+<span id="L306" class="LineNr">306 </span><span class="Delimiter">}</span>
+<span id="L307" class="LineNr">307 </span>
+<span id="L308" class="LineNr">308 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L308'>draw-int32-decimal-wrapping-right-then-down</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L309" class="LineNr">309 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L310" class="LineNr">310 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L311" class="LineNr">311 </span>  <a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> stream, n
+<span id="L312" class="LineNr">312 </span>  <span class="muComment"># check if we have enough space</span>
+<span id="L313" class="LineNr">313 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L314" class="LineNr">314 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
 <span id="L315" class="LineNr">315 </span>  <span class="Delimiter">{</span>
-<span id="L316" class="LineNr">316 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L317" class="LineNr">317 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
-<span id="L318" class="LineNr">318 </span>  <span class="Delimiter">}</span>
-<span id="L319" class="LineNr">319 </span>  <span class="muComment"># we do; actually draw</span>
-<span id="L320" class="LineNr">320 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
-<span id="L321" class="LineNr">321 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
-<span id="L322" class="LineNr">322 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
-<span id="L323" class="LineNr">323 </span>  <span class="Delimiter">{</span>
-<span id="L324" class="LineNr">324 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L325" class="LineNr">325 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L326" class="LineNr">326 </span>    <span class="PreProc">break-if-=</span>
-<span id="L327" class="LineNr">327 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color
-<span id="L328" class="LineNr">328 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L329" class="LineNr">329 </span>    compare xcurr, xmax
-<span id="L330" class="LineNr">330 </span>    <span class="Delimiter">{</span>
-<span id="L331" class="LineNr">331 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L332" class="LineNr">332 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L333" class="LineNr">333 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L334" class="LineNr">334 </span>    <span class="Delimiter">}</span>
-<span id="L335" class="LineNr">335 </span>    <span class="PreProc">loop</span>
-<span id="L336" class="LineNr">336 </span>  <span class="Delimiter">}</span>
-<span id="L337" class="LineNr">337 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
-<span id="L338" class="LineNr">338 </span>  <span class="PreProc">return</span> xcurr, ycurr
-<span id="L339" class="LineNr">339 </span><span class="Delimiter">}</span>
-<span id="L340" class="LineNr">340 </span>
-<span id="L341" class="LineNr">341 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L341'>draw-int32-decimal-wrapping-right-then-down-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L342" class="LineNr">342 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L343" class="LineNr">343 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L344" class="LineNr">344 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
-<span id="L345" class="LineNr">345 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L292'>draw-int32-decimal-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>, <span class="Constant">0</span>, x2, y2, x, y, color
-<span id="L346" class="LineNr">346 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
-<span id="L347" class="LineNr">347 </span><span class="Delimiter">}</span>
-<span id="L348" class="LineNr">348 </span>
-<span id="L349" class="LineNr">349 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L349'>draw-int32-decimal-wrapping-right-then-down-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, color: int <span class="Delimiter">{</span>
-<span id="L350" class="LineNr">350 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L351" class="LineNr">351 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L352" class="LineNr">352 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L353" class="LineNr">353 </span>  <span class="PreProc">var</span> end-x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-x
-<span id="L354" class="LineNr">354 </span>  end-x <span class="SpecialChar">&lt;-</span> increment
-<span id="L355" class="LineNr">355 </span>  compare end-x, xmax
-<span id="L356" class="LineNr">356 </span>  <span class="Delimiter">{</span>
-<span id="L357" class="LineNr">357 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L358" class="LineNr">358 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
-<span id="L359" class="LineNr">359 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
-<span id="L360" class="LineNr">360 </span>  <span class="Delimiter">}</span>
-<span id="L361" class="LineNr">361 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L292'>draw-int32-decimal-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color
-<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='501draw-text.mu.html#L364'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, color: int <span class="Delimiter">{</span>
-<span id="L365" class="LineNr">365 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L366" class="LineNr">366 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L367" class="LineNr">367 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L368" class="LineNr">368 </span>  <a href='501draw-text.mu.html#L349'>draw-int32-decimal-wrapping-right-then-down-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>, <span class="Constant">0</span>, width, height, color
-<span id="L369" class="LineNr">369 </span><span class="Delimiter">}</span>
-<span id="L370" class="LineNr">370 </span>
-<span id="L371" class="LineNr">371 </span><span class="muComment">## Text direction: down then right</span>
-<span id="L372" class="LineNr">372 </span>
-<span id="L373" class="LineNr">373 </span><span class="muComment"># draw a single line of text vertically from x, y to ymax</span>
-<span id="L374" class="LineNr">374 </span><span class="muComment"># return the next 'y' coordinate</span>
-<span id="L375" class="LineNr">375 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
-<span id="L376" class="LineNr">376 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L376'>draw-text-downward</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, ymax: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L377" class="LineNr">377 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
-<span id="L378" class="LineNr">378 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
-<span id="L379" class="LineNr">379 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
-<span id="L380" class="LineNr">380 </span>  <span class="muComment"># check if we have enough space</span>
-<span id="L381" class="LineNr">381 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
-<span id="L382" class="LineNr">382 </span>  <span class="Delimiter">{</span>
-<span id="L383" class="LineNr">383 </span>    compare ycurr, ymax
-<span id="L384" class="LineNr">384 </span>    <span class="PreProc">break-if-&gt;</span>
-<span id="L385" class="LineNr">385 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L386" class="LineNr">386 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L387" class="LineNr">387 </span>    <span class="PreProc">break-if-=</span>
-<span id="L388" class="LineNr">388 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L389" class="LineNr">389 </span>    <span class="PreProc">loop</span>
-<span id="L390" class="LineNr">390 </span>  <span class="Delimiter">}</span>
-<span id="L391" class="LineNr">391 </span>  compare ycurr, ymax
-<span id="L392" class="LineNr">392 </span>  <span class="Delimiter">{</span>
-<span id="L393" class="LineNr">393 </span>    <span class="PreProc">break-if-&lt;=</span>
-<span id="L394" class="LineNr">394 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>
-<span id="L395" class="LineNr">395 </span>  <span class="Delimiter">}</span>
-<span id="L396" class="LineNr">396 </span>  <span class="muComment"># we do; actually draw</span>
-<span id="L397" class="LineNr">397 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
-<span id="L398" class="LineNr">398 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
-<span id="L399" class="LineNr">399 </span>  <span class="Delimiter">{</span>
-<span id="L400" class="LineNr">400 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L401" class="LineNr">401 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L402" class="LineNr">402 </span>    <span class="PreProc">break-if-=</span>
-<span id="L403" class="LineNr">403 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, x, ycurr, color
+<span id="L316" class="LineNr">316 </span>    compare ycurr, ymax
+<span id="L317" class="LineNr">317 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L318" class="LineNr">318 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L319" class="LineNr">319 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L320" class="LineNr">320 </span>    <span class="PreProc">break-if-=</span>
+<span id="L321" class="LineNr">321 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L322" class="LineNr">322 </span>    compare xcurr, xmax
+<span id="L323" class="LineNr">323 </span>    <span class="Delimiter">{</span>
+<span id="L324" class="LineNr">324 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L325" class="LineNr">325 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L326" class="LineNr">326 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L327" class="LineNr">327 </span>    <span class="Delimiter">}</span>
+<span id="L328" class="LineNr">328 </span>    <span class="PreProc">loop</span>
+<span id="L329" class="LineNr">329 </span>  <span class="Delimiter">}</span>
+<span id="L330" class="LineNr">330 </span>  compare ycurr, ymax
+<span id="L331" class="LineNr">331 </span>  <span class="Delimiter">{</span>
+<span id="L332" class="LineNr">332 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L333" class="LineNr">333 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L334" class="LineNr">334 </span>  <span class="Delimiter">}</span>
+<span id="L335" class="LineNr">335 </span>  <span class="muComment"># we do; actually draw</span>
+<span id="L336" class="LineNr">336 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
+<span id="L337" class="LineNr">337 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
+<span id="L338" class="LineNr">338 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
+<span id="L339" class="LineNr">339 </span>  <span class="Delimiter">{</span>
+<span id="L340" class="LineNr">340 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L341" class="LineNr">341 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L342" class="LineNr">342 </span>    <span class="PreProc">break-if-=</span>
+<span id="L343" class="LineNr">343 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color, background-color
+<span id="L344" class="LineNr">344 </span>    xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L345" class="LineNr">345 </span>    compare xcurr, xmax
+<span id="L346" class="LineNr">346 </span>    <span class="Delimiter">{</span>
+<span id="L347" class="LineNr">347 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L348" class="LineNr">348 </span>      xcurr <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L349" class="LineNr">349 </span>      ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L350" class="LineNr">350 </span>    <span class="Delimiter">}</span>
+<span id="L351" class="LineNr">351 </span>    <span class="PreProc">loop</span>
+<span id="L352" class="LineNr">352 </span>  <span class="Delimiter">}</span>
+<span id="L353" class="LineNr">353 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
+<span id="L354" class="LineNr">354 </span>  <span class="PreProc">return</span> xcurr, ycurr
+<span id="L355" class="LineNr">355 </span><span class="Delimiter">}</span>
+<span id="L356" class="LineNr">356 </span>
+<span id="L357" class="LineNr">357 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L357'>draw-int32-decimal-wrapping-right-then-down-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L358" class="LineNr">358 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L359" class="LineNr">359 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L360" class="LineNr">360 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
+<span id="L361" class="LineNr">361 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L308'>draw-int32-decimal-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, x2, y2, x, y, color, background-color
+<span id="L362" class="LineNr">362 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
+<span id="L363" class="LineNr">363 </span><span class="Delimiter">}</span>
+<span id="L364" class="LineNr">364 </span>
+<span id="L365" class="LineNr">365 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L365'>draw-int32-decimal-wrapping-right-then-down-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, xmin: int, ymin: int, xmax: int, ymax: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L366" class="LineNr">366 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L367" class="LineNr">367 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L368" class="LineNr">368 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L369" class="LineNr">369 </span>  <span class="PreProc">var</span> end-x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-x
+<span id="L370" class="LineNr">370 </span>  end-x <span class="SpecialChar">&lt;-</span> increment
+<span id="L371" class="LineNr">371 </span>  compare end-x, xmax
+<span id="L372" class="LineNr">372 </span>  <span class="Delimiter">{</span>
+<span id="L373" class="LineNr">373 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L374" class="LineNr">374 </span>    cursor-x <span class="SpecialChar">&lt;-</span> copy xmin
+<span id="L375" class="LineNr">375 </span>    cursor-y <span class="SpecialChar">&lt;-</span> increment
+<span id="L376" class="LineNr">376 </span>  <span class="Delimiter">}</span>
+<span id="L377" class="LineNr">377 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L308'>draw-int32-decimal-wrapping-right-then-down</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color, background-color
+<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='501draw-text.mu.html#L380'>draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), n: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L381" class="LineNr">381 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L382" class="LineNr">382 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L383" class="LineNr">383 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L384" class="LineNr">384 </span>  <a href='501draw-text.mu.html#L365'>draw-int32-decimal-wrapping-right-then-down-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, n, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, width, height, color, background-color
+<span id="L385" class="LineNr">385 </span><span class="Delimiter">}</span>
+<span id="L386" class="LineNr">386 </span>
+<span id="L387" class="LineNr">387 </span><span class="muComment">## Text direction: down then right</span>
+<span id="L388" class="LineNr">388 </span>
+<span id="L389" class="LineNr">389 </span><span class="muComment"># draw a single line of text vertically from x, y to ymax</span>
+<span id="L390" class="LineNr">390 </span><span class="muComment"># return the next 'y' coordinate</span>
+<span id="L391" class="LineNr">391 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
+<span id="L392" class="LineNr">392 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L392'>draw-text-downward</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, ymax: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L393" class="LineNr">393 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L394" class="LineNr">394 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L395" class="LineNr">395 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
+<span id="L396" class="LineNr">396 </span>  <span class="muComment"># check if we have enough space</span>
+<span id="L397" class="LineNr">397 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
+<span id="L398" class="LineNr">398 </span>  <span class="Delimiter">{</span>
+<span id="L399" class="LineNr">399 </span>    compare ycurr, ymax
+<span id="L400" class="LineNr">400 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L401" class="LineNr">401 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L402" class="LineNr">402 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L403" class="LineNr">403 </span>    <span class="PreProc">break-if-=</span>
 <span id="L404" class="LineNr">404 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
 <span id="L405" class="LineNr">405 </span>    <span class="PreProc">loop</span>
 <span id="L406" class="LineNr">406 </span>  <span class="Delimiter">}</span>
-<span id="L407" class="LineNr">407 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, x, ycurr
-<span id="L408" class="LineNr">408 </span>  <span class="PreProc">return</span> ycurr
-<span id="L409" class="LineNr">409 </span><span class="Delimiter">}</span>
-<span id="L410" class="LineNr">410 </span>
-<span id="L411" class="LineNr">411 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L411'>draw-text-downward-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), ymax: int, color: int <span class="Delimiter">{</span>
-<span id="L412" class="LineNr">412 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L413" class="LineNr">413 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L414" class="LineNr">414 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L415" class="LineNr">415 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L376'>draw-text-downward</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, cursor-x, cursor-y, ymax, color
-<span id="L416" class="LineNr">416 </span><span class="Delimiter">}</span>
-<span id="L417" class="LineNr">417 </span>
-<span id="L418" class="LineNr">418 </span><span class="muComment"># draw text down and right in the rectangle from (xmin, ymin) to (xmax, ymax), starting from (x, y), wrapping as necessary</span>
-<span id="L419" class="LineNr">419 </span><span class="muComment"># return the next (x, y) coordinate in raster order where drawing stopped</span>
-<span id="L420" class="LineNr">420 </span><span class="muComment"># that way the caller can draw more if given the same min and max bounding-box.</span>
-<span id="L421" class="LineNr">421 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
-<span id="L422" class="LineNr">422 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L422'>draw-text-wrapping-down-then-right</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L423" class="LineNr">423 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
-<span id="L424" class="LineNr">424 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
-<span id="L425" class="LineNr">425 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
-<span id="L426" class="LineNr">426 </span>  <span class="muComment"># check if we have enough space</span>
-<span id="L427" class="LineNr">427 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
-<span id="L428" class="LineNr">428 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
-<span id="L429" class="LineNr">429 </span>  <span class="Delimiter">{</span>
-<span id="L430" class="LineNr">430 </span>    compare xcurr, xmax
-<span id="L431" class="LineNr">431 </span>    <span class="PreProc">break-if-&gt;=</span>
-<span id="L432" class="LineNr">432 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L433" class="LineNr">433 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L434" class="LineNr">434 </span>    <span class="PreProc">break-if-=</span>
-<span id="L435" class="LineNr">435 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L436" class="LineNr">436 </span>    compare ycurr, ymax
-<span id="L437" class="LineNr">437 </span>    <span class="Delimiter">{</span>
-<span id="L438" class="LineNr">438 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L439" class="LineNr">439 </span>      xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L440" class="LineNr">440 </span>      ycurr <span class="SpecialChar">&lt;-</span> copy ymin
-<span id="L441" class="LineNr">441 </span>    <span class="Delimiter">}</span>
-<span id="L442" class="LineNr">442 </span>    <span class="PreProc">loop</span>
-<span id="L443" class="LineNr">443 </span>  <span class="Delimiter">}</span>
-<span id="L444" class="LineNr">444 </span>  compare xcurr, xmax
+<span id="L407" class="LineNr">407 </span>  compare ycurr, ymax
+<span id="L408" class="LineNr">408 </span>  <span class="Delimiter">{</span>
+<span id="L409" class="LineNr">409 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L410" class="LineNr">410 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>
+<span id="L411" class="LineNr">411 </span>  <span class="Delimiter">}</span>
+<span id="L412" class="LineNr">412 </span>  <span class="muComment"># we do; actually draw</span>
+<span id="L413" class="LineNr">413 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
+<span id="L414" class="LineNr">414 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
+<span id="L415" class="LineNr">415 </span>  <span class="Delimiter">{</span>
+<span id="L416" class="LineNr">416 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L417" class="LineNr">417 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L418" class="LineNr">418 </span>    <span class="PreProc">break-if-=</span>
+<span id="L419" class="LineNr">419 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, x, ycurr, color, background-color
+<span id="L420" class="LineNr">420 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L421" class="LineNr">421 </span>    <span class="PreProc">loop</span>
+<span id="L422" class="LineNr">422 </span>  <span class="Delimiter">}</span>
+<span id="L423" class="LineNr">423 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, x, ycurr
+<span id="L424" class="LineNr">424 </span>  <span class="PreProc">return</span> ycurr
+<span id="L425" class="LineNr">425 </span><span class="Delimiter">}</span>
+<span id="L426" class="LineNr">426 </span>
+<span id="L427" class="LineNr">427 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L427'>draw-text-downward-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), ymax: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L428" class="LineNr">428 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L429" class="LineNr">429 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L430" class="LineNr">430 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L431" class="LineNr">431 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L392'>draw-text-downward</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, cursor-x, cursor-y, ymax, color, background-color
+<span id="L432" class="LineNr">432 </span><span class="Delimiter">}</span>
+<span id="L433" class="LineNr">433 </span>
+<span id="L434" class="LineNr">434 </span><span class="muComment"># draw text down and right in the rectangle from (xmin, ymin) to (xmax, ymax), starting from (x, y), wrapping as necessary</span>
+<span id="L435" class="LineNr">435 </span><span class="muComment"># return the next (x, y) coordinate in raster order where drawing stopped</span>
+<span id="L436" class="LineNr">436 </span><span class="muComment"># that way the caller can draw more if given the same min and max bounding-box.</span>
+<span id="L437" class="LineNr">437 </span><span class="muComment"># if there isn't enough space, return 0 without modifying the screen</span>
+<span id="L438" class="LineNr">438 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L438'>draw-text-wrapping-down-then-right</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L439" class="LineNr">439 </span>  <span class="PreProc">var</span> stream-storage: (stream byte <span class="Constant">0x100</span>)
+<span id="L440" class="LineNr">440 </span>  <span class="PreProc">var</span> stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address stream-storage
+<span id="L441" class="LineNr">441 </span>  <a href='108write.subx.html#L11'>write</a> stream, text
+<span id="L442" class="LineNr">442 </span>  <span class="muComment"># check if we have enough space</span>
+<span id="L443" class="LineNr">443 </span>  <span class="PreProc">var</span> xcurr/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L444" class="LineNr">444 </span>  <span class="PreProc">var</span> ycurr/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
 <span id="L445" class="LineNr">445 </span>  <span class="Delimiter">{</span>
-<span id="L446" class="LineNr">446 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L447" class="LineNr">447 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
-<span id="L448" class="LineNr">448 </span>  <span class="Delimiter">}</span>
-<span id="L449" class="LineNr">449 </span>  <span class="muComment"># we do; actually draw</span>
-<span id="L450" class="LineNr">450 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
-<span id="L451" class="LineNr">451 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
-<span id="L452" class="LineNr">452 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
-<span id="L453" class="LineNr">453 </span>  <span class="Delimiter">{</span>
-<span id="L454" class="LineNr">454 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
-<span id="L455" class="LineNr">455 </span>    compare g, <span class="Constant">0xffffffff</span>  <span class="muComment"># end-of-file</span>
-<span id="L456" class="LineNr">456 </span>    <span class="PreProc">break-if-=</span>
-<span id="L457" class="LineNr">457 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color
-<span id="L458" class="LineNr">458 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L459" class="LineNr">459 </span>    compare ycurr, ymax
-<span id="L460" class="LineNr">460 </span>    <span class="Delimiter">{</span>
-<span id="L461" class="LineNr">461 </span>      <span class="PreProc">break-if-&lt;</span>
-<span id="L462" class="LineNr">462 </span>      xcurr <span class="SpecialChar">&lt;-</span> increment
-<span id="L463" class="LineNr">463 </span>      ycurr <span class="SpecialChar">&lt;-</span> copy ymin
-<span id="L464" class="LineNr">464 </span>    <span class="Delimiter">}</span>
-<span id="L465" class="LineNr">465 </span>    <span class="PreProc">loop</span>
-<span id="L466" class="LineNr">466 </span>  <span class="Delimiter">}</span>
-<span id="L467" class="LineNr">467 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
-<span id="L468" class="LineNr">468 </span>  <span class="PreProc">return</span> xcurr, ycurr
-<span id="L469" class="LineNr">469 </span><span class="Delimiter">}</span>
-<span id="L470" class="LineNr">470 </span>
-<span id="L471" class="LineNr">471 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L471'>draw-text-wrapping-down-then-right-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
-<span id="L472" class="LineNr">472 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L473" class="LineNr">473 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L474" class="LineNr">474 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
-<span id="L475" class="LineNr">475 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L422'>draw-text-wrapping-down-then-right</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>, <span class="Constant">0</span>, x2, y2, x, y, color
-<span id="L476" class="LineNr">476 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
-<span id="L477" class="LineNr">477 </span><span class="Delimiter">}</span>
-<span id="L478" class="LineNr">478 </span>
-<span id="L479" class="LineNr">479 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L479'>draw-text-wrapping-down-then-right-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, color: int <span class="Delimiter">{</span>
-<span id="L480" class="LineNr">480 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L481" class="LineNr">481 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L482" class="LineNr">482 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L99'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L483" class="LineNr">483 </span>  <span class="PreProc">var</span> end-y/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-y
-<span id="L484" class="LineNr">484 </span>  end-y <span class="SpecialChar">&lt;-</span> increment
-<span id="L485" class="LineNr">485 </span>  compare end-y, ymax
-<span id="L486" class="LineNr">486 </span>  <span class="Delimiter">{</span>
-<span id="L487" class="LineNr">487 </span>    <span class="PreProc">break-if-&lt;</span>
-<span id="L488" class="LineNr">488 </span>    cursor-x <span class="SpecialChar">&lt;-</span> increment
-<span id="L489" class="LineNr">489 </span>    cursor-y <span class="SpecialChar">&lt;-</span> copy ymin
-<span id="L490" class="LineNr">490 </span>  <span class="Delimiter">}</span>
-<span id="L491" class="LineNr">491 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L422'>draw-text-wrapping-down-then-right</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color
-<span id="L492" class="LineNr">492 </span><span class="Delimiter">}</span>
-<span id="L493" class="LineNr">493 </span>
-<span id="L494" class="LineNr">494 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L494'>draw-text-wrapping-down-then-right-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), color: int <span class="Delimiter">{</span>
-<span id="L495" class="LineNr">495 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L496" class="LineNr">496 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L497" class="LineNr">497 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L49'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L498" class="LineNr">498 </span>  <a href='501draw-text.mu.html#L479'>draw-text-wrapping-down-then-right-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>, <span class="Constant">0</span>, width, height, color
-<span id="L499" class="LineNr">499 </span><span class="Delimiter">}</span>
+<span id="L446" class="LineNr">446 </span>    compare xcurr, xmax
+<span id="L447" class="LineNr">447 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L448" class="LineNr">448 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L449" class="LineNr">449 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L450" class="LineNr">450 </span>    <span class="PreProc">break-if-=</span>
+<span id="L451" class="LineNr">451 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L452" class="LineNr">452 </span>    compare ycurr, ymax
+<span id="L453" class="LineNr">453 </span>    <span class="Delimiter">{</span>
+<span id="L454" class="LineNr">454 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L455" class="LineNr">455 </span>      xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L456" class="LineNr">456 </span>      ycurr <span class="SpecialChar">&lt;-</span> copy ymin
+<span id="L457" class="LineNr">457 </span>    <span class="Delimiter">}</span>
+<span id="L458" class="LineNr">458 </span>    <span class="PreProc">loop</span>
+<span id="L459" class="LineNr">459 </span>  <span class="Delimiter">}</span>
+<span id="L460" class="LineNr">460 </span>  compare xcurr, xmax
+<span id="L461" class="LineNr">461 </span>  <span class="Delimiter">{</span>
+<span id="L462" class="LineNr">462 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L463" class="LineNr">463 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L464" class="LineNr">464 </span>  <span class="Delimiter">}</span>
+<span id="L465" class="LineNr">465 </span>  <span class="muComment"># we do; actually draw</span>
+<span id="L466" class="LineNr">466 </span>  <a href='106stream.subx.html#L59'>rewind-stream</a> stream
+<span id="L467" class="LineNr">467 </span>  xcurr <span class="SpecialChar">&lt;-</span> copy x
+<span id="L468" class="LineNr">468 </span>  ycurr <span class="SpecialChar">&lt;-</span> copy y
+<span id="L469" class="LineNr">469 </span>  <span class="Delimiter">{</span>
+<span id="L470" class="LineNr">470 </span>    <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> stream
+<span id="L471" class="LineNr">471 </span>    compare g, <span class="Constant">0xffffffff</span>/end-of-file
+<span id="L472" class="LineNr">472 </span>    <span class="PreProc">break-if-=</span>
+<span id="L473" class="LineNr">473 </span>    <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, g, xcurr, ycurr, color, background-color
+<span id="L474" class="LineNr">474 </span>    ycurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L475" class="LineNr">475 </span>    compare ycurr, ymax
+<span id="L476" class="LineNr">476 </span>    <span class="Delimiter">{</span>
+<span id="L477" class="LineNr">477 </span>      <span class="PreProc">break-if-&lt;</span>
+<span id="L478" class="LineNr">478 </span>      xcurr <span class="SpecialChar">&lt;-</span> increment
+<span id="L479" class="LineNr">479 </span>      ycurr <span class="SpecialChar">&lt;-</span> copy ymin
+<span id="L480" class="LineNr">480 </span>    <span class="Delimiter">}</span>
+<span id="L481" class="LineNr">481 </span>    <span class="PreProc">loop</span>
+<span id="L482" class="LineNr">482 </span>  <span class="Delimiter">}</span>
+<span id="L483" class="LineNr">483 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>, xcurr, ycurr
+<span id="L484" class="LineNr">484 </span>  <span class="PreProc">return</span> xcurr, ycurr
+<span id="L485" class="LineNr">485 </span><span class="Delimiter">}</span>
+<span id="L486" class="LineNr">486 </span>
+<span id="L487" class="LineNr">487 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L487'>draw-text-wrapping-down-then-right-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int, _/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
+<span id="L488" class="LineNr">488 </span>  <span class="PreProc">var</span> x2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L489" class="LineNr">489 </span>  <span class="PreProc">var</span> y2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L490" class="LineNr">490 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>  <span class="muComment"># width, height</span>
+<span id="L491" class="LineNr">491 </span>  x2, y2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L438'>draw-text-wrapping-down-then-right</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, x2, y2, x, y, color, background-color
+<span id="L492" class="LineNr">492 </span>  <span class="PreProc">return</span> x2, y2  <span class="muComment"># cursor-x, cursor-y</span>
+<span id="L493" class="LineNr">493 </span><span class="Delimiter">}</span>
+<span id="L494" class="LineNr">494 </span>
+<span id="L495" class="LineNr">495 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L495'>draw-text-wrapping-down-then-right-from-cursor</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), xmin: int, ymin: int, xmax: int, ymax: int, color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L496" class="LineNr">496 </span>  <span class="PreProc">var</span> cursor-x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L497" class="LineNr">497 </span>  <span class="PreProc">var</span> cursor-y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L498" class="LineNr">498 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L117'>cursor-position</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L499" class="LineNr">499 </span>  <span class="PreProc">var</span> end-y/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy cursor-y
+<span id="L500" class="LineNr">500 </span>  end-y <span class="SpecialChar">&lt;-</span> increment
+<span id="L501" class="LineNr">501 </span>  compare end-y, ymax
+<span id="L502" class="LineNr">502 </span>  <span class="Delimiter">{</span>
+<span id="L503" class="LineNr">503 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L504" class="LineNr">504 </span>    cursor-x <span class="SpecialChar">&lt;-</span> increment
+<span id="L505" class="LineNr">505 </span>    cursor-y <span class="SpecialChar">&lt;-</span> copy ymin
+<span id="L506" class="LineNr">506 </span>  <span class="Delimiter">}</span>
+<span id="L507" class="LineNr">507 </span>  cursor-x, cursor-y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L438'>draw-text-wrapping-down-then-right</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, xmin, ymin, xmax, ymax, cursor-x, cursor-y, color, background-color
+<span id="L508" class="LineNr">508 </span><span class="Delimiter">}</span>
+<span id="L509" class="LineNr">509 </span>
+<span id="L510" class="LineNr">510 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L510'>draw-text-wrapping-down-then-right-from-cursor-over-full-screen</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), text: (addr array byte), color: int, background-color: int <span class="Delimiter">{</span>
+<span id="L511" class="LineNr">511 </span>  <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L512" class="LineNr">512 </span>  <span class="PreProc">var</span> height/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L513" class="LineNr">513 </span>  width, height <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L50'>screen-size</a> <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L514" class="LineNr">514 </span>  <a href='501draw-text.mu.html#L495'>draw-text-wrapping-down-then-right-from-cursor</a> <a href='500text-screen.mu.html#L9'>screen</a>, text, <span class="Constant">0</span>/xmin, <span class="Constant">0</span>/ymin, width, height, color, background-color
+<span id="L515" class="LineNr">515 </span><span class="Delimiter">}</span>
+<span id="L516" class="LineNr">516 </span>
+<span id="L517" class="LineNr">517 </span><span class="muComment"># hacky error-handling</span>
+<span id="L518" class="LineNr">518 </span><span class="muComment"># just go into an infinite loop</span>
+<span id="L519" class="LineNr">519 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='501draw-text.mu.html#L519'>abort</a></span> e: (addr array byte) <span class="Delimiter">{</span>
+<span id="L520" class="LineNr">520 </span>  <span class="PreProc">var</span> dummy1/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L521" class="LineNr">521 </span>  <span class="PreProc">var</span> dummy2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L522" class="LineNr">522 </span>  dummy1, dummy2 <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L199'>draw-text-wrapping-right-then-down-over-full-screen</a> <span class="Constant">0</span>/screen, e, <span class="Constant">0</span>/x, <span class="Constant">0x2f</span>/y, <span class="Constant">0xf</span>/fg=white, <span class="Constant">0xc</span>/bg=red
+<span id="L523" class="LineNr">523 </span>  <span class="Delimiter">{</span>
+<span id="L524" class="LineNr">524 </span>    <span class="PreProc">loop</span>
+<span id="L525" class="LineNr">525 </span>  <span class="Delimiter">}</span>
+<span id="L526" class="LineNr">526 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/502test.mu.html b/html/baremetal/502test.mu.html
index 00a5d854..8bce697e 100644
--- a/html/baremetal/502test.mu.html
+++ b/html/baremetal/502test.mu.html
@@ -62,20 +62,41 @@ if ('onhashchange' in window) {
 <span id="L3" class="LineNr"> 3 </span>  <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _a
 <span id="L4" class="LineNr"> 4 </span>  compare a, b
 <span id="L5" class="LineNr"> 5 </span>  <span class="Delimiter">{</span>
-<span id="L6" class="LineNr"> 6 </span>    <span class="PreProc">break-if-=</span>
-<span id="L7" class="LineNr"> 7 </span>    <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, msg, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
-<span id="L8" class="LineNr"> 8 </span>    <a href='104test.subx.html#L5'>count-test-failure</a>
-<span id="L9" class="LineNr"> 9 </span>    <span class="PreProc">return</span>
-<span id="L10" class="LineNr">10 </span>  <span class="Delimiter">}</span>
-<span id="L11" class="LineNr">11 </span>  <span class="Delimiter">{</span>
-<span id="L12" class="LineNr">12 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L13" class="LineNr">13 </span>    <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
-<span id="L14" class="LineNr">14 </span>  <span class="Delimiter">}</span>
-<span id="L15" class="LineNr">15 </span><span class="Delimiter">}</span>
-<span id="L16" class="LineNr">16 </span>
-<span id="L17" class="LineNr">17 </span><span class="PreProc">fn</span> <span class="muTest"><a href='502test.mu.html#L17'>test-check-ints-equal</a></span> <span class="Delimiter">{</span>
-<span id="L18" class="LineNr">18 </span>  <a href='502test.mu.html#L2'>check-ints-equal</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">&quot;abc&quot;</span>
-<span id="L19" class="LineNr">19 </span><span class="Delimiter">}</span>
+<span id="L6" class="LineNr"> 6 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L7" class="LineNr"> 7 </span>    <a href='501draw-text.mu.html#L222'>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="L8" class="LineNr"> 8 </span>    <span class="PreProc">return</span>
+<span id="L9" class="LineNr"> 9 </span>  <span class="Delimiter">}</span>
+<span id="L10" class="LineNr">10 </span>  <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L11" class="LineNr">11 </span>  <a href='104test.subx.html#L5'>count-test-failure</a>
+<span id="L12" class="LineNr">12 </span><span class="Delimiter">}</span>
+<span id="L13" class="LineNr">13 </span>
+<span id="L14" class="LineNr">14 </span><span class="PreProc">fn</span> <span class="muTest"><a href='502test.mu.html#L14'>test-check-ints-equal</a></span> <span class="Delimiter">{</span>
+<span id="L15" class="LineNr">15 </span>  <a href='502test.mu.html#L2'>check-ints-equal</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">&quot;abc&quot;</span>
+<span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
+<span id="L17" class="LineNr">17 </span>
+<span id="L18" class="LineNr">18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='502test.mu.html#L18'>check</a></span> _a: boolean, msg: (addr array byte) <span class="Delimiter">{</span>
+<span id="L19" class="LineNr">19 </span>  <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _a
+<span id="L20" class="LineNr">20 </span>  compare a, <span class="Constant">0</span>/false
+<span id="L21" class="LineNr">21 </span>  <span class="Delimiter">{</span>
+<span id="L22" class="LineNr">22 </span>    <span class="PreProc">break-if-=</span>
+<span id="L23" class="LineNr">23 </span>    <a href='501draw-text.mu.html#L222'>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="L24" class="LineNr">24 </span>    <span class="PreProc">return</span>
+<span id="L25" class="LineNr">25 </span>  <span class="Delimiter">}</span>
+<span id="L26" class="LineNr">26 </span>  <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L27" class="LineNr">27 </span>  <a href='104test.subx.html#L5'>count-test-failure</a>
+<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='502test.mu.html#L30'>check-not</a></span> _a: boolean, msg: (addr array byte) <span class="Delimiter">{</span>
+<span id="L31" class="LineNr">31 </span>  <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _a
+<span id="L32" class="LineNr">32 </span>  compare a, <span class="Constant">0</span>/false
+<span id="L33" class="LineNr">33 </span>  <span class="Delimiter">{</span>
+<span id="L34" class="LineNr">34 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L35" class="LineNr">35 </span>    <a href='501draw-text.mu.html#L222'>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="L36" class="LineNr">36 </span>    <span class="PreProc">return</span>
+<span id="L37" class="LineNr">37 </span>  <span class="Delimiter">}</span>
+<span id="L38" class="LineNr">38 </span>  <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L39" class="LineNr">39 </span>  <a href='104test.subx.html#L5'>count-test-failure</a>
+<span id="L40" class="LineNr">40 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/504test-screen.mu.html b/html/baremetal/504test-screen.mu.html
index edea0c33..aa3894a4 100644
--- a/html/baremetal/504test-screen.mu.html
+++ b/html/baremetal/504test-screen.mu.html
@@ -64,12 +64,12 @@ if ('onhashchange' in window) {
 <span id="L5" class="LineNr">  5 </span><span class="muComment"># Tab characters (that translate into multiple screen cells) not supported.</span>
 <span id="L6" class="LineNr">  6 </span>
 <span id="L7" class="LineNr">  7 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L7'>check-screen-row</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
-<span id="L8" class="LineNr">  8 </span>  <a href='504test-screen.mu.html#L11'>check-screen-row-from</a> <a href='500text-screen.mu.html#L9'>screen</a>, y, <span class="Constant">0</span>, expected, msg
+<span id="L8" class="LineNr">  8 </span>  <a href='504test-screen.mu.html#L11'>check-screen-row-from</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/x, y, expected, msg
 <span id="L9" class="LineNr">  9 </span><span class="Delimiter">}</span>
 <span id="L10" class="LineNr"> 10 </span>
 <span id="L11" class="LineNr"> 11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L11'>check-screen-row-from</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), x: int, y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 <span id="L12" class="LineNr"> 12 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L13" class="LineNr"> 13 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L90'>screen-cell-index</a> <a href='500text-screen.mu.html#L9'>screen</a>, y, x
+<span id="L13" class="LineNr"> 13 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> <a href='500text-screen.mu.html#L9'>screen</a>, x, y
 <span id="L14" class="LineNr"> 14 </span>  <span class="muComment"># compare 'expected' with the screen contents starting at 'idx', grapheme by grapheme</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
 <span id="L16" class="LineNr"> 16 </span>  <span class="PreProc">var</span> e-addr/<span class="Constant">edx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address e
@@ -78,7 +78,7 @@ if ('onhashchange' in window) {
 <span id="L19" class="LineNr"> 19 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
 <span id="L20" class="LineNr"> 20 </span>    compare done?, <span class="Constant">0</span>
 <span id="L21" class="LineNr"> 21 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L22" class="LineNr"> 22 </span>    <span class="PreProc">var</span> _g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L234'>screen-grapheme-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L22" class="LineNr"> 22 </span>    <span class="PreProc">var</span> _g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L251'>screen-grapheme-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
 <span id="L23" class="LineNr"> 23 </span>    <span class="PreProc">var</span> g/<span class="Constant">ebx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _g
 <span id="L24" class="LineNr"> 24 </span>    <span class="PreProc">var</span> expected-grapheme/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> e-addr
 <span id="L25" class="LineNr"> 25 </span>    <span class="muComment"># compare graphemes</span>
@@ -94,23 +94,23 @@ if ('onhashchange' in window) {
 <span id="L35" class="LineNr"> 35 </span>      compare g, expected-grapheme
 <span id="L36" class="LineNr"> 36 </span>      <span class="Delimiter">{</span>
 <span id="L37" class="LineNr"> 37 </span>        <span class="PreProc">break-if-!=</span>
-<span id="L38" class="LineNr"> 38 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
+<span id="L38" class="LineNr"> 38 </span>        <a href='501draw-text.mu.html#L222'>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="L39" class="LineNr"> 39 </span>        <span class="PreProc">break</span> $check-screen-row-from:compare-graphemes
 <span id="L40" class="LineNr"> 40 </span>      <span class="Delimiter">}</span>
 <span id="L41" class="LineNr"> 41 </span>      <span class="muComment"># otherwise print an error</span>
 <span id="L42" class="LineNr"> 42 </span>      <a href='104test.subx.html#L5'>count-test-failure</a>
-<span id="L43" class="LineNr"> 43 </span>      <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, msg, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
-<span id="L44" class="LineNr"> 44 </span>      <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>
-<span id="L45" class="LineNr"> 45 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, expected-grapheme, <span class="Constant">3</span>
-<span id="L46" class="LineNr"> 46 </span>      <a href='501draw-text.mu.html#L169'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0x80</span>  <span class="muComment"># screen-width</span>
-<span id="L47" class="LineNr"> 47 </span>      <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>
-<span id="L48" class="LineNr"> 48 </span>      <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, x, <span class="Constant">3</span>
-<span id="L49" class="LineNr"> 49 </span>      <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>
-<span id="L50" class="LineNr"> 50 </span>      <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, y, <span class="Constant">3</span>
-<span id="L51" class="LineNr"> 51 </span>      <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>
-<span id="L52" class="LineNr"> 52 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">3</span>
-<span id="L53" class="LineNr"> 53 </span>      <a href='501draw-text.mu.html#L169'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0x80</span>  <span class="muComment"># screen-width</span>
-<span id="L54" class="LineNr"> 54 </span>      <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;'&quot;</span>, <span class="Constant">3</span>
+<span id="L43" class="LineNr"> 43 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L44" class="LineNr"> 44 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L45" class="LineNr"> 45 </span>      <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, expected-grapheme, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L46" class="LineNr"> 46 </span>      <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L47" class="LineNr"> 47 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L48" class="LineNr"> 48 </span>      <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L49" class="LineNr"> 49 </span>      <a href='501draw-text.mu.html#L222'>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="L50" class="LineNr"> 50 </span>      <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L51" class="LineNr"> 51 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L52" class="LineNr"> 52 </span>      <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, g, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L53" class="LineNr"> 53 </span>      <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L54" class="LineNr"> 54 </span>      <a href='501draw-text.mu.html#L222'>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="L55" class="LineNr"> 55 </span>    <span class="Delimiter">}</span>
 <span id="L56" class="LineNr"> 56 </span>    idx <span class="SpecialChar">&lt;-</span> increment
 <span id="L57" class="LineNr"> 57 </span>    increment x
@@ -121,12 +121,12 @@ if ('onhashchange' in window) {
 <span id="L62" class="LineNr"> 62 </span><span class="muComment"># various variants by screen-cell attribute; spaces in the 'expected' data should not match the attribute</span>
 <span id="L63" class="LineNr"> 63 </span>
 <span id="L64" class="LineNr"> 64 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L64'>check-screen-row-in-color</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), fg: int, y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
-<span id="L65" class="LineNr"> 65 </span>  <a href='504test-screen.mu.html#L68'>check-screen-row-in-color-from</a> <a href='500text-screen.mu.html#L9'>screen</a>, fg, y, <span class="Constant">0</span>, expected, msg
+<span id="L65" class="LineNr"> 65 </span>  <a href='504test-screen.mu.html#L68'>check-screen-row-in-color-from</a> <a href='500text-screen.mu.html#L9'>screen</a>, fg, y, <span class="Constant">0</span>/x, expected, msg
 <span id="L66" class="LineNr"> 66 </span><span class="Delimiter">}</span>
 <span id="L67" class="LineNr"> 67 </span>
 <span id="L68" class="LineNr"> 68 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L68'>check-screen-row-in-color-from</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), fg: int, y: int, x: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
 <span id="L69" class="LineNr"> 69 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
-<span id="L70" class="LineNr"> 70 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L90'>screen-cell-index</a> <a href='500text-screen.mu.html#L9'>screen</a>, y, x
+<span id="L70" class="LineNr"> 70 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> <a href='500text-screen.mu.html#L9'>screen</a>, x, y
 <span id="L71" class="LineNr"> 71 </span>  <span class="muComment"># compare 'expected' with the screen contents starting at 'idx', grapheme by grapheme</span>
 <span id="L72" class="LineNr"> 72 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
 <span id="L73" class="LineNr"> 73 </span>  <span class="PreProc">var</span> e-addr/<span class="Constant">edx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address e
@@ -135,7 +135,7 @@ if ('onhashchange' in window) {
 <span id="L76" class="LineNr"> 76 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
 <span id="L77" class="LineNr"> 77 </span>    compare done?, <span class="Constant">0</span>
 <span id="L78" class="LineNr"> 78 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L79" class="LineNr"> 79 </span>    <span class="PreProc">var</span> _g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L234'>screen-grapheme-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L79" class="LineNr"> 79 </span>    <span class="PreProc">var</span> _g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L251'>screen-grapheme-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
 <span id="L80" class="LineNr"> 80 </span>    <span class="PreProc">var</span> g/<span class="Constant">ebx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _g
 <span id="L81" class="LineNr"> 81 </span>    <span class="PreProc">var</span> _expected-grapheme/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> e-addr
 <span id="L82" class="LineNr"> 82 </span>    <span class="PreProc">var</span> expected-grapheme/<span class="Constant">edi</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _expected-grapheme
@@ -151,7 +151,7 @@ if ('onhashchange' in window) {
 <span id="L92" class="LineNr"> 92 </span>      <span class="Delimiter">{</span>
 <span id="L93" class="LineNr"> 93 </span>        compare expected-grapheme, <span class="Constant">0x20</span>
 <span id="L94" class="LineNr"> 94 </span>        <span class="PreProc">break-if-!=</span>
-<span id="L95" class="LineNr"> 95 </span>        <span class="PreProc">var</span> color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L252'>screen-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L95" class="LineNr"> 95 </span>        <span class="PreProc">var</span> color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L269'>screen-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
 <span id="L96" class="LineNr"> 96 </span>        compare color, fg
 <span id="L97" class="LineNr"> 97 </span>        <span class="PreProc">break-if-!=</span> $check-screen-row-in-color-from:compare-cells
 <span id="L98" class="LineNr"> 98 </span>      <span class="Delimiter">}</span>
@@ -161,46 +161,46 @@ if ('onhashchange' in window) {
 <span id="L102" class="LineNr">102 </span>        compare g, expected-grapheme
 <span id="L103" class="LineNr">103 </span>        <span class="Delimiter">{</span>
 <span id="L104" class="LineNr">104 </span>          <span class="PreProc">break-if-!=</span>
-<span id="L105" class="LineNr">105 </span>          <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
+<span id="L105" class="LineNr">105 </span>          <a href='501draw-text.mu.html#L222'>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="L106" class="LineNr">106 </span>          <span class="PreProc">break</span> $check-screen-row-in-color-from:compare-graphemes
 <span id="L107" class="LineNr">107 </span>        <span class="Delimiter">}</span>
 <span id="L108" class="LineNr">108 </span>        <span class="muComment"># otherwise print an error</span>
 <span id="L109" class="LineNr">109 </span>        <a href='104test.subx.html#L5'>count-test-failure</a>
-<span id="L110" class="LineNr">110 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, msg, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
-<span id="L111" class="LineNr">111 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>
-<span id="L112" class="LineNr">112 </span>        <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, expected-grapheme, <span class="Constant">3</span>
-<span id="L113" class="LineNr">113 </span>        <a href='501draw-text.mu.html#L169'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0x80</span>  <span class="muComment"># screen-width</span>
-<span id="L114" class="LineNr">114 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>
-<span id="L115" class="LineNr">115 </span>        <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, x, <span class="Constant">3</span>
-<span id="L116" class="LineNr">116 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>
-<span id="L117" class="LineNr">117 </span>        <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, y, <span class="Constant">3</span>
-<span id="L118" class="LineNr">118 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>
-<span id="L119" class="LineNr">119 </span>        <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">3</span>
-<span id="L120" class="LineNr">120 </span>        <a href='501draw-text.mu.html#L169'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0x80</span>  <span class="muComment"># screen-width</span>
-<span id="L121" class="LineNr">121 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;'&quot;</span>, <span class="Constant">3</span>
+<span id="L110" class="LineNr">110 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L111" class="LineNr">111 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L112" class="LineNr">112 </span>        <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, expected-grapheme, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L113" class="LineNr">113 </span>        <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L114" class="LineNr">114 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L115" class="LineNr">115 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L116" class="LineNr">116 </span>        <a href='501draw-text.mu.html#L222'>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="L117" class="LineNr">117 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L118" class="LineNr">118 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L119" class="LineNr">119 </span>        <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, g, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L120" class="LineNr">120 </span>        <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L121" class="LineNr">121 </span>        <a href='501draw-text.mu.html#L222'>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="L122" class="LineNr">122 </span>      <span class="Delimiter">}</span>
 <span id="L123" class="LineNr">123 </span>      $check-screen-row-in-color-from:compare-colors: <span class="Delimiter">{</span>
-<span id="L124" class="LineNr">124 </span>        <span class="PreProc">var</span> color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L252'>screen-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L124" class="LineNr">124 </span>        <span class="PreProc">var</span> color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L269'>screen-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
 <span id="L125" class="LineNr">125 </span>        compare fg, color
 <span id="L126" class="LineNr">126 </span>        <span class="Delimiter">{</span>
 <span id="L127" class="LineNr">127 </span>          <span class="PreProc">break-if-!=</span>
-<span id="L128" class="LineNr">128 </span>          <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;.&quot;</span>, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
+<span id="L128" class="LineNr">128 </span>          <a href='501draw-text.mu.html#L222'>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="L129" class="LineNr">129 </span>          <span class="PreProc">break</span> $check-screen-row-in-color-from:compare-colors
 <span id="L130" class="LineNr">130 </span>        <span class="Delimiter">}</span>
 <span id="L131" class="LineNr">131 </span>        <span class="muComment"># otherwise print an error</span>
 <span id="L132" class="LineNr">132 </span>        <a href='104test.subx.html#L5'>count-test-failure</a>
-<span id="L133" class="LineNr">133 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, msg, <span class="Constant">3</span>  <span class="muComment"># 3=cyan</span>
-<span id="L134" class="LineNr">134 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>
-<span id="L135" class="LineNr">135 </span>        <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, expected-grapheme, <span class="Constant">3</span>
-<span id="L136" class="LineNr">136 </span>        <a href='501draw-text.mu.html#L169'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0x80</span>  <span class="muComment"># screen-width</span>
-<span id="L137" class="LineNr">137 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>
-<span id="L138" class="LineNr">138 </span>        <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, x, <span class="Constant">3</span>
-<span id="L139" class="LineNr">139 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;, &quot;</span>, <span class="Constant">3</span>
-<span id="L140" class="LineNr">140 </span>        <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, y, <span class="Constant">3</span>
-<span id="L141" class="LineNr">141 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;) in color &quot;</span>, <span class="Constant">3</span>
-<span id="L142" class="LineNr">142 </span>        <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, fg, <span class="Constant">3</span>
-<span id="L143" class="LineNr">143 </span>        <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot; but observed color &quot;</span>, <span class="Constant">3</span>
-<span id="L144" class="LineNr">144 </span>        <a href='501draw-text.mu.html#L285'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, color, <span class="Constant">3</span>
+<span id="L133" class="LineNr">133 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L134" class="LineNr">134 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L135" class="LineNr">135 </span>        <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, expected-grapheme, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L136" class="LineNr">136 </span>        <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L137" class="LineNr">137 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L138" class="LineNr">138 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L139" class="LineNr">139 </span>        <a href='501draw-text.mu.html#L222'>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="L140" class="LineNr">140 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L141" class="LineNr">141 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) in color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L142" class="LineNr">142 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, fg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L143" class="LineNr">143 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; but observed color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L144" class="LineNr">144 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, color, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
 <span id="L145" class="LineNr">145 </span>      <span class="Delimiter">}</span>
 <span id="L146" class="LineNr">146 </span>    <span class="Delimiter">}</span>
 <span id="L147" class="LineNr">147 </span>    idx <span class="SpecialChar">&lt;-</span> increment
@@ -209,22 +209,173 @@ if ('onhashchange' in window) {
 <span id="L150" class="LineNr">150 </span>  <span class="Delimiter">}</span>
 <span id="L151" class="LineNr">151 </span><span class="Delimiter">}</span>
 <span id="L152" class="LineNr">152 </span>
-<span id="L153" class="LineNr">153 </span><span class="PreProc">fn</span> <span class="muTest"><a href='504test-screen.mu.html#L153'>test-draw-single-grapheme</a></span> <span class="Delimiter">{</span>
-<span id="L154" class="LineNr">154 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L155" class="LineNr">155 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
-<span id="L156" class="LineNr">156 </span>  <a href='500text-screen.mu.html#L22'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
-<span id="L157" class="LineNr">157 </span>  <span class="PreProc">var</span> c/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x61</span>  <span class="muComment"># 'a'</span>
-<span id="L158" class="LineNr">158 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <a href='500text-screen.mu.html#L9'>screen</a>, c, <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">1</span>  <span class="muComment"># color=1</span>
-<span id="L159" class="LineNr">159 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme&quot;</span>  <span class="muComment"># top-left corner of the screen</span>
-<span id="L160" class="LineNr">160 </span><span class="Delimiter">}</span>
-<span id="L161" class="LineNr">161 </span>
-<span id="L162" class="LineNr">162 </span><span class="PreProc">fn</span> <span class="muTest"><a href='504test-screen.mu.html#L162'>test-draw-multiple-graphemes</a></span> <span class="Delimiter">{</span>
-<span id="L163" class="LineNr">163 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
-<span id="L164" class="LineNr">164 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
-<span id="L165" class="LineNr">165 </span>  <a href='500text-screen.mu.html#L22'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>, <span class="Constant">4</span>
-<span id="L166" class="LineNr">166 </span>  <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">1</span>  <span class="muComment"># color=1</span>
-<span id="L167" class="LineNr">167 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes&quot;</span>
-<span id="L168" class="LineNr">168 </span><span class="Delimiter">}</span>
+<span id="L153" class="LineNr">153 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L153'>check-screen-row-in-background-color</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), bg: int, y: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
+<span id="L154" class="LineNr">154 </span>  <a href='504test-screen.mu.html#L157'>check-screen-row-in-background-color-from</a> <a href='500text-screen.mu.html#L9'>screen</a>, bg, y, <span class="Constant">0</span>/x, expected, msg
+<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span>
+<span id="L156" class="LineNr">156 </span>
+<span id="L157" class="LineNr">157 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L157'>check-screen-row-in-background-color-from</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), bg: int, y: int, x: int, expected: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
+<span id="L158" class="LineNr">158 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L159" class="LineNr">159 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> <a href='500text-screen.mu.html#L9'>screen</a>, x, y
+<span id="L160" class="LineNr">160 </span>  <span class="muComment"># compare 'expected' with the screen contents starting at 'idx', grapheme by grapheme</span>
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
+<span id="L162" class="LineNr">162 </span>  <span class="PreProc">var</span> e-addr/<span class="Constant">edx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address e
+<span id="L163" class="LineNr">163 </span>  <a href='108write.subx.html#L11'>write</a> e-addr, expected
+<span id="L164" class="LineNr">164 </span>  <span class="Delimiter">{</span>
+<span id="L165" class="LineNr">165 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
+<span id="L166" class="LineNr">166 </span>    compare done?, <span class="Constant">0</span>
+<span id="L167" class="LineNr">167 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L168" class="LineNr">168 </span>    <span class="PreProc">var</span> _g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L251'>screen-grapheme-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L169" class="LineNr">169 </span>    <span class="PreProc">var</span> g/<span class="Constant">ebx</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _g
+<span id="L170" class="LineNr">170 </span>    <span class="PreProc">var</span> _expected-grapheme/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> e-addr
+<span id="L171" class="LineNr">171 </span>    <span class="PreProc">var</span> expected-grapheme/<span class="Constant">edi</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _expected-grapheme
+<span id="L172" class="LineNr">172 </span>    $check-screen-row-in-background-color-from:compare-cells: <span class="Delimiter">{</span>
+<span id="L173" class="LineNr">173 </span>      <span class="muComment"># if expected-grapheme is space, null grapheme is also ok</span>
+<span id="L174" class="LineNr">174 </span>      <span class="Delimiter">{</span>
+<span id="L175" class="LineNr">175 </span>        compare expected-grapheme, <span class="Constant">0x20</span>
+<span id="L176" class="LineNr">176 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L177" class="LineNr">177 </span>        compare g, <span class="Constant">0</span>
+<span id="L178" class="LineNr">178 </span>        <span class="PreProc">break-if-=</span> $check-screen-row-in-background-color-from:compare-cells
+<span id="L179" class="LineNr">179 </span>      <span class="Delimiter">}</span>
+<span id="L180" class="LineNr">180 </span>      <span class="muComment"># if expected-grapheme is space, a different background-color is ok</span>
+<span id="L181" class="LineNr">181 </span>      <span class="Delimiter">{</span>
+<span id="L182" class="LineNr">182 </span>        compare expected-grapheme, <span class="Constant">0x20</span>
+<span id="L183" class="LineNr">183 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L184" class="LineNr">184 </span>        <span class="PreProc">var</span> background-color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L288'>screen-background-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L185" class="LineNr">185 </span>        compare background-color, bg
+<span id="L186" class="LineNr">186 </span>        <span class="PreProc">break-if-!=</span> $check-screen-row-in-background-color-from:compare-cells
+<span id="L187" class="LineNr">187 </span>      <span class="Delimiter">}</span>
+<span id="L188" class="LineNr">188 </span>      <span class="muComment"># compare graphemes</span>
+<span id="L189" class="LineNr">189 </span>      $check-screen-row-in-background-color-from:compare-graphemes: <span class="Delimiter">{</span>
+<span id="L190" class="LineNr">190 </span>        <span class="muComment"># if (g == expected-grapheme) print &quot;.&quot;</span>
+<span id="L191" class="LineNr">191 </span>        compare g, expected-grapheme
+<span id="L192" class="LineNr">192 </span>        <span class="Delimiter">{</span>
+<span id="L193" class="LineNr">193 </span>          <span class="PreProc">break-if-!=</span>
+<span id="L194" class="LineNr">194 </span>          <a href='501draw-text.mu.html#L222'>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="L195" class="LineNr">195 </span>          <span class="PreProc">break</span> $check-screen-row-in-background-color-from:compare-graphemes
+<span id="L196" class="LineNr">196 </span>        <span class="Delimiter">}</span>
+<span id="L197" class="LineNr">197 </span>        <span class="muComment"># otherwise print an error</span>
+<span id="L198" class="LineNr">198 </span>        <a href='104test.subx.html#L5'>count-test-failure</a>
+<span id="L199" class="LineNr">199 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L200" class="LineNr">200 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L201" class="LineNr">201 </span>        <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, expected-grapheme, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L202" class="LineNr">202 </span>        <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L203" class="LineNr">203 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L204" class="LineNr">204 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L205" class="LineNr">205 </span>        <a href='501draw-text.mu.html#L222'>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="L206" class="LineNr">206 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L207" class="LineNr">207 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) but observed '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L208" class="LineNr">208 </span>        <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, g, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L209" class="LineNr">209 </span>        <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L210" class="LineNr">210 </span>        <a href='501draw-text.mu.html#L222'>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="L211" class="LineNr">211 </span>      <span class="Delimiter">}</span>
+<span id="L212" class="LineNr">212 </span>      $check-screen-row-in-background-color-from:compare-background-colors: <span class="Delimiter">{</span>
+<span id="L213" class="LineNr">213 </span>        <span class="PreProc">var</span> background-color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L288'>screen-background-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L214" class="LineNr">214 </span>        compare bg, background-color
+<span id="L215" class="LineNr">215 </span>        <span class="Delimiter">{</span>
+<span id="L216" class="LineNr">216 </span>          <span class="PreProc">break-if-!=</span>
+<span id="L217" class="LineNr">217 </span>          <a href='501draw-text.mu.html#L222'>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="L218" class="LineNr">218 </span>          <span class="PreProc">break</span> $check-screen-row-in-background-color-from:compare-background-colors
+<span id="L219" class="LineNr">219 </span>        <span class="Delimiter">}</span>
+<span id="L220" class="LineNr">220 </span>        <span class="muComment"># otherwise print an error</span>
+<span id="L221" class="LineNr">221 </span>        <a href='104test.subx.html#L5'>count-test-failure</a>
+<span id="L222" class="LineNr">222 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L223" class="LineNr">223 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected '&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L224" class="LineNr">224 </span>        <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, expected-grapheme, <span class="Constant">3</span>/cyan, <span class="Constant">0</span>/bg
+<span id="L225" class="LineNr">225 </span>        <a href='501draw-text.mu.html#L185'>move-cursor-rightward-and-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>/xmin, <span class="Constant">0x80</span>/xmax=screen-width
+<span id="L226" class="LineNr">226 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;' at (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L227" class="LineNr">227 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L228" class="LineNr">228 </span>        <a href='501draw-text.mu.html#L222'>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="L229" class="LineNr">229 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L230" class="LineNr">230 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) in background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L231" class="LineNr">231 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, bg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L232" class="LineNr">232 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; but observed background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L233" class="LineNr">233 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, background-color, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L234" class="LineNr">234 </span>      <span class="Delimiter">}</span>
+<span id="L235" class="LineNr">235 </span>    <span class="Delimiter">}</span>
+<span id="L236" class="LineNr">236 </span>    idx <span class="SpecialChar">&lt;-</span> increment
+<span id="L237" class="LineNr">237 </span>    increment x
+<span id="L238" class="LineNr">238 </span>    <span class="PreProc">loop</span>
+<span id="L239" class="LineNr">239 </span>  <span class="Delimiter">}</span>
+<span id="L240" class="LineNr">240 </span><span class="Delimiter">}</span>
+<span id="L241" class="LineNr">241 </span>
+<span id="L242" class="LineNr">242 </span><span class="muComment"># helpers for checking just background color, not screen contents</span>
+<span id="L243" class="LineNr">243 </span><span class="muComment"># these can validate bg for spaces</span>
+<span id="L244" class="LineNr">244 </span>
+<span id="L245" class="LineNr">245 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L245'>check-background-color-in-screen-row</a></span> <a href='500text-screen.mu.html#L9'>screen</a>: (addr <a href='500text-screen.mu.html#L9'>screen</a>), bg: int, y: int, expected-bitmap: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
+<span id="L246" class="LineNr">246 </span>  <a href='504test-screen.mu.html#L249'>check-background-color-in-screen-row-from</a> <a href='500text-screen.mu.html#L9'>screen</a>, bg, y, <span class="Constant">0</span>/x, expected-bitmap, msg
+<span id="L247" class="LineNr">247 </span><span class="Delimiter">}</span>
+<span id="L248" class="LineNr">248 </span>
+<span id="L249" class="LineNr">249 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='504test-screen.mu.html#L249'>check-background-color-in-screen-row-from</a></span> screen-on-stack: (addr <a href='500text-screen.mu.html#L9'>screen</a>), bg: int, y: int, x: int, expected-bitmap: (addr array byte), msg: (addr array byte) <span class="Delimiter">{</span>
+<span id="L250" class="LineNr">250 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> copy screen-on-stack
+<span id="L251" class="LineNr">251 </span>  <span class="PreProc">var</span> idx/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L100'>screen-cell-index</a> <a href='500text-screen.mu.html#L9'>screen</a>, x, y
+<span id="L252" class="LineNr">252 </span>  <span class="muComment"># compare background color where 'expected-bitmap' is a non-space</span>
+<span id="L253" class="LineNr">253 </span>  <span class="PreProc">var</span> e: (stream byte <span class="Constant">0x100</span>)
+<span id="L254" class="LineNr">254 </span>  <span class="PreProc">var</span> e-addr/<span class="Constant">edx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address e
+<span id="L255" class="LineNr">255 </span>  <a href='108write.subx.html#L11'>write</a> e-addr, expected-bitmap
+<span id="L256" class="LineNr">256 </span>  <span class="Delimiter">{</span>
+<span id="L257" class="LineNr">257 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> e-addr
+<span id="L258" class="LineNr">258 </span>    compare done?, <span class="Constant">0</span>
+<span id="L259" class="LineNr">259 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L260" class="LineNr">260 </span>    <span class="PreProc">var</span> _expected-bit/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='403unicode.mu.html#L92'>read-grapheme</a> e-addr
+<span id="L261" class="LineNr">261 </span>    <span class="PreProc">var</span> expected-bit/<span class="Constant">edi</span>: grapheme <span class="SpecialChar">&lt;-</span> copy _expected-bit
+<span id="L262" class="LineNr">262 </span>    $check-background-color-in-screen-row-from:compare-cells: <span class="Delimiter">{</span>
+<span id="L263" class="LineNr">263 </span>      <span class="PreProc">var</span> background-color/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='500text-screen.mu.html#L288'>screen-background-color-at-idx</a> <a href='500text-screen.mu.html#L9'>screen</a>, idx
+<span id="L264" class="LineNr">264 </span>      <span class="muComment"># if expected-bit is space, assert that background is NOT bg</span>
+<span id="L265" class="LineNr">265 </span>      compare expected-bit, <span class="Constant">0x20</span>
+<span id="L266" class="LineNr">266 </span>      <span class="Delimiter">{</span>
+<span id="L267" class="LineNr">267 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L268" class="LineNr">268 </span>        compare background-color, bg
+<span id="L269" class="LineNr">269 </span>        <span class="PreProc">break-if-!=</span> $check-background-color-in-screen-row-from:compare-cells
+<span id="L270" class="LineNr">270 </span>        <a href='104test.subx.html#L5'>count-test-failure</a>
+<span id="L271" class="LineNr">271 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L272" class="LineNr">272 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L273" class="LineNr">273 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L274" class="LineNr">274 </span>        <a href='501draw-text.mu.html#L222'>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="L275" class="LineNr">275 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L276" class="LineNr">276 </span>        <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) to not be in background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L277" class="LineNr">277 </span>        <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, bg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L278" class="LineNr">278 </span>        <span class="PreProc">break</span> $check-background-color-in-screen-row-from:compare-cells
+<span id="L279" class="LineNr">279 </span>      <span class="Delimiter">}</span>
+<span id="L280" class="LineNr">280 </span>      <span class="muComment"># otherwise assert that background IS bg</span>
+<span id="L281" class="LineNr">281 </span>      compare background-color, bg
+<span id="L282" class="LineNr">282 </span>      <span class="PreProc">break-if-=</span> $check-background-color-in-screen-row-from:compare-cells
+<span id="L283" class="LineNr">283 </span>      <a href='104test.subx.html#L5'>count-test-failure</a>
+<span id="L284" class="LineNr">284 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, msg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L285" class="LineNr">285 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;: expected (&quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L286" class="LineNr">286 </span>      <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, x, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L287" class="LineNr">287 </span>      <a href='501draw-text.mu.html#L222'>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="L288" class="LineNr">288 </span>      <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L289" class="LineNr">289 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;) in background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L290" class="LineNr">290 </span>      <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, bg, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L291" class="LineNr">291 </span>      <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot; but observed background-color &quot;</span>, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L292" class="LineNr">292 </span>      <a href='501draw-text.mu.html#L301'>draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, background-color, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L293" class="LineNr">293 </span>    <span class="Delimiter">}</span>
+<span id="L294" class="LineNr">294 </span>    idx <span class="SpecialChar">&lt;-</span> increment
+<span id="L295" class="LineNr">295 </span>    increment x
+<span id="L296" class="LineNr">296 </span>    <span class="PreProc">loop</span>
+<span id="L297" class="LineNr">297 </span>  <span class="Delimiter">}</span>
+<span id="L298" class="LineNr">298 </span><span class="Delimiter">}</span>
+<span id="L299" class="LineNr">299 </span>
+<span id="L300" class="LineNr">300 </span><span class="PreProc">fn</span> <span class="muTest"><a href='504test-screen.mu.html#L300'>test-draw-single-grapheme</a></span> <span class="Delimiter">{</span>
+<span id="L301" class="LineNr">301 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L302" class="LineNr">302 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L303" class="LineNr">303 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">4</span>
+<span id="L304" class="LineNr">304 </span>  <a href='500text-screen.mu.html#L94'>draw-code-point</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x61</span>/a, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">1</span>/fg, <span class="Constant">2</span>/bg
+<span id="L305" class="LineNr">305 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme&quot;</span>  <span class="muComment"># top-left corner of the screen</span>
+<span id="L306" class="LineNr">306 </span>  <a href='504test-screen.mu.html#L64'>check-screen-row-in-color</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/fg, <span class="Constant">0</span>/y, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme-fg&quot;</span>
+<span id="L307" class="LineNr">307 </span>  <a href='504test-screen.mu.html#L153'>check-screen-row-in-background-color</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/bg, <span class="Constant">0</span>/y, <span class="Constant">&quot;a&quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme-bg&quot;</span>
+<span id="L308" class="LineNr">308 </span>  <a href='504test-screen.mu.html#L245'>check-background-color-in-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/bg, <span class="Constant">0</span>/y, <span class="Constant">&quot;x &quot;</span>, <span class="Constant">&quot;F - test-draw-single-grapheme-bg2&quot;</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="muTest"><a href='504test-screen.mu.html#L311'>test-draw-multiple-graphemes</a></span> <span class="Delimiter">{</span>
+<span id="L312" class="LineNr">312 </span>  <span class="PreProc">var</span> screen-on-stack: <a href='500text-screen.mu.html#L9'>screen</a>
+<span id="L313" class="LineNr">313 </span>  <span class="PreProc">var</span> <a href='500text-screen.mu.html#L9'>screen</a>/<span class="Constant">esi</span>: (addr <a href='500text-screen.mu.html#L9'>screen</a>) <span class="SpecialChar">&lt;-</span> address screen-on-stack
+<span id="L314" class="LineNr">314 </span>  <a href='500text-screen.mu.html#L23'>initialize-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0x10</span>/rows, <span class="Constant">4</span>/cols
+<span id="L315" class="LineNr">315 </span>  <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">1</span>/fg, <span class="Constant">2</span>/bg
+<span id="L316" class="LineNr">316 </span>  <a href='504test-screen.mu.html#L7'>check-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">0</span>/y, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes&quot;</span>
+<span id="L317" class="LineNr">317 </span>  <a href='504test-screen.mu.html#L64'>check-screen-row-in-color</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>/fg, <span class="Constant">0</span>/y, <span class="Constant">&quot;Hello, 世界&quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes-fg&quot;</span>
+<span id="L318" class="LineNr">318 </span>  <a href='504test-screen.mu.html#L245'>check-background-color-in-screen-row</a> <a href='500text-screen.mu.html#L9'>screen</a>, <span class="Constant">2</span>/bg, <span class="Constant">0</span>/y, <span class="Constant">&quot;xxxxxxxxx &quot;</span>, <span class="Constant">&quot;F - test-draw-multiple-graphemes-bg2&quot;</span>
+<span id="L319" class="LineNr">319 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/boot.hex.html b/html/baremetal/boot.hex.html
index fc47698f..bbcd38e1 100644
--- a/html/baremetal/boot.hex.html
+++ b/html/baremetal/boot.hex.html
@@ -120,7 +120,7 @@ if ('onhashchange' in window) {
 <span id="L65" class="LineNr">  65 </span><span class="subxComment">#   offset 1800 (address 9400): entrypoint for applications (don't forget to adjust survey_baremetal if this changes)</span>
 <span id="L66" class="LineNr">  66 </span>
 <span id="L67" class="LineNr">  67 </span><span class="subxComment"># Other details of the current memory map:</span>
-<span id="L68" class="LineNr">  68 </span><span class="subxComment">#   code: first two default-sized disk tracks get loaded to [0x00007c00, 0x00017800)</span>
+<span id="L68" class="LineNr">  68 </span><span class="subxComment">#   code: 4 tracks of disk to [0x00007c00, 0x00027400)</span>
 <span id="L69" class="LineNr">  69 </span><span class="subxComment">#   stack grows down from 0x00070000</span>
 <span id="L70" class="LineNr">  70 </span><span class="subxComment">#     see below</span>
 <span id="L71" class="LineNr">  71 </span><span class="subxComment">#   heap: [0x01000000, 0x02000000)</span>
@@ -162,7 +162,7 @@ if ('onhashchange' in window) {
 <span id="L107" class="LineNr"> 107 </span>  b5 00  <span class="subxComment"># ch &lt;- 0  # cylinder 0</span>
 <span id="L108" class="LineNr"> 108 </span>  b6 00  <span class="subxComment"># dh &lt;- 0  # track 0</span>
 <span id="L109" class="LineNr"> 109 </span>  b1 02  <span class="subxComment"># cl &lt;- 2  # second sector, 1-based</span>
-<span id="L110" class="LineNr"> 110 </span>  b0 7d  <span class="subxComment"># al &lt;- 125  # number of sectors to read</span>
+<span id="L110" class="LineNr"> 110 </span>  b0 7d  <span class="subxComment"># al &lt;- 125  # number of sectors to read = 2*63 - 1</span>
 <span id="L111" class="LineNr"> 111 </span>  <span class="subxComment"># address to write sectors to = es:bx = 0x7e00, contiguous with boot segment</span>
 <span id="L112" class="LineNr"> 112 </span>  bb 00 00  <span class="subxComment"># bx &lt;- 0</span>
 <span id="L113" class="LineNr"> 113 </span>  8e c3  <span class="subxComment"># es &lt;- bx</span>
@@ -171,394 +171,419 @@ if ('onhashchange' in window) {
 <span id="L116" class="LineNr"> 116 </span>  0f 82 a3 00  <span class="subxComment"># jump-if-carry disk_error [label]</span>
 <span id="L117" class="LineNr"> 117 </span>
 <span id="L118" class="LineNr"> 118 </span><span class="subxComment"># 2c:</span>
-<span id="L119" class="LineNr"> 119 </span>  <span class="subxComment"># undo the A20 hack: <a href="https://en.wikipedia.org/wiki/A20_line">https://en.wikipedia.org/wiki/A20_line</a></span>
-<span id="L120" class="LineNr"> 120 </span>  <span class="subxComment"># this is from <a href="https://github.com/mit-pdos/xv6-public/blob/master/bootasm.S">https://github.com/mit-pdos/xv6-public/blob/master/bootasm.S</a></span>
-<span id="L121" class="LineNr"> 121 </span>  <span class="subxComment"># seta20.1:</span>
-<span id="L122" class="LineNr"> 122 </span>  e4 64  <span class="subxComment"># al &lt;- port 0x64</span>
-<span id="L123" class="LineNr"> 123 </span>  a8 02  <span class="subxComment"># set zf if bit 1 (second-least significant) is not set</span>
-<span id="L124" class="LineNr"> 124 </span>  75 fa  <span class="subxComment"># if zf not set, goto seta20.1 (-6)</span>
-<span id="L125" class="LineNr"> 125 </span>
-<span id="L126" class="LineNr"> 126 </span>  b0 d1  <span class="subxComment"># al &lt;- 0xd1</span>
-<span id="L127" class="LineNr"> 127 </span>  e6 64  <span class="subxComment"># port 0x64 &lt;- al</span>
-<span id="L128" class="LineNr"> 128 </span>
-<span id="L129" class="LineNr"> 129 </span><span class="subxComment"># 36:</span>
-<span id="L130" class="LineNr"> 130 </span>  <span class="subxComment"># seta20.2:</span>
-<span id="L131" class="LineNr"> 131 </span>  e4 64  <span class="subxComment"># al &lt;- port 0x64</span>
-<span id="L132" class="LineNr"> 132 </span>  a8 02  <span class="subxComment"># set zf if bit 1 (second-least significant) is not set</span>
-<span id="L133" class="LineNr"> 133 </span>  75 fa  <span class="subxComment"># if zf not set, goto seta20.2 (-6)</span>
-<span id="L134" class="LineNr"> 134 </span>
-<span id="L135" class="LineNr"> 135 </span>  b0 df  <span class="subxComment"># al &lt;- 0xdf</span>
-<span id="L136" class="LineNr"> 136 </span>  e6 64  <span class="subxComment"># port 0x64 &lt;- al</span>
-<span id="L137" class="LineNr"> 137 </span>
-<span id="L138" class="LineNr"> 138 </span><span class="subxComment"># 40:</span>
-<span id="L139" class="LineNr"> 139 </span>  <span class="subxComment"># adjust video mode</span>
-<span id="L140" class="LineNr"> 140 </span>  b4 4f  <span class="subxComment"># ah &lt;- 4f (VBE)</span>
-<span id="L141" class="LineNr"> 141 </span>  b0 02  <span class="subxComment"># al &lt;- 02 (set video mode)</span>
-<span id="L142" class="LineNr"> 142 </span>  bb 05 41  <span class="subxComment"># bx &lt;- 0x0105 (graphics 1024x768x256</span>
-<span id="L143" class="LineNr"> 143 </span>            <span class="subxComment">#               0x4000 bit = configure linear frame buffer in Bochs emulator; hopefully this doesn't hurt anything when running natively)</span>
-<span id="L144" class="LineNr"> 144 </span>            <span class="subxComment"># fallback mode: 0x0101 (640x480x256)</span>
-<span id="L145" class="LineNr"> 145 </span>  cd 10  <span class="subxComment"># int 10h, Vesa BIOS extensions</span>
+<span id="L119" class="LineNr"> 119 </span>  <span class="subxComment"># load two more tracks of disk into addresses [0x17800, 0x27400)</span>
+<span id="L120" class="LineNr"> 120 </span>  b4 02  <span class="subxComment"># ah &lt;- 2  # read sectors from disk</span>
+<span id="L121" class="LineNr"> 121 </span>  <span class="subxComment"># dl comes conveniently initialized at boot time with the index of the device being booted</span>
+<span id="L122" class="LineNr"> 122 </span>  b5 00  <span class="subxComment"># ch &lt;- 0  # cylinder 0</span>
+<span id="L123" class="LineNr"> 123 </span>  b6 02  <span class="subxComment"># dh &lt;- 2  # track 0</span>
+<span id="L124" class="LineNr"> 124 </span>  b1 01  <span class="subxComment"># cl &lt;- 1  # first sector, 1-based</span>
+<span id="L125" class="LineNr"> 125 </span>  b0 7e  <span class="subxComment"># al &lt;- 126  # number of sectors to read = 2*63</span>
+<span id="L126" class="LineNr"> 126 </span>  <span class="subxComment"># address to write sectors to = es:bx = 0x17800</span>
+<span id="L127" class="LineNr"> 127 </span>  bb 80 17  <span class="subxComment"># bx &lt;- 0x1780 [label]</span>
+<span id="L128" class="LineNr"> 128 </span>  8e c3  <span class="subxComment"># es &lt;- bx</span>
+<span id="L129" class="LineNr"> 129 </span>  bb 00 00  <span class="subxComment"># bx &lt;- 0</span>
+<span id="L130" class="LineNr"> 130 </span>  cd 13  <span class="subxComment"># int 13h, BIOS disk service</span>
+<span id="L131" class="LineNr"> 131 </span>  0f 82 9b 00  <span class="subxComment"># jump-if-carry disk_error [label]</span>
+<span id="L132" class="LineNr"> 132 </span>  <span class="subxComment"># reset es</span>
+<span id="L133" class="LineNr"> 133 </span>  bb 00 00  <span class="subxComment"># bx &lt;- 0</span>
+<span id="L134" class="LineNr"> 134 </span>  8e c3  <span class="subxComment"># es &lt;- bx</span>
+<span id="L135" class="LineNr"> 135 </span>
+<span id="L136" class="LineNr"> 136 </span><span class="subxComment"># 39:</span>
+<span id="L137" class="LineNr"> 137 </span>  <span class="subxComment"># undo the A20 hack: <a href="https://en.wikipedia.org/wiki/A20_line">https://en.wikipedia.org/wiki/A20_line</a></span>
+<span id="L138" class="LineNr"> 138 </span>  <span class="subxComment"># this is from <a href="https://github.com/mit-pdos/xv6-public/blob/master/bootasm.S">https://github.com/mit-pdos/xv6-public/blob/master/bootasm.S</a></span>
+<span id="L139" class="LineNr"> 139 </span>  <span class="subxComment"># seta20.1:</span>
+<span id="L140" class="LineNr"> 140 </span>  e4 64  <span class="subxComment"># al &lt;- port 0x64</span>
+<span id="L141" class="LineNr"> 141 </span>  a8 02  <span class="subxComment"># set zf if bit 1 (second-least significant) is not set</span>
+<span id="L142" class="LineNr"> 142 </span>  75 fa  <span class="subxComment"># if zf not set, goto seta20.1 (-6)</span>
+<span id="L143" class="LineNr"> 143 </span>
+<span id="L144" class="LineNr"> 144 </span>  b0 d1  <span class="subxComment"># al &lt;- 0xd1</span>
+<span id="L145" class="LineNr"> 145 </span>  e6 64  <span class="subxComment"># port 0x64 &lt;- al</span>
 <span id="L146" class="LineNr"> 146 </span>
-<span id="L147" class="LineNr"> 147 </span><span class="subxComment"># 49:</span>
-<span id="L148" class="LineNr"> 148 </span>  <span class="subxComment"># load information for the (hopefully) current video mode</span>
-<span id="L149" class="LineNr"> 149 </span>  <span class="subxComment"># mostly just for the address to the linear frame buffer</span>
-<span id="L150" class="LineNr"> 150 </span>  b4 4f  <span class="subxComment"># ah &lt;- 4f (VBE)</span>
-<span id="L151" class="LineNr"> 151 </span>  b0 01  <span class="subxComment"># al &lt;- 01 (get video mode)</span>
-<span id="L152" class="LineNr"> 152 </span>  b9 07 01  <span class="subxComment"># cx &lt;- 0x0107 (mode we requested)</span>
-<span id="L153" class="LineNr"> 153 </span>  bf 00 81  <span class="subxComment"># di &lt;- 0x7f00 (video mode info) [label]</span>
-<span id="L154" class="LineNr"> 154 </span>  cd 10
+<span id="L147" class="LineNr"> 147 </span><span class="subxComment"># 43:</span>
+<span id="L148" class="LineNr"> 148 </span>  <span class="subxComment"># seta20.2:</span>
+<span id="L149" class="LineNr"> 149 </span>  e4 64  <span class="subxComment"># al &lt;- port 0x64</span>
+<span id="L150" class="LineNr"> 150 </span>  a8 02  <span class="subxComment"># set zf if bit 1 (second-least significant) is not set</span>
+<span id="L151" class="LineNr"> 151 </span>  75 fa  <span class="subxComment"># if zf not set, goto seta20.2 (-6)</span>
+<span id="L152" class="LineNr"> 152 </span>
+<span id="L153" class="LineNr"> 153 </span>  b0 df  <span class="subxComment"># al &lt;- 0xdf</span>
+<span id="L154" class="LineNr"> 154 </span>  e6 64  <span class="subxComment"># port 0x64 &lt;- al</span>
 <span id="L155" class="LineNr"> 155 </span>
-<span id="L156" class="LineNr"> 156 </span><span class="subxComment"># 55:</span>
-<span id="L157" class="LineNr"> 157 </span>  <span class="subxComment"># switch to 32-bit mode</span>
-<span id="L158" class="LineNr"> 158 </span>  0f 01 16  <span class="subxComment"># lgdt 00/mod/indirect 010/subop 110/rm/use-disp16</span>
-<span id="L159" class="LineNr"> 159 </span>    f8 7c  <span class="subxComment"># *gdt_descriptor [label]</span>
-<span id="L160" class="LineNr"> 160 </span>  0f 20 c0  <span class="subxComment"># eax &lt;- cr0</span>
-<span id="L161" class="LineNr"> 161 </span>  66 83 c8 01  <span class="subxComment"># eax &lt;- or 0x1</span>
-<span id="L162" class="LineNr"> 162 </span>  0f 22 c0  <span class="subxComment"># cr0 &lt;- eax</span>
-<span id="L163" class="LineNr"> 163 </span>  ea 00 7d 08 00  <span class="subxComment"># far jump to initialize_32bit_mode after setting cs to the record at offset 8 in the gdt (gdt_code) [label]</span>
+<span id="L156" class="LineNr"> 156 </span><span class="subxComment"># 4d:</span>
+<span id="L157" class="LineNr"> 157 </span>  <span class="subxComment"># adjust video mode</span>
+<span id="L158" class="LineNr"> 158 </span>  b4 4f  <span class="subxComment"># ah &lt;- 4f (VBE)</span>
+<span id="L159" class="LineNr"> 159 </span>  b0 02  <span class="subxComment"># al &lt;- 02 (set video mode)</span>
+<span id="L160" class="LineNr"> 160 </span>  bb 05 41  <span class="subxComment"># bx &lt;- 0x0105 (graphics 1024x768x256</span>
+<span id="L161" class="LineNr"> 161 </span>            <span class="subxComment">#               0x4000 bit = configure linear frame buffer in Bochs emulator; hopefully this doesn't hurt anything when running natively)</span>
+<span id="L162" class="LineNr"> 162 </span>            <span class="subxComment"># fallback mode: 0x0101 (640x480x256)</span>
+<span id="L163" class="LineNr"> 163 </span>  cd 10  <span class="subxComment"># int 10h, Vesa BIOS extensions</span>
 <span id="L164" class="LineNr"> 164 </span>
-<span id="L165" class="LineNr"> 165 </span><span class="subxComment"># padding</span>
-<span id="L166" class="LineNr"> 166 </span><span class="subxComment"># 69:</span>
-<span id="L167" class="LineNr"> 167 </span>                           00 00 00 00 00 00 00
-<span id="L168" class="LineNr"> 168 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L169" class="LineNr"> 169 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L170" class="LineNr"> 170 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L171" class="LineNr"> 171 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L172" class="LineNr"> 172 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L173" class="LineNr"> 173 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L174" class="LineNr"> 174 </span>
-<span id="L175" class="LineNr"> 175 </span><span class="subxComment"># cf:</span>
-<span id="L176" class="LineNr"> 176 </span><span class="subxComment"># disk_error:</span>
-<span id="L177" class="LineNr"> 177 </span>  <span class="subxComment"># print 'D' to top-left of screen to indicate disk error</span>
-<span id="L178" class="LineNr"> 178 </span>  <span class="subxComment"># *0xb8000 &lt;- 0x0f44</span>
-<span id="L179" class="LineNr"> 179 </span>  <span class="subxComment"># bx &lt;- 0xb800</span>
-<span id="L180" class="LineNr"> 180 </span>  bb 00 b8
-<span id="L181" class="LineNr"> 181 </span>  <span class="subxComment"># ds &lt;- bx</span>
-<span id="L182" class="LineNr"> 182 </span>  8e db  <span class="subxComment"># 11b/mod 011b/reg/ds 011b/rm/bx</span>
-<span id="L183" class="LineNr"> 183 </span>  <span class="subxComment"># al &lt;- 'D'</span>
-<span id="L184" class="LineNr"> 184 </span>  b0 44
-<span id="L185" class="LineNr"> 185 </span>  <span class="subxComment"># ah &lt;- 0x0f  # white on black</span>
-<span id="L186" class="LineNr"> 186 </span>  b4 0f
-<span id="L187" class="LineNr"> 187 </span>  <span class="subxComment"># bx &lt;- 0</span>
-<span id="L188" class="LineNr"> 188 </span>  bb 00 00
-<span id="L189" class="LineNr"> 189 </span>  <span class="subxComment"># *ds:bx &lt;- ax</span>
-<span id="L190" class="LineNr"> 190 </span>  89 07  <span class="subxComment"># 00b/mod/indirect 000b/reg/ax 111b/rm/bx</span>
-<span id="L191" class="LineNr"> 191 </span>
-<span id="L192" class="LineNr"> 192 </span>e9 fd ff  <span class="subxComment"># loop forever</span>
-<span id="L193" class="LineNr"> 193 </span>
-<span id="L194" class="LineNr"> 194 </span><span class="subxComment">## GDT: 3 records of 8 bytes each</span>
-<span id="L195" class="LineNr"> 195 </span>
-<span id="L196" class="LineNr"> 196 </span><span class="subxComment"># e0:</span>
-<span id="L197" class="LineNr"> 197 </span><span class="subxComment"># gdt_start:</span>
-<span id="L198" class="LineNr"> 198 </span><span class="subxComment"># gdt_null:  mandatory null descriptor</span>
-<span id="L199" class="LineNr"> 199 </span>  00 00 00 00 00 00 00 00
-<span id="L200" class="LineNr"> 200 </span><span class="subxComment"># gdt_code:  (offset 8 from gdt_start)</span>
-<span id="L201" class="LineNr"> 201 </span>  ff ff  <span class="subxComment"># limit[0:16]</span>
-<span id="L202" class="LineNr"> 202 </span>  00 00 00  <span class="subxComment"># base[0:24]</span>
-<span id="L203" class="LineNr"> 203 </span>  9a  <span class="subxComment"># 1/present 00/privilege 1/descriptor type = 1001b</span>
-<span id="L204" class="LineNr"> 204 </span>      <span class="subxComment"># 1/code 0/conforming 1/readable 0/accessed = 1010b</span>
-<span id="L205" class="LineNr"> 205 </span>  cf  <span class="subxComment"># 1/granularity 1/32-bit 0/64-bit-segment 0/AVL = 1100b</span>
-<span id="L206" class="LineNr"> 206 </span>      <span class="subxComment"># limit[16:20] = 1111b</span>
-<span id="L207" class="LineNr"> 207 </span>  00  <span class="subxComment"># base[24:32]</span>
-<span id="L208" class="LineNr"> 208 </span><span class="subxComment"># gdt_data:  (offset 16 from gdt_start)</span>
-<span id="L209" class="LineNr"> 209 </span>  ff ff  <span class="subxComment"># limit[0:16]</span>
-<span id="L210" class="LineNr"> 210 </span>  00 00 00  <span class="subxComment"># base[0:24]</span>
-<span id="L211" class="LineNr"> 211 </span>  92  <span class="subxComment"># 1/present 00/privilege 1/descriptor type = 1001b</span>
-<span id="L212" class="LineNr"> 212 </span>      <span class="subxComment"># 0/data 0/conforming 1/readable 0/accessed = 0010b</span>
-<span id="L213" class="LineNr"> 213 </span>  cf  <span class="subxComment"># same as gdt_code</span>
-<span id="L214" class="LineNr"> 214 </span>  00  <span class="subxComment"># base[24:32]</span>
-<span id="L215" class="LineNr"> 215 </span><span class="subxComment"># gdt_end:</span>
-<span id="L216" class="LineNr"> 216 </span>
-<span id="L217" class="LineNr"> 217 </span><span class="subxComment"># f8:</span>
-<span id="L218" class="LineNr"> 218 </span><span class="subxComment"># gdt_descriptor:</span>
-<span id="L219" class="LineNr"> 219 </span>  17 00  <span class="subxComment"># final index of gdt = gdt_end - gdt_start - 1</span>
-<span id="L220" class="LineNr"> 220 </span>  e0 7c 00 00  <span class="subxComment"># start = gdt_start [label]</span>
-<span id="L221" class="LineNr"> 221 </span>
-<span id="L222" class="LineNr"> 222 </span><span class="subxComment"># padding</span>
-<span id="L223" class="LineNr"> 223 </span><span class="subxComment"># fe:</span>
-<span id="L224" class="LineNr"> 224 </span>                                          00 00
-<span id="L225" class="LineNr"> 225 </span>
-<span id="L226" class="LineNr"> 226 </span><span class="subxComment">## 32-bit code from this point (still some instructions not in SubX)</span>
-<span id="L227" class="LineNr"> 227 </span>
-<span id="L228" class="LineNr"> 228 </span><span class="subxComment"># offset 100 (address 0x7d00):</span>
-<span id="L229" class="LineNr"> 229 </span><span class="subxComment"># initialize_32bit_mode:</span>
-<span id="L230" class="LineNr"> 230 </span>  66 b8 10 00  <span class="subxComment"># ax &lt;- offset 16 from gdt_start</span>
-<span id="L231" class="LineNr"> 231 </span>  8e d8  <span class="subxComment"># ds &lt;- ax</span>
-<span id="L232" class="LineNr"> 232 </span>  8e d0  <span class="subxComment"># ss &lt;- ax</span>
-<span id="L233" class="LineNr"> 233 </span>  8e c0  <span class="subxComment"># es &lt;- ax</span>
-<span id="L234" class="LineNr"> 234 </span>  8e e0  <span class="subxComment"># fs &lt;- ax</span>
-<span id="L235" class="LineNr"> 235 </span>  8e e8  <span class="subxComment"># gs &lt;- ax</span>
-<span id="L236" class="LineNr"> 236 </span>
-<span id="L237" class="LineNr"> 237 </span><span class="subxComment"># 10e:</span>
-<span id="L238" class="LineNr"> 238 </span>  bc 00 00 07 00  <span class="subxComment"># esp &lt;- 0x00070000</span>
-<span id="L239" class="LineNr"> 239 </span>
-<span id="L240" class="LineNr"> 240 </span><span class="subxComment"># 113:</span>
-<span id="L241" class="LineNr"> 241 </span>  <span class="subxComment"># load interrupt handlers</span>
-<span id="L242" class="LineNr"> 242 </span>  0f 01 1d  <span class="subxComment"># lidt 00/mod/indirect 011/subop 101/rm32/use-disp32</span>
-<span id="L243" class="LineNr"> 243 </span>    00 80 00 00  <span class="subxComment"># *idt_descriptor [label]</span>
-<span id="L244" class="LineNr"> 244 </span>
-<span id="L245" class="LineNr"> 245 </span>  <span class="subxComment"># For now, not bothering reprogramming the IRQ to not conflict with software</span>
-<span id="L246" class="LineNr"> 246 </span>  <span class="subxComment"># exceptions.</span>
-<span id="L247" class="LineNr"> 247 </span>  <span class="subxComment">#   <a href="https://wiki.osdev.org/index.php?title=8259_PIC&amp;oldid=24650#Protected_Mode">https://wiki.osdev.org/index.php?title=8259_PIC&amp;oldid=24650#Protected_Mode</a></span>
-<span id="L248" class="LineNr"> 248 </span>  <span class="subxComment">#</span>
-<span id="L249" class="LineNr"> 249 </span>  <span class="subxComment"># Interrupt 1 (keyboard) conflicts with debugger faults. We don't use a</span>
-<span id="L250" class="LineNr"> 250 </span>  <span class="subxComment"># debugger.</span>
-<span id="L251" class="LineNr"> 251 </span>  <span class="subxComment"># Reference:</span>
-<span id="L252" class="LineNr"> 252 </span>  <span class="subxComment">#   <a href="https://wiki.osdev.org/Exceptions">https://wiki.osdev.org/Exceptions</a></span>
-<span id="L253" class="LineNr"> 253 </span>
-<span id="L254" class="LineNr"> 254 </span><span class="subxComment"># 11a:</span>
-<span id="L255" class="LineNr"> 255 </span>  <span class="subxComment"># enable keyboard IRQ (1)</span>
-<span id="L256" class="LineNr"> 256 </span>  b0 fd  <span class="subxComment"># al &lt;- 0xfd  # disable mask for IRQ1</span>
-<span id="L257" class="LineNr"> 257 </span>  e6 21  <span class="subxComment"># port 0x21 &lt;- al</span>
-<span id="L258" class="LineNr"> 258 </span>
-<span id="L259" class="LineNr"> 259 </span><span class="subxComment"># 11e:</span>
-<span id="L260" class="LineNr"> 260 </span>  <span class="subxComment"># initialization is done; enable interrupts</span>
-<span id="L261" class="LineNr"> 261 </span>  fb
-<span id="L262" class="LineNr"> 262 </span>  e9 dc 16 00 00  <span class="subxComment"># jump to 0x9400 [label]</span>
-<span id="L263" class="LineNr"> 263 </span>
-<span id="L264" class="LineNr"> 264 </span><span class="subxComment"># padding</span>
-<span id="L265" class="LineNr"> 265 </span><span class="subxComment"># 124:</span>
-<span id="L266" class="LineNr"> 266 </span>            00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L267" class="LineNr"> 267 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L268" class="LineNr"> 268 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L269" class="LineNr"> 269 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L270" class="LineNr"> 270 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L271" class="LineNr"> 271 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L272" class="LineNr"> 272 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L273" class="LineNr"> 273 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L274" class="LineNr"> 274 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L275" class="LineNr"> 275 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L276" class="LineNr"> 276 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L277" class="LineNr"> 277 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L278" class="LineNr"> 278 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L279" class="LineNr"> 279 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L280" class="LineNr"> 280 </span>
-<span id="L281" class="LineNr"> 281 </span><span class="subxComment"># 1fe:</span>
-<span id="L282" class="LineNr"> 282 </span><span class="subxComment"># final 2 bytes of boot sector</span>
-<span id="L283" class="LineNr"> 283 </span>55 aa
-<span id="L284" class="LineNr"> 284 </span>
-<span id="L285" class="LineNr"> 285 </span><span class="subxComment">## sector 2 onwards loaded by load_disk, not automatically on boot</span>
-<span id="L286" class="LineNr"> 286 </span>
-<span id="L287" class="LineNr"> 287 </span><span class="subxComment"># offset 200 (address 0x7e00):</span>
-<span id="L288" class="LineNr"> 288 </span><span class="subxComment"># null interrupt handler:</span>
-<span id="L289" class="LineNr"> 289 </span>  cf  <span class="subxComment"># iret</span>
-<span id="L290" class="LineNr"> 290 </span>
-<span id="L291" class="LineNr"> 291 </span><span class="subxComment"># padding</span>
-<span id="L292" class="LineNr"> 292 </span><span class="subxComment"># 201:</span>
-<span id="L293" class="LineNr"> 293 </span>   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L294" class="LineNr"> 294 </span>
-<span id="L295" class="LineNr"> 295 </span><span class="subxComment"># 210:</span>
-<span id="L296" class="LineNr"> 296 </span><span class="subxComment"># keyboard interrupt handler:</span>
-<span id="L297" class="LineNr"> 297 </span>  <span class="subxComment"># prologue</span>
-<span id="L298" class="LineNr"> 298 </span>  fa  <span class="subxComment"># disable interrupts</span>
-<span id="L299" class="LineNr"> 299 </span>  60  <span class="subxComment"># push all registers to stack</span>
-<span id="L300" class="LineNr"> 300 </span>  <span class="subxComment"># acknowledge interrupt</span>
-<span id="L301" class="LineNr"> 301 </span>  b0 20  <span class="subxComment"># al &lt;- 0x20</span>
-<span id="L302" class="LineNr"> 302 </span>  e6 20  <span class="subxComment"># port 0x20 &lt;- al</span>
-<span id="L303" class="LineNr"> 303 </span>  31 c0  <span class="subxComment"># eax &lt;- xor eax;  11/direct 000/r32/eax 000/rm32/eax</span>
-<span id="L304" class="LineNr"> 304 </span>  <span class="subxComment"># check output buffer of 8042 keyboard controller (<a href="https://web.archive.org/web/20040604041507/http://panda.cs.ndsu.nodak.edu/~achapwes/PICmicro/keyboard/atkeyboard.html)">https://web.archive.org/web/20040604041507/http://panda.cs.ndsu.nodak.edu/~achapwes/PICmicro/keyboard/atkeyboard.html)</a></span>
-<span id="L305" class="LineNr"> 305 </span>  e4 64  <span class="subxComment"># al &lt;- port 0x64</span>
-<span id="L306" class="LineNr"> 306 </span>  a8 01  <span class="subxComment"># set zf if bit 0 (least significant) is not set</span>
-<span id="L307" class="LineNr"> 307 </span>  74 89  <span class="subxComment"># jump to epilogue if 0 bit is not set [label]</span>
-<span id="L308" class="LineNr"> 308 </span><span class="subxComment"># 21e:</span>
-<span id="L309" class="LineNr"> 309 </span>  <span class="subxH1Comment"># - if keyboard buffer is full, return</span>
-<span id="L310" class="LineNr"> 310 </span>  31 c9  <span class="subxComment"># ecx &lt;- xor ecx;  11/direct 001/r32/ecx 001/rm32/ecx</span>
-<span id="L311" class="LineNr"> 311 </span>  <span class="subxComment"># var index/ecx: byte</span>
-<span id="L312" class="LineNr"> 312 </span>  8a  <span class="subxComment"># copy m8 at r32 to r8</span>
-<span id="L313" class="LineNr"> 313 </span>    0d  <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span>
-<span id="L314" class="LineNr"> 314 </span>    28 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L315" class="LineNr"> 315 </span>  <span class="subxComment"># al = *(keyboard buffer + index)</span>
-<span id="L316" class="LineNr"> 316 </span>  8a  <span class="subxComment"># copy m8 at r32 to r8</span>
-<span id="L317" class="LineNr"> 317 </span>    81  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span>
-<span id="L318" class="LineNr"> 318 </span>    30 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L319" class="LineNr"> 319 </span>  <span class="subxComment"># if (al != 0) return</span>
-<span id="L320" class="LineNr"> 320 </span>  3c 00  <span class="subxComment"># compare al, 0</span>
-<span id="L321" class="LineNr"> 321 </span>  75 77  <span class="subxComment"># jump to epilogue if != [label]</span>
-<span id="L322" class="LineNr"> 322 </span><span class="subxComment"># 230:</span>
-<span id="L323" class="LineNr"> 323 </span>  <span class="subxH1Comment"># - read keycode</span>
-<span id="L324" class="LineNr"> 324 </span>  e4 60  <span class="subxComment"># al &lt;- port 0x60</span>
-<span id="L325" class="LineNr"> 325 </span>  <span class="subxH1Comment"># - key released</span>
-<span id="L326" class="LineNr"> 326 </span>  <span class="subxComment"># if (al == 0xaa) shift = false  # left shift is being lifted</span>
-<span id="L327" class="LineNr"> 327 </span>  3c aa  <span class="subxComment"># compare al, 0xaa</span>
-<span id="L328" class="LineNr"> 328 </span>  75 0a  <span class="subxComment"># jump to $1 if != [label]</span>
-<span id="L329" class="LineNr"> 329 </span>  <span class="subxComment"># *shift = 0</span>
-<span id="L330" class="LineNr"> 330 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
-<span id="L331" class="LineNr"> 331 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
-<span id="L332" class="LineNr"> 332 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L333" class="LineNr"> 333 </span>    00 00 00 00  <span class="subxComment"># imm32</span>
-<span id="L334" class="LineNr"> 334 </span><span class="subxComment"># 240:</span>
-<span id="L335" class="LineNr"> 335 </span><span class="subxComment"># $1:</span>
-<span id="L336" class="LineNr"> 336 </span>  <span class="subxComment"># if (al == 0xb6) shift = false  # right shift is being lifted</span>
-<span id="L337" class="LineNr"> 337 </span>  3c b6  <span class="subxComment"># compare al, 0xb6</span>
-<span id="L338" class="LineNr"> 338 </span>  75 0a  <span class="subxComment"># jump to $1 if != [label]</span>
-<span id="L339" class="LineNr"> 339 </span>  <span class="subxComment"># *shift = 0</span>
-<span id="L340" class="LineNr"> 340 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
-<span id="L341" class="LineNr"> 341 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
-<span id="L342" class="LineNr"> 342 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L343" class="LineNr"> 343 </span>    00 00 00 00  <span class="subxComment"># imm32</span>
-<span id="L344" class="LineNr"> 344 </span><span class="subxComment"># $2:</span>
-<span id="L345" class="LineNr"> 345 </span>  <span class="subxComment"># if (al &amp; 0x80) a key is being lifted; return</span>
-<span id="L346" class="LineNr"> 346 </span>  50  <span class="subxComment"># push eax</span>
-<span id="L347" class="LineNr"> 347 </span>  24 80  <span class="subxComment"># al &lt;- and 0x80</span>
-<span id="L348" class="LineNr"> 348 </span>  3c 00  <span class="subxComment"># compare al, 0</span>
-<span id="L349" class="LineNr"> 349 </span>  58  <span class="subxComment"># pop to eax (without touching flags)</span>
-<span id="L350" class="LineNr"> 350 </span>  75 51  <span class="subxComment"># jump to epilogue if != [label]</span>
-<span id="L351" class="LineNr"> 351 </span><span class="subxComment"># 256:</span>
-<span id="L352" class="LineNr"> 352 </span>  <span class="subxH1Comment"># - key pressed</span>
-<span id="L353" class="LineNr"> 353 </span>  <span class="subxComment"># if (al == 0x2a) shift = true, return  # left shift pressed</span>
-<span id="L354" class="LineNr"> 354 </span>  3c 2a  <span class="subxComment"># compare al, 0x2a</span>
-<span id="L355" class="LineNr"> 355 </span>  75 0c  <span class="subxComment"># jump to $3 if != [label]</span>
-<span id="L356" class="LineNr"> 356 </span>  <span class="subxComment"># *shift = 1</span>
-<span id="L357" class="LineNr"> 357 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
-<span id="L358" class="LineNr"> 358 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
-<span id="L359" class="LineNr"> 359 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L360" class="LineNr"> 360 </span>    01 00 00 00  <span class="subxComment"># imm32</span>
-<span id="L361" class="LineNr"> 361 </span>  eb 41 <span class="subxComment"># jump to epilogue [label]</span>
-<span id="L362" class="LineNr"> 362 </span><span class="subxComment"># 266:</span>
-<span id="L363" class="LineNr"> 363 </span><span class="subxComment"># $3:</span>
-<span id="L364" class="LineNr"> 364 </span>  <span class="subxComment"># if (al == 0x36) shift = true, return  # right shift pressed</span>
-<span id="L365" class="LineNr"> 365 </span>  3c 36  <span class="subxComment"># compare al, 0x36</span>
-<span id="L366" class="LineNr"> 366 </span>  75 0c  <span class="subxComment"># jump to $4 if != [label]</span>
-<span id="L367" class="LineNr"> 367 </span>  <span class="subxComment"># *shift = 1</span>
-<span id="L368" class="LineNr"> 368 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
-<span id="L369" class="LineNr"> 369 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
-<span id="L370" class="LineNr"> 370 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L371" class="LineNr"> 371 </span>    01 00 00 00  <span class="subxComment"># imm32</span>
-<span id="L372" class="LineNr"> 372 </span>  eb 31 <span class="subxComment"># jump to epilogue [label]</span>
-<span id="L373" class="LineNr"> 373 </span><span class="subxComment"># 276:</span>
-<span id="L374" class="LineNr"> 374 </span><span class="subxComment"># $4:</span>
-<span id="L375" class="LineNr"> 375 </span>  <span class="subxH1Comment"># - convert key to character</span>
-<span id="L376" class="LineNr"> 376 </span>  <span class="subxComment"># if (shift) use keyboard normal map</span>
-<span id="L377" class="LineNr"> 377 </span>  81  <span class="subxComment"># operate on rm32 and imm32</span>
-<span id="L378" class="LineNr"> 378 </span>    3d  <span class="subxComment"># 00/mod/indirect 111/subop/compare 101/rm32/use-disp32</span>
-<span id="L379" class="LineNr"> 379 </span>    10 80 00 00  <span class="subxComment"># disp32 = shift [label]</span>
-<span id="L380" class="LineNr"> 380 </span>    00 00 00 00  <span class="subxComment"># imm32</span>
-<span id="L381" class="LineNr"> 381 </span>  74 08  <span class="subxComment"># jump to $5 if = [label]</span>
-<span id="L382" class="LineNr"> 382 </span>  <span class="subxComment"># otherwise use keyboard shift map</span>
-<span id="L383" class="LineNr"> 383 </span>  <span class="subxComment"># al &lt;- *(keyboard shift map + eax)</span>
-<span id="L384" class="LineNr"> 384 </span>  8a  <span class="subxComment"># copy m8 at rm32 to r8</span>
-<span id="L385" class="LineNr"> 385 </span>    80  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span>
-<span id="L386" class="LineNr"> 386 </span>    00 87 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L387" class="LineNr"> 387 </span>  eb 06  <span class="subxComment"># jump to $6 [label]</span>
-<span id="L388" class="LineNr"> 388 </span><span class="subxComment"># 28a:</span>
-<span id="L389" class="LineNr"> 389 </span><span class="subxComment"># $5:</span>
-<span id="L390" class="LineNr"> 390 </span>  <span class="subxComment"># al &lt;- *(keyboard normal map + eax)</span>
-<span id="L391" class="LineNr"> 391 </span>  8a  <span class="subxComment"># copy m8 at rm32 to r8</span>
-<span id="L392" class="LineNr"> 392 </span>    80  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span>
-<span id="L393" class="LineNr"> 393 </span>    00 86 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L394" class="LineNr"> 394 </span><span class="subxComment"># $6:</span>
-<span id="L395" class="LineNr"> 395 </span>  <span class="subxH1Comment"># - if there's no character mapping, return</span>
-<span id="L396" class="LineNr"> 396 </span>  3c 00  <span class="subxComment"># compare al, 0</span>
-<span id="L397" class="LineNr"> 397 </span>  74 13  <span class="subxComment"># jump to epilogue if = [label]</span>
-<span id="L398" class="LineNr"> 398 </span><span class="subxComment"># 294:</span>
-<span id="L399" class="LineNr"> 399 </span>  <span class="subxH1Comment"># - store al in keyboard buffer</span>
-<span id="L400" class="LineNr"> 400 </span>  88  <span class="subxComment"># copy r8 to m8 at r32</span>
-<span id="L401" class="LineNr"> 401 </span>    81  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span>
-<span id="L402" class="LineNr"> 402 </span>    30 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L403" class="LineNr"> 403 </span>  <span class="subxComment"># increment index</span>
-<span id="L404" class="LineNr"> 404 </span>  fe  <span class="subxComment"># increment byte</span>
-<span id="L405" class="LineNr"> 405 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span>
-<span id="L406" class="LineNr"> 406 </span>    28 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L407" class="LineNr"> 407 </span>  <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span>
-<span id="L408" class="LineNr"> 408 </span>  80  <span class="subxComment"># and byte</span>
-<span id="L409" class="LineNr"> 409 </span>    25  <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span>
-<span id="L410" class="LineNr"> 410 </span>    28 80 00 00  <span class="subxComment"># disp32 [label]</span>
-<span id="L411" class="LineNr"> 411 </span>    0f  <span class="subxComment"># imm8</span>
-<span id="L412" class="LineNr"> 412 </span><span class="subxComment"># 2a9:</span>
-<span id="L413" class="LineNr"> 413 </span>  <span class="subxComment"># epilogue</span>
-<span id="L414" class="LineNr"> 414 </span>  61  <span class="subxComment"># pop all registers</span>
-<span id="L415" class="LineNr"> 415 </span>  fb  <span class="subxComment"># enable interrupts</span>
-<span id="L416" class="LineNr"> 416 </span>  cf  <span class="subxComment"># iret</span>
-<span id="L417" class="LineNr"> 417 </span>
-<span id="L418" class="LineNr"> 418 </span><span class="subxComment"># padding</span>
-<span id="L419" class="LineNr"> 419 </span><span class="subxComment"># 2aa:</span>
-<span id="L420" class="LineNr"> 420 </span>                              00 00 00 00 00 00
-<span id="L421" class="LineNr"> 421 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L422" class="LineNr"> 422 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L423" class="LineNr"> 423 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L424" class="LineNr"> 424 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L425" class="LineNr"> 425 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L426" class="LineNr"> 426 </span><span class="subxComment"># 300:</span>
-<span id="L427" class="LineNr"> 427 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L428" class="LineNr"> 428 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L429" class="LineNr"> 429 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L430" class="LineNr"> 430 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L431" class="LineNr"> 431 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L432" class="LineNr"> 432 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L433" class="LineNr"> 433 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L434" class="LineNr"> 434 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L435" class="LineNr"> 435 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L436" class="LineNr"> 436 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L437" class="LineNr"> 437 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L438" class="LineNr"> 438 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L439" class="LineNr"> 439 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L440" class="LineNr"> 440 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L441" class="LineNr"> 441 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L442" class="LineNr"> 442 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L443" class="LineNr"> 443 </span>
-<span id="L444" class="LineNr"> 444 </span><span class="subxComment"># offset 400 (address 0x8000): interrupt handler data</span>
-<span id="L445" class="LineNr"> 445 </span><span class="subxComment"># idt_descriptor:</span>
-<span id="L446" class="LineNr"> 446 </span>  ff 03  <span class="subxComment"># idt_end - idt_start - 1</span>
-<span id="L447" class="LineNr"> 447 </span>  00 82 00 00  <span class="subxComment"># start = idt_start [label]</span>
-<span id="L448" class="LineNr"> 448 </span>
-<span id="L449" class="LineNr"> 449 </span><span class="subxComment"># padding</span>
-<span id="L450" class="LineNr"> 450 </span><span class="subxComment"># 406:</span>
-<span id="L451" class="LineNr"> 451 </span>                  00 00 00 00 00 00 00 00 00 00
-<span id="L452" class="LineNr"> 452 </span>
-<span id="L453" class="LineNr"> 453 </span><span class="subxComment"># 410:</span>
-<span id="L454" class="LineNr"> 454 </span><span class="subxComment"># var shift: boolean</span>
-<span id="L455" class="LineNr"> 455 </span>  00 00 00 00
-<span id="L456" class="LineNr"> 456 </span>
-<span id="L457" class="LineNr"> 457 </span><span class="subxComment"># padding</span>
-<span id="L458" class="LineNr"> 458 </span><span class="subxComment"># 414:</span>
-<span id="L459" class="LineNr"> 459 </span>            00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L460" class="LineNr"> 460 </span>00 00 00 00 00 00 00 00
-<span id="L461" class="LineNr"> 461 </span>
-<span id="L462" class="LineNr"> 462 </span><span class="subxComment"># 428:</span>
-<span id="L463" class="LineNr"> 463 </span><span class="subxComment"># var keyboard circular buffer</span>
-<span id="L464" class="LineNr"> 464 </span><span class="subxComment"># write index: nibble</span>
-<span id="L465" class="LineNr"> 465 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span>
-<span id="L466" class="LineNr"> 466 </span>  00 00 00 00
-<span id="L467" class="LineNr"> 467 </span><span class="subxComment"># 42c:</span>
-<span id="L468" class="LineNr"> 468 </span><span class="subxComment"># read index: nibble</span>
-<span id="L469" class="LineNr"> 469 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span>
-<span id="L470" class="LineNr"> 470 </span>  00 00 00 00
-<span id="L471" class="LineNr"> 471 </span><span class="subxComment"># 430:</span>
-<span id="L472" class="LineNr"> 472 </span><span class="subxComment"># circular buffer: byte[16]</span>
-<span id="L473" class="LineNr"> 473 </span>  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L474" class="LineNr"> 474 </span>
-<span id="L475" class="LineNr"> 475 </span><span class="subxComment"># padding</span>
-<span id="L476" class="LineNr"> 476 </span><span class="subxComment"># 440:</span>
-<span id="L477" class="LineNr"> 477 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L478" class="LineNr"> 478 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L479" class="LineNr"> 479 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L480" class="LineNr"> 480 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L481" class="LineNr"> 481 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L482" class="LineNr"> 482 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L483" class="LineNr"> 483 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L484" class="LineNr"> 484 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L485" class="LineNr"> 485 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L486" class="LineNr"> 486 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L487" class="LineNr"> 487 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L488" class="LineNr"> 488 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-<span id="L489" class="LineNr"> 489 </span>
-<span id="L490" class="LineNr"> 490 </span><span class="subxComment"># offset 500 (address 0x8100):</span>
-<span id="L491" class="Folded"> 491 </span><span class="Folded">+-- 53 lines: # video mode info ---------------------------------------------------------------------------------------------------------------------------------------</span>
-<span id="L544" class="LineNr"> 544 </span>
-<span id="L545" class="LineNr"> 545 </span><span class="subxComment"># offset 600 (address 0x8200):</span>
-<span id="L546" class="Folded"> 546 </span><span class="Folded">+--161 lines: # interrupt descriptor table ----------------------------------------------------------------------------------------------------------------------------</span>
-<span id="L707" class="LineNr"> 707 </span>
-<span id="L708" class="LineNr"> 708 </span><span class="subxComment">## the rest of this file has data</span>
-<span id="L709" class="LineNr"> 709 </span>
-<span id="L710" class="LineNr"> 710 </span><span class="subxComment"># offset a00 (address 0x8600):</span>
-<span id="L711" class="Folded"> 711 </span><span class="Folded">+--152 lines: # translating keys to ASCII -----------------------------------------------------------------------------------------------------------------------------</span>
-<span id="L863" class="LineNr"> 863 </span>
-<span id="L864" class="LineNr"> 864 </span><span class="subxComment"># offset 1000 (address 0x8c00)</span>
-<span id="L865" class="Folded"> 865 </span><span class="Folded">+--236 lines: # Bitmaps for some ASCII characters (soon Unicode) ------------------------------------------------------------------------------------------------------</span>
-<span id="L1101" class="LineNr">1101 </span>
-<span id="L1102" class="LineNr">1102 </span><span class="subxComment"># offset 1800 (address 0x9400)</span>
-<span id="L1103" class="LineNr">1103 </span>
-<span id="L1104" class="LineNr">1104 </span><span class="subxComment"># vim&#0058;ft=subx</span>
+<span id="L165" class="LineNr"> 165 </span><span class="subxComment"># 56:</span>
+<span id="L166" class="LineNr"> 166 </span>  <span class="subxComment"># load information for the (hopefully) current video mode</span>
+<span id="L167" class="LineNr"> 167 </span>  <span class="subxComment"># mostly just for the address to the linear frame buffer</span>
+<span id="L168" class="LineNr"> 168 </span>  b4 4f  <span class="subxComment"># ah &lt;- 4f (VBE)</span>
+<span id="L169" class="LineNr"> 169 </span>  b0 01  <span class="subxComment"># al &lt;- 01 (get video mode info)</span>
+<span id="L170" class="LineNr"> 170 </span>  b9 07 01  <span class="subxComment"># cx &lt;- 0x0107 (mode we requested)</span>
+<span id="L171" class="LineNr"> 171 </span>  bf 00 81  <span class="subxComment"># di &lt;- 0x8100 (video mode info) [label]</span>
+<span id="L172" class="LineNr"> 172 </span>  cd 10
+<span id="L173" class="LineNr"> 173 </span>
+<span id="L174" class="LineNr"> 174 </span><span class="subxComment"># 62:</span>
+<span id="L175" class="LineNr"> 175 </span>  <span class="subxComment"># switch to 32-bit mode</span>
+<span id="L176" class="LineNr"> 176 </span>  0f 01 16  <span class="subxComment"># lgdt 00/mod/indirect 010/subop 110/rm/use-disp16</span>
+<span id="L177" class="LineNr"> 177 </span>    f8 7c  <span class="subxComment"># *gdt_descriptor [label]</span>
+<span id="L178" class="LineNr"> 178 </span>  0f 20 c0  <span class="subxComment"># eax &lt;- cr0</span>
+<span id="L179" class="LineNr"> 179 </span>  66 83 c8 01  <span class="subxComment"># eax &lt;- or 0x1</span>
+<span id="L180" class="LineNr"> 180 </span>  0f 22 c0  <span class="subxComment"># cr0 &lt;- eax</span>
+<span id="L181" class="LineNr"> 181 </span>  ea 00 7d 08 00  <span class="subxComment"># far jump to initialize_32bit_mode after setting cs to the record at offset 8 in the gdt (gdt_code) [label]</span>
+<span id="L182" class="LineNr"> 182 </span>
+<span id="L183" class="LineNr"> 183 </span><span class="subxComment"># padding</span>
+<span id="L184" class="LineNr"> 184 </span><span class="subxComment"># 76:</span>
+<span id="L185" class="LineNr"> 185 </span>                  00 00 00 00 00 00 00 00 00 00
+<span id="L186" class="LineNr"> 186 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L187" class="LineNr"> 187 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L188" class="LineNr"> 188 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L189" class="LineNr"> 189 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L190" class="LineNr"> 190 </span>
+<span id="L191" class="LineNr"> 191 </span><span class="subxComment"># cf:</span>
+<span id="L192" class="LineNr"> 192 </span><span class="subxComment"># disk_error:</span>
+<span id="L193" class="LineNr"> 193 </span>  <span class="subxComment"># print 'D' to top-left of screen to indicate disk error</span>
+<span id="L194" class="LineNr"> 194 </span>  <span class="subxComment"># *0xb8000 &lt;- 0x0f44</span>
+<span id="L195" class="LineNr"> 195 </span>  <span class="subxComment"># bx &lt;- 0xb800</span>
+<span id="L196" class="LineNr"> 196 </span>  bb 00 b8
+<span id="L197" class="LineNr"> 197 </span>  <span class="subxComment"># ds &lt;- bx</span>
+<span id="L198" class="LineNr"> 198 </span>  8e db  <span class="subxComment"># 11b/mod 011b/reg/ds 011b/rm/bx</span>
+<span id="L199" class="LineNr"> 199 </span>  <span class="subxComment"># al &lt;- 'D'</span>
+<span id="L200" class="LineNr"> 200 </span>  b0 44
+<span id="L201" class="LineNr"> 201 </span>  <span class="subxComment"># ah &lt;- 0x0f  # white on black</span>
+<span id="L202" class="LineNr"> 202 </span>  b4 0f
+<span id="L203" class="LineNr"> 203 </span>  <span class="subxComment"># bx &lt;- 0</span>
+<span id="L204" class="LineNr"> 204 </span>  bb 00 00
+<span id="L205" class="LineNr"> 205 </span>  <span class="subxComment"># *ds:bx &lt;- ax</span>
+<span id="L206" class="LineNr"> 206 </span>  89 07  <span class="subxComment"># 00b/mod/indirect 000b/reg/ax 111b/rm/bx</span>
+<span id="L207" class="LineNr"> 207 </span>
+<span id="L208" class="LineNr"> 208 </span>e9 fd ff  <span class="subxComment"># loop forever</span>
+<span id="L209" class="LineNr"> 209 </span>
+<span id="L210" class="LineNr"> 210 </span><span class="subxComment">## GDT: 3 records of 8 bytes each</span>
+<span id="L211" class="LineNr"> 211 </span>
+<span id="L212" class="LineNr"> 212 </span><span class="subxComment"># e0:</span>
+<span id="L213" class="LineNr"> 213 </span><span class="subxComment"># gdt_start:</span>
+<span id="L214" class="LineNr"> 214 </span><span class="subxComment"># gdt_null:  mandatory null descriptor</span>
+<span id="L215" class="LineNr"> 215 </span>  00 00 00 00 00 00 00 00
+<span id="L216" class="LineNr"> 216 </span><span class="subxComment"># gdt_code:  (offset 8 from gdt_start)</span>
+<span id="L217" class="LineNr"> 217 </span>  ff ff  <span class="subxComment"># limit[0:16]</span>
+<span id="L218" class="LineNr"> 218 </span>  00 00 00  <span class="subxComment"># base[0:24]</span>
+<span id="L219" class="LineNr"> 219 </span>  9a  <span class="subxComment"># 1/present 00/privilege 1/descriptor type = 1001b</span>
+<span id="L220" class="LineNr"> 220 </span>      <span class="subxComment"># 1/code 0/conforming 1/readable 0/accessed = 1010b</span>
+<span id="L221" class="LineNr"> 221 </span>  cf  <span class="subxComment"># 1/granularity 1/32-bit 0/64-bit-segment 0/AVL = 1100b</span>
+<span id="L222" class="LineNr"> 222 </span>      <span class="subxComment"># limit[16:20] = 1111b</span>
+<span id="L223" class="LineNr"> 223 </span>  00  <span class="subxComment"># base[24:32]</span>
+<span id="L224" class="LineNr"> 224 </span><span class="subxComment"># gdt_data:  (offset 16 from gdt_start)</span>
+<span id="L225" class="LineNr"> 225 </span>  ff ff  <span class="subxComment"># limit[0:16]</span>
+<span id="L226" class="LineNr"> 226 </span>  00 00 00  <span class="subxComment"># base[0:24]</span>
+<span id="L227" class="LineNr"> 227 </span>  92  <span class="subxComment"># 1/present 00/privilege 1/descriptor type = 1001b</span>
+<span id="L228" class="LineNr"> 228 </span>      <span class="subxComment"># 0/data 0/conforming 1/readable 0/accessed = 0010b</span>
+<span id="L229" class="LineNr"> 229 </span>  cf  <span class="subxComment"># same as gdt_code</span>
+<span id="L230" class="LineNr"> 230 </span>  00  <span class="subxComment"># base[24:32]</span>
+<span id="L231" class="LineNr"> 231 </span><span class="subxComment"># gdt_end:</span>
+<span id="L232" class="LineNr"> 232 </span>
+<span id="L233" class="LineNr"> 233 </span><span class="subxComment"># f8:</span>
+<span id="L234" class="LineNr"> 234 </span><span class="subxComment"># gdt_descriptor:</span>
+<span id="L235" class="LineNr"> 235 </span>  17 00  <span class="subxComment"># final index of gdt = gdt_end - gdt_start - 1</span>
+<span id="L236" class="LineNr"> 236 </span>  e0 7c 00 00  <span class="subxComment"># start = gdt_start [label]</span>
+<span id="L237" class="LineNr"> 237 </span>
+<span id="L238" class="LineNr"> 238 </span><span class="subxComment"># padding</span>
+<span id="L239" class="LineNr"> 239 </span><span class="subxComment"># fe:</span>
+<span id="L240" class="LineNr"> 240 </span>                                          00 00
+<span id="L241" class="LineNr"> 241 </span>
+<span id="L242" class="LineNr"> 242 </span><span class="subxComment">## 32-bit code from this point (still some instructions not in SubX)</span>
+<span id="L243" class="LineNr"> 243 </span>
+<span id="L244" class="LineNr"> 244 </span><span class="subxComment"># offset 100 (address 0x7d00):</span>
+<span id="L245" class="LineNr"> 245 </span><span class="subxComment"># initialize_32bit_mode:</span>
+<span id="L246" class="LineNr"> 246 </span>  66 b8 10 00  <span class="subxComment"># ax &lt;- offset 16 from gdt_start</span>
+<span id="L247" class="LineNr"> 247 </span>  8e d8  <span class="subxComment"># ds &lt;- ax</span>
+<span id="L248" class="LineNr"> 248 </span>  8e d0  <span class="subxComment"># ss &lt;- ax</span>
+<span id="L249" class="LineNr"> 249 </span>  8e c0  <span class="subxComment"># es &lt;- ax</span>
+<span id="L250" class="LineNr"> 250 </span>  8e e0  <span class="subxComment"># fs &lt;- ax</span>
+<span id="L251" class="LineNr"> 251 </span>  8e e8  <span class="subxComment"># gs &lt;- ax</span>
+<span id="L252" class="LineNr"> 252 </span>
+<span id="L253" class="LineNr"> 253 </span><span class="subxComment"># 10e:</span>
+<span id="L254" class="LineNr"> 254 </span>  bc 00 00 07 00  <span class="subxComment"># esp &lt;- 0x00070000</span>
+<span id="L255" class="LineNr"> 255 </span>
+<span id="L256" class="LineNr"> 256 </span><span class="subxComment"># 113:</span>
+<span id="L257" class="LineNr"> 257 </span>  <span class="subxComment"># load interrupt handlers</span>
+<span id="L258" class="LineNr"> 258 </span>  0f 01 1d  <span class="subxComment"># lidt 00/mod/indirect 011/subop 101/rm32/use-disp32</span>
+<span id="L259" class="LineNr"> 259 </span>    00 80 00 00  <span class="subxComment"># *idt_descriptor [label]</span>
+<span id="L260" class="LineNr"> 260 </span>
+<span id="L261" class="LineNr"> 261 </span>  <span class="subxComment"># For now, not bothering reprogramming the IRQ to not conflict with software</span>
+<span id="L262" class="LineNr"> 262 </span>  <span class="subxComment"># exceptions.</span>
+<span id="L263" class="LineNr"> 263 </span>  <span class="subxComment">#   <a href="https://wiki.osdev.org/index.php?title=8259_PIC&oldid=24650#Protected_Mode">https://wiki.osdev.org/index.php?title=8259_PIC&amp;oldid=24650#Protected_Mode</a></span>
+<span id="L264" class="LineNr"> 264 </span>  <span class="subxComment">#</span>
+<span id="L265" class="LineNr"> 265 </span>  <span class="subxComment"># Interrupt 1 (keyboard) conflicts with debugger faults. We don't use a</span>
+<span id="L266" class="LineNr"> 266 </span>  <span class="subxComment"># debugger.</span>
+<span id="L267" class="LineNr"> 267 </span>  <span class="subxComment"># Reference:</span>
+<span id="L268" class="LineNr"> 268 </span>  <span class="subxComment">#   <a href="https://wiki.osdev.org/Exceptions">https://wiki.osdev.org/Exceptions</a></span>
+<span id="L269" class="LineNr"> 269 </span>
+<span id="L270" class="LineNr"> 270 </span><span class="subxComment"># 11a:</span>
+<span id="L271" class="LineNr"> 271 </span>  <span class="subxComment"># enable keyboard IRQ (1)</span>
+<span id="L272" class="LineNr"> 272 </span>  b0 fd  <span class="subxComment"># al &lt;- 0xfd  # disable mask for IRQ1</span>
+<span id="L273" class="LineNr"> 273 </span>  e6 21  <span class="subxComment"># port 0x21 &lt;- al</span>
+<span id="L274" class="LineNr"> 274 </span>
+<span id="L275" class="LineNr"> 275 </span><span class="subxComment"># 11e:</span>
+<span id="L276" class="LineNr"> 276 </span>  fb  <span class="subxComment"># enable interrupts</span>
+<span id="L277" class="LineNr"> 277 </span>  db e3  <span class="subxComment"># initialize FPU</span>
+<span id="L278" class="LineNr"> 278 </span>  <span class="subxComment"># eax &lt;- cr4</span>
+<span id="L279" class="LineNr"> 279 </span>  0f 20  <span class="subxComment"># copy cr4 to rm32</span>
+<span id="L280" class="LineNr"> 280 </span>    e0  <span class="subxComment"># 11/mod/direct 100/r32/CR4 000/rm32/eax</span>
+<span id="L281" class="LineNr"> 281 </span>  <span class="subxComment"># eax &lt;- or bit 9</span>
+<span id="L282" class="LineNr"> 282 </span>  0f ba
+<span id="L283" class="LineNr"> 283 </span>    e8  <span class="subxComment"># 11/mod/direct 101/subop/bit-test-and-set 000/rm32/eax</span>
+<span id="L284" class="LineNr"> 284 </span>    09  <span class="subxComment"># imm8</span>
+<span id="L285" class="LineNr"> 285 </span>  <span class="subxComment"># cr4 &lt;- eax</span>
+<span id="L286" class="LineNr"> 286 </span>  0f 22  <span class="subxComment"># copy rm32 to cr4</span>
+<span id="L287" class="LineNr"> 287 </span>    e0  <span class="subxComment"># 11/mod/direct 100/r32/CR4 000/rm32/eax</span>
+<span id="L288" class="LineNr"> 288 </span>  e9 d0 16 00 00  <span class="subxComment"># jump to 0x9400 [label]</span>
+<span id="L289" class="LineNr"> 289 </span>
+<span id="L290" class="LineNr"> 290 </span><span class="subxComment"># padding</span>
+<span id="L291" class="LineNr"> 291 </span><span class="subxComment"># 130:</span>
+<span id="L292" class="LineNr"> 292 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L293" class="LineNr"> 293 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L294" class="LineNr"> 294 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L295" class="LineNr"> 295 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L296" class="LineNr"> 296 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L297" class="LineNr"> 297 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L298" class="LineNr"> 298 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L299" class="LineNr"> 299 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L300" class="LineNr"> 300 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L301" class="LineNr"> 301 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L302" class="LineNr"> 302 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L303" class="LineNr"> 303 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L304" class="LineNr"> 304 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L305" class="LineNr"> 305 </span>
+<span id="L306" class="LineNr"> 306 </span><span class="subxComment"># 1fe:</span>
+<span id="L307" class="LineNr"> 307 </span><span class="subxComment"># final 2 bytes of boot sector</span>
+<span id="L308" class="LineNr"> 308 </span>55 aa
+<span id="L309" class="LineNr"> 309 </span>
+<span id="L310" class="LineNr"> 310 </span><span class="subxComment">## sector 2 onwards loaded by load_disk, not automatically on boot</span>
+<span id="L311" class="LineNr"> 311 </span>
+<span id="L312" class="LineNr"> 312 </span><span class="subxComment"># offset 200 (address 0x7e00):</span>
+<span id="L313" class="LineNr"> 313 </span><span class="subxComment"># null interrupt handler:</span>
+<span id="L314" class="LineNr"> 314 </span>  cf  <span class="subxComment"># iret</span>
+<span id="L315" class="LineNr"> 315 </span>
+<span id="L316" class="LineNr"> 316 </span><span class="subxComment"># padding</span>
+<span id="L317" class="LineNr"> 317 </span><span class="subxComment"># 201:</span>
+<span id="L318" class="LineNr"> 318 </span>   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L319" class="LineNr"> 319 </span>
+<span id="L320" class="LineNr"> 320 </span><span class="subxComment"># 210:</span>
+<span id="L321" class="LineNr"> 321 </span><span class="subxComment"># keyboard interrupt handler:</span>
+<span id="L322" class="LineNr"> 322 </span>  <span class="subxComment"># prologue</span>
+<span id="L323" class="LineNr"> 323 </span>  fa  <span class="subxComment"># disable interrupts</span>
+<span id="L324" class="LineNr"> 324 </span>  60  <span class="subxComment"># push all registers to stack</span>
+<span id="L325" class="LineNr"> 325 </span>  <span class="subxComment"># acknowledge interrupt</span>
+<span id="L326" class="LineNr"> 326 </span>  b0 20  <span class="subxComment"># al &lt;- 0x20</span>
+<span id="L327" class="LineNr"> 327 </span>  e6 20  <span class="subxComment"># port 0x20 &lt;- al</span>
+<span id="L328" class="LineNr"> 328 </span>  31 c0  <span class="subxComment"># eax &lt;- xor eax;  11/direct 000/r32/eax 000/rm32/eax</span>
+<span id="L329" class="LineNr"> 329 </span>  <span class="subxComment"># check output buffer of 8042 keyboard controller (<a href="https://web.archive.org/web/20040604041507/http://panda.cs.ndsu.nodak.edu/~achapwes/PICmicro/keyboard/atkeyboard.html">https://web.archive.org/web/20040604041507/http://panda.cs.ndsu.nodak.edu/~achapwes/PICmicro/keyboard/atkeyboard.html</a>)</span>
+<span id="L330" class="LineNr"> 330 </span>  e4 64  <span class="subxComment"># al &lt;- port 0x64</span>
+<span id="L331" class="LineNr"> 331 </span>  a8 01  <span class="subxComment"># set zf if bit 0 (least significant) is not set</span>
+<span id="L332" class="LineNr"> 332 </span>  74 89  <span class="subxComment"># jump to epilogue if 0 bit is not set [label]</span>
+<span id="L333" class="LineNr"> 333 </span><span class="subxComment"># 21e:</span>
+<span id="L334" class="LineNr"> 334 </span>  <span class="subxH1Comment"># - if keyboard buffer is full, return</span>
+<span id="L335" class="LineNr"> 335 </span>  31 c9  <span class="subxComment"># ecx &lt;- xor ecx;  11/direct 001/r32/ecx 001/rm32/ecx</span>
+<span id="L336" class="LineNr"> 336 </span>  <span class="subxComment"># var index/ecx: byte</span>
+<span id="L337" class="LineNr"> 337 </span>  8a  <span class="subxComment"># copy m8 at r32 to r8</span>
+<span id="L338" class="LineNr"> 338 </span>    0d  <span class="subxComment"># 00/mod/indirect 001/r8/cl 101/rm32/use-disp32</span>
+<span id="L339" class="LineNr"> 339 </span>    28 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L340" class="LineNr"> 340 </span>  <span class="subxComment"># al = *(keyboard buffer + index)</span>
+<span id="L341" class="LineNr"> 341 </span>  8a  <span class="subxComment"># copy m8 at r32 to r8</span>
+<span id="L342" class="LineNr"> 342 </span>    81  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span>
+<span id="L343" class="LineNr"> 343 </span>    30 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L344" class="LineNr"> 344 </span>  <span class="subxComment"># if (al != 0) return</span>
+<span id="L345" class="LineNr"> 345 </span>  3c 00  <span class="subxComment"># compare al, 0</span>
+<span id="L346" class="LineNr"> 346 </span>  75 77  <span class="subxComment"># jump to epilogue if != [label]</span>
+<span id="L347" class="LineNr"> 347 </span><span class="subxComment"># 230:</span>
+<span id="L348" class="LineNr"> 348 </span>  <span class="subxH1Comment"># - read keycode</span>
+<span id="L349" class="LineNr"> 349 </span>  e4 60  <span class="subxComment"># al &lt;- port 0x60</span>
+<span id="L350" class="LineNr"> 350 </span>  <span class="subxH1Comment"># - key released</span>
+<span id="L351" class="LineNr"> 351 </span>  <span class="subxComment"># if (al == 0xaa) shift = false  # left shift is being lifted</span>
+<span id="L352" class="LineNr"> 352 </span>  3c aa  <span class="subxComment"># compare al, 0xaa</span>
+<span id="L353" class="LineNr"> 353 </span>  75 0a  <span class="subxComment"># jump to $1 if != [label]</span>
+<span id="L354" class="LineNr"> 354 </span>  <span class="subxComment"># *shift = 0</span>
+<span id="L355" class="LineNr"> 355 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
+<span id="L356" class="LineNr"> 356 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
+<span id="L357" class="LineNr"> 357 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L358" class="LineNr"> 358 </span>    00 00 00 00  <span class="subxComment"># imm32</span>
+<span id="L359" class="LineNr"> 359 </span><span class="subxComment"># 240:</span>
+<span id="L360" class="LineNr"> 360 </span><span class="subxComment"># $1:</span>
+<span id="L361" class="LineNr"> 361 </span>  <span class="subxComment"># if (al == 0xb6) shift = false  # right shift is being lifted</span>
+<span id="L362" class="LineNr"> 362 </span>  3c b6  <span class="subxComment"># compare al, 0xb6</span>
+<span id="L363" class="LineNr"> 363 </span>  75 0a  <span class="subxComment"># jump to $1 if != [label]</span>
+<span id="L364" class="LineNr"> 364 </span>  <span class="subxComment"># *shift = 0</span>
+<span id="L365" class="LineNr"> 365 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
+<span id="L366" class="LineNr"> 366 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
+<span id="L367" class="LineNr"> 367 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L368" class="LineNr"> 368 </span>    00 00 00 00  <span class="subxComment"># imm32</span>
+<span id="L369" class="LineNr"> 369 </span><span class="subxComment"># $2:</span>
+<span id="L370" class="LineNr"> 370 </span>  <span class="subxComment"># if (al &amp; 0x80) a key is being lifted; return</span>
+<span id="L371" class="LineNr"> 371 </span>  50  <span class="subxComment"># push eax</span>
+<span id="L372" class="LineNr"> 372 </span>  24 80  <span class="subxComment"># al &lt;- and 0x80</span>
+<span id="L373" class="LineNr"> 373 </span>  3c 00  <span class="subxComment"># compare al, 0</span>
+<span id="L374" class="LineNr"> 374 </span>  58  <span class="subxComment"># pop to eax (without touching flags)</span>
+<span id="L375" class="LineNr"> 375 </span>  75 51  <span class="subxComment"># jump to epilogue if != [label]</span>
+<span id="L376" class="LineNr"> 376 </span><span class="subxComment"># 256:</span>
+<span id="L377" class="LineNr"> 377 </span>  <span class="subxH1Comment"># - key pressed</span>
+<span id="L378" class="LineNr"> 378 </span>  <span class="subxComment"># if (al == 0x2a) shift = true, return  # left shift pressed</span>
+<span id="L379" class="LineNr"> 379 </span>  3c 2a  <span class="subxComment"># compare al, 0x2a</span>
+<span id="L380" class="LineNr"> 380 </span>  75 0c  <span class="subxComment"># jump to $3 if != [label]</span>
+<span id="L381" class="LineNr"> 381 </span>  <span class="subxComment"># *shift = 1</span>
+<span id="L382" class="LineNr"> 382 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
+<span id="L383" class="LineNr"> 383 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
+<span id="L384" class="LineNr"> 384 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L385" class="LineNr"> 385 </span>    01 00 00 00  <span class="subxComment"># imm32</span>
+<span id="L386" class="LineNr"> 386 </span>  eb 41 <span class="subxComment"># jump to epilogue [label]</span>
+<span id="L387" class="LineNr"> 387 </span><span class="subxComment"># 266:</span>
+<span id="L388" class="LineNr"> 388 </span><span class="subxComment"># $3:</span>
+<span id="L389" class="LineNr"> 389 </span>  <span class="subxComment"># if (al == 0x36) shift = true, return  # right shift pressed</span>
+<span id="L390" class="LineNr"> 390 </span>  3c 36  <span class="subxComment"># compare al, 0x36</span>
+<span id="L391" class="LineNr"> 391 </span>  75 0c  <span class="subxComment"># jump to $4 if != [label]</span>
+<span id="L392" class="LineNr"> 392 </span>  <span class="subxComment"># *shift = 1</span>
+<span id="L393" class="LineNr"> 393 </span>  c7  <span class="subxComment"># copy imm32 to rm32</span>
+<span id="L394" class="LineNr"> 394 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/copy 101/rm32/use-disp32</span>
+<span id="L395" class="LineNr"> 395 </span>    10 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L396" class="LineNr"> 396 </span>    01 00 00 00  <span class="subxComment"># imm32</span>
+<span id="L397" class="LineNr"> 397 </span>  eb 31 <span class="subxComment"># jump to epilogue [label]</span>
+<span id="L398" class="LineNr"> 398 </span><span class="subxComment"># 276:</span>
+<span id="L399" class="LineNr"> 399 </span><span class="subxComment"># $4:</span>
+<span id="L400" class="LineNr"> 400 </span>  <span class="subxH1Comment"># - convert key to character</span>
+<span id="L401" class="LineNr"> 401 </span>  <span class="subxComment"># if (shift) use keyboard normal map</span>
+<span id="L402" class="LineNr"> 402 </span>  81  <span class="subxComment"># operate on rm32 and imm32</span>
+<span id="L403" class="LineNr"> 403 </span>    3d  <span class="subxComment"># 00/mod/indirect 111/subop/compare 101/rm32/use-disp32</span>
+<span id="L404" class="LineNr"> 404 </span>    10 80 00 00  <span class="subxComment"># disp32 = shift [label]</span>
+<span id="L405" class="LineNr"> 405 </span>    00 00 00 00  <span class="subxComment"># imm32</span>
+<span id="L406" class="LineNr"> 406 </span>  74 08  <span class="subxComment"># jump to $5 if = [label]</span>
+<span id="L407" class="LineNr"> 407 </span>  <span class="subxComment"># otherwise use keyboard shift map</span>
+<span id="L408" class="LineNr"> 408 </span>  <span class="subxComment"># al &lt;- *(keyboard shift map + eax)</span>
+<span id="L409" class="LineNr"> 409 </span>  8a  <span class="subxComment"># copy m8 at rm32 to r8</span>
+<span id="L410" class="LineNr"> 410 </span>    80  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span>
+<span id="L411" class="LineNr"> 411 </span>    00 87 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L412" class="LineNr"> 412 </span>  eb 06  <span class="subxComment"># jump to $6 [label]</span>
+<span id="L413" class="LineNr"> 413 </span><span class="subxComment"># 28a:</span>
+<span id="L414" class="LineNr"> 414 </span><span class="subxComment"># $5:</span>
+<span id="L415" class="LineNr"> 415 </span>  <span class="subxComment"># al &lt;- *(keyboard normal map + eax)</span>
+<span id="L416" class="LineNr"> 416 </span>  8a  <span class="subxComment"># copy m8 at rm32 to r8</span>
+<span id="L417" class="LineNr"> 417 </span>    80  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 000/rm32/eax</span>
+<span id="L418" class="LineNr"> 418 </span>    00 86 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L419" class="LineNr"> 419 </span><span class="subxComment"># $6:</span>
+<span id="L420" class="LineNr"> 420 </span>  <span class="subxH1Comment"># - if there's no character mapping, return</span>
+<span id="L421" class="LineNr"> 421 </span>  3c 00  <span class="subxComment"># compare al, 0</span>
+<span id="L422" class="LineNr"> 422 </span>  74 13  <span class="subxComment"># jump to epilogue if = [label]</span>
+<span id="L423" class="LineNr"> 423 </span><span class="subxComment"># 294:</span>
+<span id="L424" class="LineNr"> 424 </span>  <span class="subxH1Comment"># - store al in keyboard buffer</span>
+<span id="L425" class="LineNr"> 425 </span>  88  <span class="subxComment"># copy r8 to m8 at r32</span>
+<span id="L426" class="LineNr"> 426 </span>    81  <span class="subxComment"># 10/mod/*+disp32 000/r8/al 001/rm32/ecx</span>
+<span id="L427" class="LineNr"> 427 </span>    30 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L428" class="LineNr"> 428 </span>  <span class="subxComment"># increment index</span>
+<span id="L429" class="LineNr"> 429 </span>  fe  <span class="subxComment"># increment byte</span>
+<span id="L430" class="LineNr"> 430 </span>    05  <span class="subxComment"># 00/mod/indirect 000/subop/increment 101/rm32/use-disp32</span>
+<span id="L431" class="LineNr"> 431 </span>    28 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L432" class="LineNr"> 432 </span>  <span class="subxComment"># clear top nibble of index (keyboard buffer is circular)</span>
+<span id="L433" class="LineNr"> 433 </span>  80  <span class="subxComment"># and byte</span>
+<span id="L434" class="LineNr"> 434 </span>    25  <span class="subxComment"># 00/mod/indirect 100/subop/and 101/rm32/use-disp32</span>
+<span id="L435" class="LineNr"> 435 </span>    28 80 00 00  <span class="subxComment"># disp32 [label]</span>
+<span id="L436" class="LineNr"> 436 </span>    0f  <span class="subxComment"># imm8</span>
+<span id="L437" class="LineNr"> 437 </span><span class="subxComment"># 2a9:</span>
+<span id="L438" class="LineNr"> 438 </span>  <span class="subxComment"># epilogue</span>
+<span id="L439" class="LineNr"> 439 </span>  61  <span class="subxComment"># pop all registers</span>
+<span id="L440" class="LineNr"> 440 </span>  fb  <span class="subxComment"># enable interrupts</span>
+<span id="L441" class="LineNr"> 441 </span>  cf  <span class="subxComment"># iret</span>
+<span id="L442" class="LineNr"> 442 </span>
+<span id="L443" class="LineNr"> 443 </span><span class="subxComment"># padding</span>
+<span id="L444" class="LineNr"> 444 </span><span class="subxComment"># 2aa:</span>
+<span id="L445" class="LineNr"> 445 </span>                              00 00 00 00 00 00
+<span id="L446" class="LineNr"> 446 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L447" class="LineNr"> 447 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L448" class="LineNr"> 448 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L449" class="LineNr"> 449 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L450" class="LineNr"> 450 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L451" class="LineNr"> 451 </span><span class="subxComment"># 300:</span>
+<span id="L452" class="LineNr"> 452 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L453" class="LineNr"> 453 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L454" class="LineNr"> 454 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L455" class="LineNr"> 455 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L456" class="LineNr"> 456 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L457" class="LineNr"> 457 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L458" class="LineNr"> 458 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L459" class="LineNr"> 459 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L460" class="LineNr"> 460 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L461" class="LineNr"> 461 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L462" class="LineNr"> 462 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L463" class="LineNr"> 463 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L464" class="LineNr"> 464 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L465" class="LineNr"> 465 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L466" class="LineNr"> 466 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L467" class="LineNr"> 467 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L468" class="LineNr"> 468 </span>
+<span id="L469" class="LineNr"> 469 </span><span class="subxComment"># offset 400 (address 0x8000): interrupt handler data</span>
+<span id="L470" class="LineNr"> 470 </span><span class="subxComment"># idt_descriptor:</span>
+<span id="L471" class="LineNr"> 471 </span>  ff 03  <span class="subxComment"># idt_end - idt_start - 1</span>
+<span id="L472" class="LineNr"> 472 </span>  00 82 00 00  <span class="subxComment"># start = idt_start [label]</span>
+<span id="L473" class="LineNr"> 473 </span>
+<span id="L474" class="LineNr"> 474 </span><span class="subxComment"># padding</span>
+<span id="L475" class="LineNr"> 475 </span><span class="subxComment"># 406:</span>
+<span id="L476" class="LineNr"> 476 </span>                  00 00 00 00 00 00 00 00 00 00
+<span id="L477" class="LineNr"> 477 </span>
+<span id="L478" class="LineNr"> 478 </span><span class="subxComment"># 410:</span>
+<span id="L479" class="LineNr"> 479 </span><span class="subxComment"># var shift: boolean</span>
+<span id="L480" class="LineNr"> 480 </span>  00 00 00 00
+<span id="L481" class="LineNr"> 481 </span>
+<span id="L482" class="LineNr"> 482 </span><span class="subxComment"># padding</span>
+<span id="L483" class="LineNr"> 483 </span><span class="subxComment"># 414:</span>
+<span id="L484" class="LineNr"> 484 </span>            00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L485" class="LineNr"> 485 </span>00 00 00 00 00 00 00 00
+<span id="L486" class="LineNr"> 486 </span>
+<span id="L487" class="LineNr"> 487 </span><span class="subxComment"># 428:</span>
+<span id="L488" class="LineNr"> 488 </span><span class="subxComment"># var keyboard circular buffer</span>
+<span id="L489" class="LineNr"> 489 </span><span class="subxComment"># write index: nibble</span>
+<span id="L490" class="LineNr"> 490 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span>
+<span id="L491" class="LineNr"> 491 </span>  00 00 00 00
+<span id="L492" class="LineNr"> 492 </span><span class="subxComment"># 42c:</span>
+<span id="L493" class="LineNr"> 493 </span><span class="subxComment"># read index: nibble</span>
+<span id="L494" class="LineNr"> 494 </span><span class="subxComment"># still take up 4 bytes so SubX can handle it</span>
+<span id="L495" class="LineNr"> 495 </span>  00 00 00 00
+<span id="L496" class="LineNr"> 496 </span><span class="subxComment"># 430:</span>
+<span id="L497" class="LineNr"> 497 </span><span class="subxComment"># circular buffer: byte[16]</span>
+<span id="L498" class="LineNr"> 498 </span>  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L499" class="LineNr"> 499 </span>
+<span id="L500" class="LineNr"> 500 </span><span class="subxComment"># padding</span>
+<span id="L501" class="LineNr"> 501 </span><span class="subxComment"># 440:</span>
+<span id="L502" class="LineNr"> 502 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L503" class="LineNr"> 503 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L504" class="LineNr"> 504 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L505" class="LineNr"> 505 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L506" class="LineNr"> 506 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L507" class="LineNr"> 507 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L508" class="LineNr"> 508 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L509" class="LineNr"> 509 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L510" class="LineNr"> 510 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L511" class="LineNr"> 511 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L512" class="LineNr"> 512 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L513" class="LineNr"> 513 </span>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+<span id="L514" class="LineNr"> 514 </span>
+<span id="L515" class="LineNr"> 515 </span><span class="subxComment"># offset 500 (address 0x8100):</span>
+<span id="L516" class="Folded"> 516 </span><span class="Folded">+-- 53 lines: # video mode info ---------------------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L569" class="LineNr"> 569 </span>
+<span id="L570" class="LineNr"> 570 </span><span class="subxComment"># offset 600 (address 0x8200):</span>
+<span id="L571" class="Folded"> 571 </span><span class="Folded">+--161 lines: # interrupt descriptor table ----------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L732" class="LineNr"> 732 </span>
+<span id="L733" class="LineNr"> 733 </span><span class="subxComment">## the rest of this file has data</span>
+<span id="L734" class="LineNr"> 734 </span>
+<span id="L735" class="LineNr"> 735 </span><span class="subxComment"># offset a00 (address 0x8600):</span>
+<span id="L736" class="Folded"> 736 </span><span class="Folded">+--152 lines: # translating keys to ASCII -----------------------------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L888" class="LineNr"> 888 </span>
+<span id="L889" class="LineNr"> 889 </span><span class="subxComment"># offset 1000 (address 0x8c00)</span>
+<span id="L890" class="Folded"> 890 </span><span class="Folded">+--236 lines: # Bitmaps for some ASCII characters (soon Unicode) ------------------------------------------------------------------------------------------------------------------------</span>
+<span id="L1126" class="LineNr">1126 </span>
+<span id="L1127" class="LineNr">1127 </span><span class="subxComment"># offset 1800 (address 0x9400)</span>
+<span id="L1128" class="LineNr">1128 </span>
+<span id="L1129" class="LineNr">1129 </span><span class="subxComment"># vim&#0058;ft=subx</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/ex2.mu.html b/html/baremetal/ex2.mu.html
index 585e281d..0f696fcf 100644
--- a/html/baremetal/ex2.mu.html
+++ b/html/baremetal/ex2.mu.html
@@ -71,11 +71,11 @@ if ('onhashchange' in window) {
 <span id="L13" class="LineNr">13 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex2.mu.html#L13'>main</a></span> <span class="Delimiter">{</span>
 <span id="L14" class="LineNr">14 </span>  <span class="PreProc">var</span> y/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L15" class="LineNr">15 </span>  <span class="Delimiter">{</span>
-<span id="L16" class="LineNr">16 </span>    compare y, <span class="Constant">0x300</span>  <span class="muComment"># screen-height = 768</span>
+<span id="L16" class="LineNr">16 </span>    compare y, <span class="Constant">0x300</span>/screen-height=<span class="Constant">768</span>
 <span id="L17" class="LineNr">17 </span>    <span class="PreProc">break-if-&gt;=</span>
 <span id="L18" class="LineNr">18 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L19" class="LineNr">19 </span>    <span class="Delimiter">{</span>
-<span id="L20" class="LineNr">20 </span>      compare x, <span class="Constant">0x400</span>  <span class="muComment"># screen-width = 1024</span>
+<span id="L20" class="LineNr">20 </span>      compare x, <span class="Constant">0x400</span>/screen-width=<span class="Constant">1024</span>
 <span id="L21" class="LineNr">21 </span>      <span class="PreProc">break-if-&gt;=</span>
 <span id="L22" class="LineNr">22 </span>      <span class="PreProc">var</span> color/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy x
 <span id="L23" class="LineNr">23 </span>      color <span class="SpecialChar">&lt;-</span> and <span class="Constant">0xff</span>
diff --git a/html/baremetal/ex3.mu.html b/html/baremetal/ex3.mu.html
index 7b58231f..9da377c2 100644
--- a/html/baremetal/ex3.mu.html
+++ b/html/baremetal/ex3.mu.html
@@ -73,12 +73,12 @@ if ('onhashchange' in window) {
 <span id="L15" class="LineNr">15 </span>  <span class="PreProc">var</span> x/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L16" class="LineNr">16 </span>  <span class="PreProc">var</span> y/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
 <span id="L17" class="LineNr">17 </span>  <span class="Delimiter">{</span>
-<span id="L18" class="LineNr">18 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>  <span class="muComment"># real keyboard</span>
+<span id="L18" class="LineNr">18 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>/keyboard
 <span id="L19" class="LineNr">19 </span>    compare key, <span class="Constant">0</span>
 <span id="L20" class="LineNr">20 </span>    <span class="PreProc">loop-if-=</span>  <span class="muComment"># busy wait</span>
-<span id="L21" class="LineNr">21 </span>    <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, <span class="Constant">0x31</span>  <span class="muComment"># green</span>
+<span id="L21" class="LineNr">21 </span>    <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, <span class="Constant">0x31</span>/green
 <span id="L22" class="LineNr">22 </span>    x <span class="SpecialChar">&lt;-</span> increment
-<span id="L23" class="LineNr">23 </span>    compare x, <span class="Constant">0x400</span>  <span class="muComment"># screen-width</span>
+<span id="L23" class="LineNr">23 </span>    compare x, <span class="Constant">0x400</span>/screen-width=<span class="Constant">1024</span>
 <span id="L24" class="LineNr">24 </span>    <span class="Delimiter">{</span>
 <span id="L25" class="LineNr">25 </span>      <span class="PreProc">break-if-&lt;</span>
 <span id="L26" class="LineNr">26 </span>      y <span class="SpecialChar">&lt;-</span> increment
diff --git a/html/baremetal/ex4.mu.html b/html/baremetal/ex4.mu.html
index 2a44bb75..e1553b88 100644
--- a/html/baremetal/ex4.mu.html
+++ b/html/baremetal/ex4.mu.html
@@ -17,7 +17,6 @@ a { color:inherit; }
 .PreProc { color: #c000c0; }
 .LineNr { }
 .Constant { color: #008787; }
-.SpecialChar { color: #d70000; }
 .Delimiter { color: #c000c0; }
 .muFunction { color: #af5f00; text-decoration: underline; }
 .muComment { color: #005faf; }
@@ -68,9 +67,8 @@ if ('onhashchange' in window) {
 <span id="L10" class="LineNr">10 </span><span class="muComment"># Expected output: letter 'A' in green near the top-left corner of screen</span>
 <span id="L11" class="LineNr">11 </span>
 <span id="L12" class="LineNr">12 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex4.mu.html#L12'>main</a></span> <span class="Delimiter">{</span>
-<span id="L13" class="LineNr">13 </span>  <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x41</span>  <span class="muComment"># 'A'</span>
-<span id="L14" class="LineNr">14 </span>  <a href='500text-screen.mu.html#L68'>draw-grapheme</a> <span class="Constant">0</span>, g, <span class="Constant">2</span>, <span class="Constant">1</span>, <span class="Constant">0xa</span>  <span class="muComment"># x of 2 graphemes = 16px from top-left; y of 1 grapheme = 16px down from top-left</span>
-<span id="L15" class="LineNr">15 </span><span class="Delimiter">}</span>
+<span id="L13" class="LineNr">13 </span>  draw-codepoint <span class="Constant">0</span>/screen, <span class="Constant">0x41</span>/A, <span class="Constant">2</span>/row, <span class="Constant">1</span>/col, <span class="Constant">0xa</span>/fg, <span class="Constant">0</span>/bg
+<span id="L14" class="LineNr">14 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/ex5.mu.html b/html/baremetal/ex5.mu.html
index 1d661e78..4f5f0d2e 100644
--- a/html/baremetal/ex5.mu.html
+++ b/html/baremetal/ex5.mu.html
@@ -69,8 +69,8 @@ if ('onhashchange' in window) {
 <span id="L11" class="LineNr">11 </span><span class="muComment"># Expected output: text in green near the top-left corner of screen</span>
 <span id="L12" class="LineNr">12 </span>
 <span id="L13" class="LineNr">13 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex5.mu.html#L13'>main</a></span> <span class="Delimiter">{</span>
-<span id="L14" class="LineNr">14 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L73'>draw-text-rightward</a> <span class="Constant">0</span>, <span class="Constant">&quot;hello from baremetal Mu!&quot;</span>, <span class="Constant">0x10</span>, <span class="Constant">0x400</span>, <span class="Constant">0x10</span>, <span class="Constant">0xa</span>  <span class="muComment"># xmax = end of screen, plenty of space</span>
-<span id="L15" class="LineNr">15 </span>  dummy <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L73'>draw-text-rightward</a> <span class="Constant">0</span>, <span class="Constant">&quot;you shouldn't see this&quot;</span>, <span class="Constant">0x10</span>, <span class="Constant">0xa0</span>, <span class="Constant">0x30</span>, <span class="Constant">0x3</span>  <span class="muComment"># xmax = 0xa0, which is too narrow</span>
+<span id="L14" class="LineNr">14 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L81'>draw-text-rightward</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;hello from baremetal Mu!&quot;</span>, <span class="Constant">0x10</span>/x, <span class="Constant">0x400</span>/xmax, <span class="Constant">0x10</span>/y, <span class="Constant">0xa</span>/color
+<span id="L15" class="LineNr">15 </span>  dummy <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L81'>draw-text-rightward</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;you shouldn't see this&quot;</span>, <span class="Constant">0x10</span>/x, <span class="Constant">0xa0</span>/xmax, <span class="Constant">0x30</span>/y, <span class="Constant">0x3</span>/color  <span class="muComment"># xmax is too narrow</span>
 <span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
 </pre>
 </body>
diff --git a/html/baremetal/ex6.mu.html b/html/baremetal/ex6.mu.html
index f870f80e..a6f1ce7a 100644
--- a/html/baremetal/ex6.mu.html
+++ b/html/baremetal/ex6.mu.html
@@ -72,21 +72,21 @@ if ('onhashchange' in window) {
 <span id="L14" class="LineNr">14 </span>  <a href='503manhattan-line.mu.html#L1'>draw-box-on-real-screen</a> <span class="Constant">0xf</span>, <span class="Constant">0x1f</span>, <span class="Constant">0x79</span>, <span class="Constant">0x51</span>, <span class="Constant">0x4</span>
 <span id="L15" class="LineNr">15 </span>  <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x20</span>
 <span id="L16" class="LineNr">16 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x20</span>
-<span id="L17" class="LineNr">17 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>, <span class="Constant">&quot;hello &quot;</span>,     <span class="Constant">0x10</span>, <span class="Constant">0x20</span>, <span class="Constant">0x78</span>, <span class="Constant">0x50</span>, x, y, <span class="Constant">0xa</span>  <span class="muComment"># (0x10, 0x20) -&gt; (0x78, 0x50)</span>
-<span id="L18" class="LineNr">18 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>, <span class="Constant">&quot;from &quot;</span>,      <span class="Constant">0x10</span>, <span class="Constant">0x20</span>, <span class="Constant">0x78</span>, <span class="Constant">0x50</span>, x, y, <span class="Constant">0xa</span>
-<span id="L19" class="LineNr">19 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>, <span class="Constant">&quot;baremetal &quot;</span>, <span class="Constant">0x10</span>, <span class="Constant">0x20</span>, <span class="Constant">0x78</span>, <span class="Constant">0x50</span>, x, y, <span class="Constant">0xa</span>
-<span id="L20" class="LineNr">20 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L120'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>, <span class="Constant">&quot;Mu!&quot;</span>,        <span class="Constant">0x10</span>, <span class="Constant">0x20</span>, <span class="Constant">0x78</span>, <span class="Constant">0x50</span>, x, y, <span class="Constant">0xa</span>
+<span id="L17" class="LineNr">17 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;hello &quot;</span>,     <span class="Constant">0x10</span>/xmin, <span class="Constant">0x20</span>/ymin, <span class="Constant">0x78</span>/xmax, <span class="Constant">0x50</span>/ymax, x, y, <span class="Constant">0xa</span>/color
+<span id="L18" class="LineNr">18 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;from &quot;</span>,      <span class="Constant">0x10</span>/xmin, <span class="Constant">0x20</span>/ymin, <span class="Constant">0x78</span>/xmax, <span class="Constant">0x50</span>/ymax, x, y, <span class="Constant">0xa</span>/color
+<span id="L19" class="LineNr">19 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;baremetal &quot;</span>, <span class="Constant">0x10</span>/xmin, <span class="Constant">0x20</span>/ymin, <span class="Constant">0x78</span>/xmax, <span class="Constant">0x50</span>/ymax, x, y, <span class="Constant">0xa</span>/color
+<span id="L20" class="LineNr">20 </span>  x, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L136'>draw-text-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;Mu!&quot;</span>,        <span class="Constant">0x10</span>/xmin, <span class="Constant">0x20</span>/ymin, <span class="Constant">0x78</span>/xmax, <span class="Constant">0x50</span>/ymax, x, y, <span class="Constant">0xa</span>/color
 <span id="L21" class="LineNr">21 </span>
 <span id="L22" class="LineNr">22 </span>  <span class="muComment"># drawing at the cursor in multiple directions</span>
-<span id="L23" class="LineNr">23 </span>  <a href='501draw-text.mu.html#L494'>draw-text-wrapping-down-then-right-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;abc&quot;</span>, <span class="Constant">0xa</span>
-<span id="L24" class="LineNr">24 </span>  <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;def&quot;</span>, <span class="Constant">0xa</span>
+<span id="L23" class="LineNr">23 </span>  <a href='501draw-text.mu.html#L510'>draw-text-wrapping-down-then-right-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;abc&quot;</span>, <span class="Constant">0xa</span>
+<span id="L24" class="LineNr">24 </span>  <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;def&quot;</span>, <span class="Constant">0xa</span>
 <span id="L25" class="LineNr">25 </span>
 <span id="L26" class="LineNr">26 </span>  <span class="muComment"># test drawing near the edge</span>
-<span id="L27" class="LineNr">27 </span>  x <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L73'>draw-text-rightward</a> <span class="Constant">0</span>, <span class="Constant">&quot;R&quot;</span>, <span class="Constant">0x3f8</span>, <span class="Constant">0x400</span>, <span class="Constant">0x100</span>, <span class="Constant">0xa</span>  <span class="muComment"># 0x400 = screen-width</span>
-<span id="L28" class="LineNr">28 </span>  <a href='501draw-text.mu.html#L206'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;wrapped from R&quot;</span>, <span class="Constant">0xa</span>
+<span id="L27" class="LineNr">27 </span>  x <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L81'>draw-text-rightward</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;R&quot;</span>, <span class="Constant">0x3f8</span>/x, <span class="Constant">0x400</span>/xmax=screen-width, <span class="Constant">0x100</span>/y, <span class="Constant">0xa</span>/color
+<span id="L28" class="LineNr">28 </span>  <a href='501draw-text.mu.html#L222'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;wrapped from R&quot;</span>, <span class="Constant">0xa</span>
 <span id="L29" class="LineNr">29 </span>
-<span id="L30" class="LineNr">30 </span>  x <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L376'>draw-text-downward</a> <span class="Constant">0</span>, <span class="Constant">&quot;D&quot;</span>, <span class="Constant">0x100</span>, <span class="Constant">0x2f0</span>, <span class="Constant">0x300</span>, <span class="Constant">0xa</span>  <span class="muComment"># 0x300 = screen-height</span>
-<span id="L31" class="LineNr">31 </span>  <a href='501draw-text.mu.html#L494'>draw-text-wrapping-down-then-right-from-cursor-over-full-screen</a> <span class="Constant">0</span>, <span class="Constant">&quot;wrapped from D&quot;</span>, <span class="Constant">0xa</span>
+<span id="L30" class="LineNr">30 </span>  x <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L392'>draw-text-downward</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;D&quot;</span>, <span class="Constant">0x100</span>/x, <span class="Constant">0x2f0</span>/y, <span class="Constant">0x300</span>/ymax=screen-height, <span class="Constant">0xa</span>/color
+<span id="L31" class="LineNr">31 </span>  <a href='501draw-text.mu.html#L510'>draw-text-wrapping-down-then-right-from-cursor-over-full-screen</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;wrapped from D&quot;</span>, <span class="Constant">0xa</span>
 <span id="L32" class="LineNr">32 </span><span class="Delimiter">}</span>
 </pre>
 </body>
diff --git a/html/baremetal/ex7.mu.html b/html/baremetal/ex7.mu.html
index 3df63b64..0235d49f 100644
--- a/html/baremetal/ex7.mu.html
+++ b/html/baremetal/ex7.mu.html
@@ -70,41 +70,38 @@ if ('onhashchange' in window) {
 <span id="L12" class="LineNr">12 </span>
 <span id="L13" class="LineNr">13 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex7.mu.html#L13'>main</a></span> <span class="Delimiter">{</span>
 <span id="L14" class="LineNr">14 </span>  <span class="PreProc">var</span> space/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x20</span>
-<span id="L15" class="LineNr">15 </span>  <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0</span>
+<span id="L15" class="LineNr">15 </span>  <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <span class="Constant">0</span>/screen, <span class="Constant">0</span>, <span class="Constant">0</span>
 <span id="L16" class="LineNr">16 </span>  <span class="Delimiter">{</span>
-<span id="L17" class="LineNr">17 </span>    <a href='500text-screen.mu.html#L162'>show-cursor</a> <span class="Constant">0</span>, space
-<span id="L18" class="LineNr">18 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>
+<span id="L17" class="LineNr">17 </span>    <a href='500text-screen.mu.html#L180'>show-cursor</a> <span class="Constant">0</span>/screen, space
+<span id="L18" class="LineNr">18 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>/keyboard
 <span id="L19" class="LineNr">19 </span>    <span class="Delimiter">{</span>
-<span id="L20" class="LineNr">20 </span>      compare key, <span class="Constant">0x68</span>  <span class="muComment"># 'h'</span>
+<span id="L20" class="LineNr">20 </span>      compare key, <span class="Constant">0x68</span>/h
 <span id="L21" class="LineNr">21 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L22" class="LineNr">22 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x2d</span>  <span class="muComment"># '-'</span>
-<span id="L23" class="LineNr">23 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">0x31</span>
-<span id="L24" class="LineNr">24 </span>      <a href='501draw-text.mu.html#L3'>cursor-left</a> <span class="Constant">0</span>
-<span id="L25" class="LineNr">25 </span>    <span class="Delimiter">}</span>
-<span id="L26" class="LineNr">26 </span>    <span class="Delimiter">{</span>
-<span id="L27" class="LineNr">27 </span>      compare key, <span class="Constant">0x6a</span>  <span class="muComment"># 'j'</span>
-<span id="L28" class="LineNr">28 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L29" class="LineNr">29 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x7c</span>  <span class="muComment"># '|'</span>
-<span id="L30" class="LineNr">30 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">0x31</span>
-<span id="L31" class="LineNr">31 </span>      <a href='501draw-text.mu.html#L46'>cursor-down</a> <span class="Constant">0</span>
-<span id="L32" class="LineNr">32 </span>    <span class="Delimiter">}</span>
-<span id="L33" class="LineNr">33 </span>    <span class="Delimiter">{</span>
-<span id="L34" class="LineNr">34 </span>      compare key, <span class="Constant">0x6b</span>  <span class="muComment"># 'k'</span>
-<span id="L35" class="LineNr">35 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L36" class="LineNr">36 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x7c</span>  <span class="muComment"># '|'</span>
-<span id="L37" class="LineNr">37 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">0x31</span>
-<span id="L38" class="LineNr">38 </span>      <a href='501draw-text.mu.html#L33'>cursor-up</a> <span class="Constant">0</span>
-<span id="L39" class="LineNr">39 </span>    <span class="Delimiter">}</span>
-<span id="L40" class="LineNr">40 </span>    <span class="Delimiter">{</span>
-<span id="L41" class="LineNr">41 </span>      compare key, <span class="Constant">0x6c</span>  <span class="muComment"># 'l'</span>
-<span id="L42" class="LineNr">42 </span>      <span class="PreProc">break-if-!=</span>
-<span id="L43" class="LineNr">43 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x2d</span>  <span class="muComment"># '-'</span>
-<span id="L44" class="LineNr">44 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">0x31</span>
-<span id="L45" class="LineNr">45 </span>      <a href='501draw-text.mu.html#L16'>cursor-right</a> <span class="Constant">0</span>
-<span id="L46" class="LineNr">46 </span>    <span class="Delimiter">}</span>
-<span id="L47" class="LineNr">47 </span>    <span class="PreProc">loop</span>
-<span id="L48" class="LineNr">48 </span>  <span class="Delimiter">}</span>
-<span id="L49" class="LineNr">49 </span><span class="Delimiter">}</span>
+<span id="L22" class="LineNr">22 </span>      <a href='501draw-text.mu.html#L73'>draw-code-point-at-cursor</a> <span class="Constant">0</span>/screen, <span class="Constant">0x2d</span>/dash, <span class="Constant">0x31</span>/fg, <span class="Constant">0</span>/bg
+<span id="L23" class="LineNr">23 </span>      <a href='501draw-text.mu.html#L3'>move-cursor-left</a> <span class="Constant">0</span>
+<span id="L24" class="LineNr">24 </span>    <span class="Delimiter">}</span>
+<span id="L25" class="LineNr">25 </span>    <span class="Delimiter">{</span>
+<span id="L26" class="LineNr">26 </span>      compare key, <span class="Constant">0x6a</span>/j
+<span id="L27" class="LineNr">27 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L28" class="LineNr">28 </span>      <a href='501draw-text.mu.html#L73'>draw-code-point-at-cursor</a> <span class="Constant">0</span>/screen, <span class="Constant">0x7c</span>/vertical-bar, <span class="Constant">0x31</span>/fg, <span class="Constant">0</span>/bg
+<span id="L29" class="LineNr">29 </span>      <a href='501draw-text.mu.html#L47'>move-cursor-down</a> <span class="Constant">0</span>
+<span id="L30" class="LineNr">30 </span>    <span class="Delimiter">}</span>
+<span id="L31" class="LineNr">31 </span>    <span class="Delimiter">{</span>
+<span id="L32" class="LineNr">32 </span>      compare key, <span class="Constant">0x6b</span>/k
+<span id="L33" class="LineNr">33 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L34" class="LineNr">34 </span>      <a href='501draw-text.mu.html#L73'>draw-code-point-at-cursor</a> <span class="Constant">0</span>/screen, <span class="Constant">0x7c</span>/vertical-bar, <span class="Constant">0x31</span>/fg, <span class="Constant">0</span>/bg
+<span id="L35" class="LineNr">35 </span>      <a href='501draw-text.mu.html#L34'>move-cursor-up</a> <span class="Constant">0</span>
+<span id="L36" class="LineNr">36 </span>    <span class="Delimiter">}</span>
+<span id="L37" class="LineNr">37 </span>    <span class="Delimiter">{</span>
+<span id="L38" class="LineNr">38 </span>      compare key, <span class="Constant">0x6c</span>/l
+<span id="L39" class="LineNr">39 </span>      <span class="PreProc">break-if-!=</span>
+<span id="L40" class="LineNr">40 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: code-point <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x2d</span>/dash
+<span id="L41" class="LineNr">41 </span>      <a href='501draw-text.mu.html#L73'>draw-code-point-at-cursor</a> <span class="Constant">0</span>/screen, <span class="Constant">0x2d</span>/dash, <span class="Constant">0x31</span>/fg, <span class="Constant">0</span>/bg
+<span id="L42" class="LineNr">42 </span>      <a href='501draw-text.mu.html#L16'>move-cursor-right</a> <span class="Constant">0</span>
+<span id="L43" class="LineNr">43 </span>    <span class="Delimiter">}</span>
+<span id="L44" class="LineNr">44 </span>    <span class="PreProc">loop</span>
+<span id="L45" class="LineNr">45 </span>  <span class="Delimiter">}</span>
+<span id="L46" class="LineNr">46 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/baremetal/ex8.mu.html b/html/baremetal/ex8.mu.html
new file mode 100644
index 00000000..aef19cae
--- /dev/null
+++ b/html/baremetal/ex8.mu.html
@@ -0,0 +1,68 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/ex8.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.Constant { color: #008787; }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muComment { color: #005faf; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/ex8.mu'>https://github.com/akkartik/mu/blob/main/baremetal/ex8.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">1 </span><span class="muComment"># Demo of floating-point</span>
+<span id="L2" class="LineNr">2 </span>
+<span id="L3" class="LineNr">3 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex8.mu.html#L3'>main</a></span> <span class="Delimiter">{</span>
+<span id="L4" class="LineNr">4 </span>  <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L5" class="LineNr">5 </span>  <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> convert n
+<span id="L6" class="LineNr">6 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/life.mu.html b/html/baremetal/life.mu.html
new file mode 100644
index 00000000..0d3c9170
--- /dev/null
+++ b/html/baremetal/life.mu.html
@@ -0,0 +1,318 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - baremetal/life.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.PreProc { color: #c000c0; }
+.LineNr { }
+.CommentedCode { color: #8a8a8a; }
+.Delimiter { color: #c000c0; }
+.SpecialChar { color: #d70000; }
+.Constant { color: #008787; }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.muComment { color: #005faf; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/main/baremetal/life.mu'>https://github.com/akkartik/mu/blob/main/baremetal/life.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr">  1 </span><span class="muComment"># Conway's Game of Life</span>
+<span id="L2" class="LineNr">  2 </span><span class="muComment">#</span>
+<span id="L3" class="LineNr">  3 </span><span class="muComment"># To build:</span>
+<span id="L4" class="LineNr">  4 </span><span class="muComment">#   $ ./translate_mu_baremetal baremetal/life.mu</span>
+<span id="L5" class="LineNr">  5 </span><span class="muComment"># To run:</span>
+<span id="L6" class="LineNr">  6 </span><span class="muComment">#   $ qemu-system-i386 disk.img</span>
+<span id="L7" class="LineNr">  7 </span>
+<span id="L8" class="LineNr">  8 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L8'>state</a></span> _grid: (addr array boolean), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
+<span id="L9" class="LineNr">  9 </span>  <span class="muComment"># clip at the edge</span>
+<span id="L10" class="LineNr"> 10 </span>  compare x, <span class="Constant">0</span>
+<span id="L11" class="LineNr"> 11 </span>  <span class="Delimiter">{</span>
+<span id="L12" class="LineNr"> 12 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L13" class="LineNr"> 13 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L14" class="LineNr"> 14 </span>  <span class="Delimiter">}</span>
+<span id="L15" class="LineNr"> 15 </span>  compare y, <span class="Constant">0</span>
+<span id="L16" class="LineNr"> 16 </span>  <span class="Delimiter">{</span>
+<span id="L17" class="LineNr"> 17 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L18" class="LineNr"> 18 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">}</span>
+<span id="L20" class="LineNr"> 20 </span>  compare x, <span class="Constant">0x100</span>/width
+<span id="L21" class="LineNr"> 21 </span>  <span class="Delimiter">{</span>
+<span id="L22" class="LineNr"> 22 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L23" class="LineNr"> 23 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L24" class="LineNr"> 24 </span>  <span class="Delimiter">}</span>
+<span id="L25" class="LineNr"> 25 </span>  compare y, <span class="Constant">0xc0</span>/height
+<span id="L26" class="LineNr"> 26 </span>  <span class="Delimiter">{</span>
+<span id="L27" class="LineNr"> 27 </span>    <span class="PreProc">break-if-&lt;</span>
+<span id="L28" class="LineNr"> 28 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>/false
+<span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
+<span id="L30" class="LineNr"> 30 </span>  <span class="PreProc">var</span> idx/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy y
+<span id="L31" class="LineNr"> 31 </span>  idx <span class="SpecialChar">&lt;-</span> shift-left <span class="Constant">8</span>/log2width
+<span id="L32" class="LineNr"> 32 </span>  idx <span class="SpecialChar">&lt;-</span> add x
+<span id="L33" class="LineNr"> 33 </span>  <span class="PreProc">var</span> grid/<span class="Constant">esi</span>: (addr array boolean) <span class="SpecialChar">&lt;-</span> copy _grid
+<span id="L34" class="LineNr"> 34 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar">&lt;-</span> index grid, idx
+<span id="L35" class="LineNr"> 35 </span>  <span class="PreProc">return</span> *result
+<span id="L36" class="LineNr"> 36 </span><span class="Delimiter">}</span>
+<span id="L37" class="LineNr"> 37 </span>
+<span id="L38" class="LineNr"> 38 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L38'>set-state</a></span> _grid: (addr array boolean), x: int, y: int, val: boolean <span class="Delimiter">{</span>
+<span id="L39" class="LineNr"> 39 </span>  <span class="muComment"># don't bother checking bounds</span>
+<span id="L40" class="LineNr"> 40 </span>  <span class="PreProc">var</span> idx/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy y
+<span id="L41" class="LineNr"> 41 </span>  idx <span class="SpecialChar">&lt;-</span> shift-left <span class="Constant">8</span>/log2width
+<span id="L42" class="LineNr"> 42 </span>  idx <span class="SpecialChar">&lt;-</span> add x
+<span id="L43" class="LineNr"> 43 </span>  <span class="PreProc">var</span> grid/<span class="Constant">esi</span>: (addr array boolean) <span class="SpecialChar">&lt;-</span> copy _grid
+<span id="L44" class="LineNr"> 44 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar">&lt;-</span> index grid, idx
+<span id="L45" class="LineNr"> 45 </span>  <span class="PreProc">var</span> src/<span class="Constant">ecx</span>: boolean <span class="SpecialChar">&lt;-</span> copy val
+<span id="L46" class="LineNr"> 46 </span>  copy-to *result, src
+<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span>
+<span id="L48" class="LineNr"> 48 </span>
+<span id="L49" class="LineNr"> 49 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L49'>num-live-neighbors</a></span> grid: (addr array boolean), x: int, y: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L50" class="LineNr"> 50 </span>  <span class="PreProc">var</span> result/<span class="Constant">edi</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="muComment"># row above: zig</span>
+<span id="L52" class="LineNr"> 52 </span>  decrement y
+<span id="L53" class="LineNr"> 53 </span>  decrement x
+<span id="L54" class="LineNr"> 54 </span>  <span class="PreProc">var</span> s/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L55" class="LineNr"> 55 </span>  <span class="Delimiter">{</span>
+<span id="L56" class="LineNr"> 56 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L57" class="LineNr"> 57 </span>    <span class="PreProc">break-if-=</span>
+<span id="L58" class="LineNr"> 58 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L59" class="LineNr"> 59 </span>  <span class="Delimiter">}</span>
+<span id="L60" class="LineNr"> 60 </span>  increment x
+<span id="L61" class="LineNr"> 61 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L62" class="LineNr"> 62 </span>  <span class="Delimiter">{</span>
+<span id="L63" class="LineNr"> 63 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L64" class="LineNr"> 64 </span>    <span class="PreProc">break-if-=</span>
+<span id="L65" class="LineNr"> 65 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L66" class="LineNr"> 66 </span>  <span class="Delimiter">}</span>
+<span id="L67" class="LineNr"> 67 </span>  increment x
+<span id="L68" class="LineNr"> 68 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L69" class="LineNr"> 69 </span>  <span class="Delimiter">{</span>
+<span id="L70" class="LineNr"> 70 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">break-if-=</span>
+<span id="L72" class="LineNr"> 72 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L73" class="LineNr"> 73 </span>  <span class="Delimiter">}</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="muComment"># curr row: zag</span>
+<span id="L75" class="LineNr"> 75 </span>  increment y
+<span id="L76" class="LineNr"> 76 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L77" class="LineNr"> 77 </span>  <span class="Delimiter">{</span>
+<span id="L78" class="LineNr"> 78 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L79" class="LineNr"> 79 </span>    <span class="PreProc">break-if-=</span>
+<span id="L80" class="LineNr"> 80 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L81" class="LineNr"> 81 </span>  <span class="Delimiter">}</span>
+<span id="L82" class="LineNr"> 82 </span>  subtract-from x, <span class="Constant">2</span>
+<span id="L83" class="LineNr"> 83 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L84" class="LineNr"> 84 </span>  <span class="Delimiter">{</span>
+<span id="L85" class="LineNr"> 85 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L86" class="LineNr"> 86 </span>    <span class="PreProc">break-if-=</span>
+<span id="L87" class="LineNr"> 87 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L88" class="LineNr"> 88 </span>  <span class="Delimiter">}</span>
+<span id="L89" class="LineNr"> 89 </span>  <span class="muComment"># row below: zig</span>
+<span id="L90" class="LineNr"> 90 </span>  increment y
+<span id="L91" class="LineNr"> 91 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L92" class="LineNr"> 92 </span>  <span class="Delimiter">{</span>
+<span id="L93" class="LineNr"> 93 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L94" class="LineNr"> 94 </span>    <span class="PreProc">break-if-=</span>
+<span id="L95" class="LineNr"> 95 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L96" class="LineNr"> 96 </span>  <span class="Delimiter">}</span>
+<span id="L97" class="LineNr"> 97 </span>  increment x
+<span id="L98" class="LineNr"> 98 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L99" class="LineNr"> 99 </span>  <span class="Delimiter">{</span>
+<span id="L100" class="LineNr">100 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L101" class="LineNr">101 </span>    <span class="PreProc">break-if-=</span>
+<span id="L102" class="LineNr">102 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L103" class="LineNr">103 </span>  <span class="Delimiter">}</span>
+<span id="L104" class="LineNr">104 </span>  increment x
+<span id="L105" class="LineNr">105 </span>  s <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L106" class="LineNr">106 </span>  <span class="Delimiter">{</span>
+<span id="L107" class="LineNr">107 </span>    compare s, <span class="Constant">0</span>/false
+<span id="L108" class="LineNr">108 </span>    <span class="PreProc">break-if-=</span>
+<span id="L109" class="LineNr">109 </span>    result <span class="SpecialChar">&lt;-</span> increment
+<span id="L110" class="LineNr">110 </span>  <span class="Delimiter">}</span>
+<span id="L111" class="LineNr">111 </span>  <span class="PreProc">return</span> result
+<span id="L112" class="LineNr">112 </span><span class="Delimiter">}</span>
+<span id="L113" class="LineNr">113 </span>
+<span id="L114" class="LineNr">114 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L114'>step</a></span> old-grid: (addr array boolean), new-grid: (addr array boolean) <span class="Delimiter">{</span>
+<span id="L115" class="LineNr">115 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L116" class="LineNr">116 </span>  <span class="Delimiter">{</span>
+<span id="L117" class="LineNr">117 </span>    compare y, <span class="Constant">0xc0</span>/height
+<span id="L118" class="LineNr">118 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L119" class="LineNr">119 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L120" class="LineNr">120 </span>    <span class="Delimiter">{</span>
+<span id="L121" class="LineNr">121 </span>      compare x, <span class="Constant">0x100</span>/width
+<span id="L122" class="LineNr">122 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L123" class="LineNr">123 </span>      <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L49'>num-live-neighbors</a> old-grid, x, y
+<span id="L124" class="LineNr">124 </span>      <span class="muComment"># if neighbors &lt; 2, die of loneliness</span>
+<span id="L125" class="LineNr">125 </span>      <span class="Delimiter">{</span>
+<span id="L126" class="LineNr">126 </span>        compare n, <span class="Constant">2</span>
+<span id="L127" class="LineNr">127 </span>        <span class="PreProc">break-if-&gt;=</span>
+<span id="L128" class="LineNr">128 </span>        <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, <span class="Constant">0</span>/dead
+<span id="L129" class="LineNr">129 </span>      <span class="Delimiter">}</span>
+<span id="L130" class="LineNr">130 </span>      <span class="muComment"># if neighbors &gt; 3, die of overcrowding</span>
+<span id="L131" class="LineNr">131 </span>      <span class="Delimiter">{</span>
+<span id="L132" class="LineNr">132 </span>        compare n, <span class="Constant">3</span>
+<span id="L133" class="LineNr">133 </span>        <span class="PreProc">break-if-&lt;=</span>
+<span id="L134" class="LineNr">134 </span>        <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, <span class="Constant">0</span>/dead
+<span id="L135" class="LineNr">135 </span>      <span class="Delimiter">}</span>
+<span id="L136" class="LineNr">136 </span>      <span class="muComment"># if neighbors = 2, preserve state</span>
+<span id="L137" class="LineNr">137 </span>      <span class="Delimiter">{</span>
+<span id="L138" class="LineNr">138 </span>        compare n, <span class="Constant">2</span>
+<span id="L139" class="LineNr">139 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L140" class="LineNr">140 </span>        <span class="PreProc">var</span> old-state/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> old-grid, x, y
+<span id="L141" class="LineNr">141 </span>        <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, old-state
+<span id="L142" class="LineNr">142 </span>      <span class="Delimiter">}</span>
+<span id="L143" class="LineNr">143 </span>      <span class="muComment"># if neighbors = 3, cell quickens to life</span>
+<span id="L144" class="LineNr">144 </span>      <span class="Delimiter">{</span>
+<span id="L145" class="LineNr">145 </span>        compare n, <span class="Constant">3</span>
+<span id="L146" class="LineNr">146 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L147" class="LineNr">147 </span>        <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, <span class="Constant">1</span>/live
+<span id="L148" class="LineNr">148 </span>      <span class="Delimiter">}</span>
+<span id="L149" class="LineNr">149 </span>      x <span class="SpecialChar">&lt;-</span> increment
+<span id="L150" class="LineNr">150 </span>      <span class="PreProc">loop</span>
+<span id="L151" class="LineNr">151 </span>    <span class="Delimiter">}</span>
+<span id="L152" class="LineNr">152 </span>    y <span class="SpecialChar">&lt;-</span> increment
+<span id="L153" class="LineNr">153 </span>    <span class="PreProc">loop</span>
+<span id="L154" class="LineNr">154 </span>  <span class="Delimiter">}</span>
+<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span>
+<span id="L156" class="LineNr">156 </span>
+<span id="L157" class="LineNr">157 </span><span class="muComment"># color a square of size 'side' starting at x*side, y*side</span>
+<span id="L158" class="LineNr">158 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L158'>render-square</a></span> _x: int, _y: int, color: int <span class="Delimiter">{</span>
+<span id="L159" class="LineNr">159 </span>  <span class="PreProc">var</span> y/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _y
+<span id="L160" class="LineNr">160 </span>  y <span class="SpecialChar">&lt;-</span> shift-left <span class="Constant">2</span>/log2side
+<span id="L161" class="LineNr">161 </span>  <span class="PreProc">var</span> side/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">1</span>
+<span id="L162" class="LineNr">162 </span>  side <span class="SpecialChar">&lt;-</span> shift-left <span class="Constant">2</span>/log2side
+<span id="L163" class="LineNr">163 </span>  <span class="PreProc">var</span> ymax/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy y
+<span id="L164" class="LineNr">164 </span>  ymax <span class="SpecialChar">&lt;-</span> add side
+<span id="L165" class="LineNr">165 </span>  <span class="Delimiter">{</span>
+<span id="L166" class="LineNr">166 </span>    compare y, ymax
+<span id="L167" class="LineNr">167 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L168" class="LineNr">168 </span>    <span class="Delimiter">{</span>
+<span id="L169" class="LineNr">169 </span>      <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _x
+<span id="L170" class="LineNr">170 </span>      x <span class="SpecialChar">&lt;-</span> shift-left <span class="Constant">2</span>/log2side
+<span id="L171" class="LineNr">171 </span>      <span class="PreProc">var</span> xmax/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy x
+<span id="L172" class="LineNr">172 </span>      xmax <span class="SpecialChar">&lt;-</span> add side
+<span id="L173" class="LineNr">173 </span>      <span class="Delimiter">{</span>
+<span id="L174" class="LineNr">174 </span>        compare x, xmax
+<span id="L175" class="LineNr">175 </span>        <span class="PreProc">break-if-&gt;=</span>
+<span id="L176" class="LineNr">176 </span>        <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, color
+<span id="L177" class="LineNr">177 </span>        x <span class="SpecialChar">&lt;-</span> increment
+<span id="L178" class="LineNr">178 </span>        <span class="PreProc">loop</span>
+<span id="L179" class="LineNr">179 </span>      <span class="Delimiter">}</span>
+<span id="L180" class="LineNr">180 </span>    <span class="Delimiter">}</span>
+<span id="L181" class="LineNr">181 </span>    y <span class="SpecialChar">&lt;-</span> increment
+<span id="L182" class="LineNr">182 </span>    <span class="PreProc">loop</span>
+<span id="L183" class="LineNr">183 </span>  <span class="Delimiter">}</span>
+<span id="L184" class="LineNr">184 </span><span class="Delimiter">}</span>
+<span id="L185" class="LineNr">185 </span>
+<span id="L186" class="LineNr">186 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L186'>render</a></span> grid: (addr array boolean) <span class="Delimiter">{</span>
+<span id="L187" class="LineNr">187 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L188" class="LineNr">188 </span>  <span class="Delimiter">{</span>
+<span id="L189" class="LineNr">189 </span>    compare y, <span class="Constant">0xc0</span>/height
+<span id="L190" class="LineNr">190 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L191" class="LineNr">191 </span>    <span class="PreProc">var</span> x/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L192" class="LineNr">192 </span>    <span class="Delimiter">{</span>
+<span id="L193" class="LineNr">193 </span>      compare x, <span class="Constant">0x100</span>/width
+<span id="L194" class="LineNr">194 </span>      <span class="PreProc">break-if-&gt;=</span>
+<span id="L195" class="LineNr">195 </span>      <span class="PreProc">var</span> <a href='life.mu.html#L8'>state</a>/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
+<span id="L196" class="LineNr">196 </span>      compare <a href='life.mu.html#L8'>state</a>, <span class="Constant">0</span>/false
+<span id="L197" class="LineNr">197 </span>      <span class="Delimiter">{</span>
+<span id="L198" class="LineNr">198 </span>        <span class="PreProc">break-if-=</span>
+<span id="L199" class="LineNr">199 </span>        <a href='life.mu.html#L158'>render-square</a> x, y, <span class="Constant">3</span>/cyan
+<span id="L200" class="LineNr">200 </span>      <span class="Delimiter">}</span>
+<span id="L201" class="LineNr">201 </span>      compare <a href='life.mu.html#L8'>state</a>, <span class="Constant">0</span>/false
+<span id="L202" class="LineNr">202 </span>      <span class="Delimiter">{</span>
+<span id="L203" class="LineNr">203 </span>        <span class="PreProc">break-if-!=</span>
+<span id="L204" class="LineNr">204 </span>        <a href='life.mu.html#L158'>render-square</a> x, y, <span class="Constant">0</span>/black
+<span id="L205" class="LineNr">205 </span>      <span class="Delimiter">}</span>
+<span id="L206" class="LineNr">206 </span>      x <span class="SpecialChar">&lt;-</span> increment
+<span id="L207" class="LineNr">207 </span>      <span class="PreProc">loop</span>
+<span id="L208" class="LineNr">208 </span>    <span class="Delimiter">}</span>
+<span id="L209" class="LineNr">209 </span>    y <span class="SpecialChar">&lt;-</span> increment
+<span id="L210" class="LineNr">210 </span>    <span class="PreProc">loop</span>
+<span id="L211" class="LineNr">211 </span>  <span class="Delimiter">}</span>
+<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='life.mu.html#L214'>main</a></span> <span class="Delimiter">{</span>
+<span id="L215" class="LineNr">215 </span><span class="CommentedCode">#?   # allocate on the stack</span>
+<span id="L216" class="LineNr">216 </span><span class="CommentedCode">#?   var grid1-storage: (array boolean 0xc000)  # width * height</span>
+<span id="L217" class="LineNr">217 </span><span class="CommentedCode">#?   var grid1/esi: (addr array boolean) &lt;- address grid1-storage</span>
+<span id="L218" class="LineNr">218 </span><span class="CommentedCode">#?   var grid2-storage: (array boolean 0xc000)  # width * height</span>
+<span id="L219" class="LineNr">219 </span><span class="CommentedCode">#?   var grid2/edi: (addr array boolean) &lt;- address grid2-storage</span>
+<span id="L220" class="LineNr">220 </span>  <span class="muComment"># allocate on the heap</span>
+<span id="L221" class="LineNr">221 </span>  <span class="PreProc">var</span> grid1-storage: (handle array boolean)
+<span id="L222" class="LineNr">222 </span>  <span class="PreProc">var</span> grid1-ah/<span class="Constant">eax</span>: (addr handle array boolean) <span class="SpecialChar">&lt;-</span> address grid1-storage
+<span id="L223" class="LineNr">223 </span>  populate grid1-ah, <span class="Constant">0xc000</span>  <span class="muComment"># width * height</span>
+<span id="L224" class="LineNr">224 </span>  <span class="PreProc">var</span> _grid1/<span class="Constant">eax</span>: (addr array boolean) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *grid1-ah
+<span id="L225" class="LineNr">225 </span>  <span class="PreProc">var</span> grid1/<span class="Constant">esi</span>: (addr array boolean) <span class="SpecialChar">&lt;-</span> copy _grid1
+<span id="L226" class="LineNr">226 </span>  <span class="PreProc">var</span> grid2-storage: (handle array boolean)
+<span id="L227" class="LineNr">227 </span>  <span class="PreProc">var</span> grid2-ah/<span class="Constant">eax</span>: (addr handle array boolean) <span class="SpecialChar">&lt;-</span> address grid2-storage
+<span id="L228" class="LineNr">228 </span>  populate grid2-ah, <span class="Constant">0xc000</span>  <span class="muComment"># width * height</span>
+<span id="L229" class="LineNr">229 </span>  <span class="PreProc">var</span> _grid2/<span class="Constant">eax</span>: (addr array boolean) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *grid2-ah
+<span id="L230" class="LineNr">230 </span>  <span class="PreProc">var</span> grid2/<span class="Constant">edi</span>: (addr array boolean) <span class="SpecialChar">&lt;-</span> copy _grid2
+<span id="L231" class="LineNr">231 </span>  <span class="muComment"># initialize grid1</span>
+<span id="L232" class="LineNr">232 </span>  <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x80</span>, <span class="Constant">0x5f</span>, <span class="Constant">1</span>/live
+<span id="L233" class="LineNr">233 </span>  <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x81</span>, <span class="Constant">0x5f</span>, <span class="Constant">1</span>/live
+<span id="L234" class="LineNr">234 </span>  <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x7f</span>, <span class="Constant">0x60</span>, <span class="Constant">1</span>/live
+<span id="L235" class="LineNr">235 </span>  <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x80</span>, <span class="Constant">0x60</span>, <span class="Constant">1</span>/live
+<span id="L236" class="LineNr">236 </span>  <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x80</span>, <span class="Constant">0x61</span>, <span class="Constant">1</span>/live
+<span id="L237" class="LineNr">237 </span>  <span class="muComment"># render grid1</span>
+<span id="L238" class="LineNr">238 </span>  <a href='life.mu.html#L186'>render</a> grid1
+<span id="L239" class="LineNr">239 </span>  <span class="Delimiter">{</span>
+<span id="L240" class="LineNr">240 </span>    <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>/keyboard
+<span id="L241" class="LineNr">241 </span><span class="CommentedCode">#?     # press key to step</span>
+<span id="L242" class="LineNr">242 </span><span class="CommentedCode">#?     compare key, 0</span>
+<span id="L243" class="LineNr">243 </span><span class="CommentedCode">#?     loop-if-=</span>
+<span id="L244" class="LineNr">244 </span>    <span class="muComment"># press key to quit</span>
+<span id="L245" class="LineNr">245 </span>    compare key, <span class="Constant">0</span>
+<span id="L246" class="LineNr">246 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L247" class="LineNr">247 </span>    <span class="muComment"># iter: grid1 -&gt; grid2</span>
+<span id="L248" class="LineNr">248 </span>    <a href='life.mu.html#L114'>step</a> grid1, grid2
+<span id="L249" class="LineNr">249 </span>    <a href='life.mu.html#L186'>render</a> grid2
+<span id="L250" class="LineNr">250 </span>    <span class="muComment"># iter: grid2 -&gt; grid1</span>
+<span id="L251" class="LineNr">251 </span>    <a href='life.mu.html#L114'>step</a> grid2, grid1
+<span id="L252" class="LineNr">252 </span>    <a href='life.mu.html#L186'>render</a> grid1
+<span id="L253" class="LineNr">253 </span>    <span class="PreProc">loop</span>
+<span id="L254" class="LineNr">254 </span>  <span class="Delimiter">}</span>
+<span id="L255" class="LineNr">255 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->
diff --git a/html/baremetal/mu-init.subx.html b/html/baremetal/mu-init.subx.html
index 9886ded4..440aab67 100644
--- a/html/baremetal/mu-init.subx.html
+++ b/html/baremetal/mu-init.subx.html
@@ -70,9 +70,9 @@ if ('onhashchange' in window) {
 <span id="L15" class="LineNr">15 </span>{
 <span id="L16" class="LineNr">16 </span>  3d/compare-eax-and 0/imm32
 <span id="L17" class="LineNr">17 </span>  75/jump-if-!= <span class="Constant">break</span>/disp8
-<span id="L18" class="LineNr">18 </span>  (<a href='500text-screen.mu.html#L209'>clear-real-screen</a>)
-<span id="L19" class="LineNr">19 </span>  c7 0/subop/copy *<span class="SpecialChar"><a href='103grapheme.subx.html#L167'>Real-screen-cursor-x</a></span> 0/imm32
-<span id="L20" class="LineNr">20 </span>  c7 0/subop/copy *<span class="SpecialChar"><a href='103grapheme.subx.html#L169'>Real-screen-cursor-y</a></span> 0/imm32
+<span id="L18" class="LineNr">18 </span>  (<a href='500text-screen.mu.html#L226'>clear-real-screen</a>)
+<span id="L19" class="LineNr">19 </span>  c7 0/subop/copy *<span class="SpecialChar"><a href='103grapheme.subx.html#L170'>Real-screen-cursor-x</a></span> 0/imm32
+<span id="L20" class="LineNr">20 </span>  c7 0/subop/copy *<span class="SpecialChar"><a href='103grapheme.subx.html#L172'>Real-screen-cursor-y</a></span> 0/imm32
 <span id="L21" class="LineNr">21 </span>  (main)
 <span id="L22" class="LineNr">22 </span>}
 <span id="L23" class="LineNr">23 </span>
diff --git a/html/baremetal/rpn.mu.html b/html/baremetal/rpn.mu.html
index 1ce25cca..1fd836f0 100644
--- a/html/baremetal/rpn.mu.html
+++ b/html/baremetal/rpn.mu.html
@@ -16,9 +16,9 @@ a { color:inherit; }
 * { font-size:12pt; font-size: 1em; }
 .PreProc { color: #c000c0; }
 .LineNr { }
-.Delimiter { color: #c000c0; }
-.SpecialChar { color: #d70000; }
 .Constant { color: #008787; }
+.SpecialChar { color: #d70000; }
+.Delimiter { color: #c000c0; }
 .muFunction { color: #af5f00; text-decoration: underline; }
 .muComment { color: #005faf; }
 -->
@@ -73,7 +73,7 @@ if ('onhashchange' in window) {
 <span id="L15" class="LineNr"> 15 </span><span class="muComment">#</span>
 <span id="L16" class="LineNr"> 16 </span><span class="muComment"># Error handling is non-existent. This is just a prototype.</span>
 <span id="L17" class="LineNr"> 17 </span>
-<span id="L18" class="LineNr"> 18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L18'>main</a></span><span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
+<span id="L18" class="LineNr"> 18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L18'>main</a></span> <span class="Delimiter">{</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="PreProc">var</span> in-storage: (stream byte <span class="Constant">0x80</span>)
 <span id="L20" class="LineNr"> 20 </span>  <span class="PreProc">var</span> in/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address in-storage
 <span id="L21" class="LineNr"> 21 </span>  <span class="PreProc">var</span> y/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
@@ -81,134 +81,133 @@ if ('onhashchange' in window) {
 <span id="L23" class="LineNr"> 23 </span>  <span class="muComment"># read-eval-print loop</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Delimiter">{</span>
 <span id="L25" class="LineNr"> 25 </span>    <span class="muComment"># print prompt</span>
-<span id="L26" class="LineNr"> 26 </span>    <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L73'>draw-text-rightward</a> <span class="Constant">0</span>, <span class="Constant">&quot;&gt; &quot;</span>, <span class="Constant">0</span>, <span class="Constant">0x80</span>, y, <span class="Constant">3</span>
-<span id="L27" class="LineNr"> 27 </span>    <a href='500text-screen.mu.html#L115'>set-cursor-position</a> <span class="Constant">0</span>, x, y
+<span id="L26" class="LineNr"> 26 </span>    <span class="PreProc">var</span> x/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L81'>draw-text-rightward</a> <span class="Constant">0</span>/screen, <span class="Constant">&quot;&gt; &quot;</span>, <span class="Constant">0</span>/x, <span class="Constant">0x80</span>/xmax, y, <span class="Constant">3</span>/fg/cyan, <span class="Constant">0</span>/bg
+<span id="L27" class="LineNr"> 27 </span>    <a href='500text-screen.mu.html#L133'>set-cursor-position</a> <span class="Constant">0</span>/screen, x, y
 <span id="L28" class="LineNr"> 28 </span>    <span class="muComment"># read line from keyboard</span>
 <span id="L29" class="LineNr"> 29 </span>    <a href='106stream.subx.html#L20'>clear-stream</a> in
 <span id="L30" class="LineNr"> 30 </span>    <span class="Delimiter">{</span>
-<span id="L31" class="LineNr"> 31 </span>      <a href='500text-screen.mu.html#L162'>show-cursor</a> <span class="Constant">0</span>, space
-<span id="L32" class="LineNr"> 32 </span>      <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>
-<span id="L33" class="LineNr"> 33 </span>      compare key, <span class="Constant">0xa</span>  <span class="muComment"># newline</span>
+<span id="L31" class="LineNr"> 31 </span>      <a href='500text-screen.mu.html#L180'>show-cursor</a> <span class="Constant">0</span>/screen, space
+<span id="L32" class="LineNr"> 32 </span>      <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='102keyboard.subx.html#L9'>read-key</a> <span class="Constant">0</span>/keyboard
+<span id="L33" class="LineNr"> 33 </span>      compare key, <span class="Constant">0xa</span>/newline
 <span id="L34" class="LineNr"> 34 </span>      <span class="PreProc">break-if-=</span>
 <span id="L35" class="LineNr"> 35 </span>      compare key, <span class="Constant">0</span>
 <span id="L36" class="LineNr"> 36 </span>      <span class="PreProc">loop-if-=</span>
 <span id="L37" class="LineNr"> 37 </span>      <span class="PreProc">var</span> key2/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy key
 <span id="L38" class="LineNr"> 38 </span>      <a href='115write-byte.subx.html#L12'>append-byte</a> in, key2
 <span id="L39" class="LineNr"> 39 </span>      <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> copy key2
-<span id="L40" class="LineNr"> 40 </span>      <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, g, <span class="Constant">0xf</span>
-<span id="L41" class="LineNr"> 41 </span>      <a href='501draw-text.mu.html#L16'>cursor-right</a> <span class="Constant">0</span>
+<span id="L40" class="LineNr"> 40 </span>      <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, g, <span class="Constant">0xf</span>/fg, <span class="Constant">0</span>/bg
+<span id="L41" class="LineNr"> 41 </span>      <a href='501draw-text.mu.html#L16'>move-cursor-right</a> <span class="Constant">0</span>
 <span id="L42" class="LineNr"> 42 </span>      <span class="PreProc">loop</span>
 <span id="L43" class="LineNr"> 43 </span>    <span class="Delimiter">}</span>
 <span id="L44" class="LineNr"> 44 </span>    <span class="muComment"># clear cursor</span>
-<span id="L45" class="LineNr"> 45 </span>    <a href='501draw-text.mu.html#L63'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>, space, <span class="Constant">3</span>  <span class="muComment"># 3=foreground color, which is never used</span>
+<span id="L45" class="LineNr"> 45 </span>    <a href='501draw-text.mu.html#L65'>draw-grapheme-at-cursor</a> <span class="Constant">0</span>/screen, space, <span class="Constant">3</span>/fg/never-used, <span class="Constant">0</span>/bg
 <span id="L46" class="LineNr"> 46 </span>    <span class="muComment"># parse and eval</span>
-<span id="L47" class="LineNr"> 47 </span>    <span class="PreProc">var</span> out/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L64'>simplify</a> in
+<span id="L47" class="LineNr"> 47 </span>    <span class="PreProc">var</span> out/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L63'>simplify</a> in
 <span id="L48" class="LineNr"> 48 </span>    <span class="muComment"># print</span>
 <span id="L49" class="LineNr"> 49 </span>    y <span class="SpecialChar">&lt;-</span> increment
-<span id="L50" class="LineNr"> 50 </span>    out, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L292'>draw-int32-decimal-wrapping-right-then-down</a> <span class="Constant">0</span>, out, <span class="Constant">0</span>, y, <span class="Constant">0x80</span>, <span class="Constant">0x30</span>, <span class="Constant">0</span>, y, <span class="Constant">7</span>
+<span id="L50" class="LineNr"> 50 </span>    out, y <span class="SpecialChar">&lt;-</span> <a href='501draw-text.mu.html#L308'>draw-int32-decimal-wrapping-right-then-down</a> <span class="Constant">0</span>/screen, out, <span class="Constant">0</span>/xmin, y, <span class="Constant">0x80</span>/xmax, <span class="Constant">0x30</span>/ymax, <span class="Constant">0</span>/x, y, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
 <span id="L51" class="LineNr"> 51 </span>    <span class="muComment"># newline</span>
 <span id="L52" class="LineNr"> 52 </span>    y <span class="SpecialChar">&lt;-</span> increment
 <span id="L53" class="LineNr"> 53 </span>    <span class="muComment">#</span>
 <span id="L54" class="LineNr"> 54 </span>    <span class="PreProc">loop</span>
 <span id="L55" class="LineNr"> 55 </span>  <span class="Delimiter">}</span>
-<span id="L56" class="LineNr"> 56 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>
-<span id="L57" class="LineNr"> 57 </span><span class="Delimiter">}</span>
-<span id="L58" class="LineNr"> 58 </span>
-<span id="L59" class="LineNr"> 59 </span><span class="PreProc">type</span> <a href='rpn.mu.html#L59'>int-stack</a> <span class="Delimiter">{</span>
-<span id="L60" class="LineNr"> 60 </span>  data: (handle array int)
-<span id="L61" class="LineNr"> 61 </span>  top: int
-<span id="L62" class="LineNr"> 62 </span><span class="Delimiter">}</span>
-<span id="L63" class="LineNr"> 63 </span>
-<span id="L64" class="LineNr"> 64 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L64'>simplify</a></span> in: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> word-storage: slice
-<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> word/<span class="Constant">ecx</span>: (addr slice) <span class="SpecialChar">&lt;-</span> address word-storage
-<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> stack-storage: <a href='rpn.mu.html#L59'>int-stack</a>
-<span id="L68" class="LineNr"> 68 </span>  <span class="PreProc">var</span> stack/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L59'>int-stack</a>) <span class="SpecialChar">&lt;-</span> address stack-storage
-<span id="L69" class="LineNr"> 69 </span>  <a href='rpn.mu.html#L118'>initialize-int-stack</a> stack, <span class="Constant">0x10</span>
-<span id="L70" class="LineNr"> 70 </span>  $simplify:word-loop: <span class="Delimiter">{</span>
-<span id="L71" class="LineNr"> 71 </span>    <a href='127next-word.subx.html#L11'>next-word</a> in, word
-<span id="L72" class="LineNr"> 72 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L9'>slice-empty?</a> word
-<span id="L73" class="LineNr"> 73 </span>    compare done?, <span class="Constant">0</span>
-<span id="L74" class="LineNr"> 74 </span>    <span class="PreProc">break-if-!=</span>
-<span id="L75" class="LineNr"> 75 </span>    <span class="muComment"># if word is an operator, perform it</span>
-<span id="L76" class="LineNr"> 76 </span>    <span class="Delimiter">{</span>
-<span id="L77" class="LineNr"> 77 </span>      <span class="PreProc">var</span> is-add?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L120'>slice-equal?</a> word, <span class="Constant">&quot;+&quot;</span>
-<span id="L78" class="LineNr"> 78 </span>      compare is-add?, <span class="Constant">0</span>
-<span id="L79" class="LineNr"> 79 </span>      <span class="PreProc">break-if-=</span>
-<span id="L80" class="LineNr"> 80 </span>      <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L81" class="LineNr"> 81 </span>      <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
-<span id="L82" class="LineNr"> 82 </span>      <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L83" class="LineNr"> 83 </span>      a <span class="SpecialChar">&lt;-</span> add b
-<span id="L84" class="LineNr"> 84 </span>      <a href='rpn.mu.html#L126'>push-int-stack</a> stack, a
-<span id="L85" class="LineNr"> 85 </span>      <span class="PreProc">loop</span> $simplify:word-loop
-<span id="L86" class="LineNr"> 86 </span>    <span class="Delimiter">}</span>
-<span id="L87" class="LineNr"> 87 </span>    <span class="Delimiter">{</span>
-<span id="L88" class="LineNr"> 88 </span>      <span class="PreProc">var</span> is-sub?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L120'>slice-equal?</a> word, <span class="Constant">&quot;-&quot;</span>
-<span id="L89" class="LineNr"> 89 </span>      compare is-sub?, <span class="Constant">0</span>
-<span id="L90" class="LineNr"> 90 </span>      <span class="PreProc">break-if-=</span>
-<span id="L91" class="LineNr"> 91 </span>      <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L92" class="LineNr"> 92 </span>      <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
-<span id="L93" class="LineNr"> 93 </span>      <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L94" class="LineNr"> 94 </span>      a <span class="SpecialChar">&lt;-</span> subtract b
-<span id="L95" class="LineNr"> 95 </span>      <a href='rpn.mu.html#L126'>push-int-stack</a> stack, a
-<span id="L96" class="LineNr"> 96 </span>      <span class="PreProc">loop</span> $simplify:word-loop
-<span id="L97" class="LineNr"> 97 </span>    <span class="Delimiter">}</span>
-<span id="L98" class="LineNr"> 98 </span>    <span class="Delimiter">{</span>
-<span id="L99" class="LineNr"> 99 </span>      <span class="PreProc">var</span> is-mul?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L120'>slice-equal?</a> word, <span class="Constant">&quot;*&quot;</span>
-<span id="L100" class="LineNr">100 </span>      compare is-mul?, <span class="Constant">0</span>
-<span id="L101" class="LineNr">101 </span>      <span class="PreProc">break-if-=</span>
-<span id="L102" class="LineNr">102 </span>      <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L103" class="LineNr">103 </span>      <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
-<span id="L104" class="LineNr">104 </span>      <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L105" class="LineNr">105 </span>      a <span class="SpecialChar">&lt;-</span> multiply b
-<span id="L106" class="LineNr">106 </span>      <a href='rpn.mu.html#L126'>push-int-stack</a> stack, a
-<span id="L107" class="LineNr">107 </span>      <span class="PreProc">loop</span> $simplify:word-loop
-<span id="L108" class="LineNr">108 </span>    <span class="Delimiter">}</span>
-<span id="L109" class="LineNr">109 </span>    <span class="muComment"># otherwise it's an int</span>
-<span id="L110" class="LineNr">110 </span>    <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> word
-<span id="L111" class="LineNr">111 </span>    <a href='rpn.mu.html#L126'>push-int-stack</a> stack, n
-<span id="L112" class="LineNr">112 </span>    <span class="PreProc">loop</span>
-<span id="L113" class="LineNr">113 </span>  <span class="Delimiter">}</span>
-<span id="L114" class="LineNr">114 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L138'>pop-int-stack</a> stack
-<span id="L115" class="LineNr">115 </span>  <span class="PreProc">return</span> result
-<span id="L116" class="LineNr">116 </span><span class="Delimiter">}</span>
-<span id="L117" class="LineNr">117 </span>
-<span id="L118" class="LineNr">118 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L118'>initialize-int-stack</a></span> _self: (addr <a href='rpn.mu.html#L59'>int-stack</a>), n: int <span class="Delimiter">{</span>
-<span id="L119" class="LineNr">119 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L59'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
-<span id="L120" class="LineNr">120 </span>  <span class="PreProc">var</span> d/<span class="Constant">edi</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> get self, data
-<span id="L121" class="LineNr">121 </span>  populate d, n
-<span id="L122" class="LineNr">122 </span>  <span class="PreProc">var</span> top/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get self, top
-<span id="L123" class="LineNr">123 </span>  copy-to *top, <span class="Constant">0</span>
-<span id="L124" class="LineNr">124 </span><span class="Delimiter">}</span>
-<span id="L125" class="LineNr">125 </span>
-<span id="L126" class="LineNr">126 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L126'>push-int-stack</a></span> _self: (addr <a href='rpn.mu.html#L59'>int-stack</a>), _val: int <span class="Delimiter">{</span>
-<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L59'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
-<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get self, top
-<span id="L129" class="LineNr">129 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> get self, data
-<span id="L130" class="LineNr">130 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
-<span id="L131" class="LineNr">131 </span>  <span class="PreProc">var</span> top/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
-<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, top
-<span id="L133" class="LineNr">133 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _val
-<span id="L134" class="LineNr">134 </span>  copy-to *dest-addr, val
-<span id="L135" class="LineNr">135 </span>  add-to *top-addr, <span class="Constant">1</span>
-<span id="L136" class="LineNr">136 </span><span class="Delimiter">}</span>
-<span id="L137" class="LineNr">137 </span>
-<span id="L138" class="LineNr">138 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L138'>pop-int-stack</a></span> _self: (addr <a href='rpn.mu.html#L59'>int-stack</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
-<span id="L139" class="LineNr">139 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L59'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
-<span id="L140" class="LineNr">140 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get self, top
-<span id="L141" class="LineNr">141 </span>  <span class="Delimiter">{</span>
-<span id="L142" class="LineNr">142 </span>    compare *top-addr, <span class="Constant">0</span>
-<span id="L143" class="LineNr">143 </span>    <span class="PreProc">break-if-&gt;</span>
-<span id="L144" class="LineNr">144 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>
-<span id="L145" class="LineNr">145 </span>  <span class="Delimiter">}</span>
-<span id="L146" class="LineNr">146 </span>  subtract-from *top-addr, <span class="Constant">1</span>
-<span id="L147" class="LineNr">147 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> get self, data
-<span id="L148" class="LineNr">148 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
-<span id="L149" class="LineNr">149 </span>  <span class="PreProc">var</span> top/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
-<span id="L150" class="LineNr">150 </span>  <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, top
-<span id="L151" class="LineNr">151 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *result-addr
-<span id="L152" class="LineNr">152 </span>  <span class="PreProc">return</span> val
-<span id="L153" class="LineNr">153 </span><span class="Delimiter">}</span>
+<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">}</span>
+<span id="L57" class="LineNr"> 57 </span>
+<span id="L58" class="LineNr"> 58 </span><span class="PreProc">type</span> <a href='rpn.mu.html#L58'>int-stack</a> <span class="Delimiter">{</span>
+<span id="L59" class="LineNr"> 59 </span>  data: (handle array int)
+<span id="L60" class="LineNr"> 60 </span>  top: int
+<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">}</span>
+<span id="L62" class="LineNr"> 62 </span>
+<span id="L63" class="LineNr"> 63 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L63'>simplify</a></span> in: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L64" class="LineNr"> 64 </span>  <span class="PreProc">var</span> word-storage: slice
+<span id="L65" class="LineNr"> 65 </span>  <span class="PreProc">var</span> word/<span class="Constant">ecx</span>: (addr slice) <span class="SpecialChar">&lt;-</span> address word-storage
+<span id="L66" class="LineNr"> 66 </span>  <span class="PreProc">var</span> stack-storage: <a href='rpn.mu.html#L58'>int-stack</a>
+<span id="L67" class="LineNr"> 67 </span>  <span class="PreProc">var</span> stack/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L58'>int-stack</a>) <span class="SpecialChar">&lt;-</span> address stack-storage
+<span id="L68" class="LineNr"> 68 </span>  <a href='rpn.mu.html#L117'>initialize-int-stack</a> stack, <span class="Constant">0x10</span>
+<span id="L69" class="LineNr"> 69 </span>  $simplify:word-loop: <span class="Delimiter">{</span>
+<span id="L70" class="LineNr"> 70 </span>    <a href='127next-word.subx.html#L11'>next-word</a> in, word
+<span id="L71" class="LineNr"> 71 </span>    <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L9'>slice-empty?</a> word
+<span id="L72" class="LineNr"> 72 </span>    compare done?, <span class="Constant">0</span>
+<span id="L73" class="LineNr"> 73 </span>    <span class="PreProc">break-if-!=</span>
+<span id="L74" class="LineNr"> 74 </span>    <span class="muComment"># if word is an operator, perform it</span>
+<span id="L75" class="LineNr"> 75 </span>    <span class="Delimiter">{</span>
+<span id="L76" class="LineNr"> 76 </span>      <span class="PreProc">var</span> is-add?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L120'>slice-equal?</a> word, <span class="Constant">&quot;+&quot;</span>
+<span id="L77" class="LineNr"> 77 </span>      compare is-add?, <span class="Constant">0</span>
+<span id="L78" class="LineNr"> 78 </span>      <span class="PreProc">break-if-=</span>
+<span id="L79" class="LineNr"> 79 </span>      <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L80" class="LineNr"> 80 </span>      <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
+<span id="L81" class="LineNr"> 81 </span>      <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L82" class="LineNr"> 82 </span>      a <span class="SpecialChar">&lt;-</span> add b
+<span id="L83" class="LineNr"> 83 </span>      <a href='rpn.mu.html#L125'>push-int-stack</a> stack, a
+<span id="L84" class="LineNr"> 84 </span>      <span class="PreProc">loop</span> $simplify:word-loop
+<span id="L85" class="LineNr"> 85 </span>    <span class="Delimiter">}</span>
+<span id="L86" class="LineNr"> 86 </span>    <span class="Delimiter">{</span>
+<span id="L87" class="LineNr"> 87 </span>      <span class="PreProc">var</span> is-sub?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L120'>slice-equal?</a> word, <span class="Constant">&quot;-&quot;</span>
+<span id="L88" class="LineNr"> 88 </span>      compare is-sub?, <span class="Constant">0</span>
+<span id="L89" class="LineNr"> 89 </span>      <span class="PreProc">break-if-=</span>
+<span id="L90" class="LineNr"> 90 </span>      <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L91" class="LineNr"> 91 </span>      <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
+<span id="L92" class="LineNr"> 92 </span>      <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L93" class="LineNr"> 93 </span>      a <span class="SpecialChar">&lt;-</span> subtract b
+<span id="L94" class="LineNr"> 94 </span>      <a href='rpn.mu.html#L125'>push-int-stack</a> stack, a
+<span id="L95" class="LineNr"> 95 </span>      <span class="PreProc">loop</span> $simplify:word-loop
+<span id="L96" class="LineNr"> 96 </span>    <span class="Delimiter">}</span>
+<span id="L97" class="LineNr"> 97 </span>    <span class="Delimiter">{</span>
+<span id="L98" class="LineNr"> 98 </span>      <span class="PreProc">var</span> is-mul?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='123slice.subx.html#L120'>slice-equal?</a> word, <span class="Constant">&quot;*&quot;</span>
+<span id="L99" class="LineNr"> 99 </span>      compare is-mul?, <span class="Constant">0</span>
+<span id="L100" class="LineNr">100 </span>      <span class="PreProc">break-if-=</span>
+<span id="L101" class="LineNr">101 </span>      <span class="PreProc">var</span> _b/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L102" class="LineNr">102 </span>      <span class="PreProc">var</span> b/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy _b
+<span id="L103" class="LineNr">103 </span>      <span class="PreProc">var</span> a/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L104" class="LineNr">104 </span>      a <span class="SpecialChar">&lt;-</span> multiply b
+<span id="L105" class="LineNr">105 </span>      <a href='rpn.mu.html#L125'>push-int-stack</a> stack, a
+<span id="L106" class="LineNr">106 </span>      <span class="PreProc">loop</span> $simplify:word-loop
+<span id="L107" class="LineNr">107 </span>    <span class="Delimiter">}</span>
+<span id="L108" class="LineNr">108 </span>    <span class="muComment"># otherwise it's an int</span>
+<span id="L109" class="LineNr">109 </span>    <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> word
+<span id="L110" class="LineNr">110 </span>    <a href='rpn.mu.html#L125'>push-int-stack</a> stack, n
+<span id="L111" class="LineNr">111 </span>    <span class="PreProc">loop</span>
+<span id="L112" class="LineNr">112 </span>  <span class="Delimiter">}</span>
+<span id="L113" class="LineNr">113 </span>  <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='rpn.mu.html#L137'>pop-int-stack</a> stack
+<span id="L114" class="LineNr">114 </span>  <span class="PreProc">return</span> result
+<span id="L115" class="LineNr">115 </span><span class="Delimiter">}</span>
+<span id="L116" class="LineNr">116 </span>
+<span id="L117" class="LineNr">117 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L117'>initialize-int-stack</a></span> _self: (addr <a href='rpn.mu.html#L58'>int-stack</a>), n: int <span class="Delimiter">{</span>
+<span id="L118" class="LineNr">118 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L58'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L119" class="LineNr">119 </span>  <span class="PreProc">var</span> d/<span class="Constant">edi</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> get self, data
+<span id="L120" class="LineNr">120 </span>  populate d, n
+<span id="L121" class="LineNr">121 </span>  <span class="PreProc">var</span> top/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> get self, top
+<span id="L122" class="LineNr">122 </span>  copy-to *top, <span class="Constant">0</span>
+<span id="L123" class="LineNr">123 </span><span class="Delimiter">}</span>
+<span id="L124" class="LineNr">124 </span>
+<span id="L125" class="LineNr">125 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L125'>push-int-stack</a></span> _self: (addr <a href='rpn.mu.html#L58'>int-stack</a>), _val: int <span class="Delimiter">{</span>
+<span id="L126" class="LineNr">126 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L58'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L127" class="LineNr">127 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get self, top
+<span id="L128" class="LineNr">128 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> get self, data
+<span id="L129" class="LineNr">129 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L130" class="LineNr">130 </span>  <span class="PreProc">var</span> top/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L131" class="LineNr">131 </span>  <span class="PreProc">var</span> dest-addr/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, top
+<span id="L132" class="LineNr">132 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy _val
+<span id="L133" class="LineNr">133 </span>  copy-to *dest-addr, val
+<span id="L134" class="LineNr">134 </span>  add-to *top-addr, <span class="Constant">1</span>
+<span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span>
+<span id="L136" class="LineNr">136 </span>
+<span id="L137" class="LineNr">137 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='rpn.mu.html#L137'>pop-int-stack</a></span> _self: (addr <a href='rpn.mu.html#L58'>int-stack</a>)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L138" class="LineNr">138 </span>  <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='rpn.mu.html#L58'>int-stack</a>) <span class="SpecialChar">&lt;-</span> copy _self
+<span id="L139" class="LineNr">139 </span>  <span class="PreProc">var</span> top-addr/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> get self, top
+<span id="L140" class="LineNr">140 </span>  <span class="Delimiter">{</span>
+<span id="L141" class="LineNr">141 </span>    compare *top-addr, <span class="Constant">0</span>
+<span id="L142" class="LineNr">142 </span>    <span class="PreProc">break-if-&gt;</span>
+<span id="L143" class="LineNr">143 </span>    <span class="PreProc">return</span> <span class="Constant">0</span>
+<span id="L144" class="LineNr">144 </span>  <span class="Delimiter">}</span>
+<span id="L145" class="LineNr">145 </span>  subtract-from *top-addr, <span class="Constant">1</span>
+<span id="L146" class="LineNr">146 </span>  <span class="PreProc">var</span> data-ah/<span class="Constant">edx</span>: (addr handle array int) <span class="SpecialChar">&lt;-</span> get self, data
+<span id="L147" class="LineNr">147 </span>  <span class="PreProc">var</span> data/<span class="Constant">eax</span>: (addr array int) <span class="SpecialChar">&lt;-</span> <a href='120allocate.subx.html#L226'>lookup</a> *data-ah
+<span id="L148" class="LineNr">148 </span>  <span class="PreProc">var</span> top/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy *top-addr
+<span id="L149" class="LineNr">149 </span>  <span class="PreProc">var</span> result-addr/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> index data, top
+<span id="L150" class="LineNr">150 </span>  <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy *result-addr
+<span id="L151" class="LineNr">151 </span>  <span class="PreProc">return</span> val
+<span id="L152" class="LineNr">152 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>