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Kartik Agaram 2021-09-01 13:22:16 -07:00
parent d2f96cb0b6
commit 207c6ef945
16 changed files with 14919 additions and 10431 deletions
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@ -57,369 +57,408 @@ if ('onhashchange' in window) {
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Use the built-in font to draw glyphs to screen.</span>
<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># <a href="https://en.wikipedia.org/wiki/Glyph#Typography">https://en.wikipedia.org/wiki/Glyph#Typography</a></span>
<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># The Mu computer can currently only render glyphs corresponding to single</span>
<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># code points. No combining characters.</span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># <a href="https://en.wikipedia.org/wiki/Code_point">https://en.wikipedia.org/wiki/Code_point</a></span>
<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># <a href="https://en.wikipedia.org/wiki/Combining_character">https://en.wikipedia.org/wiki/Combining_character</a></span>
<span id="L7" class="LineNr"> 7 </span><span class="subxComment">#</span>
<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># We need to do this in machine code because Mu doesn't have global variables</span>
<span id="L9" class="LineNr"> 9 </span><span class="subxComment"># yet (for the start of the font).</span>
<span id="L10" class="LineNr"> 10 </span>
<span id="L11" class="LineNr"> 11 </span>== code
<span id="L12" class="LineNr"> 12 </span>
<span id="L13" class="LineNr"> 13 </span><span class="subxComment"># The Mu computer's screen is 1024px wide and 768px tall.</span>
<span id="L14" class="LineNr"> 14 </span><span class="subxComment"># The Mu computer's font is 8px wide and 16px tall.</span>
<span id="L15" class="LineNr"> 15 </span><span class="subxComment"># Therefore 'x' here is in [0, 128), and 'y' is in [0, 48)</span>
<span id="L16" class="LineNr"> 16 </span><span class="subxComment"># Doesn't update the cursor; where the cursor should go after printing the</span>
<span id="L17" class="LineNr"> 17 </span><span class="subxComment"># current code-point is a higher-level concern.</span>
<span id="L18" class="LineNr"> 18 </span><span class="subxFunction">draw-code-point-on-real-screen</span>: <span class="subxComment"># c: code-point, x: int, y: int, color: int, background-color: int -&gt; _/eax</span>
<span id="L19" class="LineNr"> 19 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L20" class="LineNr"> 20 </span> 55/push-ebp
<span id="L21" class="LineNr"> 21 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L22" class="LineNr"> 22 </span> <span class="subxComment">#</span>
<span id="L23" class="LineNr"> 23 </span> (<a href='103glyph.subx.html#L74'>draw-code-point-on-screen-buffer</a> *<span class="SpecialChar"><a href='boot.subx.html#L675'>Video-memory-addr</a></span> *(ebp+8) *(ebp+0xc) *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) 0x80 0x30) <span class="subxComment"># =&gt; eax</span>
<span id="L24" class="LineNr"> 24 </span><span class="Constant">$draw-code-point-on-real-screen:end</span>:
<span id="L25" class="LineNr"> 25 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L26" class="LineNr"> 26 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L27" class="LineNr"> 27 </span> 5d/pop-to-ebp
<span id="L28" class="LineNr"> 28 </span> c3/return
<span id="L29" class="LineNr"> 29 </span>
<span id="L30" class="LineNr"> 30 </span><span class="subxFunction">draw-code-point-on-screen-array</span>: <span class="subxComment"># screen-data: (addr array byte), c: code-point, x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int -&gt; _/eax: int</span>
<span id="L31" class="LineNr"> 31 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L32" class="LineNr"> 32 </span> 55/push-ebp
<span id="L33" class="LineNr"> 33 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L34" class="LineNr"> 34 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L35" class="LineNr"> 35 </span> 51/push-ecx
<span id="L36" class="LineNr"> 36 </span> 52/push-edx
<span id="L37" class="LineNr"> 37 </span> <span class="subxComment"># if screen-width*screen-height &gt; len(screen-data) abort</span>
<span id="L38" class="LineNr"> 38 </span> {
<span id="L39" class="LineNr"> 39 </span> <span class="subxComment"># ecx = len(screen-data)</span>
<span id="L40" class="LineNr"> 40 </span> 8b/-&gt; *(ebp+8) 1/r32/ecx
<span id="L41" class="LineNr"> 41 </span> 8b/-&gt; *ecx 1/r32/ecx
<span id="L42" class="LineNr"> 42 </span> <span class="subxComment"># eax = screen-width*screen-height</span>
<span id="L43" class="LineNr"> 43 </span> ba/copy-to-edx 0/imm32
<span id="L44" class="LineNr"> 44 </span> 8b/-&gt; *(ebp+0x20) 0/r32/eax
<span id="L45" class="LineNr"> 45 </span> f7 4/subop/multiply-into-eax *(ebp+0x24)
<span id="L46" class="LineNr"> 46 </span> 81 7/subop/compare %edx 0/imm32
<span id="L47" class="LineNr"> 47 </span> 0f 85/jump-if-!= $draw-code-point-on-screen-array:overflow/disp32
<span id="L48" class="LineNr"> 48 </span> <span class="subxComment"># if (eax &gt; ecx) abort</span>
<span id="L49" class="LineNr"> 49 </span> 39/compare %eax 1/r32/ecx
<span id="L50" class="LineNr"> 50 </span> 0f 8f/jump-if-&gt; $draw-code-point-on-screen-array:<a href='317abort.subx.html#L5'>abort</a>/disp32
<span id="L51" class="LineNr"> 51 </span> }
<span id="L52" class="LineNr"> 52 </span> <span class="subxComment"># eax = screen-data+4 (skip length)</span>
<span id="L53" class="LineNr"> 53 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L54" class="LineNr"> 54 </span> 05/add-to-eax 4/imm32
<span id="L55" class="LineNr"> 55 </span> <span class="subxComment">#</span>
<span id="L56" class="LineNr"> 56 </span> (<a href='103glyph.subx.html#L74'>draw-code-point-on-screen-buffer</a> %eax *(ebp+0xc) *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24)) <span class="subxComment"># =&gt; eax</span>
<span id="L57" class="LineNr"> 57 </span><span class="Constant">$draw-code-point-on-screen-array:end</span>:
<span id="L58" class="LineNr"> 58 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L59" class="LineNr"> 59 </span> 5a/pop-to-edx
<span id="L60" class="LineNr"> 60 </span> 59/pop-to-ecx
<span id="L61" class="LineNr"> 61 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L62" class="LineNr"> 62 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L63" class="LineNr"> 63 </span> 5d/pop-to-ebp
<span id="L64" class="LineNr"> 64 </span> c3/return
<span id="L65" class="LineNr"> 65 </span>
<span id="L66" class="LineNr"> 66 </span><span class="Constant">$draw-code-point-on-screen-array:overflow</span>:
<span id="L67" class="LineNr"> 67 </span> (<a href='317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;draw-code-point-on-screen-array: <a href='500fake-screen.mu.html#L14'>screen</a> dimensions too large&quot;</span>)
<span id="L68" class="LineNr"> 68 </span>
<span id="L69" class="LineNr"> 69 </span><span class="Constant">$draw-code-point-on-screen-array:<a href='317abort.subx.html#L5'>abort</a></span>:
<span id="L70" class="LineNr"> 70 </span> (<a href='317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;draw-code-point-on-screen-array: coordinates are off the screen. Are the <a href='500fake-screen.mu.html#L14'>screen</a> dimensions correct?&quot;</span>)
<span id="L71" class="LineNr"> 71 </span>
<span id="L72" class="LineNr"> 72 </span><span class="subxComment"># 'buffer' here is not a valid Mu type: a naked address without a length.</span>
<span id="L73" class="LineNr"> 73 </span><span class="subxComment"># returns number of 8x16 units printed to screen (1 or 2).</span>
<span id="L74" class="LineNr"> 74 </span><span class="subxFunction">draw-code-point-on-screen-buffer</span>: <span class="subxComment"># buffer: (addr byte), c: code-point, x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int -&gt; _/eax: int</span>
<span id="L75" class="LineNr"> 75 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L76" class="LineNr"> 76 </span> 55/push-ebp
<span id="L77" class="LineNr"> 77 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L78" class="LineNr"> 78 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L79" class="LineNr"> 79 </span> 56/push-esi
<span id="L80" class="LineNr"> 80 </span> <span class="subxComment"># switch screen-width and screen-height from code-point to pixel units</span>
<span id="L81" class="LineNr"> 81 </span> c1 4/subop/shift-left *(ebp+20) 3/imm8/log2-font-width
<span id="L82" class="LineNr"> 82 </span> c1 4/subop/shift-left *(ebp+24) 4/imm8/log2-font-height
<span id="L83" class="LineNr"> 83 </span> <span class="subxComment"># esi = c</span>
<span id="L84" class="LineNr"> 84 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L85" class="LineNr"> 85 </span> <span class="subxComment"># if (c &gt;= 4352) return # unicode planes supported: latin, greek, cyrillic, armenian, hebrew, arabic, syriac, thaana, n'ko, indian (iscii), sinhala, thai, lao, tibetan, myanmar, georgian</span>
<span id="L86" class="LineNr"> 86 </span> <span class="subxComment"># next few to support: CJK, ethiopic, cherokee, ...</span>
<span id="L87" class="LineNr"> 87 </span> 81 7/subop/compare %esi 0x1100/imm32=4352
<span id="L88" class="LineNr"> 88 </span> 0f 8d/jump-if-&gt;= $draw-code-point-on-screen-buffer:end/disp32
<span id="L89" class="LineNr"> 89 </span> <span class="subxComment"># var letter-bitmap/esi = font[c]</span>
<span id="L90" class="LineNr"> 90 </span> 69/multiply %esi 0x21/imm32/glyph-size 6/r32/esi
<span id="L91" class="LineNr"> 91 </span> 81 0/subop/add %esi 0x0010000c/imm32/Font <span class="subxComment"># see boot.subx</span>
<span id="L92" class="LineNr"> 92 </span> <span class="subxComment"># dispatch based on letter-bitmap-&gt;size</span>
<span id="L93" class="LineNr"> 93 </span> b8/copy-to-eax 0/imm32
<span id="L94" class="LineNr"> 94 </span> 8a/byte-&gt; *esi 0/r32/AL
<span id="L95" class="LineNr"> 95 </span> 46/increment-esi <span class="subxComment"># skip size</span>
<span id="L96" class="LineNr"> 96 </span> 3d/compare-eax-and 8/imm32
<span id="L97" class="LineNr"> 97 </span> {
<span id="L98" class="LineNr"> 98 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8
<span id="L99" class="LineNr"> 99 </span> (<a href='103glyph.subx.html#L138'>draw-narrow-code-point-on-screen-buffer</a> *(ebp+8) %esi *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
<span id="L100" class="LineNr">100 </span> b8/copy-to-eax 1/imm32
<span id="L101" class="LineNr">101 </span> eb/jump $draw-code-point-on-screen-buffer:end/disp8
<span id="L102" class="LineNr">102 </span> }
<span id="L103" class="LineNr">103 </span> (<a href='103glyph.subx.html#L184'>draw-wide-code-point-on-screen-buffer</a> *(ebp+8) %esi *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
<span id="L104" class="LineNr">104 </span> b8/copy-to-eax 2/imm32
<span id="L105" class="LineNr">105 </span><span class="Constant">$draw-code-point-on-screen-buffer:end</span>:
<span id="L106" class="LineNr">106 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L107" class="LineNr">107 </span> 5e/pop-to-esi
<span id="L108" class="LineNr">108 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L109" class="LineNr">109 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L110" class="LineNr">110 </span> 5d/pop-to-ebp
<span id="L111" class="LineNr">111 </span> c3/return
<span id="L112" class="LineNr">112 </span>
<span id="L113" class="LineNr">113 </span><span class="subxFunction">wide-code-point?</span>: <span class="subxComment"># c: code-point -&gt; _/eax: boolean</span>
<span id="L114" class="LineNr">114 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L115" class="LineNr">115 </span> 55/push-ebp
<span id="L116" class="LineNr">116 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L117" class="LineNr">117 </span> <span class="subxComment"># eax = c</span>
<span id="L118" class="LineNr">118 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L119" class="LineNr">119 </span> <span class="subxComment"># if (c &gt;= 128) return # characters beyond ASCII currently not supported</span>
<span id="L120" class="LineNr">120 </span> 3d/compare-eax-and 0x80/imm32
<span id="L121" class="LineNr">121 </span> 0f 8d/jump-if-&gt;= $wide-code-point?:end/disp32
<span id="L122" class="LineNr">122 </span> <span class="subxComment"># var letter-bitmap/eax = font[c]</span>
<span id="L123" class="LineNr">123 </span> 69/multiply %eax 0x21/imm32/glyph-size 0/r32/eax
<span id="L124" class="LineNr">124 </span> 05/add-to-eax 0x0010000c/imm32/Font <span class="subxComment"># see boot.subx</span>
<span id="L125" class="LineNr">125 </span> <span class="subxComment"># dispatch based on letter-bitmap-&gt;size</span>
<span id="L126" class="LineNr">126 </span> 8a/byte-&gt; *eax 0/r32/AL
<span id="L127" class="LineNr">127 </span> 25/and-eax-with 0xff/imm32
<span id="L128" class="LineNr">128 </span> 3d/compare-eax-and 8/imm32
<span id="L129" class="LineNr">129 </span> 0f 95/set-if-!= %eax
<span id="L130" class="LineNr">130 </span><span class="Constant">$wide-code-point?:end</span>:
<span id="L131" class="LineNr">131 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L132" class="LineNr">132 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L133" class="LineNr">133 </span> 5d/pop-to-ebp
<span id="L134" class="LineNr">134 </span> c3/return
<span id="L135" class="LineNr">135 </span>
<span id="L136" class="LineNr">136 </span><span class="subxComment"># buffer: naked address to raw screen RAM without a length</span>
<span id="L137" class="LineNr">137 </span><span class="subxComment"># letter-bitmap: naked address to 8-pixel wide font glyph</span>
<span id="L138" class="LineNr">138 </span><span class="subxFunction">draw-narrow-code-point-on-screen-buffer</span>: <span class="subxComment"># buffer: (addr byte), letter-bitmap: (addr byte), x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int</span>
<span id="L139" class="LineNr">139 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L140" class="LineNr">140 </span> 55/push-ebp
<span id="L141" class="LineNr">141 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L142" class="LineNr">142 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L143" class="LineNr">143 </span> 52/push-edx
<span id="L144" class="LineNr">144 </span> 53/push-ebx
<span id="L145" class="LineNr">145 </span> 56/push-esi
<span id="L146" class="LineNr">146 </span> 57/push-edi
<span id="L147" class="LineNr">147 </span> <span class="subxComment"># esi = letter-bitmap</span>
<span id="L148" class="LineNr">148 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L149" class="LineNr">149 </span> <span class="subxComment"># var ycurr/edx: int = y*16</span>
<span id="L150" class="LineNr">150 </span> 8b/-&gt; *(ebp+0x14) 2/r32/edx
<span id="L151" class="LineNr">151 </span> c1 4/subop/shift-left %edx 4/imm8
<span id="L152" class="LineNr">152 </span> <span class="subxComment"># var ymax/edi: int = ycurr + 16</span>
<span id="L153" class="LineNr">153 </span> 8b/-&gt; *(ebp+0x14) 7/r32/edi
<span id="L154" class="LineNr">154 </span> c1 4/subop/shift-left %edi 4/imm8
<span id="L155" class="LineNr">155 </span> 81 0/subop/add %edi 0x10/imm32
<span id="L156" class="LineNr">156 </span> {
<span id="L157" class="LineNr">157 </span> <span class="subxComment"># if (ycurr &gt;= ymax) break</span>
<span id="L158" class="LineNr">158 </span> 39/compare %edx 7/r32/edi
<span id="L159" class="LineNr">159 </span> 0f 8d/jump-if-&gt;= <span class="Constant">break</span>/disp32
<span id="L160" class="LineNr">160 </span> <span class="subxComment"># var row-bitmap/ebx: byte = *letter-bitmap</span>
<span id="L161" class="LineNr">161 </span> bb/copy-to-ebx 0/imm32
<span id="L162" class="LineNr">162 </span> 8a/byte-&gt; *esi 3/r32/BL
<span id="L163" class="LineNr">163 </span> (<a href='103glyph.subx.html#L241'>draw-run-of-pixels-from-glyph</a> *(ebp+8) %ebx *(ebp+0x10) %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
<span id="L164" class="LineNr">164 </span> <span class="subxComment"># ++y</span>
<span id="L165" class="LineNr">165 </span> 42/increment-edx
<span id="L166" class="LineNr">166 </span> <span class="subxComment"># next bitmap row</span>
<span id="L167" class="LineNr">167 </span> 46/increment-esi
<span id="L168" class="LineNr">168 </span> <span class="subxComment">#</span>
<span id="L169" class="LineNr">169 </span> e9/jump <span class="Constant">loop</span>/disp32
<span id="L170" class="LineNr">170 </span> }
<span id="L171" class="LineNr">171 </span><span class="Constant">$draw-narrow-code-point-on-screen-buffer:end</span>:
<span id="L172" class="LineNr">172 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L173" class="LineNr">173 </span> 5f/pop-to-edi
<span id="L174" class="LineNr">174 </span> 5e/pop-to-esi
<span id="L175" class="LineNr">175 </span> 5b/pop-to-ebx
<span id="L176" class="LineNr">176 </span> 5a/pop-to-edx
<span id="L177" class="LineNr">177 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L178" class="LineNr">178 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L179" class="LineNr">179 </span> 5d/pop-to-ebp
<span id="L180" class="LineNr">180 </span> c3/return
<span id="L181" class="LineNr">181 </span>
<span id="L182" class="LineNr">182 </span><span class="subxComment"># buffer: naked address to raw screen RAM without a length</span>
<span id="L183" class="LineNr">183 </span><span class="subxComment"># letter-bitmap: naked address to 16-pixel wide font glyph</span>
<span id="L184" class="LineNr">184 </span><span class="subxFunction">draw-wide-code-point-on-screen-buffer</span>: <span class="subxComment"># buffer: (addr byte), letter-bitmap: (addr byte), x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int</span>
<span id="L185" class="LineNr">185 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L186" class="LineNr">186 </span> 55/push-ebp
<span id="L187" class="LineNr">187 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L188" class="LineNr">188 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L189" class="LineNr">189 </span> 50/push-eax
<span id="L190" class="LineNr">190 </span> 51/push-ecx
<span id="L191" class="LineNr">191 </span> 52/push-edx
<span id="L192" class="LineNr">192 </span> 53/push-ebx
<span id="L193" class="LineNr">193 </span> 56/push-esi
<span id="L194" class="LineNr">194 </span> 57/push-edi
<span id="L195" class="LineNr">195 </span> <span class="subxComment"># esi = letter-bitmap</span>
<span id="L196" class="LineNr">196 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L197" class="LineNr">197 </span> <span class="subxComment">#</span>
<span id="L198" class="LineNr">198 </span> bb/copy-to-ebx 0/imm32
<span id="L199" class="LineNr">199 </span> <span class="subxComment"># var ycurr/edx: int = y*16</span>
<span id="L200" class="LineNr">200 </span> 8b/-&gt; *(ebp+0x14) 2/r32/edx
<span id="L201" class="LineNr">201 </span> c1 4/subop/shift-left %edx 4/imm8
<span id="L202" class="LineNr">202 </span> <span class="subxComment"># var ymax/edi: int = ycurr + 16</span>
<span id="L203" class="LineNr">203 </span> 8b/-&gt; *(ebp+0x14) 7/r32/edi
<span id="L204" class="LineNr">204 </span> c1 4/subop/shift-left %edi 4/imm8
<span id="L205" class="LineNr">205 </span> 81 0/subop/add %edi 0x10/imm32
<span id="L206" class="LineNr">206 </span> {
<span id="L207" class="LineNr">207 </span> <span class="subxComment"># if (ycurr &gt;= ymax) break</span>
<span id="L208" class="LineNr">208 </span> 39/compare %edx 7/r32/edi
<span id="L209" class="LineNr">209 </span> 0f 8d/jump-if-&gt;= <span class="Constant">break</span>/disp32
<span id="L210" class="LineNr">210 </span> <span class="subxComment"># var row-bitmap/ebx: byte = *letter-bitmap</span>
<span id="L211" class="LineNr">211 </span> 8a/byte-&gt; *esi 3/r32/BL
<span id="L212" class="LineNr">212 </span> <span class="subxComment"># ecx = x</span>
<span id="L213" class="LineNr">213 </span> 8b/-&gt; *(ebp+0x10) 1/r32/ecx
<span id="L214" class="LineNr">214 </span> <span class="subxComment"># first half-row</span>
<span id="L215" class="LineNr">215 </span> (<a href='103glyph.subx.html#L241'>draw-run-of-pixels-from-glyph</a> *(ebp+8) %ebx %ecx %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
<span id="L216" class="LineNr">216 </span> <span class="subxComment"># second half-row</span>
<span id="L217" class="LineNr">217 </span> 8a/byte-&gt; *(esi+1) 3/r32/BL
<span id="L218" class="LineNr">218 </span> 41/increment-ecx
<span id="L219" class="LineNr">219 </span> (<a href='103glyph.subx.html#L241'>draw-run-of-pixels-from-glyph</a> *(ebp+8) %ebx %ecx %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
<span id="L220" class="LineNr">220 </span> <span class="subxComment"># ++y</span>
<span id="L221" class="LineNr">221 </span> 42/increment-edx
<span id="L222" class="LineNr">222 </span> <span class="subxComment"># next bitmap row</span>
<span id="L223" class="LineNr">223 </span> 81 0/subop/add %esi 2/imm32
<span id="L224" class="LineNr">224 </span> <span class="subxComment">#</span>
<span id="L225" class="LineNr">225 </span> e9/jump <span class="Constant">loop</span>/disp32
<span id="L226" class="LineNr">226 </span> }
<span id="L227" class="LineNr">227 </span><span class="Constant">$draw-wide-code-point-on-screen-buffer:end</span>:
<span id="L228" class="LineNr">228 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L229" class="LineNr">229 </span> 5f/pop-to-edi
<span id="L230" class="LineNr">230 </span> 5e/pop-to-esi
<span id="L231" class="LineNr">231 </span> 5b/pop-to-ebx
<span id="L232" class="LineNr">232 </span> 5a/pop-to-edx
<span id="L233" class="LineNr">233 </span> 59/pop-to-ecx
<span id="L234" class="LineNr">234 </span> 58/pop-to-eax
<span id="L235" class="LineNr">235 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L236" class="LineNr">236 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L237" class="LineNr">237 </span> 5d/pop-to-ebp
<span id="L238" class="LineNr">238 </span> c3/return
<span id="L239" class="LineNr">239 </span>
<span id="L240" class="LineNr">240 </span><span class="subxComment"># draw 8 pixels from a single glyph byte in a font bitmap</span>
<span id="L241" class="LineNr">241 </span><span class="subxFunction">draw-run-of-pixels-from-glyph</span>: <span class="subxComment"># buffer: (addr byte), glyph-byte: byte, x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int</span>
<span id="L242" class="LineNr">242 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L243" class="LineNr">243 </span> 55/push-ebp
<span id="L244" class="LineNr">244 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L245" class="LineNr">245 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L246" class="LineNr">246 </span> 50/push-eax
<span id="L247" class="LineNr">247 </span> 51/push-ecx
<span id="L248" class="LineNr">248 </span> 56/push-esi
<span id="L249" class="LineNr">249 </span> <span class="subxComment"># esi = glyph-byte</span>
<span id="L250" class="LineNr">250 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L251" class="LineNr">251 </span> <span class="subxComment"># var xcurr/eax: int = x*8 + 7</span>
<span id="L252" class="LineNr">252 </span> 8b/-&gt; *(ebp+0x10) 0/r32/eax
<span id="L253" class="LineNr">253 </span> c1 4/subop/shift-left %eax 3/imm8
<span id="L254" class="LineNr">254 </span> 05/add-to-eax 7/imm32
<span id="L255" class="LineNr">255 </span> <span class="subxComment"># var xmin/ecx: int = x*8</span>
<span id="L256" class="LineNr">256 </span> 8b/-&gt; *(ebp+0x10) 1/r32/ecx
<span id="L257" class="LineNr">257 </span> c1 4/subop/shift-left %ecx 3/imm8
<span id="L258" class="LineNr">258 </span> {
<span id="L259" class="LineNr">259 </span> <span class="subxComment"># if (xcurr &lt; xmin) break</span>
<span id="L260" class="LineNr">260 </span> 39/compare %eax 1/r32/ecx
<span id="L261" class="LineNr">261 </span> 7c/jump-if-&lt; <span class="Constant">break</span>/disp8
<span id="L262" class="LineNr">262 </span> <span class="subxComment"># shift LSB from row-bitmap into carry flag (CF)</span>
<span id="L263" class="LineNr">263 </span> c1 5/subop/shift-right-logical %esi 1/imm8
<span id="L264" class="LineNr">264 </span> <span class="subxComment"># if LSB, draw a pixel in the given color</span>
<span id="L265" class="LineNr">265 </span> {
<span id="L266" class="LineNr">266 </span> 73/jump-if-not-CF <span class="Constant">break</span>/disp8
<span id="L267" class="LineNr">267 </span> (<a href='101screen.subx.html#L21'>pixel-on-screen-buffer</a> *(ebp+8) %eax *(ebp+0x14) *(ebp+0x18) *(ebp+0x20) *(ebp+0x24))
<span id="L268" class="LineNr">268 </span> eb/jump $draw-code-point-on-screen-buffer:continue/disp8
<span id="L269" class="LineNr">269 </span> }
<span id="L270" class="LineNr">270 </span> <span class="subxComment"># otherwise use the background color</span>
<span id="L271" class="LineNr">271 </span> (<a href='101screen.subx.html#L21'>pixel-on-screen-buffer</a> *(ebp+8) %eax *(ebp+0x14) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
<span id="L272" class="LineNr">272 </span><span class="Constant">$draw-code-point-on-screen-buffer:continue</span>:
<span id="L273" class="LineNr">273 </span> <span class="subxComment"># --x</span>
<span id="L274" class="LineNr">274 </span> 48/decrement-eax
<span id="L275" class="LineNr">275 </span> <span class="subxComment">#</span>
<span id="L276" class="LineNr">276 </span> eb/jump <span class="Constant">loop</span>/disp8
<span id="L277" class="LineNr">277 </span> }
<span id="L278" class="LineNr">278 </span><span class="Constant">$draw-run-of-pixels-from-glyph:end</span>:
<span id="L279" class="LineNr">279 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L280" class="LineNr">280 </span> 5e/pop-to-esi
<span id="L281" class="LineNr">281 </span> 59/pop-to-ecx
<span id="L282" class="LineNr">282 </span> 58/pop-to-eax
<span id="L283" class="LineNr">283 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L284" class="LineNr">284 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L285" class="LineNr">285 </span> 5d/pop-to-ebp
<span id="L286" class="LineNr">286 </span> c3/return
<span id="L287" class="LineNr">287 </span>
<span id="L288" class="LineNr">288 </span><span class="subxFunction">cursor-position-on-real-screen</span>: <span class="subxComment"># -&gt; _/eax: int, _/ecx: int</span>
<span id="L289" class="LineNr">289 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L290" class="LineNr">290 </span> 55/push-ebp
<span id="L291" class="LineNr">291 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L292" class="LineNr">292 </span> <span class="subxComment"># TODO: support fake screen; we currently assume 'screen' is always 0 (real)</span>
<span id="L293" class="LineNr">293 </span> 8b/-&gt; *<span class="SpecialChar"><a href='103glyph.subx.html#L362'>Real-screen-cursor-x</a></span> 0/r32/eax
<span id="L294" class="LineNr">294 </span> 8b/-&gt; *<span class="SpecialChar"><a href='103glyph.subx.html#L364'>Real-screen-cursor-y</a></span> 1/r32/ecx
<span id="L295" class="LineNr">295 </span><span class="Constant">$cursor-position-on-real-screen:end</span>:
<span id="L296" class="LineNr">296 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L297" class="LineNr">297 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L298" class="LineNr">298 </span> 5d/pop-to-ebp
<span id="L299" class="LineNr">299 </span> c3/return
<span id="L300" class="LineNr">300 </span>
<span id="L301" class="LineNr">301 </span><span class="subxFunction">set-cursor-position-on-real-screen</span>: <span class="subxComment"># x: int, y: int</span>
<span id="L302" class="LineNr">302 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L303" class="LineNr">303 </span> 55/push-ebp
<span id="L304" class="LineNr">304 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L305" class="LineNr">305 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L306" class="LineNr">306 </span> 50/push-eax
<span id="L307" class="LineNr">307 </span> <span class="subxComment">#</span>
<span id="L308" class="LineNr">308 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L309" class="LineNr">309 </span> 89/&lt;- *<span class="SpecialChar"><a href='103glyph.subx.html#L362'>Real-screen-cursor-x</a></span> 0/r32/eax
<span id="L310" class="LineNr">310 </span> 8b/-&gt; *(ebp+0xc) 0/r32/eax
<span id="L311" class="LineNr">311 </span> 89/&lt;- *<span class="SpecialChar"><a href='103glyph.subx.html#L364'>Real-screen-cursor-y</a></span> 0/r32/eax
<span id="L312" class="LineNr">312 </span><span class="Constant">$set-cursor-position-on-real-screen:end</span>:
<span id="L313" class="LineNr">313 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L314" class="LineNr">314 </span> 58/pop-to-eax
<span id="L315" class="LineNr">315 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L316" class="LineNr">316 </span> 89/&lt;- %esp 5/r32/ebp
<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="subxComment"># Not a real `show-cursor` primitive:</span>
<span id="L321" class="LineNr">321 </span><span class="subxComment"># - does not clear previous location cursor was shown at.</span>
<span id="L322" class="LineNr">322 </span><span class="subxComment"># - does not preserve what was at the cursor. Caller is responsible for</span>
<span id="L323" class="LineNr">323 </span><span class="subxComment"># tracking what was on the screen at this position before and passing it</span>
<span id="L324" class="LineNr">324 </span><span class="subxComment"># in again.</span>
<span id="L325" class="LineNr">325 </span><span class="subxComment"># - does not stop showing the cursor at this location when the cursor moves</span>
<span id="L326" class="LineNr">326 </span><span class="subxFunction">draw-cursor-on-real-screen</span>: <span class="subxComment"># c: code-point</span>
<span id="L327" class="LineNr">327 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L328" class="LineNr">328 </span> 55/push-ebp
<span id="L329" class="LineNr">329 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L330" class="LineNr">330 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L331" class="LineNr">331 </span> 50/push-eax
<span id="L332" class="LineNr">332 </span> 51/push-ecx
<span id="L333" class="LineNr">333 </span> <span class="subxComment">#</span>
<span id="L334" class="LineNr">334 </span> (<a href='103glyph.subx.html#L288'>cursor-position-on-real-screen</a>) <span class="subxComment"># =&gt; eax, ecx</span>
<span id="L335" class="LineNr">335 </span> (<a href='103glyph.subx.html#L18'>draw-code-point-on-real-screen</a> *(ebp+8) %eax %ecx 0 7) <span class="subxComment"># =&gt; eax</span>
<span id="L336" class="LineNr">336 </span><span class="Constant">$draw-cursor-on-real-screen:end</span>:
<span id="L337" class="LineNr">337 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L338" class="LineNr">338 </span> 59/pop-to-ecx
<span id="L339" class="LineNr">339 </span> 58/pop-to-eax
<span id="L340" class="LineNr">340 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L341" class="LineNr">341 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L342" class="LineNr">342 </span> 5d/pop-to-ebp
<span id="L343" class="LineNr">343 </span> c3/return
<span id="L344" class="LineNr">344 </span>
<span id="L345" class="LineNr">345 </span>== data
<span id="L346" class="LineNr">346 </span>
<span id="L347" class="LineNr">347 </span><span class="subxComment"># The cursor is where certain Mu functions (usually of the form</span>
<span id="L348" class="LineNr">348 </span><span class="subxComment"># 'draw*cursor*') print to by default.</span>
<span id="L349" class="LineNr">349 </span><span class="subxComment">#</span>
<span id="L350" class="LineNr">350 </span><span class="subxComment"># We don't bother displaying the cursor when drawing. It only becomes visible</span>
<span id="L351" class="LineNr">351 </span><span class="subxComment"># on draw-cursor, which is quite rickety (see above)</span>
<span id="L352" class="LineNr">352 </span><span class="subxComment">#</span>
<span id="L353" class="LineNr">353 </span><span class="subxComment"># It's up to applications to manage cursor display:</span>
<span id="L354" class="LineNr">354 </span><span class="subxComment"># - clean up where it used to be</span>
<span id="L355" class="LineNr">355 </span><span class="subxComment"># - display the cursor before waiting for a key</span>
<span id="L356" class="LineNr">356 </span><span class="subxComment"># - ensure its location appropriately suggests the effect keystrokes will have</span>
<span id="L357" class="LineNr">357 </span><span class="subxComment"># - ensure its contents (and colors) appropriately reflect the state of the</span>
<span id="L358" class="LineNr">358 </span><span class="subxComment"># screen</span>
<span id="L359" class="LineNr">359 </span><span class="subxComment">#</span>
<span id="L360" class="LineNr">360 </span><span class="subxComment"># There's no blinking, etc. We aren't using any hardware-supported text mode</span>
<span id="L361" class="LineNr">361 </span><span class="subxComment"># here.</span>
<span id="L362" class="LineNr">362 </span><span class="SpecialChar">Real-screen-cursor-x</span>:
<span id="L363" class="LineNr">363 </span> 0/imm32
<span id="L364" class="LineNr">364 </span><span class="SpecialChar">Real-screen-cursor-y</span>:
<span id="L365" class="LineNr">365 </span> 0/imm32
<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># Extremely hacky support for combining characters.</span>
<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># <a href="https://en.wikipedia.org/wiki/Code_point">https://en.wikipedia.org/wiki/Code_point</a></span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># <a href="https://en.wikipedia.org/wiki/Combining_character">https://en.wikipedia.org/wiki/Combining_character</a></span>
<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># All we support is drawing combining characters atop the same screen cell as</span>
<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># a single base code point. See the overlay? arguments below.</span>
<span id="L8" class="LineNr"> 8 </span><span class="subxComment">#</span>
<span id="L9" class="LineNr"> 9 </span><span class="subxComment"># We need to do this in machine code because Mu doesn't have global variables</span>
<span id="L10" class="LineNr"> 10 </span><span class="subxComment"># yet (for the start of the font).</span>
<span id="L11" class="LineNr"> 11 </span>
<span id="L12" class="LineNr"> 12 </span>== code
<span id="L13" class="LineNr"> 13 </span>
<span id="L14" class="LineNr"> 14 </span><span class="subxComment"># The Mu computer's screen is 1024px wide and 768px tall.</span>
<span id="L15" class="LineNr"> 15 </span><span class="subxComment"># The Mu computer's font is 8px wide and 16px tall.</span>
<span id="L16" class="LineNr"> 16 </span><span class="subxComment"># Therefore 'x' here is in [0, 128), and 'y' is in [0, 48)</span>
<span id="L17" class="LineNr"> 17 </span><span class="subxComment"># Doesn't update the cursor; where the cursor should go after printing the</span>
<span id="L18" class="LineNr"> 18 </span><span class="subxComment"># current code-point is a higher-level concern.</span>
<span id="L19" class="LineNr"> 19 </span><span class="subxFunction">draw-code-point-on-real-screen</span>: <span class="subxComment"># c: code-point, x: int, y: int, color: int, background-color: int -&gt; _/eax</span>
<span id="L20" class="LineNr"> 20 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L21" class="LineNr"> 21 </span> 55/push-ebp
<span id="L22" class="LineNr"> 22 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L23" class="LineNr"> 23 </span> <span class="subxComment">#</span>
<span id="L24" class="LineNr"> 24 </span> (<a href='103glyph.subx.html#L87'>draw-code-point-on-screen-buffer</a> *<span class="SpecialChar"><a href='boot.subx.html#L675'>Video-memory-addr</a></span> *(ebp+8) *(ebp+0xc) *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) 0 0x80 0x30) <span class="subxComment"># 0/no-overlay =&gt; eax</span>
<span id="L25" class="LineNr"> 25 </span><span class="Constant">$draw-code-point-on-real-screen:end</span>:
<span id="L26" class="LineNr"> 26 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L27" class="LineNr"> 27 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L28" class="LineNr"> 28 </span> 5d/pop-to-ebp
<span id="L29" class="LineNr"> 29 </span> c3/return
<span id="L30" class="LineNr"> 30 </span>
<span id="L31" class="LineNr"> 31 </span><span class="subxFunction">overlay-code-point-on-real-screen</span>: <span class="subxComment"># c: code-point, x: int, y: int, color: int, background-color: int -&gt; _/eax</span>
<span id="L32" class="LineNr"> 32 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L33" class="LineNr"> 33 </span> 55/push-ebp
<span id="L34" class="LineNr"> 34 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L35" class="LineNr"> 35 </span> <span class="subxComment">#</span>
<span id="L36" class="LineNr"> 36 </span> (<a href='103glyph.subx.html#L87'>draw-code-point-on-screen-buffer</a> *<span class="SpecialChar"><a href='boot.subx.html#L675'>Video-memory-addr</a></span> *(ebp+8) *(ebp+0xc) *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) 1 0x80 0x30) <span class="subxComment"># 1/overlay =&gt; eax</span>
<span id="L37" class="LineNr"> 37 </span><span class="Constant">$overlay-code-point-on-real-screen:end</span>:
<span id="L38" class="LineNr"> 38 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L39" class="LineNr"> 39 </span> 89/&lt;- %esp 5/r32/ebp
<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="subxFunction">draw-code-point-on-screen-array</span>: <span class="subxComment"># screen-data: (addr array byte), c: code-point, x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int -&gt; _/eax: int</span>
<span id="L44" class="LineNr"> 44 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L45" class="LineNr"> 45 </span> 55/push-ebp
<span id="L46" class="LineNr"> 46 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L47" class="LineNr"> 47 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L48" class="LineNr"> 48 </span> 51/push-ecx
<span id="L49" class="LineNr"> 49 </span> 52/push-edx
<span id="L50" class="LineNr"> 50 </span> <span class="subxComment"># if screen-width*screen-height &gt; len(screen-data) abort</span>
<span id="L51" class="LineNr"> 51 </span> {
<span id="L52" class="LineNr"> 52 </span> <span class="subxComment"># ecx = len(screen-data)</span>
<span id="L53" class="LineNr"> 53 </span> 8b/-&gt; *(ebp+8) 1/r32/ecx
<span id="L54" class="LineNr"> 54 </span> 8b/-&gt; *ecx 1/r32/ecx
<span id="L55" class="LineNr"> 55 </span> <span class="subxComment"># eax = screen-width*screen-height</span>
<span id="L56" class="LineNr"> 56 </span> ba/copy-to-edx 0/imm32
<span id="L57" class="LineNr"> 57 </span> 8b/-&gt; *(ebp+0x20) 0/r32/eax
<span id="L58" class="LineNr"> 58 </span> f7 4/subop/multiply-into-eax *(ebp+0x24)
<span id="L59" class="LineNr"> 59 </span> 81 7/subop/compare %edx 0/imm32
<span id="L60" class="LineNr"> 60 </span> 0f 85/jump-if-!= $draw-code-point-on-screen-array:overflow/disp32
<span id="L61" class="LineNr"> 61 </span> <span class="subxComment"># if (eax &gt; ecx) abort</span>
<span id="L62" class="LineNr"> 62 </span> 39/compare %eax 1/r32/ecx
<span id="L63" class="LineNr"> 63 </span> 0f 8f/jump-if-&gt; $draw-code-point-on-screen-array:<a href='317abort.subx.html#L5'>abort</a>/disp32
<span id="L64" class="LineNr"> 64 </span> }
<span id="L65" class="LineNr"> 65 </span> <span class="subxComment"># eax = screen-data+4 (skip length)</span>
<span id="L66" class="LineNr"> 66 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L67" class="LineNr"> 67 </span> 05/add-to-eax 4/imm32
<span id="L68" class="LineNr"> 68 </span> <span class="subxComment">#</span>
<span id="L69" class="LineNr"> 69 </span> (<a href='103glyph.subx.html#L87'>draw-code-point-on-screen-buffer</a> %eax *(ebp+0xc) *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24)) <span class="subxComment"># =&gt; eax</span>
<span id="L70" class="LineNr"> 70 </span><span class="Constant">$draw-code-point-on-screen-array:end</span>:
<span id="L71" class="LineNr"> 71 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L72" class="LineNr"> 72 </span> 5a/pop-to-edx
<span id="L73" class="LineNr"> 73 </span> 59/pop-to-ecx
<span id="L74" class="LineNr"> 74 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L75" class="LineNr"> 75 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L76" class="LineNr"> 76 </span> 5d/pop-to-ebp
<span id="L77" class="LineNr"> 77 </span> c3/return
<span id="L78" class="LineNr"> 78 </span>
<span id="L79" class="LineNr"> 79 </span><span class="Constant">$draw-code-point-on-screen-array:overflow</span>:
<span id="L80" class="LineNr"> 80 </span> (<a href='317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;draw-code-point-on-screen-array: <a href='500fake-screen.mu.html#L14'>screen</a> dimensions too large&quot;</span>)
<span id="L81" class="LineNr"> 81 </span>
<span id="L82" class="LineNr"> 82 </span><span class="Constant">$draw-code-point-on-screen-array:<a href='317abort.subx.html#L5'>abort</a></span>:
<span id="L83" class="LineNr"> 83 </span> (<a href='317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;draw-code-point-on-screen-array: coordinates are off the screen. Are the <a href='500fake-screen.mu.html#L14'>screen</a> dimensions correct?&quot;</span>)
<span id="L84" class="LineNr"> 84 </span>
<span id="L85" class="LineNr"> 85 </span><span class="subxComment"># 'buffer' here is not a valid Mu type: a naked address without a length.</span>
<span id="L86" class="LineNr"> 86 </span><span class="subxComment"># returns number of 8x16 units printed to screen (1 or 2).</span>
<span id="L87" class="LineNr"> 87 </span><span class="subxFunction">draw-code-point-on-screen-buffer</span>: <span class="subxComment"># buffer: (addr byte), c: code-point, x: int, y: int, color: int, background-color: int, overlay?: boolean, screen-width: int, screen-height: int -&gt; _/eax: 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/&lt;- %ebp 4/r32/esp
<span id="L91" class="LineNr"> 91 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L92" class="LineNr"> 92 </span> 56/push-esi
<span id="L93" class="LineNr"> 93 </span> <span class="subxComment"># switch screen-width and screen-height from code-point to pixel units</span>
<span id="L94" class="LineNr"> 94 </span> c1 4/subop/shift-left *(ebp+24) 3/imm8/log2-font-width
<span id="L95" class="LineNr"> 95 </span> c1 4/subop/shift-left *(ebp+28) 4/imm8/log2-font-height
<span id="L96" class="LineNr"> 96 </span> <span class="subxComment"># esi = c</span>
<span id="L97" class="LineNr"> 97 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L98" class="LineNr"> 98 </span> <span class="subxComment"># if (c &gt;= 4352) return # unicode planes supported: latin, greek, cyrillic, armenian, hebrew, arabic, syriac, thaana, n'ko, indian (iscii), sinhala, thai, lao, tibetan, myanmar, georgian</span>
<span id="L99" class="LineNr"> 99 </span> <span class="subxComment"># next few to support: CJK, ethiopic, cherokee, ...</span>
<span id="L100" class="LineNr">100 </span> 81 7/subop/compare %esi 0x1100/imm32/4352
<span id="L101" class="LineNr">101 </span> 0f 8d/jump-if-&gt;= $draw-code-point-on-screen-buffer:end/disp32
<span id="L102" class="LineNr">102 </span> <span class="subxComment"># var letter-bitmap/esi = font[c]</span>
<span id="L103" class="LineNr">103 </span> 69/multiply %esi 0x22/imm32/glyph-size 6/r32/esi
<span id="L104" class="LineNr">104 </span> 81 0/subop/add %esi 0x0010000c/imm32/Font <span class="subxComment"># see boot.subx</span>
<span id="L105" class="LineNr">105 </span> <span class="subxComment"># dispatch based on letter-bitmap-&gt;size</span>
<span id="L106" class="LineNr">106 </span> b8/copy-to-eax 0/imm32
<span id="L107" class="LineNr">107 </span> 8a/byte-&gt; *esi 0/r32/AL
<span id="L108" class="LineNr">108 </span> 46/increment-esi <span class="subxComment"># skip size</span>
<span id="L109" class="LineNr">109 </span> 46/increment-esi <span class="subxComment"># skip size</span>
<span id="L110" class="LineNr">110 </span> 3d/compare-eax-and 8/imm32
<span id="L111" class="LineNr">111 </span> {
<span id="L112" class="LineNr">112 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8
<span id="L113" class="LineNr">113 </span> (<a href='103glyph.subx.html#L173'>draw-narrow-code-point-on-screen-buffer</a> *(ebp+8) %esi *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24) *(ebp+0x28))
<span id="L114" class="LineNr">114 </span> b8/copy-to-eax 1/imm32
<span id="L115" class="LineNr">115 </span> eb/jump $draw-code-point-on-screen-buffer:end/disp8
<span id="L116" class="LineNr">116 </span> }
<span id="L117" class="LineNr">117 </span> (<a href='103glyph.subx.html#L219'>draw-wide-code-point-on-screen-buffer</a> *(ebp+8) %esi *(ebp+0x10) *(ebp+0x14) *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24) *(ebp+0x28))
<span id="L118" class="LineNr">118 </span> b8/copy-to-eax 2/imm32
<span id="L119" class="LineNr">119 </span><span class="Constant">$draw-code-point-on-screen-buffer:end</span>:
<span id="L120" class="LineNr">120 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L121" class="LineNr">121 </span> 5e/pop-to-esi
<span id="L122" class="LineNr">122 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L123" class="LineNr">123 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L124" class="LineNr">124 </span> 5d/pop-to-ebp
<span id="L125" class="LineNr">125 </span> c3/return
<span id="L126" class="LineNr">126 </span>
<span id="L127" class="LineNr">127 </span><span class="subxFunction">wide-code-point?</span>: <span class="subxComment"># c: code-point -&gt; _/eax: boolean</span>
<span id="L128" class="LineNr">128 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L129" class="LineNr">129 </span> 55/push-ebp
<span id="L130" class="LineNr">130 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L131" class="LineNr">131 </span> <span class="subxComment"># eax = c</span>
<span id="L132" class="LineNr">132 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L133" class="LineNr">133 </span> <span class="subxComment"># if (c &gt;= 128) return # characters beyond ASCII currently not supported</span>
<span id="L134" class="LineNr">134 </span> 3d/compare-eax-and 0x80/imm32
<span id="L135" class="LineNr">135 </span> 0f 8d/jump-if-&gt;= $wide-code-point?:end/disp32
<span id="L136" class="LineNr">136 </span> <span class="subxComment"># var letter-bitmap/eax = font[c]</span>
<span id="L137" class="LineNr">137 </span> 69/multiply %eax 0x22/imm32/glyph-size 0/r32/eax
<span id="L138" class="LineNr">138 </span> 05/add-to-eax 0x0010000c/imm32/Font <span class="subxComment"># see boot.subx</span>
<span id="L139" class="LineNr">139 </span> <span class="subxComment"># dispatch based on letter-bitmap-&gt;size</span>
<span id="L140" class="LineNr">140 </span> 8a/byte-&gt; *eax 0/r32/AL
<span id="L141" class="LineNr">141 </span> 25/and-eax-with 0xff/imm32
<span id="L142" class="LineNr">142 </span> 3d/compare-eax-and 8/imm32
<span id="L143" class="LineNr">143 </span> 0f 95/set-if-!= %eax
<span id="L144" class="LineNr">144 </span><span class="Constant">$wide-code-point?:end</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="subxFunction">combining-code-point?</span>: <span class="subxComment"># c: code-point -&gt; _/eax: boolean</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"># eax = c</span>
<span id="L155" class="LineNr">155 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L156" class="LineNr">156 </span> <span class="subxComment"># if (c &gt;= 128) return # characters beyond ASCII currently not supported</span>
<span id="L157" class="LineNr">157 </span> 3d/compare-eax-and 0x80/imm32
<span id="L158" class="LineNr">158 </span> 0f 8d/jump-if-&gt;= $combining-code-point?:end/disp32
<span id="L159" class="LineNr">159 </span> <span class="subxComment"># var letter-bitmap/eax = font[c]</span>
<span id="L160" class="LineNr">160 </span> 69/multiply %eax 0x22/imm32/glyph-size 0/r32/eax
<span id="L161" class="LineNr">161 </span> 05/add-to-eax 0x0010000c/imm32/Font <span class="subxComment"># see boot.subx</span>
<span id="L162" class="LineNr">162 </span> <span class="subxComment"># dispatch based on letter-bitmap-&gt;is-combine?</span>
<span id="L163" class="LineNr">163 </span> 8a/byte-&gt; *(eax+1) 0/r32/AL
<span id="L164" class="LineNr">164 </span> 25/and-eax-with 0xff/imm32
<span id="L165" class="LineNr">165 </span><span class="Constant">$combining-code-point?:end</span>:
<span id="L166" class="LineNr">166 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L167" class="LineNr">167 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L168" class="LineNr">168 </span> 5d/pop-to-ebp
<span id="L169" class="LineNr">169 </span> c3/return
<span id="L170" class="LineNr">170 </span>
<span id="L171" class="LineNr">171 </span><span class="subxComment"># buffer: naked address to raw screen RAM without a length</span>
<span id="L172" class="LineNr">172 </span><span class="subxComment"># letter-bitmap: naked address to 8-pixel wide font glyph</span>
<span id="L173" class="LineNr">173 </span><span class="subxFunction">draw-narrow-code-point-on-screen-buffer</span>: <span class="subxComment"># buffer: (addr byte), letter-bitmap: (addr byte), x: int, y: int, color: int, background-color: int, overlay?: boolean, screen-width: int, screen-height: int</span>
<span id="L174" class="LineNr">174 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L175" class="LineNr">175 </span> 55/push-ebp
<span id="L176" class="LineNr">176 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L177" class="LineNr">177 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L178" class="LineNr">178 </span> 52/push-edx
<span id="L179" class="LineNr">179 </span> 53/push-ebx
<span id="L180" class="LineNr">180 </span> 56/push-esi
<span id="L181" class="LineNr">181 </span> 57/push-edi
<span id="L182" class="LineNr">182 </span> <span class="subxComment"># esi = letter-bitmap</span>
<span id="L183" class="LineNr">183 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L184" class="LineNr">184 </span> <span class="subxComment"># var ycurr/edx: int = y*16</span>
<span id="L185" class="LineNr">185 </span> 8b/-&gt; *(ebp+0x14) 2/r32/edx
<span id="L186" class="LineNr">186 </span> c1 4/subop/shift-left %edx 4/imm8
<span id="L187" class="LineNr">187 </span> <span class="subxComment"># var ymax/edi: int = ycurr + 16</span>
<span id="L188" class="LineNr">188 </span> 8b/-&gt; *(ebp+0x14) 7/r32/edi
<span id="L189" class="LineNr">189 </span> c1 4/subop/shift-left %edi 4/imm8
<span id="L190" class="LineNr">190 </span> 81 0/subop/add %edi 0x10/imm32
<span id="L191" class="LineNr">191 </span> {
<span id="L192" class="LineNr">192 </span> <span class="subxComment"># if (ycurr &gt;= ymax) break</span>
<span id="L193" class="LineNr">193 </span> 39/compare %edx 7/r32/edi
<span id="L194" class="LineNr">194 </span> 0f 8d/jump-if-&gt;= <span class="Constant">break</span>/disp32
<span id="L195" class="LineNr">195 </span> <span class="subxComment"># var row-bitmap/ebx: byte = *letter-bitmap</span>
<span id="L196" class="LineNr">196 </span> bb/copy-to-ebx 0/imm32
<span id="L197" class="LineNr">197 </span> 8a/byte-&gt; *esi 3/r32/BL
<span id="L198" class="LineNr">198 </span> (<a href='103glyph.subx.html#L276'>draw-run-of-pixels-from-glyph</a> *(ebp+8) %ebx *(ebp+0x10) %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24) *(ebp+0x28))
<span id="L199" class="LineNr">199 </span> <span class="subxComment"># ++y</span>
<span id="L200" class="LineNr">200 </span> 42/increment-edx
<span id="L201" class="LineNr">201 </span> <span class="subxComment"># next bitmap row</span>
<span id="L202" class="LineNr">202 </span> 46/increment-esi
<span id="L203" class="LineNr">203 </span> <span class="subxComment">#</span>
<span id="L204" class="LineNr">204 </span> e9/jump <span class="Constant">loop</span>/disp32
<span id="L205" class="LineNr">205 </span> }
<span id="L206" class="LineNr">206 </span><span class="Constant">$draw-narrow-code-point-on-screen-buffer:end</span>:
<span id="L207" class="LineNr">207 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L208" class="LineNr">208 </span> 5f/pop-to-edi
<span id="L209" class="LineNr">209 </span> 5e/pop-to-esi
<span id="L210" class="LineNr">210 </span> 5b/pop-to-ebx
<span id="L211" class="LineNr">211 </span> 5a/pop-to-edx
<span id="L212" class="LineNr">212 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L213" class="LineNr">213 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L214" class="LineNr">214 </span> 5d/pop-to-ebp
<span id="L215" class="LineNr">215 </span> c3/return
<span id="L216" class="LineNr">216 </span>
<span id="L217" class="LineNr">217 </span><span class="subxComment"># buffer: naked address to raw screen RAM without a length</span>
<span id="L218" class="LineNr">218 </span><span class="subxComment"># letter-bitmap: naked address to 16-pixel wide font glyph</span>
<span id="L219" class="LineNr">219 </span><span class="subxFunction">draw-wide-code-point-on-screen-buffer</span>: <span class="subxComment"># buffer: (addr byte), letter-bitmap: (addr byte), x: int, y: int, color: int, background-color: int, overlay?: boolean, screen-width: int, screen-height: int</span>
<span id="L220" class="LineNr">220 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L221" class="LineNr">221 </span> 55/push-ebp
<span id="L222" class="LineNr">222 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L223" class="LineNr">223 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L224" class="LineNr">224 </span> 50/push-eax
<span id="L225" class="LineNr">225 </span> 51/push-ecx
<span id="L226" class="LineNr">226 </span> 52/push-edx
<span id="L227" class="LineNr">227 </span> 53/push-ebx
<span id="L228" class="LineNr">228 </span> 56/push-esi
<span id="L229" class="LineNr">229 </span> 57/push-edi
<span id="L230" class="LineNr">230 </span> <span class="subxComment"># esi = letter-bitmap</span>
<span id="L231" class="LineNr">231 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L232" class="LineNr">232 </span> <span class="subxComment">#</span>
<span id="L233" class="LineNr">233 </span> bb/copy-to-ebx 0/imm32
<span id="L234" class="LineNr">234 </span> <span class="subxComment"># var ycurr/edx: int = y*16</span>
<span id="L235" class="LineNr">235 </span> 8b/-&gt; *(ebp+0x14) 2/r32/edx
<span id="L236" class="LineNr">236 </span> c1 4/subop/shift-left %edx 4/imm8
<span id="L237" class="LineNr">237 </span> <span class="subxComment"># var ymax/edi: int = ycurr + 16</span>
<span id="L238" class="LineNr">238 </span> 8b/-&gt; *(ebp+0x14) 7/r32/edi
<span id="L239" class="LineNr">239 </span> c1 4/subop/shift-left %edi 4/imm8
<span id="L240" class="LineNr">240 </span> 81 0/subop/add %edi 0x10/imm32
<span id="L241" class="LineNr">241 </span> {
<span id="L242" class="LineNr">242 </span> <span class="subxComment"># if (ycurr &gt;= ymax) break</span>
<span id="L243" class="LineNr">243 </span> 39/compare %edx 7/r32/edi
<span id="L244" class="LineNr">244 </span> 0f 8d/jump-if-&gt;= <span class="Constant">break</span>/disp32
<span id="L245" class="LineNr">245 </span> <span class="subxComment"># var row-bitmap/ebx: byte = *letter-bitmap</span>
<span id="L246" class="LineNr">246 </span> 8a/byte-&gt; *esi 3/r32/BL
<span id="L247" class="LineNr">247 </span> <span class="subxComment"># ecx = x</span>
<span id="L248" class="LineNr">248 </span> 8b/-&gt; *(ebp+0x10) 1/r32/ecx
<span id="L249" class="LineNr">249 </span> <span class="subxComment"># first half-row</span>
<span id="L250" class="LineNr">250 </span> (<a href='103glyph.subx.html#L276'>draw-run-of-pixels-from-glyph</a> *(ebp+8) %ebx %ecx %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24) *(ebp+0x28))
<span id="L251" class="LineNr">251 </span> <span class="subxComment"># second half-row</span>
<span id="L252" class="LineNr">252 </span> 8a/byte-&gt; *(esi+1) 3/r32/BL
<span id="L253" class="LineNr">253 </span> 41/increment-ecx
<span id="L254" class="LineNr">254 </span> (<a href='103glyph.subx.html#L276'>draw-run-of-pixels-from-glyph</a> *(ebp+8) %ebx %ecx %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24) *(ebp+0x28))
<span id="L255" class="LineNr">255 </span> <span class="subxComment"># ++y</span>
<span id="L256" class="LineNr">256 </span> 42/increment-edx
<span id="L257" class="LineNr">257 </span> <span class="subxComment"># next bitmap row</span>
<span id="L258" class="LineNr">258 </span> 81 0/subop/add %esi 2/imm32
<span id="L259" class="LineNr">259 </span> <span class="subxComment">#</span>
<span id="L260" class="LineNr">260 </span> e9/jump <span class="Constant">loop</span>/disp32
<span id="L261" class="LineNr">261 </span> }
<span id="L262" class="LineNr">262 </span><span class="Constant">$draw-wide-code-point-on-screen-buffer:end</span>:
<span id="L263" class="LineNr">263 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L264" class="LineNr">264 </span> 5f/pop-to-edi
<span id="L265" class="LineNr">265 </span> 5e/pop-to-esi
<span id="L266" class="LineNr">266 </span> 5b/pop-to-ebx
<span id="L267" class="LineNr">267 </span> 5a/pop-to-edx
<span id="L268" class="LineNr">268 </span> 59/pop-to-ecx
<span id="L269" class="LineNr">269 </span> 58/pop-to-eax
<span id="L270" class="LineNr">270 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L271" class="LineNr">271 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L272" class="LineNr">272 </span> 5d/pop-to-ebp
<span id="L273" class="LineNr">273 </span> c3/return
<span id="L274" class="LineNr">274 </span>
<span id="L275" class="LineNr">275 </span><span class="subxComment"># draw 8 pixels from a single glyph byte in a font bitmap</span>
<span id="L276" class="LineNr">276 </span><span class="subxFunction">draw-run-of-pixels-from-glyph</span>: <span class="subxComment"># buffer: (addr byte), glyph-byte: byte, x: int, y: int, color: int, background-color: int, overlay?: boolean, screen-width: int, screen-height: int</span>
<span id="L277" class="LineNr">277 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L278" class="LineNr">278 </span> 55/push-ebp
<span id="L279" class="LineNr">279 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L280" class="LineNr">280 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L281" class="LineNr">281 </span> 50/push-eax
<span id="L282" class="LineNr">282 </span> 51/push-ecx
<span id="L283" class="LineNr">283 </span> 56/push-esi
<span id="L284" class="LineNr">284 </span> <span class="subxComment"># esi = glyph-byte</span>
<span id="L285" class="LineNr">285 </span> 8b/-&gt; *(ebp+0xc) 6/r32/esi
<span id="L286" class="LineNr">286 </span> <span class="subxComment"># var xcurr/eax: int = x*8 + 7</span>
<span id="L287" class="LineNr">287 </span> 8b/-&gt; *(ebp+0x10) 0/r32/eax
<span id="L288" class="LineNr">288 </span> c1 4/subop/shift-left %eax 3/imm8
<span id="L289" class="LineNr">289 </span> 05/add-to-eax 7/imm32
<span id="L290" class="LineNr">290 </span> <span class="subxComment"># var xmin/ecx: int = x*8</span>
<span id="L291" class="LineNr">291 </span> 8b/-&gt; *(ebp+0x10) 1/r32/ecx
<span id="L292" class="LineNr">292 </span> c1 4/subop/shift-left %ecx 3/imm8
<span id="L293" class="LineNr">293 </span> {
<span id="L294" class="LineNr">294 </span> <span class="subxComment"># if (xcurr &lt; xmin) break</span>
<span id="L295" class="LineNr">295 </span> 39/compare %eax 1/r32/ecx
<span id="L296" class="LineNr">296 </span> 7c/jump-if-&lt; <span class="Constant">break</span>/disp8
<span id="L297" class="LineNr">297 </span> <span class="subxComment"># shift LSB from row-bitmap into carry flag (CF)</span>
<span id="L298" class="LineNr">298 </span> c1 5/subop/shift-right-logical %esi 1/imm8
<span id="L299" class="LineNr">299 </span> <span class="subxComment"># if LSB, draw a pixel in the given color</span>
<span id="L300" class="LineNr">300 </span> {
<span id="L301" class="LineNr">301 </span> 73/jump-if-not-CF <span class="Constant">break</span>/disp8
<span id="L302" class="LineNr">302 </span> (<a href='101screen.subx.html#L21'>pixel-on-screen-buffer</a> *(ebp+8) %eax *(ebp+0x14) *(ebp+0x18) *(ebp+0x24) *(ebp+0x28))
<span id="L303" class="LineNr">303 </span> eb/jump $draw-code-point-on-screen-buffer:continue/disp8
<span id="L304" class="LineNr">304 </span> }
<span id="L305" class="LineNr">305 </span> <span class="subxComment"># otherwise use the background color (except when overlay?)</span>
<span id="L306" class="LineNr">306 </span> {
<span id="L307" class="LineNr">307 </span> 81 7/subop/compare *(ebp+0x20) 0/imm32/false
<span id="L308" class="LineNr">308 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8
<span id="L309" class="LineNr">309 </span> (<a href='101screen.subx.html#L21'>pixel-on-screen-buffer</a> *(ebp+8) %eax *(ebp+0x14) *(ebp+0x1c) *(ebp+0x24) *(ebp+0x28))
<span id="L310" class="LineNr">310 </span> }
<span id="L311" class="LineNr">311 </span><span class="Constant">$draw-code-point-on-screen-buffer:continue</span>:
<span id="L312" class="LineNr">312 </span> <span class="subxComment"># --x</span>
<span id="L313" class="LineNr">313 </span> 48/decrement-eax
<span id="L314" class="LineNr">314 </span> <span class="subxComment">#</span>
<span id="L315" class="LineNr">315 </span> eb/jump <span class="Constant">loop</span>/disp8
<span id="L316" class="LineNr">316 </span> }
<span id="L317" class="LineNr">317 </span><span class="Constant">$draw-run-of-pixels-from-glyph:end</span>:
<span id="L318" class="LineNr">318 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L319" class="LineNr">319 </span> 5e/pop-to-esi
<span id="L320" class="LineNr">320 </span> 59/pop-to-ecx
<span id="L321" class="LineNr">321 </span> 58/pop-to-eax
<span id="L322" class="LineNr">322 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L323" class="LineNr">323 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L324" class="LineNr">324 </span> 5d/pop-to-ebp
<span id="L325" class="LineNr">325 </span> c3/return
<span id="L326" class="LineNr">326 </span>
<span id="L327" class="LineNr">327 </span><span class="subxFunction">cursor-position-on-real-screen</span>: <span class="subxComment"># -&gt; _/eax: int, _/ecx: int</span>
<span id="L328" class="LineNr">328 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L329" class="LineNr">329 </span> 55/push-ebp
<span id="L330" class="LineNr">330 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L331" class="LineNr">331 </span> <span class="subxComment"># TODO: support fake screen; we currently assume 'screen' is always 0 (real)</span>
<span id="L332" class="LineNr">332 </span> 8b/-&gt; *<span class="SpecialChar"><a href='103glyph.subx.html#L401'>Real-screen-cursor-x</a></span> 0/r32/eax
<span id="L333" class="LineNr">333 </span> 8b/-&gt; *<span class="SpecialChar"><a href='103glyph.subx.html#L403'>Real-screen-cursor-y</a></span> 1/r32/ecx
<span id="L334" class="LineNr">334 </span><span class="Constant">$cursor-position-on-real-screen:end</span>:
<span id="L335" class="LineNr">335 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L336" class="LineNr">336 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L337" class="LineNr">337 </span> 5d/pop-to-ebp
<span id="L338" class="LineNr">338 </span> c3/return
<span id="L339" class="LineNr">339 </span>
<span id="L340" class="LineNr">340 </span><span class="subxFunction">set-cursor-position-on-real-screen</span>: <span class="subxComment"># x: int, y: int</span>
<span id="L341" class="LineNr">341 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L342" class="LineNr">342 </span> 55/push-ebp
<span id="L343" class="LineNr">343 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L344" class="LineNr">344 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L345" class="LineNr">345 </span> 50/push-eax
<span id="L346" class="LineNr">346 </span> <span class="subxComment">#</span>
<span id="L347" class="LineNr">347 </span> 8b/-&gt; *(ebp+8) 0/r32/eax
<span id="L348" class="LineNr">348 </span> 89/&lt;- *<span class="SpecialChar"><a href='103glyph.subx.html#L401'>Real-screen-cursor-x</a></span> 0/r32/eax
<span id="L349" class="LineNr">349 </span> 8b/-&gt; *(ebp+0xc) 0/r32/eax
<span id="L350" class="LineNr">350 </span> 89/&lt;- *<span class="SpecialChar"><a href='103glyph.subx.html#L403'>Real-screen-cursor-y</a></span> 0/r32/eax
<span id="L351" class="LineNr">351 </span><span class="Constant">$set-cursor-position-on-real-screen:end</span>:
<span id="L352" class="LineNr">352 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L353" class="LineNr">353 </span> 58/pop-to-eax
<span id="L354" class="LineNr">354 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L355" class="LineNr">355 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L356" class="LineNr">356 </span> 5d/pop-to-ebp
<span id="L357" class="LineNr">357 </span> c3/return
<span id="L358" class="LineNr">358 </span>
<span id="L359" class="LineNr">359 </span><span class="subxComment"># Not a real `show-cursor` primitive:</span>
<span id="L360" class="LineNr">360 </span><span class="subxComment"># - does not clear previous location cursor was shown at.</span>
<span id="L361" class="LineNr">361 </span><span class="subxComment"># - does not preserve what was at the cursor. Caller is responsible for</span>
<span id="L362" class="LineNr">362 </span><span class="subxComment"># tracking what was on the screen at this position before and passing it</span>
<span id="L363" class="LineNr">363 </span><span class="subxComment"># in again.</span>
<span id="L364" class="LineNr">364 </span><span class="subxComment"># - does not stop showing the cursor at this location when the cursor moves</span>
<span id="L365" class="LineNr">365 </span><span class="subxFunction">draw-cursor-on-real-screen</span>: <span class="subxComment"># c: code-point</span>
<span id="L366" class="LineNr">366 </span> <span class="subxS1Comment"># . prologue</span>
<span id="L367" class="LineNr">367 </span> 55/push-ebp
<span id="L368" class="LineNr">368 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L369" class="LineNr">369 </span> <span class="subxS1Comment"># . save registers</span>
<span id="L370" class="LineNr">370 </span> 50/push-eax
<span id="L371" class="LineNr">371 </span> 51/push-ecx
<span id="L372" class="LineNr">372 </span> <span class="subxComment">#</span>
<span id="L373" class="LineNr">373 </span> (<a href='103glyph.subx.html#L327'>cursor-position-on-real-screen</a>) <span class="subxComment"># =&gt; eax, ecx</span>
<span id="L374" class="LineNr">374 </span> (<a href='103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> *(ebp+8) %eax %ecx 0 7) <span class="subxComment"># =&gt; eax</span>
<span id="L375" class="LineNr">375 </span><span class="Constant">$draw-cursor-on-real-screen:end</span>:
<span id="L376" class="LineNr">376 </span> <span class="subxS1Comment"># . restore registers</span>
<span id="L377" class="LineNr">377 </span> 59/pop-to-ecx
<span id="L378" class="LineNr">378 </span> 58/pop-to-eax
<span id="L379" class="LineNr">379 </span> <span class="subxS1Comment"># . epilogue</span>
<span id="L380" class="LineNr">380 </span> 89/&lt;- %esp 5/r32/ebp
<span id="L381" class="LineNr">381 </span> 5d/pop-to-ebp
<span id="L382" class="LineNr">382 </span> c3/return
<span id="L383" class="LineNr">383 </span>
<span id="L384" class="LineNr">384 </span>== data
<span id="L385" class="LineNr">385 </span>
<span id="L386" class="LineNr">386 </span><span class="subxComment"># The cursor is where certain Mu functions (usually of the form</span>
<span id="L387" class="LineNr">387 </span><span class="subxComment"># 'draw*cursor*') print to by default.</span>
<span id="L388" class="LineNr">388 </span><span class="subxComment">#</span>
<span id="L389" class="LineNr">389 </span><span class="subxComment"># We don't bother displaying the cursor when drawing. It only becomes visible</span>
<span id="L390" class="LineNr">390 </span><span class="subxComment"># on draw-cursor, which is quite rickety (see above)</span>
<span id="L391" class="LineNr">391 </span><span class="subxComment">#</span>
<span id="L392" class="LineNr">392 </span><span class="subxComment"># It's up to applications to manage cursor display:</span>
<span id="L393" class="LineNr">393 </span><span class="subxComment"># - clean up where it used to be</span>
<span id="L394" class="LineNr">394 </span><span class="subxComment"># - display the cursor before waiting for a key</span>
<span id="L395" class="LineNr">395 </span><span class="subxComment"># - ensure its location appropriately suggests the effect keystrokes will have</span>
<span id="L396" class="LineNr">396 </span><span class="subxComment"># - ensure its contents (and colors) appropriately reflect the state of the</span>
<span id="L397" class="LineNr">397 </span><span class="subxComment"># screen</span>
<span id="L398" class="LineNr">398 </span><span class="subxComment">#</span>
<span id="L399" class="LineNr">399 </span><span class="subxComment"># There's no blinking, etc. We aren't using any hardware-supported text mode</span>
<span id="L400" class="LineNr">400 </span><span class="subxComment"># here.</span>
<span id="L401" class="LineNr">401 </span><span class="SpecialChar">Real-screen-cursor-x</span>:
<span id="L402" class="LineNr">402 </span> 0/imm32
<span id="L403" class="LineNr">403 </span><span class="SpecialChar">Real-screen-cursor-y</span>:
<span id="L404" class="LineNr">404 </span> 0/imm32
</pre>
</body>
</html>

2
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@ -1071,7 +1071,7 @@ if ('onhashchange' in window) {
<span id="L1010" class="LineNr">1010 </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="L1011" class="LineNr">1011 </span> <span class="subxComment"># skip payload-&gt;allocid</span>
<span id="L1012" class="LineNr">1012 </span> 05/add-to-eax 4/imm32
<span id="L1013" class="Folded">1013 </span><span class="Folded">+-- 26 lines: #? # dump eax ---------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1013" class="Folded">1013 </span><span class="Folded">+-- 26 lines: #? # dump eax -------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1039" class="LineNr">1039 </span> <span class="subxComment"># eax = string-equal?(eax, &quot;Abc&quot;)</span>
<span id="L1040" class="LineNr">1040 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L1041" class="LineNr">1041 </span> 68/push <span class="Constant">&quot;Abc&quot;</span>/imm32

2
html/126write-int-decimal.subx.html generated
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@ -286,7 +286,7 @@ if ('onhashchange' in window) {
<span id="L225" class="LineNr">225 </span> e8/call <a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a>/disp32
<span id="L226" class="LineNr">226 </span> <span class="subxS2Comment"># . . discard args</span>
<span id="L227" class="LineNr">227 </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="L228" class="Folded">228 </span><span class="Folded">+-- 26 lines: #? # dump _test-stream ------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L228" class="Folded">228 </span><span class="Folded">+-- 26 lines: #? # dump _test-stream ----------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L254" class="LineNr">254 </span> <span class="subxComment"># check-stream-equal(_test-stream, &quot;-9&quot;, msg)</span>
<span id="L255" class="LineNr">255 </span> <span class="subxS2Comment"># . . push args</span>
<span id="L256" class="LineNr">256 </span> 68/push <span class="Constant">&quot;F - test-write-int32-decimal-negative&quot;</span>/imm32

2
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@ -65,7 +65,7 @@ if ('onhashchange' in window) {
<span id="L7" class="LineNr"> 7 </span> 55/push-ebp
<span id="L8" class="LineNr"> 8 </span> 89/&lt;- %ebp 4/r32/esp
<span id="L9" class="LineNr"> 9 </span> <span class="subxComment">#</span>
<span id="L10" class="LineNr"> 10 </span> (<a href='103glyph.subx.html#L301'>set-cursor-position-on-real-screen</a> 0 0)
<span id="L10" class="LineNr"> 10 </span> (<a href='103glyph.subx.html#L340'>set-cursor-position-on-real-screen</a> 0 0)
<span id="L11" class="LineNr"> 11 </span> (<a href='501draw-text.mu.html#L284'>draw-text-wrapping-right-then-down-from-cursor-over-full-screen</a> 0 *(ebp+8) 0xf 0xc) <span class="subxComment"># 0/real-screen, 0xf/fg=white, 0xc/bg=red</span>
<span id="L12" class="LineNr"> 12 </span> (<a href='317abort.subx.html#L21'>dump-call-stack</a>)
<span id="L13" class="LineNr"> 13 </span> <span class="subxComment"># crash</span>

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@ -57,126 +57,128 @@ 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='103glyph.subx.html#L18'>draw-code-point-on-real-screen</a> c: code-point, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L4" class="LineNr"> 4 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L30'>draw-code-point-on-screen-array</a> screen-data: (addr array byte), c: code-point, x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L5" class="LineNr"> 5 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L113'>wide-code-point?</a> c: code-point<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L6" class="LineNr"> 6 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L288'>cursor-position-on-real-screen</a><span class="PreProc"> -&gt; </span>_/eax: int, _/<span class="muRegEcx">ecx</span>: int
<span id="L7" class="LineNr"> 7 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L301'>set-cursor-position-on-real-screen</a> x: int, y: int
<span id="L8" class="LineNr"> 8 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L326'>draw-cursor-on-real-screen</a> c: code-point
<span id="L9" class="LineNr"> 9 </span><span class="PreProc">sig</span> <a href='316colors.subx.html#L7'>color-rgb</a> color: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int, _/<span class="muRegEdx">edx</span>: int, _/<span class="muRegEbx">ebx</span>: int
<span id="L10" class="LineNr"> 10 </span>
<span id="L11" class="LineNr"> 11 </span><span class="muComment"># timer</span>
<span id="L12" class="LineNr"> 12 </span><span class="PreProc">sig</span> <a href='319timer.subx.html#L3'>timer-counter</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L13" class="LineNr"> 13 </span>
<span id="L14" class="LineNr"> 14 </span><span class="muComment"># keyboard</span>
<span id="L15" class="LineNr"> 15 </span><span class="PreProc">sig</span> <a href='102keyboard.subx.html#L21'>read-key</a> kbd: (addr keyboard)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L16" class="LineNr"> 16 </span>
<span id="L17" class="LineNr"> 17 </span><span class="muComment"># disk</span>
<span id="L18" class="LineNr"> 18 </span><span class="PreProc">sig</span> <a href='boot.subx.html#L762'>read-ata-disk</a> disk: (addr disk), lba: int, n: int, out: (addr stream byte)
<span id="L19" class="LineNr"> 19 </span><span class="PreProc">sig</span> <a href='boot.subx.html#L831'>write-ata-disk</a> disk: (addr disk), lba: int, n: int, out: (addr stream byte)
<span id="L20" class="LineNr"> 20 </span>
<span id="L21" class="LineNr"> 21 </span><span class="muComment"># mouse</span>
<span id="L22" class="LineNr"> 22 </span><span class="PreProc">sig</span> <a href='boot.subx.html#L1237'>read-mouse-event</a><span class="PreProc"> -&gt; </span>_/eax: int, _/<span class="muRegEcx">ecx</span>: int
<span id="L23" class="LineNr"> 23 </span>
<span id="L24" class="LineNr"> 24 </span><span class="muComment"># tests</span>
<span id="L25" class="LineNr"> 25 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L5'>count-test-failure</a>
<span id="L26" class="LineNr"> 26 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L17'>num-test-failures</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L27" class="LineNr"> 27 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L29'>running-tests?</a><span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L28" class="LineNr"> 28 </span>
<span id="L29" class="LineNr"> 29 </span><span class="PreProc">sig</span> <a href='105string-equal.subx.html#L8'>string-equal?</a> s: (addr array byte), benchmark: (addr array byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L30" class="LineNr"> 30 </span><span class="PreProc">sig</span> <a href='105string-equal.subx.html#L50'>string-starts-with?</a> s: (addr array byte), benchmark: (addr array byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L31" class="LineNr"> 31 </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="L32" class="LineNr"> 32 </span>
<span id="L33" class="LineNr"> 33 </span><span class="muComment"># debugging</span>
<span id="L34" class="LineNr"> 34 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L5'>check-stack</a>
<span id="L35" class="LineNr"> 35 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L26'>show-stack-state</a>
<span id="L36" class="LineNr"> 36 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L56'>debug-print</a> x: (addr array byte), fg: int, bg: int
<span id="L37" class="LineNr"> 37 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L84'>debug-print?</a><span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L38" class="LineNr"> 38 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L96'>turn-on-debug-print</a>
<span id="L39" class="LineNr"> 39 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L108'>turn-off-debug-print</a>
<span id="L40" class="LineNr"> 40 </span><span class="PreProc">sig</span> <a href='317abort.subx.html#L5'>abort</a> e: (addr array byte)
<span id="L41" class="LineNr"> 41 </span><span class="PreProc">sig</span> <a href='317abort.subx.html#L21'>dump-call-stack</a>
<span id="L42" class="LineNr"> 42 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L78'>heap-bound</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L43" class="LineNr"> 43 </span>
<span id="L44" class="LineNr"> 44 </span><span class="PreProc">sig</span> <a href='318debug-counter.subx.html#L5'>count-event</a>
<span id="L45" class="LineNr"> 45 </span><span class="PreProc">sig</span> <a href='318debug-counter.subx.html#L17'>count-of-events</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L46" class="LineNr"> 46 </span>
<span id="L47" class="LineNr"> 47 </span><span class="muComment"># streams</span>
<span id="L48" class="LineNr"> 48 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L20'>clear-stream</a> f: (addr stream _)
<span id="L49" class="LineNr"> 49 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L59'>rewind-stream</a> f: (addr stream _)
<span id="L50" class="LineNr"> 50 </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>_/eax: boolean
<span id="L51" class="LineNr"> 51 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L211'>streams-data-equal?</a> a: (addr stream byte), b: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L52" class="LineNr"> 52 </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="L53" class="LineNr"> 53 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L300'>check-streams-data-equal</a> s: (addr stream _), expected: (addr stream _), msg: (addr array byte)
<span id="L54" class="LineNr"> 54 </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>_/eax: boolean
<span id="L55" class="LineNr"> 55 </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="L56" class="LineNr"> 56 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L11'>write</a> f: (addr stream byte), s: (addr array byte)
<span id="L57" class="LineNr"> 57 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L138'>try-write</a> f: (addr stream byte), s: (addr array byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L58" class="LineNr"> 58 </span><span class="muComment"># probably a bad idea; I definitely want to discourage its use for streams of non-bytes</span>
<span id="L59" class="LineNr"> 59 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L194'>stream-size</a> f: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L60" class="LineNr"> 60 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L176'>space-remaining-in-stream</a> f: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L61" class="LineNr"> 61 </span><span class="PreProc">sig</span> <a href='113write-stream.subx.html#L8'>write-stream</a> f: (addr stream byte), s: (addr stream byte)
<span id="L62" class="LineNr"> 62 </span><span class="PreProc">sig</span> <a href='113write-stream.subx.html#L163'>write-stream-immutable</a> f: (addr stream byte), s: (addr stream byte)
<span id="L63" class="LineNr"> 63 </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>_/eax: byte
<span id="L64" class="LineNr"> 64 </span><span class="PreProc">sig</span> <a href='112read-byte.subx.html#L47'>peek-byte</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L65" class="LineNr"> 65 </span><span class="PreProc">sig</span> <a href='115write-byte.subx.html#L12'>append-byte</a> f: (addr stream byte), n: int <span class="muComment"># really just a byte, but I want to pass in literal numbers</span>
<span id="L66" class="LineNr"> 66 </span><span class="muComment">#sig to-hex-char in/eax: int -&gt; out/eax: int</span>
<span id="L67" class="LineNr"> 67 </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 class="muComment"># really just a byte, but I want to pass in literal numbers</span>
<span id="L68" class="LineNr"> 68 </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="L69" class="LineNr"> 69 </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="L70" class="LineNr"> 70 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L9'>hex-int?</a> in: (addr slice)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L71" class="LineNr"> 71 </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>_/eax: int
<span id="L72" class="LineNr"> 72 </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>_/eax: int
<span id="L73" class="LineNr"> 73 </span><span class="muComment">#sig parse-hex-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
<span id="L74" class="LineNr"> 74 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L701'>hex-digit?</a> c: byte<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L75" class="LineNr"> 75 </span><span class="muComment">#sig from-hex-char in/eax: byte -&gt; out/eax: nibble</span>
<span id="L76" class="LineNr"> 76 </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>_/eax: int
<span id="L77" class="LineNr"> 77 </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>_/eax: int
<span id="L78" class="LineNr"> 78 </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>_/eax: int
<span id="L79" class="LineNr"> 79 </span><span class="muComment">#sig parse-decimal-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
<span id="L80" class="LineNr"> 80 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L312'>decimal-size</a> n: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L81" class="LineNr"> 81 </span><span class="muComment">#sig allocate ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
<span id="L82" class="LineNr"> 82 </span><span class="muComment">#sig allocate-raw ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
<span id="L83" class="LineNr"> 83 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L235'>lookup</a> h: (handle _T)<span class="PreProc"> -&gt; </span>_/eax: (addr _T)
<span id="L84" class="LineNr"> 84 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L460'>handle-equal?</a> a: (handle _T), b: (handle _T)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L85" class="LineNr"> 85 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L491'>copy-handle</a> src: (handle _T), dest: (addr handle _T)
<span id="L86" class="LineNr"> 86 </span><span class="muComment">#sig allocate-region ad: (addr allocation-descriptor), n: int, out: (addr handle allocation-descriptor)</span>
<span id="L87" class="LineNr"> 87 </span><span class="muComment">#sig allocate-array ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
<span id="L88" class="LineNr"> 88 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L702'>copy-array</a> ad: (addr allocation-descriptor), src: (addr array _T), out: (addr handle array _T)
<span id="L89" class="LineNr"> 89 </span><span class="muComment">#sig zero-out start: (addr byte), size: int</span>
<span id="L90" class="LineNr"> 90 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L9'>slice-empty?</a> s: (addr slice)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L91" class="LineNr"> 91 </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>_/eax: boolean
<span id="L92" class="LineNr"> 92 </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>_/eax: boolean
<span id="L93" class="LineNr"> 93 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L793'>write-slice</a> out: (addr stream byte), s: (addr slice)
<span id="L94" class="LineNr"> 94 </span><span class="muComment"># bad name alert</span>
<span id="L95" class="LineNr"> 95 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L898'>slice-to-string</a> ad: (addr allocation-descriptor), in: (addr slice), out: (addr handle array byte)
<span id="L96" class="LineNr"> 96 </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="L97" class="LineNr"> 97 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L327'>decimal-digit?</a> c: grapheme<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L98" class="LineNr"> 98 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L426'>to-decimal-digit</a> in: grapheme<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L99" class="LineNr"> 99 </span><span class="muComment"># bad name alert</span>
<span id="L100" class="LineNr">100 </span><span class="muComment"># next-word really tokenizes</span>
<span id="L101" class="LineNr">101 </span><span class="muComment"># next-raw-word really reads whitespace-separated words</span>
<span id="L102" class="LineNr">102 </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"># merges '#' comments into a single word</span>
<span id="L103" class="LineNr">103 </span><span class="PreProc">sig</span> <a href='127next-word.subx.html#L321'>next-raw-word</a> line: (addr stream byte), out: (addr slice) <span class="muComment"># does not merge '#' comments</span>
<span id="L104" class="LineNr">104 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L188'>skip-chars-matching</a> in: (addr stream byte), delimiter: byte
<span id="L105" class="LineNr">105 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L311'>skip-chars-matching-whitespace</a> in: (addr stream byte)
<span id="L106" class="LineNr">106 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L401'>skip-chars-not-matching</a> in: (addr stream byte), delimiter: byte
<span id="L107" class="LineNr">107 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L563'>skip-chars-not-matching-whitespace</a> in: (addr stream byte)
<span id="L108" class="LineNr">108 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L6'>stream-empty?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L109" class="LineNr">109 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L30'>stream-full?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L110" class="LineNr">110 </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="L111" class="LineNr">111 </span><span class="PreProc">sig</span> <a href='310copy-bytes.subx.html#L124'>unquote-stream-to-array</a> in: (addr stream _), out: (addr handle array _)
<span id="L112" class="LineNr">112 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L154'>stream-first</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L113" class="LineNr">113 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L181'>stream-final</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L114" class="LineNr">114 </span>
<span id="L115" class="LineNr">115 </span><span class="muComment">#sig copy-bytes src: (addr byte), dest: (addr byte), n: int</span>
<span id="L116" class="LineNr">116 </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="L117" class="LineNr">117 </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>_/eax: boolean
<span id="L118" class="LineNr">118 </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="L119" class="LineNr">119 </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="L120" class="LineNr">120 </span><span class="PreProc">sig</span> <a href='301array-equal.subx.html#L382'>check-array-equal</a> a: (addr array int), expected: (addr array byte), msg: (addr array byte)
<span id="L121" class="LineNr">121 </span>
<span id="L122" class="LineNr">122 </span><span class="PreProc">sig</span> <a href='314divide.subx.html#L3'>integer-divide</a> a: int, b: int<span class="PreProc"> -&gt; </span>_/eax: int, _/<span class="muRegEdx">edx</span>: int
<span id="L3" class="LineNr"> 3 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> c: code-point, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L4" class="LineNr"> 4 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L31'>overlay-code-point-on-real-screen</a> c: code-point, x: int, y: int, color: int, background-color: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L5" class="LineNr"> 5 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L43'>draw-code-point-on-screen-array</a> screen-data: (addr array byte), c: code-point, x: int, y: int, color: int, background-color: int, screen-width: int, screen-height: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L6" class="LineNr"> 6 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L127'>wide-code-point?</a> c: code-point<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L7" class="LineNr"> 7 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L150'>combining-code-point?</a> c: code-point<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L8" class="LineNr"> 8 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L327'>cursor-position-on-real-screen</a><span class="PreProc"> -&gt; </span>_/eax: int, _/<span class="muRegEcx">ecx</span>: int
<span id="L9" class="LineNr"> 9 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L340'>set-cursor-position-on-real-screen</a> x: int, y: int
<span id="L10" class="LineNr"> 10 </span><span class="PreProc">sig</span> <a href='103glyph.subx.html#L365'>draw-cursor-on-real-screen</a> c: code-point
<span id="L11" class="LineNr"> 11 </span><span class="PreProc">sig</span> <a href='316colors.subx.html#L7'>color-rgb</a> color: int<span class="PreProc"> -&gt; </span>_/<span class="muRegEcx">ecx</span>: int, _/<span class="muRegEdx">edx</span>: int, _/<span class="muRegEbx">ebx</span>: int
<span id="L12" class="LineNr"> 12 </span>
<span id="L13" class="LineNr"> 13 </span><span class="muComment"># timer</span>
<span id="L14" class="LineNr"> 14 </span><span class="PreProc">sig</span> <a href='319timer.subx.html#L3'>timer-counter</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L15" class="LineNr"> 15 </span>
<span id="L16" class="LineNr"> 16 </span><span class="muComment"># keyboard</span>
<span id="L17" class="LineNr"> 17 </span><span class="PreProc">sig</span> <a href='102keyboard.subx.html#L21'>read-key</a> kbd: (addr keyboard)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L18" class="LineNr"> 18 </span>
<span id="L19" class="LineNr"> 19 </span><span class="muComment"># disk</span>
<span id="L20" class="LineNr"> 20 </span><span class="PreProc">sig</span> <a href='boot.subx.html#L762'>read-ata-disk</a> disk: (addr disk), lba: int, n: int, out: (addr stream byte)
<span id="L21" class="LineNr"> 21 </span><span class="PreProc">sig</span> <a href='boot.subx.html#L831'>write-ata-disk</a> disk: (addr disk), lba: int, n: int, out: (addr stream byte)
<span id="L22" class="LineNr"> 22 </span>
<span id="L23" class="LineNr"> 23 </span><span class="muComment"># mouse</span>
<span id="L24" class="LineNr"> 24 </span><span class="PreProc">sig</span> <a href='boot.subx.html#L1237'>read-mouse-event</a><span class="PreProc"> -&gt; </span>_/eax: int, _/<span class="muRegEcx">ecx</span>: int
<span id="L25" class="LineNr"> 25 </span>
<span id="L26" class="LineNr"> 26 </span><span class="muComment"># tests</span>
<span id="L27" class="LineNr"> 27 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L5'>count-test-failure</a>
<span id="L28" class="LineNr"> 28 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L17'>num-test-failures</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L29" class="LineNr"> 29 </span><span class="PreProc">sig</span> <a href='104test.subx.html#L29'>running-tests?</a><span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L30" class="LineNr"> 30 </span>
<span id="L31" class="LineNr"> 31 </span><span class="PreProc">sig</span> <a href='105string-equal.subx.html#L8'>string-equal?</a> s: (addr array byte), benchmark: (addr array byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L32" class="LineNr"> 32 </span><span class="PreProc">sig</span> <a href='105string-equal.subx.html#L50'>string-starts-with?</a> s: (addr array byte), benchmark: (addr array byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L33" class="LineNr"> 33 </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="L34" class="LineNr"> 34 </span>
<span id="L35" class="LineNr"> 35 </span><span class="muComment"># debugging</span>
<span id="L36" class="LineNr"> 36 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L5'>check-stack</a>
<span id="L37" class="LineNr"> 37 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L26'>show-stack-state</a>
<span id="L38" class="LineNr"> 38 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L56'>debug-print</a> x: (addr array byte), fg: int, bg: int
<span id="L39" class="LineNr"> 39 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L84'>debug-print?</a><span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L40" class="LineNr"> 40 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L96'>turn-on-debug-print</a>
<span id="L41" class="LineNr"> 41 </span><span class="PreProc">sig</span> <a href='315stack-debug.subx.html#L108'>turn-off-debug-print</a>
<span id="L42" class="LineNr"> 42 </span><span class="PreProc">sig</span> <a href='317abort.subx.html#L5'>abort</a> e: (addr array byte)
<span id="L43" class="LineNr"> 43 </span><span class="PreProc">sig</span> <a href='317abort.subx.html#L21'>dump-call-stack</a>
<span id="L44" class="LineNr"> 44 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L78'>heap-bound</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L45" class="LineNr"> 45 </span>
<span id="L46" class="LineNr"> 46 </span><span class="PreProc">sig</span> <a href='318debug-counter.subx.html#L5'>count-event</a>
<span id="L47" class="LineNr"> 47 </span><span class="PreProc">sig</span> <a href='318debug-counter.subx.html#L17'>count-of-events</a><span class="PreProc"> -&gt; </span>_/eax: int
<span id="L48" class="LineNr"> 48 </span>
<span id="L49" class="LineNr"> 49 </span><span class="muComment"># streams</span>
<span id="L50" class="LineNr"> 50 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L20'>clear-stream</a> f: (addr stream _)
<span id="L51" class="LineNr"> 51 </span><span class="PreProc">sig</span> <a href='106stream.subx.html#L59'>rewind-stream</a> f: (addr stream _)
<span id="L52" class="LineNr"> 52 </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>_/eax: boolean
<span id="L53" class="LineNr"> 53 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L211'>streams-data-equal?</a> a: (addr stream byte), b: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L54" class="LineNr"> 54 </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="L55" class="LineNr"> 55 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L300'>check-streams-data-equal</a> s: (addr stream _), expected: (addr stream _), msg: (addr array byte)
<span id="L56" class="LineNr"> 56 </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>_/eax: boolean
<span id="L57" class="LineNr"> 57 </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="L58" class="LineNr"> 58 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L11'>write</a> f: (addr stream byte), s: (addr array byte)
<span id="L59" class="LineNr"> 59 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L138'>try-write</a> f: (addr stream byte), s: (addr array byte)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L60" class="LineNr"> 60 </span><span class="muComment"># probably a bad idea; I definitely want to discourage its use for streams of non-bytes</span>
<span id="L61" class="LineNr"> 61 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L194'>stream-size</a> f: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L62" class="LineNr"> 62 </span><span class="PreProc">sig</span> <a href='108write.subx.html#L176'>space-remaining-in-stream</a> f: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L63" class="LineNr"> 63 </span><span class="PreProc">sig</span> <a href='113write-stream.subx.html#L8'>write-stream</a> f: (addr stream byte), s: (addr stream byte)
<span id="L64" class="LineNr"> 64 </span><span class="PreProc">sig</span> <a href='113write-stream.subx.html#L163'>write-stream-immutable</a> f: (addr stream byte), s: (addr stream byte)
<span id="L65" class="LineNr"> 65 </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>_/eax: byte
<span id="L66" class="LineNr"> 66 </span><span class="PreProc">sig</span> <a href='112read-byte.subx.html#L47'>peek-byte</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L67" class="LineNr"> 67 </span><span class="PreProc">sig</span> <a href='115write-byte.subx.html#L12'>append-byte</a> f: (addr stream byte), n: int <span class="muComment"># really just a byte, but I want to pass in literal numbers</span>
<span id="L68" class="LineNr"> 68 </span><span class="muComment">#sig to-hex-char in/eax: int -&gt; out/eax: int</span>
<span id="L69" class="LineNr"> 69 </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 class="muComment"># really just a byte, but I want to pass in literal numbers</span>
<span id="L70" class="LineNr"> 70 </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="L71" class="LineNr"> 71 </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="L72" class="LineNr"> 72 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L9'>hex-int?</a> in: (addr slice)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L73" class="LineNr"> 73 </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>_/eax: int
<span id="L74" class="LineNr"> 74 </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>_/eax: int
<span id="L75" class="LineNr"> 75 </span><span class="muComment">#sig parse-hex-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
<span id="L76" class="LineNr"> 76 </span><span class="PreProc">sig</span> <a href='118parse-hex-int.subx.html#L701'>hex-digit?</a> c: byte<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L77" class="LineNr"> 77 </span><span class="muComment">#sig from-hex-char in/eax: byte -&gt; out/eax: nibble</span>
<span id="L78" class="LineNr"> 78 </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>_/eax: int
<span id="L79" class="LineNr"> 79 </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>_/eax: int
<span id="L80" class="LineNr"> 80 </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>_/eax: int
<span id="L81" class="LineNr"> 81 </span><span class="muComment">#sig parse-decimal-int-helper start: (addr byte), end: (addr byte) -&gt; _/eax: int</span>
<span id="L82" class="LineNr"> 82 </span><span class="PreProc">sig</span> <a href='311decimal-int.subx.html#L312'>decimal-size</a> n: int<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L83" class="LineNr"> 83 </span><span class="muComment">#sig allocate ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
<span id="L84" class="LineNr"> 84 </span><span class="muComment">#sig allocate-raw ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
<span id="L85" class="LineNr"> 85 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L235'>lookup</a> h: (handle _T)<span class="PreProc"> -&gt; </span>_/eax: (addr _T)
<span id="L86" class="LineNr"> 86 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L460'>handle-equal?</a> a: (handle _T), b: (handle _T)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L87" class="LineNr"> 87 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L491'>copy-handle</a> src: (handle _T), dest: (addr handle _T)
<span id="L88" class="LineNr"> 88 </span><span class="muComment">#sig allocate-region ad: (addr allocation-descriptor), n: int, out: (addr handle allocation-descriptor)</span>
<span id="L89" class="LineNr"> 89 </span><span class="muComment">#sig allocate-array ad: (addr allocation-descriptor), n: int, out: (addr handle _)</span>
<span id="L90" class="LineNr"> 90 </span><span class="PreProc">sig</span> <a href='120allocate.subx.html#L702'>copy-array</a> ad: (addr allocation-descriptor), src: (addr array _T), out: (addr handle array _T)
<span id="L91" class="LineNr"> 91 </span><span class="muComment">#sig zero-out start: (addr byte), size: int</span>
<span id="L92" class="LineNr"> 92 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L9'>slice-empty?</a> s: (addr slice)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L93" class="LineNr"> 93 </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>_/eax: boolean
<span id="L94" class="LineNr"> 94 </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>_/eax: boolean
<span id="L95" class="LineNr"> 95 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L793'>write-slice</a> out: (addr stream byte), s: (addr slice)
<span id="L96" class="LineNr"> 96 </span><span class="muComment"># bad name alert</span>
<span id="L97" class="LineNr"> 97 </span><span class="PreProc">sig</span> <a href='123slice.subx.html#L898'>slice-to-string</a> ad: (addr allocation-descriptor), in: (addr slice), out: (addr handle array byte)
<span id="L98" class="LineNr"> 98 </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="L99" class="LineNr"> 99 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L327'>decimal-digit?</a> c: grapheme<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L100" class="LineNr">100 </span><span class="PreProc">sig</span> <a href='126write-int-decimal.subx.html#L426'>to-decimal-digit</a> in: grapheme<span class="PreProc"> -&gt; </span>_/eax: int
<span id="L101" class="LineNr">101 </span><span class="muComment"># bad name alert</span>
<span id="L102" class="LineNr">102 </span><span class="muComment"># next-word really tokenizes</span>
<span id="L103" class="LineNr">103 </span><span class="muComment"># next-raw-word really reads whitespace-separated words</span>
<span id="L104" class="LineNr">104 </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"># merges '#' comments into a single word</span>
<span id="L105" class="LineNr">105 </span><span class="PreProc">sig</span> <a href='127next-word.subx.html#L321'>next-raw-word</a> line: (addr stream byte), out: (addr slice) <span class="muComment"># does not merge '#' comments</span>
<span id="L106" class="LineNr">106 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L188'>skip-chars-matching</a> in: (addr stream byte), delimiter: byte
<span id="L107" class="LineNr">107 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L311'>skip-chars-matching-whitespace</a> in: (addr stream byte)
<span id="L108" class="LineNr">108 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L401'>skip-chars-not-matching</a> in: (addr stream byte), delimiter: byte
<span id="L109" class="LineNr">109 </span><span class="PreProc">sig</span> <a href='124next-token.subx.html#L563'>skip-chars-not-matching-whitespace</a> in: (addr stream byte)
<span id="L110" class="LineNr">110 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L6'>stream-empty?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L111" class="LineNr">111 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L30'>stream-full?</a> s: (addr stream _)<span class="PreProc"> -&gt; </span>_/eax: boolean
<span id="L112" class="LineNr">112 </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="L113" class="LineNr">113 </span><span class="PreProc">sig</span> <a href='310copy-bytes.subx.html#L124'>unquote-stream-to-array</a> in: (addr stream _), out: (addr handle array _)
<span id="L114" class="LineNr">114 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L154'>stream-first</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L115" class="LineNr">115 </span><span class="PreProc">sig</span> <a href='309stream.subx.html#L181'>stream-final</a> s: (addr stream byte)<span class="PreProc"> -&gt; </span>_/eax: byte
<span id="L116" class="LineNr">116 </span>
<span id="L117" class="LineNr">117 </span><span class="muComment">#sig copy-bytes src: (addr byte), dest: (addr byte), n: int</span>
<span id="L118" class="LineNr">118 </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="L119" class="LineNr">119 </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>_/eax: boolean
<span id="L120" class="LineNr">120 </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="L121" class="LineNr">121 </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="L122" class="LineNr">122 </span><span class="PreProc">sig</span> <a href='301array-equal.subx.html#L382'>check-array-equal</a> a: (addr array int), expected: (addr array byte), msg: (addr array byte)
<span id="L123" class="LineNr">123 </span>
<span id="L124" class="LineNr">124 </span><span class="PreProc">sig</span> <a href='314divide.subx.html#L3'>integer-divide</a> a: int, b: int<span class="PreProc"> -&gt; </span>_/eax: int, _/<span class="muRegEdx">edx</span>: int
</pre>
</body>
</html>

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@ -157,11 +157,11 @@ if ('onhashchange' in window) {
<span id="L94" class="LineNr"> 94 </span> <span class="Delimiter">{</span>
<span id="L95" class="LineNr"> 95 </span> compare <a href='500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>
<span id="L96" class="LineNr"> 96 </span> <span class="PreProc">break-if-!=</span>
<span id="L97" class="LineNr"> 97 </span> <span class="PreProc">var</span> result/eax: int <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L18'>draw-code-point-on-real-screen</a> c, x, y, color, background-color
<span id="L97" class="LineNr"> 97 </span> <span class="PreProc">var</span> result/eax: int <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> c, x, y, color, background-color
<span id="L98" class="LineNr"> 98 </span> <span class="PreProc">return</span> result
<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span>
<span id="L100" class="LineNr">100 </span> <span class="muComment"># fake screen</span>
<span id="L101" class="LineNr">101 </span> <span class="PreProc">var</span> wide?/eax: boolean <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L113'>wide-code-point?</a> c
<span id="L101" class="LineNr">101 </span> <span class="PreProc">var</span> wide?/eax: boolean <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L127'>wide-code-point?</a> c
<span id="L102" class="LineNr">102 </span> compare wide?, <span class="Constant">0</span>/false
<span id="L103" class="LineNr">103 </span> <span class="Delimiter">{</span>
<span id="L104" class="LineNr">104 </span> <span class="PreProc">break-if-=</span>
@ -297,7 +297,7 @@ if ('onhashchange' in window) {
<span id="L234" class="LineNr">234 </span> <span class="PreProc">break-if-!=</span>
<span id="L235" class="LineNr">235 </span> <span class="PreProc">var</span> x/eax: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
<span id="L236" class="LineNr">236 </span> <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
<span id="L237" class="LineNr">237 </span> x, y <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L288'>cursor-position-on-real-screen</a>
<span id="L237" class="LineNr">237 </span> x, y <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L327'>cursor-position-on-real-screen</a>
<span id="L238" class="LineNr">238 </span> <span class="PreProc">return</span> x, y
<span id="L239" class="LineNr">239 </span> <span class="Delimiter">}</span>
<span id="L240" class="LineNr">240 </span> <span class="muComment"># fake screen</span>
@ -311,7 +311,7 @@ if ('onhashchange' in window) {
<span id="L248" class="LineNr">248 </span> <span class="Delimiter">{</span>
<span id="L249" class="LineNr">249 </span> compare <a href='500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>
<span id="L250" class="LineNr">250 </span> <span class="PreProc">break-if-!=</span>
<span id="L251" class="LineNr">251 </span> <a href='103glyph.subx.html#L301'>set-cursor-position-on-real-screen</a> x, y
<span id="L251" class="LineNr">251 </span> <a href='103glyph.subx.html#L340'>set-cursor-position-on-real-screen</a> x, y
<span id="L252" class="LineNr">252 </span> <span class="PreProc">return</span>
<span id="L253" class="LineNr">253 </span> <span class="Delimiter">}</span>
<span id="L254" class="LineNr">254 </span> <span class="muComment"># fake screen</span>
@ -357,7 +357,7 @@ if ('onhashchange' in window) {
<span id="L294" class="LineNr">294 </span> <span class="Delimiter">{</span>
<span id="L295" class="LineNr">295 </span> compare <a href='500fake-screen.mu.html#L14'>screen</a>, <span class="Constant">0</span>
<span id="L296" class="LineNr">296 </span> <span class="PreProc">break-if-!=</span>
<span id="L297" class="LineNr">297 </span> <a href='103glyph.subx.html#L326'>draw-cursor-on-real-screen</a> c
<span id="L297" class="LineNr">297 </span> <a href='103glyph.subx.html#L365'>draw-cursor-on-real-screen</a> c
<span id="L298" class="LineNr">298 </span> <span class="PreProc">return</span>
<span id="L299" class="LineNr">299 </span> <span class="Delimiter">}</span>
<span id="L300" class="LineNr">300 </span> <span class="muComment"># fake screen</span>
@ -749,7 +749,7 @@ if ('onhashchange' in window) {
<span id="L686" class="LineNr">686 </span> <span class="PreProc">var</span> fg: int
<span id="L687" class="LineNr">687 </span> copy-to fg, tmp
<span id="L688" class="LineNr">688 </span> <span class="PreProc">var</span> bg/eax: int <span class="Special">&lt;-</span> <a href='500fake-screen.mu.html#L538'>screen-background-color-at</a> <a href='500fake-screen.mu.html#L14'>screen</a>, x, y
<span id="L689" class="LineNr">689 </span> <span class="PreProc">var</span> offset/eax: int <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L30'>draw-code-point-on-screen-array</a> data, c, x, y, fg, bg, *width-a, *height-a
<span id="L689" class="LineNr">689 </span> <span class="PreProc">var</span> offset/eax: int <span class="Special">&lt;-</span> <a href='103glyph.subx.html#L43'>draw-code-point-on-screen-array</a> data, c, x, y, fg, bg, *width-a, *height-a
<span id="L690" class="LineNr">690 </span> x <span class="Special">&lt;-</span> add offset
<span id="L691" class="LineNr">691 </span> <span class="PreProc">loop</span> $convert-screen-cells-to-pixels:loop-x
<span id="L692" class="LineNr">692 </span> <span class="Delimiter">}</span>

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@ -59,8 +59,8 @@ if ('onhashchange' in window) {
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Unicode demo</span>
<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span>
<span id="L3" class="LineNr"> 3 </span><span class="muComment"># Mu can't read Unicode from keyboard yet, so we'll read from disk and print</span>
<span id="L4" class="LineNr"> 4 </span><span class="muComment"># to screen.</span>
<span id="L3" class="LineNr"> 3 </span><span class="muComment"># Mu can't read Unicode from keyboard yet, so we'll read utf-8 from disk and</span>
<span id="L4" class="LineNr"> 4 </span><span class="muComment"># print to screen.</span>
<span id="L5" class="LineNr"> 5 </span><span class="muComment">#</span>
<span id="L6" class="LineNr"> 6 </span><span class="muComment"># Steps for trying it out:</span>
<span id="L7" class="LineNr"> 7 </span><span class="muComment"># 1. Translate this example into a disk image code.img.</span>
@ -72,18 +72,13 @@ if ('onhashchange' in window) {
<span id="L13" class="LineNr">13 </span><span class="muComment"># qemu-system-i386 -hda code.img -hdb data.img</span>
<span id="L14" class="LineNr">14 </span><span class="muComment">#</span>
<span id="L15" class="LineNr">15 </span><span class="muComment"># Expected output: 'நட' in green near the top-left corner of screen</span>
<span id="L16" class="LineNr">16 </span><span class="muComment">#</span>
<span id="L17" class="LineNr">17 </span><span class="muComment"># Limitations:</span>
<span id="L18" class="LineNr">18 </span><span class="muComment"># - Utf-8 is the one true encoding.</span>
<span id="L19" class="LineNr">19 </span><span class="muComment"># - No keyboard support yet.</span>
<span id="L20" class="LineNr">20 </span><span class="muComment"># - Just single-code-point graphemes so far. No combiner characters, etc.</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='ex14.mu.html#L22'>main</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), keyboard: (addr keyboard), data-disk: (addr disk) <span class="Delimiter">{</span>
<span id="L23" class="LineNr">23 </span> <span class="PreProc">var</span> text-storage: (stream byte <span class="Constant">0x200</span>)
<span id="L24" class="LineNr">24 </span> <span class="PreProc">var</span> text/<span class="muRegEsi">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address text-storage
<span id="L25" class="LineNr">25 </span> <a href='../510disk.mu.html#L1'>load-sectors</a> data-disk, <span class="Constant">0</span>/lba, <span class="Constant">1</span>/num-sectors, text
<span id="L26" class="LineNr">26 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L117'>draw-stream-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, text, <span class="Constant">0</span>/x <span class="Constant">0x80</span>/xmax <span class="Constant">0</span>/y, <span class="Constant">0xa</span>/fg, <span class="Constant">0</span>/bg
<span id="L27" class="LineNr">27 </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="muFunction"><a href='ex14.mu.html#L17'>main</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), keyboard: (addr keyboard), data-disk: (addr disk) <span class="Delimiter">{</span>
<span id="L18" class="LineNr">18 </span> <span class="PreProc">var</span> text-storage: (stream byte <span class="Constant">0x200</span>)
<span id="L19" class="LineNr">19 </span> <span class="PreProc">var</span> text/<span class="muRegEsi">esi</span>: (addr stream byte) <span class="Special">&lt;-</span> address text-storage
<span id="L20" class="LineNr">20 </span> <a href='../510disk.mu.html#L1'>load-sectors</a> data-disk, <span class="Constant">0</span>/lba, <span class="Constant">1</span>/num-sectors, text
<span id="L21" class="LineNr">21 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../501draw-text.mu.html#L117'>draw-stream-rightward</a> <a href='../500fake-screen.mu.html#L14'>screen</a>, text, <span class="Constant">0</span>/x <span class="Constant">0x80</span>/xmax <span class="Constant">0</span>/y, <span class="Constant">0xa</span>/fg, <span class="Constant">0</span>/bg
<span id="L22" class="LineNr">22 </span><span class="Delimiter">}</span>
</pre>
</body>
</html>

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@ -0,0 +1,98 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - apps/ex15.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: #ffffd7; }
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #ffffd7; }
a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.PreProc { color: #c000c0; }
.Special { color: #ff6060; }
.LineNr { }
.Constant { color: #008787; }
.Delimiter { color: #c000c0; }
.muFunction { color: #af5f00; text-decoration: underline; }
.muComment { color: #005faf; }
-->
</style>
<script type='text/javascript'>
<!--
/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
var lineNum;
lineNum = window.location.hash;
lineNum = lineNum.substr(1); /* strip off '#' */
if (lineNum.indexOf('L') == -1) {
lineNum = 'L'+lineNum;
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* we corrected the raw number to a line ID.
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lineElem.scrollIntoView(true);
}
return true;
}
if ('onhashchange' in window) {
window.onhashchange = JumpToLine;
}
-->
</script>
</head>
<body onload='JumpToLine();'>
<a href='https://github.com/akkartik/mu/blob/main/apps/ex15.mu'>https://github.com/akkartik/mu/blob/main/apps/ex15.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Demo of combining-character support in Mu, which can be summarized as, &quot;the</span>
<span id="L2" class="LineNr"> 2 </span><span class="muComment"># old typewriter-based approach of backing up one character and adding the</span>
<span id="L3" class="LineNr"> 3 </span><span class="muComment"># accent or _matra_ in.&quot;</span>
<span id="L4" class="LineNr"> 4 </span><span class="muComment"># <a href="https://en.wikipedia.org/wiki/Combining_character">https://en.wikipedia.org/wiki/Combining_character</a></span>
<span id="L5" class="LineNr"> 5 </span><span class="muComment">#</span>
<span id="L6" class="LineNr"> 6 </span><span class="muComment"># Mu uses this approach for both accents in Latin languages and vowel</span>
<span id="L7" class="LineNr"> 7 </span><span class="muComment"># diacritics in Abugida scripts.</span>
<span id="L8" class="LineNr"> 8 </span><span class="muComment"># <a href="https://en.wikipedia.org/wiki/Diacritic">https://en.wikipedia.org/wiki/Diacritic</a></span>
<span id="L9" class="LineNr"> 9 </span><span class="muComment"># <a href="https://en.wikipedia.org/wiki/Abugida">https://en.wikipedia.org/wiki/Abugida</a></span>
<span id="L10" class="LineNr">10 </span><span class="muComment">#</span>
<span id="L11" class="LineNr">11 </span><span class="muComment"># Steps for trying it out:</span>
<span id="L12" class="LineNr">12 </span><span class="muComment"># 1. Translate this example into a disk image code.img.</span>
<span id="L13" class="LineNr">13 </span><span class="muComment"># ./translate apps/ex15.mu</span>
<span id="L14" class="LineNr">14 </span><span class="muComment"># 2. Run:</span>
<span id="L15" class="LineNr">15 </span><span class="muComment"># qemu-system-i386 -hda code.img -hdb data.img</span>
<span id="L16" class="LineNr">16 </span><span class="muComment">#</span>
<span id="L17" class="LineNr">17 </span><span class="muComment"># Expected output: 'à' in green in a few places near the top-left corner of</span>
<span id="L18" class="LineNr">18 </span><span class="muComment"># screen, showing off what this approach can and cannot do.</span>
<span id="L19" class="LineNr">19 </span>
<span id="L20" class="LineNr">20 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex15.mu.html#L20'>main</a></span> <a href='../500fake-screen.mu.html#L14'>screen</a>: (addr <a href='../500fake-screen.mu.html#L14'>screen</a>), keyboard: (addr keyboard), data-disk: (addr disk) <span class="Delimiter">{</span>
<span id="L21" class="LineNr">21 </span> <span class="muComment"># at the top of screen, the accent is almost cropped</span>
<span id="L22" class="LineNr">22 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> <span class="Constant">0x61</span>/a, <span class="Constant">0</span>/x <span class="Constant">0</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L23" class="LineNr">23 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L31'>overlay-code-point-on-real-screen</a> <span class="Constant">0x0300</span>/combining-grave-accent, <span class="Constant">0</span>/x <span class="Constant">0</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L24" class="LineNr">24 </span>
<span id="L25" class="LineNr">25 </span> <span class="muComment"># below a grapheme with a descender, the accent uglily overlaps</span>
<span id="L26" class="LineNr">26 </span> <span class="muComment"># <a href="https://en.wikipedia.org/wiki/Descender">https://en.wikipedia.org/wiki/Descender</a></span>
<span id="L27" class="LineNr">27 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> <span class="Constant">0x67</span>/g, <span class="Constant">4</span>/x <span class="Constant">3</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L28" class="LineNr">28 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> <span class="Constant">0x61</span>/a, <span class="Constant">4</span>/x <span class="Constant">4</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L29" class="LineNr">29 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L31'>overlay-code-point-on-real-screen</a> <span class="Constant">0x0300</span>/combining-grave-accent, <span class="Constant">4</span>/x <span class="Constant">4</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L30" class="LineNr">30 </span>
<span id="L31" class="LineNr">31 </span> <span class="muComment"># beside a grapheme with a descender, it becomes more obvious that monowidth fonts can't make baselines line up</span>
<span id="L32" class="LineNr">32 </span> <span class="muComment"># <a href="https://en.wikipedia.org/wiki/Baseline_(typography)">https://en.wikipedia.org/wiki/Baseline_(typography)</a></span>
<span id="L33" class="LineNr">33 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> <span class="Constant">0x67</span>/g, <span class="Constant">8</span>/x <span class="Constant">3</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L34" class="LineNr">34 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L19'>draw-code-point-on-real-screen</a> <span class="Constant">0x61</span>/a, <span class="Constant">9</span>/x <span class="Constant">3</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L35" class="LineNr">35 </span> <span class="PreProc">var</span> dummy/eax: int <span class="Special">&lt;-</span> <a href='../103glyph.subx.html#L31'>overlay-code-point-on-real-screen</a> <span class="Constant">0x0300</span>/combining-grave-accent, <span class="Constant">9</span>/x <span class="Constant">3</span>/y, <span class="Constant">3</span>/fg <span class="Constant">0</span>/bg
<span id="L36" class="LineNr">36 </span><span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->

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@ -340,7 +340,7 @@ if ('onhashchange' in window) {
<span id="L280" class="LineNr"> 280 </span> c7 0/subop/copy *0x00100000 0/imm32/read
<span id="L281" class="LineNr"> 281 </span> c7 0/subop/copy *0x00100004 0/imm32/write
<span id="L282" class="LineNr"> 282 </span> c7 0/subop/copy *0x00100008 0x00e00000/imm32/size
<span id="L283" class="LineNr"> 283 </span> (<a href='510disk.mu.html#L1'>load-sectors</a> <span class="SpecialChar"><a href='boot.subx.html#L709'>Primary-bus-primary-drive</a></span> 0x2328 0x120 0x00100000) <span class="subxComment"># source 0x2328 = sector 9000 on disk, destination 0x00100000</span>
<span id="L283" class="LineNr"> 283 </span> (<a href='510disk.mu.html#L1'>load-sectors</a> <span class="SpecialChar"><a href='boot.subx.html#L709'>Primary-bus-primary-drive</a></span> 0x2328 0x200 0x00100000) <span class="subxComment"># source 0x2328 = sector 9000 on disk, destination 0x00100000</span>
<span id="L284" class="LineNr"> 284 </span> <span class="subxComment"># Font is now loaded starting at 0x0010000c.</span>
<span id="L285" class="LineNr"> 285 </span>
<span id="L286" class="LineNr"> 286 </span> <span class="subxComment">## load interrupt handlers</span>
@ -382,7 +382,7 @@ if ('onhashchange' in window) {
<span id="L322" class="LineNr"> 322 </span> ff 03 <span class="subxComment"># final index of idt = size of idt - 1</span>
<span id="L323" class="LineNr"> 323 </span> <a href='boot.subx.html#L327'>idt_start</a>/imm32/start
<span id="L324" class="LineNr"> 324 </span>
<span id="L325" class="Folded"> 325 </span><span class="Folded">+-- 55 lines: # interrupt descriptor table ----------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L325" class="Folded"> 325 </span><span class="Folded">+-- 55 lines: # interrupt descriptor table --------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L380" class="LineNr"> 380 </span>
<span id="L381" class="LineNr"> 381 </span>== code
<span id="L382" class="LineNr"> 382 </span>
@ -548,10 +548,10 @@ if ('onhashchange' in window) {
<span id="L542" class="LineNr"> 542 </span> 00 00 00 00
<span id="L543" class="LineNr"> 543 </span> 00 00 00 00
<span id="L544" class="LineNr"> 544 </span>
<span id="L545" class="Folded"> 545 </span><span class="Folded">+-- 95 lines: # Keyboard maps for translating keys to ASCII -----------------------------------------------------------------------------------------------------------------------------</span>
<span id="L545" class="Folded"> 545 </span><span class="Folded">+-- 95 lines: # Keyboard maps for translating keys to ASCII ---------------------------------------------------------------------------------------------------------------------------</span>
<span id="L640" class="LineNr"> 640 </span>
<span id="L641" class="LineNr"> 641 </span><span class="SpecialChar">Video-mode-info</span>:
<span id="L642" class="Folded"> 642 </span><span class="Folded">+-- 53 lines: # video mode info ---------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L642" class="Folded"> 642 </span><span class="Folded">+-- 53 lines: # video mode info -------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L695" class="LineNr"> 695 </span>
<span id="L696" class="LineNr"> 696 </span><span class="subxComment">## Controlling IDE (ATA) hard disks</span>
<span id="L697" class="LineNr"> 697 </span><span class="subxComment"># Uses 28-bit PIO mode.</span>
@ -795,7 +795,7 @@ if ('onhashchange' in window) {
<span id="L935" class="LineNr"> 935 </span> 5d/pop-to-ebp
<span id="L936" class="LineNr"> 936 </span> c3/return
<span id="L937" class="LineNr"> 937 </span>
<span id="L938" class="Folded"> 938 </span><span class="Folded">+--289 lines: # disk helpers ------------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L938" class="Folded"> 938 </span><span class="Folded">+--289 lines: # disk helpers ----------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1227" class="LineNr">1227 </span>
<span id="L1228" class="LineNr">1228 </span><span class="subxComment">## Controlling a PS/2 mouse</span>
<span id="L1229" class="LineNr">1229 </span><span class="subxComment"># Uses no IRQs, just polling.</span>
@ -856,7 +856,7 @@ if ('onhashchange' in window) {
<span id="L1284" class="LineNr">1284 </span> 5d/pop-to-ebp
<span id="L1285" class="LineNr">1285 </span> c3/return
<span id="L1286" class="LineNr">1286 </span>
<span id="L1287" class="Folded">1287 </span><span class="Folded">+--147 lines: # mouse helpers -----------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1287" class="Folded">1287 </span><span class="Folded">+--147 lines: # mouse helpers ---------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1434" class="LineNr">1434 </span>
<span id="L1435" class="LineNr">1435 </span><span class="subxComment"># vim&#0058;ft=subx</span>
</pre>

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@ -153,7 +153,7 @@ if ('onhashchange' in window) {
<span id="L89" class="LineNr"> 89 </span> <span class="PreProc">var</span> key/eax: byte <span class="Special">&lt;-</span> <a href='../102keyboard.subx.html#L21'>read-key</a> keyboard
<span id="L90" class="LineNr"> 90 </span> compare key, <span class="Constant">0</span>
<span id="L91" class="LineNr"> 91 </span> <span class="PreProc">loop-if-=</span>
<span id="L92" class="LineNr"> 92 </span> <a href='environment.mu.html#L765'>update-environment</a> env, key, users, channels, items
<span id="L92" class="LineNr"> 92 </span> <a href='environment.mu.html#L766'>update-environment</a> env, key, users, channels, items
<span id="L93" class="LineNr"> 93 </span> <span class="Delimiter">}</span>
<span id="L94" class="LineNr"> 94 </span> <span class="PreProc">loop</span>
<span id="L95" class="LineNr"> 95 </span> <span class="Delimiter">}</span>

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@ -79,8 +79,8 @@ if ('onhashchange' in window) {
<span id="L23" class="LineNr">23 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8
<span id="L24" class="LineNr">24 </span> c7 0/subop/copy *Running-tests? 0/imm32/false
<span id="L25" class="LineNr">25 </span> (<a href='500fake-screen.mu.html#L441'>clear-real-screen</a>)
<span id="L26" class="LineNr">26 </span> c7 0/subop/copy *<span class="SpecialChar"><a href='103glyph.subx.html#L362'>Real-screen-cursor-x</a></span> 0/imm32
<span id="L27" class="LineNr">27 </span> c7 0/subop/copy *<span class="SpecialChar"><a href='103glyph.subx.html#L364'>Real-screen-cursor-y</a></span> 0/imm32
<span id="L26" class="LineNr">26 </span> c7 0/subop/copy *<span class="SpecialChar"><a href='103glyph.subx.html#L401'>Real-screen-cursor-x</a></span> 0/imm32
<span id="L27" class="LineNr">27 </span> c7 0/subop/copy *<span class="SpecialChar"><a href='103glyph.subx.html#L403'>Real-screen-cursor-y</a></span> 0/imm32
<span id="L28" class="LineNr">28 </span> (main 0 0 <span class="SpecialChar"><a href='boot.subx.html#L735'>Primary-bus-secondary-drive</a></span>)
<span id="L29" class="LineNr">29 </span> }
<span id="L30" class="LineNr">30 </span>

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@ -128,7 +128,7 @@ if ('onhashchange' in window) {
<span id="L62" class="LineNr"> 62 </span><span class="CommentedCode">#? compare foo, 0</span>
<span id="L63" class="LineNr"> 63 </span><span class="CommentedCode">#? loop-if-=</span>
<span id="L64" class="LineNr"> 64 </span><span class="CommentedCode">#? }</span>
<span id="L65" class="Folded"> 65 </span><span class="Folded">+-- 19 lines: # trace &quot;evaluate &quot; in &quot; in environment &quot; env -----------------------------------------------------------------------------------------------------------------------------</span>
<span id="L65" class="Folded"> 65 </span><span class="Folded">+-- 19 lines: # trace &quot;evaluate &quot; in &quot; in environment &quot; env ---------------------------------------------------------------------------------------------------------------------------</span>
<span id="L84" class="LineNr"> 84 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L85" class="LineNr"> 85 </span> <span class="PreProc">var</span> in/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *in-ah
<span id="L86" class="LineNr"> 86 </span> <span class="Delimiter">{</span>
@ -652,7 +652,7 @@ if ('onhashchange' in window) {
<span id="L604" class="LineNr"> 604 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L605" class="LineNr"> 605 </span> <span class="PreProc">return</span>
<span id="L606" class="LineNr"> 606 </span> <span class="Delimiter">}</span>
<span id="L607" class="Folded"> 607 </span><span class="Folded">+-- 15 lines: # trace &quot;evaluate function call elements in &quot; in --------------------------------------------------------------------------------------------------------------------------</span>
<span id="L607" class="Folded"> 607 </span><span class="Folded">+-- 15 lines: # trace &quot;evaluate function call elements in &quot; in ------------------------------------------------------------------------------------------------------------------------</span>
<span id="L622" class="LineNr"> 622 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L623" class="LineNr"> 623 </span> <span class="PreProc">var</span> evaluated-list-storage: (handle <a href='cell.mu.html#L1'>cell</a>)
<span id="L624" class="LineNr"> 624 </span> <span class="PreProc">var</span> evaluated-list-ah/<span class="muRegEsi">esi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> address evaluated-list-storage
@ -694,7 +694,7 @@ if ('onhashchange' in window) {
<span id="L660" class="LineNr"> 660 </span> <a href='evaluate.mu.html#L681'>apply</a> function-ah, args-ah, _out-ah, globals, trace, inner-screen-var, inner-keyboard-var, definitions-created, call-number
<span id="L661" class="LineNr"> 661 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;Y&quot;</span>, <span class="Constant">4</span>/fg, <span class="Constant">0</span>/bg
<span id="L662" class="LineNr"> 662 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L663" class="Folded"> 663 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; _out-ah -----------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L663" class="Folded"> 663 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; _out-ah ---------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L678" class="LineNr"> 678 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;Z&quot;</span>, <span class="Constant">4</span>/fg, <span class="Constant">0</span>/bg
<span id="L679" class="LineNr"> 679 </span><span class="Delimiter">}</span>
<span id="L680" class="LineNr"> 680 </span>
@ -711,7 +711,7 @@ if ('onhashchange' in window) {
<span id="L691" class="LineNr"> 691 </span> <span class="PreProc">return</span>
<span id="L692" class="LineNr"> 692 </span> <span class="Delimiter">}</span>
<span id="L693" class="LineNr"> 693 </span> <span class="muComment"># if it's not a primitive function it must be an anonymous function</span>
<span id="L694" class="Folded"> 694 </span><span class="Folded">+-- 19 lines: # trace &quot;apply anonymous function &quot; f &quot; in environment &quot; env --------------------------------------------------------------------------------------------------------------</span>
<span id="L694" class="Folded"> 694 </span><span class="Folded">+-- 19 lines: # trace &quot;apply anonymous function &quot; f &quot; in environment &quot; env ------------------------------------------------------------------------------------------------------------</span>
<span id="L713" class="LineNr"> 713 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L714" class="LineNr"> 714 </span> <span class="Delimiter">{</span>
<span id="L715" class="LineNr"> 715 </span> <span class="PreProc">var</span> f-type/<span class="muRegEcx">ecx</span>: (addr int) <span class="Special">&lt;-</span> get f, <span class="PreProc">type</span>
@ -812,7 +812,7 @@ if ('onhashchange' in window) {
<span id="L810" class="LineNr"> 810 </span> <span class="PreProc">return</span>
<span id="L811" class="LineNr"> 811 </span> <span class="Delimiter">}</span>
<span id="L812" class="LineNr"> 812 </span> <span class="muComment"># Params can only be symbols or pairs. Args can be anything.</span>
<span id="L813" class="Folded"> 813 </span><span class="Folded">+-- 28 lines: # trace &quot;pushing bindings from &quot; params &quot; to &quot; args -----------------------------------------------------------------------------------------------------------------------</span>
<span id="L813" class="Folded"> 813 </span><span class="Folded">+-- 28 lines: # trace &quot;pushing bindings from &quot; params &quot; to &quot; args ---------------------------------------------------------------------------------------------------------------------</span>
<span id="L841" class="LineNr"> 841 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L842" class="LineNr"> 842 </span> <span class="PreProc">var</span> params-type/eax: (addr int) <span class="Special">&lt;-</span> get params, <span class="PreProc">type</span>
<span id="L843" class="LineNr"> 843 </span> compare *params-type, <span class="Constant">2</span>/symbol
@ -919,7 +919,7 @@ if ('onhashchange' in window) {
<span id="L944" class="LineNr"> 944 </span> <a href='global.mu.html#L369'>lookup-symbol-in-globals</a> sym, out, globals, trace, inner-screen-var, inner-keyboard-var
<span id="L945" class="LineNr"> 945 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;x&quot;</span>, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
<span id="L946" class="LineNr"> 946 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L947" class="Folded"> 947 </span><span class="Folded">+-- 23 lines: # trace &quot;=&gt; &quot; out &quot; (global)&quot; ---------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L947" class="Folded"> 947 </span><span class="Folded">+-- 23 lines: # trace &quot;=&gt; &quot; out &quot; (global)&quot; -------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L970" class="LineNr"> 970 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;y&quot;</span>, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
<span id="L971" class="LineNr"> 971 </span> <span class="PreProc">return</span>
<span id="L972" class="LineNr"> 972 </span> <span class="Delimiter">}</span>
@ -958,7 +958,7 @@ if ('onhashchange' in window) {
<span id="L1005" class="LineNr">1005 </span> <span class="Delimiter">{</span>
<span id="L1006" class="LineNr">1006 </span> <span class="PreProc">break-if-=</span>
<span id="L1007" class="LineNr">1007 </span> <a href='evaluate.mu.html#L1265'>cdr</a> env-head, out, trace
<span id="L1008" class="Folded">1008 </span><span class="Folded">+-- 23 lines: # trace &quot;=&gt; &quot; out &quot; (match)&quot; ----------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1008" class="Folded">1008 </span><span class="Folded">+-- 23 lines: # trace &quot;=&gt; &quot; out &quot; (match)&quot; --------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1031" class="LineNr">1031 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L1032" class="LineNr">1032 </span> <span class="PreProc">return</span>
<span id="L1033" class="LineNr">1033 </span> <span class="Delimiter">}</span>
@ -968,7 +968,7 @@ if ('onhashchange' in window) {
<span id="L1037" class="LineNr">1037 </span> <a href='evaluate.mu.html#L1265'>cdr</a> env, env-tail-ah, trace
<span id="L1038" class="LineNr">1038 </span> <a href='evaluate.mu.html#L900'>lookup-symbol</a> sym, out, *env-tail-ah, globals, trace, inner-screen-var, inner-keyboard-var
<span id="L1039" class="LineNr">1039 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L1040" class="Folded">1040 </span><span class="Folded">+-- 23 lines: # trace &quot;=&gt; &quot; out &quot; (recurse)&quot; --------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1040" class="Folded">1040 </span><span class="Folded">+-- 23 lines: # trace &quot;=&gt; &quot; out &quot; (recurse)&quot; ------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1063" class="LineNr">1063 </span><span class="Delimiter">}</span>
<span id="L1064" class="LineNr">1064 </span>
<span id="L1065" class="LineNr">1065 </span><span class="PreProc">fn</span> <span class="muTest"><a href='evaluate.mu.html#L1065'>test-lookup-symbol-in-env</a></span> <span class="Delimiter">{</span>
@ -1071,7 +1071,7 @@ if ('onhashchange' in window) {
<span id="L1162" class="LineNr">1162 </span> <a href='global.mu.html#L504'>mutate-binding-in-globals</a> name, val, globals, trace
<span id="L1163" class="LineNr">1163 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;x&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
<span id="L1164" class="LineNr">1164 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L1165" class="Folded">1165 </span><span class="Folded">+-- 19 lines: # trace &quot;=&gt; &quot; val &quot; (global)&quot; ---------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1165" class="Folded">1165 </span><span class="Folded">+-- 19 lines: # trace &quot;=&gt; &quot; val &quot; (global)&quot; -------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L1184" class="LineNr">1184 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;y&quot;</span>, <span class="Constant">3</span>/fg, <span class="Constant">0</span>/bg
<span id="L1185" class="LineNr">1185 </span> <span class="PreProc">return</span>
<span id="L1186" class="LineNr">1186 </span> <span class="Delimiter">}</span>

8
html/shell/infix.mu.html generated
View File

@ -80,7 +80,7 @@ if ('onhashchange' in window) {
<span id="L14" class="LineNr"> 14 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='infix.mu.html#L14'>transform-infix-2</a></span> _x-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), trace: (addr trace), at-head-of-list?: boolean <span class="Delimiter">{</span>
<span id="L15" class="LineNr"> 15 </span> <span class="PreProc">var</span> x-ah/<span class="muRegEdi">edi</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> copy _x-ah
<span id="L16" class="LineNr"> 16 </span> <span class="PreProc">var</span> x/eax: (addr <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> <a href='../120allocate.subx.html#L235'>lookup</a> *x-ah
<span id="L17" class="Folded"> 17 </span><span class="Folded">+-- 14 lines: # trace x-ah --------------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L17" class="Folded"> 17 </span><span class="Folded">+-- 14 lines: # trace x-ah ------------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L31" class="LineNr"> 31 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L32" class="LineNr"> 32 </span><span class="CommentedCode">#? {</span>
<span id="L33" class="LineNr"> 33 </span><span class="CommentedCode">#? var foo/eax: int &lt;- copy x</span>
@ -118,7 +118,7 @@ if ('onhashchange' in window) {
<span id="L65" class="LineNr"> 65 </span> compare *x-type, <span class="Constant">0</span>/pair
<span id="L66" class="LineNr"> 66 </span> <span class="PreProc">break-if-=</span>
<span id="L67" class="LineNr"> 67 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L68" class="Folded"> 68 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; x-ah --------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L68" class="Folded"> 68 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; x-ah ------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L83" class="LineNr"> 83 </span><span class="CommentedCode">#? draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, &quot;^&quot;, 4/fg 0/bg</span>
<span id="L84" class="LineNr"> 84 </span> <span class="PreProc">return</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">}</span>
@ -139,7 +139,7 @@ if ('onhashchange' in window) {
<span id="L100" class="LineNr">100 </span> <span class="PreProc">break-if-=</span>
<span id="L101" class="LineNr">101 </span> copy-object first-ah, x-ah
<span id="L102" class="LineNr">102 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L103" class="Folded">103 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; x-ah --------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L103" class="Folded">103 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; x-ah ------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L118" class="LineNr">118 </span> <span class="PreProc">return</span>
<span id="L119" class="LineNr">119 </span> <span class="Delimiter">}</span>
<span id="L120" class="LineNr">120 </span><span class="CommentedCode">#? draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, &quot;c&quot;, 4/fg 0/bg</span>
@ -278,7 +278,7 @@ if ('onhashchange' in window) {
<span id="L253" class="LineNr">253 </span> <a href='infix.mu.html#L14'>transform-infix-2</a> right-ah, trace, right-at-head-of-list?
<span id="L254" class="LineNr">254 </span><span class="CommentedCode">#? draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, &quot;z&quot;, 1/fg 0/bg</span>
<span id="L255" class="LineNr">255 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L256" class="Folded">256 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; x-ah --------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L256" class="Folded">256 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; x-ah ------------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L271" class="LineNr">271 </span><span class="Delimiter">}</span>
<span id="L272" class="LineNr">272 </span>
<span id="L273" class="LineNr">273 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='infix.mu.html#L273'>not-null-not-nil-pair?</a></span> _x: (addr <a href='cell.mu.html#L1'>cell</a>)<span class="PreProc"> -&gt; </span>_/eax: boolean <span class="Delimiter">{</span>

16
html/shell/macroexpand.mu.html generated
View File

@ -65,7 +65,7 @@ if ('onhashchange' in window) {
<a href='https://github.com/akkartik/mu/blob/main/shell/macroexpand.mu'>https://github.com/akkartik/mu/blob/main/shell/macroexpand.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='macroexpand.mu.html#L1'>macroexpand</a></span> expr-ah: (addr handle <a href='cell.mu.html#L1'>cell</a>), globals: (addr <a href='global.mu.html#L1'>global-table</a>), trace: (addr trace) <span class="Delimiter">{</span>
<span id="L2" class="Folded"> 2 </span><span class="Folded">+-- 15 lines: # trace &quot;macroexpand &quot; expr-ah --------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L2" class="Folded"> 2 </span><span class="Folded">+-- 15 lines: # trace &quot;macroexpand &quot; expr-ah ------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L17" class="LineNr"> 17 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L18" class="LineNr"> 18 </span><span class="CommentedCode">#? clear-screen 0</span>
<span id="L19" class="LineNr"> 19 </span><span class="CommentedCode">#? set-cursor-position 0, 0x20 0x20</span>
@ -79,7 +79,7 @@ if ('onhashchange' in window) {
<span id="L27" class="LineNr"> 27 </span> <span class="PreProc">loop-if-!=</span>
<span id="L28" class="LineNr"> 28 </span> <span class="Delimiter">}</span>
<span id="L29" class="LineNr"> 29 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L30" class="Folded"> 30 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; expr-ah -----------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L30" class="Folded"> 30 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; expr-ah ---------------------------------------------------------------------------------------------------------------------------------------------------</span>
<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="muComment"># return true if we found any macros</span>
@ -90,7 +90,7 @@ if ('onhashchange' in window) {
<span id="L52" class="LineNr"> 52 </span> <span class="PreProc">break-if-!=</span>
<span id="L53" class="LineNr"> 53 </span> <a href='../317abort.subx.html#L5'>abort</a> <span class="Constant">&quot;macroexpand-iter: NULL expr-ah&quot;</span>
<span id="L54" class="LineNr"> 54 </span> <span class="Delimiter">}</span>
<span id="L55" class="Folded"> 55 </span><span class="Folded">+-- 15 lines: # trace &quot;macroexpand-iter &quot; expr ------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L55" class="Folded"> 55 </span><span class="Folded">+-- 15 lines: # trace &quot;macroexpand-iter &quot; expr ----------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L70" class="LineNr"> 70 </span> <a href='trace.mu.html#L239'>trace-lower</a> trace
<span id="L71" class="LineNr"> 71 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;a&quot;</span>, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
<span id="L72" class="LineNr"> 72 </span> <span class="muComment"># if expr is a non-pair, return</span>
@ -185,7 +185,7 @@ if ('onhashchange' in window) {
<span id="L161" class="LineNr">161 </span> <span class="PreProc">loop</span>
<span id="L162" class="LineNr">162 </span> <span class="Delimiter">}</span>
<span id="L163" class="LineNr">163 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L164" class="Folded">164 </span><span class="Folded">+-- 15 lines: # trace &quot;fn=&gt; &quot; _expr-ah --------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L164" class="Folded">164 </span><span class="Folded">+-- 15 lines: # trace &quot;fn=&gt; &quot; _expr-ah ------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L179" class="LineNr">179 </span> <span class="PreProc">return</span> result
<span id="L180" class="LineNr">180 </span> <span class="Delimiter">}</span>
<span id="L181" class="LineNr">181 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;g&quot;</span>, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
@ -248,7 +248,7 @@ if ('onhashchange' in window) {
<span id="L238" class="LineNr">238 </span> <span class="PreProc">var</span> val-ah/<span class="muRegEdx">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get rest, left
<span id="L239" class="LineNr">239 </span> <span class="PreProc">var</span> macro-found?/eax: boolean <span class="Special">&lt;-</span> <a href='macroexpand.mu.html#L48'>macroexpand-iter</a> val-ah, globals, trace
<span id="L240" class="LineNr">240 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L241" class="Folded">241 </span><span class="Folded">+-- 15 lines: # trace &quot;define=&gt; &quot; _expr-ah ----------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L241" class="Folded">241 </span><span class="Folded">+-- 15 lines: # trace &quot;define=&gt; &quot; _expr-ah --------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L256" class="LineNr">256 </span> <span class="PreProc">return</span> macro-found?
<span id="L257" class="LineNr">257 </span> <span class="Delimiter">}</span>
<span id="L258" class="LineNr">258 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;j&quot;</span>, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
@ -265,7 +265,7 @@ if ('onhashchange' in window) {
<span id="L269" class="LineNr">269 </span> <span class="PreProc">var</span> val-ah/<span class="muRegEdx">edx</span>: (addr handle <a href='cell.mu.html#L1'>cell</a>) <span class="Special">&lt;-</span> get rest, left
<span id="L270" class="LineNr">270 </span> <span class="PreProc">var</span> macro-found?/eax: boolean <span class="Special">&lt;-</span> <a href='macroexpand.mu.html#L48'>macroexpand-iter</a> val-ah, globals, trace
<span id="L271" class="LineNr">271 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L272" class="Folded">272 </span><span class="Folded">+-- 15 lines: # trace &quot;set=&gt; &quot; _expr-ah -------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L272" class="Folded">272 </span><span class="Folded">+-- 15 lines: # trace &quot;set=&gt; &quot; _expr-ah -----------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L287" class="LineNr">287 </span> <span class="PreProc">return</span> macro-found?
<span id="L288" class="LineNr">288 </span> <span class="Delimiter">}</span>
<span id="L289" class="LineNr">289 </span> <a href='../315stack-debug.subx.html#L56'>debug-print</a> <span class="Constant">&quot;k&quot;</span>, <span class="Constant">7</span>/fg, <span class="Constant">0</span>/bg
@ -301,7 +301,7 @@ if ('onhashchange' in window) {
<span id="L319" class="LineNr">319 </span><span class="CommentedCode">#? turn-on-debug-print</span>
<span id="L320" class="LineNr">320 </span> <a href='evaluate.mu.html#L681'>apply</a> macro-definition-ah, rest-ah, expr-ah, globals, trace, <span class="Constant">0</span>/no-screen, <span class="Constant">0</span>/no-keyboard, <span class="Constant">0</span>/definitions-created, <span class="Constant">0</span>/call-number
<span id="L321" class="LineNr">321 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L322" class="Folded">322 </span><span class="Folded">+-- 15 lines: # trace &quot;1=&gt; &quot; _expr-ah ---------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L322" class="Folded">322 </span><span class="Folded">+-- 15 lines: # trace &quot;1=&gt; &quot; _expr-ah -------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L337" class="LineNr">337 </span> <span class="PreProc">return</span> <span class="Constant">1</span>/true
<span id="L338" class="LineNr">338 </span> <span class="Delimiter">}</span>
<span id="L339" class="LineNr">339 </span> <span class="muComment"># no macro found; process any macros within args</span>
@ -333,7 +333,7 @@ if ('onhashchange' in window) {
<span id="L365" class="LineNr">365 </span> <span class="PreProc">loop</span>
<span id="L366" class="LineNr">366 </span> <span class="Delimiter">}</span>
<span id="L367" class="LineNr">367 </span> <a href='trace.mu.html#L250'>trace-higher</a> trace
<span id="L368" class="Folded">368 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; _expr-ah ----------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L368" class="Folded">368 </span><span class="Folded">+-- 15 lines: # trace &quot;=&gt; &quot; _expr-ah --------------------------------------------------------------------------------------------------------------------------------------------------</span>
<span id="L383" class="LineNr">383 </span> <span class="PreProc">return</span> result
<span id="L384" class="LineNr">384 </span><span class="Delimiter">}</span>
<span id="L385" class="LineNr">385 </span>