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<a href='https://github.com/akkartik/mu/blob/main/life.mu'>https://github.com/akkartik/mu/blob/main/life.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Conway's Game of Life</span>
<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span>
<span id="L3" class="LineNr"> 3 </span><span class="muComment"># To build:</span>
<span id="L4" class="LineNr"> 4 </span><span class="muComment"># $ ./translate life.mu</span>
<span id="L5" class="LineNr"> 5 </span><span class="muComment"># To run:</span>
<span id="L6" class="LineNr"> 6 </span><span class="muComment"># $ qemu-system-i386 code.img</span>
<span id="L7" class="LineNr"> 7 </span>
<span id="L8" class="LineNr"> 8 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L8'>state</a></span> _grid: (addr array boolean), x: int, y: int<span class="PreProc"> -> </span>_/<span class="muRegEax">eax</span>: boolean <span class="Delimiter">{</span>
<span id="L9" class="LineNr"> 9 </span> <span class="muComment"># clip at the edge</span>
<span id="L10" class="LineNr"> 10 </span> compare x, <span class="Constant">0</span>
<span id="L11" class="LineNr"> 11 </span> <span class="Delimiter">{</span>
<span id="L12" class="LineNr"> 12 </span> <span class="PreProc">break-if->=</span>
<span id="L13" class="LineNr"> 13 </span> <span class="PreProc">return</span> <span class="Constant">0</span>/false
<span id="L14" class="LineNr"> 14 </span> <span class="Delimiter">}</span>
<span id="L15" class="LineNr"> 15 </span> compare y, <span class="Constant">0</span>
<span id="L16" class="LineNr"> 16 </span> <span class="Delimiter">{</span>
<span id="L17" class="LineNr"> 17 </span> <span class="PreProc">break-if->=</span>
<span id="L18" class="LineNr"> 18 </span> <span class="PreProc">return</span> <span class="Constant">0</span>/false
<span id="L19" class="LineNr"> 19 </span> <span class="Delimiter">}</span>
<span id="L20" class="LineNr"> 20 </span> compare x, <span class="Constant">0x100</span>/width
<span id="L21" class="LineNr"> 21 </span> <span class="Delimiter">{</span>
<span id="L22" class="LineNr"> 22 </span> <span class="PreProc">break-if-<</span>
<span id="L23" class="LineNr"> 23 </span> <span class="PreProc">return</span> <span class="Constant">0</span>/false
<span id="L24" class="LineNr"> 24 </span> <span class="Delimiter">}</span>
<span id="L25" class="LineNr"> 25 </span> compare y, <span class="Constant">0xc0</span>/height
<span id="L26" class="LineNr"> 26 </span> <span class="Delimiter">{</span>
<span id="L27" class="LineNr"> 27 </span> <span class="PreProc">break-if-<</span>
<span id="L28" class="LineNr"> 28 </span> <span class="PreProc">return</span> <span class="Constant">0</span>/false
<span id="L29" class="LineNr"> 29 </span> <span class="Delimiter">}</span>
<span id="L30" class="LineNr"> 30 </span> <span class="PreProc">var</span> idx/<span class="muRegEax">eax</span>: int <span class="Special"><-</span> copy y
<span id="L31" class="LineNr"> 31 </span> idx <span class="Special"><-</span> shift-left <span class="Constant">8</span>/log2width
<span id="L32" class="LineNr"> 32 </span> idx <span class="Special"><-</span> add x
<span id="L33" class="LineNr"> 33 </span> <span class="PreProc">var</span> grid/<span class="muRegEsi">esi</span>: (addr array boolean) <span class="Special"><-</span> copy _grid
<span id="L34" class="LineNr"> 34 </span> <span class="PreProc">var</span> result/<span class="muRegEax">eax</span>: (addr boolean) <span class="Special"><-</span> index grid, idx
<span id="L35" class="LineNr"> 35 </span> <span class="PreProc">return</span> *result
<span id="L36" class="LineNr"> 36 </span><span class="Delimiter">}</span>
<span id="L37" class="LineNr"> 37 </span>
<span id="L38" class="LineNr"> 38 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L38'>set-state</a></span> _grid: (addr array boolean), x: int, y: int, val: boolean <span class="Delimiter">{</span>
<span id="L39" class="LineNr"> 39 </span> <span class="muComment"># don't bother checking bounds</span>
<span id="L40" class="LineNr"> 40 </span> <span class="PreProc">var</span> idx/<span class="muRegEax">eax</span>: int <span class="Special"><-</span> copy y
<span id="L41" class="LineNr"> 41 </span> idx <span class="Special"><-</span> shift-left <span class="Constant">8</span>/log2width
<span id="L42" class="LineNr"> 42 </span> idx <span class="Special"><-</span> add x
<span id="L43" class="LineNr"> 43 </span> <span class="PreProc">var</span> grid/<span class="muRegEsi">esi</span>: (addr array boolean) <span class="Special"><-</span> copy _grid
<span id="L44" class="LineNr"> 44 </span> <span class="PreProc">var</span> result/<span class="muRegEax">eax</span>: (addr boolean) <span class="Special"><-</span> index grid, idx
<span id="L45" class="LineNr"> 45 </span> <span class="PreProc">var</span> src/<span class="muRegEcx">ecx</span>: boolean <span class="Special"><-</span> copy val
<span id="L46" class="LineNr"> 46 </span> copy-to *result, src
<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span>
<span id="L48" class="LineNr"> 48 </span>
<span id="L49" class="LineNr"> 49 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L49'>num-live-neighbors</a></span> grid: (addr array boolean), x: int, y: int<span class="PreProc"> -> </span>_/<span class="muRegEax">eax</span>: int <span class="Delimiter">{</span>
<span id="L50" class="LineNr"> 50 </span> <span class="PreProc">var</span> result/<span class="muRegEdi">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L51" class="LineNr"> 51 </span> <span class="muComment"># row above: zig</span>
<span id="L52" class="LineNr"> 52 </span> decrement y
<span id="L53" class="LineNr"> 53 </span> decrement x
<span id="L54" class="LineNr"> 54 </span> <span class="PreProc">var</span> s/<span class="muRegEax">eax</span>: boolean <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">{</span>
<span id="L56" class="LineNr"> 56 </span> compare s, <span class="Constant">0</span>/false
<span id="L57" class="LineNr"> 57 </span> <span class="PreProc">break-if-=</span>
<span id="L58" class="LineNr"> 58 </span> result <span class="Special"><-</span> increment
<span id="L59" class="LineNr"> 59 </span> <span class="Delimiter">}</span>
<span id="L60" class="LineNr"> 60 </span> increment x
<span id="L61" class="LineNr"> 61 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L62" class="LineNr"> 62 </span> <span class="Delimiter">{</span>
<span id="L63" class="LineNr"> 63 </span> compare s, <span class="Constant">0</span>/false
<span id="L64" class="LineNr"> 64 </span> <span class="PreProc">break-if-=</span>
<span id="L65" class="LineNr"> 65 </span> result <span class="Special"><-</span> increment
<span id="L66" class="LineNr"> 66 </span> <span class="Delimiter">}</span>
<span id="L67" class="LineNr"> 67 </span> increment x
<span id="L68" class="LineNr"> 68 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L69" class="LineNr"> 69 </span> <span class="Delimiter">{</span>
<span id="L70" class="LineNr"> 70 </span> compare s, <span class="Constant">0</span>/false
<span id="L71" class="LineNr"> 71 </span> <span class="PreProc">break-if-=</span>
<span id="L72" class="LineNr"> 72 </span> result <span class="Special"><-</span> increment
<span id="L73" class="LineNr"> 73 </span> <span class="Delimiter">}</span>
<span id="L74" class="LineNr"> 74 </span> <span class="muComment"># curr row: zag</span>
<span id="L75" class="LineNr"> 75 </span> increment y
<span id="L76" class="LineNr"> 76 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L77" class="LineNr"> 77 </span> <span class="Delimiter">{</span>
<span id="L78" class="LineNr"> 78 </span> compare s, <span class="Constant">0</span>/false
<span id="L79" class="LineNr"> 79 </span> <span class="PreProc">break-if-=</span>
<span id="L80" class="LineNr"> 80 </span> result <span class="Special"><-</span> increment
<span id="L81" class="LineNr"> 81 </span> <span class="Delimiter">}</span>
<span id="L82" class="LineNr"> 82 </span> subtract-from x, <span class="Constant">2</span>
<span id="L83" class="LineNr"> 83 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">{</span>
<span id="L85" class="LineNr"> 85 </span> compare s, <span class="Constant">0</span>/false
<span id="L86" class="LineNr"> 86 </span> <span class="PreProc">break-if-=</span>
<span id="L87" class="LineNr"> 87 </span> result <span class="Special"><-</span> increment
<span id="L88" class="LineNr"> 88 </span> <span class="Delimiter">}</span>
<span id="L89" class="LineNr"> 89 </span> <span class="muComment"># row below: zig</span>
<span id="L90" class="LineNr"> 90 </span> increment y
<span id="L91" class="LineNr"> 91 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L92" class="LineNr"> 92 </span> <span class="Delimiter">{</span>
<span id="L93" class="LineNr"> 93 </span> compare s, <span class="Constant">0</span>/false
<span id="L94" class="LineNr"> 94 </span> <span class="PreProc">break-if-=</span>
<span id="L95" class="LineNr"> 95 </span> result <span class="Special"><-</span> increment
<span id="L96" class="LineNr"> 96 </span> <span class="Delimiter">}</span>
<span id="L97" class="LineNr"> 97 </span> increment x
<span id="L98" class="LineNr"> 98 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">{</span>
<span id="L100" class="LineNr">100 </span> compare s, <span class="Constant">0</span>/false
<span id="L101" class="LineNr">101 </span> <span class="PreProc">break-if-=</span>
<span id="L102" class="LineNr">102 </span> result <span class="Special"><-</span> increment
<span id="L103" class="LineNr">103 </span> <span class="Delimiter">}</span>
<span id="L104" class="LineNr">104 </span> increment x
<span id="L105" class="LineNr">105 </span> s <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L106" class="LineNr">106 </span> <span class="Delimiter">{</span>
<span id="L107" class="LineNr">107 </span> compare s, <span class="Constant">0</span>/false
<span id="L108" class="LineNr">108 </span> <span class="PreProc">break-if-=</span>
<span id="L109" class="LineNr">109 </span> result <span class="Special"><-</span> increment
<span id="L110" class="LineNr">110 </span> <span class="Delimiter">}</span>
<span id="L111" class="LineNr">111 </span> <span class="PreProc">return</span> result
<span id="L112" class="LineNr">112 </span><span class="Delimiter">}</span>
<span id="L113" class="LineNr">113 </span>
<span id="L114" class="LineNr">114 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L114'>step</a></span> old-grid: (addr array boolean), new-grid: (addr array boolean) <span class="Delimiter">{</span>
<span id="L115" class="LineNr">115 </span> <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L116" class="LineNr">116 </span> <span class="Delimiter">{</span>
<span id="L117" class="LineNr">117 </span> compare y, <span class="Constant">0xc0</span>/height
<span id="L118" class="LineNr">118 </span> <span class="PreProc">break-if->=</span>
<span id="L119" class="LineNr">119 </span> <span class="PreProc">var</span> x/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L120" class="LineNr">120 </span> <span class="Delimiter">{</span>
<span id="L121" class="LineNr">121 </span> compare x, <span class="Constant">0x100</span>/width
<span id="L122" class="LineNr">122 </span> <span class="PreProc">break-if->=</span>
<span id="L123" class="LineNr">123 </span> <span class="PreProc">var</span> n/<span class="muRegEax">eax</span>: int <span class="Special"><-</span> <a href='life.mu.html#L49'>num-live-neighbors</a> old-grid, x, y
<span id="L124" class="LineNr">124 </span> <span class="muComment"># if neighbors < 2, die of loneliness</span>
<span id="L125" class="LineNr">125 </span> <span class="Delimiter">{</span>
<span id="L126" class="LineNr">126 </span> compare n, <span class="Constant">2</span>
<span id="L127" class="LineNr">127 </span> <span class="PreProc">break-if->=</span>
<span id="L128" class="LineNr">128 </span> <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, <span class="Constant">0</span>/dead
<span id="L129" class="LineNr">129 </span> <span class="Delimiter">}</span>
<span id="L130" class="LineNr">130 </span> <span class="muComment"># if neighbors > 3, die of overcrowding</span>
<span id="L131" class="LineNr">131 </span> <span class="Delimiter">{</span>
<span id="L132" class="LineNr">132 </span> compare n, <span class="Constant">3</span>
<span id="L133" class="LineNr">133 </span> <span class="PreProc">break-if-<=</span>
<span id="L134" class="LineNr">134 </span> <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, <span class="Constant">0</span>/dead
<span id="L135" class="LineNr">135 </span> <span class="Delimiter">}</span>
<span id="L136" class="LineNr">136 </span> <span class="muComment"># if neighbors = 2, preserve state</span>
<span id="L137" class="LineNr">137 </span> <span class="Delimiter">{</span>
<span id="L138" class="LineNr">138 </span> compare n, <span class="Constant">2</span>
<span id="L139" class="LineNr">139 </span> <span class="PreProc">break-if-!=</span>
<span id="L140" class="LineNr">140 </span> <span class="PreProc">var</span> old-state/<span class="muRegEax">eax</span>: boolean <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> old-grid, x, y
<span id="L141" class="LineNr">141 </span> <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, old-state
<span id="L142" class="LineNr">142 </span> <span class="Delimiter">}</span>
<span id="L143" class="LineNr">143 </span> <span class="muComment"># if neighbors = 3, cell quickens to life</span>
<span id="L144" class="LineNr">144 </span> <span class="Delimiter">{</span>
<span id="L145" class="LineNr">145 </span> compare n, <span class="Constant">3</span>
<span id="L146" class="LineNr">146 </span> <span class="PreProc">break-if-!=</span>
<span id="L147" class="LineNr">147 </span> <a href='life.mu.html#L38'>set-state</a> new-grid, x, y, <span class="Constant">1</span>/live
<span id="L148" class="LineNr">148 </span> <span class="Delimiter">}</span>
<span id="L149" class="LineNr">149 </span> x <span class="Special"><-</span> increment
<span id="L150" class="LineNr">150 </span> <span class="PreProc">loop</span>
<span id="L151" class="LineNr">151 </span> <span class="Delimiter">}</span>
<span id="L152" class="LineNr">152 </span> y <span class="Special"><-</span> increment
<span id="L153" class="LineNr">153 </span> <span class="PreProc">loop</span>
<span id="L154" class="LineNr">154 </span> <span class="Delimiter">}</span>
<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span>
<span id="L156" class="LineNr">156 </span>
<span id="L157" class="LineNr">157 </span><span class="muComment"># color a square of size 'side' starting at x*side, y*side</span>
<span id="L158" class="LineNr">158 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L158'>render-square</a></span> _x: int, _y: int, color: int <span class="Delimiter">{</span>
<span id="L159" class="LineNr">159 </span> <span class="PreProc">var</span> y/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy _y
<span id="L160" class="LineNr">160 </span> y <span class="Special"><-</span> shift-left <span class="Constant">2</span>/log2side
<span id="L161" class="LineNr">161 </span> <span class="PreProc">var</span> side/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">1</span>
<span id="L162" class="LineNr">162 </span> side <span class="Special"><-</span> shift-left <span class="Constant">2</span>/log2side
<span id="L163" class="LineNr">163 </span> <span class="PreProc">var</span> ymax/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy y
<span id="L164" class="LineNr">164 </span> ymax <span class="Special"><-</span> add side
<span id="L165" class="LineNr">165 </span> <span class="Delimiter">{</span>
<span id="L166" class="LineNr">166 </span> compare y, ymax
<span id="L167" class="LineNr">167 </span> <span class="PreProc">break-if->=</span>
<span id="L168" class="LineNr">168 </span> <span class="Delimiter">{</span>
<span id="L169" class="LineNr">169 </span> <span class="PreProc">var</span> x/<span class="muRegEax">eax</span>: int <span class="Special"><-</span> copy _x
<span id="L170" class="LineNr">170 </span> x <span class="Special"><-</span> shift-left <span class="Constant">2</span>/log2side
<span id="L171" class="LineNr">171 </span> <span class="PreProc">var</span> xmax/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy x
<span id="L172" class="LineNr">172 </span> xmax <span class="Special"><-</span> add side
<span id="L173" class="LineNr">173 </span> <span class="Delimiter">{</span>
<span id="L174" class="LineNr">174 </span> compare x, xmax
<span id="L175" class="LineNr">175 </span> <span class="PreProc">break-if->=</span>
<span id="L176" class="LineNr">176 </span> <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, color
<span id="L177" class="LineNr">177 </span> x <span class="Special"><-</span> increment
<span id="L178" class="LineNr">178 </span> <span class="PreProc">loop</span>
<span id="L179" class="LineNr">179 </span> <span class="Delimiter">}</span>
<span id="L180" class="LineNr">180 </span> <span class="Delimiter">}</span>
<span id="L181" class="LineNr">181 </span> y <span class="Special"><-</span> increment
<span id="L182" class="LineNr">182 </span> <span class="PreProc">loop</span>
<span id="L183" class="LineNr">183 </span> <span class="Delimiter">}</span>
<span id="L184" class="LineNr">184 </span><span class="Delimiter">}</span>
<span id="L185" class="LineNr">185 </span>
<span id="L186" class="LineNr">186 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L186'>render</a></span> grid: (addr array boolean) <span class="Delimiter">{</span>
<span id="L187" class="LineNr">187 </span> <span class="PreProc">var</span> y/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L188" class="LineNr">188 </span> <span class="Delimiter">{</span>
<span id="L189" class="LineNr">189 </span> compare y, <span class="Constant">0xc0</span>/height
<span id="L190" class="LineNr">190 </span> <span class="PreProc">break-if->=</span>
<span id="L191" class="LineNr">191 </span> <span class="PreProc">var</span> x/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L192" class="LineNr">192 </span> <span class="Delimiter">{</span>
<span id="L193" class="LineNr">193 </span> compare x, <span class="Constant">0x100</span>/width
<span id="L194" class="LineNr">194 </span> <span class="PreProc">break-if->=</span>
<span id="L195" class="LineNr">195 </span> <span class="PreProc">var</span> <a href='life.mu.html#L8'>state</a>/<span class="muRegEax">eax</span>: boolean <span class="Special"><-</span> <a href='life.mu.html#L8'>state</a> grid, x, y
<span id="L196" class="LineNr">196 </span> compare <a href='life.mu.html#L8'>state</a>, <span class="Constant">0</span>/false
<span id="L197" class="LineNr">197 </span> <span class="Delimiter">{</span>
<span id="L198" class="LineNr">198 </span> <span class="PreProc">break-if-=</span>
<span id="L199" class="LineNr">199 </span> <a href='life.mu.html#L158'>render-square</a> x, y, <span class="Constant">3</span>/cyan
<span id="L200" class="LineNr">200 </span> <span class="Delimiter">}</span>
<span id="L201" class="LineNr">201 </span> compare <a href='life.mu.html#L8'>state</a>, <span class="Constant">0</span>/false
<span id="L202" class="LineNr">202 </span> <span class="Delimiter">{</span>
<span id="L203" class="LineNr">203 </span> <span class="PreProc">break-if-!=</span>
<span id="L204" class="LineNr">204 </span> <a href='life.mu.html#L158'>render-square</a> x, y, <span class="Constant">0</span>/black
<span id="L205" class="LineNr">205 </span> <span class="Delimiter">}</span>
<span id="L206" class="LineNr">206 </span> x <span class="Special"><-</span> increment
<span id="L207" class="LineNr">207 </span> <span class="PreProc">loop</span>
<span id="L208" class="LineNr">208 </span> <span class="Delimiter">}</span>
<span id="L209" class="LineNr">209 </span> y <span class="Special"><-</span> increment
<span id="L210" class="LineNr">210 </span> <span class="PreProc">loop</span>
<span id="L211" class="LineNr">211 </span> <span class="Delimiter">}</span>
<span id="L212" class="LineNr">212 </span><span class="Delimiter">}</span>
<span id="L213" class="LineNr">213 </span>
<span id="L214" class="LineNr">214 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='life.mu.html#L214'>main</a></span> <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="L215" class="LineNr">215 </span><span class="CommentedCode">#? # allocate on the stack</span>
<span id="L216" class="LineNr">216 </span><span class="CommentedCode">#? var grid1-storage: (array boolean 0xc000) # width * height</span>
<span id="L217" class="LineNr">217 </span><span class="CommentedCode">#? var grid1/esi: (addr array boolean) <- address grid1-storage</span>
<span id="L218" class="LineNr">218 </span><span class="CommentedCode">#? var grid2-storage: (array boolean 0xc000) # width * height</span>
<span id="L219" class="LineNr">219 </span><span class="CommentedCode">#? var grid2/edi: (addr array boolean) <- address grid2-storage</span>
<span id="L220" class="LineNr">220 </span> <span class="muComment"># allocate on the heap</span>
<span id="L221" class="LineNr">221 </span> <span class="PreProc">var</span> grid1-storage: (handle array boolean)
<span id="L222" class="LineNr">222 </span> <span class="PreProc">var</span> grid1-ah/<span class="muRegEax">eax</span>: (addr handle array boolean) <span class="Special"><-</span> address grid1-storage
<span id="L223" class="LineNr">223 </span> populate grid1-ah, <span class="Constant">0xc000</span> <span class="muComment"># width * height</span>
<span id="L224" class="LineNr">224 </span> <span class="PreProc">var</span> _grid1/<span class="muRegEax">eax</span>: (addr array boolean) <span class="Special"><-</span> <a href='120allocate.subx.html#L223'>lookup</a> *grid1-ah
<span id="L225" class="LineNr">225 </span> <span class="PreProc">var</span> grid1/<span class="muRegEsi">esi</span>: (addr array boolean) <span class="Special"><-</span> copy _grid1
<span id="L226" class="LineNr">226 </span> <span class="PreProc">var</span> grid2-storage: (handle array boolean)
<span id="L227" class="LineNr">227 </span> <span class="PreProc">var</span> grid2-ah/<span class="muRegEax">eax</span>: (addr handle array boolean) <span class="Special"><-</span> address grid2-storage
<span id="L228" class="LineNr">228 </span> populate grid2-ah, <span class="Constant">0xc000</span> <span class="muComment"># width * height</span>
<span id="L229" class="LineNr">229 </span> <span class="PreProc">var</span> _grid2/<span class="muRegEax">eax</span>: (addr array boolean) <span class="Special"><-</span> <a href='120allocate.subx.html#L223'>lookup</a> *grid2-ah
<span id="L230" class="LineNr">230 </span> <span class="PreProc">var</span> grid2/<span class="muRegEdi">edi</span>: (addr array boolean) <span class="Special"><-</span> copy _grid2
<span id="L231" class="LineNr">231 </span> <span class="muComment"># initialize grid1</span>
<span id="L232" class="LineNr">232 </span> <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x80</span>, <span class="Constant">0x5f</span>, <span class="Constant">1</span>/live
<span id="L233" class="LineNr">233 </span> <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x81</span>, <span class="Constant">0x5f</span>, <span class="Constant">1</span>/live
<span id="L234" class="LineNr">234 </span> <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x7f</span>, <span class="Constant">0x60</span>, <span class="Constant">1</span>/live
<span id="L235" class="LineNr">235 </span> <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x80</span>, <span class="Constant">0x60</span>, <span class="Constant">1</span>/live
<span id="L236" class="LineNr">236 </span> <a href='life.mu.html#L38'>set-state</a> grid1, <span class="Constant">0x80</span>, <span class="Constant">0x61</span>, <span class="Constant">1</span>/live
<span id="L237" class="LineNr">237 </span> <span class="muComment"># render grid1</span>
<span id="L238" class="LineNr">238 </span> <a href='life.mu.html#L186'>render</a> grid1
<span id="L239" class="LineNr">239 </span> <span class="Delimiter">{</span>
<span id="L240" class="LineNr">240 </span> <span class="PreProc">var</span> key/<span class="muRegEax">eax</span>: byte <span class="Special"><-</span> <a href='102keyboard.subx.html#L21'>read-key</a> keyboard
<span id="L241" class="LineNr">241 </span> compare key, <span class="Constant">0</span>
<span id="L242" class="LineNr">242 </span><span class="CommentedCode">#? loop-if-= # press key to step</span>
<span id="L243" class="LineNr">243 </span> <span class="PreProc">break-if-!=</span> <span class="muComment"># press key to quit # comment this out to run under bochs; I'm not sure why there's a newline in the keyboard buffer</span>
<span id="L244" class="LineNr">244 </span> <span class="muComment"># iter: grid1 -> grid2</span>
<span id="L245" class="LineNr">245 </span> <a href='life.mu.html#L114'>step</a> grid1, grid2
<span id="L246" class="LineNr">246 </span> <a href='life.mu.html#L186'>render</a> grid2
<span id="L247" class="LineNr">247 </span> <span class="muComment"># iter: grid2 -> grid1</span>
<span id="L248" class="LineNr">248 </span> <a href='life.mu.html#L114'>step</a> grid2, grid1
<span id="L249" class="LineNr">249 </span> <a href='life.mu.html#L186'>render</a> grid1
<span id="L250" class="LineNr">250 </span> <span class="PreProc">loop</span>
<span id="L251" class="LineNr">251 </span> <span class="Delimiter">}</span>
<span id="L252" class="LineNr">252 </span><span class="Delimiter">}</span>
</pre>
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