1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
|
<!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 - life.mu</title>
<meta name="Generator" content="Vim/8.1">
<meta name="plugin-version" content="vim8.1_v1">
<meta name="syntax" content="none">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal-dark">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #a8a8a8; }
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #a8a8a8; }
a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.LineNr { }
.Delimiter { color: #c000c0; }
.CommentedCode { color: #8a8a8a; }
.muRegEdx { color: #878700; }
.muRegEbx { color: #8787af; }
.muRegEsi { color: #87d787; }
.muRegEdi { color: #87ffd7; }
.Constant { color: #008787; }
.Special { color: #ff6060; }
.PreProc { color: #c000c0; }
.muFunction { color: #af5f00; text-decoration: underline; }
.muComment { color: #005faf; }
.muRegEax { color: #875f00; }
.muRegEcx { color: #af875f; }
-->
</style>
<script type='text/javascript'>
<!--
/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
var lineNum;
lineNum = window.location.hash;
lineNum = lineNum.substr(1); /* strip off '#' */
if (lineNum.indexOf('L') == -1) {
lineNum = 'L'+lineNum;
}
var lineElem = document.getElementById(lineNum);
/* Always jump to new location even if the line was hidden inside a fold, or
* we corrected the raw number to a line ID.
*/
if (lineElem) {
lineElem.scrollIntoView(true);
}
return true;
}
if ('onhashchange' in window) {
window.onhashchange = JumpToLine;
}
-->
</script>
</head>
<body onload='JumpToLine();'>
<a href='https://github.com/akkartik/mu/blob/main/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>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|