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
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
|
<!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/tile/environment.mu</title>
<meta name="Generator" content="Vim/8.1">
<meta name="plugin-version" content="vim8.1_v1">
<meta name="syntax" content="none">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal-light">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.muComment { color: #005faf; }
.LineNr { }
.SpecialChar { color: #d70000; }
.Delimiter { color: #c000c0; }
.muFunction { color: #af5f00; text-decoration: underline; }
.Constant { color: #008787; }
.PreProc { color: #c000c0; }
-->
</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/master/apps/tile/environment.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/environment.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="PreProc">type</span> <a href='environment.mu.html#L1'>environment</a> <span class="Delimiter">{</span>
<span id="L2" class="LineNr"> 2 </span> <a href='../../405screen.mu.html#L9'>screen</a>: (handle <a href='../../405screen.mu.html#L9'>screen</a>)
<span id="L3" class="LineNr"> 3 </span> program: (handle program)
<span id="L4" class="LineNr"> 4 </span> cursor-word: (handle word)
<span id="L5" class="LineNr"> 5 </span> nrows: int
<span id="L6" class="LineNr"> 6 </span> ncols: int
<span id="L7" class="LineNr"> 7 </span> code-separator-col: int
<span id="L8" class="LineNr"> 8 </span><span class="Delimiter">}</span>
<span id="L9" class="LineNr"> 9 </span>
<span id="L10" class="LineNr"> 10 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L10'>initialize-environment</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
<span id="L11" class="LineNr"> 11 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _env
<span id="L12" class="LineNr"> 12 </span> <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
<span id="L13" class="LineNr"> 13 </span> <a href='../../120allocate.subx.html#L66'>allocate</a> program-ah
<span id="L14" class="LineNr"> 14 </span> <span class="PreProc">var</span> program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
<span id="L15" class="LineNr"> 15 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, cursor-word
<span id="L16" class="LineNr"> 16 </span> initialize-program program, cursor-word-ah
<span id="L17" class="LineNr"> 17 </span> <span class="muComment"># initialize screen</span>
<span id="L18" class="LineNr"> 18 </span> <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L19" class="LineNr"> 19 </span> <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
<span id="L20" class="LineNr"> 20 </span> <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> copy _screen
<span id="L21" class="LineNr"> 21 </span> <span class="PreProc">var</span> nrows/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L22" class="LineNr"> 22 </span> <span class="PreProc">var</span> ncols/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L23" class="LineNr"> 23 </span> nrows, ncols <span class="SpecialChar"><-</span> <a href='../../405screen.mu.html#L60'>screen-size</a> <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L24" class="LineNr"> 24 </span> <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, nrows
<span id="L25" class="LineNr"> 25 </span> copy-to *dest, nrows
<span id="L26" class="LineNr"> 26 </span> dest <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, ncols
<span id="L27" class="LineNr"> 27 </span> copy-to *dest, ncols
<span id="L28" class="LineNr"> 28 </span> <span class="PreProc">var</span> repl-col/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy ncols
<span id="L29" class="LineNr"> 29 </span> repl-col <span class="SpecialChar"><-</span> shift-right <span class="Constant">1</span>
<span id="L30" class="LineNr"> 30 </span> dest <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
<span id="L31" class="LineNr"> 31 </span> copy-to *dest, repl-col
<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span>
<span id="L33" class="LineNr"> 33 </span>
<span id="L34" class="LineNr"> 34 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L34'>draw-screen</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
<span id="L35" class="LineNr"> 35 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _env
<span id="L36" class="LineNr"> 36 </span> <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L37" class="LineNr"> 37 </span> <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
<span id="L38" class="LineNr"> 38 </span> <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> copy _screen
<span id="L39" class="LineNr"> 39 </span> <span class="PreProc">var</span> dest/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
<span id="L40" class="LineNr"> 40 </span> <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy *dest
<span id="L41" class="LineNr"> 41 </span> <a href='environment.mu.html#L400'>clear-canvas</a> env
<span id="L42" class="LineNr"> 42 </span> tmp <span class="SpecialChar"><-</span> add <span class="Constant">2</span> <span class="muComment"># repl-margin-left</span>
<span id="L43" class="LineNr"> 43 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>, tmp <span class="muComment"># input-row</span>
<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">}</span>
<span id="L45" class="LineNr"> 45 </span>
<span id="L46" class="LineNr"> 46 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L46'>initialize-environment-with-fake-screen</a></span> _self: (addr <a href='environment.mu.html#L1'>environment</a>), nrows: int, ncols: int <span class="Delimiter">{</span>
<span id="L47" class="LineNr"> 47 </span> <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _self
<span id="L48" class="LineNr"> 48 </span> <span class="PreProc">var</span> screen-ah/<span class="Constant">eax</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L49" class="LineNr"> 49 </span> <a href='../../120allocate.subx.html#L66'>allocate</a> screen-ah
<span id="L50" class="LineNr"> 50 </span> <span class="PreProc">var</span> screen-addr/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
<span id="L51" class="LineNr"> 51 </span> <a href='../../405screen.mu.html#L30'>initialize-screen</a> screen-addr, nrows, ncols
<span id="L52" class="LineNr"> 52 </span> <a href='environment.mu.html#L10'>initialize-environment</a> self
<span id="L53" class="LineNr"> 53 </span><span class="Delimiter">}</span>
<span id="L54" class="LineNr"> 54 </span>
<span id="L55" class="LineNr"> 55 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L55'>process</a></span> _self: (addr <a href='environment.mu.html#L1'>environment</a>), key: grapheme <span class="Delimiter">{</span>
<span id="L56" class="LineNr"> 56 </span>$process:body: <span class="Delimiter">{</span>
<span id="L57" class="LineNr"> 57 </span> <span class="PreProc">var</span> self/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _self
<span id="L58" class="LineNr"> 58 </span> compare key, <span class="Constant">0x445b1b</span> <span class="muComment"># left-arrow</span>
<span id="L59" class="LineNr"> 59 </span> <span class="Delimiter">{</span>
<span id="L60" class="LineNr"> 60 </span> <span class="PreProc">break-if-!=</span>
<span id="L61" class="LineNr"> 61 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
<span id="L62" class="LineNr"> 62 </span> <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L63" class="LineNr"> 63 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">ecx</span>: (addr word) <span class="SpecialChar"><-</span> copy _cursor-word
<span id="L64" class="LineNr"> 64 </span> <span class="muComment"># if not at start, move left within current word</span>
<span id="L65" class="LineNr"> 65 </span> <span class="PreProc">var</span> at-start?/<span class="Constant">eax</span>: boolean <span class="SpecialChar"><-</span> cursor-at-start? cursor-word
<span id="L66" class="LineNr"> 66 </span> compare at-start?, <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L67" class="LineNr"> 67 </span> <span class="Delimiter">{</span>
<span id="L68" class="LineNr"> 68 </span> <span class="PreProc">break-if-=</span>
<span id="L69" class="LineNr"> 69 </span> cursor-left cursor-word
<span id="L70" class="LineNr"> 70 </span> <span class="PreProc">break</span> $process:body
<span id="L71" class="LineNr"> 71 </span> <span class="Delimiter">}</span>
<span id="L72" class="LineNr"> 72 </span> <span class="muComment"># otherwise, move to end of prev word</span>
<span id="L73" class="LineNr"> 73 </span> <span class="PreProc">var</span> prev-word-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, prev
<span id="L74" class="LineNr"> 74 </span> <span class="PreProc">var</span> prev-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-word-ah
<span id="L75" class="LineNr"> 75 </span> <span class="Delimiter">{</span>
<span id="L76" class="LineNr"> 76 </span> compare prev-word, <span class="Constant">0</span>
<span id="L77" class="LineNr"> 77 </span> <span class="PreProc">break-if-=</span>
<span id="L78" class="LineNr"> 78 </span> copy-object prev-word-ah, cursor-word-ah
<span id="L79" class="LineNr"> 79 </span> cursor-to-end prev-word
<span id="L80" class="LineNr"> 80 </span> <span class="Delimiter">}</span>
<span id="L81" class="LineNr"> 81 </span> <span class="PreProc">break</span> $process:body
<span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span>
<span id="L83" class="LineNr"> 83 </span> compare key, <span class="Constant">0x435b1b</span> <span class="muComment"># right-arrow</span>
<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">{</span>
<span id="L85" class="LineNr"> 85 </span> <span class="PreProc">break-if-!=</span>
<span id="L86" class="LineNr"> 86 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
<span id="L87" class="LineNr"> 87 </span> <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L88" class="LineNr"> 88 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">ecx</span>: (addr word) <span class="SpecialChar"><-</span> copy _cursor-word
<span id="L89" class="LineNr"> 89 </span> <span class="muComment"># if not at end, move right within current word</span>
<span id="L90" class="LineNr"> 90 </span> <span class="PreProc">var</span> at-end?/<span class="Constant">eax</span>: boolean <span class="SpecialChar"><-</span> cursor-at-end? cursor-word
<span id="L91" class="LineNr"> 91 </span> compare at-end?, <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L92" class="LineNr"> 92 </span> <span class="Delimiter">{</span>
<span id="L93" class="LineNr"> 93 </span> <span class="PreProc">break-if-=</span>
<span id="L94" class="LineNr"> 94 </span> cursor-right cursor-word
<span id="L95" class="LineNr"> 95 </span> <span class="PreProc">break</span> $process:body
<span id="L96" class="LineNr"> 96 </span> <span class="Delimiter">}</span>
<span id="L97" class="LineNr"> 97 </span> <span class="muComment"># otherwise, move to start of next word</span>
<span id="L98" class="LineNr"> 98 </span> <span class="PreProc">var</span> next-word-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, next
<span id="L99" class="LineNr"> 99 </span> <span class="PreProc">var</span> <a href='../../127next-word.subx.html#L10'>next-word</a>/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-word-ah
<span id="L100" class="LineNr">100 </span> <span class="Delimiter">{</span>
<span id="L101" class="LineNr">101 </span> compare <a href='../../127next-word.subx.html#L10'>next-word</a>, <span class="Constant">0</span>
<span id="L102" class="LineNr">102 </span> <span class="PreProc">break-if-=</span>
<span id="L103" class="LineNr">103 </span> copy-object next-word-ah, cursor-word-ah
<span id="L104" class="LineNr">104 </span> cursor-to-start <a href='../../127next-word.subx.html#L10'>next-word</a>
<span id="L105" class="LineNr">105 </span> <span class="Delimiter">}</span>
<span id="L106" class="LineNr">106 </span> <span class="PreProc">break</span> $process:body
<span id="L107" class="LineNr">107 </span> <span class="Delimiter">}</span>
<span id="L108" class="LineNr">108 </span> compare key, <span class="Constant">0x7f</span> <span class="muComment"># del (backspace on Macs)</span>
<span id="L109" class="LineNr">109 </span> <span class="Delimiter">{</span>
<span id="L110" class="LineNr">110 </span> <span class="PreProc">break-if-!=</span>
<span id="L111" class="LineNr">111 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edi</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
<span id="L112" class="LineNr">112 </span> <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L113" class="LineNr">113 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">ecx</span>: (addr word) <span class="SpecialChar"><-</span> copy _cursor-word
<span id="L114" class="LineNr">114 </span> <span class="muComment"># if not at start of some word, delete grapheme before cursor within current word</span>
<span id="L115" class="LineNr">115 </span> <span class="PreProc">var</span> at-start?/<span class="Constant">eax</span>: boolean <span class="SpecialChar"><-</span> cursor-at-start? cursor-word
<span id="L116" class="LineNr">116 </span> compare at-start?, <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L117" class="LineNr">117 </span> <span class="Delimiter">{</span>
<span id="L118" class="LineNr">118 </span> <span class="PreProc">break-if-=</span>
<span id="L119" class="LineNr">119 </span> delete-before-cursor cursor-word
<span id="L120" class="LineNr">120 </span> <span class="PreProc">break</span> $process:body
<span id="L121" class="LineNr">121 </span> <span class="Delimiter">}</span>
<span id="L122" class="LineNr">122 </span> <span class="muComment"># otherwise delete current word and move to end of prev word</span>
<span id="L123" class="LineNr">123 </span> <span class="PreProc">var</span> prev-word-ah/<span class="Constant">esi</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, prev
<span id="L124" class="LineNr">124 </span> <span class="PreProc">var</span> prev-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-word-ah
<span id="L125" class="LineNr">125 </span> <span class="Delimiter">{</span>
<span id="L126" class="LineNr">126 </span> compare prev-word, <span class="Constant">0</span>
<span id="L127" class="LineNr">127 </span> <span class="PreProc">break-if-=</span>
<span id="L128" class="LineNr">128 </span> copy-object prev-word-ah, cursor-word-ah
<span id="L129" class="LineNr">129 </span> cursor-to-end prev-word
<span id="L130" class="LineNr">130 </span> delete-next prev-word
<span id="L131" class="LineNr">131 </span> <span class="Delimiter">}</span>
<span id="L132" class="LineNr">132 </span> <span class="PreProc">break</span> $process:body
<span id="L133" class="LineNr">133 </span> <span class="Delimiter">}</span>
<span id="L134" class="LineNr">134 </span> compare key, <span class="Constant">0x20</span> <span class="muComment"># space</span>
<span id="L135" class="LineNr">135 </span> <span class="Delimiter">{</span>
<span id="L136" class="LineNr">136 </span> <span class="PreProc">break-if-!=</span>
<span id="L137" class="LineNr">137 </span> <span class="muComment"># insert new word</span>
<span id="L138" class="LineNr">138 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
<span id="L139" class="LineNr">139 </span> append-word cursor-word-ah
<span id="L140" class="LineNr">140 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L141" class="LineNr">141 </span> <span class="PreProc">var</span> next-word-ah/<span class="Constant">ecx</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, next
<span id="L142" class="LineNr">142 </span> copy-object next-word-ah, cursor-word-ah
<span id="L143" class="LineNr">143 </span> <span class="PreProc">break</span> $process:body
<span id="L144" class="LineNr">144 </span> <span class="Delimiter">}</span>
<span id="L145" class="LineNr">145 </span> compare key, <span class="Constant">0xa</span> <span class="muComment"># enter</span>
<span id="L146" class="LineNr">146 </span> <span class="Delimiter">{</span>
<span id="L147" class="LineNr">147 </span> <span class="PreProc">break-if-!=</span>
<span id="L148" class="LineNr">148 </span> <span class="muComment"># toggle display of subsidiary stack</span>
<span id="L149" class="LineNr">149 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
<span id="L150" class="LineNr">150 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L151" class="LineNr">151 </span> <span class="PreProc">var</span> display-subsidiary-stack?/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> cursor-word, display-subsidiary-stack?
<span id="L152" class="LineNr">152 </span> <span class="PreProc">var</span> tmp/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">1</span>
<span id="L153" class="LineNr">153 </span> tmp <span class="SpecialChar"><-</span> subtract *display-subsidiary-stack?
<span id="L154" class="LineNr">154 </span> copy-to *display-subsidiary-stack?, tmp
<span id="L155" class="LineNr">155 </span> <span class="PreProc">break</span> $process:body
<span id="L156" class="LineNr">156 </span> <span class="Delimiter">}</span>
<span id="L157" class="LineNr">157 </span> <span class="muComment"># otherwise insert key within current word</span>
<span id="L158" class="LineNr">158 </span> <span class="PreProc">var</span> g/<span class="Constant">edx</span>: grapheme <span class="SpecialChar"><-</span> copy key
<span id="L159" class="LineNr">159 </span> <span class="PreProc">var</span> print?/<span class="Constant">eax</span>: boolean <span class="SpecialChar"><-</span> <a href='environment.mu.html#L418'>real-grapheme?</a> key
<span id="L160" class="LineNr">160 </span> <span class="Delimiter">{</span>
<span id="L161" class="LineNr">161 </span> compare print?, <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L162" class="LineNr">162 </span> <span class="PreProc">break-if-=</span>
<span id="L163" class="LineNr">163 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> self, cursor-word
<span id="L164" class="LineNr">164 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L165" class="LineNr">165 </span> add-grapheme-to-word cursor-word, g
<span id="L166" class="LineNr">166 </span> <span class="PreProc">break</span> $process:body
<span id="L167" class="LineNr">167 </span> <span class="Delimiter">}</span>
<span id="L168" class="LineNr">168 </span> <span class="muComment"># silently ignore other hotkeys</span>
<span id="L169" class="LineNr">169 </span><span class="Delimiter">}</span>
<span id="L170" class="LineNr">170 </span><span class="Delimiter">}</span>
<span id="L171" class="LineNr">171 </span>
<span id="L172" class="LineNr">172 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L172'>evaluate-environment</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>), stack: (addr value-stack) <span class="Delimiter">{</span>
<span id="L173" class="LineNr">173 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _env
<span id="L174" class="LineNr">174 </span> <span class="muComment"># program</span>
<span id="L175" class="LineNr">175 </span> <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
<span id="L176" class="LineNr">176 </span> <span class="PreProc">var</span> _program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
<span id="L177" class="LineNr">177 </span> <span class="PreProc">var</span> program/<span class="Constant">esi</span>: (addr program) <span class="SpecialChar"><-</span> copy _program
<span id="L178" class="LineNr">178 </span> <span class="muComment"># defs</span>
<span id="L179" class="LineNr">179 </span> <span class="PreProc">var</span> defs/<span class="Constant">edx</span>: (addr handle function) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> program, defs
<span id="L180" class="LineNr">180 </span> <span class="muComment"># line</span>
<span id="L181" class="LineNr">181 </span> <span class="PreProc">var</span> sandbox-ah/<span class="Constant">esi</span>: (addr handle sandbox) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> program, sandboxes
<span id="L182" class="LineNr">182 </span> <span class="PreProc">var</span> sandbox/<span class="Constant">eax</span>: (addr sandbox) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *sandbox-ah
<span id="L183" class="LineNr">183 </span> <span class="PreProc">var</span> line-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> sandbox, data
<span id="L184" class="LineNr">184 </span> <span class="PreProc">var</span> _line/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *line-ah
<span id="L185" class="LineNr">185 </span> <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar"><-</span> copy _line
<span id="L186" class="LineNr">186 </span> evaluate defs, <span class="Constant">0</span>, line, <span class="Constant">0</span>, stack
<span id="L187" class="LineNr">187 </span><span class="Delimiter">}</span>
<span id="L188" class="LineNr">188 </span>
<span id="L189" class="LineNr">189 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L189'>render</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
<span id="L190" class="LineNr">190 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _env
<span id="L191" class="LineNr">191 </span> <a href='environment.mu.html#L400'>clear-canvas</a> env
<span id="L192" class="LineNr">192 </span> <span class="PreProc">var</span> screen-ah/<span class="Constant">edi</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L193" class="LineNr">193 </span> <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
<span id="L194" class="LineNr">194 </span> <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> copy _screen
<span id="L195" class="LineNr">195 </span> <span class="PreProc">var</span> _repl-col/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
<span id="L196" class="LineNr">196 </span> <span class="PreProc">var</span> repl-col/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy *_repl-col
<span id="L197" class="LineNr">197 </span> repl-col <span class="SpecialChar"><-</span> add <span class="Constant">2</span> <span class="muComment"># repl-margin-left</span>
<span id="L198" class="LineNr">198 </span> <span class="muComment"># cursor-word</span>
<span id="L199" class="LineNr">199 </span> <span class="PreProc">var</span> cursor-word-ah/<span class="Constant">ebx</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, cursor-word
<span id="L200" class="LineNr">200 </span> <span class="PreProc">var</span> _cursor-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *cursor-word-ah
<span id="L201" class="LineNr">201 </span> <span class="PreProc">var</span> cursor-word/<span class="Constant">ebx</span>: (addr word) <span class="SpecialChar"><-</span> copy _cursor-word
<span id="L202" class="LineNr">202 </span> <span class="muComment"># program</span>
<span id="L203" class="LineNr">203 </span> <span class="PreProc">var</span> program-ah/<span class="Constant">eax</span>: (addr handle program) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, program
<span id="L204" class="LineNr">204 </span> <span class="PreProc">var</span> _program/<span class="Constant">eax</span>: (addr program) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *program-ah
<span id="L205" class="LineNr">205 </span> <span class="PreProc">var</span> program/<span class="Constant">esi</span>: (addr program) <span class="SpecialChar"><-</span> copy _program
<span id="L206" class="LineNr">206 </span> <span class="muComment"># defs</span>
<span id="L207" class="LineNr">207 </span> <span class="PreProc">var</span> defs/<span class="Constant">edx</span>: (addr handle function) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> program, defs
<span id="L208" class="LineNr">208 </span> <span class="muComment"># line</span>
<span id="L209" class="LineNr">209 </span> <span class="PreProc">var</span> sandbox-ah/<span class="Constant">esi</span>: (addr handle sandbox) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> program, sandboxes
<span id="L210" class="LineNr">210 </span> <span class="PreProc">var</span> sandbox/<span class="Constant">eax</span>: (addr sandbox) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *sandbox-ah
<span id="L211" class="LineNr">211 </span> <span class="PreProc">var</span> line-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> sandbox, data
<span id="L212" class="LineNr">212 </span> <span class="PreProc">var</span> _line/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *line-ah
<span id="L213" class="LineNr">213 </span> <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar"><-</span> copy _line
<span id="L214" class="LineNr">214 </span> <span class="muComment"># cursor-col</span>
<span id="L215" class="LineNr">215 </span> <span class="PreProc">var</span> cursor-col: int
<span id="L216" class="LineNr">216 </span> <span class="PreProc">var</span> cursor-col-a/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar"><-</span> address cursor-col
<span id="L217" class="LineNr">217 </span> <span class="muComment">#</span>
<span id="L218" class="LineNr">218 </span> <span class="PreProc">var</span> dummy/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> <a href='environment.mu.html#L222'>render-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, defs, <span class="Constant">0</span>, line, <span class="Constant">3</span>, repl-col, cursor-word, cursor-col-a <span class="muComment"># input-row=3</span>
<span id="L219" class="LineNr">219 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>, cursor-col <span class="muComment"># input-row</span>
<span id="L220" class="LineNr">220 </span><span class="Delimiter">}</span>
<span id="L221" class="LineNr">221 </span>
<span id="L222" class="LineNr">222 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L222'>render-line</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), defs: (addr handle function), bindings: (addr table), _line: (addr line), top-row: int, left-col: int, cursor-word: (addr word), cursor-col-a: (addr int)<span class="PreProc"> -> </span>right-col/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
<span id="L223" class="LineNr">223 </span> <span class="muComment"># curr-word</span>
<span id="L224" class="LineNr">224 </span> <span class="PreProc">var</span> line/<span class="Constant">esi</span>: (addr line) <span class="SpecialChar"><-</span> copy _line
<span id="L225" class="LineNr">225 </span> <span class="PreProc">var</span> first-word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> line, data
<span id="L226" class="LineNr">226 </span> <span class="PreProc">var</span> curr-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *first-word-ah
<span id="L227" class="LineNr">227 </span> <span class="muComment"># loop-carried dependency</span>
<span id="L228" class="LineNr">228 </span> <span class="PreProc">var</span> curr-col/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy left-col
<span id="L229" class="LineNr">229 </span> <span class="muComment">#</span>
<span id="L230" class="LineNr">230 </span> <span class="Delimiter">{</span>
<span id="L231" class="LineNr">231 </span> compare curr-word, <span class="Constant">0</span>
<span id="L232" class="LineNr">232 </span> <span class="PreProc">break-if-=</span>
<span id="L233" class="LineNr">233 </span> <span class="muComment"># if necessary, first render columns for subsidiary stack</span>
<span id="L234" class="LineNr">234 </span> $render-line:subsidiary: <span class="Delimiter">{</span>
<span id="L235" class="LineNr">235 </span> <span class="Delimiter">{</span>
<span id="L236" class="LineNr">236 </span> <span class="PreProc">var</span> display-subsidiary-stack?/<span class="Constant">eax</span>: (addr boolean) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, display-subsidiary-stack?
<span id="L237" class="LineNr">237 </span> compare *display-subsidiary-stack?, <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L238" class="LineNr">238 </span> <span class="PreProc">break-if-=</span> $render-line:subsidiary
<span id="L239" class="LineNr">239 </span> <span class="Delimiter">}</span>
<span id="L240" class="LineNr">240 </span> <span class="muComment"># does function exist?</span>
<span id="L241" class="LineNr">241 </span> <span class="PreProc">var</span> callee/<span class="Constant">edi</span>: (addr function) <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L242" class="LineNr">242 </span> <span class="Delimiter">{</span>
<span id="L243" class="LineNr">243 </span> <span class="PreProc">var</span> curr-stream-storage: (stream byte <span class="Constant">0x10</span>)
<span id="L244" class="LineNr">244 </span> <span class="PreProc">var</span> curr-stream/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar"><-</span> address curr-stream-storage
<span id="L245" class="LineNr">245 </span> emit-word curr-word, curr-stream
<span id="L246" class="LineNr">246 </span> <span class="PreProc">var</span> callee-h: (handle function)
<span id="L247" class="LineNr">247 </span> <span class="PreProc">var</span> callee-ah/<span class="Constant">eax</span>: (addr handle function) <span class="SpecialChar"><-</span> address callee-h
<span id="L248" class="LineNr">248 </span> find-function defs, curr-stream, callee-ah
<span id="L249" class="LineNr">249 </span> <span class="PreProc">var</span> _callee/<span class="Constant">eax</span>: (addr function) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *callee-ah
<span id="L250" class="LineNr">250 </span> callee <span class="SpecialChar"><-</span> copy _callee
<span id="L251" class="LineNr">251 </span> compare callee, <span class="Constant">0</span>
<span id="L252" class="LineNr">252 </span> <span class="PreProc">break-if-=</span> $render-line:subsidiary
<span id="L253" class="LineNr">253 </span> <span class="Delimiter">}</span>
<span id="L254" class="LineNr">254 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, top-row, curr-col
<span id="L255" class="LineNr">255 </span> print-word <a href='../../405screen.mu.html#L9'>screen</a>, curr-word
<span id="L256" class="LineNr">256 </span> <span class="Delimiter">{</span>
<span id="L257" class="LineNr">257 </span> <span class="PreProc">var</span> word-len/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> word-length curr-word
<span id="L258" class="LineNr">258 </span> curr-col <span class="SpecialChar"><-</span> add word-len
<span id="L259" class="LineNr">259 </span> curr-col <span class="SpecialChar"><-</span> add <span class="Constant">2</span>
<span id="L260" class="LineNr">260 </span> add-to top-row, <span class="Constant">1</span>
<span id="L261" class="LineNr">261 </span> <span class="Delimiter">}</span>
<span id="L262" class="LineNr">262 </span> <span class="muComment"># obtain stack at call site</span>
<span id="L263" class="LineNr">263 </span> <span class="PreProc">var</span> stack-storage: value-stack
<span id="L264" class="LineNr">264 </span> <span class="PreProc">var</span> stack/<span class="Constant">edx</span>: (addr value-stack) <span class="SpecialChar"><-</span> address stack-storage
<span id="L265" class="LineNr">265 </span> initialize-value-stack stack, <span class="Constant">0x10</span>
<span id="L266" class="LineNr">266 </span> <span class="Delimiter">{</span>
<span id="L267" class="LineNr">267 </span> <span class="PreProc">var</span> prev-word-ah/<span class="Constant">eax</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, prev
<span id="L268" class="LineNr">268 </span> <span class="PreProc">var</span> prev-word/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *prev-word-ah
<span id="L269" class="LineNr">269 </span> compare prev-word, <span class="Constant">0</span>
<span id="L270" class="LineNr">270 </span> <span class="PreProc">break-if-=</span>
<span id="L271" class="LineNr">271 </span> evaluate defs, bindings, line, prev-word, stack
<span id="L272" class="LineNr">272 </span> <span class="Delimiter">}</span>
<span id="L273" class="LineNr">273 </span> <span class="muComment"># construct new bindings</span>
<span id="L274" class="LineNr">274 </span> <span class="PreProc">var</span> callee-bindings-storage: table
<span id="L275" class="LineNr">275 </span> <span class="PreProc">var</span> callee-bindings/<span class="Constant">esi</span>: (addr table) <span class="SpecialChar"><-</span> address callee-bindings-storage
<span id="L276" class="LineNr">276 </span> initialize-table callee-bindings, <span class="Constant">0x10</span>
<span id="L277" class="LineNr">277 </span> bind-args callee, stack, callee-bindings
<span id="L278" class="LineNr">278 </span> <span class="muComment"># obtain body</span>
<span id="L279" class="LineNr">279 </span> <span class="PreProc">var</span> callee-body-ah/<span class="Constant">eax</span>: (addr handle line) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> callee, body
<span id="L280" class="LineNr">280 </span> <span class="PreProc">var</span> callee-body/<span class="Constant">eax</span>: (addr line) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *callee-body-ah
<span id="L281" class="LineNr">281 </span> # - render subsidiary stack
<span id="L282" class="LineNr">282 </span> curr-col <span class="SpecialChar"><-</span> <a href='environment.mu.html#L222'>render-line</a> <a href='../../405screen.mu.html#L9'>screen</a>, defs, callee-bindings, callee-body, top-row, curr-col, cursor-word, cursor-col-a
<span id="L283" class="LineNr">283 </span> <span class="muComment">#</span>
<span id="L284" class="LineNr">284 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, top-row, curr-col
<span id="L285" class="LineNr">285 </span> <a href='../../405screen.mu.html#L422'>print-code-point</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x21d7</span> <span class="muComment"># ⇗</span>
<span id="L286" class="LineNr">286 </span> <span class="muComment">#</span>
<span id="L287" class="LineNr">287 </span> curr-col <span class="SpecialChar"><-</span> add <span class="Constant">2</span>
<span id="L288" class="LineNr">288 </span> subtract-from top-row, <span class="Constant">1</span>
<span id="L289" class="LineNr">289 </span> <span class="Delimiter">}</span>
<span id="L290" class="LineNr">290 </span> <span class="muComment"># now render main column</span>
<span id="L291" class="LineNr">291 </span> curr-col <span class="SpecialChar"><-</span> <a href='environment.mu.html#L308'>render-column</a> <a href='../../405screen.mu.html#L9'>screen</a>, defs, bindings, line, curr-word, top-row, curr-col, cursor-word, cursor-col-a
<span id="L292" class="LineNr">292 </span> <span class="PreProc">var</span> next-word-ah/<span class="Constant">edx</span>: (addr handle word) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> curr-word, next
<span id="L293" class="LineNr">293 </span> curr-word <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *next-word-ah
<span id="L294" class="LineNr">294 </span> <span class="PreProc">loop</span>
<span id="L295" class="LineNr">295 </span> <span class="Delimiter">}</span>
<span id="L296" class="LineNr">296 </span> right-col <span class="SpecialChar"><-</span> copy curr-col
<span id="L297" class="LineNr">297 </span><span class="Delimiter">}</span>
<span id="L298" class="LineNr">298 </span>
<span id="L299" class="LineNr">299 </span><span class="muComment"># Render:</span>
<span id="L300" class="LineNr">300 </span><span class="muComment"># - starting at top-row, left-col: final-word</span>
<span id="L301" class="LineNr">301 </span><span class="muComment"># - starting somewhere below at left-col: the stack result from interpreting first-world to final-word (inclusive)</span>
<span id="L302" class="LineNr">302 </span><span class="muComment"># unless final-word is truly the final word, in which case it might be incomplete</span>
<span id="L303" class="LineNr">303 </span><span class="muComment">#</span>
<span id="L304" class="LineNr">304 </span><span class="muComment"># Outputs:</span>
<span id="L305" class="LineNr">305 </span># - Return the farthest column written.
<span id="L306" class="LineNr">306 </span># - If final-word is same as cursor-word, do some additional computation to set
<span id="L307" class="LineNr">307 </span><span class="muComment"># cursor-col-a.</span>
<span id="L308" class="LineNr">308 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L308'>render-column</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), defs: (addr handle function), bindings: (addr table), scratch: (addr line), final-word: (addr word), top-row: int, left-col: int, cursor-word: (addr word), cursor-col-a: (addr int)<span class="PreProc"> -> </span>right-col/<span class="Constant">ecx</span>: int <span class="Delimiter">{</span>
<span id="L309" class="LineNr">309 </span> <span class="PreProc">var</span> max-width/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L310" class="LineNr">310 </span> <span class="Delimiter">{</span>
<span id="L311" class="LineNr">311 </span> <span class="muComment"># indent stack</span>
<span id="L312" class="LineNr">312 </span> <span class="PreProc">var</span> indented-col/<span class="Constant">ebx</span>: int <span class="SpecialChar"><-</span> copy left-col
<span id="L313" class="LineNr">313 </span> indented-col <span class="SpecialChar"><-</span> add <span class="Constant">1</span> <span class="muComment"># margin-right - 2 for padding spaces</span>
<span id="L314" class="LineNr">314 </span> <span class="muComment"># compute stack</span>
<span id="L315" class="LineNr">315 </span> <span class="PreProc">var</span> stack: value-stack
<span id="L316" class="LineNr">316 </span> <span class="PreProc">var</span> stack-addr/<span class="Constant">edi</span>: (addr value-stack) <span class="SpecialChar"><-</span> address stack
<span id="L317" class="LineNr">317 </span> initialize-value-stack stack-addr, <span class="Constant">0x10</span> <span class="muComment"># max-words</span>
<span id="L318" class="LineNr">318 </span> evaluate defs, bindings, scratch, final-word, stack-addr
<span id="L319" class="LineNr">319 </span> <span class="muComment"># render stack</span>
<span id="L320" class="LineNr">320 </span> <span class="PreProc">var</span> curr-row/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy top-row
<span id="L321" class="LineNr">321 </span> curr-row <span class="SpecialChar"><-</span> add <span class="Constant">3</span> <span class="muComment"># stack-margin-top</span>
<span id="L322" class="LineNr">322 </span> <span class="PreProc">var</span> _max-width/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> value-stack-max-width stack-addr
<span id="L323" class="LineNr">323 </span> <span class="PreProc">var</span> max-width/<span class="Constant">esi</span>: int <span class="SpecialChar"><-</span> copy _max-width
<span id="L324" class="LineNr">324 </span> <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> value-stack-length stack-addr
<span id="L325" class="LineNr">325 </span> <span class="Delimiter">{</span>
<span id="L326" class="LineNr">326 </span> compare i, <span class="Constant">0</span>
<span id="L327" class="LineNr">327 </span> <span class="PreProc">break-if-<=</span>
<span id="L328" class="LineNr">328 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, curr-row, indented-col
<span id="L329" class="LineNr">329 </span> <span class="Delimiter">{</span>
<span id="L330" class="LineNr">330 </span> <span class="PreProc">var</span> val/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> pop-int-from-value-stack stack-addr
<span id="L331" class="LineNr">331 </span> <a href='environment.mu.html#L372'>render-integer</a> <a href='../../405screen.mu.html#L9'>screen</a>, val, max-width
<span id="L332" class="LineNr">332 </span> <span class="PreProc">var</span> <a href='../../307size.subx.html#L5'>size</a>/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> <a href='../../311decimal-int.subx.html#L287'>decimal-size</a> val
<span id="L333" class="LineNr">333 </span> compare <a href='../../307size.subx.html#L5'>size</a>, max-width
<span id="L334" class="LineNr">334 </span> <span class="PreProc">break-if-<=</span>
<span id="L335" class="LineNr">335 </span> max-width <span class="SpecialChar"><-</span> copy <a href='../../307size.subx.html#L5'>size</a>
<span id="L336" class="LineNr">336 </span> <span class="Delimiter">}</span>
<span id="L337" class="LineNr">337 </span> curr-row <span class="SpecialChar"><-</span> increment
<span id="L338" class="LineNr">338 </span> i <span class="SpecialChar"><-</span> decrement
<span id="L339" class="LineNr">339 </span> <span class="PreProc">loop</span>
<span id="L340" class="LineNr">340 </span> <span class="Delimiter">}</span>
<span id="L341" class="LineNr">341 </span> <span class="Delimiter">}</span>
<span id="L342" class="LineNr">342 </span>
<span id="L343" class="LineNr">343 </span> <span class="muComment"># render word, initialize result</span>
<span id="L344" class="LineNr">344 </span> <a href='../../405screen.mu.html#L496'>reset-formatting</a> <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L345" class="LineNr">345 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, top-row, left-col
<span id="L346" class="LineNr">346 </span> print-word <a href='../../405screen.mu.html#L9'>screen</a>, final-word
<span id="L347" class="LineNr">347 </span> <span class="Delimiter">{</span>
<span id="L348" class="LineNr">348 </span> <span class="PreProc">var</span> <a href='../../307size.subx.html#L5'>size</a>/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> word-length final-word
<span id="L349" class="LineNr">349 </span> compare <a href='../../307size.subx.html#L5'>size</a>, max-width
<span id="L350" class="LineNr">350 </span> <span class="PreProc">break-if-<=</span>
<span id="L351" class="LineNr">351 </span> max-width <span class="SpecialChar"><-</span> copy <a href='../../307size.subx.html#L5'>size</a>
<span id="L352" class="LineNr">352 </span> <span class="Delimiter">}</span>
<span id="L353" class="LineNr">353 </span>
<span id="L354" class="LineNr">354 </span> <span class="muComment"># update cursor</span>
<span id="L355" class="LineNr">355 </span> <span class="Delimiter">{</span>
<span id="L356" class="LineNr">356 </span> <span class="PreProc">var</span> f/<span class="Constant">eax</span>: (addr word) <span class="SpecialChar"><-</span> copy final-word
<span id="L357" class="LineNr">357 </span> compare f, cursor-word
<span id="L358" class="LineNr">358 </span> <span class="PreProc">break-if-!=</span>
<span id="L359" class="LineNr">359 </span> <span class="PreProc">var</span> cursor-index/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> cursor-index cursor-word
<span id="L360" class="LineNr">360 </span> cursor-index <span class="SpecialChar"><-</span> add left-col
<span id="L361" class="LineNr">361 </span> <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar"><-</span> copy cursor-col-a
<span id="L362" class="LineNr">362 </span> copy-to *dest, cursor-index
<span id="L363" class="LineNr">363 </span> <span class="Delimiter">}</span>
<span id="L364" class="LineNr">364 </span>
<span id="L365" class="LineNr">365 </span> <span class="muComment"># post-process right-col</span>
<span id="L366" class="LineNr">366 </span> right-col <span class="SpecialChar"><-</span> copy max-width
<span id="L367" class="LineNr">367 </span> right-col <span class="SpecialChar"><-</span> add left-col
<span id="L368" class="LineNr">368 </span> right-col <span class="SpecialChar"><-</span> add <span class="Constant">3</span> <span class="muComment"># margin-right</span>
<span id="L369" class="LineNr">369 </span><span class="Delimiter">}</span>
<span id="L370" class="LineNr">370 </span>
<span id="L371" class="LineNr">371 </span><span class="muComment"># synaesthesia</span>
<span id="L372" class="LineNr">372 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L372'>render-integer</a></span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), val: int, max-width: int <span class="Delimiter">{</span>
<span id="L373" class="LineNr">373 </span> <span class="PreProc">var</span> bg/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> <a href='environment.mu.html#L396'>hash-color</a> val
<span id="L374" class="LineNr">374 </span> <span class="PreProc">var</span> fg/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">7</span>
<span id="L375" class="LineNr">375 </span> <span class="Delimiter">{</span>
<span id="L376" class="LineNr">376 </span> compare bg, <span class="Constant">2</span>
<span id="L377" class="LineNr">377 </span> <span class="PreProc">break-if-!=</span>
<span id="L378" class="LineNr">378 </span> fg <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L379" class="LineNr">379 </span> <span class="Delimiter">}</span>
<span id="L380" class="LineNr">380 </span> <span class="Delimiter">{</span>
<span id="L381" class="LineNr">381 </span> compare bg, <span class="Constant">3</span>
<span id="L382" class="LineNr">382 </span> <span class="PreProc">break-if-!=</span>
<span id="L383" class="LineNr">383 </span> fg <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L384" class="LineNr">384 </span> <span class="Delimiter">}</span>
<span id="L385" class="LineNr">385 </span> <span class="Delimiter">{</span>
<span id="L386" class="LineNr">386 </span> compare bg, <span class="Constant">6</span>
<span id="L387" class="LineNr">387 </span> <span class="PreProc">break-if-!=</span>
<span id="L388" class="LineNr">388 </span> fg <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
<span id="L389" class="LineNr">389 </span> <span class="Delimiter">}</span>
<span id="L390" class="LineNr">390 </span> <a href='../../405screen.mu.html#L518'>start-color</a> <a href='../../405screen.mu.html#L9'>screen</a>, fg, bg
<span id="L391" class="LineNr">391 </span> <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span> <span class="muComment"># space</span>
<span id="L392" class="LineNr">392 </span> <a href='../../407print-int32-decimal-right-justified.mu.html#L2'>print-int32-decimal-right-justified</a> <a href='../../405screen.mu.html#L9'>screen</a>, val, max-width
<span id="L393" class="LineNr">393 </span> <a href='../../405screen.mu.html#L206'>print-grapheme</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">0x20</span> <span class="muComment"># space</span>
<span id="L394" class="LineNr">394 </span><span class="Delimiter">}</span>
<span id="L395" class="LineNr">395 </span>
<span id="L396" class="LineNr">396 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L396'>hash-color</a></span> val: int<span class="PreProc"> -> </span>result/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
<span id="L397" class="LineNr">397 </span> result <span class="SpecialChar"><-</span> <a href='../../406try-divide.mu.html#L86'>try-modulo</a> val, <span class="Constant">7</span> <span class="muComment"># assumes that 7 is always the background color</span>
<span id="L398" class="LineNr">398 </span><span class="Delimiter">}</span>
<span id="L399" class="LineNr">399 </span>
<span id="L400" class="LineNr">400 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L400'>clear-canvas</a></span> _env: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="Delimiter">{</span>
<span id="L401" class="LineNr">401 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar"><-</span> copy _env
<span id="L402" class="LineNr">402 </span> <span class="PreProc">var</span> screen-ah/<span class="Constant">edi</span>: (addr handle <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L403" class="LineNr">403 </span> <span class="PreProc">var</span> _screen/<span class="Constant">eax</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> <a href='../../120allocate.subx.html#L256'>lookup</a> *screen-ah
<span id="L404" class="LineNr">404 </span> <span class="PreProc">var</span> <a href='../../405screen.mu.html#L9'>screen</a>/<span class="Constant">edi</span>: (addr <a href='../../405screen.mu.html#L9'>screen</a>) <span class="SpecialChar"><-</span> copy _screen
<span id="L405" class="LineNr">405 </span> <a href='../../405screen.mu.html#L80'>clear-screen</a> <a href='../../405screen.mu.html#L9'>screen</a>
<span id="L406" class="LineNr">406 </span> <span class="PreProc">var</span> nrows/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, nrows
<span id="L407" class="LineNr">407 </span> <span class="PreProc">var</span> _repl-col/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> env, code-separator-col
<span id="L408" class="LineNr">408 </span> <span class="PreProc">var</span> repl-col/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy *_repl-col
<span id="L409" class="LineNr">409 </span> draw-vertical-line <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">1</span>, *nrows, repl-col
<span id="L410" class="LineNr">410 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">3</span>, <span class="Constant">2</span>
<span id="L411" class="LineNr">411 </span> <a href='../../405screen.mu.html#L179'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">"x 2* = x 2 *"</span>
<span id="L412" class="LineNr">412 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">4</span>, <span class="Constant">2</span>
<span id="L413" class="LineNr">413 </span> <a href='../../405screen.mu.html#L179'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">"x 1+ = x 1 +"</span>
<span id="L414" class="LineNr">414 </span> <a href='../../405screen.mu.html#L116'>move-cursor</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">5</span>, <span class="Constant">2</span>
<span id="L415" class="LineNr">415 </span> <a href='../../405screen.mu.html#L179'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">"x 2+ = x 1+ 1+"</span>
<span id="L416" class="LineNr">416 </span><span class="Delimiter">}</span>
<span id="L417" class="LineNr">417 </span>
<span id="L418" class="LineNr">418 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='environment.mu.html#L418'>real-grapheme?</a></span> g: grapheme<span class="PreProc"> -> </span>result/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span>
<span id="L419" class="LineNr">419 </span>$real-grapheme?:body: <span class="Delimiter">{</span>
<span id="L420" class="LineNr">420 </span> <span class="muComment"># if g == newline return true</span>
<span id="L421" class="LineNr">421 </span> compare g, <span class="Constant">0xa</span>
<span id="L422" class="LineNr">422 </span> <span class="Delimiter">{</span>
<span id="L423" class="LineNr">423 </span> <span class="PreProc">break-if-!=</span>
<span id="L424" class="LineNr">424 </span> result <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> <span class="muComment"># true</span>
<span id="L425" class="LineNr">425 </span> <span class="PreProc">break</span> $real-grapheme?:body
<span id="L426" class="LineNr">426 </span> <span class="Delimiter">}</span>
<span id="L427" class="LineNr">427 </span> <span class="muComment"># if g == tab return true</span>
<span id="L428" class="LineNr">428 </span> compare g, <span class="Constant">9</span>
<span id="L429" class="LineNr">429 </span> <span class="Delimiter">{</span>
<span id="L430" class="LineNr">430 </span> <span class="PreProc">break-if-!=</span>
<span id="L431" class="LineNr">431 </span> result <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> <span class="muComment"># true</span>
<span id="L432" class="LineNr">432 </span> <span class="PreProc">break</span> $real-grapheme?:body
<span id="L433" class="LineNr">433 </span> <span class="Delimiter">}</span>
<span id="L434" class="LineNr">434 </span> <span class="muComment"># if g < 32 return false</span>
<span id="L435" class="LineNr">435 </span> compare g, <span class="Constant">0x20</span>
<span id="L436" class="LineNr">436 </span> <span class="Delimiter">{</span>
<span id="L437" class="LineNr">437 </span> <span class="PreProc">break-if->=</span>
<span id="L438" class="LineNr">438 </span> result <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L439" class="LineNr">439 </span> <span class="PreProc">break</span> $real-grapheme?:body
<span id="L440" class="LineNr">440 </span> <span class="Delimiter">}</span>
<span id="L441" class="LineNr">441 </span> <span class="muComment"># if g <= 255 return true</span>
<span id="L442" class="LineNr">442 </span> compare g, <span class="Constant">0xff</span>
<span id="L443" class="LineNr">443 </span> <span class="Delimiter">{</span>
<span id="L444" class="LineNr">444 </span> <span class="PreProc">break-if-></span>
<span id="L445" class="LineNr">445 </span> result <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> <span class="muComment"># true</span>
<span id="L446" class="LineNr">446 </span> <span class="PreProc">break</span> $real-grapheme?:body
<span id="L447" class="LineNr">447 </span> <span class="Delimiter">}</span>
<span id="L448" class="LineNr">448 </span> <span class="muComment"># if (g&0xff == Esc) it's an escape sequence</span>
<span id="L449" class="LineNr">449 </span> and-with g, <span class="Constant">0xff</span>
<span id="L450" class="LineNr">450 </span> compare g, <span class="Constant">0x1b</span> <span class="muComment"># Esc</span>
<span id="L451" class="LineNr">451 </span> <span class="Delimiter">{</span>
<span id="L452" class="LineNr">452 </span> <span class="PreProc">break-if-!=</span>
<span id="L453" class="LineNr">453 </span> result <span class="SpecialChar"><-</span> copy <span class="Constant">0</span> <span class="muComment"># false</span>
<span id="L454" class="LineNr">454 </span> <span class="PreProc">break</span> $real-grapheme?:body
<span id="L455" class="LineNr">455 </span> <span class="Delimiter">}</span>
<span id="L456" class="LineNr">456 </span> <span class="muComment"># otherwise return true</span>
<span id="L457" class="LineNr">457 </span> result <span class="SpecialChar"><-</span> copy <span class="Constant">1</span> <span class="muComment"># true</span>
<span id="L458" class="LineNr">458 </span><span class="Delimiter">}</span>
<span id="L459" class="LineNr">459 </span><span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|