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
|
<!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 - 011run.cc</title>
<meta name="Generator" content="Vim/8.1">
<meta name="plugin-version" content="vim8.1_v1">
<meta name="syntax" content="cpp">
<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; }
.cSpecial { color: #008000; }
.LineNr { }
.SpecialChar { color: #d70000; }
.Comment { color: #005faf; }
.Delimiter { color: #c000c0; }
.Identifier { color: #af5f00; }
.Constant { color: #008787; }
.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; }
.SalientComment { color: #0000af; }
-->
</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/011run.cc'>https://github.com/akkartik/mu/blob/master/011run.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Running SubX programs on the VM.</span>
<span id="L2" class="LineNr"> 2 </span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: (Not to be confused with the 'run' subcommand for running ELF binaries on</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: the VM. That comes later.)</span>
<span id="L5" class="LineNr"> 5 </span>
<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span>
<span id="L7" class="LineNr"> 7 </span><a href='001help.cc.html#L235'>put_new</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"syntax"</span><span class="Delimiter">,</span>
<span id="L8" class="LineNr"> 8 </span> <span class="Constant">"SubX programs consist of <a href='011run.cc.html#L106'>segments</a>, each segment in turn consisting of lines.\n"</span>
<span id="L9" class="LineNr"> 9 </span> <span class="Constant">"Line-endings are significant; each <a href='011run.cc.html#L121'>line</a> should contain a single\n"</span>
<span id="L10" class="LineNr"> 10 </span> <span class="Constant">"instruction, macro or directive.\n"</span>
<span id="L11" class="LineNr"> 11 </span> <span class="Constant">"\n"</span>
<span id="L12" class="LineNr"> 12 </span> <span class="Constant">"Comments start with the '#' character. It should be at the start of a word\n"</span>
<span id="L13" class="LineNr"> 13 </span> <span class="Constant">"(start of <a href='011run.cc.html#L121'>line</a>, or following a space).\n"</span>
<span id="L14" class="LineNr"> 14 </span> <span class="Constant">"\n"</span>
<span id="L15" class="LineNr"> 15 </span> <span class="Constant">"Each segment starts with a header <a href='011run.cc.html#L121'>line</a>: a '==' delimiter followed by the <a href='011run.cc.html#L111'>name</a> of\n"</span>
<span id="L16" class="LineNr"> 16 </span> <span class="Constant">"the segment and a (sometimes approximate) starting address in memory.\n"</span>
<span id="L17" class="LineNr"> 17 </span> <span class="Constant">"The <a href='011run.cc.html#L111'>name</a> 'code' is special; instructions to execute should always go here.\n"</span>
<span id="L18" class="LineNr"> 18 </span> <span class="Constant">"\n"</span>
<span id="L19" class="LineNr"> 19 </span> <span class="Constant">"The resulting binary starts running code from a label called 'Entry'\n"</span>
<span id="L20" class="LineNr"> 20 </span> <span class="Constant">"in the code segment.\n"</span>
<span id="L21" class="LineNr"> 21 </span> <span class="Constant">"\n"</span>
<span id="L22" class="LineNr"> 22 </span> <span class="Constant">"Segments with the same <a href='011run.cc.html#L111'>name</a> get merged together. This rule helps keep functions\n"</span>
<span id="L23" class="LineNr"> 23 </span> <span class="Constant">"and their data close together in .subx files.\n"</span>
<span id="L24" class="LineNr"> 24 </span> <span class="Constant">"You don't have to specify the starting address after the first time.\n"</span>
<span id="L25" class="LineNr"> 25 </span> <span class="Constant">"\n"</span>
<span id="L26" class="LineNr"> 26 </span> <span class="Constant">"Lines consist of a series of words. Words can contain arbitrary metadata\n"</span>
<span id="L27" class="LineNr"> 27 </span> <span class="Constant">"after a '/', but they can never contain whitespace. Metadata has no effect\n"</span>
<span id="L28" class="LineNr"> 28 </span> <span class="Constant">"at runtime, but can be handy when rewriting macros.\n"</span>
<span id="L29" class="LineNr"> 29 </span> <span class="Constant">"\n"</span>
<span id="L30" class="LineNr"> 30 </span> <span class="Constant">"Check out the example programs in the apps/ directory, particularly apps/ex*.\n"</span>
<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">);</span>
<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span>
<span id="L33" class="LineNr"> 33 </span>cerr << <span class="Constant">" syntax\n"</span><span class="Delimiter">;</span>
<span id="L34" class="LineNr"> 34 </span>
<span id="L35" class="LineNr"> 35 </span><span class="Delimiter">:(code)</span>
<span id="L36" class="LineNr"> 36 </span><span class="Normal">void</span> <a href='011run.cc.html#L36'>test_copy_imm32_to_EAX</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L37" class="LineNr"> 37 </span> <span class="Comment">// At the lowest level, SubX programs are a series of hex bytes, each</span>
<span id="L38" class="LineNr"> 38 </span> <span class="Comment">// (variable-length) instruction on one line.</span>
<span id="L39" class="LineNr"> 39 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L40" class="LineNr"> 40 </span> <span class="Comment">// Comments start with '#' and are ignored.</span>
<span id="L41" class="LineNr"> 41 </span> <span class="Constant">"# comment\n"</span>
<span id="L42" class="LineNr"> 42 </span> <span class="Comment">// Segment headers start with '==', a name and a starting hex address.</span>
<span id="L43" class="LineNr"> 43 </span> <span class="Comment">// There's usually one code and one data segment. The code segment</span>
<span id="L44" class="LineNr"> 44 </span> <span class="Comment">// always comes first.</span>
<span id="L45" class="LineNr"> 45 </span> <span class="Constant">"== code 0x1\n"</span> <span class="Comment">// code segment</span>
<span id="L46" class="LineNr"> 46 </span>
<span id="L47" class="LineNr"> 47 </span> <span class="Comment">// After the header, each segment consists of lines, and each line</span>
<span id="L48" class="LineNr"> 48 </span> <span class="Comment">// consists of words separated by whitespace.</span>
<span id="L49" class="LineNr"> 49 </span> <span class="Comment">//</span>
<span id="L50" class="LineNr"> 50 </span> <span class="Comment">// All words can have metadata after a '/'. No spaces allowed in</span>
<span id="L51" class="LineNr"> 51 </span> <span class="Comment">// metadata, of course.</span>
<span id="L52" class="LineNr"> 52 </span> <span class="Comment">// Unrecognized metadata never causes errors, so you can use it for</span>
<span id="L53" class="LineNr"> 53 </span> <span class="Comment">// documentation.</span>
<span id="L54" class="LineNr"> 54 </span> <span class="Comment">//</span>
<span id="L55" class="LineNr"> 55 </span> <span class="Comment">// Within the code segment in particular, x86 instructions consist of</span>
<span id="L56" class="LineNr"> 56 </span> <span class="Comment">// some number of the following parts and sub-parts (see the Readme and</span>
<span id="L57" class="LineNr"> 57 </span> <span class="Comment">// cheatsheet.pdf for details):</span>
<span id="L58" class="LineNr"> 58 </span> <span class="Comment">// opcodes: 1-3 bytes</span>
<span id="L59" class="LineNr"> 59 </span> <span class="Comment">// ModR/M byte</span>
<span id="L60" class="LineNr"> 60 </span> <span class="Comment">// SIB byte</span>
<span id="L61" class="LineNr"> 61 </span> <span class="Comment">// displacement: 0/1/2/4 bytes</span>
<span id="L62" class="LineNr"> 62 </span> <span class="Comment">// immediate: 0/1/2/4 bytes</span>
<span id="L63" class="LineNr"> 63 </span> <span class="Comment">// opcode ModR/M SIB displacement immediate</span>
<span id="L64" class="LineNr"> 64 </span> <span class="Comment">// instruction mod, reg, Reg/Mem bits scale, index, base</span>
<span id="L65" class="LineNr"> 65 </span> <span class="Comment">// 1-3 bytes 0/1 byte 0/1 byte 0/1/2/4 bytes 0/1/2/4 bytes</span>
<span id="L66" class="LineNr"> 66 </span> <span class="Constant">" b8 . . . 0a 0b 0c 0d\n"</span> <span class="Comment">// copy 0x0d0c0b0a to EAX</span>
<span id="L67" class="LineNr"> 67 </span> <span class="Comment">// The periods are just to help the eye track long gaps between columns,</span>
<span id="L68" class="LineNr"> 68 </span> <span class="Comment">// and are otherwise ignored.</span>
<span id="L69" class="LineNr"> 69 </span> <span class="Delimiter">);</span>
<span id="L70" class="LineNr"> 70 </span> <span class="Comment">// This program, when run, causes the following events in the trace:</span>
<span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L72" class="LineNr"> 72 </span> <span class="Constant">"load: 0x00000001 -> b8\n"</span>
<span id="L73" class="LineNr"> 73 </span> <span class="Constant">"load: 0x00000002 -> 0a\n"</span>
<span id="L74" class="LineNr"> 74 </span> <span class="Constant">"load: 0x00000003 -> 0b\n"</span>
<span id="L75" class="LineNr"> 75 </span> <span class="Constant">"load: 0x00000004 -> 0c\n"</span>
<span id="L76" class="LineNr"> 76 </span> <span class="Constant">"load: 0x00000005 -> 0d\n"</span>
<span id="L77" class="LineNr"> 77 </span> <span class="Constant">"run: copy imm32 0x0d0c0b0a to EAX\n"</span>
<span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">);</span>
<span id="L79" class="LineNr"> 79 </span><span class="Delimiter">}</span>
<span id="L80" class="LineNr"> 80 </span>
<span id="L81" class="LineNr"> 81 </span><span class="Comment">// top-level helper for tests: parse the input, load the hex bytes into memory, run</span>
<span id="L82" class="LineNr"> 82 </span><span class="Normal">void</span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span> program p<span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Comment">// Loading Test Program</span>
<span id="L86" class="LineNr"> 86 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span>
<span id="L87" class="LineNr"> 87 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L262'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if any stage raises errors, stop immediately</span>
<span id="L88" class="LineNr"> 88 </span> <span class="Comment">// Running Test Program</span>
<span id="L89" class="LineNr"> 89 </span> <a href='011run.cc.html#L248'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span>
<span id="L90" class="LineNr"> 90 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L262'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L91" class="LineNr"> 91 </span> <span class="Comment">// convenience to keep tests concise: 'Entry' label need not be provided</span>
<span id="L92" class="LineNr"> 92 </span> <span class="Comment">// not allowed in real programs</span>
<span id="L93" class="LineNr"> 93 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L105'>entry</a><span class="Delimiter">)</span>
<span id="L94" class="LineNr"> 94 </span> <a href='010vm.cc.html#L26'>EIP</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L105'>entry</a><span class="Delimiter">;</span>
<span id="L95" class="LineNr"> 95 </span> <span class="Normal">else</span>
<span id="L96" class="LineNr"> 96 </span> <a href='010vm.cc.html#L26'>EIP</a> = find<span class="Delimiter">(</span>p<span class="Delimiter">,</span> <span class="Constant">"code"</span><span class="Delimiter">)-></span>start<span class="Delimiter">;</span>
<span id="L97" class="LineNr"> 97 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010vm.cc.html#L26'>EIP</a> < <span class="SpecialChar"><a href='010vm.cc.html#L166'>End_of_program</a></span><span class="Delimiter">)</span>
<span id="L98" class="LineNr"> 98 </span> <a href='010vm.cc.html#L277'>run_one_instruction</a><span class="Delimiter">();</span>
<span id="L99" class="LineNr"> 99 </span><span class="Delimiter">}</span>
<span id="L100" class="LineNr">100 </span>
<span id="L101" class="LineNr">101 </span><span class="SalientComment">//:: core data structures</span>
<span id="L102" class="LineNr">102 </span>
<span id="L103" class="LineNr">103 </span><span class="Delimiter">:(before "End Types")</span>
<span id="L104" class="LineNr">104 </span><span class="Normal">struct</span> program <span class="Delimiter">{</span>
<span id="L105" class="LineNr">105 </span> <span class="Normal">uint32_t</span> <a href='011run.cc.html#L105'>entry</a><span class="Delimiter">;</span>
<span id="L106" class="LineNr">106 </span> vector<segment> <a href='011run.cc.html#L106'>segments</a><span class="Delimiter">;</span>
<span id="L107" class="LineNr">107 </span> program<span class="Delimiter">()</span> <span class="Delimiter">{</span> <a href='011run.cc.html#L105'>entry</a> = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Delimiter">}</span>
<span id="L108" class="LineNr">108 </span><span class="Delimiter">};</span>
<span id="L109" class="LineNr">109 </span><span class="Delimiter">:(before "struct program")</span>
<span id="L110" class="LineNr">110 </span><span class="Normal">struct</span> segment <span class="Delimiter">{</span>
<span id="L111" class="LineNr">111 </span> string <a href='011run.cc.html#L111'>name</a><span class="Delimiter">;</span>
<span id="L112" class="LineNr">112 </span> <span class="Normal">uint32_t</span> start<span class="Delimiter">;</span>
<span id="L113" class="LineNr">113 </span> vector<line> <a href='011run.cc.html#L113'>lines</a><span class="Delimiter">;</span>
<span id="L114" class="LineNr">114 </span> <span class="Comment">// End segment Fields</span>
<span id="L115" class="LineNr">115 </span> segment<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L116" class="LineNr">116 </span> start = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L117" class="LineNr">117 </span> <span class="Comment">// End segment Constructor</span>
<span id="L118" class="LineNr">118 </span> <span class="Delimiter">}</span>
<span id="L119" class="LineNr">119 </span><span class="Delimiter">};</span>
<span id="L120" class="LineNr">120 </span><span class="Delimiter">:(before "struct segment")</span>
<span id="L121" class="LineNr">121 </span><span class="Normal">struct</span> <a href='011run.cc.html#L121'>line</a> <span class="Delimiter">{</span>
<span id="L122" class="LineNr">122 </span> vector<word> <a href='011run.cc.html#L122'>words</a><span class="Delimiter">;</span>
<span id="L123" class="LineNr">123 </span> vector<string> metadata<span class="Delimiter">;</span>
<span id="L124" class="LineNr">124 </span> string original<span class="Delimiter">;</span>
<span id="L125" class="LineNr">125 </span><span class="Delimiter">};</span>
<span id="L126" class="LineNr">126 </span><span class="Delimiter">:(before "struct line")</span>
<span id="L127" class="LineNr">127 </span><span class="Normal">struct</span> <a href='011run.cc.html#L127'>word</a> <span class="Delimiter">{</span>
<span id="L128" class="LineNr">128 </span> string original<span class="Delimiter">;</span>
<span id="L129" class="LineNr">129 </span> string data<span class="Delimiter">;</span>
<span id="L130" class="LineNr">130 </span> vector<string> metadata<span class="Delimiter">;</span>
<span id="L131" class="LineNr">131 </span><span class="Delimiter">};</span>
<span id="L132" class="LineNr">132 </span>
<span id="L133" class="LineNr">133 </span><span class="SalientComment">//:: parse</span>
<span id="L134" class="LineNr">134 </span>
<span id="L135" class="LineNr">135 </span><span class="Delimiter">:(code)</span>
<span id="L136" class="LineNr">136 </span><span class="Normal">void</span> parse<span class="Delimiter">(</span>istream& fin<span class="Delimiter">,</span> program& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L137" class="LineNr">137 </span> segment* curr_segment = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span id="L138" class="LineNr">138 </span> vector<line> l<span class="Delimiter">;</span>
<span id="L139" class="LineNr">139 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>has_data</a><span class="Delimiter">(</span>fin<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L140" class="LineNr">140 </span> string line_data<span class="Delimiter">;</span>
<span id="L141" class="LineNr">141 </span> <a href='011run.cc.html#L121'>line</a> curr<span class="Delimiter">;</span>
<span id="L142" class="LineNr">142 </span> getline<span class="Delimiter">(</span>fin<span class="Delimiter">,</span> line_data<span class="Delimiter">);</span>
<span id="L143" class="LineNr">143 </span> curr<span class="Delimiter">.</span>original = line_data<span class="Delimiter">;</span>
<span id="L144" class="LineNr">144 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"line: "</span> << line_data << end<span class="Delimiter">();</span>
<span id="L145" class="LineNr">145 </span> <span class="Comment">// End Line Parsing Special-cases(line_data -> l)</span>
<span id="L146" class="LineNr">146 </span> istringstream lin<span class="Delimiter">(</span>line_data<span class="Delimiter">);</span>
<span id="L147" class="LineNr">147 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>has_data</a><span class="Delimiter">(</span>lin<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L148" class="LineNr">148 </span> string word_data<span class="Delimiter">;</span>
<span id="L149" class="LineNr">149 </span> lin >> word_data<span class="Delimiter">;</span>
<span id="L150" class="LineNr">150 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L151" class="LineNr">151 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data[<span class="Constant">0</span>] == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// comment</span>
<span id="L152" class="LineNr">152 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data == <span class="Constant">"."</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// comment token</span>
<span id="L153" class="LineNr">153 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data == <span class="Constant">"=="</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L154" class="LineNr">154 </span> <a href='011run.cc.html#L198'>flush</a><span class="Delimiter">(</span>curr_segment<span class="Delimiter">,</span> l<span class="Delimiter">);</span>
<span id="L155" class="LineNr">155 </span> string segment_name<span class="Delimiter">;</span>
<span id="L156" class="LineNr">156 </span> lin >> segment_name<span class="Delimiter">;</span>
<span id="L157" class="LineNr">157 </span> curr_segment = find<span class="Delimiter">(</span>out<span class="Delimiter">,</span> segment_name<span class="Delimiter">);</span>
<span id="L158" class="LineNr">158 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_segment != <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L159" class="LineNr">159 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"appending to segment '"</span> << segment_name << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span>
<span id="L160" class="LineNr">160 </span> <span class="Delimiter">}</span>
<span id="L161" class="LineNr">161 </span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L162" class="LineNr">162 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"new segment '"</span> << segment_name << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span>
<span id="L163" class="LineNr">163 </span> <span class="Normal">uint32_t</span> seg_start = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L164" class="LineNr">164 </span> lin >> std::hex >> seg_start<span class="Delimiter">;</span>
<span id="L165" class="LineNr">165 </span> <a href='011run.cc.html#L219'>sanity_check_program_segment</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> seg_start<span class="Delimiter">);</span>
<span id="L166" class="LineNr">166 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>segment<span class="Delimiter">());</span>
<span id="L167" class="LineNr">167 </span> curr_segment = &out<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>back<span class="Delimiter">();</span>
<span id="L168" class="LineNr">168 </span> curr_segment<span class="Delimiter">-></span><a href='011run.cc.html#L111'>name</a> = segment_name<span class="Delimiter">;</span>
<span id="L169" class="LineNr">169 </span> curr_segment<span class="Delimiter">-></span>start = seg_start<span class="Delimiter">;</span>
<span id="L170" class="LineNr">170 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L262'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L171" class="LineNr">171 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"starts at address 0x"</span> << <a href='010vm.cc.html#L408'>HEXWORD</a> << curr_segment<span class="Delimiter">-></span>start << end<span class="Delimiter">();</span>
<span id="L172" class="LineNr">172 </span> <span class="Delimiter">}</span>
<span id="L173" class="LineNr">173 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// skip rest of line</span>
<span id="L174" class="LineNr">174 </span> <span class="Delimiter">}</span>
<span id="L175" class="LineNr">175 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data[<span class="Constant">0</span>] == <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L176" class="LineNr">176 </span> <span class="Comment">// todo: line metadata</span>
<span id="L177" class="LineNr">177 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L178" class="LineNr">178 </span> <span class="Delimiter">}</span>
<span id="L179" class="LineNr">179 </span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L127'>word</a><span class="Delimiter">());</span>
<span id="L180" class="LineNr">180 </span> <a href='011run.cc.html#L209'>parse_word</a><span class="Delimiter">(</span>word_data<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span>
<span id="L181" class="LineNr">181 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"word: "</span> << to_string<span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">());</span>
<span id="L182" class="LineNr">182 </span> <span class="Delimiter">}</span>
<span id="L183" class="LineNr">183 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
<span id="L184" class="LineNr">184 </span> l<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span>
<span id="L185" class="LineNr">185 </span> <span class="Delimiter">}</span>
<span id="L186" class="LineNr">186 </span> <a href='011run.cc.html#L198'>flush</a><span class="Delimiter">(</span>curr_segment<span class="Delimiter">,</span> l<span class="Delimiter">);</span>
<span id="L187" class="LineNr">187 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << end<span class="Delimiter">();</span>
<span id="L188" class="LineNr">188 </span><span class="Delimiter">}</span>
<span id="L189" class="LineNr">189 </span>
<span id="L190" class="LineNr">190 </span>segment* find<span class="Delimiter">(</span>program& p<span class="Delimiter">,</span> <span class="Normal">const</span> string& segment_name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L191" class="LineNr">191 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L192" class="LineNr">192 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L111'>name</a> == segment_name<span class="Delimiter">)</span>
<span id="L193" class="LineNr">193 </span> <span class="Identifier">return</span> &p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L194" class="LineNr">194 </span> <span class="Delimiter">}</span>
<span id="L195" class="LineNr">195 </span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span id="L196" class="LineNr">196 </span><span class="Delimiter">}</span>
<span id="L197" class="LineNr">197 </span>
<span id="L198" class="LineNr">198 </span><span class="Normal">void</span> <a href='011run.cc.html#L198'>flush</a><span class="Delimiter">(</span>segment* s<span class="Delimiter">,</span> vector<line>& <a href='011run.cc.html#L113'>lines</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L199" class="LineNr">199 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L200" class="LineNr">200 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L201" class="LineNr">201 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"input does not start with a '==' section header\n"</span> << end<span class="Delimiter">();</span>
<span id="L202" class="LineNr">202 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L203" class="LineNr">203 </span> <span class="Delimiter">}</span>
<span id="L204" class="LineNr">204 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing segment"</span> << end<span class="Delimiter">();</span>
<span id="L205" class="LineNr">205 </span> s<span class="Delimiter">-></span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span>s<span class="Delimiter">-></span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>end<span class="Delimiter">(),</span> <a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> <a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>end<span class="Delimiter">());</span>
<span id="L206" class="LineNr">206 </span> <a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span id="L207" class="LineNr">207 </span><span class="Delimiter">}</span>
<span id="L208" class="LineNr">208 </span>
<span id="L209" class="LineNr">209 </span><span class="Normal">void</span> <a href='011run.cc.html#L209'>parse_word</a><span class="Delimiter">(</span><span class="Normal">const</span> string& data<span class="Delimiter">,</span> word& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L210" class="LineNr">210 </span> out<span class="Delimiter">.</span>original = data<span class="Delimiter">;</span>
<span id="L211" class="LineNr">211 </span> istringstream win<span class="Delimiter">(</span>data<span class="Delimiter">);</span>
<span id="L212" class="LineNr">212 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> out<span class="Delimiter">.</span>data<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L213" class="LineNr">213 </span> string m<span class="Delimiter">;</span>
<span id="L214" class="LineNr">214 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> m<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span>
<span id="L215" class="LineNr">215 </span> out<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>m<span class="Delimiter">);</span>
<span id="L216" class="LineNr">216 </span> <span class="Delimiter">}</span>
<span id="L217" class="LineNr">217 </span><span class="Delimiter">}</span>
<span id="L218" class="LineNr">218 </span>
<span id="L219" class="LineNr">219 </span><span class="Normal">void</span> <a href='011run.cc.html#L219'>sanity_check_program_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L220" class="LineNr">220 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L221" class="LineNr">221 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>start == addr<span class="Delimiter">)</span>
<span id="L222" class="LineNr">222 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"can't have multiple segments starting at address 0x"</span> << HEXWORD << addr << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span id="L223" class="LineNr">223 </span> <span class="Delimiter">}</span>
<span id="L224" class="LineNr">224 </span><span class="Delimiter">}</span>
<span id="L225" class="LineNr">225 </span>
<span id="L226" class="LineNr">226 </span><span class="Comment">// helper for tests</span>
<span id="L227" class="LineNr">227 </span><span class="Normal">void</span> parse<span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L228" class="LineNr">228 </span> program p<span class="Delimiter">;</span>
<span id="L229" class="LineNr">229 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span>
<span id="L230" class="LineNr">230 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span>
<span id="L231" class="LineNr">231 </span><span class="Delimiter">}</span>
<span id="L232" class="LineNr">232 </span>
<span id="L233" class="LineNr">233 </span><span class="Normal">void</span> <a href='011run.cc.html#L233'>test_detect_duplicate_segments</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L234" class="LineNr">234 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L235" class="LineNr">235 </span> parse<span class="Delimiter">(</span>
<span id="L236" class="LineNr">236 </span> <span class="Constant">"== segment1 0xee\n"</span>
<span id="L237" class="LineNr">237 </span> <span class="Constant">"ab\n"</span>
<span id="L238" class="LineNr">238 </span> <span class="Constant">"== segment2 0xee\n"</span>
<span id="L239" class="LineNr">239 </span> <span class="Constant">"cd\n"</span>
<span id="L240" class="LineNr">240 </span> <span class="Delimiter">);</span>
<span id="L241" class="LineNr">241 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L242" class="LineNr">242 </span> <span class="Constant">"error: can't have multiple segments starting at address 0x000000ee\n"</span>
<span id="L243" class="LineNr">243 </span> <span class="Delimiter">);</span>
<span id="L244" class="LineNr">244 </span><span class="Delimiter">}</span>
<span id="L245" class="LineNr">245 </span>
<span id="L246" class="LineNr">246 </span><span class="SalientComment">//:: load</span>
<span id="L247" class="LineNr">247 </span>
<span id="L248" class="LineNr">248 </span><span class="Normal">void</span> <a href='011run.cc.html#L248'>load</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L249" class="LineNr">249 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>find<span class="Delimiter">(</span>p<span class="Delimiter">,</span> <span class="Constant">"code"</span><span class="Delimiter">)</span> == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L250" class="LineNr">250 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"no code to run\n"</span> << end<span class="Delimiter">();</span>
<span id="L251" class="LineNr">251 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L252" class="LineNr">252 </span> <span class="Delimiter">}</span>
<span id="L253" class="LineNr">253 </span> <span class="Comment">// Ensure segments are disjoint.</span>
<span id="L254" class="LineNr">254 </span> set<<span class="Normal">uint32_t</span>> overlap<span class="Delimiter">;</span>
<span id="L255" class="LineNr">255 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L256" class="LineNr">256 </span> <span class="Normal">const</span> segment& seg = p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L257" class="LineNr">257 </span> <span class="Normal">uint32_t</span> addr = seg<span class="Delimiter">.</span>start<span class="Delimiter">;</span>
<span id="L258" class="LineNr">258 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!already_allocated<span class="Delimiter">(</span>addr<span class="Delimiter">))</span>
<span id="L259" class="LineNr">259 </span> <span class="SpecialChar"><a href='010vm.cc.html#L163'>Mem</a></span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span>seg<span class="Delimiter">.</span>start<span class="Delimiter">));</span>
<span id="L260" class="LineNr">260 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"loading segment "</span> << i << <span class="Constant">" from "</span> << <a href='010vm.cc.html#L408'>HEXWORD</a> << addr << end<span class="Delimiter">();</span>
<span id="L261" class="LineNr">261 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>seg<span class="Delimiter">.</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L262" class="LineNr">262 </span> <span class="Normal">const</span> line& l = seg<span class="Delimiter">.</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span>
<span id="L263" class="LineNr">263 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> k = <span class="Constant">0</span><span class="Delimiter">;</span> k < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>l<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++k<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L264" class="LineNr">264 </span> <span class="Normal">const</span> word& w = l<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>k<span class="Delimiter">);</span>
<span id="L265" class="LineNr">265 </span> <span class="Normal">uint8_t</span> val = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L266" class="LineNr">266 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L262'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L267" class="LineNr">267 </span> assert<span class="Delimiter">(</span>overlap<span class="Delimiter">.</span>find<span class="Delimiter">(</span>addr<span class="Delimiter">)</span> == overlap<span class="Delimiter">.</span>end<span class="Delimiter">());</span>
<span id="L268" class="LineNr">268 </span> <a href='010vm.cc.html#L244'>write_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">,</span> val<span class="Delimiter">);</span>
<span id="L269" class="LineNr">269 </span> overlap<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>addr<span class="Delimiter">);</span>
<span id="L270" class="LineNr">270 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"0x"</span> << <a href='010vm.cc.html#L408'>HEXWORD</a> << addr << <span class="Constant">" -> "</span> << <a href='010vm.cc.html#L407'>HEXBYTE</a> << <a href='010vm.cc.html#L410'>NUM</a><span class="Delimiter">(</span><a href='010vm.cc.html#L174'>read_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> << end<span class="Delimiter">();</span>
<span id="L271" class="LineNr">271 </span> ++addr<span class="Delimiter">;</span>
<span id="L272" class="LineNr">272 </span> <span class="Delimiter">}</span>
<span id="L273" class="LineNr">273 </span> <span class="Delimiter">}</span>
<span id="L274" class="LineNr">274 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>seg<span class="Delimiter">.</span><a href='011run.cc.html#L111'>name</a> == <span class="Constant">"code"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L275" class="LineNr">275 </span> <span class="SpecialChar"><a href='010vm.cc.html#L166'>End_of_program</a></span> = addr<span class="Delimiter">;</span>
<span id="L276" class="LineNr">276 </span> <span class="Delimiter">}</span>
<span id="L277" class="LineNr">277 </span> <span class="Delimiter">}</span>
<span id="L278" class="LineNr">278 </span><span class="Delimiter">}</span>
<span id="L279" class="LineNr">279 </span>
<span id="L280" class="LineNr">280 </span><span class="Normal">const</span> segment* find<span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> <span class="Normal">const</span> string& segment_name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L281" class="LineNr">281 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L282" class="LineNr">282 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L111'>name</a> == segment_name<span class="Delimiter">)</span>
<span id="L283" class="LineNr">283 </span> <span class="Identifier">return</span> &p<span class="Delimiter">.</span><a href='011run.cc.html#L106'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L284" class="LineNr">284 </span> <span class="Delimiter">}</span>
<span id="L285" class="LineNr">285 </span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span id="L286" class="LineNr">286 </span><span class="Delimiter">}</span>
<span id="L287" class="LineNr">287 </span>
<span id="L288" class="LineNr">288 </span><span class="Normal">uint8_t</span> <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L289" class="LineNr">289 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L449'>contains_uppercase</a><span class="Delimiter">(</span>s<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L290" class="LineNr">290 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"uppercase hex not allowed: "</span> << s << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span id="L291" class="LineNr">291 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L292" class="LineNr">292 </span> <span class="Delimiter">}</span>
<span id="L293" class="LineNr">293 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
<span id="L294" class="LineNr">294 </span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L295" class="LineNr">295 </span> in >> std::hex >> result<span class="Delimiter">;</span>
<span id="L296" class="LineNr">296 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L297" class="LineNr">297 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"token '"</span> << s << <span class="Constant">"' is not a hex byte\n"</span> << end<span class="Delimiter">();</span>
<span id="L298" class="LineNr">298 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span id="L299" class="LineNr">299 </span> <span class="Delimiter">}</span>
<span id="L300" class="LineNr">300 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result > <span class="Constant">0xff</span> || result < -<span class="Constant">0x8f</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L301" class="LineNr">301 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"token '"</span> << s << <span class="Constant">"' is not a hex byte\n"</span> << end<span class="Delimiter">();</span>
<span id="L302" class="LineNr">302 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span id="L303" class="LineNr">303 </span> <span class="Delimiter">}</span>
<span id="L304" class="LineNr">304 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>><span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span id="L305" class="LineNr">305 </span><span class="Delimiter">}</span>
<span id="L306" class="LineNr">306 </span>
<span id="L307" class="LineNr">307 </span><span class="Normal">void</span> <a href='011run.cc.html#L307'>test_number_too_large</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L308" class="LineNr">308 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L309" class="LineNr">309 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L310" class="LineNr">310 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L311" class="LineNr">311 </span> <span class="Constant">"01 cab\n"</span>
<span id="L312" class="LineNr">312 </span> <span class="Delimiter">);</span>
<span id="L313" class="LineNr">313 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L314" class="LineNr">314 </span> <span class="Constant">"error: token 'cab' is not a hex byte\n"</span>
<span id="L315" class="LineNr">315 </span> <span class="Delimiter">);</span>
<span id="L316" class="LineNr">316 </span><span class="Delimiter">}</span>
<span id="L317" class="LineNr">317 </span>
<span id="L318" class="LineNr">318 </span><span class="Normal">void</span> <a href='011run.cc.html#L318'>test_invalid_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L319" class="LineNr">319 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L320" class="LineNr">320 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L321" class="LineNr">321 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L322" class="LineNr">322 </span> <span class="Constant">"01 cx\n"</span>
<span id="L323" class="LineNr">323 </span> <span class="Delimiter">);</span>
<span id="L324" class="LineNr">324 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L325" class="LineNr">325 </span> <span class="Constant">"error: token 'cx' is not a hex byte\n"</span>
<span id="L326" class="LineNr">326 </span> <span class="Delimiter">);</span>
<span id="L327" class="LineNr">327 </span><span class="Delimiter">}</span>
<span id="L328" class="LineNr">328 </span>
<span id="L329" class="LineNr">329 </span><span class="Normal">void</span> <a href='011run.cc.html#L329'>test_negative_number</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L330" class="LineNr">330 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L331" class="LineNr">331 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L332" class="LineNr">332 </span> <span class="Constant">"01 -02\n"</span>
<span id="L333" class="LineNr">333 </span> <span class="Delimiter">);</span>
<span id="L334" class="LineNr">334 </span> <a href='003trace.cc.html#L294'>CHECK_TRACE_COUNT</a><span class="Delimiter">(</span><span class="Constant">"error"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L335" class="LineNr">335 </span><span class="Delimiter">}</span>
<span id="L336" class="LineNr">336 </span>
<span id="L337" class="LineNr">337 </span><span class="Normal">void</span> <a href='011run.cc.html#L337'>test_negative_number_too_small</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L338" class="LineNr">338 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L339" class="LineNr">339 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L340" class="LineNr">340 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L341" class="LineNr">341 </span> <span class="Constant">"01 -12345\n"</span>
<span id="L342" class="LineNr">342 </span> <span class="Delimiter">);</span>
<span id="L343" class="LineNr">343 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L344" class="LineNr">344 </span> <span class="Constant">"error: token '-12345' is not a hex byte\n"</span>
<span id="L345" class="LineNr">345 </span> <span class="Delimiter">);</span>
<span id="L346" class="LineNr">346 </span><span class="Delimiter">}</span>
<span id="L347" class="LineNr">347 </span>
<span id="L348" class="LineNr">348 </span><span class="Normal">void</span> <a href='011run.cc.html#L348'>test_hex_prefix</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L349" class="LineNr">349 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L350" class="LineNr">350 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L351" class="LineNr">351 </span> <span class="Constant">"0x01 -0x02\n"</span>
<span id="L352" class="LineNr">352 </span> <span class="Delimiter">);</span>
<span id="L353" class="LineNr">353 </span> <a href='003trace.cc.html#L294'>CHECK_TRACE_COUNT</a><span class="Delimiter">(</span><span class="Constant">"error"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L354" class="LineNr">354 </span><span class="Delimiter">}</span>
<span id="L355" class="LineNr">355 </span>
<span id="L356" class="LineNr">356 </span><span class="Normal">void</span> <a href='011run.cc.html#L356'>test_repeated_segment_merges_data</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L357" class="LineNr">357 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L358" class="LineNr">358 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L359" class="LineNr">359 </span> <span class="Constant">"11 22\n"</span>
<span id="L360" class="LineNr">360 </span> <span class="Constant">"== code\n"</span> <span class="Comment">// again</span>
<span id="L361" class="LineNr">361 </span> <span class="Constant">"33 44\n"</span>
<span id="L362" class="LineNr">362 </span> <span class="Delimiter">);</span>
<span id="L363" class="LineNr">363 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L364" class="LineNr">364 </span> <span class="Constant">"parse: new segment 'code'\n"</span>
<span id="L365" class="LineNr">365 </span> <span class="Constant">"parse: appending to segment 'code'\n"</span>
<span id="L366" class="LineNr">366 </span> <span class="Comment">// first segment</span>
<span id="L367" class="LineNr">367 </span> <span class="Constant">"load: 0x00000001 -> 11\n"</span>
<span id="L368" class="LineNr">368 </span> <span class="Constant">"load: 0x00000002 -> 22\n"</span>
<span id="L369" class="LineNr">369 </span> <span class="Comment">// second segment</span>
<span id="L370" class="LineNr">370 </span> <span class="Constant">"load: 0x00000003 -> 33\n"</span>
<span id="L371" class="LineNr">371 </span> <span class="Constant">"load: 0x00000004 -> 44\n"</span>
<span id="L372" class="LineNr">372 </span> <span class="Delimiter">);</span>
<span id="L373" class="LineNr">373 </span><span class="Delimiter">}</span>
<span id="L374" class="LineNr">374 </span>
<span id="L375" class="LineNr">375 </span><span class="Normal">void</span> <a href='011run.cc.html#L375'>test_error_on_missing_segment_header</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L376" class="LineNr">376 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L377" class="LineNr">377 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L378" class="LineNr">378 </span> <span class="Constant">"01 02\n"</span>
<span id="L379" class="LineNr">379 </span> <span class="Delimiter">);</span>
<span id="L380" class="LineNr">380 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L381" class="LineNr">381 </span> <span class="Constant">"error: input does not start with a '==' section header\n"</span>
<span id="L382" class="LineNr">382 </span> <span class="Delimiter">);</span>
<span id="L383" class="LineNr">383 </span><span class="Delimiter">}</span>
<span id="L384" class="LineNr">384 </span>
<span id="L385" class="LineNr">385 </span><span class="Normal">void</span> <a href='011run.cc.html#L385'>test_error_on_uppercase_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L386" class="LineNr">386 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L387" class="LineNr">387 </span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span>
<span id="L388" class="LineNr">388 </span> <span class="Constant">"== code\n"</span>
<span id="L389" class="LineNr">389 </span> <span class="Constant">"01 Ab\n"</span>
<span id="L390" class="LineNr">390 </span> <span class="Delimiter">);</span>
<span id="L391" class="LineNr">391 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L392" class="LineNr">392 </span> <span class="Constant">"error: uppercase hex not allowed: Ab\n"</span>
<span id="L393" class="LineNr">393 </span> <span class="Delimiter">);</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="Comment">//: helper for tests</span>
<span id="L397" class="LineNr">397 </span><span class="Normal">void</span> <a href='011run.cc.html#L397'>parse_and_load</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L398" class="LineNr">398 </span> program p<span class="Delimiter">;</span>
<span id="L399" class="LineNr">399 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span>
<span id="L400" class="LineNr">400 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span>
<span id="L401" class="LineNr">401 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L262'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if any stage raises errors, stop immediately</span>
<span id="L402" class="LineNr">402 </span> <a href='011run.cc.html#L248'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span>
<span id="L403" class="LineNr">403 </span><span class="Delimiter">}</span>
<span id="L404" class="LineNr">404 </span>
<span id="L405" class="LineNr">405 </span><span class="SalientComment">//:: run</span>
<span id="L406" class="LineNr">406 </span>
<span id="L407" class="LineNr">407 </span><span class="Delimiter">:(before "End Initialize Op Names")</span>
<span id="L408" class="LineNr">408 </span><a href='001help.cc.html#L235'>put_new</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L355'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"b8"</span><span class="Delimiter">,</span> <span class="Constant">"copy imm32 to <a href='010vm.cc.html#L10'>EAX</a> (mov)"</span><span class="Delimiter">);</span>
<span id="L409" class="LineNr">409 </span>
<span id="L410" class="LineNr">410 </span><span class="Comment">//: our first opcode</span>
<span id="L411" class="LineNr">411 </span>
<span id="L412" class="LineNr">412 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span>
<span id="L413" class="LineNr">413 </span><span class="Normal">case</span> <span class="Constant">0xb8</span>: <span class="Delimiter">{</span> <span class="Comment">// copy imm32 to EAX</span>
<span id="L414" class="LineNr">414 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span> src = <a href='011run.cc.html#L433'>next32</a><span class="Delimiter">();</span>
<span id="L415" class="LineNr">415 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy imm32 0x"</span> << <a href='010vm.cc.html#L408'>HEXWORD</a> << src << <span class="Constant">" to EAX"</span> << end<span class="Delimiter">();</span>
<span id="L416" class="LineNr">416 </span> <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = src<span class="Delimiter">;</span>
<span id="L417" class="LineNr">417 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L418" class="LineNr">418 </span><span class="Delimiter">}</span>
<span id="L419" class="LineNr">419 </span>
<span id="L420" class="LineNr">420 </span><span class="Delimiter">:(code)</span>
<span id="L421" class="LineNr">421 </span><span class="Normal">void</span> <a href='011run.cc.html#L421'>test_copy_imm32_to_EAX_again</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L422" class="LineNr">422 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L423" class="LineNr">423 </span> <span class="Constant">"== code 0x1\n"</span> <span class="Comment">// code segment</span>
<span id="L424" class="LineNr">424 </span> <span class="Comment">// op ModR/M SIB displacement immediate</span>
<span id="L425" class="LineNr">425 </span> <span class="Constant">" b8 0a 0b 0c 0d \n"</span> <span class="Comment">// copy 0x0d0c0b0a to EAX</span>
<span id="L426" class="LineNr">426 </span> <span class="Delimiter">);</span>
<span id="L427" class="LineNr">427 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L428" class="LineNr">428 </span> <span class="Constant">"run: copy imm32 0x0d0c0b0a to EAX\n"</span>
<span id="L429" class="LineNr">429 </span> <span class="Delimiter">);</span>
<span id="L430" class="LineNr">430 </span><span class="Delimiter">}</span>
<span id="L431" class="LineNr">431 </span>
<span id="L432" class="LineNr">432 </span><span class="Comment">// read a 32-bit int in little-endian order from the instruction stream</span>
<span id="L433" class="LineNr">433 </span><span class="Normal">int32_t</span> <a href='011run.cc.html#L433'>next32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L434" class="LineNr">434 </span> <span class="Normal">int32_t</span> result = <a href='010vm.cc.html#L185'>read_mem_i32</a><span class="Delimiter">(</span><a href='010vm.cc.html#L26'>EIP</a><span class="Delimiter">);</span>
<span id="L435" class="LineNr">435 </span> EIP+=<span class="Constant">4</span><span class="Delimiter">;</span>
<span id="L436" class="LineNr">436 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L437" class="LineNr">437 </span><span class="Delimiter">}</span>
<span id="L438" class="LineNr">438 </span>
<span id="L439" class="LineNr">439 </span><span class="SalientComment">//:: helpers</span>
<span id="L440" class="LineNr">440 </span>
<span id="L441" class="LineNr">441 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L442" class="LineNr">442 </span> ostringstream out<span class="Delimiter">;</span>
<span id="L443" class="LineNr">443 </span> out << w<span class="Delimiter">.</span>data<span class="Delimiter">;</span>
<span id="L444" class="LineNr">444 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span id="L445" class="LineNr">445 </span> out << <span class="Constant">" /"</span> << w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L446" class="LineNr">446 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span id="L447" class="LineNr">447 </span><span class="Delimiter">}</span>
<span id="L448" class="LineNr">448 </span>
<span id="L449" class="LineNr">449 </span><span class="Normal">bool</span> <a href='011run.cc.html#L449'>contains_uppercase</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L450" class="LineNr">450 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span id="L451" class="LineNr">451 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isupper<span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L452" class="LineNr">452 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L453" class="LineNr">453 </span><span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|