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
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
|
<!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 - 032operands.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/main/032operands.cc'>https://github.com/akkartik/mu/blob/main/032operands.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Metadata for fields of an x86 instruction.</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment">//:</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: The x86 instruction set is variable-length, and how a byte is interpreted</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: affects later instruction boundaries. A lot of the pain in programming</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: machine code stems from computer and programmer going out of sync on what</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: a byte means. The miscommunication is usually not immediately caught, and</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: metastasizes at runtime into kilobytes of misinterpreted instructions.</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">//:</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: To mitigate these issues, we'll start programming in terms of logical</span>
<span id="L10" class="LineNr"> 10 </span><span class="Comment">//: arguments rather than physical bytes. Some arguments are smaller than a</span>
<span id="L11" class="LineNr"> 11 </span><span class="Comment">//: byte, and others may consist of multiple bytes. This layer will correctly</span>
<span id="L12" class="LineNr"> 12 </span><span class="Comment">//: pack and order the bytes corresponding to the arguments in an instruction.</span>
<span id="L13" class="LineNr"> 13 </span>
<span id="L14" class="LineNr"> 14 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span>
<span id="L15" class="LineNr"> 15 </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">"instructions"</span><span class="Delimiter">,</span>
<span id="L16" class="LineNr"> 16 </span> <span class="Constant">"Each x86 instruction consists of an instruction or opcode and some number\n"</span>
<span id="L17" class="LineNr"> 17 </span> <span class="Constant">"of arguments.\n"</span>
<span id="L18" class="LineNr"> 18 </span> <span class="Constant">"Each argument has a type. An instruction won't have more than one argument of\n"</span>
<span id="L19" class="LineNr"> 19 </span> <span class="Constant">"any type.\n"</span>
<span id="L20" class="LineNr"> 20 </span> <span class="Constant">"Each instruction has some set of allowed argument types. It'll reject others.\n"</span>
<span id="L21" class="LineNr"> 21 </span> <span class="Constant">"The complete list of argument types: mod, subop, r32 (integer register),\n"</span>
<span id="L22" class="LineNr"> 22 </span> <span class="Constant">"rm32 (integer register or memory), x32 (floating point register),\n"</span>
<span id="L23" class="LineNr"> 23 </span> <span class="Constant">"xm32 (floating point register or memory), scale, index, base, disp8, disp16,\n"</span>
<span id="L24" class="LineNr"> 24 </span> <span class="Constant">"disp32,imm8,imm32.\n"</span>
<span id="L25" class="LineNr"> 25 </span> <span class="Constant">"Each of these has its own help page. Try reading 'bootstrap help mod' next.\n"</span>
<span id="L26" class="LineNr"> 26 </span><span class="Delimiter">);</span>
<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span>
<span id="L28" class="LineNr"> 28 </span>cerr << <span class="Constant">" instructions\n"</span><span class="Delimiter">;</span>
<span id="L29" class="LineNr"> 29 </span>
<span id="L30" class="LineNr"> 30 </span><span class="Delimiter">:(before "Running Test Program")</span>
<span id="L31" class="LineNr"> 31 </span>transform<span class="Delimiter">(</span>p<span class="Delimiter">);</span>
<span id="L32" class="LineNr"> 32 </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="L33" class="LineNr"> 33 </span>
<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">:(code)</span>
<span id="L35" class="LineNr"> 35 </span><span class="Normal">void</span> <a href='032operands.cc.html#L35'>test_pack_immediate_constants</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L36" class="LineNr"> 36 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L37" class="LineNr"> 37 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L38" class="LineNr"> 38 </span> <span class="Constant">"bb 0x2a/imm32\n"</span>
<span id="L39" class="LineNr"> 39 </span> <span class="Delimiter">);</span>
<span id="L40" class="LineNr"> 40 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L41" class="LineNr"> 41 </span> <span class="Constant">"transform: packing instruction 'bb 0x2a/imm32'\n"</span>
<span id="L42" class="LineNr"> 42 </span> <span class="Constant">"transform: instruction after packing: 'bb 2a 00 00 00'\n"</span>
<span id="L43" class="LineNr"> 43 </span> <span class="Constant">"run: copy imm32 0x0000002a to EBX\n"</span>
<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">);</span>
<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span>
<span id="L46" class="LineNr"> 46 </span>
<span id="L47" class="LineNr"> 47 </span><span class="Comment">//: complete set of valid argument types</span>
<span id="L48" class="LineNr"> 48 </span>
<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">:(before "End Globals")</span>
<span id="L50" class="LineNr"> 50 </span>set<string> <span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">;</span>
<span id="L51" class="LineNr"> 51 </span><span class="Delimiter">:(before "End One-time Setup")</span>
<span id="L52" class="LineNr"> 52 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"subop"</span><span class="Delimiter">);</span>
<span id="L53" class="LineNr"> 53 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"mod"</span><span class="Delimiter">);</span>
<span id="L54" class="LineNr"> 54 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"rm32"</span><span class="Delimiter">);</span>
<span id="L55" class="LineNr"> 55 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"xm32"</span><span class="Delimiter">);</span>
<span id="L56" class="LineNr"> 56 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"base"</span><span class="Delimiter">);</span>
<span id="L57" class="LineNr"> 57 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"index"</span><span class="Delimiter">);</span>
<span id="L58" class="LineNr"> 58 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"scale"</span><span class="Delimiter">);</span>
<span id="L59" class="LineNr"> 59 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"r32"</span><span class="Delimiter">);</span>
<span id="L60" class="LineNr"> 60 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"x32"</span><span class="Delimiter">);</span>
<span id="L61" class="LineNr"> 61 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"disp8"</span><span class="Delimiter">);</span>
<span id="L62" class="LineNr"> 62 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"disp16"</span><span class="Delimiter">);</span>
<span id="L63" class="LineNr"> 63 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"disp32"</span><span class="Delimiter">);</span>
<span id="L64" class="LineNr"> 64 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"imm8"</span><span class="Delimiter">);</span>
<span id="L65" class="LineNr"> 65 </span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"imm32"</span><span class="Delimiter">);</span>
<span id="L66" class="LineNr"> 66 </span>
<span id="L67" class="LineNr"> 67 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span>
<span id="L68" class="LineNr"> 68 </span><a href='032operands.cc.html#L70'>init_argument_type_help</a><span class="Delimiter">();</span>
<span id="L69" class="LineNr"> 69 </span><span class="Delimiter">:(code)</span>
<span id="L70" class="LineNr"> 70 </span><span class="Normal">void</span> <a href='032operands.cc.html#L70'>init_argument_type_help</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L71" class="LineNr"> 71 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">,</span>
<span id="L72" class="LineNr"> 72 </span> <span class="Constant">"2-bit argument controlling the _addressing mode_ of many instructions,\n"</span>
<span id="L73" class="LineNr"> 73 </span> <span class="Constant">"to determine how to compute the _effective address_ to look up memory at\n"</span>
<span id="L74" class="LineNr"> 74 </span> <span class="Constant">"based on the 'rm32' argument and potentially others.\n"</span>
<span id="L75" class="LineNr"> 75 </span> <span class="Constant">"\n"</span>
<span id="L76" class="LineNr"> 76 </span> <span class="Constant">"If mod = 3, just operate on the <a href='003trace.cc.html#L117'>contents</a> of the register specified by rm32\n"</span>
<span id="L77" class="LineNr"> 77 </span> <span class="Constant">" (direct mode).\n"</span>
<span id="L78" class="LineNr"> 78 </span> <span class="Constant">"If mod = 2, effective address is usually* rm32 + disp32\n"</span>
<span id="L79" class="LineNr"> 79 </span> <span class="Constant">" (indirect mode with displacement).\n"</span>
<span id="L80" class="LineNr"> 80 </span> <span class="Constant">"If mod = 1, effective address is usually* rm32 + disp8\n"</span>
<span id="L81" class="LineNr"> 81 </span> <span class="Constant">" (indirect mode with displacement).\n"</span>
<span id="L82" class="LineNr"> 82 </span> <span class="Constant">"If mod = 0, effective address is usually* rm32 (indirect mode).\n"</span>
<span id="L83" class="LineNr"> 83 </span> <span class="Constant">"(* - The exception is when rm32 is '4'. Register 4 is the stack pointer (<a href='010vm.cc.html#L14'>ESP</a>).\n"</span>
<span id="L84" class="LineNr"> 84 </span> <span class="Constant">" Using it as an address gets more involved. For more details,\n"</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Constant">" try reading the help pages for 'base', 'index' and 'scale'.)\n"</span>
<span id="L86" class="LineNr"> 86 </span> <span class="Constant">"\n"</span>
<span id="L87" class="LineNr"> 87 </span> <span class="Constant">"For complete details, spend some time with two tables in the IA-32 software\n"</span>
<span id="L88" class="LineNr"> 88 </span> <span class="Constant">"developer's manual that are also included in this repo:\n"</span>
<span id="L89" class="LineNr"> 89 </span> <span class="Constant">" - modrm.pdf: volume 2, table 2-2, \"</span><span class="Constant">32</span>-bit addressing with the ModR/<span class="SpecialChar">M</span> byte<span class="Delimiter">.</span>\<span class="Constant">".\n"</span>
<span id="L90" class="LineNr"> 90 </span> <span class="Constant">" - sib.pdf: volume 2, table 2-3, \"</span><span class="Constant">32</span>-bit addressing with the SIB byte<span class="Delimiter">.</span>\<span class="Constant">".\n"</span>
<span id="L91" class="LineNr"> 91 </span> <span class="Delimiter">);</span>
<span id="L92" class="LineNr"> 92 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">,</span>
<span id="L93" class="LineNr"> 93 </span> <span class="Constant">"Additional 3-bit argument for determining the instruction when the opcode\n"</span>
<span id="L94" class="LineNr"> 94 </span> <span class="Constant">"is 81, 8f, d3, f7 or ff.\n"</span>
<span id="L95" class="LineNr"> 95 </span> <span class="Constant">"Can't coexist with argument of type 'r32' in a single instruction, because\n"</span>
<span id="L96" class="LineNr"> 96 </span> <span class="Constant">"the two use the same bits.\n"</span>
<span id="L97" class="LineNr"> 97 </span> <span class="Delimiter">);</span>
<span id="L98" class="LineNr"> 98 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">,</span>
<span id="L99" class="LineNr"> 99 </span> <span class="Constant">"3-bit argument specifying an integer register argument used directly,\n"</span>
<span id="L100" class="LineNr">100 </span> <span class="Constant">"without any further addressing modes.\n"</span>
<span id="L101" class="LineNr">101 </span> <span class="Delimiter">);</span>
<span id="L102" class="LineNr">102 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"x32"</span><span class="Delimiter">,</span>
<span id="L103" class="LineNr">103 </span> <span class="Constant">"3-bit argument specifying a floating-point register argument used directly,\n"</span>
<span id="L104" class="LineNr">104 </span> <span class="Constant">"without any further addressing modes.\n"</span>
<span id="L105" class="LineNr">105 </span> <span class="Delimiter">);</span>
<span id="L106" class="LineNr">106 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">,</span>
<span id="L107" class="LineNr">107 </span> <span class="Constant">"32-bit value in an integer register or memory. The precise details of its\n"</span>
<span id="L108" class="LineNr">108 </span> <span class="Constant">"construction depend on the eponymous 3-bit 'rm32' argument, the 'mod' argument,\n"</span>
<span id="L109" class="LineNr">109 </span> <span class="Constant">"and also potentially the 'SIB' arguments ('scale', 'index' and 'base')\n"</span>
<span id="L110" class="LineNr">110 </span> <span class="Constant">"and a displacement ('disp8' or 'disp32').\n"</span>
<span id="L111" class="LineNr">111 </span> <span class="Constant">"\n"</span>
<span id="L112" class="LineNr">112 </span> <span class="Constant">"For complete details, spend some time with two tables in the IA-32 software\n"</span>
<span id="L113" class="LineNr">113 </span> <span class="Constant">"developer's manual that are also included in this repo:\n"</span>
<span id="L114" class="LineNr">114 </span> <span class="Constant">" - modrm.pdf: volume 2, table 2-2, \"</span><span class="Constant">32</span>-bit addressing with the ModR/<span class="SpecialChar">M</span> byte<span class="Delimiter">.</span>\<span class="Constant">".\n"</span>
<span id="L115" class="LineNr">115 </span> <span class="Constant">" - sib.pdf: volume 2, table 2-3, \"</span><span class="Constant">32</span>-bit addressing with the SIB byte<span class="Delimiter">.</span>\<span class="Constant">".\n"</span>
<span id="L116" class="LineNr">116 </span> <span class="Delimiter">);</span>
<span id="L117" class="LineNr">117 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"xm32"</span><span class="Delimiter">,</span>
<span id="L118" class="LineNr">118 </span> <span class="Constant">"32-bit value in a floating-point register or memory. The precise details of its\n"</span>
<span id="L119" class="LineNr">119 </span> <span class="Constant">"construction depend on the eponymous 3-bit 'xm32' argument, the 'mod' argument,\n"</span>
<span id="L120" class="LineNr">120 </span> <span class="Constant">"and also potentially the 'SIB' arguments ('scale', 'index' and 'base')\n"</span>
<span id="L121" class="LineNr">121 </span> <span class="Constant">"and a displacement ('disp8' or 'disp32').\n"</span>
<span id="L122" class="LineNr">122 </span> <span class="Constant">"\n"</span>
<span id="L123" class="LineNr">123 </span> <span class="Constant">"For complete details, spend some time with two tables in the IA-32 software\n"</span>
<span id="L124" class="LineNr">124 </span> <span class="Constant">"developer's manual that are also included in this repo:\n"</span>
<span id="L125" class="LineNr">125 </span> <span class="Constant">" - modrm.pdf: volume 2, table 2-2, \"</span><span class="Constant">32</span>-bit addressing with the ModR/<span class="SpecialChar">M</span> byte<span class="Delimiter">.</span>\<span class="Constant">".\n"</span>
<span id="L126" class="LineNr">126 </span> <span class="Constant">" - sib.pdf: volume 2, table 2-3, \"</span><span class="Constant">32</span>-bit addressing with the SIB byte<span class="Delimiter">.</span>\<span class="Constant">".\n"</span>
<span id="L127" class="LineNr">127 </span> <span class="Constant">"\n"</span>
<span id="L128" class="LineNr">128 </span> <span class="Constant">"One subtlety here: while /xm32 refers to floating-point registers in direct mode\n"</span>
<span id="L129" class="LineNr">129 </span> <span class="Constant">"(when /mod is 3), other addressing modes to construct memory addresses use integer registers\n"</span>
<span id="L130" class="LineNr">130 </span> <span class="Constant">"(just like /rm32). Other than direct mode, its behavior is identical to /rm32.\n"</span>
<span id="L131" class="LineNr">131 </span> <span class="Delimiter">);</span>
<span id="L132" class="LineNr">132 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">,</span>
<span id="L133" class="LineNr">133 </span> <span class="Constant">"Additional 3-bit argument (when 'rm32' is 4, unless 'mod' is 3) specifying the\n"</span>
<span id="L134" class="LineNr">134 </span> <span class="Constant">"register containing an address to look up.\n"</span>
<span id="L135" class="LineNr">135 </span> <span class="Constant">"This address may be further modified by 'index' and 'scale' arguments.\n"</span>
<span id="L136" class="LineNr">136 </span> <span class="Constant">" effective address = base + index*scale + displacement (disp8 or <a href='040tests.cc.html#L82'>disp32</a>)\n"</span>
<span id="L137" class="LineNr">137 </span> <span class="Constant">"For complete details, spend some time with the IA-32 software developer's manual,\n"</span>
<span id="L138" class="LineNr">138 </span> <span class="Constant">"volume 2, table 2-3, \"</span><span class="Constant">32</span>-bit addressing with the SIB byte\<span class="Constant">".\n"</span>
<span id="L139" class="LineNr">139 </span> <span class="Constant">"It is included in this repository as 'sib.pdf'.\n"</span>
<span id="L140" class="LineNr">140 </span> <span class="Delimiter">);</span>
<span id="L141" class="LineNr">141 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">,</span>
<span id="L142" class="LineNr">142 </span> <span class="Constant">"Optional 3-bit argument (when 'rm32' is 4 unless 'mod' is 3) that can be added to\n"</span>
<span id="L143" class="LineNr">143 </span> <span class="Constant">"the 'base' argument to compute the 'effective address' at which to look up memory.\n"</span>
<span id="L144" class="LineNr">144 </span> <span class="Constant">" effective address = base + index*scale + displacement (disp8 or <a href='040tests.cc.html#L82'>disp32</a>)\n"</span>
<span id="L145" class="LineNr">145 </span> <span class="Constant">"For complete details, spend some time with the IA-32 software developer's manual,\n"</span>
<span id="L146" class="LineNr">146 </span> <span class="Constant">"volume 2, table 2-3, \"</span><span class="Constant">32</span>-bit addressing with the SIB byte\<span class="Constant">".\n"</span>
<span id="L147" class="LineNr">147 </span> <span class="Constant">"It is included in this repository as 'sib.pdf'.\n"</span>
<span id="L148" class="LineNr">148 </span> <span class="Delimiter">);</span>
<span id="L149" class="LineNr">149 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"scale"</span><span class="Delimiter">,</span>
<span id="L150" class="LineNr">150 </span> <span class="Constant">"Optional 2-bit argument (when 'rm32' is 4 unless 'mod' is 3) that encodes a\n"</span>
<span id="L151" class="LineNr">151 </span> <span class="Constant">"power of 2 to be multiplied to the 'index' argument before adding the result to\n"</span>
<span id="L152" class="LineNr">152 </span> <span class="Constant">"the 'base' argument to compute the _effective address_ to operate on.\n"</span>
<span id="L153" class="LineNr">153 </span> <span class="Constant">" effective address = base + index * scale + displacement (disp8 or <a href='040tests.cc.html#L82'>disp32</a>)\n"</span>
<span id="L154" class="LineNr">154 </span> <span class="Constant">"\n"</span>
<span id="L155" class="LineNr">155 </span> <span class="Constant">"When scale is 0, use index unmodified.\n"</span>
<span id="L156" class="LineNr">156 </span> <span class="Constant">"When scale is 1, multiply index by 2.\n"</span>
<span id="L157" class="LineNr">157 </span> <span class="Constant">"When scale is 2, multiply index by 4.\n"</span>
<span id="L158" class="LineNr">158 </span> <span class="Constant">"When scale is 3, multiply index by 8.\n"</span>
<span id="L159" class="LineNr">159 </span> <span class="Constant">"\n"</span>
<span id="L160" class="LineNr">160 </span> <span class="Constant">"For complete details, spend some time with the IA-32 software developer's manual,\n"</span>
<span id="L161" class="LineNr">161 </span> <span class="Constant">"volume 2, table 2-3, \"</span><span class="Constant">32</span>-bit addressing with the SIB byte\<span class="Constant">".\n"</span>
<span id="L162" class="LineNr">162 </span> <span class="Constant">"It is included in this repository as 'sib.pdf'.\n"</span>
<span id="L163" class="LineNr">163 </span> <span class="Delimiter">);</span>
<span id="L164" class="LineNr">164 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">,</span>
<span id="L165" class="LineNr">165 </span> <span class="Constant">"8-bit value to be added in many instructions.\n"</span>
<span id="L166" class="LineNr">166 </span> <span class="Delimiter">);</span>
<span id="L167" class="LineNr">167 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">,</span>
<span id="L168" class="LineNr">168 </span> <span class="Constant">"16-bit value to be added in many instructions.\n"</span>
<span id="L169" class="LineNr">169 </span> <span class="Constant">"Currently not used in any SubX instructions.\n"</span>
<span id="L170" class="LineNr">170 </span> <span class="Delimiter">);</span>
<span id="L171" class="LineNr">171 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">,</span>
<span id="L172" class="LineNr">172 </span> <span class="Constant">"32-bit value to be added in many instructions.\n"</span>
<span id="L173" class="LineNr">173 </span> <span class="Delimiter">);</span>
<span id="L174" class="LineNr">174 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"imm8"</span><span class="Delimiter">,</span>
<span id="L175" class="LineNr">175 </span> <span class="Constant">"8-bit value for many instructions.\n"</span>
<span id="L176" class="LineNr">176 </span> <span class="Delimiter">);</span>
<span id="L177" class="LineNr">177 </span> <a href='001help.cc.html#L225'>put</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='001help.cc.html#L53'>Help</a></span><span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">,</span>
<span id="L178" class="LineNr">178 </span> <span class="Constant">"32-bit value for many instructions.\n"</span>
<span id="L179" class="LineNr">179 </span> <span class="Delimiter">);</span>
<span id="L180" class="LineNr">180 </span><span class="Delimiter">}</span>
<span id="L181" class="LineNr">181 </span>
<span id="L182" class="LineNr">182 </span><span class="SalientComment">//:: transform packing arguments into bytes in the right order</span>
<span id="L183" class="LineNr">183 </span>
<span id="L184" class="LineNr">184 </span><span class="Delimiter">:(after "Begin Transforms")</span>
<span id="L185" class="LineNr">185 </span><span class="SpecialChar"><a href='031transforms.cc.html#L4'>Transform</a></span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pack_arguments<span class="Delimiter">);</span>
<span id="L186" class="LineNr">186 </span>
<span id="L187" class="LineNr">187 </span><span class="Delimiter">:(code)</span>
<span id="L188" class="LineNr">188 </span><span class="Normal">void</span> pack_arguments<span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L189" class="LineNr">189 </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>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L190" class="LineNr">190 </span> segment& code = *find<span class="Delimiter">(</span>p<span class="Delimiter">,</span> <span class="Constant">"code"</span><span class="Delimiter">);</span>
<span id="L191" class="LineNr">191 </span> <span class="Comment">// Pack Operands(segment code)</span>
<span id="L192" class="LineNr">192 </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">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- pack arguments"</span> << end<span class="Delimiter">();</span>
<span id="L193" class="LineNr">193 </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>code<span class="Delimiter">.</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L194" class="LineNr">194 </span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L113'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L195" class="LineNr">195 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='032operands.cc.html#L531'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L196" class="LineNr">196 </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">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"packing instruction '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">with metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span>
<span id="L197" class="LineNr">197 </span> pack_arguments<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span id="L198" class="LineNr">198 </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">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after packing: '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">without metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">.</span>words<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << end<span class="Delimiter">();</span>
<span id="L199" class="LineNr">199 </span> <span class="Delimiter">}</span>
<span id="L200" class="LineNr">200 </span><span class="Delimiter">}</span>
<span id="L201" class="LineNr">201 </span>
<span id="L202" class="LineNr">202 </span><span class="Normal">void</span> pack_arguments<span class="Delimiter">(</span>line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L203" class="LineNr">203 </span> <a href='011run.cc.html#L121'>line</a> new_inst<span class="Delimiter">;</span>
<span id="L204" class="LineNr">204 </span> <a href='032operands.cc.html#L212'>add_opcodes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span>
<span id="L205" class="LineNr">205 </span> <a href='032operands.cc.html#L222'>add_modrm_byte</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span>
<span id="L206" class="LineNr">206 </span> <a href='032operands.cc.html#L256'>add_sib_byte</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span>
<span id="L207" class="LineNr">207 </span> <a href='032operands.cc.html#L278'>add_disp_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span>
<span id="L208" class="LineNr">208 </span> <a href='032operands.cc.html#L290'>add_imm_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span>
<span id="L209" class="LineNr">209 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span>
<span id="L210" class="LineNr">210 </span><span class="Delimiter">}</span>
<span id="L211" class="LineNr">211 </span>
<span id="L212" class="LineNr">212 </span><span class="Normal">void</span> <a href='032operands.cc.html#L212'>add_opcodes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L213" class="LineNr">213 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L214" class="LineNr">214 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f2"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f3"</span><span class="Delimiter">)</span>
<span id="L215" class="LineNr">215 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span id="L216" class="LineNr">216 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f3"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span>
<span id="L217" class="LineNr">217 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</span>
<span id="L218" class="LineNr">218 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data == <span class="Constant">"f2"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>data == <span class="Constant">"0f"</span><span class="Delimiter">)</span>
<span id="L219" class="LineNr">219 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</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="Normal">void</span> <a href='032operands.cc.html#L222'>add_modrm_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L223" class="LineNr">223 </span> <span class="Normal">uint8_t</span> mod=<span class="Constant">0</span><span class="Delimiter">,</span> reg_subop=<span class="Constant">0</span><span class="Delimiter">,</span> rm32=<span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L224" class="LineNr">224 </span> <span class="Normal">bool</span> emit = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L225" class="LineNr">225 </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>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L226" class="LineNr">226 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L227" class="LineNr">227 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L228" class="LineNr">228 </span> mod = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L229" class="LineNr">229 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L230" class="LineNr">230 </span> <span class="Delimiter">}</span>
<span id="L231" class="LineNr">231 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L232" class="LineNr">232 </span> rm32 = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L233" class="LineNr">233 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L234" class="LineNr">234 </span> <span class="Delimiter">}</span>
<span id="L235" class="LineNr">235 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L236" class="LineNr">236 </span> reg_subop = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L237" class="LineNr">237 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L238" class="LineNr">238 </span> <span class="Delimiter">}</span>
<span id="L239" class="LineNr">239 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"xm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L240" class="LineNr">240 </span> rm32 = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L241" class="LineNr">241 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L242" class="LineNr">242 </span> <span class="Delimiter">}</span>
<span id="L243" class="LineNr">243 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"x32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L244" class="LineNr">244 </span> reg_subop = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L245" class="LineNr">245 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L246" class="LineNr">246 </span> <span class="Delimiter">}</span>
<span id="L247" class="LineNr">247 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L248" class="LineNr">248 </span> reg_subop = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L249" class="LineNr">249 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L250" class="LineNr">250 </span> <span class="Delimiter">}</span>
<span id="L251" class="LineNr">251 </span> <span class="Delimiter">}</span>
<span id="L252" class="LineNr">252 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span>
<span id="L253" class="LineNr">253 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='032operands.cc.html#L320'>hex_byte_text</a><span class="Delimiter">((</span>mod << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>reg_subop << <span class="Constant">3</span><span class="Delimiter">)</span> | rm32<span class="Delimiter">));</span>
<span id="L254" class="LineNr">254 </span><span class="Delimiter">}</span>
<span id="L255" class="LineNr">255 </span>
<span id="L256" class="LineNr">256 </span><span class="Normal">void</span> <a href='032operands.cc.html#L256'>add_sib_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L257" class="LineNr">257 </span> <span class="Normal">uint8_t</span> scale=<span class="Constant">0</span><span class="Delimiter">,</span> index=<span class="Constant">0</span><span class="Delimiter">,</span> base=<span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L258" class="LineNr">258 </span> <span class="Normal">bool</span> emit = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L259" class="LineNr">259 </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>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L260" class="LineNr">260 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L261" class="LineNr">261 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"scale"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L262" class="LineNr">262 </span> scale = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L263" class="LineNr">263 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L264" class="LineNr">264 </span> <span class="Delimiter">}</span>
<span id="L265" class="LineNr">265 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L266" class="LineNr">266 </span> index = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L267" class="LineNr">267 </span> emit = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L268" class="LineNr">268 </span> <span class="Delimiter">}</span>
<span id="L269" class="LineNr">269 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L270" class="LineNr">270 </span> base = <a href='011run.cc.html#L288'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L271" class="LineNr">271 </span> emit = <span class="Constant">true</span><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>emit<span class="Delimiter">)</span>
<span id="L275" class="LineNr">275 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='032operands.cc.html#L320'>hex_byte_text</a><span class="Delimiter">((</span>scale << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>index << <span class="Constant">3</span><span class="Delimiter">)</span> | base<span class="Delimiter">));</span>
<span id="L276" class="LineNr">276 </span><span class="Delimiter">}</span>
<span id="L277" class="LineNr">277 </span>
<span id="L278" class="LineNr">278 </span><span class="Normal">void</span> <a href='032operands.cc.html#L278'>add_disp_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L279" class="LineNr">279 </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>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L280" class="LineNr">280 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L281" class="LineNr">281 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">))</span>
<span id="L282" class="LineNr">282 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L283" class="LineNr">283 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">))</span>
<span id="L284" class="LineNr">284 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">);</span>
<span id="L285" class="LineNr">285 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">))</span>
<span id="L286" class="LineNr">286 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span>
<span id="L287" class="LineNr">287 </span> <span class="Delimiter">}</span>
<span id="L288" class="LineNr">288 </span><span class="Delimiter">}</span>
<span id="L289" class="LineNr">289 </span>
<span id="L290" class="LineNr">290 </span><span class="Normal">void</span> <a href='032operands.cc.html#L290'>add_imm_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L291" class="LineNr">291 </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>in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L292" class="LineNr">292 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L293" class="LineNr">293 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm8"</span><span class="Delimiter">))</span>
<span id="L294" class="LineNr">294 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L295" class="LineNr">295 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span>
<span id="L296" class="LineNr">296 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span>
<span id="L297" class="LineNr">297 </span> <span class="Delimiter">}</span>
<span id="L298" class="LineNr">298 </span><span class="Delimiter">}</span>
<span id="L299" class="LineNr">299 </span>
<span id="L300" class="LineNr">300 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L301" class="LineNr">301 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span>
<span id="L302" class="LineNr">302 </span> <span class="Normal">bool</span> is_number = <a href='032operands.cc.html#L591'>looks_like_hex_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">);</span>
<span id="L303" class="LineNr">303 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>num == <span class="Constant">1</span> || !is_number<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L304" class="LineNr">304 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>w<span class="Delimiter">);</span> <span class="Comment">// preserve existing metadata</span>
<span id="L305" class="LineNr">305 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_number<span class="Delimiter">)</span>
<span id="L306" class="LineNr">306 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span>data = <a href='032operands.cc.html#L327'>hex_byte_to_string</a><span class="Delimiter">(</span><a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">));</span>
<span id="L307" class="LineNr">307 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L308" class="LineNr">308 </span> <span class="Delimiter">}</span>
<span id="L309" class="LineNr">309 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>data<span class="Delimiter">)),</span> num<span class="Delimiter">);</span>
<span id="L310" class="LineNr">310 </span><span class="Delimiter">}</span>
<span id="L311" class="LineNr">311 </span>
<span id="L312" class="LineNr">312 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L313" class="LineNr">313 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span>
<span id="L314" class="LineNr">314 </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 < num<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L315" class="LineNr">315 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='032operands.cc.html#L320'>hex_byte_text</a><span class="Delimiter">(</span>val & <span class="Constant">0xff</span><span class="Delimiter">));</span>
<span id="L316" class="LineNr">316 </span> val = val >> <span class="Constant">8</span><span class="Delimiter">;</span>
<span id="L317" class="LineNr">317 </span> <span class="Delimiter">}</span>
<span id="L318" class="LineNr">318 </span><span class="Delimiter">}</span>
<span id="L319" class="LineNr">319 </span>
<span id="L320" class="LineNr">320 </span><a href='011run.cc.html#L127'>word</a> <a href='032operands.cc.html#L320'>hex_byte_text</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L321" class="LineNr">321 </span> <a href='011run.cc.html#L127'>word</a> result<span class="Delimiter">;</span>
<span id="L322" class="LineNr">322 </span> result<span class="Delimiter">.</span>data = <a href='032operands.cc.html#L327'>hex_byte_to_string</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span>
<span id="L323" class="LineNr">323 </span> result<span class="Delimiter">.</span>original = result<span class="Delimiter">.</span>data+<span class="Constant">"/auto"</span><span class="Delimiter">;</span>
<span id="L324" class="LineNr">324 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L325" class="LineNr">325 </span><span class="Delimiter">}</span>
<span id="L326" class="LineNr">326 </span>
<span id="L327" class="LineNr">327 </span>string <a href='032operands.cc.html#L327'>hex_byte_to_string</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L328" class="LineNr">328 </span> ostringstream out<span class="Delimiter">;</span>
<span id="L329" class="LineNr">329 </span> <span class="Comment">// uint8_t prints without padding, but int8_t will expand to 32 bits again</span>
<span id="L330" class="LineNr">330 </span> out << <a href='010vm.cc.html#L407'>HEXBYTE</a> << <a href='010vm.cc.html#L410'>NUM</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span>
<span id="L331" class="LineNr">331 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span id="L332" class="LineNr">332 </span><span class="Delimiter">}</span>
<span id="L333" class="LineNr">333 </span>
<span id="L334" class="LineNr">334 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> vector<word>& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L335" class="LineNr">335 </span> ostringstream out<span class="Delimiter">;</span>
<span id="L336" class="LineNr">336 </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>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L337" class="LineNr">337 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span>
<span id="L338" class="LineNr">338 </span> out << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>data<span class="Delimiter">;</span>
<span id="L339" class="LineNr">339 </span> <span class="Delimiter">}</span>
<span id="L340" class="LineNr">340 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<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="Delimiter">:(before "End Unit Tests")</span>
<span id="L344" class="LineNr">344 </span><span class="Normal">void</span> <a href='032operands.cc.html#L344'>test_preserve_metadata_when_emitting_single_byte</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L345" class="LineNr">345 </span> <a href='011run.cc.html#L127'>word</a> in<span class="Delimiter">;</span>
<span id="L346" class="LineNr">346 </span> in<span class="Delimiter">.</span>data = <span class="Constant">"f0"</span><span class="Delimiter">;</span>
<span id="L347" class="LineNr">347 </span> in<span class="Delimiter">.</span>original = <span class="Constant">"f0/foo"</span><span class="Delimiter">;</span>
<span id="L348" class="LineNr">348 </span> <a href='011run.cc.html#L121'>line</a> out<span class="Delimiter">;</span>
<span id="L349" class="LineNr">349 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> in<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L350" class="LineNr">350 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>data<span class="Delimiter">,</span> <span class="Constant">"f0"</span><span class="Delimiter">);</span>
<span id="L351" class="LineNr">351 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original<span class="Delimiter">,</span> <span class="Constant">"f0/foo"</span><span class="Delimiter">);</span>
<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="Delimiter">:(code)</span>
<span id="L355" class="LineNr">355 </span><span class="Normal">void</span> <a href='032operands.cc.html#L355'>test_pack_disp8</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L356" class="LineNr">356 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L357" class="LineNr">357 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L358" class="LineNr">358 </span> <span class="Constant">"74 2/disp8\n"</span> <span class="Comment">// jump 2 bytes away if ZF is set</span>
<span id="L359" class="LineNr">359 </span> <span class="Delimiter">);</span>
<span id="L360" class="LineNr">360 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L361" class="LineNr">361 </span> <span class="Constant">"transform: packing instruction '74 2/disp8'\n"</span>
<span id="L362" class="LineNr">362 </span> <span class="Constant">"transform: instruction after packing: '74 02'\n"</span>
<span id="L363" class="LineNr">363 </span> <span class="Delimiter">);</span>
<span id="L364" class="LineNr">364 </span><span class="Delimiter">}</span>
<span id="L365" class="LineNr">365 </span>
<span id="L366" class="LineNr">366 </span><span class="Normal">void</span> <a href='032operands.cc.html#L366'>test_pack_disp8_negative</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L367" class="LineNr">367 </span> transform<span class="Delimiter">(</span>
<span id="L368" class="LineNr">368 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L369" class="LineNr">369 </span> <span class="Comment">// running this will cause an infinite loop</span>
<span id="L370" class="LineNr">370 </span> <span class="Constant">"74 -1/disp8\n"</span> <span class="Comment">// jump 1 byte before if ZF is set</span>
<span id="L371" class="LineNr">371 </span> <span class="Delimiter">);</span>
<span id="L372" class="LineNr">372 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L373" class="LineNr">373 </span> <span class="Constant">"transform: packing instruction '74 -1/disp8'\n"</span>
<span id="L374" class="LineNr">374 </span> <span class="Constant">"transform: instruction after packing: '74 ff'\n"</span>
<span id="L375" class="LineNr">375 </span> <span class="Delimiter">);</span>
<span id="L376" class="LineNr">376 </span><span class="Delimiter">}</span>
<span id="L377" class="LineNr">377 </span>
<span id="L378" class="LineNr">378 </span><span class="Normal">void</span> <a href='032operands.cc.html#L378'>test_pack_rm32_direct</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L379" class="LineNr">379 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L380" class="LineNr">380 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L381" class="LineNr">381 </span> <span class="Comment">// instruction effective address operand displacement immediate\n"</span>
<span id="L382" class="LineNr">382 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n"</span>
<span id="L383" class="LineNr">383 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n"</span>
<span id="L384" class="LineNr">384 </span> <span class="Constant">" 01 3/mod/direct 3/rm32/ebx 0/r32/eax \n"</span> <span class="Comment">// add EAX to EBX</span>
<span id="L385" class="LineNr">385 </span> <span class="Delimiter">);</span>
<span id="L386" class="LineNr">386 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L387" class="LineNr">387 </span> <span class="Constant">"transform: packing instruction '01 3/mod/direct 3/rm32/ebx 0/r32/eax'\n"</span>
<span id="L388" class="LineNr">388 </span> <span class="Constant">"transform: instruction after packing: '01 c3'\n"</span>
<span id="L389" class="LineNr">389 </span> <span class="Delimiter">);</span>
<span id="L390" class="LineNr">390 </span><span class="Delimiter">}</span>
<span id="L391" class="LineNr">391 </span>
<span id="L392" class="LineNr">392 </span><span class="Normal">void</span> <a href='032operands.cc.html#L392'>test_pack_rm32_indirect</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L393" class="LineNr">393 </span> transform<span class="Delimiter">(</span>
<span id="L394" class="LineNr">394 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L395" class="LineNr">395 </span> <span class="Comment">// instruction effective address operand displacement immediate\n"</span>
<span id="L396" class="LineNr">396 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n"</span>
<span id="L397" class="LineNr">397 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n"</span>
<span id="L398" class="LineNr">398 </span> <span class="Constant">" 01 0/mod/indirect 3/rm32/ebx 0/r32/eax \n"</span> <span class="Comment">// add EAX to *EBX</span>
<span id="L399" class="LineNr">399 </span> <span class="Delimiter">);</span>
<span id="L400" class="LineNr">400 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L401" class="LineNr">401 </span> <span class="Constant">"transform: packing instruction '01 0/mod/indirect 3/rm32/ebx 0/r32/eax'\n"</span>
<span id="L402" class="LineNr">402 </span> <span class="Constant">"transform: instruction after packing: '01 03'\n"</span>
<span id="L403" class="LineNr">403 </span> <span class="Delimiter">);</span>
<span id="L404" class="LineNr">404 </span><span class="Delimiter">}</span>
<span id="L405" class="LineNr">405 </span>
<span id="L406" class="LineNr">406 </span><span class="Normal">void</span> <a href='032operands.cc.html#L406'>test_pack_x32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L407" class="LineNr">407 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L408" class="LineNr">408 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L409" class="LineNr">409 </span> <span class="Comment">// instruction effective address operand displacement immediate\n"</span>
<span id="L410" class="LineNr">410 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n"</span>
<span id="L411" class="LineNr">411 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n"</span>
<span id="L412" class="LineNr">412 </span> <span class="Constant">" f3 0f 2a 3/mod/direct 3/rm32/ebx 1/x32 \n"</span> <span class="Comment">// convert EBX to XMM1</span>
<span id="L413" class="LineNr">413 </span> <span class="Delimiter">);</span>
<span id="L414" class="LineNr">414 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L415" class="LineNr">415 </span> <span class="Constant">"transform: packing instruction 'f3 0f 2a 3/mod/direct 3/rm32/ebx 1/x32'\n"</span>
<span id="L416" class="LineNr">416 </span> <span class="Constant">"transform: instruction after packing: 'f3 0f 2a cb'\n"</span>
<span id="L417" class="LineNr">417 </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="Normal">void</span> <a href='032operands.cc.html#L420'>test_pack_xm32_direct</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L421" class="LineNr">421 </span> transform<span class="Delimiter">(</span>
<span id="L422" class="LineNr">422 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L423" class="LineNr">423 </span> <span class="Comment">// instruction effective address operand displacement immediate\n"</span>
<span id="L424" class="LineNr">424 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n"</span>
<span id="L425" class="LineNr">425 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n"</span>
<span id="L426" class="LineNr">426 </span> <span class="Constant">" f3 0f 5e 3/mod/direct 3/xm32 1/x32 \n"</span> <span class="Comment">// divide XMM1 by XMM3</span>
<span id="L427" class="LineNr">427 </span> <span class="Delimiter">);</span>
<span id="L428" class="LineNr">428 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L429" class="LineNr">429 </span> <span class="Constant">"transform: packing instruction 'f3 0f 5e 3/mod/direct 3/xm32 1/x32'\n"</span>
<span id="L430" class="LineNr">430 </span> <span class="Constant">"transform: instruction after packing: 'f3 0f 5e cb'\n"</span>
<span id="L431" class="LineNr">431 </span> <span class="Delimiter">);</span>
<span id="L432" class="LineNr">432 </span><span class="Delimiter">}</span>
<span id="L433" class="LineNr">433 </span>
<span id="L434" class="LineNr">434 </span><span class="Normal">void</span> <a href='032operands.cc.html#L434'>test_pack_xm32_indirect</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L435" class="LineNr">435 </span> transform<span class="Delimiter">(</span>
<span id="L436" class="LineNr">436 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L437" class="LineNr">437 </span> <span class="Comment">// instruction effective address operand displacement immediate\n"</span>
<span id="L438" class="LineNr">438 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n"</span>
<span id="L439" class="LineNr">439 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n"</span>
<span id="L440" class="LineNr">440 </span> <span class="Constant">" f3 0f 5e 0/mod/indirect 3/rm32/ebx 1/x32 \n"</span> <span class="Comment">// divide XMM1 by *EBX</span>
<span id="L441" class="LineNr">441 </span> <span class="Delimiter">);</span>
<span id="L442" class="LineNr">442 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L443" class="LineNr">443 </span> <span class="Constant">"transform: packing instruction 'f3 0f 5e 0/mod/indirect 3/rm32/ebx 1/x32'\n"</span>
<span id="L444" class="LineNr">444 </span> <span class="Constant">"transform: instruction after packing: 'f3 0f 5e 0b'\n"</span>
<span id="L445" class="LineNr">445 </span> <span class="Delimiter">);</span>
<span id="L446" class="LineNr">446 </span><span class="Delimiter">}</span>
<span id="L447" class="LineNr">447 </span>
<span id="L448" class="LineNr">448 </span><span class="Comment">//: helper for scenario</span>
<span id="L449" class="LineNr">449 </span><span class="Normal">void</span> transform<span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L450" class="LineNr">450 </span> program p<span class="Delimiter">;</span>
<span id="L451" class="LineNr">451 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span>
<span id="L452" class="LineNr">452 </span> parse<span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span>
<span id="L453" class="LineNr">453 </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="L454" class="LineNr">454 </span> transform<span class="Delimiter">(</span>p<span class="Delimiter">);</span>
<span id="L455" class="LineNr">455 </span><span class="Delimiter">}</span>
<span id="L456" class="LineNr">456 </span>
<span id="L457" class="LineNr">457 </span><span class="Normal">void</span> <a href='032operands.cc.html#L457'>test_pack_modrm_imm32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L458" class="LineNr">458 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L459" class="LineNr">459 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L460" class="LineNr">460 </span> <span class="Comment">// instruction effective address operand displacement immediate\n"</span>
<span id="L461" class="LineNr">461 </span> <span class="Comment">// op subop mod rm32 base index scale r32\n"</span>
<span id="L462" class="LineNr">462 </span> <span class="Comment">// 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes\n"</span>
<span id="L463" class="LineNr">463 </span> <span class="Constant">" 81 0/add/subop 3/mod/direct 3/rm32/ebx 1/imm32 \n"</span> <span class="Comment">// add 1 to EBX</span>
<span id="L464" class="LineNr">464 </span> <span class="Delimiter">);</span>
<span id="L465" class="LineNr">465 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L466" class="LineNr">466 </span> <span class="Constant">"transform: packing instruction '81 0/add/subop 3/mod/direct 3/rm32/ebx 1/imm32'\n"</span>
<span id="L467" class="LineNr">467 </span> <span class="Constant">"transform: instruction after packing: '81 c3 01 00 00 00'\n"</span>
<span id="L468" class="LineNr">468 </span> <span class="Delimiter">);</span>
<span id="L469" class="LineNr">469 </span><span class="Delimiter">}</span>
<span id="L470" class="LineNr">470 </span>
<span id="L471" class="LineNr">471 </span><span class="Normal">void</span> <a href='032operands.cc.html#L471'>test_pack_imm32_large</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L472" class="LineNr">472 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L473" class="LineNr">473 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L474" class="LineNr">474 </span> <span class="Constant">"b9 0x080490a7/imm32\n"</span>
<span id="L475" class="LineNr">475 </span> <span class="Delimiter">);</span>
<span id="L476" class="LineNr">476 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L477" class="LineNr">477 </span> <span class="Constant">"transform: packing instruction 'b9 0x080490a7/imm32'\n"</span>
<span id="L478" class="LineNr">478 </span> <span class="Constant">"transform: instruction after packing: 'b9 a7 90 04 08'\n"</span>
<span id="L479" class="LineNr">479 </span> <span class="Delimiter">);</span>
<span id="L480" class="LineNr">480 </span><span class="Delimiter">}</span>
<span id="L481" class="LineNr">481 </span>
<span id="L482" class="LineNr">482 </span><span class="Normal">void</span> <a href='032operands.cc.html#L482'>test_pack_immediate_constants_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L483" class="LineNr">483 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L484" class="LineNr">484 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L485" class="LineNr">485 </span> <span class="Constant">"b9 0x2a/imm32\n"</span>
<span id="L486" class="LineNr">486 </span> <span class="Delimiter">);</span>
<span id="L487" class="LineNr">487 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L488" class="LineNr">488 </span> <span class="Constant">"transform: packing instruction 'b9 0x2a/imm32'\n"</span>
<span id="L489" class="LineNr">489 </span> <span class="Constant">"transform: instruction after packing: 'b9 2a 00 00 00'\n"</span>
<span id="L490" class="LineNr">490 </span> <span class="Constant">"run: copy imm32 0x0000002a to ECX\n"</span>
<span id="L491" class="LineNr">491 </span> <span class="Delimiter">);</span>
<span id="L492" class="LineNr">492 </span><span class="Delimiter">}</span>
<span id="L493" class="LineNr">493 </span>
<span id="L494" class="LineNr">494 </span><span class="Normal">void</span> <a href='032operands.cc.html#L494'>test_pack_silently_ignores_non_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L495" class="LineNr">495 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L496" class="LineNr">496 </span> transform<span class="Delimiter">(</span>
<span id="L497" class="LineNr">497 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L498" class="LineNr">498 </span> <span class="Constant">"b9 foo/imm32\n"</span>
<span id="L499" class="LineNr">499 </span> <span class="Delimiter">);</span>
<span id="L500" class="LineNr">500 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L501" class="LineNr">501 </span> <span class="Constant">"transform: packing instruction 'b9 foo/imm32'\n"</span>
<span id="L502" class="LineNr">502 </span> <span class="Comment">// no change (we're just not printing metadata to the trace)</span>
<span id="L503" class="LineNr">503 </span> <span class="Constant">"transform: instruction after packing: 'b9 foo'\n"</span>
<span id="L504" class="LineNr">504 </span> <span class="Delimiter">);</span>
<span id="L505" class="LineNr">505 </span><span class="Delimiter">}</span>
<span id="L506" class="LineNr">506 </span>
<span id="L507" class="LineNr">507 </span><span class="Normal">void</span> <a href='032operands.cc.html#L507'>test_pack_flags_bad_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L508" class="LineNr">508 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L509" class="LineNr">509 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L510" class="LineNr">510 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L511" class="LineNr">511 </span> <span class="Constant">"b9 0xfoo/imm32\n"</span>
<span id="L512" class="LineNr">512 </span> <span class="Delimiter">);</span>
<span id="L513" class="LineNr">513 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L514" class="LineNr">514 </span> <span class="Constant">"error: not a number: 0xfoo\n"</span>
<span id="L515" class="LineNr">515 </span> <span class="Delimiter">);</span>
<span id="L516" class="LineNr">516 </span><span class="Delimiter">}</span>
<span id="L517" class="LineNr">517 </span>
<span id="L518" class="LineNr">518 </span><span class="Normal">void</span> <a href='032operands.cc.html#L518'>test_pack_flags_uppercase_hex</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L519" class="LineNr">519 </span> <span class="SpecialChar">Hide_errors</span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L520" class="LineNr">520 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span>
<span id="L521" class="LineNr">521 </span> <span class="Constant">"== code 0x1\n"</span>
<span id="L522" class="LineNr">522 </span> <span class="Constant">"b9 0xAb/imm32\n"</span>
<span id="L523" class="LineNr">523 </span> <span class="Delimiter">);</span>
<span id="L524" class="LineNr">524 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span>
<span id="L525" class="LineNr">525 </span> <span class="Constant">"error: uppercase hex not allowed: 0xAb\n"</span>
<span id="L526" class="LineNr">526 </span> <span class="Delimiter">);</span>
<span id="L527" class="LineNr">527 </span><span class="Delimiter">}</span>
<span id="L528" class="LineNr">528 </span>
<span id="L529" class="LineNr">529 </span><span class="SalientComment">//:: helpers</span>
<span id="L530" class="LineNr">530 </span>
<span id="L531" class="LineNr">531 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L531'>all_hex_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L532" class="LineNr">532 </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>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span id="L533" class="LineNr">533 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span>
<span id="L534" class="LineNr">534 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L535" class="LineNr">535 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L536" class="LineNr">536 </span><span class="Delimiter">}</span>
<span id="L537" class="LineNr">537 </span>
<span id="L538" class="LineNr">538 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L538'>is_hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> word& curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L539" class="LineNr">539 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='032operands.cc.html#L548'>contains_any_argument_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span>
<span id="L540" class="LineNr">540 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L541" class="LineNr">541 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L166'>SIZE</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span>
<span id="L542" class="LineNr">542 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L543" class="LineNr">543 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>data<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789abcdef"</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span>
<span id="L544" class="LineNr">544 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L545" class="LineNr">545 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L546" class="LineNr">546 </span><span class="Delimiter">}</span>
<span id="L547" class="LineNr">547 </span>
<span id="L548" class="LineNr">548 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L548'>contains_any_argument_metadata</a><span class="Delimiter">(</span><span class="Normal">const</span> word& <a href='011run.cc.html#L127'>word</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L549" class="LineNr">549 </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><a href='011run.cc.html#L127'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span id="L550" class="LineNr">550 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='011run.cc.html#L127'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> != <span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>end<span class="Delimiter">())</span>
<span id="L551" class="LineNr">551 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L552" class="LineNr">552 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L553" class="LineNr">553 </span><span class="Delimiter">}</span>
<span id="L554" class="LineNr">554 </span>
<span id="L555" class="LineNr">555 </span><span class="Normal">bool</span> has_argument_metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L556" class="LineNr">556 </span> <span class="Normal">bool</span> result = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L557" class="LineNr">557 </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>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L558" class="LineNr">558 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_argument_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L559" class="LineNr">559 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L560" class="LineNr">560 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' has conflicting "</span> << m << <span class="Constant">" arguments\n"</span> << end<span class="Delimiter">();</span>
<span id="L561" class="LineNr">561 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L562" class="LineNr">562 </span> <span class="Delimiter">}</span>
<span id="L563" class="LineNr">563 </span> result = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L564" class="LineNr">564 </span> <span class="Delimiter">}</span>
<span id="L565" class="LineNr">565 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L566" class="LineNr">566 </span><span class="Delimiter">}</span>
<span id="L567" class="LineNr">567 </span>
<span id="L568" class="LineNr">568 </span><span class="Normal">bool</span> has_argument_metadata<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L569" class="LineNr">569 </span> <span class="Normal">bool</span> result = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L570" class="LineNr">570 </span> <span class="Normal">bool</span> metadata_found = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L571" class="LineNr">571 </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 class="Delimiter">{</span>
<span id="L572" class="LineNr">572 </span> <span class="Normal">const</span> string& curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L573" class="LineNr">573 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>find<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> == <span class="SpecialChar"><a href='032operands.cc.html#L50'>Instruction_arguments</a></span><span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span>
<span id="L574" class="LineNr">574 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata_found<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L575" class="LineNr">575 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting argument types; it should have only one\n"</span> << end<span class="Delimiter">();</span>
<span id="L576" class="LineNr">576 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L577" class="LineNr">577 </span> <span class="Delimiter">}</span>
<span id="L578" class="LineNr">578 </span> metadata_found = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L579" class="LineNr">579 </span> result = <span class="Delimiter">(</span>curr == m<span class="Delimiter">);</span>
<span id="L580" class="LineNr">580 </span> <span class="Delimiter">}</span>
<span id="L581" class="LineNr">581 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L582" class="LineNr">582 </span><span class="Delimiter">}</span>
<span id="L583" class="LineNr">583 </span>
<span id="L584" class="LineNr">584 </span><a href='011run.cc.html#L127'>word</a> metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L585" class="LineNr">585 </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>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span id="L586" class="LineNr">586 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_argument_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span>
<span id="L587" class="LineNr">587 </span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L588" class="LineNr">588 </span> assert<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span>
<span id="L589" class="LineNr">589 </span><span class="Delimiter">}</span>
<span id="L590" class="LineNr">590 </span>
<span id="L591" class="LineNr">591 </span><span class="Normal">bool</span> <a href='032operands.cc.html#L591'>looks_like_hex_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L592" class="LineNr">592 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L593" class="LineNr">593 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span> || s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'+'</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L594" class="LineNr">594 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>isdigit<span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span class="Comment">// includes '0x' prefix</span>
<span id="L595" class="LineNr">595 </span> <span class="Comment">// End looks_like_hex_int(s) Detectors</span>
<span id="L596" class="LineNr">596 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L597" class="LineNr">597 </span><span class="Delimiter">}</span>
<span id="L598" class="LineNr">598 </span>
<span id="L599" class="LineNr">599 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L600" class="LineNr">600 </span> ostringstream out<span class="Delimiter">;</span>
<span id="L601" class="LineNr">601 </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>inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L602" class="LineNr">602 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span>
<span id="L603" class="LineNr">603 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L122'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original<span class="Delimiter">;</span>
<span id="L604" class="LineNr">604 </span> <span class="Delimiter">}</span>
<span id="L605" class="LineNr">605 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span id="L606" class="LineNr">606 </span><span class="Delimiter">}</span>
<span id="L607" class="LineNr">607 </span>
<span id="L608" class="LineNr">608 </span><span class="Normal">int32_t</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L609" class="LineNr">609 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L610" class="LineNr">610 </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="L611" class="LineNr">611 </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="L612" class="LineNr">612 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L613" class="LineNr">613 </span> <span class="Delimiter">}</span>
<span id="L614" class="LineNr">614 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
<span id="L615" class="LineNr">615 </span> in >> std::hex<span class="Delimiter">;</span>
<span id="L616" class="LineNr">616 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L617" class="LineNr">617 </span> <span class="Normal">int32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L618" class="LineNr">618 </span> in >> result<span class="Delimiter">;</span>
<span id="L619" class="LineNr">619 </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="L620" class="LineNr">620 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span id="L621" class="LineNr">621 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L622" class="LineNr">622 </span> <span class="Delimiter">}</span>
<span id="L623" class="LineNr">623 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L624" class="LineNr">624 </span> <span class="Delimiter">}</span>
<span id="L625" class="LineNr">625 </span> <span class="Normal">uint32_t</span> uresult = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L626" class="LineNr">626 </span> in >> uresult<span class="Delimiter">;</span>
<span id="L627" class="LineNr">627 </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="L628" class="LineNr">628 </span> <a href='003trace.cc.html#L226'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span id="L629" class="LineNr">629 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L630" class="LineNr">630 </span> <span class="Delimiter">}</span>
<span id="L631" class="LineNr">631 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>uresult<span class="Delimiter">);</span>
<span id="L632" class="LineNr">632 </span><span class="Delimiter">}</span>
<span id="L633" class="LineNr">633 </span><span class="Delimiter">:(before "End Unit Tests")</span>
<span id="L634" class="LineNr">634 </span><span class="Normal">void</span> <a href='032operands.cc.html#L634'>test_parse_int</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L635" class="LineNr">635 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0"</span><span class="Delimiter">));</span>
<span id="L636" class="LineNr">636 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0x0"</span><span class="Delimiter">));</span>
<span id="L637" class="LineNr">637 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0x0"</span><span class="Delimiter">));</span>
<span id="L638" class="LineNr">638 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><span class="Constant">16</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"10"</span><span class="Delimiter">));</span> <span class="Comment">// hex always</span>
<span id="L639" class="LineNr">639 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"-1"</span><span class="Delimiter">));</span>
<span id="L640" class="LineNr">640 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>-<span class="Constant">1</span><span class="Delimiter">,</span> <a href='032operands.cc.html#L608'>parse_int</a><span class="Delimiter">(</span><span class="Constant">"0xffffffff"</span><span class="Delimiter">));</span>
<span id="L641" class="LineNr">641 </span><span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|