Coverage Report

Created: 2025-08-29 06:29

/src/capstonenext/arch/TMS320C64x/TMS320C64xDisassembler.c
Line
Count
Source (jump to first uncovered line)
1
/* Capstone Disassembly Engine */
2
/* TMS320C64x Backend by Fotis Loukos <me@fotisl.com> 2016 */
3
4
#ifdef CAPSTONE_HAS_TMS320C64X
5
6
#include <string.h>
7
8
#include "../../cs_priv.h"
9
#include "../../utils.h"
10
11
#include "TMS320C64xDisassembler.h"
12
13
#include "../../MCInst.h"
14
#include "../../MCInstrDesc.h"
15
#include "../../MCFixedLenDisassembler.h"
16
#include "../../MCRegisterInfo.h"
17
#include "../../MCDisassembler.h"
18
#include "../../MathExtras.h"
19
20
static uint64_t getFeatureBits(int mode);
21
22
static DecodeStatus DecodeGPRegsRegisterClass(MCInst *Inst, unsigned RegNo,
23
                uint64_t Address, void *Decoder);
24
25
static DecodeStatus DecodeControlRegsRegisterClass(MCInst *Inst, unsigned RegNo,
26
               uint64_t Address,
27
               void *Decoder);
28
29
static DecodeStatus DecodeScst5(MCInst *Inst, unsigned Val, uint64_t Address,
30
        void *Decoder);
31
32
static DecodeStatus DecodeScst16(MCInst *Inst, unsigned Val, uint64_t Address,
33
         void *Decoder);
34
35
static DecodeStatus DecodePCRelScst7(MCInst *Inst, unsigned Val,
36
             uint64_t Address, void *Decoder);
37
38
static DecodeStatus DecodePCRelScst10(MCInst *Inst, unsigned Val,
39
              uint64_t Address, void *Decoder);
40
41
static DecodeStatus DecodePCRelScst12(MCInst *Inst, unsigned Val,
42
              uint64_t Address, void *Decoder);
43
44
static DecodeStatus DecodePCRelScst21(MCInst *Inst, unsigned Val,
45
              uint64_t Address, void *Decoder);
46
47
static DecodeStatus DecodeMemOperand(MCInst *Inst, unsigned Val,
48
             uint64_t Address, void *Decoder);
49
50
static DecodeStatus DecodeMemOperandSc(MCInst *Inst, unsigned Val,
51
               uint64_t Address, void *Decoder);
52
53
static DecodeStatus DecodeMemOperand2(MCInst *Inst, unsigned Val,
54
              uint64_t Address, void *Decoder);
55
56
static DecodeStatus DecodeRegPair5(MCInst *Inst, unsigned RegNo,
57
           uint64_t Address, void *Decoder);
58
59
static DecodeStatus DecodeRegPair4(MCInst *Inst, unsigned RegNo,
60
           uint64_t Address, void *Decoder);
61
62
static DecodeStatus DecodeCondRegister(MCInst *Inst, unsigned Val,
63
               uint64_t Address, void *Decoder);
64
65
static DecodeStatus DecodeCondRegisterZero(MCInst *Inst, unsigned Val,
66
             uint64_t Address, void *Decoder);
67
68
static DecodeStatus DecodeSide(MCInst *Inst, unsigned Val, uint64_t Address,
69
             void *Decoder);
70
71
static DecodeStatus DecodeParallel(MCInst *Inst, unsigned Val, uint64_t Address,
72
           void *Decoder);
73
74
static DecodeStatus DecodeCrosspathX1(MCInst *Inst, unsigned Val,
75
              uint64_t Address, void *Decoder);
76
77
static DecodeStatus DecodeCrosspathX2(MCInst *Inst, unsigned Val,
78
              uint64_t Address, void *Decoder);
79
80
static DecodeStatus DecodeCrosspathX3(MCInst *Inst, unsigned Val,
81
              uint64_t Address, void *Decoder);
82
83
static DecodeStatus DecodeNop(MCInst *Inst, unsigned Val, uint64_t Address,
84
            void *Decoder);
85
86
#include "TMS320C64xGenDisassemblerTables.inc"
87
88
#define GET_REGINFO_ENUM
89
#define GET_REGINFO_MC_DESC
90
#include "TMS320C64xGenRegisterInfo.inc"
91
92
static const unsigned GPRegsDecoderTable[] = {
93
  TMS320C64x_A0,  TMS320C64x_A1,  TMS320C64x_A2,  TMS320C64x_A3,
94
  TMS320C64x_A4,  TMS320C64x_A5,  TMS320C64x_A6,  TMS320C64x_A7,
95
  TMS320C64x_A8,  TMS320C64x_A9,  TMS320C64x_A10, TMS320C64x_A11,
96
  TMS320C64x_A12, TMS320C64x_A13, TMS320C64x_A14, TMS320C64x_A15,
97
  TMS320C64x_A16, TMS320C64x_A17, TMS320C64x_A18, TMS320C64x_A19,
98
  TMS320C64x_A20, TMS320C64x_A21, TMS320C64x_A22, TMS320C64x_A23,
99
  TMS320C64x_A24, TMS320C64x_A25, TMS320C64x_A26, TMS320C64x_A27,
100
  TMS320C64x_A28, TMS320C64x_A29, TMS320C64x_A30, TMS320C64x_A31
101
};
102
103
static const unsigned ControlRegsDecoderTable[] = { TMS320C64x_AMR,
104
                TMS320C64x_CSR,
105
                TMS320C64x_ISR,
106
                TMS320C64x_ICR,
107
                TMS320C64x_IER,
108
                TMS320C64x_ISTP,
109
                TMS320C64x_IRP,
110
                TMS320C64x_NRP,
111
                ~0U,
112
                ~0U,
113
                TMS320C64x_TSCL,
114
                TMS320C64x_TSCH,
115
                ~0U,
116
                TMS320C64x_ILC,
117
                TMS320C64x_RILC,
118
                TMS320C64x_REP,
119
                TMS320C64x_PCE1,
120
                TMS320C64x_DNUM,
121
                ~0U,
122
                ~0U,
123
                ~0U,
124
                TMS320C64x_SSR,
125
                TMS320C64x_GPLYA,
126
                TMS320C64x_GPLYB,
127
                TMS320C64x_GFPGFR,
128
                TMS320C64x_DIER,
129
                TMS320C64x_TSR,
130
                TMS320C64x_ITSR,
131
                TMS320C64x_NTSR,
132
                TMS320C64x_ECR,
133
                ~0U,
134
                TMS320C64x_IERR };
135
136
static uint64_t getFeatureBits(int mode)
137
23.9k
{
138
  // support everything
139
23.9k
  return (uint64_t)-1;
140
23.9k
}
141
142
static unsigned getReg(const unsigned *RegTable, unsigned RegNo)
143
42.5k
{
144
42.5k
  if (RegNo > 31)
145
20
    return ~0U;
146
42.5k
  return RegTable[RegNo];
147
42.5k
}
148
149
static DecodeStatus DecodeGPRegsRegisterClass(MCInst *Inst, unsigned RegNo,
150
                uint64_t Address, void *Decoder)
151
31.6k
{
152
31.6k
  unsigned Reg;
153
154
31.6k
  if (RegNo > 31)
155
0
    return MCDisassembler_Fail;
156
157
31.6k
  Reg = getReg(GPRegsDecoderTable, RegNo);
158
31.6k
  if (Reg == ~0U)
159
0
    return MCDisassembler_Fail;
160
31.6k
  MCOperand_CreateReg0(Inst, Reg);
161
162
31.6k
  return MCDisassembler_Success;
163
31.6k
}
164
165
static DecodeStatus DecodeControlRegsRegisterClass(MCInst *Inst, unsigned RegNo,
166
               uint64_t Address,
167
               void *Decoder)
168
1.14k
{
169
1.14k
  unsigned Reg;
170
171
1.14k
  if (RegNo > 31)
172
0
    return MCDisassembler_Fail;
173
174
1.14k
  Reg = getReg(ControlRegsDecoderTable, RegNo);
175
1.14k
  if (Reg == ~0U)
176
1
    return MCDisassembler_Fail;
177
1.14k
  MCOperand_CreateReg0(Inst, Reg);
178
179
1.14k
  return MCDisassembler_Success;
180
1.14k
}
181
182
static DecodeStatus DecodeScst5(MCInst *Inst, unsigned Val, uint64_t Address,
183
        void *Decoder)
184
3.61k
{
185
3.61k
  int32_t imm;
186
187
3.61k
  imm = Val;
188
  /* Sign extend 5 bit value */
189
3.61k
  if (imm & (1 << (5 - 1)))
190
1.36k
    imm |= ~((1 << 5) - 1);
191
192
3.61k
  MCOperand_CreateImm0(Inst, imm);
193
194
3.61k
  return MCDisassembler_Success;
195
3.61k
}
196
197
static DecodeStatus DecodeScst16(MCInst *Inst, unsigned Val, uint64_t Address,
198
         void *Decoder)
199
897
{
200
897
  int32_t imm;
201
202
897
  imm = Val;
203
  /* Sign extend 16 bit value */
204
897
  if (imm & (1 << (16 - 1)))
205
647
    imm |= ~((1 << 16) - 1);
206
207
897
  MCOperand_CreateImm0(Inst, imm);
208
209
897
  return MCDisassembler_Success;
210
897
}
211
212
static DecodeStatus DecodePCRelScst7(MCInst *Inst, unsigned Val,
213
             uint64_t Address, void *Decoder)
214
355
{
215
355
  int32_t imm;
216
217
355
  imm = Val;
218
  /* Sign extend 7 bit value */
219
355
  if (imm & (1 << (7 - 1)))
220
328
    imm |= ~((1 << 7) - 1);
221
222
  /* Address is relative to the address of the first instruction in the fetch packet */
223
355
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
224
225
355
  return MCDisassembler_Success;
226
355
}
227
228
static DecodeStatus DecodePCRelScst10(MCInst *Inst, unsigned Val,
229
              uint64_t Address, void *Decoder)
230
499
{
231
499
  int32_t imm;
232
233
499
  imm = Val;
234
  /* Sign extend 10 bit value */
235
499
  if (imm & (1 << (10 - 1)))
236
273
    imm |= ~((1 << 10) - 1);
237
238
  /* Address is relative to the address of the first instruction in the fetch packet */
239
499
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
240
241
499
  return MCDisassembler_Success;
242
499
}
243
244
static DecodeStatus DecodePCRelScst12(MCInst *Inst, unsigned Val,
245
              uint64_t Address, void *Decoder)
246
287
{
247
287
  int32_t imm;
248
249
287
  imm = Val;
250
  /* Sign extend 12 bit value */
251
287
  if (imm & (1 << (12 - 1)))
252
84
    imm |= ~((1 << 12) - 1);
253
254
  /* Address is relative to the address of the first instruction in the fetch packet */
255
287
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
256
257
287
  return MCDisassembler_Success;
258
287
}
259
260
static DecodeStatus DecodePCRelScst21(MCInst *Inst, unsigned Val,
261
              uint64_t Address, void *Decoder)
262
1.48k
{
263
1.48k
  int32_t imm;
264
265
1.48k
  imm = Val;
266
  /* Sign extend 21 bit value */
267
1.48k
  if (imm & (1 << (21 - 1)))
268
698
    imm |= ~((1 << 21) - 1);
269
270
  /* Address is relative to the address of the first instruction in the fetch packet */
271
1.48k
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
272
273
1.48k
  return MCDisassembler_Success;
274
1.48k
}
275
276
static DecodeStatus DecodeMemOperand(MCInst *Inst, unsigned Val,
277
             uint64_t Address, void *Decoder)
278
2.20k
{
279
2.20k
  return DecodeMemOperandSc(Inst, Val | (1 << 15), Address, Decoder);
280
2.20k
}
281
282
static DecodeStatus DecodeMemOperandSc(MCInst *Inst, unsigned Val,
283
               uint64_t Address, void *Decoder)
284
2.47k
{
285
2.47k
  uint8_t scaled, base, offset, mode, unit;
286
2.47k
  unsigned basereg, offsetreg;
287
288
2.47k
  scaled = (Val >> 15) & 1;
289
2.47k
  base = (Val >> 10) & 0x1f;
290
2.47k
  offset = (Val >> 5) & 0x1f;
291
2.47k
  mode = (Val >> 1) & 0xf;
292
2.47k
  unit = Val & 1;
293
294
2.47k
  if ((base >= TMS320C64X_REG_A0) && (base <= TMS320C64X_REG_A31))
295
18
    base = (base - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
296
  // base cannot be a B register, because it was ANDed above with 0x1f.
297
  // And the TMS320C64X_REG_B0 > 31
298
2.47k
  basereg = getReg(GPRegsDecoderTable, base);
299
2.47k
  if (basereg == ~0U)
300
18
    return MCDisassembler_Fail;
301
302
2.45k
  switch (mode) {
303
652
  case 0:
304
889
  case 1:
305
1.12k
  case 8:
306
1.32k
  case 9:
307
1.57k
  case 10:
308
1.83k
  case 11:
309
1.83k
    MCOperand_CreateImm0(Inst, (scaled << 19) | (basereg << 12) |
310
1.83k
               (offset << 5) | (mode << 1) |
311
1.83k
               unit);
312
1.83k
    break;
313
105
  case 4:
314
185
  case 5:
315
239
  case 12:
316
373
  case 13:
317
404
  case 14:
318
605
  case 15:
319
605
    if ((offset >= TMS320C64X_REG_A0) &&
320
605
        (offset <= TMS320C64X_REG_A31))
321
2
      offset = (offset - TMS320C64X_REG_A0 +
322
2
          TMS320C64X_REG_B0);
323
    // offset cannot be a B register, because it was ANDed above with 0x1f.
324
    // And the TMS320C64X_REG_B0 > 31
325
605
    offsetreg = getReg(GPRegsDecoderTable, offset);
326
605
    if (offsetreg == ~0U)
327
2
      return MCDisassembler_Fail;
328
603
    MCOperand_CreateImm0(Inst, (scaled << 19) | (basereg << 12) |
329
603
               (offsetreg << 5) |
330
603
               (mode << 1) | unit);
331
603
    break;
332
12
  default:
333
12
    return MCDisassembler_Fail;
334
2.45k
  }
335
336
2.44k
  return MCDisassembler_Success;
337
2.45k
}
338
339
static DecodeStatus DecodeMemOperand2(MCInst *Inst, unsigned Val,
340
              uint64_t Address, void *Decoder)
341
2.53k
{
342
2.53k
  uint16_t offset;
343
2.53k
  unsigned basereg;
344
345
2.53k
  if (Val & 1)
346
1.22k
    basereg = TMS320C64X_REG_B15;
347
1.30k
  else
348
1.30k
    basereg = TMS320C64X_REG_B14;
349
350
2.53k
  offset = (Val >> 1) & 0x7fff;
351
2.53k
  MCOperand_CreateImm0(Inst, (offset << 7) | basereg);
352
353
2.53k
  return MCDisassembler_Success;
354
2.53k
}
355
356
static DecodeStatus DecodeRegPair5(MCInst *Inst, unsigned RegNo,
357
           uint64_t Address, void *Decoder)
358
6.45k
{
359
6.45k
  unsigned Reg;
360
361
6.45k
  if (RegNo > 31)
362
0
    return MCDisassembler_Fail;
363
364
6.45k
  Reg = getReg(GPRegsDecoderTable, RegNo);
365
6.45k
  MCOperand_CreateReg0(Inst, Reg);
366
367
6.45k
  return MCDisassembler_Success;
368
6.45k
}
369
370
static DecodeStatus DecodeRegPair4(MCInst *Inst, unsigned RegNo,
371
           uint64_t Address, void *Decoder)
372
272
{
373
272
  unsigned Reg;
374
375
272
  if (RegNo > 15)
376
0
    return MCDisassembler_Fail;
377
378
272
  Reg = getReg(GPRegsDecoderTable, RegNo << 1);
379
272
  MCOperand_CreateReg0(Inst, Reg);
380
381
272
  return MCDisassembler_Success;
382
272
}
383
384
static DecodeStatus DecodeCondRegister(MCInst *Inst, unsigned Val,
385
               uint64_t Address, void *Decoder)
386
23.8k
{
387
23.8k
  DecodeStatus ret = MCDisassembler_Success;
388
389
23.8k
  if (!Inst->flat_insn->detail)
390
0
    return MCDisassembler_Success;
391
392
23.8k
  switch (Val) {
393
5.41k
  case 0:
394
10.0k
  case 7:
395
10.0k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
396
10.0k
      TMS320C64X_REG_INVALID;
397
10.0k
    break;
398
2.79k
  case 1:
399
2.79k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
400
2.79k
      TMS320C64X_REG_B0;
401
2.79k
    break;
402
2.26k
  case 2:
403
2.26k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
404
2.26k
      TMS320C64X_REG_B1;
405
2.26k
    break;
406
2.64k
  case 3:
407
2.64k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
408
2.64k
      TMS320C64X_REG_B2;
409
2.64k
    break;
410
2.55k
  case 4:
411
2.55k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
412
2.55k
      TMS320C64X_REG_A1;
413
2.55k
    break;
414
2.17k
  case 5:
415
2.17k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
416
2.17k
      TMS320C64X_REG_A2;
417
2.17k
    break;
418
1.38k
  case 6:
419
1.38k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
420
1.38k
      TMS320C64X_REG_A0;
421
1.38k
    break;
422
0
  default:
423
0
    Inst->flat_insn->detail->tms320c64x.condition.reg =
424
0
      TMS320C64X_REG_INVALID;
425
0
    ret = MCDisassembler_Fail;
426
0
    break;
427
23.8k
  }
428
429
23.8k
  return ret;
430
23.8k
}
431
432
static DecodeStatus DecodeCondRegisterZero(MCInst *Inst, unsigned Val,
433
             uint64_t Address, void *Decoder)
434
23.8k
{
435
23.8k
  DecodeStatus ret = MCDisassembler_Success;
436
437
23.8k
  if (!Inst->flat_insn->detail)
438
0
    return MCDisassembler_Success;
439
440
23.8k
  switch (Val) {
441
12.0k
  case 0:
442
12.0k
    Inst->flat_insn->detail->tms320c64x.condition.zero = 0;
443
12.0k
    break;
444
11.7k
  case 1:
445
11.7k
    Inst->flat_insn->detail->tms320c64x.condition.zero = 1;
446
11.7k
    break;
447
0
  default:
448
0
    Inst->flat_insn->detail->tms320c64x.condition.zero = 0;
449
0
    ret = MCDisassembler_Fail;
450
0
    break;
451
23.8k
  }
452
453
23.8k
  return ret;
454
23.8k
}
455
456
static DecodeStatus DecodeSide(MCInst *Inst, unsigned Val, uint64_t Address,
457
             void *Decoder)
458
23.8k
{
459
23.8k
  DecodeStatus ret = MCDisassembler_Success;
460
23.8k
  MCOperand *op;
461
23.8k
  int i;
462
463
  /* This is pretty messy, probably we should find a better way */
464
23.8k
  if (Val == 1) {
465
38.3k
    for (i = 0; i < Inst->size; i++) {
466
27.5k
      op = &Inst->Operands[i];
467
27.5k
      if (op->Kind == kRegister) {
468
19.2k
        if ((op->RegVal >= TMS320C64X_REG_A0) &&
469
19.2k
            (op->RegVal <= TMS320C64X_REG_A31))
470
16.5k
          op->RegVal = (op->RegVal -
471
16.5k
                  TMS320C64X_REG_A0 +
472
16.5k
                  TMS320C64X_REG_B0);
473
2.66k
        else if ((op->RegVal >= TMS320C64X_REG_B0) &&
474
2.66k
           (op->RegVal <= TMS320C64X_REG_B31))
475
1.57k
          op->RegVal = (op->RegVal -
476
1.57k
                  TMS320C64X_REG_B0 +
477
1.57k
                  TMS320C64X_REG_A0);
478
19.2k
      }
479
27.5k
    }
480
10.7k
  }
481
482
23.8k
  if (!Inst->flat_insn->detail)
483
0
    return MCDisassembler_Success;
484
485
23.8k
  switch (Val) {
486
13.0k
  case 0:
487
13.0k
    Inst->flat_insn->detail->tms320c64x.funit.side = 1;
488
13.0k
    break;
489
10.7k
  case 1:
490
10.7k
    Inst->flat_insn->detail->tms320c64x.funit.side = 2;
491
10.7k
    break;
492
0
  default:
493
0
    Inst->flat_insn->detail->tms320c64x.funit.side = 0;
494
0
    ret = MCDisassembler_Fail;
495
0
    break;
496
23.8k
  }
497
498
23.8k
  return ret;
499
23.8k
}
500
501
static DecodeStatus DecodeParallel(MCInst *Inst, unsigned Val, uint64_t Address,
502
           void *Decoder)
503
23.8k
{
504
23.8k
  DecodeStatus ret = MCDisassembler_Success;
505
506
23.8k
  if (!Inst->flat_insn->detail)
507
0
    return MCDisassembler_Success;
508
509
23.8k
  switch (Val) {
510
13.6k
  case 0:
511
13.6k
    Inst->flat_insn->detail->tms320c64x.parallel = 0;
512
13.6k
    break;
513
10.1k
  case 1:
514
10.1k
    Inst->flat_insn->detail->tms320c64x.parallel = 1;
515
10.1k
    break;
516
0
  default:
517
0
    Inst->flat_insn->detail->tms320c64x.parallel = -1;
518
0
    ret = MCDisassembler_Fail;
519
0
    break;
520
23.8k
  }
521
522
23.8k
  return ret;
523
23.8k
}
524
525
static DecodeStatus DecodeCrosspathX1(MCInst *Inst, unsigned Val,
526
              uint64_t Address, void *Decoder)
527
392
{
528
392
  DecodeStatus ret = MCDisassembler_Success;
529
392
  MCOperand *op;
530
531
392
  if (!Inst->flat_insn->detail)
532
0
    return MCDisassembler_Success;
533
534
392
  switch (Val) {
535
173
  case 0:
536
173
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
537
173
    break;
538
219
  case 1:
539
219
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 1;
540
219
    op = &Inst->Operands[0];
541
219
    if (op->Kind == kRegister) {
542
219
      if ((op->RegVal >= TMS320C64X_REG_A0) &&
543
219
          (op->RegVal <= TMS320C64X_REG_A31))
544
219
        op->RegVal = (op->RegVal - TMS320C64X_REG_A0 +
545
219
                TMS320C64X_REG_B0);
546
0
      else if ((op->RegVal >= TMS320C64X_REG_B0) &&
547
0
         (op->RegVal <= TMS320C64X_REG_B31))
548
0
        op->RegVal = (op->RegVal - TMS320C64X_REG_B0 +
549
0
                TMS320C64X_REG_A0);
550
219
    }
551
219
    break;
552
0
  default:
553
0
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
554
0
    ret = MCDisassembler_Fail;
555
0
    break;
556
392
  }
557
558
392
  return ret;
559
392
}
560
561
static DecodeStatus DecodeCrosspathX2(MCInst *Inst, unsigned Val,
562
              uint64_t Address, void *Decoder)
563
8.75k
{
564
8.75k
  DecodeStatus ret = MCDisassembler_Success;
565
8.75k
  MCOperand *op;
566
567
8.75k
  if (!Inst->flat_insn->detail)
568
0
    return MCDisassembler_Success;
569
570
8.75k
  switch (Val) {
571
4.54k
  case 0:
572
4.54k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
573
4.54k
    break;
574
4.20k
  case 1:
575
4.20k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 1;
576
4.20k
    op = &Inst->Operands[1];
577
4.20k
    if (op->Kind == kRegister) {
578
3.81k
      if ((op->RegVal >= TMS320C64X_REG_A0) &&
579
3.81k
          (op->RegVal <= TMS320C64X_REG_A31))
580
2.78k
        op->RegVal = (op->RegVal - TMS320C64X_REG_A0 +
581
2.78k
                TMS320C64X_REG_B0);
582
1.03k
      else if ((op->RegVal >= TMS320C64X_REG_B0) &&
583
1.03k
         (op->RegVal <= TMS320C64X_REG_B31))
584
0
        op->RegVal = (op->RegVal - TMS320C64X_REG_B0 +
585
0
                TMS320C64X_REG_A0);
586
3.81k
    }
587
4.20k
    break;
588
0
  default:
589
0
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
590
0
    ret = MCDisassembler_Fail;
591
0
    break;
592
8.75k
  }
593
594
8.75k
  return ret;
595
8.75k
}
596
597
static DecodeStatus DecodeCrosspathX3(MCInst *Inst, unsigned Val,
598
              uint64_t Address, void *Decoder)
599
3.13k
{
600
3.13k
  DecodeStatus ret = MCDisassembler_Success;
601
3.13k
  MCOperand *op;
602
603
3.13k
  if (!Inst->flat_insn->detail)
604
0
    return MCDisassembler_Success;
605
606
3.13k
  switch (Val) {
607
1.29k
  case 0:
608
1.29k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
609
1.29k
    break;
610
1.84k
  case 1:
611
1.84k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 2;
612
1.84k
    op = &Inst->Operands[2];
613
1.84k
    if (op->Kind == kRegister) {
614
401
      if ((op->RegVal >= TMS320C64X_REG_A0) &&
615
401
          (op->RegVal <= TMS320C64X_REG_A31))
616
401
        op->RegVal = (op->RegVal - TMS320C64X_REG_A0 +
617
401
                TMS320C64X_REG_B0);
618
0
      else if ((op->RegVal >= TMS320C64X_REG_B0) &&
619
0
         (op->RegVal <= TMS320C64X_REG_B31))
620
0
        op->RegVal = (op->RegVal - TMS320C64X_REG_B0 +
621
0
                TMS320C64X_REG_A0);
622
401
    }
623
1.84k
    break;
624
0
  default:
625
0
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
626
0
    ret = MCDisassembler_Fail;
627
0
    break;
628
3.13k
  }
629
630
3.13k
  return ret;
631
3.13k
}
632
633
static DecodeStatus DecodeNop(MCInst *Inst, unsigned Val, uint64_t Address,
634
            void *Decoder)
635
675
{
636
675
  MCOperand_CreateImm0(Inst, Val + 1);
637
638
675
  return MCDisassembler_Success;
639
675
}
640
641
#define GET_INSTRINFO_ENUM
642
#include "TMS320C64xGenInstrInfo.inc"
643
644
bool TMS320C64x_getInstruction(csh ud, const uint8_t *code, size_t code_len,
645
             MCInst *MI, uint16_t *size, uint64_t address,
646
             void *info)
647
24.2k
{
648
24.2k
  uint32_t insn;
649
24.2k
  DecodeStatus result;
650
651
24.2k
  if (code_len < 4) {
652
280
    *size = 0;
653
280
    return MCDisassembler_Fail;
654
280
  }
655
656
23.9k
  if (MI->flat_insn->detail)
657
23.9k
    memset(MI->flat_insn->detail, 0,
658
23.9k
           offsetof(cs_detail, tms320c64x) + sizeof(cs_tms320c64x));
659
660
23.9k
  insn = readBytes32(MI, code);
661
23.9k
  result =
662
23.9k
    decodeInstruction_4(DecoderTable32, MI, insn, address, info, 0);
663
664
23.9k
  if (result == MCDisassembler_Success) {
665
23.8k
    *size = 4;
666
23.8k
    return true;
667
23.8k
  }
668
669
173
  MCInst_clear(MI);
670
173
  *size = 0;
671
173
  return false;
672
23.9k
}
673
674
void TMS320C64x_init(MCRegisterInfo *MRI)
675
740
{
676
740
  MCRegisterInfo_InitMCRegisterInfo(MRI, TMS320C64xRegDesc, 90, 0, 0,
677
740
            TMS320C64xMCRegisterClasses, 7, 0, 0,
678
740
            TMS320C64xRegDiffLists, 0,
679
740
            TMS320C64xSubRegIdxLists, 1, 0);
680
740
}
681
682
#endif