Coverage Report

Created: 2025-10-12 06:32

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/capstonenext/arch/TMS320C64x/TMS320C64xDisassembler.c
Line
Count
Source
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
38.4k
{
138
  // support everything
139
38.4k
  return (uint64_t)-1;
140
38.4k
}
141
142
static unsigned getReg(const unsigned *RegTable, unsigned RegNo)
143
64.9k
{
144
64.9k
  if (RegNo > 31)
145
34
    return ~0U;
146
64.9k
  return RegTable[RegNo];
147
64.9k
}
148
149
static DecodeStatus DecodeGPRegsRegisterClass(MCInst *Inst, unsigned RegNo,
150
                uint64_t Address, void *Decoder)
151
46.0k
{
152
46.0k
  unsigned Reg;
153
154
46.0k
  if (RegNo > 31)
155
0
    return MCDisassembler_Fail;
156
157
46.0k
  Reg = getReg(GPRegsDecoderTable, RegNo);
158
46.0k
  if (Reg == ~0U)
159
0
    return MCDisassembler_Fail;
160
46.0k
  MCOperand_CreateReg0(Inst, Reg);
161
162
46.0k
  return MCDisassembler_Success;
163
46.0k
}
164
165
static DecodeStatus DecodeControlRegsRegisterClass(MCInst *Inst, unsigned RegNo,
166
               uint64_t Address,
167
               void *Decoder)
168
1.99k
{
169
1.99k
  unsigned Reg;
170
171
1.99k
  if (RegNo > 31)
172
0
    return MCDisassembler_Fail;
173
174
1.99k
  Reg = getReg(ControlRegsDecoderTable, RegNo);
175
1.99k
  if (Reg == ~0U)
176
3
    return MCDisassembler_Fail;
177
1.99k
  MCOperand_CreateReg0(Inst, Reg);
178
179
1.99k
  return MCDisassembler_Success;
180
1.99k
}
181
182
static DecodeStatus DecodeScst5(MCInst *Inst, unsigned Val, uint64_t Address,
183
        void *Decoder)
184
3.99k
{
185
3.99k
  int32_t imm;
186
187
3.99k
  imm = Val;
188
  /* Sign extend 5 bit value */
189
3.99k
  if (imm & (1 << (5 - 1)))
190
1.89k
    imm |= ~((1 << 5) - 1);
191
192
3.99k
  MCOperand_CreateImm0(Inst, imm);
193
194
3.99k
  return MCDisassembler_Success;
195
3.99k
}
196
197
static DecodeStatus DecodeScst16(MCInst *Inst, unsigned Val, uint64_t Address,
198
         void *Decoder)
199
1.40k
{
200
1.40k
  int32_t imm;
201
202
1.40k
  imm = Val;
203
  /* Sign extend 16 bit value */
204
1.40k
  if (imm & (1 << (16 - 1)))
205
975
    imm |= ~((1 << 16) - 1);
206
207
1.40k
  MCOperand_CreateImm0(Inst, imm);
208
209
1.40k
  return MCDisassembler_Success;
210
1.40k
}
211
212
static DecodeStatus DecodePCRelScst7(MCInst *Inst, unsigned Val,
213
             uint64_t Address, void *Decoder)
214
771
{
215
771
  int32_t imm;
216
217
771
  imm = Val;
218
  /* Sign extend 7 bit value */
219
771
  if (imm & (1 << (7 - 1)))
220
518
    imm |= ~((1 << 7) - 1);
221
222
  /* Address is relative to the address of the first instruction in the fetch packet */
223
771
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
224
225
771
  return MCDisassembler_Success;
226
771
}
227
228
static DecodeStatus DecodePCRelScst10(MCInst *Inst, unsigned Val,
229
              uint64_t Address, void *Decoder)
230
545
{
231
545
  int32_t imm;
232
233
545
  imm = Val;
234
  /* Sign extend 10 bit value */
235
545
  if (imm & (1 << (10 - 1)))
236
76
    imm |= ~((1 << 10) - 1);
237
238
  /* Address is relative to the address of the first instruction in the fetch packet */
239
545
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
240
241
545
  return MCDisassembler_Success;
242
545
}
243
244
static DecodeStatus DecodePCRelScst12(MCInst *Inst, unsigned Val,
245
              uint64_t Address, void *Decoder)
246
419
{
247
419
  int32_t imm;
248
249
419
  imm = Val;
250
  /* Sign extend 12 bit value */
251
419
  if (imm & (1 << (12 - 1)))
252
136
    imm |= ~((1 << 12) - 1);
253
254
  /* Address is relative to the address of the first instruction in the fetch packet */
255
419
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
256
257
419
  return MCDisassembler_Success;
258
419
}
259
260
static DecodeStatus DecodePCRelScst21(MCInst *Inst, unsigned Val,
261
              uint64_t Address, void *Decoder)
262
4.68k
{
263
4.68k
  int32_t imm;
264
265
4.68k
  imm = Val;
266
  /* Sign extend 21 bit value */
267
4.68k
  if (imm & (1 << (21 - 1)))
268
596
    imm |= ~((1 << 21) - 1);
269
270
  /* Address is relative to the address of the first instruction in the fetch packet */
271
4.68k
  MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
272
273
4.68k
  return MCDisassembler_Success;
274
4.68k
}
275
276
static DecodeStatus DecodeMemOperand(MCInst *Inst, unsigned Val,
277
             uint64_t Address, void *Decoder)
278
3.92k
{
279
3.92k
  return DecodeMemOperandSc(Inst, Val | (1 << 15), Address, Decoder);
280
3.92k
}
281
282
static DecodeStatus DecodeMemOperandSc(MCInst *Inst, unsigned Val,
283
               uint64_t Address, void *Decoder)
284
4.48k
{
285
4.48k
  uint8_t scaled, base, offset, mode, unit;
286
4.48k
  unsigned basereg, offsetreg;
287
288
4.48k
  scaled = (Val >> 15) & 1;
289
4.48k
  base = (Val >> 10) & 0x1f;
290
4.48k
  offset = (Val >> 5) & 0x1f;
291
4.48k
  mode = (Val >> 1) & 0xf;
292
4.48k
  unit = Val & 1;
293
294
4.48k
  if ((base >= TMS320C64X_REG_A0) && (base <= TMS320C64X_REG_A31))
295
29
    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
4.48k
  basereg = getReg(GPRegsDecoderTable, base);
299
4.48k
  if (basereg == ~0U)
300
29
    return MCDisassembler_Fail;
301
302
4.45k
  switch (mode) {
303
429
  case 0:
304
693
  case 1:
305
1.12k
  case 8:
306
1.35k
  case 9:
307
2.04k
  case 10:
308
3.04k
  case 11:
309
3.04k
    MCOperand_CreateImm0(Inst, (scaled << 19) | (basereg << 12) |
310
3.04k
               (offset << 5) | (mode << 1) |
311
3.04k
               unit);
312
3.04k
    break;
313
98
  case 4:
314
375
  case 5:
315
503
  case 12:
316
829
  case 13:
317
1.14k
  case 14:
318
1.39k
  case 15:
319
1.39k
    if ((offset >= TMS320C64X_REG_A0) &&
320
5
        (offset <= TMS320C64X_REG_A31))
321
5
      offset = (offset - TMS320C64X_REG_A0 +
322
5
          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
1.39k
    offsetreg = getReg(GPRegsDecoderTable, offset);
326
1.39k
    if (offsetreg == ~0U)
327
5
      return MCDisassembler_Fail;
328
1.38k
    MCOperand_CreateImm0(Inst, (scaled << 19) | (basereg << 12) |
329
1.38k
               (offsetreg << 5) |
330
1.38k
               (mode << 1) | unit);
331
1.38k
    break;
332
17
  default:
333
17
    return MCDisassembler_Fail;
334
4.45k
  }
335
336
4.43k
  return MCDisassembler_Success;
337
4.45k
}
338
339
static DecodeStatus DecodeMemOperand2(MCInst *Inst, unsigned Val,
340
              uint64_t Address, void *Decoder)
341
4.44k
{
342
4.44k
  uint16_t offset;
343
4.44k
  unsigned basereg;
344
345
4.44k
  if (Val & 1)
346
2.00k
    basereg = TMS320C64X_REG_B15;
347
2.44k
  else
348
2.44k
    basereg = TMS320C64X_REG_B14;
349
350
4.44k
  offset = (Val >> 1) & 0x7fff;
351
4.44k
  MCOperand_CreateImm0(Inst, (offset << 7) | basereg);
352
353
4.44k
  return MCDisassembler_Success;
354
4.44k
}
355
356
static DecodeStatus DecodeRegPair5(MCInst *Inst, unsigned RegNo,
357
           uint64_t Address, void *Decoder)
358
10.5k
{
359
10.5k
  unsigned Reg;
360
361
10.5k
  if (RegNo > 31)
362
0
    return MCDisassembler_Fail;
363
364
10.5k
  Reg = getReg(GPRegsDecoderTable, RegNo);
365
10.5k
  MCOperand_CreateReg0(Inst, Reg);
366
367
10.5k
  return MCDisassembler_Success;
368
10.5k
}
369
370
static DecodeStatus DecodeRegPair4(MCInst *Inst, unsigned RegNo,
371
           uint64_t Address, void *Decoder)
372
554
{
373
554
  unsigned Reg;
374
375
554
  if (RegNo > 15)
376
0
    return MCDisassembler_Fail;
377
378
554
  Reg = getReg(GPRegsDecoderTable, RegNo << 1);
379
554
  MCOperand_CreateReg0(Inst, Reg);
380
381
554
  return MCDisassembler_Success;
382
554
}
383
384
static DecodeStatus DecodeCondRegister(MCInst *Inst, unsigned Val,
385
               uint64_t Address, void *Decoder)
386
38.1k
{
387
38.1k
  DecodeStatus ret = MCDisassembler_Success;
388
389
38.1k
  if (!Inst->flat_insn->detail)
390
0
    return MCDisassembler_Success;
391
392
38.1k
  switch (Val) {
393
7.19k
  case 0:
394
11.9k
  case 7:
395
11.9k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
396
11.9k
      TMS320C64X_REG_INVALID;
397
11.9k
    break;
398
5.52k
  case 1:
399
5.52k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
400
5.52k
      TMS320C64X_REG_B0;
401
5.52k
    break;
402
3.81k
  case 2:
403
3.81k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
404
3.81k
      TMS320C64X_REG_B1;
405
3.81k
    break;
406
4.03k
  case 3:
407
4.03k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
408
4.03k
      TMS320C64X_REG_B2;
409
4.03k
    break;
410
5.01k
  case 4:
411
5.01k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
412
5.01k
      TMS320C64X_REG_A1;
413
5.01k
    break;
414
4.87k
  case 5:
415
4.87k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
416
4.87k
      TMS320C64X_REG_A2;
417
4.87k
    break;
418
2.99k
  case 6:
419
2.99k
    Inst->flat_insn->detail->tms320c64x.condition.reg =
420
2.99k
      TMS320C64X_REG_A0;
421
2.99k
    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
38.1k
  }
428
429
38.1k
  return ret;
430
38.1k
}
431
432
static DecodeStatus DecodeCondRegisterZero(MCInst *Inst, unsigned Val,
433
             uint64_t Address, void *Decoder)
434
38.1k
{
435
38.1k
  DecodeStatus ret = MCDisassembler_Success;
436
437
38.1k
  if (!Inst->flat_insn->detail)
438
0
    return MCDisassembler_Success;
439
440
38.1k
  switch (Val) {
441
16.7k
  case 0:
442
16.7k
    Inst->flat_insn->detail->tms320c64x.condition.zero = 0;
443
16.7k
    break;
444
21.4k
  case 1:
445
21.4k
    Inst->flat_insn->detail->tms320c64x.condition.zero = 1;
446
21.4k
    break;
447
0
  default:
448
0
    Inst->flat_insn->detail->tms320c64x.condition.zero = 0;
449
0
    ret = MCDisassembler_Fail;
450
0
    break;
451
38.1k
  }
452
453
38.1k
  return ret;
454
38.1k
}
455
456
static DecodeStatus DecodeSide(MCInst *Inst, unsigned Val, uint64_t Address,
457
             void *Decoder)
458
38.1k
{
459
38.1k
  DecodeStatus ret = MCDisassembler_Success;
460
38.1k
  MCOperand *op;
461
38.1k
  int i;
462
463
  /* This is pretty messy, probably we should find a better way */
464
38.1k
  if (Val == 1) {
465
59.7k
    for (i = 0; i < Inst->size; i++) {
466
41.7k
      op = &Inst->Operands[i];
467
41.7k
      if (op->Kind == kRegister) {
468
27.6k
        if ((op->RegVal >= TMS320C64X_REG_A0) &&
469
25.9k
            (op->RegVal <= TMS320C64X_REG_A31))
470
23.6k
          op->RegVal = (op->RegVal -
471
23.6k
                  TMS320C64X_REG_A0 +
472
23.6k
                  TMS320C64X_REG_B0);
473
4.06k
        else if ((op->RegVal >= TMS320C64X_REG_B0) &&
474
2.33k
           (op->RegVal <= TMS320C64X_REG_B31))
475
2.22k
          op->RegVal = (op->RegVal -
476
2.22k
                  TMS320C64X_REG_B0 +
477
2.22k
                  TMS320C64X_REG_A0);
478
27.6k
      }
479
41.7k
    }
480
18.0k
  }
481
482
38.1k
  if (!Inst->flat_insn->detail)
483
0
    return MCDisassembler_Success;
484
485
38.1k
  switch (Val) {
486
20.1k
  case 0:
487
20.1k
    Inst->flat_insn->detail->tms320c64x.funit.side = 1;
488
20.1k
    break;
489
18.0k
  case 1:
490
18.0k
    Inst->flat_insn->detail->tms320c64x.funit.side = 2;
491
18.0k
    break;
492
0
  default:
493
0
    Inst->flat_insn->detail->tms320c64x.funit.side = 0;
494
0
    ret = MCDisassembler_Fail;
495
0
    break;
496
38.1k
  }
497
498
38.1k
  return ret;
499
38.1k
}
500
501
static DecodeStatus DecodeParallel(MCInst *Inst, unsigned Val, uint64_t Address,
502
           void *Decoder)
503
38.1k
{
504
38.1k
  DecodeStatus ret = MCDisassembler_Success;
505
506
38.1k
  if (!Inst->flat_insn->detail)
507
0
    return MCDisassembler_Success;
508
509
38.1k
  switch (Val) {
510
18.4k
  case 0:
511
18.4k
    Inst->flat_insn->detail->tms320c64x.parallel = 0;
512
18.4k
    break;
513
19.7k
  case 1:
514
19.7k
    Inst->flat_insn->detail->tms320c64x.parallel = 1;
515
19.7k
    break;
516
0
  default:
517
0
    Inst->flat_insn->detail->tms320c64x.parallel = -1;
518
0
    ret = MCDisassembler_Fail;
519
0
    break;
520
38.1k
  }
521
522
38.1k
  return ret;
523
38.1k
}
524
525
static DecodeStatus DecodeCrosspathX1(MCInst *Inst, unsigned Val,
526
              uint64_t Address, void *Decoder)
527
245
{
528
245
  DecodeStatus ret = MCDisassembler_Success;
529
245
  MCOperand *op;
530
531
245
  if (!Inst->flat_insn->detail)
532
0
    return MCDisassembler_Success;
533
534
245
  switch (Val) {
535
163
  case 0:
536
163
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
537
163
    break;
538
82
  case 1:
539
82
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 1;
540
82
    op = &Inst->Operands[0];
541
82
    if (op->Kind == kRegister) {
542
82
      if ((op->RegVal >= TMS320C64X_REG_A0) &&
543
82
          (op->RegVal <= TMS320C64X_REG_A31))
544
82
        op->RegVal = (op->RegVal - TMS320C64X_REG_A0 +
545
82
                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
82
    }
551
82
    break;
552
0
  default:
553
0
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
554
0
    ret = MCDisassembler_Fail;
555
0
    break;
556
245
  }
557
558
245
  return ret;
559
245
}
560
561
static DecodeStatus DecodeCrosspathX2(MCInst *Inst, unsigned Val,
562
              uint64_t Address, void *Decoder)
563
10.9k
{
564
10.9k
  DecodeStatus ret = MCDisassembler_Success;
565
10.9k
  MCOperand *op;
566
567
10.9k
  if (!Inst->flat_insn->detail)
568
0
    return MCDisassembler_Success;
569
570
10.9k
  switch (Val) {
571
4.17k
  case 0:
572
4.17k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
573
4.17k
    break;
574
6.76k
  case 1:
575
6.76k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 1;
576
6.76k
    op = &Inst->Operands[1];
577
6.76k
    if (op->Kind == kRegister) {
578
5.81k
      if ((op->RegVal >= TMS320C64X_REG_A0) &&
579
4.09k
          (op->RegVal <= TMS320C64X_REG_A31))
580
3.97k
        op->RegVal = (op->RegVal - TMS320C64X_REG_A0 +
581
3.97k
                TMS320C64X_REG_B0);
582
1.83k
      else if ((op->RegVal >= TMS320C64X_REG_B0) &&
583
116
         (op->RegVal <= TMS320C64X_REG_B31))
584
0
        op->RegVal = (op->RegVal - TMS320C64X_REG_B0 +
585
0
                TMS320C64X_REG_A0);
586
5.81k
    }
587
6.76k
    break;
588
0
  default:
589
0
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
590
0
    ret = MCDisassembler_Fail;
591
0
    break;
592
10.9k
  }
593
594
10.9k
  return ret;
595
10.9k
}
596
597
static DecodeStatus DecodeCrosspathX3(MCInst *Inst, unsigned Val,
598
              uint64_t Address, void *Decoder)
599
5.68k
{
600
5.68k
  DecodeStatus ret = MCDisassembler_Success;
601
5.68k
  MCOperand *op;
602
603
5.68k
  if (!Inst->flat_insn->detail)
604
0
    return MCDisassembler_Success;
605
606
5.68k
  switch (Val) {
607
1.85k
  case 0:
608
1.85k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
609
1.85k
    break;
610
3.83k
  case 1:
611
3.83k
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = 2;
612
3.83k
    op = &Inst->Operands[2];
613
3.83k
    if (op->Kind == kRegister) {
614
1.90k
      if ((op->RegVal >= TMS320C64X_REG_A0) &&
615
1.90k
          (op->RegVal <= TMS320C64X_REG_A31))
616
1.90k
        op->RegVal = (op->RegVal - TMS320C64X_REG_A0 +
617
1.90k
                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
1.90k
    }
623
3.83k
    break;
624
0
  default:
625
0
    Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
626
0
    ret = MCDisassembler_Fail;
627
0
    break;
628
5.68k
  }
629
630
5.68k
  return ret;
631
5.68k
}
632
633
static DecodeStatus DecodeNop(MCInst *Inst, unsigned Val, uint64_t Address,
634
            void *Decoder)
635
519
{
636
519
  MCOperand_CreateImm0(Inst, Val + 1);
637
638
519
  return MCDisassembler_Success;
639
519
}
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
38.7k
{
648
38.7k
  uint32_t insn;
649
38.7k
  DecodeStatus result;
650
651
38.7k
  if (code_len < 4) {
652
296
    *size = 0;
653
296
    return MCDisassembler_Fail;
654
296
  }
655
656
38.4k
  if (MI->flat_insn->detail)
657
38.4k
    memset(MI->flat_insn->detail, 0,
658
38.4k
           offsetof(cs_detail, tms320c64x) + sizeof(cs_tms320c64x));
659
660
38.4k
  insn = readBytes32(MI, code);
661
38.4k
  result =
662
38.4k
    decodeInstruction_4(DecoderTable32, MI, insn, address, info, 0);
663
664
38.4k
  if (result == MCDisassembler_Success) {
665
38.1k
    *size = 4;
666
38.1k
    return true;
667
38.1k
  }
668
669
286
  MCInst_clear(MI);
670
286
  *size = 0;
671
286
  return false;
672
38.4k
}
673
674
void TMS320C64x_init(MCRegisterInfo *MRI)
675
824
{
676
824
  MCRegisterInfo_InitMCRegisterInfo(MRI, TMS320C64xRegDesc, 90, 0, 0,
677
824
            TMS320C64xMCRegisterClasses, 7, 0, 0,
678
824
            TMS320C64xRegDiffLists, 0,
679
824
            TMS320C64xSubRegIdxLists, 1, 0);
680
824
}
681
682
#endif