Coverage Report

Created: 2026-05-11 07:54

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/binutils-gdb/opcodes/m32r-dis.c
Line
Count
Source
1
/* DO NOT EDIT!  -*- buffer-read-only: t -*- vi:set ro:  */
2
/* Disassembler interface for targets using CGEN. -*- C -*-
3
   CGEN: Cpu tools GENerator
4
5
   THIS FILE IS MACHINE GENERATED WITH CGEN.
6
   - the resultant file is machine generated, cgen-dis.in isn't
7
8
   Copyright (C) 1996-2026 Free Software Foundation, Inc.
9
10
   This file is part of libopcodes.
11
12
   This library is free software; you can redistribute it and/or modify
13
   it under the terms of the GNU General Public License as published by
14
   the Free Software Foundation; either version 3, or (at your option)
15
   any later version.
16
17
   It is distributed in the hope that it will be useful, but WITHOUT
18
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
20
   License for more details.
21
22
   You should have received a copy of the GNU General Public License
23
   along with this program; if not, write to the Free Software Foundation, Inc.,
24
   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
25
26
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
27
   Keep that in mind.  */
28
29
#include "sysdep.h"
30
#include <stdio.h>
31
#include "ansidecl.h"
32
#include "disassemble.h"
33
#include "bfd.h"
34
#include "symcat.h"
35
#include "libiberty.h"
36
#include "m32r-desc.h"
37
#include "m32r-opc.h"
38
#include "opintl.h"
39
40
/* Default text to print if an instruction isn't recognized.  */
41
40.8k
#define UNKNOWN_INSN_MSG _("*unknown*")
42
43
static void print_normal
44
  (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
45
static void print_address
46
  (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
47
static void print_keyword
48
  (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
49
static void print_insn_normal
50
  (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
51
static int print_insn
52
  (CGEN_CPU_DESC, bfd_vma,  disassemble_info *, bfd_byte *, unsigned);
53
static int default_print_insn
54
  (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
55
static int read_insn
56
  (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
57
   unsigned long *);
58

59
/* -- disassembler routines inserted here.  */
60
61
/* -- dis.c */
62
63
/* Print signed operands with '#' prefixes.  */
64
65
static void
66
print_signed_with_hash_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
67
             void * dis_info,
68
             long value,
69
             unsigned int attrs ATTRIBUTE_UNUSED,
70
             bfd_vma pc ATTRIBUTE_UNUSED,
71
             int length ATTRIBUTE_UNUSED)
72
31.1k
{
73
31.1k
  disassemble_info *info = (disassemble_info *) dis_info;
74
75
31.1k
  (*info->fprintf_func) (info->stream, "#");
76
31.1k
  (*info->fprintf_func) (info->stream, "%ld", value);
77
31.1k
}
78
79
/* Print unsigned operands with '#' prefixes.  */
80
81
static void
82
print_unsigned_with_hash_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
83
         void * dis_info,
84
         long value,
85
         unsigned int attrs ATTRIBUTE_UNUSED,
86
         bfd_vma pc ATTRIBUTE_UNUSED,
87
         int length ATTRIBUTE_UNUSED)
88
11.9k
{
89
11.9k
  disassemble_info *info = (disassemble_info *) dis_info;
90
91
11.9k
  (*info->fprintf_func) (info->stream, "#");
92
11.9k
  (*info->fprintf_func) (info->stream, "0x%lx", value);
93
11.9k
}
94
95
/* Handle '#' prefixes as operands.  */
96
97
static void
98
print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
99
      void * dis_info,
100
      long value ATTRIBUTE_UNUSED,
101
      unsigned int attrs ATTRIBUTE_UNUSED,
102
      bfd_vma pc ATTRIBUTE_UNUSED,
103
      int length ATTRIBUTE_UNUSED)
104
1.30k
{
105
1.30k
  disassemble_info *info = (disassemble_info *) dis_info;
106
107
1.30k
  (*info->fprintf_func) (info->stream, "#");
108
1.30k
}
109
110
#undef  CGEN_PRINT_INSN
111
136k
#define CGEN_PRINT_INSN my_print_insn
112
113
static int
114
my_print_insn (CGEN_CPU_DESC cd,
115
         bfd_vma pc,
116
         disassemble_info *info)
117
136k
{
118
136k
  bfd_byte buffer[CGEN_MAX_INSN_SIZE];
119
136k
  bfd_byte *buf = buffer;
120
136k
  int status;
121
136k
  int buflen = (pc & 3) == 0 ? 4 : 2;
122
136k
  int big_p = CGEN_CPU_INSN_ENDIAN (cd) == CGEN_ENDIAN_BIG;
123
136k
  bfd_byte *x;
124
125
  /* Read the base part of the insn.  */
126
127
136k
  status = (*info->read_memory_func) (pc - ((!big_p && (pc & 3) != 0) ? 2 : 0),
128
136k
              buf, buflen, info);
129
136k
  if (status != 0)
130
140
    {
131
140
      (*info->memory_error_func) (status, pc, info);
132
140
      return -1;
133
140
    }
134
135
  /* 32 bit insn?  */
136
136k
  x = (big_p ? &buf[0] : &buf[3]);
137
136k
  if ((pc & 3) == 0 && (*x & 0x80) != 0)
138
46.0k
    return print_insn (cd, pc, info, buf, buflen);
139
140
  /* Print the first insn.  */
141
90.5k
  if ((pc & 3) == 0)
142
84.8k
    {
143
84.8k
      buf += (big_p ? 0 : 2);
144
84.8k
      if (print_insn (cd, pc, info, buf, 2) == 0)
145
8.40k
  (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
146
84.8k
      buf += (big_p ? 2 : -2);
147
84.8k
    }
148
149
90.5k
  x = (big_p ? &buf[0] : &buf[1]);
150
90.5k
  if (*x & 0x80)
151
23.9k
    {
152
      /* Parallel.  */
153
23.9k
      (*info->fprintf_func) (info->stream, " || ");
154
23.9k
      *x &= 0x7f;
155
23.9k
    }
156
66.5k
  else
157
66.5k
    (*info->fprintf_func) (info->stream, " -> ");
158
159
  /* The "& 3" is to pass a consistent address.
160
     Parallel insns arguably both begin on the word boundary.
161
     Also, branch insns are calculated relative to the word boundary.  */
162
90.5k
  if (print_insn (cd, pc & ~ (bfd_vma) 3, info, buf, 2) == 0)
163
9.80k
    (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
164
165
90.5k
  return (pc & 3) ? 2 : 4;
166
136k
}
167
168
/* -- */
169
170
void m32r_cgen_print_operand
171
  (CGEN_CPU_DESC, int, void *, CGEN_FIELDS *, void const *, bfd_vma, int);
172
173
/* Main entry point for printing operands.
174
   XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
175
   of dis-asm.h on cgen.h.
176
177
   This function is basically just a big switch statement.  Earlier versions
178
   used tables to look up the function to use, but
179
   - if the table contains both assembler and disassembler functions then
180
     the disassembler contains much of the assembler and vice-versa,
181
   - there's a lot of inlining possibilities as things grow,
182
   - using a switch statement avoids the function call overhead.
183
184
   This function could be moved into `print_insn_normal', but keeping it
185
   separate makes clear the interface between `print_insn_normal' and each of
186
   the handlers.  */
187
188
void
189
m32r_cgen_print_operand (CGEN_CPU_DESC cd,
190
         int opindex,
191
         void * xinfo,
192
         CGEN_FIELDS *fields,
193
         void const *attrs ATTRIBUTE_UNUSED,
194
         bfd_vma pc,
195
         int length)
196
354k
{
197
354k
  disassemble_info *info = (disassemble_info *) xinfo;
198
199
354k
  switch (opindex)
200
354k
    {
201
3.56k
    case M32R_OPERAND_ACC :
202
3.56k
      print_keyword (cd, info, & m32r_cgen_opval_h_accums, fields->f_acc, 0);
203
3.56k
      break;
204
313
    case M32R_OPERAND_ACCD :
205
313
      print_keyword (cd, info, & m32r_cgen_opval_h_accums, fields->f_accd, 0);
206
313
      break;
207
728
    case M32R_OPERAND_ACCS :
208
728
      print_keyword (cd, info, & m32r_cgen_opval_h_accums, fields->f_accs, 0);
209
728
      break;
210
469
    case M32R_OPERAND_DCR :
211
469
      print_keyword (cd, info, & m32r_cgen_opval_cr_names, fields->f_r1, 0);
212
469
      break;
213
1.12k
    case M32R_OPERAND_DISP16 :
214
1.12k
      print_address (cd, info, fields->f_disp16, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
215
1.12k
      break;
216
8.78k
    case M32R_OPERAND_DISP24 :
217
8.78k
      print_address (cd, info, fields->f_disp24, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
218
8.78k
      break;
219
7.52k
    case M32R_OPERAND_DISP8 :
220
7.52k
      print_address (cd, info, fields->f_disp8, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
221
7.52k
      break;
222
125k
    case M32R_OPERAND_DR :
223
125k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r1, 0);
224
125k
      break;
225
1.30k
    case M32R_OPERAND_HASH :
226
1.30k
      print_hash (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
227
1.30k
      break;
228
286
    case M32R_OPERAND_HI16 :
229
286
      print_normal (cd, info, fields->f_hi16, 0|(1<<CGEN_OPERAND_SIGN_OPT), pc, length);
230
286
      break;
231
128
    case M32R_OPERAND_IMM1 :
232
128
      print_unsigned_with_hash_prefix (cd, info, fields->f_imm1, 0, pc, length);
233
128
      break;
234
786
    case M32R_OPERAND_SCR :
235
786
      print_keyword (cd, info, & m32r_cgen_opval_cr_names, fields->f_r2, 0);
236
786
      break;
237
2.33k
    case M32R_OPERAND_SIMM16 :
238
2.33k
      print_signed_with_hash_prefix (cd, info, fields->f_simm16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
239
2.33k
      break;
240
28.8k
    case M32R_OPERAND_SIMM8 :
241
28.8k
      print_signed_with_hash_prefix (cd, info, fields->f_simm8, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
242
28.8k
      break;
243
4.63k
    case M32R_OPERAND_SLO16 :
244
4.63k
      print_normal (cd, info, fields->f_simm16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
245
4.63k
      break;
246
87.9k
    case M32R_OPERAND_SR :
247
87.9k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r2, 0);
248
87.9k
      break;
249
31.3k
    case M32R_OPERAND_SRC1 :
250
31.3k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r1, 0);
251
31.3k
      break;
252
32.1k
    case M32R_OPERAND_SRC2 :
253
32.1k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r2, 0);
254
32.1k
      break;
255
473
    case M32R_OPERAND_UIMM16 :
256
473
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm16, 0, pc, length);
257
473
      break;
258
4.91k
    case M32R_OPERAND_UIMM24 :
259
4.91k
      print_address (cd, info, fields->f_uimm24, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
260
4.91k
      break;
261
3.04k
    case M32R_OPERAND_UIMM3 :
262
3.04k
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm3, 0, pc, length);
263
3.04k
      break;
264
179
    case M32R_OPERAND_UIMM4 :
265
179
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm4, 0, pc, length);
266
179
      break;
267
5.90k
    case M32R_OPERAND_UIMM5 :
268
5.90k
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm5, 0, pc, length);
269
5.90k
      break;
270
2.21k
    case M32R_OPERAND_UIMM8 :
271
2.21k
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm8, 0, pc, length);
272
2.21k
      break;
273
588
    case M32R_OPERAND_ULO16 :
274
588
      print_normal (cd, info, fields->f_uimm16, 0, pc, length);
275
588
      break;
276
277
0
    default :
278
      /* xgettext:c-format */
279
0
      opcodes_error_handler
280
0
  (_("internal error: unrecognized field %d while printing insn"),
281
0
   opindex);
282
0
      abort ();
283
354k
  }
284
354k
}
285
286
cgen_print_fn * const m32r_cgen_print_handlers[] =
287
{
288
  print_insn_normal,
289
};
290
291
292
void
293
m32r_cgen_init_dis (CGEN_CPU_DESC cd)
294
6
{
295
6
  m32r_cgen_init_opcode_table (cd);
296
6
  m32r_cgen_init_ibld_table (cd);
297
6
  cd->print_handlers = & m32r_cgen_print_handlers[0];
298
6
  cd->print_operand = m32r_cgen_print_operand;
299
6
}
300
301

302
/* Default print handler.  */
303
304
static void
305
print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
306
        void *dis_info,
307
        long value,
308
        unsigned int attrs,
309
        bfd_vma pc ATTRIBUTE_UNUSED,
310
        int length ATTRIBUTE_UNUSED)
311
5.51k
{
312
5.51k
  disassemble_info *info = (disassemble_info *) dis_info;
313
314
  /* Print the operand as directed by the attributes.  */
315
5.51k
  if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
316
0
    ; /* nothing to do */
317
5.51k
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
318
4.63k
    (*info->fprintf_func) (info->stream, "%ld", value);
319
874
  else
320
874
    (*info->fprintf_func) (info->stream, "0x%lx", value);
321
5.51k
}
322
323
/* Default address handler.  */
324
325
static void
326
print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
327
         void *dis_info,
328
         bfd_vma value,
329
         unsigned int attrs,
330
         bfd_vma pc ATTRIBUTE_UNUSED,
331
         int length ATTRIBUTE_UNUSED)
332
22.3k
{
333
22.3k
  disassemble_info *info = (disassemble_info *) dis_info;
334
335
  /* Print the operand as directed by the attributes.  */
336
22.3k
  if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
337
0
    ; /* Nothing to do.  */
338
22.3k
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
339
17.4k
    (*info->print_address_func) (value, info);
340
4.91k
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
341
4.91k
    (*info->print_address_func) (value, info);
342
0
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
343
0
    (*info->fprintf_func) (info->stream, "%ld", (long) value);
344
0
  else
345
0
    (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
346
22.3k
}
347
348
/* Keyword print handler.  */
349
350
static void
351
print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
352
         void *dis_info,
353
         CGEN_KEYWORD *keyword_table,
354
         long value,
355
         unsigned int attrs ATTRIBUTE_UNUSED)
356
282k
{
357
282k
  disassemble_info *info = (disassemble_info *) dis_info;
358
282k
  const CGEN_KEYWORD_ENTRY *ke;
359
360
282k
  ke = cgen_keyword_lookup_value (keyword_table, value);
361
282k
  if (ke != NULL)
362
282k
    (*info->fprintf_func) (info->stream, "%s", ke->name);
363
406
  else
364
406
    (*info->fprintf_func) (info->stream, "???");
365
282k
}
366

367
/* Default insn printer.
368
369
   DIS_INFO is defined as `void *' so the disassembler needn't know anything
370
   about disassemble_info.  */
371
372
static void
373
print_insn_normal (CGEN_CPU_DESC cd,
374
       void *dis_info,
375
       const CGEN_INSN *insn,
376
       CGEN_FIELDS *fields,
377
       bfd_vma pc,
378
       int length)
379
180k
{
380
180k
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
381
180k
  disassemble_info *info = (disassemble_info *) dis_info;
382
180k
  const CGEN_SYNTAX_CHAR_TYPE *syn;
383
384
180k
  CGEN_INIT_PRINT (cd);
385
386
1.09M
  for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
387
917k
    {
388
917k
      if (CGEN_SYNTAX_MNEMONIC_P (*syn))
389
180k
  {
390
180k
    (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
391
180k
    continue;
392
180k
  }
393
736k
      if (CGEN_SYNTAX_CHAR_P (*syn))
394
381k
  {
395
381k
    (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
396
381k
    continue;
397
381k
  }
398
399
      /* We have an operand.  */
400
354k
      m32r_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
401
354k
         fields, CGEN_INSN_ATTRS (insn), pc, length);
402
354k
    }
403
180k
}
404

405
/* Subroutine of print_insn. Reads an insn into the given buffers and updates
406
   the extract info.
407
   Returns 0 if all is well, non-zero otherwise.  */
408
409
static int
410
read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
411
     bfd_vma pc,
412
     disassemble_info *info,
413
     bfd_byte *buf,
414
     int buflen,
415
     CGEN_EXTRACT_INFO *ex_info,
416
     unsigned long *insn_value)
417
0
{
418
0
  int status = (*info->read_memory_func) (pc, buf, buflen, info);
419
420
0
  if (status != 0)
421
0
    {
422
0
      (*info->memory_error_func) (status, pc, info);
423
0
      return -1;
424
0
    }
425
426
0
  ex_info->dis_info = info;
427
0
  ex_info->valid = (1 << buflen) - 1;
428
0
  ex_info->insn_bytes = buf;
429
430
0
  *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
431
0
  return 0;
432
0
}
433
434
/* Utility to print an insn.
435
   BUF is the base part of the insn, target byte order, BUFLEN bytes long.
436
   The result is the size of the insn in bytes or zero for an unknown insn
437
   or -1 if an error occurs fetching data (memory_error_func will have
438
   been called).  */
439
440
static int
441
print_insn (CGEN_CPU_DESC cd,
442
      bfd_vma pc,
443
      disassemble_info *info,
444
      bfd_byte *buf,
445
      unsigned int buflen)
446
221k
{
447
221k
  CGEN_INSN_INT insn_value;
448
221k
  const CGEN_INSN_LIST *insn_list;
449
221k
  CGEN_EXTRACT_INFO ex_info;
450
221k
  int basesize;
451
452
  /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
453
221k
  basesize = cd->base_insn_bitsize < buflen * 8 ?
454
221k
                                     cd->base_insn_bitsize : buflen * 8;
455
221k
  insn_value = cgen_get_insn_value (cd, buf, basesize, cd->insn_endian);
456
457
458
  /* Fill in ex_info fields like read_insn would.  Don't actually call
459
     read_insn, since the incoming buffer is already read (and possibly
460
     modified a la m32r).  */
461
221k
  ex_info.valid = (1 << buflen) - 1;
462
221k
  ex_info.dis_info = info;
463
221k
  ex_info.insn_bytes = buf;
464
465
  /* The instructions are stored in hash lists.
466
     Pick the first one and keep trying until we find the right one.  */
467
468
221k
  insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
469
476k
  while (insn_list != NULL)
470
436k
    {
471
436k
      const CGEN_INSN *insn = insn_list->insn;
472
436k
      CGEN_FIELDS fields;
473
436k
      int length;
474
436k
      unsigned long insn_value_cropped;
475
476
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
477
      /* Not needed as insn shouldn't be in hash lists if not supported.  */
478
      /* Supported by this cpu?  */
479
      if (! m32r_cgen_insn_supported (cd, insn))
480
        {
481
          insn_list = CGEN_DIS_NEXT_INSN (insn_list);
482
    continue;
483
        }
484
#endif
485
486
      /* Basic bit mask must be correct.  */
487
      /* ??? May wish to allow target to defer this check until the extract
488
   handler.  */
489
490
      /* Base size may exceed this instruction's size.  Extract the
491
         relevant part from the buffer. */
492
436k
      if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
493
0
    (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
494
0
  insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
495
0
             info->endian == BFD_ENDIAN_BIG);
496
436k
      else
497
436k
  insn_value_cropped = insn_value;
498
499
436k
      if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
500
436k
    == CGEN_INSN_BASE_VALUE (insn))
501
180k
  {
502
    /* Printing is handled in two passes.  The first pass parses the
503
       machine insn and extracts the fields.  The second pass prints
504
       them.  */
505
506
    /* Make sure the entire insn is loaded into insn_value, if it
507
       can fit.  */
508
180k
    if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
509
0
        (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
510
0
      {
511
0
        unsigned long full_insn_value;
512
0
        int rc = read_insn (cd, pc, info, buf,
513
0
          CGEN_INSN_BITSIZE (insn) / 8,
514
0
          & ex_info, & full_insn_value);
515
0
        if (rc != 0)
516
0
    return rc;
517
0
        length = CGEN_EXTRACT_FN (cd, insn)
518
0
    (cd, insn, &ex_info, full_insn_value, &fields, pc);
519
0
      }
520
180k
    else
521
180k
      length = CGEN_EXTRACT_FN (cd, insn)
522
180k
        (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
523
524
    /* Length < 0 -> error.  */
525
180k
    if (length < 0)
526
0
      return length;
527
180k
    if (length > 0)
528
180k
      {
529
180k
        CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
530
        /* Length is in bits, result is in bytes.  */
531
180k
        return length / 8;
532
180k
      }
533
180k
  }
534
535
255k
      insn_list = CGEN_DIS_NEXT_INSN (insn_list);
536
255k
    }
537
538
40.8k
  return 0;
539
221k
}
540
541
/* Default value for CGEN_PRINT_INSN.
542
   The result is the size of the insn in bytes or zero for an unknown insn
543
   or -1 if an error occured fetching bytes.  */
544
545
#ifndef CGEN_PRINT_INSN
546
#define CGEN_PRINT_INSN default_print_insn
547
#endif
548
549
static int
550
default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
551
0
{
552
0
  bfd_byte buf[CGEN_MAX_INSN_SIZE];
553
0
  int buflen;
554
0
  int status;
555
0
556
0
  /* Attempt to read the base part of the insn.  */
557
0
  buflen = cd->base_insn_bitsize / 8;
558
0
  status = (*info->read_memory_func) (pc, buf, buflen, info);
559
0
560
0
  /* Try again with the minimum part, if min < base.  */
561
0
  if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
562
0
    {
563
0
      buflen = cd->min_insn_bitsize / 8;
564
0
      status = (*info->read_memory_func) (pc, buf, buflen, info);
565
0
    }
566
0
567
0
  if (status != 0)
568
0
    {
569
0
      (*info->memory_error_func) (status, pc, info);
570
0
      return -1;
571
0
    }
572
0
573
0
  return print_insn (cd, pc, info, buf, buflen);
574
0
}
575
576
/* Main entry point.
577
   Print one instruction from PC on INFO->STREAM.
578
   Return the size of the instruction (in bytes).  */
579
580
typedef struct cpu_desc_list
581
{
582
  struct cpu_desc_list *next;
583
  CGEN_BITSET *isa;
584
  int mach;
585
  int endian;
586
  int insn_endian;
587
  CGEN_CPU_DESC cd;
588
} cpu_desc_list;
589
590
int
591
print_insn_m32r (bfd_vma pc, disassemble_info *info)
592
136k
{
593
136k
  static cpu_desc_list *cd_list = 0;
594
136k
  cpu_desc_list *cl = 0;
595
136k
  static CGEN_CPU_DESC cd = 0;
596
136k
  static CGEN_BITSET *prev_isa;
597
136k
  static int prev_mach;
598
136k
  static int prev_endian;
599
136k
  static int prev_insn_endian;
600
136k
  int length;
601
136k
  CGEN_BITSET *isa;
602
136k
  int mach;
603
136k
  int endian = (info->endian == BFD_ENDIAN_BIG
604
136k
    ? CGEN_ENDIAN_BIG
605
136k
    : CGEN_ENDIAN_LITTLE);
606
136k
  int insn_endian = (info->endian_code == BFD_ENDIAN_BIG
607
136k
                     ? CGEN_ENDIAN_BIG
608
136k
                     : CGEN_ENDIAN_LITTLE);
609
136k
  enum bfd_architecture arch;
610
611
  /* ??? gdb will set mach but leave the architecture as "unknown" */
612
136k
#ifndef CGEN_BFD_ARCH
613
136k
#define CGEN_BFD_ARCH bfd_arch_m32r
614
136k
#endif
615
136k
  arch = info->arch;
616
136k
  if (arch == bfd_arch_unknown)
617
0
    arch = CGEN_BFD_ARCH;
618
619
  /* There's no standard way to compute the machine or isa number
620
     so we leave it to the target.  */
621
#ifdef CGEN_COMPUTE_MACH
622
  mach = CGEN_COMPUTE_MACH (info);
623
#else
624
136k
  mach = info->mach;
625
136k
#endif
626
627
#ifdef CGEN_COMPUTE_ISA
628
  {
629
    static CGEN_BITSET *permanent_isa;
630
631
    if (!permanent_isa)
632
      permanent_isa = cgen_bitset_create (MAX_ISAS);
633
    isa = permanent_isa;
634
    cgen_bitset_clear (isa);
635
    cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
636
  }
637
#else
638
136k
  isa = info->private_data;
639
136k
#endif
640
641
  /* If we've switched cpu's, try to find a handle we've used before */
642
136k
  if (cd
643
136k
      && (cgen_bitset_compare (isa, prev_isa) != 0
644
136k
    || mach != prev_mach
645
40.1k
    || endian != prev_endian))
646
96.6k
    {
647
96.6k
      cd = 0;
648
289k
      for (cl = cd_list; cl; cl = cl->next)
649
289k
  {
650
289k
    if (cgen_bitset_compare (cl->isa, isa) == 0 &&
651
289k
        cl->mach == mach &&
652
96.6k
        cl->endian == endian)
653
96.6k
      {
654
96.6k
        cd = cl->cd;
655
96.6k
        prev_isa = cd->isas;
656
96.6k
        break;
657
96.6k
      }
658
289k
  }
659
96.6k
    }
660
661
  /* If we haven't initialized yet, initialize the opcode table.  */
662
136k
  if (! cd)
663
6
    {
664
6
      const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
665
6
      const char *mach_name;
666
667
6
      if (!arch_type)
668
0
  abort ();
669
6
      mach_name = arch_type->printable_name;
670
671
6
      prev_isa = cgen_bitset_copy (isa);
672
6
      prev_mach = mach;
673
6
      prev_endian = endian;
674
6
      prev_insn_endian = insn_endian;
675
6
      cd = m32r_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
676
6
         CGEN_CPU_OPEN_BFDMACH, mach_name,
677
6
         CGEN_CPU_OPEN_ENDIAN, prev_endian,
678
6
                                 CGEN_CPU_OPEN_INSN_ENDIAN, prev_insn_endian,
679
6
         CGEN_CPU_OPEN_END);
680
6
      if (!cd)
681
0
  abort ();
682
683
      /* Save this away for future reference.  */
684
6
      cl = xmalloc (sizeof (struct cpu_desc_list));
685
6
      cl->cd = cd;
686
6
      cl->isa = prev_isa;
687
6
      cl->mach = mach;
688
6
      cl->endian = endian;
689
6
      cl->next = cd_list;
690
6
      cd_list = cl;
691
692
6
      m32r_cgen_init_dis (cd);
693
6
    }
694
695
  /* We try to have as much common code as possible.
696
     But at this point some targets need to take over.  */
697
  /* ??? Some targets may need a hook elsewhere.  Try to avoid this,
698
     but if not possible try to move this hook elsewhere rather than
699
     have two hooks.  */
700
136k
  length = CGEN_PRINT_INSN (cd, pc, info);
701
136k
  if (length > 0)
702
113k
    return length;
703
22.8k
  if (length < 0)
704
140
    return -1;
705
706
22.6k
  (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
707
22.6k
  return cd->default_insn_bitsize / 8;
708
22.8k
}