Coverage Report

Created: 2026-07-25 10:20

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
54.6k
#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
43.9k
{
73
43.9k
  disassemble_info *info = (disassemble_info *) dis_info;
74
75
43.9k
  (*info->fprintf_func) (info->stream, "#");
76
43.9k
  (*info->fprintf_func) (info->stream, "%ld", value);
77
43.9k
}
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
17.4k
{
89
17.4k
  disassemble_info *info = (disassemble_info *) dis_info;
90
91
17.4k
  (*info->fprintf_func) (info->stream, "#");
92
17.4k
  (*info->fprintf_func) (info->stream, "0x%lx", value);
93
17.4k
}
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
1.45k
{
105
1.45k
  disassemble_info *info = (disassemble_info *) dis_info;
106
107
1.45k
  (*info->fprintf_func) (info->stream, "#");
108
1.45k
}
109
110
#undef  CGEN_PRINT_INSN
111
191k
#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
191k
{
118
191k
  bfd_byte buffer[CGEN_MAX_INSN_SIZE];
119
191k
  bfd_byte *buf = buffer;
120
191k
  int status;
121
191k
  int buflen = (pc & 3) == 0 ? 4 : 2;
122
191k
  int big_p = CGEN_CPU_INSN_ENDIAN (cd) == CGEN_ENDIAN_BIG;
123
191k
  bfd_byte *x;
124
125
  /* Read the base part of the insn.  */
126
127
191k
  status = (*info->read_memory_func) (pc - ((!big_p && (pc & 3) != 0) ? 2 : 0),
128
191k
              buf, buflen, info);
129
191k
  if (status != 0)
130
211
    {
131
211
      (*info->memory_error_func) (status, pc, info);
132
211
      return -1;
133
211
    }
134
135
  /* 32 bit insn?  */
136
191k
  x = (big_p ? &buf[0] : &buf[3]);
137
191k
  if ((pc & 3) == 0 && (*x & 0x80) != 0)
138
62.5k
    return print_insn (cd, pc, info, buf, buflen);
139
140
  /* Print the first insn.  */
141
128k
  if ((pc & 3) == 0)
142
119k
    {
143
119k
      buf += (big_p ? 0 : 2);
144
119k
      if (print_insn (cd, pc, info, buf, 2) == 0)
145
11.4k
  (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
146
119k
      buf += (big_p ? 2 : -2);
147
119k
    }
148
149
128k
  x = (big_p ? &buf[0] : &buf[1]);
150
128k
  if (*x & 0x80)
151
31.6k
    {
152
      /* Parallel.  */
153
31.6k
      (*info->fprintf_func) (info->stream, " || ");
154
31.6k
      *x &= 0x7f;
155
31.6k
    }
156
97.0k
  else
157
97.0k
    (*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
128k
  if (print_insn (cd, pc & ~ (bfd_vma) 3, info, buf, 2) == 0)
163
12.5k
    (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
164
165
128k
  return (pc & 3) ? 2 : 4;
166
191k
}
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
499k
{
197
499k
  disassemble_info *info = (disassemble_info *) xinfo;
198
199
499k
  switch (opindex)
200
499k
    {
201
5.32k
    case M32R_OPERAND_ACC :
202
5.32k
      print_keyword (cd, info, & m32r_cgen_opval_h_accums, fields->f_acc, 0);
203
5.32k
      break;
204
603
    case M32R_OPERAND_ACCD :
205
603
      print_keyword (cd, info, & m32r_cgen_opval_h_accums, fields->f_accd, 0);
206
603
      break;
207
1.32k
    case M32R_OPERAND_ACCS :
208
1.32k
      print_keyword (cd, info, & m32r_cgen_opval_h_accums, fields->f_accs, 0);
209
1.32k
      break;
210
891
    case M32R_OPERAND_DCR :
211
891
      print_keyword (cd, info, & m32r_cgen_opval_cr_names, fields->f_r1, 0);
212
891
      break;
213
1.64k
    case M32R_OPERAND_DISP16 :
214
1.64k
      print_address (cd, info, fields->f_disp16, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
215
1.64k
      break;
216
13.4k
    case M32R_OPERAND_DISP24 :
217
13.4k
      print_address (cd, info, fields->f_disp24, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
218
13.4k
      break;
219
11.3k
    case M32R_OPERAND_DISP8 :
220
11.3k
      print_address (cd, info, fields->f_disp8, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
221
11.3k
      break;
222
175k
    case M32R_OPERAND_DR :
223
175k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r1, 0);
224
175k
      break;
225
1.45k
    case M32R_OPERAND_HASH :
226
1.45k
      print_hash (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
227
1.45k
      break;
228
380
    case M32R_OPERAND_HI16 :
229
380
      print_normal (cd, info, fields->f_hi16, 0|(1<<CGEN_OPERAND_SIGN_OPT), pc, length);
230
380
      break;
231
446
    case M32R_OPERAND_IMM1 :
232
446
      print_unsigned_with_hash_prefix (cd, info, fields->f_imm1, 0, pc, length);
233
446
      break;
234
998
    case M32R_OPERAND_SCR :
235
998
      print_keyword (cd, info, & m32r_cgen_opval_cr_names, fields->f_r2, 0);
236
998
      break;
237
3.31k
    case M32R_OPERAND_SIMM16 :
238
3.31k
      print_signed_with_hash_prefix (cd, info, fields->f_simm16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
239
3.31k
      break;
240
40.6k
    case M32R_OPERAND_SIMM8 :
241
40.6k
      print_signed_with_hash_prefix (cd, info, fields->f_simm8, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
242
40.6k
      break;
243
5.25k
    case M32R_OPERAND_SLO16 :
244
5.25k
      print_normal (cd, info, fields->f_simm16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
245
5.25k
      break;
246
123k
    case M32R_OPERAND_SR :
247
123k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r2, 0);
248
123k
      break;
249
44.1k
    case M32R_OPERAND_SRC1 :
250
44.1k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r1, 0);
251
44.1k
      break;
252
45.2k
    case M32R_OPERAND_SRC2 :
253
45.2k
      print_keyword (cd, info, & m32r_cgen_opval_gr_names, fields->f_r2, 0);
254
45.2k
      break;
255
852
    case M32R_OPERAND_UIMM16 :
256
852
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm16, 0, pc, length);
257
852
      break;
258
5.98k
    case M32R_OPERAND_UIMM24 :
259
5.98k
      print_address (cd, info, fields->f_uimm24, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
260
5.98k
      break;
261
4.42k
    case M32R_OPERAND_UIMM3 :
262
4.42k
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm3, 0, pc, length);
263
4.42k
      break;
264
422
    case M32R_OPERAND_UIMM4 :
265
422
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm4, 0, pc, length);
266
422
      break;
267
8.32k
    case M32R_OPERAND_UIMM5 :
268
8.32k
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm5, 0, pc, length);
269
8.32k
      break;
270
2.99k
    case M32R_OPERAND_UIMM8 :
271
2.99k
      print_unsigned_with_hash_prefix (cd, info, fields->f_uimm8, 0, pc, length);
272
2.99k
      break;
273
691
    case M32R_OPERAND_ULO16 :
274
691
      print_normal (cd, info, fields->f_uimm16, 0, pc, length);
275
691
      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
499k
  }
284
499k
}
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
6.32k
{
312
6.32k
  disassemble_info *info = (disassemble_info *) dis_info;
313
314
  /* Print the operand as directed by the attributes.  */
315
6.32k
  if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
316
0
    ; /* nothing to do */
317
6.32k
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
318
5.25k
    (*info->fprintf_func) (info->stream, "%ld", value);
319
1.07k
  else
320
1.07k
    (*info->fprintf_func) (info->stream, "0x%lx", value);
321
6.32k
}
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
32.4k
{
333
32.4k
  disassemble_info *info = (disassemble_info *) dis_info;
334
335
  /* Print the operand as directed by the attributes.  */
336
32.4k
  if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
337
0
    ; /* Nothing to do.  */
338
32.4k
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
339
26.4k
    (*info->print_address_func) (value, info);
340
5.98k
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
341
5.98k
    (*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
32.4k
}
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
397k
{
357
397k
  disassemble_info *info = (disassemble_info *) dis_info;
358
397k
  const CGEN_KEYWORD_ENTRY *ke;
359
360
397k
  ke = cgen_keyword_lookup_value (keyword_table, value);
361
397k
  if (ke != NULL)
362
396k
    (*info->fprintf_func) (info->stream, "%s", ke->name);
363
1.28k
  else
364
1.28k
    (*info->fprintf_func) (info->stream, "???");
365
397k
}
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
255k
{
380
255k
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
381
255k
  disassemble_info *info = (disassemble_info *) dis_info;
382
255k
  const CGEN_SYNTAX_CHAR_TYPE *syn;
383
384
255k
  CGEN_INIT_PRINT (cd);
385
386
1.54M
  for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
387
1.28M
    {
388
1.28M
      if (CGEN_SYNTAX_MNEMONIC_P (*syn))
389
255k
  {
390
255k
    (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
391
255k
    continue;
392
255k
  }
393
1.03M
      if (CGEN_SYNTAX_CHAR_P (*syn))
394
534k
  {
395
534k
    (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
396
534k
    continue;
397
534k
  }
398
399
      /* We have an operand.  */
400
499k
      m32r_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
401
499k
         fields, CGEN_INSN_ATTRS (insn), pc, length);
402
499k
    }
403
255k
}
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
310k
{
447
310k
  CGEN_INSN_INT insn_value;
448
310k
  const CGEN_INSN_LIST *insn_list;
449
310k
  CGEN_EXTRACT_INFO ex_info;
450
310k
  int basesize;
451
452
  /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
453
310k
  basesize = cd->base_insn_bitsize < buflen * 8 ?
454
310k
                                     cd->base_insn_bitsize : buflen * 8;
455
310k
  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
310k
  ex_info.valid = (1 << buflen) - 1;
462
310k
  ex_info.dis_info = info;
463
310k
  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
310k
  insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
469
657k
  while (insn_list != NULL)
470
602k
    {
471
602k
      const CGEN_INSN *insn = insn_list->insn;
472
602k
      CGEN_FIELDS fields;
473
602k
      int length;
474
602k
      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
602k
      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
602k
      else
497
602k
  insn_value_cropped = insn_value;
498
499
602k
      if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
500
602k
    == CGEN_INSN_BASE_VALUE (insn))
501
255k
  {
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
255k
    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
255k
    else
521
255k
      length = CGEN_EXTRACT_FN (cd, insn)
522
255k
        (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
523
524
    /* Length < 0 -> error.  */
525
255k
    if (length < 0)
526
0
      return length;
527
255k
    if (length > 0)
528
255k
      {
529
255k
        CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
530
        /* Length is in bits, result is in bytes.  */
531
255k
        return length / 8;
532
255k
      }
533
255k
  }
534
535
346k
      insn_list = CGEN_DIS_NEXT_INSN (insn_list);
536
346k
    }
537
538
54.6k
  return 0;
539
310k
}
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
191k
{
593
191k
  static cpu_desc_list *cd_list = 0;
594
191k
  cpu_desc_list *cl = 0;
595
191k
  static CGEN_CPU_DESC cd = 0;
596
191k
  static CGEN_BITSET *prev_isa;
597
191k
  static int prev_mach;
598
191k
  static int prev_endian;
599
191k
  static int prev_insn_endian;
600
191k
  int length;
601
191k
  CGEN_BITSET *isa;
602
191k
  int mach;
603
191k
  int endian = (info->endian == BFD_ENDIAN_BIG
604
191k
    ? CGEN_ENDIAN_BIG
605
191k
    : CGEN_ENDIAN_LITTLE);
606
191k
  int insn_endian = (info->endian_code == BFD_ENDIAN_BIG
607
191k
                     ? CGEN_ENDIAN_BIG
608
191k
                     : CGEN_ENDIAN_LITTLE);
609
191k
  enum bfd_architecture arch;
610
611
  /* ??? gdb will set mach but leave the architecture as "unknown" */
612
191k
#ifndef CGEN_BFD_ARCH
613
191k
#define CGEN_BFD_ARCH bfd_arch_m32r
614
191k
#endif
615
191k
  arch = info->arch;
616
191k
  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
191k
  mach = info->mach;
625
191k
#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
191k
  isa = info->private_data;
639
191k
#endif
640
641
  /* If we've switched cpu's, try to find a handle we've used before */
642
191k
  if (cd
643
191k
      && (cgen_bitset_compare (isa, prev_isa) != 0
644
191k
    || mach != prev_mach
645
31.1k
    || endian != prev_endian))
646
160k
    {
647
160k
      cd = 0;
648
408k
      for (cl = cd_list; cl; cl = cl->next)
649
408k
  {
650
408k
    if (cgen_bitset_compare (cl->isa, isa) == 0 &&
651
408k
        cl->mach == mach &&
652
160k
        cl->endian == endian)
653
160k
      {
654
160k
        cd = cl->cd;
655
160k
        prev_isa = cd->isas;
656
160k
        break;
657
160k
      }
658
408k
  }
659
160k
    }
660
661
  /* If we haven't initialized yet, initialize the opcode table.  */
662
191k
  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
191k
  length = CGEN_PRINT_INSN (cd, pc, info);
701
191k
  if (length > 0)
702
160k
    return length;
703
30.8k
  if (length < 0)
704
211
    return -1;
705
706
30.6k
  (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
707
30.6k
  return cd->default_insn_bitsize / 8;
708
30.8k
}