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[/] [or1k/] [tags/] [start/] [gdb-5.0/] [opcodes/] [i960-dis.c] - Blame information for rev 1778

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1 106 markom
/* Disassemble i80960 instructions.
2
   Copyright (C) 1990, 91, 93, 94, 95, 96, 1998 Free Software Foundation, Inc.
3
 
4
This program is free software; you can redistribute it and/or modify
5
it under the terms of the GNU General Public License as published by
6
the Free Software Foundation; either version 2, or (at your option)
7
any later version.
8
 
9
This program is distributed in the hope that it will be useful,
10
but WITHOUT ANY WARRANTY; without even the implied warranty of
11
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
GNU General Public License for more details.
13
 
14
You should have received a copy of the GNU General Public License
15
along with this program; see the file COPYING.  If not, write to the
16
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
17
02111-1307, USA.  */
18
 
19
#include "dis-asm.h"
20
 
21
static const char *const reg_names[] = {
22
/*  0 */        "pfp", "sp",  "rip", "r3",  "r4",  "r5",  "r6",  "r7",
23
/*  8 */        "r8",  "r9",  "r10", "r11", "r12", "r13", "r14", "r15",
24
/* 16 */        "g0",  "g1",  "g2",  "g3",  "g4",  "g5",  "g6",  "g7",
25
/* 24 */        "g8",  "g9",  "g10", "g11", "g12", "g13", "g14", "fp",
26
/* 32 */        "pc",  "ac",  "ip",  "tc",  "fp0", "fp1", "fp2", "fp3"
27
};
28
 
29
 
30
static FILE *stream;            /* Output goes here */
31
static struct disassemble_info *info;
32
static void print_addr();
33
static void ctrl();
34
static void cobr();
35
static void reg();
36
static int mem();
37
static void ea();
38
static void dstop();
39
static void regop();
40
static void invalid();
41
static int pinsn();
42
static void put_abs();
43
 
44
 
45
/* Print the i960 instruction at address 'memaddr' in debugged memory,
46
   on INFO->STREAM.  Returns length of the instruction, in bytes.  */
47
 
48
int
49
print_insn_i960 (memaddr, info_arg)
50
    bfd_vma memaddr;
51
    struct disassemble_info *info_arg;
52
{
53
  unsigned int word1, word2 = 0xdeadbeef;
54
  bfd_byte buffer[8];
55
  int status;
56
 
57
  info = info_arg;
58
  stream = info->stream;
59
 
60
  /* Read word1.  Only read word2 if the instruction
61
     needs it, to prevent reading past the end of a section.  */
62
 
63
  status = (*info->read_memory_func) (memaddr, (bfd_byte *) buffer, 4, info);
64
  if (status != 0)
65
    {
66
      (*info->memory_error_func) (status, memaddr, info);
67
      return -1;
68
    }
69
 
70
  word1 = bfd_getl32 (buffer);
71
 
72
  /* Divide instruction set into classes based on high 4 bits of opcode.  */
73
  switch ( (word1 >> 28) & 0xf )
74
    {
75
    default:
76
      break;
77
    case 0x8:
78
    case 0x9:
79
    case 0xa:
80
    case 0xb:
81
    case 0xc:
82
      /* Read word2.  */
83
      status = (*info->read_memory_func)
84
        (memaddr + 4, (bfd_byte *) (buffer + 4), 4, info);
85
      if (status != 0)
86
        {
87
          (*info->memory_error_func) (status, memaddr, info);
88
          return -1;
89
        }
90
      word2 = bfd_getl32 (buffer + 4);
91
      break;
92
    }
93
 
94
  return pinsn( memaddr, word1, word2 );
95
}
96
 
97
#define IN_GDB
98
 
99
/*****************************************************************************
100
 *      All code below this point should be identical with that of
101
 *      the disassembler in gdmp960.
102
 
103
 A noble sentiment, but at least in cosmetic ways (info->fprintf_func), it
104
 just ain't so. -kingdon, 31 Mar 93
105
 *****************************************************************************/
106
 
107
struct tabent {
108
  char *name;
109
  short numops;
110
};
111
 
112
struct sparse_tabent {
113
  int opcode;
114
  char *name;
115
  short numops;
116
};
117
 
118
static int
119
pinsn( memaddr, word1, word2 )
120
    bfd_vma memaddr;
121
    unsigned long word1, word2;
122
{
123
        int instr_len;
124
 
125
        instr_len = 4;
126
        put_abs( word1, word2 );
127
 
128
        /* Divide instruction set into classes based on high 4 bits of opcode*/
129
        switch ( (word1 >> 28) & 0xf ){
130
        case 0x0:
131
        case 0x1:
132
                ctrl( memaddr, word1, word2 );
133
                break;
134
        case 0x2:
135
        case 0x3:
136
                cobr( memaddr, word1, word2 );
137
                break;
138
        case 0x5:
139
        case 0x6:
140
        case 0x7:
141
                reg( word1 );
142
                break;
143
        case 0x8:
144
        case 0x9:
145
        case 0xa:
146
        case 0xb:
147
        case 0xc:
148
                instr_len = mem( memaddr, word1, word2, 0 );
149
                break;
150
        default:
151
                /* invalid instruction, print as data word */
152
                invalid( word1 );
153
                break;
154
        }
155
        return instr_len;
156
}
157
 
158
/****************************************/
159
/* CTRL format                          */
160
/****************************************/
161
static void
162
ctrl( memaddr, word1, word2 )
163
    bfd_vma memaddr;
164
    unsigned long word1, word2;
165
{
166
        int i;
167
        static const struct tabent ctrl_tab[] = {
168
          { NULL,               0, },    /* 0x00 */
169
          { NULL,               0, },    /* 0x01 */
170
          { NULL,               0, },    /* 0x02 */
171
          { NULL,               0, },    /* 0x03 */
172
          { NULL,               0, },    /* 0x04 */
173
          { NULL,               0, },    /* 0x05 */
174
          { NULL,               0, },    /* 0x06 */
175
          { NULL,               0, },    /* 0x07 */
176
          { "b",                1, },   /* 0x08 */
177
          { "call",             1, },   /* 0x09 */
178
          { "ret",              0, },    /* 0x0a */
179
          { "bal",              1, },   /* 0x0b */
180
          { NULL,               0, },    /* 0x0c */
181
          { NULL,               0, },    /* 0x0d */
182
          { NULL,               0, },    /* 0x0e */
183
          { NULL,               0, },    /* 0x0f */
184
          { "bno",              1, },   /* 0x10 */
185
          { "bg",               1, },   /* 0x11 */
186
          { "be",               1, },   /* 0x12 */
187
          { "bge",              1, },   /* 0x13 */
188
          { "bl",               1, },   /* 0x14 */
189
          { "bne",              1, },   /* 0x15 */
190
          { "ble",              1, },   /* 0x16 */
191
          { "bo",               1, },   /* 0x17 */
192
          { "faultno",          0, },    /* 0x18 */
193
          { "faultg",           0, },    /* 0x19 */
194
          { "faulte",           0, },    /* 0x1a */
195
          { "faultge",          0, },    /* 0x1b */
196
          { "faultl",           0, },    /* 0x1c */
197
          { "faultne",          0, },    /* 0x1d */
198
          { "faultle",          0, },    /* 0x1e */
199
          { "faulto",           0, },    /* 0x1f */
200
        };
201
 
202
        i = (word1 >> 24) & 0xff;
203
        if ( (ctrl_tab[i].name == NULL) || ((word1 & 1) != 0) ){
204
                invalid( word1 );
205
                return;
206
        }
207
 
208
        (*info->fprintf_func) ( stream, ctrl_tab[i].name );
209
        if ( word1 & 2 ){               /* Predicts branch not taken */
210
                (*info->fprintf_func) ( stream, ".f" );
211
        }
212
 
213
        if ( ctrl_tab[i].numops == 1 ){
214
                /* EXTRACT DISPLACEMENT AND CONVERT TO ADDRESS */
215
                word1 &= 0x00ffffff;
216
                if ( word1 & 0x00800000 ){              /* Sign bit is set */
217
                        word1 |= (-1 & ~0xffffff);      /* Sign extend */
218
                }
219
                (*info->fprintf_func)( stream, "\t" );
220
                print_addr( word1 + memaddr );
221
        }
222
}
223
 
224
/****************************************/
225
/* COBR format                          */
226
/****************************************/
227
static void
228
cobr( memaddr, word1, word2 )
229
    bfd_vma memaddr;
230
    unsigned long word1, word2;
231
{
232
        int src1;
233
        int src2;
234
        int i;
235
 
236
        static const struct tabent cobr_tab[] = {
237
          { "testno",   1, },   /* 0x20 */
238
          { "testg",    1, },   /* 0x21 */
239
          { "teste",    1, },   /* 0x22 */
240
          { "testge",   1, },   /* 0x23 */
241
          { "testl",    1, },   /* 0x24 */
242
          { "testne",   1, },   /* 0x25 */
243
          { "testle",   1, },   /* 0x26 */
244
          { "testo",    1, },   /* 0x27 */
245
          { NULL,       0, },    /* 0x28 */
246
          { NULL,       0, },    /* 0x29 */
247
          { NULL,       0, },    /* 0x2a */
248
          { NULL,       0, },    /* 0x2b */
249
          { NULL,       0, },    /* 0x2c */
250
          { NULL,       0, },    /* 0x2d */
251
          { NULL,       0, },    /* 0x2e */
252
          { NULL,       0, },    /* 0x2f */
253
          { "bbc",      3, },   /* 0x30 */
254
          { "cmpobg",   3, },   /* 0x31 */
255
          { "cmpobe",   3, },   /* 0x32 */
256
          { "cmpobge",  3, },   /* 0x33 */
257
          { "cmpobl",   3, },   /* 0x34 */
258
          { "cmpobne",  3, },   /* 0x35 */
259
          { "cmpoble",  3, },   /* 0x36 */
260
          { "bbs",      3, },   /* 0x37 */
261
          { "cmpibno",  3, },   /* 0x38 */
262
          { "cmpibg",   3, },   /* 0x39 */
263
          { "cmpibe",   3, },   /* 0x3a */
264
          { "cmpibge",  3, },   /* 0x3b */
265
          { "cmpibl",   3, },   /* 0x3c */
266
          { "cmpibne",  3, },   /* 0x3d */
267
          { "cmpible",  3, },   /* 0x3e */
268
          { "cmpibo",   3, },   /* 0x3f */
269
        };
270
 
271
        i = ((word1 >> 24) & 0xff) - 0x20;
272
        if ( cobr_tab[i].name == NULL ){
273
                invalid( word1 );
274
                return;
275
        }
276
 
277
        (*info->fprintf_func) ( stream, cobr_tab[i].name );
278
        if ( word1 & 2 ){               /* Predicts branch not taken */
279
                (*info->fprintf_func) ( stream, ".f" );
280
        }
281
        (*info->fprintf_func)( stream, "\t" );
282
 
283
        src1 = (word1 >> 19) & 0x1f;
284
        src2 = (word1 >> 14) & 0x1f;
285
 
286
        if ( word1 & 0x02000 ){         /* M1 is 1 */
287
                (*info->fprintf_func)( stream, "%d", src1 );
288
        } else {                        /* M1 is 0 */
289
                (*info->fprintf_func)( stream, reg_names[src1] );
290
        }
291
 
292
        if ( cobr_tab[i].numops > 1 ){
293
                if ( word1 & 1 ){               /* S2 is 1 */
294
                        (*info->fprintf_func)( stream, ",sf%d,", src2 );
295
                } else {                        /* S1 is 0 */
296
                        (*info->fprintf_func)( stream, ",%s,", reg_names[src2] );
297
                }
298
 
299
                /* Extract displacement and convert to address
300
                 */
301
                word1 &= 0x00001ffc;
302
                if ( word1 & 0x00001000 ){      /* Negative displacement */
303
                        word1 |= (-1 & ~0x1fff);        /* Sign extend */
304
                }
305
                print_addr( memaddr + word1 );
306
        }
307
}
308
 
309
/****************************************/
310
/* MEM format                           */
311
/****************************************/
312
static int                              /* returns instruction length: 4 or 8 */
313
mem( memaddr, word1, word2, noprint )
314
    bfd_vma memaddr;
315
    unsigned long word1, word2;
316
    int noprint;                /* If TRUE, return instruction length, but
317
                                 * don't output any text.
318
                                 */
319
{
320
        int i, j;
321
        int len;
322
        int mode;
323
        int offset;
324
        const char *reg1, *reg2, *reg3;
325
 
326
        /* This lookup table is too sparse to make it worth typing in, but not
327
           so large as to make a sparse array necessary.  We create the table
328
           at runtime.  */
329
 
330
        /*
331
         * NOTE: In this table, the meaning of 'numops' is:
332
         *       1: single operand
333
         *       2: 2 operands, load instruction
334
         *      -2: 2 operands, store instruction
335
         */
336
        static struct tabent *mem_tab;
337
/* Opcodes of 0x8X, 9X, aX, bX, and cX must be in the table.  */
338
#define MEM_MIN 0x80
339
#define MEM_MAX 0xcf
340
#define MEM_SIZ ( * sizeof(struct tabent))
341
 
342
        static const struct sparse_tabent mem_init[] = {
343
          { 0x80,       "ldob",  2 },
344
          { 0x82,       "stob", -2 },
345
          { 0x84,       "bx",    1 },
346
          { 0x85,       "balx",  2 },
347
          { 0x86,       "callx", 1 },
348
          { 0x88,       "ldos",  2 },
349
          { 0x8a,       "stos", -2 },
350
          { 0x8c,       "lda",   2 },
351
          { 0x90,       "ld",    2 },
352
          { 0x92,       "st",   -2 },
353
          { 0x98,       "ldl",   2 },
354
          { 0x9a,       "stl",  -2 },
355
          { 0xa0,       "ldt",   2 },
356
          { 0xa2,       "stt",  -2 },
357
          { 0xac,       "dcinva", 1 },
358
          { 0xb0,       "ldq",   2 },
359
          { 0xb2,       "stq",  -2 },
360
          { 0xc0,       "ldib",  2 },
361
          { 0xc2,       "stib", -2 },
362
          { 0xc8,       "ldis",  2 },
363
          { 0xca,       "stis", -2 },
364
          { 0,           NULL,   0 }
365
        };
366
        static struct tabent mem_tab_buf[MEM_MAX - MEM_MIN + 1];
367
 
368
        if ( mem_tab == NULL ){
369
                mem_tab = mem_tab_buf;
370
                for ( i = 0; mem_init[i].opcode != 0; i++ ){
371
                        j = mem_init[i].opcode - MEM_MIN;
372
                        mem_tab[j].name = mem_init[i].name;
373
                        mem_tab[j].numops = mem_init[i].numops;
374
                }
375
        }
376
 
377
        i = ((word1 >> 24) & 0xff) - MEM_MIN;
378
        mode = (word1 >> 10) & 0xf;
379
 
380
        if ( (mem_tab[i].name != NULL)          /* Valid instruction */
381
        &&   ((mode == 5) || (mode >=12)) ){    /* With 32-bit displacement */
382
                len = 8;
383
        } else {
384
                len = 4;
385
        }
386
 
387
        if ( noprint ){
388
                return len;
389
        }
390
 
391
        if ( (mem_tab[i].name == NULL) || (mode == 6) ){
392
                invalid( word1 );
393
                return len;
394
        }
395
 
396
        (*info->fprintf_func)( stream, "%s\t", mem_tab[i].name );
397
 
398
        reg1 = reg_names[ (word1 >> 19) & 0x1f ];       /* MEMB only */
399
        reg2 = reg_names[ (word1 >> 14) & 0x1f ];
400
        reg3 = reg_names[ word1 & 0x1f ];               /* MEMB only */
401
        offset = word1 & 0xfff;                         /* MEMA only  */
402
 
403
        switch ( mem_tab[i].numops ){
404
 
405
        case 2: /* LOAD INSTRUCTION */
406
                if ( mode & 4 ){                        /* MEMB FORMAT */
407
                        ea( memaddr, mode, reg2, reg3, word1, word2 );
408
                        (*info->fprintf_func)( stream, ",%s", reg1 );
409
                } else {                                /* MEMA FORMAT */
410
                        (*info->fprintf_func)( stream, "0x%x", (unsigned) offset );
411
                        if (mode & 8) {
412
                                (*info->fprintf_func)( stream, "(%s)", reg2 );
413
                        }
414
                        (*info->fprintf_func)( stream, ",%s", reg1 );
415
                }
416
                break;
417
 
418
        case -2: /* STORE INSTRUCTION */
419
                if ( mode & 4 ){                        /* MEMB FORMAT */
420
                        (*info->fprintf_func)( stream, "%s,", reg1 );
421
                        ea( memaddr, mode, reg2, reg3, word1, word2 );
422
                } else {                                /* MEMA FORMAT */
423
                        (*info->fprintf_func)( stream, "%s,0x%x", reg1, (unsigned) offset );
424
                        if (mode & 8) {
425
                                (*info->fprintf_func)( stream, "(%s)", reg2 );
426
                        }
427
                }
428
                break;
429
 
430
        case 1: /* BX/CALLX INSTRUCTION */
431
                if ( mode & 4 ){                        /* MEMB FORMAT */
432
                        ea( memaddr, mode, reg2, reg3, word1, word2 );
433
                } else {                                /* MEMA FORMAT */
434
                        (*info->fprintf_func)( stream, "0x%x", (unsigned) offset );
435
                        if (mode & 8) {
436
                                (*info->fprintf_func)( stream, "(%s)", reg2 );
437
                        }
438
                }
439
                break;
440
        }
441
 
442
        return len;
443
}
444
 
445
/****************************************/
446
/* REG format                           */
447
/****************************************/
448
static void
449
reg( word1 )
450
    unsigned long word1;
451
{
452
        int i, j;
453
        int opcode;
454
        int fp;
455
        int m1, m2, m3;
456
        int s1, s2;
457
        int src, src2, dst;
458
        char *mnemp;
459
 
460
        /* This lookup table is too sparse to make it worth typing in, but not
461
           so large as to make a sparse array necessary.  We create the table
462
           at runtime.  */
463
 
464
        /*
465
         * NOTE: In this table, the meaning of 'numops' is:
466
         *       1: single operand, which is NOT a destination.
467
         *      -1: single operand, which IS a destination.
468
         *       2: 2 operands, the 2nd of which is NOT a destination.
469
         *      -2: 2 operands, the 2nd of which IS a destination.
470
         *       3: 3 operands
471
         *
472
         *      If an opcode mnemonic begins with "F", it is a floating-point
473
         *      opcode (the "F" is not printed).
474
         */
475
 
476
        static struct tabent *reg_tab;
477
        static const struct sparse_tabent reg_init[] = {
478
#define REG_MIN 0x580
479
          { 0x580,      "notbit",       3 },
480
          { 0x581,      "and",          3 },
481
          { 0x582,      "andnot",       3 },
482
          { 0x583,      "setbit",       3 },
483
          { 0x584,      "notand",       3 },
484
          { 0x586,      "xor",          3 },
485
          { 0x587,      "or",           3 },
486
          { 0x588,      "nor",          3 },
487
          { 0x589,      "xnor",         3 },
488
          { 0x58a,      "not",          -2 },
489
          { 0x58b,      "ornot",        3 },
490
          { 0x58c,      "clrbit",       3 },
491
          { 0x58d,      "notor",        3 },
492
          { 0x58e,      "nand",         3 },
493
          { 0x58f,      "alterbit",     3 },
494
          { 0x590,      "addo",         3 },
495
          { 0x591,      "addi",         3 },
496
          { 0x592,      "subo",         3 },
497
          { 0x593,      "subi",         3 },
498
          { 0x594,      "cmpob",        2 },
499
          { 0x595,      "cmpib",        2 },
500
          { 0x596,      "cmpos",        2 },
501
          { 0x597,      "cmpis",        2 },
502
          { 0x598,      "shro",         3 },
503
          { 0x59a,      "shrdi",        3 },
504
          { 0x59b,      "shri",         3 },
505
          { 0x59c,      "shlo",         3 },
506
          { 0x59d,      "rotate",       3 },
507
          { 0x59e,      "shli",         3 },
508
          { 0x5a0,      "cmpo",         2 },
509
          { 0x5a1,      "cmpi",         2 },
510
          { 0x5a2,      "concmpo",      2 },
511
          { 0x5a3,      "concmpi",      2 },
512
          { 0x5a4,      "cmpinco",      3 },
513
          { 0x5a5,      "cmpinci",      3 },
514
          { 0x5a6,      "cmpdeco",      3 },
515
          { 0x5a7,      "cmpdeci",      3 },
516
          { 0x5ac,      "scanbyte",     2 },
517
          { 0x5ad,      "bswap",        -2 },
518
          { 0x5ae,      "chkbit",       2 },
519
          { 0x5b0,      "addc",         3 },
520
          { 0x5b2,      "subc",         3 },
521
          { 0x5b4,      "intdis",       0 },
522
          { 0x5b5,      "inten",        0 },
523
          { 0x5cc,      "mov",          -2 },
524
          { 0x5d8,      "eshro",        3 },
525
          { 0x5dc,      "movl",         -2 },
526
          { 0x5ec,      "movt",         -2 },
527
          { 0x5fc,      "movq",         -2 },
528
          { 0x600,      "synmov",       2 },
529
          { 0x601,      "synmovl",      2 },
530
          { 0x602,      "synmovq",      2 },
531
          { 0x603,      "cmpstr",       3 },
532
          { 0x604,      "movqstr",      3 },
533
          { 0x605,      "movstr",       3 },
534
          { 0x610,      "atmod",        3 },
535
          { 0x612,      "atadd",        3 },
536
          { 0x613,      "inspacc",      -2 },
537
          { 0x614,      "ldphy",        -2 },
538
          { 0x615,      "synld",        -2 },
539
          { 0x617,      "fill",         3 },
540
          { 0x630,      "sdma",         3 },
541
          { 0x631,      "udma",         0 },
542
          { 0x640,      "spanbit",      -2 },
543
          { 0x641,      "scanbit",      -2 },
544
          { 0x642,      "daddc",        3 },
545
          { 0x643,      "dsubc",        3 },
546
          { 0x644,      "dmovt",        -2 },
547
          { 0x645,      "modac",        3 },
548
          { 0x646,      "condrec",      -2 },
549
          { 0x650,      "modify",       3 },
550
          { 0x651,      "extract",      3 },
551
          { 0x654,      "modtc",        3 },
552
          { 0x655,      "modpc",        3 },
553
          { 0x656,      "receive",      -2 },
554
          { 0x658,      "intctl",       -2 },
555
          { 0x659,      "sysctl",       3 },
556
          { 0x65b,      "icctl",        3 },
557
          { 0x65c,      "dcctl",        3 },
558
          { 0x65d,      "halt",         0 },
559
          { 0x660,      "calls",        1 },
560
          { 0x662,      "send",         3 },
561
          { 0x663,      "sendserv",     1 },
562
          { 0x664,      "resumprcs",    1 },
563
          { 0x665,      "schedprcs",    1 },
564
          { 0x666,      "saveprcs",     0 },
565
          { 0x668,      "condwait",     1 },
566
          { 0x669,      "wait",         1 },
567
          { 0x66a,      "signal",       1 },
568
          { 0x66b,      "mark",         0 },
569
          { 0x66c,      "fmark",        0 },
570
          { 0x66d,      "flushreg",     0 },
571
          { 0x66f,      "syncf",        0 },
572
          { 0x670,      "emul",         3 },
573
          { 0x671,      "ediv",         3 },
574
          { 0x673,      "ldtime",       -1 },
575
          { 0x674,      "Fcvtir",       -2 },
576
          { 0x675,      "Fcvtilr",      -2 },
577
          { 0x676,      "Fscalerl",     3 },
578
          { 0x677,      "Fscaler",      3 },
579
          { 0x680,      "Fatanr",       3 },
580
          { 0x681,      "Flogepr",      3 },
581
          { 0x682,      "Flogr",        3 },
582
          { 0x683,      "Fremr",        3 },
583
          { 0x684,      "Fcmpor",       2 },
584
          { 0x685,      "Fcmpr",        2 },
585
          { 0x688,      "Fsqrtr",       -2 },
586
          { 0x689,      "Fexpr",        -2 },
587
          { 0x68a,      "Flogbnr",      -2 },
588
          { 0x68b,      "Froundr",      -2 },
589
          { 0x68c,      "Fsinr",        -2 },
590
          { 0x68d,      "Fcosr",        -2 },
591
          { 0x68e,      "Ftanr",        -2 },
592
          { 0x68f,      "Fclassr",      1 },
593
          { 0x690,      "Fatanrl",      3 },
594
          { 0x691,      "Flogeprl",     3 },
595
          { 0x692,      "Flogrl",       3 },
596
          { 0x693,      "Fremrl",       3 },
597
          { 0x694,      "Fcmporl",      2 },
598
          { 0x695,      "Fcmprl",       2 },
599
          { 0x698,      "Fsqrtrl",      -2 },
600
          { 0x699,      "Fexprl",       -2 },
601
          { 0x69a,      "Flogbnrl",     -2 },
602
          { 0x69b,      "Froundrl",     -2 },
603
          { 0x69c,      "Fsinrl",       -2 },
604
          { 0x69d,      "Fcosrl",       -2 },
605
          { 0x69e,      "Ftanrl",       -2 },
606
          { 0x69f,      "Fclassrl",     1 },
607
          { 0x6c0,      "Fcvtri",       -2 },
608
          { 0x6c1,      "Fcvtril",      -2 },
609
          { 0x6c2,      "Fcvtzri",      -2 },
610
          { 0x6c3,      "Fcvtzril",     -2 },
611
          { 0x6c9,      "Fmovr",        -2 },
612
          { 0x6d9,      "Fmovrl",       -2 },
613
          { 0x6e1,      "Fmovre",       -2 },
614
          { 0x6e2,      "Fcpysre",      3 },
615
          { 0x6e3,      "Fcpyrsre",     3 },
616
          { 0x701,      "mulo",         3 },
617
          { 0x708,      "remo",         3 },
618
          { 0x70b,      "divo",         3 },
619
          { 0x741,      "muli",         3 },
620
          { 0x748,      "remi",         3 },
621
          { 0x749,      "modi",         3 },
622
          { 0x74b,      "divi",         3 },
623
          { 0x780,      "addono",       3 },
624
          { 0x781,      "addino",       3 },
625
          { 0x782,      "subono",       3 },
626
          { 0x783,      "subino",       3 },
627
          { 0x784,      "selno",        3 },
628
          { 0x78b,      "Fdivr",        3 },
629
          { 0x78c,      "Fmulr",        3 },
630
          { 0x78d,      "Fsubr",        3 },
631
          { 0x78f,      "Faddr",        3 },
632
          { 0x790,      "addog",        3 },
633
          { 0x791,      "addig",        3 },
634
          { 0x792,      "subog",        3 },
635
          { 0x793,      "subig",        3 },
636
          { 0x794,      "selg",         3 },
637
          { 0x79b,      "Fdivrl",       3 },
638
          { 0x79c,      "Fmulrl",       3 },
639
          { 0x79d,      "Fsubrl",       3 },
640
          { 0x79f,      "Faddrl",       3 },
641
          { 0x7a0,      "addoe",        3 },
642
          { 0x7a1,      "addie",        3 },
643
          { 0x7a2,      "suboe",        3 },
644
          { 0x7a3,      "subie",        3 },
645
          { 0x7a4,      "sele",         3 },
646
          { 0x7b0,      "addoge",       3 },
647
          { 0x7b1,      "addige",       3 },
648
          { 0x7b2,      "suboge",       3 },
649
          { 0x7b3,      "subige",       3 },
650
          { 0x7b4,      "selge",        3 },
651
          { 0x7c0,      "addol",        3 },
652
          { 0x7c1,      "addil",        3 },
653
          { 0x7c2,      "subol",        3 },
654
          { 0x7c3,      "subil",        3 },
655
          { 0x7c4,      "sell",         3 },
656
          { 0x7d0,      "addone",       3 },
657
          { 0x7d1,      "addine",       3 },
658
          { 0x7d2,      "subone",       3 },
659
          { 0x7d3,      "subine",       3 },
660
          { 0x7d4,      "selne",        3 },
661
          { 0x7e0,      "addole",       3 },
662
          { 0x7e1,      "addile",       3 },
663
          { 0x7e2,      "subole",       3 },
664
          { 0x7e3,      "subile",       3 },
665
          { 0x7e4,      "selle",        3 },
666
          { 0x7f0,      "addoo",        3 },
667
          { 0x7f1,      "addio",        3 },
668
          { 0x7f2,      "suboo",        3 },
669
          { 0x7f3,      "subio",        3 },
670
          { 0x7f4,      "selo",         3 },
671
#define REG_MAX 0x7f4
672
          { 0,           NULL,           0 }
673
        };
674
        static struct tabent reg_tab_buf[REG_MAX - REG_MIN + 1];
675
 
676
        if ( reg_tab == NULL ){
677
                reg_tab = reg_tab_buf;
678
                for ( i = 0; reg_init[i].opcode != 0; i++ ){
679
                        j = reg_init[i].opcode - REG_MIN;
680
                        reg_tab[j].name = reg_init[i].name;
681
                        reg_tab[j].numops = reg_init[i].numops;
682
                }
683
        }
684
 
685
        opcode = ((word1 >> 20) & 0xff0) | ((word1 >> 7) & 0xf);
686
        i = opcode - REG_MIN;
687
 
688
        if ( (opcode<REG_MIN) || (opcode>REG_MAX) || (reg_tab[i].name==NULL) ){
689
                invalid( word1 );
690
                return;
691
        }
692
 
693
        mnemp = reg_tab[i].name;
694
        if ( *mnemp == 'F' ){
695
                fp = 1;
696
                mnemp++;
697
        } else {
698
                fp = 0;
699
        }
700
 
701
        (*info->fprintf_func)( stream, mnemp );
702
 
703
        s1   = (word1 >> 5)  & 1;
704
        s2   = (word1 >> 6)  & 1;
705
        m1   = (word1 >> 11) & 1;
706
        m2   = (word1 >> 12) & 1;
707
        m3   = (word1 >> 13) & 1;
708
        src  =  word1        & 0x1f;
709
        src2 = (word1 >> 14) & 0x1f;
710
        dst  = (word1 >> 19) & 0x1f;
711
 
712
        if  ( reg_tab[i].numops != 0 ){
713
                (*info->fprintf_func)( stream, "\t" );
714
 
715
                switch ( reg_tab[i].numops ){
716
                case 1:
717
                        regop( m1, s1, src, fp );
718
                        break;
719
                case -1:
720
                        dstop( m3, dst, fp );
721
                        break;
722
                case 2:
723
                        regop( m1, s1, src, fp );
724
                        (*info->fprintf_func)( stream, "," );
725
                        regop( m2, s2, src2, fp );
726
                        break;
727
                case -2:
728
                        regop( m1, s1, src, fp );
729
                        (*info->fprintf_func)( stream, "," );
730
                        dstop( m3, dst, fp );
731
                        break;
732
                case 3:
733
                        regop( m1, s1, src, fp );
734
                        (*info->fprintf_func)( stream, "," );
735
                        regop( m2, s2, src2, fp );
736
                        (*info->fprintf_func)( stream, "," );
737
                        dstop( m3, dst, fp );
738
                        break;
739
                }
740
        }
741
}
742
 
743
 
744
/*
745
 * Print out effective address for memb instructions.
746
 */
747
static void
748
ea( memaddr, mode, reg2, reg3, word1, word2 )
749
     bfd_vma memaddr;
750
     int mode;
751
     char *reg2, *reg3;
752
     int word1;
753
     unsigned int word2;
754
{
755
        int scale;
756
        static const int scale_tab[] = { 1, 2, 4, 8, 16 };
757
 
758
        scale = (word1 >> 7) & 0x07;
759
        if ( (scale > 4) || (((word1 >> 5) & 0x03) != 0) ){
760
                invalid( word1 );
761
                return;
762
        }
763
        scale = scale_tab[scale];
764
 
765
        switch (mode) {
766
        case 4:                                         /* (reg) */
767
                (*info->fprintf_func)( stream, "(%s)", reg2 );
768
                break;
769
        case 5:                                         /* displ+8(ip) */
770
                print_addr( word2+8+memaddr );
771
                break;
772
        case 7:                                         /* (reg)[index*scale] */
773
                if (scale == 1) {
774
                        (*info->fprintf_func)( stream, "(%s)[%s]", reg2, reg3 );
775
                } else {
776
                        (*info->fprintf_func)( stream, "(%s)[%s*%d]",reg2,reg3,scale);
777
                }
778
                break;
779
        case 12:                                        /* displacement */
780
                print_addr( (bfd_vma)word2 );
781
                break;
782
        case 13:                                        /* displ(reg) */
783
                print_addr( (bfd_vma)word2 );
784
                (*info->fprintf_func)( stream, "(%s)", reg2 );
785
                break;
786
        case 14:                                        /* displ[index*scale] */
787
                print_addr( (bfd_vma)word2 );
788
                if (scale == 1) {
789
                        (*info->fprintf_func)( stream, "[%s]", reg3 );
790
                } else {
791
                        (*info->fprintf_func)( stream, "[%s*%d]", reg3, scale );
792
                }
793
                break;
794
        case 15:                                /* displ(reg)[index*scale] */
795
                print_addr( (bfd_vma)word2 );
796
                if (scale == 1) {
797
                        (*info->fprintf_func)( stream, "(%s)[%s]", reg2, reg3 );
798
                } else {
799
                        (*info->fprintf_func)( stream, "(%s)[%s*%d]",reg2,reg3,scale );
800
                }
801
                break;
802
        default:
803
                invalid( word1 );
804
                return;
805
        }
806
}
807
 
808
 
809
/************************************************/
810
/* Register Instruction Operand                 */
811
/************************************************/
812
static void
813
regop( mode, spec, reg, fp )
814
    int mode, spec, reg, fp;
815
{
816
        if ( fp ){                              /* FLOATING POINT INSTRUCTION */
817
                if ( mode == 1 ){                       /* FP operand */
818
                        switch ( reg ){
819
                        case 0:  (*info->fprintf_func)( stream, "fp0" );
820
                          break;
821
                        case 1:  (*info->fprintf_func)( stream, "fp1" );
822
                          break;
823
                        case 2:  (*info->fprintf_func)( stream, "fp2" );
824
                          break;
825
                        case 3:  (*info->fprintf_func)( stream, "fp3" );
826
                          break;
827
                        case 16: (*info->fprintf_func)( stream, "0f0.0" );
828
                          break;
829
                        case 22: (*info->fprintf_func)( stream, "0f1.0" );
830
                          break;
831
                        default: (*info->fprintf_func)( stream, "?" );
832
                          break;
833
                        }
834
                } else {                                /* Non-FP register */
835
                        (*info->fprintf_func)( stream, reg_names[reg] );
836
                }
837
        } else {                                /* NOT FLOATING POINT */
838
                if ( mode == 1 ){                       /* Literal */
839
                        (*info->fprintf_func)( stream, "%d", reg );
840
                } else {                                /* Register */
841
                        if ( spec == 0 ){
842
                                (*info->fprintf_func)( stream, reg_names[reg] );
843
                        } else {
844
                                (*info->fprintf_func)( stream, "sf%d", reg );
845
                        }
846
                }
847
        }
848
}
849
 
850
/************************************************/
851
/* Register Instruction Destination Operand     */
852
/************************************************/
853
static void
854
dstop( mode, reg, fp )
855
    int mode, reg, fp;
856
{
857
        /* 'dst' operand can't be a literal. On non-FP instructions,  register
858
         * mode is assumed and "m3" acts as if were "s3";  on FP-instructions,
859
         * sf registers are not allowed so m3 acts normally.
860
         */
861
         if ( fp ){
862
                regop( mode, 0, reg, fp );
863
         } else {
864
                regop( 0, mode, reg, fp );
865
         }
866
}
867
 
868
 
869
static void
870
invalid( word1 )
871
    int word1;
872
{
873
        (*info->fprintf_func)( stream, ".word\t0x%08x", (unsigned) word1 );
874
}
875
 
876
static void
877
print_addr(a)
878
bfd_vma a;
879
{
880
  (*info->print_address_func) (a, info);
881
}
882
 
883
static void
884
put_abs( word1, word2 )
885
    unsigned long word1, word2;
886
{
887
#ifdef IN_GDB
888
        return;
889
#else
890
        int len;
891
 
892
        switch ( (word1 >> 28) & 0xf ){
893
        case 0x8:
894
        case 0x9:
895
        case 0xa:
896
        case 0xb:
897
        case 0xc:
898
                /* MEM format instruction */
899
                len = mem( 0, word1, word2, 1 );
900
                break;
901
        default:
902
                len = 4;
903
                break;
904
        }
905
 
906
        if ( len == 8 ){
907
                (*info->fprintf_func)( stream, "%08x %08x\t", word1, word2 );
908
        } else {
909
                (*info->fprintf_func)( stream, "%08x         \t", word1 );
910
        }
911
;
912
 
913
#endif
914
}

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