1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
|
/* Mips opcde list for GDB, the GNU debugger.
Copyright (C) 1989 Free Software Foundation, Inc.
Contributed by Nobuyuki Hikichi(hikichi@sra.junet)
Made to work for little-endian machines, and debugged
by Per Bothner (bothner@cs.wisc.edu).
Many fixes contributed by Frank Yellin (fy@lucid.com).
This file is part of GDB.
GDB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
GDB is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GDB; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#if BITS_BIG_ENDIAN
#define BIT_FIELDS_2(a,b) a;b;
#define BIT_FIELDS_4(a,b,c,d) a;b;c;d;
#define BIT_FIELDS_6(a,b,c,d,e,f) a;b;c;d;e;f;
#else
#define BIT_FIELDS_2(a,b) b;a;
#define BIT_FIELDS_4(a,b,c,d) d;c;b;a;
#define BIT_FIELDS_6(a,b,c,d,e,f) f;e;d;c;b;a;
#endif
struct op_i_fmt
{
BIT_FIELDS_4(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
unsigned immediate : 16)
};
struct op_j_fmt
{
BIT_FIELDS_2(
unsigned op : 6,
unsigned target : 26)
};
struct op_r_fmt
{
BIT_FIELDS_6(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
unsigned rd : 5,
unsigned shamt : 5,
unsigned funct : 6)
};
struct fop_i_fmt
{
BIT_FIELDS_4(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
unsigned immediate : 16)
};
struct op_b_fmt
{
BIT_FIELDS_4(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
short delta : 16)
};
struct fop_r_fmt
{
BIT_FIELDS_6(
unsigned op : 6,
unsigned fmt : 5,
unsigned ft : 5,
unsigned fs : 5,
unsigned fd : 5,
unsigned funct : 6)
};
struct mips_opcode
{
char *name;
unsigned long opcode;
unsigned long match;
char *args;
int bdelay; /* Nonzero if delayed branch. */
};
/* args format;
"s" rs: source register specifier
"t" rt: target register
"i" immediate
"a" target address
"c" branch condition
"d" rd: destination register specifier
"h" shamt: shift amount
"f" funct: function field
for fpu
"S" fs source 1 register
"T" ft source 2 register
"D" distination register
*/
#define one(x) (x << 26)
#define op_func(x, y) ((x << 26) | y)
#define op_cond(x, y) ((x << 26) | (y << 16))
#define op_rs_func(x, y, z) ((x << 26) | (y << 21) | z)
#define op_rs_b11(x, y, z) ((x << 26) | (y << 21) | z)
#define op_o16(x, y) ((x << 26) | (y << 16))
#define op_bc(x, y, z) ((x << 26) | (y << 21) | (z << 16))
struct mips_opcode mips_opcodes[] =
{
/* These first opcodes are special cases of the ones in the comments */
{"nop", 0, 0xffffffff, /*li*/ "", 0},
{"li", op_bc(9,0,0), op_bc(0x3f,31,0), /*addiu*/ "t,j", 0},
{"b", one(4), 0xffff0000, /*beq*/ "b", 1},
{"move", op_func(0, 33), op_cond(0x3f,31)|0x7ff,/*addu*/ "d,s", 0},
{"sll", op_func(0, 0), op_func(0x3f, 0x3f), "d,t,h", 0},
{"srl", op_func(0, 2), op_func(0x3f, 0x3f), "d,t,h", 0},
{"sra", op_func(0, 3), op_func(0x3f, 0x3f), "d,t,h", 0},
{"sllv", op_func(0, 4), op_func(0x3f, 0x7ff), "d,t,s", 0},
{"srlv", op_func(0, 6), op_func(0x3f, 0x7ff), "d,t,s", 0},
{"srav", op_func(0, 7), op_func(0x3f, 0x7ff), "d,t,s", 0},
{"jr", op_func(0, 8), op_func(0x3f, 0x1fffff), "s", 1},
{"jalr", op_func(0, 9), op_func(0x3f, 0x1f07ff), "d,s", 1},
{"syscall", op_func(0, 12), op_func(0x3f, 0x3f), "", 0},
{"break", op_func(0, 13), op_func(0x3f, 0x3f), "", 0},
{"mfhi", op_func(0, 16), op_func(0x3f, 0x03ff07ff), "d", 0},
{"mthi", op_func(0, 17), op_func(0x3f, 0x1fffff), "s", 0},
{"mflo", op_func(0, 18), op_func(0x3f, 0x03ff07ff), "d", 0},
{"mtlo", op_func(0, 19), op_func(0x3f, 0x1fffff), "s", 0},
{"mult", op_func(0, 24), op_func(0x3f, 0xffff), "s,t", 0},
{"multu", op_func(0, 25), op_func(0x3f, 0xffff), "s,t", 0},
{"div", op_func(0, 26), op_func(0x3f, 0xffff), "s,t", 0},
{"divu", op_func(0, 27), op_func(0x3f, 0xffff), "s,t", 0},
{"add", op_func(0, 32), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"addu", op_func(0, 33), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"sub", op_func(0, 34), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"subu", op_func(0, 35), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"and", op_func(0, 36), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"or", op_func(0, 37), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"xor", op_func(0, 38), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"nor", op_func(0, 39), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"slt", op_func(0, 42), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"sltu", op_func(0, 43), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"bltz", op_cond (1, 0), op_cond(0x3f, 0x1f), "s,b", 1},
{"bgez", op_cond (1, 1), op_cond(0x3f, 0x1f), "s,b", 1},
{"bltzal", op_cond (1, 16),op_cond(0x3f, 0x1f), "s,b", 1},
{"bgezal", op_cond (1, 17),op_cond(0x3f, 0x1f), "s,b", 1},
{"j", one(2), one(0x3f), "a", 1},
{"jal", one(3), one(0x3f), "a", 1},
{"beq", one(4), one(0x3f), "s,t,b", 1},
{"bne", one(5), one(0x3f), "s,t,b", 1},
{"blez", one(6), one(0x3f) | 0x1f0000, "s,b", 1},
{"bgtz", one(7), one(0x3f) | 0x1f0000, "s,b", 1},
{"addi", one(8), one(0x3f), "t,s,j", 0},
{"addiu", one(9), one(0x3f), "t,s,j", 0},
{"slti", one(10), one(0x3f), "t,s,j", 0},
{"sltiu", one(11), one(0x3f), "t,s,j", 0},
{"andi", one(12), one(0x3f), "t,s,i", 0},
{"ori", one(13), one(0x3f), "t,s,i", 0},
{"xori", one(14), one(0x3f), "t,s,i", 0},
/* rs field is don't care field? */
{"lui", one(15), one(0x3f), "t,i", 0},
/* co processor 0 instruction */
{"mfc0", op_rs_b11 (16, 0, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"cfc0", op_rs_b11 (16, 2, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"mtc0", op_rs_b11 (16, 4, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"ctc0", op_rs_b11 (16, 6, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"bc0f", op_o16(16, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc0f", op_o16(16, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc0t", op_o16(16, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc0t", op_o16(16, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
{"tlbr", op_rs_func(16, 0x10, 1), ~0, "", 0},
{"tlbwi", op_rs_func(16, 0x10, 2), ~0, "", 0},
{"tlbwr", op_rs_func(16, 0x10, 6), ~0, "", 0},
{"tlbp", op_rs_func(16, 0x10, 8), ~0, "", 0},
{"rfe", op_rs_func(16, 0x10, 16), ~0, "", 0},
{"mfc1", op_rs_b11 (17, 0, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"cfc1", op_rs_b11 (17, 2, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"mtc1", op_rs_b11 (17, 4, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"ctc1", op_rs_b11 (17, 6, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"bc1f", op_o16(17, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc1f", op_o16(17, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc1t", op_o16(17, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc1t", op_o16(17, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
/* fpu instruction */
{"add.s", op_rs_func(17, 0x10, 0),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"add.d", op_rs_func(17, 0x11, 0),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"sub.s", op_rs_func(17, 0x10, 1),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"sub.d", op_rs_func(17, 0x11, 1),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"mul.s", op_rs_func(17, 0x10, 2),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"mul.d", op_rs_func(17, 0x11, 2),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"div.s", op_rs_func(17, 0x10, 3),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"div.d", op_rs_func(17, 0x11, 3),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"abs.s", op_rs_func(17, 0x10, 5),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"abs.d", op_rs_func(17, 0x11, 5),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"mov.s", op_rs_func(17, 0x10, 6),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"mov.d", op_rs_func(17, 0x11, 6),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"neg.s", op_rs_func(17, 0x10, 7),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"neg.d", op_rs_func(17, 0x11, 7),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.s.s", op_rs_func(17, 0x10, 32),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.s.d", op_rs_func(17, 0x11, 32),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.s.w", op_rs_func(17, 0x14, 32),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.d.s", op_rs_func(17, 0x10, 33),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.d.d", op_rs_func(17, 0x11, 33),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.d.w", op_rs_func(17, 0x14, 33),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.w.s", op_rs_func(17, 0x10, 36),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.w.d", op_rs_func(17, 0x11, 36),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"c.f.s", op_rs_func(17, 0x10, 48),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.f.d", op_rs_func(17, 0x11, 48),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.un.s", op_rs_func(17, 0x10, 49),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.un.d", op_rs_func(17, 0x11, 49),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.eq.s", op_rs_func(17, 0x10, 50),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.eq.d", op_rs_func(17, 0x11, 50),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ueq.s", op_rs_func(17, 0x10, 51),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ueq.d", op_rs_func(17, 0x11, 51),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.olt.s", op_rs_func(17, 0x10, 52),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.olt.d", op_rs_func(17, 0x11, 52),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ult.s", op_rs_func(17, 0x10, 53),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ult.d", op_rs_func(17, 0x11, 53),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ole.s", op_rs_func(17, 0x10, 54),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ole.d", op_rs_func(17, 0x11, 54),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ule.s", op_rs_func(17, 0x10, 55),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ule.d", op_rs_func(17, 0x11, 55),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.sf.s", op_rs_func(17, 0x10, 56),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.sf.d", op_rs_func(17, 0x11, 56),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngle.s", op_rs_func(17, 0x10, 57),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngle.d", op_rs_func(17, 0x11, 57),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.seq.s", op_rs_func(17, 0x10, 58),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.seq.d", op_rs_func(17, 0x11, 58),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngl.s", op_rs_func(17, 0x10, 59),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngl.d", op_rs_func(17, 0x11, 59),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.lt.s", op_rs_func(17, 0x10, 60),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.lt.d", op_rs_func(17, 0x11, 60),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.nge.s", op_rs_func(17, 0x10, 61),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.nge.d", op_rs_func(17, 0x11, 61),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.le.s", op_rs_func(17, 0x10, 62),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.le.d", op_rs_func(17, 0x11, 62),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngt.s", op_rs_func(17, 0x10, 63),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngt.d", op_rs_func(17, 0x11, 63),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
/* co processor 2 instruction */
{"mfc2", op_rs_b11 (18, 0, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"cfc2", op_rs_b11 (18, 2, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"mtc2", op_rs_b11 (18, 4, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"ctc2", op_rs_b11 (18, 6, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"bc2f", op_o16(18, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc2f", op_o16(18, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc2f", op_o16(18, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc2t", op_o16(18, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
/* co processor 3 instruction */
{"mtc3", op_rs_b11 (19, 0, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"cfc3", op_rs_b11 (19, 2, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"mtc3", op_rs_b11 (19, 4, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"ctc3", op_rs_b11 (19, 6, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0},
{"bc3f", op_o16(19, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc3f", op_o16(19, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc3t", op_o16(19, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc3t", op_o16(19, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
{"lb", one(32), one(0x3f), "t,j(s)", 0},
{"lh", one(33), one(0x3f), "t,j(s)", 0},
{"lwl", one(34), one(0x3f), "t,j(s)", 0},
{"lw", one(35), one(0x3f), "t,j(s)", 0},
{"lbu", one(36), one(0x3f), "t,j(s)", 0},
{"lhu", one(37), one(0x3f), "t,j(s)", 0},
{"lwr", one(38), one(0x3f), "t,j(s)", 0},
{"sb", one(40), one(0x3f), "t,j(s)", 0},
{"sh", one(41), one(0x3f), "t,j(s)", 0},
{"swl", one(42), one(0x3f), "t,j(s)", 0},
{"swr", one(46), one(0x3f), "t,j(s)", 0},
{"sw", one(43), one(0x3f), "t,j(s)", 0},
{"lwc0", one(48), one(0x3f), "t,j(s)", 0},
/* for fpu */
{"lwc1", one(49), one(0x3f), "T,j(s)", 0},
{"lwc2", one(50), one(0x3f), "t,j(s)", 0},
{"lwc3", one(51), one(0x3f), "t,j(s)", 0},
{"swc0", one(56), one(0x3f), "t,j(s)", 0},
/* for fpu */
{"swc1", one(57), one(0x3f), "T,j(s)", 0},
{"swc2", one(58), one(0x3f), "t,j(s)", 0},
{"swc3", one(59), one(0x3f), "t,j(s)", 0},
};
|
