OpenCores
URL https://opencores.org/ocsvn/scarts/scarts/trunk

Subversion Repositories scarts

[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [include/] [opcode/] [mips.h] - Blame information for rev 25

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 25 jlechner
/* mips.h.  Mips opcode list for GDB, the GNU debugger.
2
   Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3
   2003, 2004, 2005, 2008
4
   Free Software Foundation, Inc.
5
   Contributed by Ralph Campbell and OSF
6
   Commented and modified by Ian Lance Taylor, Cygnus Support
7
 
8
This file is part of GDB, GAS, and the GNU binutils.
9
 
10
GDB, GAS, and the GNU binutils are free software; you can redistribute
11
them and/or modify them under the terms of the GNU General Public
12
License as published by the Free Software Foundation; either version
13
1, or (at your option) any later version.
14
 
15
GDB, GAS, and the GNU binutils are distributed in the hope that they
16
will be useful, but WITHOUT ANY WARRANTY; without even the implied
17
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
18
the GNU General Public License for more details.
19
 
20
You should have received a copy of the GNU General Public License
21
along with this file; see the file COPYING.  If not, write to the Free
22
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
23
 
24
#ifndef _MIPS_H_
25
#define _MIPS_H_
26
 
27
/* These are bit masks and shift counts to use to access the various
28
   fields of an instruction.  To retrieve the X field of an
29
   instruction, use the expression
30
        (i >> OP_SH_X) & OP_MASK_X
31
   To set the same field (to j), use
32
        i = (i &~ (OP_MASK_X << OP_SH_X)) | (j << OP_SH_X)
33
 
34
   Make sure you use fields that are appropriate for the instruction,
35
   of course.
36
 
37
   The 'i' format uses OP, RS, RT and IMMEDIATE.
38
 
39
   The 'j' format uses OP and TARGET.
40
 
41
   The 'r' format uses OP, RS, RT, RD, SHAMT and FUNCT.
42
 
43
   The 'b' format uses OP, RS, RT and DELTA.
44
 
45
   The floating point 'i' format uses OP, RS, RT and IMMEDIATE.
46
 
47
   The floating point 'r' format uses OP, FMT, FT, FS, FD and FUNCT.
48
 
49
   A breakpoint instruction uses OP, CODE and SPEC (10 bits of the
50
   breakpoint instruction are not defined; Kane says the breakpoint
51
   code field in BREAK is 20 bits; yet MIPS assemblers and debuggers
52
   only use ten bits).  An optional two-operand form of break/sdbbp
53
   allows the lower ten bits to be set too, and MIPS32 and later
54
   architectures allow 20 bits to be set with a signal operand
55
   (using CODE20).
56
 
57
   The syscall instruction uses CODE20.
58
 
59
   The general coprocessor instructions use COPZ.  */
60
 
61
#define OP_MASK_OP              0x3f
62
#define OP_SH_OP                26
63
#define OP_MASK_RS              0x1f
64
#define OP_SH_RS                21
65
#define OP_MASK_FR              0x1f
66
#define OP_SH_FR                21
67
#define OP_MASK_FMT             0x1f
68
#define OP_SH_FMT               21
69
#define OP_MASK_BCC             0x7
70
#define OP_SH_BCC               18
71
#define OP_MASK_CODE            0x3ff
72
#define OP_SH_CODE              16
73
#define OP_MASK_CODE2           0x3ff
74
#define OP_SH_CODE2             6
75
#define OP_MASK_RT              0x1f
76
#define OP_SH_RT                16
77
#define OP_MASK_FT              0x1f
78
#define OP_SH_FT                16
79
#define OP_MASK_CACHE           0x1f
80
#define OP_SH_CACHE             16
81
#define OP_MASK_RD              0x1f
82
#define OP_SH_RD                11
83
#define OP_MASK_FS              0x1f
84
#define OP_SH_FS                11
85
#define OP_MASK_PREFX           0x1f
86
#define OP_SH_PREFX             11
87
#define OP_MASK_CCC             0x7
88
#define OP_SH_CCC               8
89
#define OP_MASK_CODE20          0xfffff /* 20 bit syscall/breakpoint code.  */
90
#define OP_SH_CODE20            6
91
#define OP_MASK_SHAMT           0x1f
92
#define OP_SH_SHAMT             6
93
#define OP_MASK_FD              0x1f
94
#define OP_SH_FD                6
95
#define OP_MASK_TARGET          0x3ffffff
96
#define OP_SH_TARGET            0
97
#define OP_MASK_COPZ            0x1ffffff
98
#define OP_SH_COPZ              0
99
#define OP_MASK_IMMEDIATE       0xffff
100
#define OP_SH_IMMEDIATE         0
101
#define OP_MASK_DELTA           0xffff
102
#define OP_SH_DELTA             0
103
#define OP_MASK_FUNCT           0x3f
104
#define OP_SH_FUNCT             0
105
#define OP_MASK_SPEC            0x3f
106
#define OP_SH_SPEC              0
107
#define OP_SH_LOCC              8       /* FP condition code.  */
108
#define OP_SH_HICC              18      /* FP condition code.  */
109
#define OP_MASK_CC              0x7
110
#define OP_SH_COP1NORM          25      /* Normal COP1 encoding.  */
111
#define OP_MASK_COP1NORM        0x1     /* a single bit.  */
112
#define OP_SH_COP1SPEC          21      /* COP1 encodings.  */
113
#define OP_MASK_COP1SPEC        0xf
114
#define OP_MASK_COP1SCLR        0x4
115
#define OP_MASK_COP1CMP         0x3
116
#define OP_SH_COP1CMP           4
117
#define OP_SH_FORMAT            21      /* FP short format field.  */
118
#define OP_MASK_FORMAT          0x7
119
#define OP_SH_TRUE              16
120
#define OP_MASK_TRUE            0x1
121
#define OP_SH_GE                17
122
#define OP_MASK_GE              0x01
123
#define OP_SH_UNSIGNED          16
124
#define OP_MASK_UNSIGNED        0x1
125
#define OP_SH_HINT              16
126
#define OP_MASK_HINT            0x1f
127
#define OP_SH_MMI               0       /* Multimedia (parallel) op.  */
128
#define OP_MASK_MMI             0x3f
129
#define OP_SH_MMISUB            6
130
#define OP_MASK_MMISUB          0x1f
131
#define OP_MASK_PERFREG         0x1f    /* Performance monitoring.  */
132
#define OP_SH_PERFREG           1
133
#define OP_SH_SEL               0        /* Coprocessor select field.  */
134
#define OP_MASK_SEL             0x7     /* The sel field of mfcZ and mtcZ.  */
135
#define OP_SH_CODE19            6       /* 19 bit wait code.  */
136
#define OP_MASK_CODE19          0x7ffff
137
#define OP_SH_ALN               21
138
#define OP_MASK_ALN             0x7
139
#define OP_SH_VSEL              21
140
#define OP_MASK_VSEL            0x1f
141
#define OP_MASK_VECBYTE         0x7     /* Selector field is really 4 bits,
142
                                           but 0x8-0xf don't select bytes.  */
143
#define OP_SH_VECBYTE           22
144
#define OP_MASK_VECALIGN        0x7     /* Vector byte-align (alni.ob) op.  */
145
#define OP_SH_VECALIGN          21
146
#define OP_MASK_INSMSB          0x1f    /* "ins" MSB.  */
147
#define OP_SH_INSMSB            11
148
#define OP_MASK_EXTMSBD         0x1f    /* "ext" MSBD.  */
149
#define OP_SH_EXTMSBD           11
150
 
151
/* MIPS DSP ASE */
152
#define OP_SH_DSPACC            11
153
#define OP_MASK_DSPACC          0x3
154
#define OP_SH_DSPACC_S          21
155
#define OP_MASK_DSPACC_S        0x3
156
#define OP_SH_DSPSFT            20
157
#define OP_MASK_DSPSFT          0x3f
158
#define OP_SH_DSPSFT_7          19
159
#define OP_MASK_DSPSFT_7        0x7f
160
#define OP_SH_SA3               21
161
#define OP_MASK_SA3             0x7
162
#define OP_SH_SA4               21
163
#define OP_MASK_SA4             0xf
164
#define OP_SH_IMM8              16
165
#define OP_MASK_IMM8            0xff
166
#define OP_SH_IMM10             16
167
#define OP_MASK_IMM10           0x3ff
168
#define OP_SH_WRDSP             11
169
#define OP_MASK_WRDSP           0x3f
170
#define OP_SH_RDDSP             16
171
#define OP_MASK_RDDSP           0x3f
172
#define OP_SH_BP                11
173
#define OP_MASK_BP              0x3
174
 
175
/* MIPS MT ASE */
176
#define OP_SH_MT_U              5
177
#define OP_MASK_MT_U            0x1
178
#define OP_SH_MT_H              4
179
#define OP_MASK_MT_H            0x1
180
#define OP_SH_MTACC_T           18
181
#define OP_MASK_MTACC_T         0x3
182
#define OP_SH_MTACC_D           13
183
#define OP_MASK_MTACC_D         0x3
184
 
185
#define OP_OP_COP0              0x10
186
#define OP_OP_COP1              0x11
187
#define OP_OP_COP2              0x12
188
#define OP_OP_COP3              0x13
189
#define OP_OP_LWC1              0x31
190
#define OP_OP_LWC2              0x32
191
#define OP_OP_LWC3              0x33    /* a.k.a. pref */
192
#define OP_OP_LDC1              0x35
193
#define OP_OP_LDC2              0x36
194
#define OP_OP_LDC3              0x37    /* a.k.a. ld */
195
#define OP_OP_SWC1              0x39
196
#define OP_OP_SWC2              0x3a
197
#define OP_OP_SWC3              0x3b
198
#define OP_OP_SDC1              0x3d
199
#define OP_OP_SDC2              0x3e
200
#define OP_OP_SDC3              0x3f    /* a.k.a. sd */
201
 
202
/* Values in the 'VSEL' field.  */
203
#define MDMX_FMTSEL_IMM_QH      0x1d
204
#define MDMX_FMTSEL_IMM_OB      0x1e
205
#define MDMX_FMTSEL_VEC_QH      0x15
206
#define MDMX_FMTSEL_VEC_OB      0x16
207
 
208
/* UDI */
209
#define OP_SH_UDI1              6
210
#define OP_MASK_UDI1            0x1f
211
#define OP_SH_UDI2              6
212
#define OP_MASK_UDI2            0x3ff
213
#define OP_SH_UDI3              6
214
#define OP_MASK_UDI3            0x7fff
215
#define OP_SH_UDI4              6
216
#define OP_MASK_UDI4            0xfffff
217
 
218
/* This structure holds information for a particular instruction.  */
219
 
220
struct mips_opcode
221
{
222
  /* The name of the instruction.  */
223
  const char *name;
224
  /* A string describing the arguments for this instruction.  */
225
  const char *args;
226
  /* The basic opcode for the instruction.  When assembling, this
227
     opcode is modified by the arguments to produce the actual opcode
228
     that is used.  If pinfo is INSN_MACRO, then this is 0.  */
229
  unsigned long match;
230
  /* If pinfo is not INSN_MACRO, then this is a bit mask for the
231
     relevant portions of the opcode when disassembling.  If the
232
     actual opcode anded with the match field equals the opcode field,
233
     then we have found the correct instruction.  If pinfo is
234
     INSN_MACRO, then this field is the macro identifier.  */
235
  unsigned long mask;
236
  /* For a macro, this is INSN_MACRO.  Otherwise, it is a collection
237
     of bits describing the instruction, notably any relevant hazard
238
     information.  */
239
  unsigned long pinfo;
240
  /* A collection of additional bits describing the instruction. */
241
  unsigned long pinfo2;
242
  /* A collection of bits describing the instruction sets of which this
243
     instruction or macro is a member. */
244
  unsigned long membership;
245
};
246
 
247
/* These are the characters which may appear in the args field of an
248
   instruction.  They appear in the order in which the fields appear
249
   when the instruction is used.  Commas and parentheses in the args
250
   string are ignored when assembling, and written into the output
251
   when disassembling.
252
 
253
   Each of these characters corresponds to a mask field defined above.
254
 
255
   "<" 5 bit shift amount (OP_*_SHAMT)
256
   ">" shift amount between 32 and 63, stored after subtracting 32 (OP_*_SHAMT)
257
   "a" 26 bit target address (OP_*_TARGET)
258
   "b" 5 bit base register (OP_*_RS)
259
   "c" 10 bit breakpoint code (OP_*_CODE)
260
   "d" 5 bit destination register specifier (OP_*_RD)
261
   "h" 5 bit prefx hint (OP_*_PREFX)
262
   "i" 16 bit unsigned immediate (OP_*_IMMEDIATE)
263
   "j" 16 bit signed immediate (OP_*_DELTA)
264
   "k" 5 bit cache opcode in target register position (OP_*_CACHE)
265
       Also used for immediate operands in vr5400 vector insns.
266
   "o" 16 bit signed offset (OP_*_DELTA)
267
   "p" 16 bit PC relative branch target address (OP_*_DELTA)
268
   "q" 10 bit extra breakpoint code (OP_*_CODE2)
269
   "r" 5 bit same register used as both source and target (OP_*_RS)
270
   "s" 5 bit source register specifier (OP_*_RS)
271
   "t" 5 bit target register (OP_*_RT)
272
   "u" 16 bit upper 16 bits of address (OP_*_IMMEDIATE)
273
   "v" 5 bit same register used as both source and destination (OP_*_RS)
274
   "w" 5 bit same register used as both target and destination (OP_*_RT)
275
   "U" 5 bit same destination register in both OP_*_RD and OP_*_RT
276
       (used by clo and clz)
277
   "C" 25 bit coprocessor function code (OP_*_COPZ)
278
   "B" 20 bit syscall/breakpoint function code (OP_*_CODE20)
279
   "J" 19 bit wait function code (OP_*_CODE19)
280
   "x" accept and ignore register name
281
   "z" must be zero register
282
   "K" 5 bit Hardware Register (rdhwr instruction) (OP_*_RD)
283
   "+A" 5 bit ins/ext/dins/dext/dinsm/dextm position, which becomes
284
        LSB (OP_*_SHAMT).
285
        Enforces: 0 <= pos < 32.
286
   "+B" 5 bit ins/dins size, which becomes MSB (OP_*_INSMSB).
287
        Requires that "+A" or "+E" occur first to set position.
288
        Enforces: 0 < (pos+size) <= 32.
289
   "+C" 5 bit ext/dext size, which becomes MSBD (OP_*_EXTMSBD).
290
        Requires that "+A" or "+E" occur first to set position.
291
        Enforces: 0 < (pos+size) <= 32.
292
        (Also used by "dext" w/ different limits, but limits for
293
        that are checked by the M_DEXT macro.)
294
   "+E" 5 bit dinsu/dextu position, which becomes LSB-32 (OP_*_SHAMT).
295
        Enforces: 32 <= pos < 64.
296
   "+F" 5 bit "dinsm/dinsu" size, which becomes MSB-32 (OP_*_INSMSB).
297
        Requires that "+A" or "+E" occur first to set position.
298
        Enforces: 32 < (pos+size) <= 64.
299
   "+G" 5 bit "dextm" size, which becomes MSBD-32 (OP_*_EXTMSBD).
300
        Requires that "+A" or "+E" occur first to set position.
301
        Enforces: 32 < (pos+size) <= 64.
302
   "+H" 5 bit "dextu" size, which becomes MSBD (OP_*_EXTMSBD).
303
        Requires that "+A" or "+E" occur first to set position.
304
        Enforces: 32 < (pos+size) <= 64.
305
 
306
   Floating point instructions:
307
   "D" 5 bit destination register (OP_*_FD)
308
   "M" 3 bit compare condition code (OP_*_CCC) (only used for mips4 and up)
309
   "N" 3 bit branch condition code (OP_*_BCC) (only used for mips4 and up)
310
   "S" 5 bit fs source 1 register (OP_*_FS)
311
   "T" 5 bit ft source 2 register (OP_*_FT)
312
   "R" 5 bit fr source 3 register (OP_*_FR)
313
   "V" 5 bit same register used as floating source and destination (OP_*_FS)
314
   "W" 5 bit same register used as floating target and destination (OP_*_FT)
315
 
316
   Coprocessor instructions:
317
   "E" 5 bit target register (OP_*_RT)
318
   "G" 5 bit destination register (OP_*_RD)
319
   "H" 3 bit sel field for (d)mtc* and (d)mfc* (OP_*_SEL)
320
   "P" 5 bit performance-monitor register (OP_*_PERFREG)
321
   "e" 5 bit vector register byte specifier (OP_*_VECBYTE)
322
   "%" 3 bit immediate vr5400 vector alignment operand (OP_*_VECALIGN)
323
   see also "k" above
324
   "+D" Combined destination register ("G") and sel ("H") for CP0 ops,
325
        for pretty-printing in disassembly only.
326
 
327
   Macro instructions:
328
   "A" General 32 bit expression
329
   "I" 32 bit immediate (value placed in imm_expr).
330
   "+I" 32 bit immediate (value placed in imm2_expr).
331
   "F" 64 bit floating point constant in .rdata
332
   "L" 64 bit floating point constant in .lit8
333
   "f" 32 bit floating point constant
334
   "l" 32 bit floating point constant in .lit4
335
 
336
   MDMX instruction operands (note that while these use the FP register
337
   fields, they accept both $fN and $vN names for the registers):
338
   "O"  MDMX alignment offset (OP_*_ALN)
339
   "Q"  MDMX vector/scalar/immediate source (OP_*_VSEL and OP_*_FT)
340
   "X"  MDMX destination register (OP_*_FD)
341
   "Y"  MDMX source register (OP_*_FS)
342
   "Z"  MDMX source register (OP_*_FT)
343
 
344
   DSP ASE usage:
345
   "2" 2 bit unsigned immediate for byte align (OP_*_BP)
346
   "3" 3 bit unsigned immediate (OP_*_SA3)
347
   "4" 4 bit unsigned immediate (OP_*_SA4)
348
   "5" 8 bit unsigned immediate (OP_*_IMM8)
349
   "6" 5 bit unsigned immediate (OP_*_RS)
350
   "7" 2 bit dsp accumulator register (OP_*_DSPACC)
351
   "8" 6 bit unsigned immediate (OP_*_WRDSP)
352
   "9" 2 bit dsp accumulator register (OP_*_DSPACC_S)
353
   "0" 6 bit signed immediate (OP_*_DSPSFT)
354
   ":" 7 bit signed immediate (OP_*_DSPSFT_7)
355
   "'" 6 bit unsigned immediate (OP_*_RDDSP)
356
   "@" 10 bit signed immediate (OP_*_IMM10)
357
 
358
   MT ASE usage:
359
   "!" 1 bit usermode flag (OP_*_MT_U)
360
   "$" 1 bit load high flag (OP_*_MT_H)
361
   "*" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_T)
362
   "&" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_D)
363
   "g" 5 bit coprocessor 1 and 2 destination register (OP_*_RD)
364
   "+t" 5 bit coprocessor 0 destination register (OP_*_RT)
365
   "+T" 5 bit coprocessor 0 destination register (OP_*_RT) - disassembly only
366
 
367
   UDI immediates:
368
   "+1" UDI immediate bits 6-10
369
   "+2" UDI immediate bits 6-15
370
   "+3" UDI immediate bits 6-20
371
   "+4" UDI immediate bits 6-25
372
 
373
   Other:
374
   "()" parens surrounding optional value
375
   ","  separates operands
376
   "[]" brackets around index for vector-op scalar operand specifier (vr5400)
377
   "+"  Start of extension sequence.
378
 
379
   Characters used so far, for quick reference when adding more:
380
   "234567890"
381
   "%[]<>(),+:'@!$*&"
382
   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
383
   "abcdefghijklopqrstuvwxz"
384
 
385
   Extension character sequences used so far ("+" followed by the
386
   following), for quick reference when adding more:
387
   "1234"
388
   "ABCDEFGHIT"
389
   "t"
390
*/
391
 
392
/* These are the bits which may be set in the pinfo field of an
393
   instructions, if it is not equal to INSN_MACRO.  */
394
 
395
/* Modifies the general purpose register in OP_*_RD.  */
396
#define INSN_WRITE_GPR_D            0x00000001
397
/* Modifies the general purpose register in OP_*_RT.  */
398
#define INSN_WRITE_GPR_T            0x00000002
399
/* Modifies general purpose register 31.  */
400
#define INSN_WRITE_GPR_31           0x00000004
401
/* Modifies the floating point register in OP_*_FD.  */
402
#define INSN_WRITE_FPR_D            0x00000008
403
/* Modifies the floating point register in OP_*_FS.  */
404
#define INSN_WRITE_FPR_S            0x00000010
405
/* Modifies the floating point register in OP_*_FT.  */
406
#define INSN_WRITE_FPR_T            0x00000020
407
/* Reads the general purpose register in OP_*_RS.  */
408
#define INSN_READ_GPR_S             0x00000040
409
/* Reads the general purpose register in OP_*_RT.  */
410
#define INSN_READ_GPR_T             0x00000080
411
/* Reads the floating point register in OP_*_FS.  */
412
#define INSN_READ_FPR_S             0x00000100
413
/* Reads the floating point register in OP_*_FT.  */
414
#define INSN_READ_FPR_T             0x00000200
415
/* Reads the floating point register in OP_*_FR.  */
416
#define INSN_READ_FPR_R             0x00000400
417
/* Modifies coprocessor condition code.  */
418
#define INSN_WRITE_COND_CODE        0x00000800
419
/* Reads coprocessor condition code.  */
420
#define INSN_READ_COND_CODE         0x00001000
421
/* TLB operation.  */
422
#define INSN_TLB                    0x00002000
423
/* Reads coprocessor register other than floating point register.  */
424
#define INSN_COP                    0x00004000
425
/* Instruction loads value from memory, requiring delay.  */
426
#define INSN_LOAD_MEMORY_DELAY      0x00008000
427
/* Instruction loads value from coprocessor, requiring delay.  */
428
#define INSN_LOAD_COPROC_DELAY      0x00010000
429
/* Instruction has unconditional branch delay slot.  */
430
#define INSN_UNCOND_BRANCH_DELAY    0x00020000
431
/* Instruction has conditional branch delay slot.  */
432
#define INSN_COND_BRANCH_DELAY      0x00040000
433
/* Conditional branch likely: if branch not taken, insn nullified.  */
434
#define INSN_COND_BRANCH_LIKELY     0x00080000
435
/* Moves to coprocessor register, requiring delay.  */
436
#define INSN_COPROC_MOVE_DELAY      0x00100000
437
/* Loads coprocessor register from memory, requiring delay.  */
438
#define INSN_COPROC_MEMORY_DELAY    0x00200000
439
/* Reads the HI register.  */
440
#define INSN_READ_HI                0x00400000
441
/* Reads the LO register.  */
442
#define INSN_READ_LO                0x00800000
443
/* Modifies the HI register.  */
444
#define INSN_WRITE_HI               0x01000000
445
/* Modifies the LO register.  */
446
#define INSN_WRITE_LO               0x02000000
447
/* Takes a trap (easier to keep out of delay slot).  */
448
#define INSN_TRAP                   0x04000000
449
/* Instruction stores value into memory.  */
450
#define INSN_STORE_MEMORY           0x08000000
451
/* Instruction uses single precision floating point.  */
452
#define FP_S                        0x10000000
453
/* Instruction uses double precision floating point.  */
454
#define FP_D                        0x20000000
455
/* Instruction is part of the tx39's integer multiply family.    */
456
#define INSN_MULT                   0x40000000
457
/* Instruction synchronize shared memory.  */
458
#define INSN_SYNC                   0x80000000
459
 
460
/* These are the bits which may be set in the pinfo2 field of an
461
   instruction. */
462
 
463
/* Instruction is a simple alias (I.E. "move" for daddu/addu/or) */
464
#define INSN2_ALIAS                 0x00000001
465
/* Instruction reads MDMX accumulator. */
466
#define INSN2_READ_MDMX_ACC         0x00000002
467
/* Instruction writes MDMX accumulator. */
468
#define INSN2_WRITE_MDMX_ACC        0x00000004
469
 
470
/* Instruction is actually a macro.  It should be ignored by the
471
   disassembler, and requires special treatment by the assembler.  */
472
#define INSN_MACRO                  0xffffffff
473
 
474
/* Masks used to mark instructions to indicate which MIPS ISA level
475
   they were introduced in.  INSN_ISA_MASK masks an enumeration that
476
   specifies the base ISA level(s).  The remainder of a 32-bit
477
   word constructed using these macros is a bitmask of the remaining
478
   INSN_* values below.  */
479
 
480
#define INSN_ISA_MASK             0x0000000ful
481
 
482
/* We cannot start at zero due to ISA_UNKNOWN below.  */
483
#define INSN_ISA1                 1
484
#define INSN_ISA2                 2
485
#define INSN_ISA3                 3
486
#define INSN_ISA4                 4
487
#define INSN_ISA5                 5
488
#define INSN_ISA32                6
489
#define INSN_ISA32R2              7
490
#define INSN_ISA64                8
491
#define INSN_ISA64R2              9
492
/* Below this point the INSN_* values correspond to combinations of ISAs.
493
   They are only for use in the opcodes table to indicate membership of
494
   a combination of ISAs that cannot be expressed using the usual inclusion
495
   ordering on the above INSN_* values.  */
496
#define INSN_ISA3_32              10
497
#define INSN_ISA3_32R2            11
498
#define INSN_ISA4_32              12
499
#define INSN_ISA4_32R2            13
500
#define INSN_ISA5_32R2            14
501
 
502
/* Given INSN_ISA* values X and Y, where X ranges over INSN_ISA1 through
503
   INSN_ISA5_32R2 and Y ranges over INSN_ISA1 through INSN_ISA64R2,
504
   this table describes whether at least one of the ISAs described by X
505
   is/are implemented by ISA Y.  (Think of Y as the ISA level supported by
506
   a particular core and X as the ISA level(s) at which a certain instruction
507
   is defined.)  The ISA(s) described by X is/are implemented by Y iff
508
   (mips_isa_table[(Y & INSN_ISA_MASK) - 1] >> ((X & INSN_ISA_MASK) - 1)) & 1
509
   is non-zero.  */
510
static const unsigned int mips_isa_table[] =
511
  { 0x0001, 0x0003, 0x0607, 0x1e0f, 0x3e1f, 0x0a23, 0x3e63, 0x3ebf, 0x3fff };
512
 
513
/* Masks used for Chip specific instructions.  */
514
#define INSN_CHIP_MASK            0xc3ff0800
515
 
516
/* Cavium Networks Octeon instructions.  */
517
#define INSN_OCTEON               0x00000800
518
 
519
/* Masks used for MIPS-defined ASEs.  */
520
#define INSN_ASE_MASK             0x3c00f000
521
 
522
/* DSP ASE */
523
#define INSN_DSP                  0x00001000
524
#define INSN_DSP64                0x00002000
525
/* MIPS 16 ASE */
526
#define INSN_MIPS16               0x00004000
527
/* MIPS-3D ASE */
528
#define INSN_MIPS3D               0x00008000
529
 
530
/* MIPS R4650 instruction.  */
531
#define INSN_4650                 0x00010000
532
/* LSI R4010 instruction.  */
533
#define INSN_4010                 0x00020000
534
/* NEC VR4100 instruction.  */
535
#define INSN_4100                 0x00040000
536
/* Toshiba R3900 instruction.  */
537
#define INSN_3900                 0x00080000
538
/* MIPS R10000 instruction.  */
539
#define INSN_10000                0x00100000
540
/* Broadcom SB-1 instruction.  */
541
#define INSN_SB1                  0x00200000
542
/* NEC VR4111/VR4181 instruction.  */
543
#define INSN_4111                 0x00400000
544
/* NEC VR4120 instruction.  */
545
#define INSN_4120                 0x00800000
546
/* NEC VR5400 instruction.  */
547
#define INSN_5400                 0x01000000
548
/* NEC VR5500 instruction.  */
549
#define INSN_5500                 0x02000000
550
 
551
/* MDMX ASE */
552
#define INSN_MDMX                 0x04000000
553
/* MT ASE */
554
#define INSN_MT                   0x08000000
555
/* SmartMIPS ASE  */
556
#define INSN_SMARTMIPS            0x10000000
557
/* DSP R2 ASE  */
558
#define INSN_DSPR2                0x20000000
559
/* ST Microelectronics Loongson 2E.  */
560
#define INSN_LOONGSON_2E          0x40000000
561
/* ST Microelectronics Loongson 2F.  */
562
#define INSN_LOONGSON_2F          0x80000000
563
 
564
/* MIPS ISA defines, use instead of hardcoding ISA level.  */
565
 
566
#define       ISA_UNKNOWN     0               /* Gas internal use.  */
567
#define       ISA_MIPS1       INSN_ISA1
568
#define       ISA_MIPS2       INSN_ISA2
569
#define       ISA_MIPS3       INSN_ISA3
570
#define       ISA_MIPS4       INSN_ISA4
571
#define       ISA_MIPS5       INSN_ISA5
572
 
573
#define       ISA_MIPS32      INSN_ISA32
574
#define       ISA_MIPS64      INSN_ISA64
575
 
576
#define       ISA_MIPS32R2    INSN_ISA32R2
577
#define       ISA_MIPS64R2    INSN_ISA64R2
578
 
579
 
580
/* CPU defines, use instead of hardcoding processor number. Keep this
581
   in sync with bfd/archures.c in order for machine selection to work.  */
582
#define CPU_UNKNOWN     0               /* Gas internal use.  */
583
#define CPU_R3000       3000
584
#define CPU_R3900       3900
585
#define CPU_R4000       4000
586
#define CPU_R4010       4010
587
#define CPU_VR4100      4100
588
#define CPU_R4111       4111
589
#define CPU_VR4120      4120
590
#define CPU_R4300       4300
591
#define CPU_R4400       4400
592
#define CPU_R4600       4600
593
#define CPU_R4650       4650
594
#define CPU_R5000       5000
595
#define CPU_VR5400      5400
596
#define CPU_VR5500      5500
597
#define CPU_R6000       6000
598
#define CPU_RM7000      7000
599
#define CPU_R8000       8000
600
#define CPU_RM9000      9000
601
#define CPU_R10000      10000
602
#define CPU_R12000      12000
603
#define CPU_MIPS16      16
604
#define CPU_MIPS32      32
605
#define CPU_MIPS32R2    33
606
#define CPU_MIPS5       5
607
#define CPU_MIPS64      64
608
#define CPU_MIPS64R2    65
609
#define CPU_SB1         12310201        /* octal 'SB', 01.  */
610
#define CPU_LOONGSON_2E 3001
611
#define CPU_LOONGSON_2F 3002
612
#define CPU_OCTEON      6501
613
 
614
/* Test for membership in an ISA including chip specific ISAs.  INSN
615
   is pointer to an element of the opcode table; ISA is the specified
616
   ISA/ASE bitmask to test against; and CPU is the CPU specific ISA to
617
   test, or zero if no CPU specific ISA test is desired.  */
618
 
619
#define OPCODE_IS_MEMBER(insn, isa, cpu)                                \
620
    (((isa & INSN_ISA_MASK) != 0                                        \
621
      && ((insn)->membership & INSN_ISA_MASK) != 0                      \
622
      && ((mips_isa_table [(isa & INSN_ISA_MASK) - 1] >>                \
623
           (((insn)->membership & INSN_ISA_MASK) - 1)) & 1) != 0)       \
624
     || ((isa & ~INSN_ISA_MASK)                                         \
625
          & ((insn)->membership & ~INSN_ISA_MASK)) != 0                 \
626
     || (cpu == CPU_R4650 && ((insn)->membership & INSN_4650) != 0)      \
627
     || (cpu == CPU_RM7000 && ((insn)->membership & INSN_4650) != 0)     \
628
     || (cpu == CPU_RM9000 && ((insn)->membership & INSN_4650) != 0)     \
629
     || (cpu == CPU_R4010 && ((insn)->membership & INSN_4010) != 0)      \
630
     || (cpu == CPU_VR4100 && ((insn)->membership & INSN_4100) != 0)     \
631
     || (cpu == CPU_R3900 && ((insn)->membership & INSN_3900) != 0)      \
632
     || ((cpu == CPU_R10000 || cpu == CPU_R12000)                       \
633
         && ((insn)->membership & INSN_10000) != 0)                      \
634
     || (cpu == CPU_SB1 && ((insn)->membership & INSN_SB1) != 0) \
635
     || (cpu == CPU_R4111 && ((insn)->membership & INSN_4111) != 0)      \
636
     || (cpu == CPU_VR4120 && ((insn)->membership & INSN_4120) != 0)     \
637
     || (cpu == CPU_VR5400 && ((insn)->membership & INSN_5400) != 0)     \
638
     || (cpu == CPU_VR5500 && ((insn)->membership & INSN_5500) != 0)     \
639
     || (cpu == CPU_LOONGSON_2E                                         \
640
         && ((insn)->membership & INSN_LOONGSON_2E) != 0)               \
641
     || (cpu == CPU_LOONGSON_2F                                         \
642
         && ((insn)->membership & INSN_LOONGSON_2F) != 0)               \
643
     || (cpu == CPU_OCTEON                                              \
644
         && ((insn)->membership & INSN_OCTEON) != 0)                     \
645
     || 0)       /* Please keep this term for easier source merging.  */
646
 
647
/* This is a list of macro expanded instructions.
648
 
649
   _I appended means immediate
650
   _A appended means address
651
   _AB appended means address with base register
652
   _D appended means 64 bit floating point constant
653
   _S appended means 32 bit floating point constant.  */
654
 
655
enum
656
{
657
  M_ABS,
658
  M_ADD_I,
659
  M_ADDU_I,
660
  M_AND_I,
661
  M_BALIGN,
662
  M_BEQ,
663
  M_BEQ_I,
664
  M_BEQL_I,
665
  M_BGE,
666
  M_BGEL,
667
  M_BGE_I,
668
  M_BGEL_I,
669
  M_BGEU,
670
  M_BGEUL,
671
  M_BGEU_I,
672
  M_BGEUL_I,
673
  M_BGT,
674
  M_BGTL,
675
  M_BGT_I,
676
  M_BGTL_I,
677
  M_BGTU,
678
  M_BGTUL,
679
  M_BGTU_I,
680
  M_BGTUL_I,
681
  M_BLE,
682
  M_BLEL,
683
  M_BLE_I,
684
  M_BLEL_I,
685
  M_BLEU,
686
  M_BLEUL,
687
  M_BLEU_I,
688
  M_BLEUL_I,
689
  M_BLT,
690
  M_BLTL,
691
  M_BLT_I,
692
  M_BLTL_I,
693
  M_BLTU,
694
  M_BLTUL,
695
  M_BLTU_I,
696
  M_BLTUL_I,
697
  M_BNE,
698
  M_BNE_I,
699
  M_BNEL_I,
700
  M_CACHE_AB,
701
  M_DABS,
702
  M_DADD_I,
703
  M_DADDU_I,
704
  M_DDIV_3,
705
  M_DDIV_3I,
706
  M_DDIVU_3,
707
  M_DDIVU_3I,
708
  M_DEXT,
709
  M_DINS,
710
  M_DIV_3,
711
  M_DIV_3I,
712
  M_DIVU_3,
713
  M_DIVU_3I,
714
  M_DLA_AB,
715
  M_DLCA_AB,
716
  M_DLI,
717
  M_DMUL,
718
  M_DMUL_I,
719
  M_DMULO,
720
  M_DMULO_I,
721
  M_DMULOU,
722
  M_DMULOU_I,
723
  M_DREM_3,
724
  M_DREM_3I,
725
  M_DREMU_3,
726
  M_DREMU_3I,
727
  M_DSUB_I,
728
  M_DSUBU_I,
729
  M_DSUBU_I_2,
730
  M_J_A,
731
  M_JAL_1,
732
  M_JAL_2,
733
  M_JAL_A,
734
  M_L_DOB,
735
  M_L_DAB,
736
  M_LA_AB,
737
  M_LB_A,
738
  M_LB_AB,
739
  M_LBU_A,
740
  M_LBU_AB,
741
  M_LCA_AB,
742
  M_LD_A,
743
  M_LD_OB,
744
  M_LD_AB,
745
  M_LDC1_AB,
746
  M_LDC2_AB,
747
  M_LDC3_AB,
748
  M_LDL_AB,
749
  M_LDR_AB,
750
  M_LH_A,
751
  M_LH_AB,
752
  M_LHU_A,
753
  M_LHU_AB,
754
  M_LI,
755
  M_LI_D,
756
  M_LI_DD,
757
  M_LI_S,
758
  M_LI_SS,
759
  M_LL_AB,
760
  M_LLD_AB,
761
  M_LS_A,
762
  M_LW_A,
763
  M_LW_AB,
764
  M_LWC0_A,
765
  M_LWC0_AB,
766
  M_LWC1_A,
767
  M_LWC1_AB,
768
  M_LWC2_A,
769
  M_LWC2_AB,
770
  M_LWC3_A,
771
  M_LWC3_AB,
772
  M_LWL_A,
773
  M_LWL_AB,
774
  M_LWR_A,
775
  M_LWR_AB,
776
  M_LWU_AB,
777
  M_MOVE,
778
  M_MUL,
779
  M_MUL_I,
780
  M_MULO,
781
  M_MULO_I,
782
  M_MULOU,
783
  M_MULOU_I,
784
  M_NOR_I,
785
  M_OR_I,
786
  M_REM_3,
787
  M_REM_3I,
788
  M_REMU_3,
789
  M_REMU_3I,
790
  M_DROL,
791
  M_ROL,
792
  M_DROL_I,
793
  M_ROL_I,
794
  M_DROR,
795
  M_ROR,
796
  M_DROR_I,
797
  M_ROR_I,
798
  M_S_DA,
799
  M_S_DOB,
800
  M_S_DAB,
801
  M_S_S,
802
  M_SC_AB,
803
  M_SCD_AB,
804
  M_SD_A,
805
  M_SD_OB,
806
  M_SD_AB,
807
  M_SDC1_AB,
808
  M_SDC2_AB,
809
  M_SDC3_AB,
810
  M_SDL_AB,
811
  M_SDR_AB,
812
  M_SEQ,
813
  M_SEQ_I,
814
  M_SGE,
815
  M_SGE_I,
816
  M_SGEU,
817
  M_SGEU_I,
818
  M_SGT,
819
  M_SGT_I,
820
  M_SGTU,
821
  M_SGTU_I,
822
  M_SLE,
823
  M_SLE_I,
824
  M_SLEU,
825
  M_SLEU_I,
826
  M_SLT_I,
827
  M_SLTU_I,
828
  M_SNE,
829
  M_SNE_I,
830
  M_SB_A,
831
  M_SB_AB,
832
  M_SH_A,
833
  M_SH_AB,
834
  M_SW_A,
835
  M_SW_AB,
836
  M_SWC0_A,
837
  M_SWC0_AB,
838
  M_SWC1_A,
839
  M_SWC1_AB,
840
  M_SWC2_A,
841
  M_SWC2_AB,
842
  M_SWC3_A,
843
  M_SWC3_AB,
844
  M_SWL_A,
845
  M_SWL_AB,
846
  M_SWR_A,
847
  M_SWR_AB,
848
  M_SUB_I,
849
  M_SUBU_I,
850
  M_SUBU_I_2,
851
  M_TEQ_I,
852
  M_TGE_I,
853
  M_TGEU_I,
854
  M_TLT_I,
855
  M_TLTU_I,
856
  M_TNE_I,
857
  M_TRUNCWD,
858
  M_TRUNCWS,
859
  M_ULD,
860
  M_ULD_A,
861
  M_ULH,
862
  M_ULH_A,
863
  M_ULHU,
864
  M_ULHU_A,
865
  M_ULW,
866
  M_ULW_A,
867
  M_USH,
868
  M_USH_A,
869
  M_USW,
870
  M_USW_A,
871
  M_USD,
872
  M_USD_A,
873
  M_XOR_I,
874
  M_COP0,
875
  M_COP1,
876
  M_COP2,
877
  M_COP3,
878
  M_NUM_MACROS
879
};
880
 
881
 
882
/* The order of overloaded instructions matters.  Label arguments and
883
   register arguments look the same. Instructions that can have either
884
   for arguments must apear in the correct order in this table for the
885
   assembler to pick the right one. In other words, entries with
886
   immediate operands must apear after the same instruction with
887
   registers.
888
 
889
   Many instructions are short hand for other instructions (i.e., The
890
   jal <register> instruction is short for jalr <register>).  */
891
 
892
extern const struct mips_opcode mips_builtin_opcodes[];
893
extern const int bfd_mips_num_builtin_opcodes;
894
extern struct mips_opcode *mips_opcodes;
895
extern int bfd_mips_num_opcodes;
896
#define NUMOPCODES bfd_mips_num_opcodes
897
 
898
 
899
/* The rest of this file adds definitions for the mips16 TinyRISC
900
   processor.  */
901
 
902
/* These are the bitmasks and shift counts used for the different
903
   fields in the instruction formats.  Other than OP, no masks are
904
   provided for the fixed portions of an instruction, since they are
905
   not needed.
906
 
907
   The I format uses IMM11.
908
 
909
   The RI format uses RX and IMM8.
910
 
911
   The RR format uses RX, and RY.
912
 
913
   The RRI format uses RX, RY, and IMM5.
914
 
915
   The RRR format uses RX, RY, and RZ.
916
 
917
   The RRI_A format uses RX, RY, and IMM4.
918
 
919
   The SHIFT format uses RX, RY, and SHAMT.
920
 
921
   The I8 format uses IMM8.
922
 
923
   The I8_MOVR32 format uses RY and REGR32.
924
 
925
   The IR_MOV32R format uses REG32R and MOV32Z.
926
 
927
   The I64 format uses IMM8.
928
 
929
   The RI64 format uses RY and IMM5.
930
   */
931
 
932
#define MIPS16OP_MASK_OP        0x1f
933
#define MIPS16OP_SH_OP          11
934
#define MIPS16OP_MASK_IMM11     0x7ff
935
#define MIPS16OP_SH_IMM11       0
936
#define MIPS16OP_MASK_RX        0x7
937
#define MIPS16OP_SH_RX          8
938
#define MIPS16OP_MASK_IMM8      0xff
939
#define MIPS16OP_SH_IMM8        0
940
#define MIPS16OP_MASK_RY        0x7
941
#define MIPS16OP_SH_RY          5
942
#define MIPS16OP_MASK_IMM5      0x1f
943
#define MIPS16OP_SH_IMM5        0
944
#define MIPS16OP_MASK_RZ        0x7
945
#define MIPS16OP_SH_RZ          2
946
#define MIPS16OP_MASK_IMM4      0xf
947
#define MIPS16OP_SH_IMM4        0
948
#define MIPS16OP_MASK_REGR32    0x1f
949
#define MIPS16OP_SH_REGR32      0
950
#define MIPS16OP_MASK_REG32R    0x1f
951
#define MIPS16OP_SH_REG32R      3
952
#define MIPS16OP_EXTRACT_REG32R(i) ((((i) >> 5) & 7) | ((i) & 0x18))
953
#define MIPS16OP_MASK_MOVE32Z   0x7
954
#define MIPS16OP_SH_MOVE32Z     0
955
#define MIPS16OP_MASK_IMM6      0x3f
956
#define MIPS16OP_SH_IMM6        5
957
 
958
/* These are the characters which may appears in the args field of an
959
   instruction.  They appear in the order in which the fields appear
960
   when the instruction is used.  Commas and parentheses in the args
961
   string are ignored when assembling, and written into the output
962
   when disassembling.
963
 
964
   "y" 3 bit register (MIPS16OP_*_RY)
965
   "x" 3 bit register (MIPS16OP_*_RX)
966
   "z" 3 bit register (MIPS16OP_*_RZ)
967
   "Z" 3 bit register (MIPS16OP_*_MOVE32Z)
968
   "v" 3 bit same register as source and destination (MIPS16OP_*_RX)
969
   "w" 3 bit same register as source and destination (MIPS16OP_*_RY)
970
   "0" zero register ($0)
971
   "S" stack pointer ($sp or $29)
972
   "P" program counter
973
   "R" return address register ($ra or $31)
974
   "X" 5 bit MIPS register (MIPS16OP_*_REGR32)
975
   "Y" 5 bit MIPS register (MIPS16OP_*_REG32R)
976
   "6" 6 bit unsigned break code (MIPS16OP_*_IMM6)
977
   "a" 26 bit jump address
978
   "e" 11 bit extension value
979
   "l" register list for entry instruction
980
   "L" register list for exit instruction
981
 
982
   The remaining codes may be extended.  Except as otherwise noted,
983
   the full extended operand is a 16 bit signed value.
984
   "<" 3 bit unsigned shift count * 0 (MIPS16OP_*_RZ) (full 5 bit unsigned)
985
   ">" 3 bit unsigned shift count * 0 (MIPS16OP_*_RX) (full 5 bit unsigned)
986
   "[" 3 bit unsigned shift count * 0 (MIPS16OP_*_RZ) (full 6 bit unsigned)
987
   "]" 3 bit unsigned shift count * 0 (MIPS16OP_*_RX) (full 6 bit unsigned)
988
   "4" 4 bit signed immediate * 0 (MIPS16OP_*_IMM4) (full 15 bit signed)
989
   "5" 5 bit unsigned immediate * 0 (MIPS16OP_*_IMM5)
990
   "H" 5 bit unsigned immediate * 2 (MIPS16OP_*_IMM5)
991
   "W" 5 bit unsigned immediate * 4 (MIPS16OP_*_IMM5)
992
   "D" 5 bit unsigned immediate * 8 (MIPS16OP_*_IMM5)
993
   "j" 5 bit signed immediate * 0 (MIPS16OP_*_IMM5)
994
   "8" 8 bit unsigned immediate * 0 (MIPS16OP_*_IMM8)
995
   "V" 8 bit unsigned immediate * 4 (MIPS16OP_*_IMM8)
996
   "C" 8 bit unsigned immediate * 8 (MIPS16OP_*_IMM8)
997
   "U" 8 bit unsigned immediate * 0 (MIPS16OP_*_IMM8) (full 16 bit unsigned)
998
   "k" 8 bit signed immediate * 0 (MIPS16OP_*_IMM8)
999
   "K" 8 bit signed immediate * 8 (MIPS16OP_*_IMM8)
1000
   "p" 8 bit conditional branch address (MIPS16OP_*_IMM8)
1001
   "q" 11 bit branch address (MIPS16OP_*_IMM11)
1002
   "A" 8 bit PC relative address * 4 (MIPS16OP_*_IMM8)
1003
   "B" 5 bit PC relative address * 8 (MIPS16OP_*_IMM5)
1004
   "E" 5 bit PC relative address * 4 (MIPS16OP_*_IMM5)
1005
   "m" 7 bit register list for save instruction (18 bit extended)
1006
   "M" 7 bit register list for restore instruction (18 bit extended)
1007
  */
1008
 
1009
/* Save/restore encoding for the args field when all 4 registers are
1010
   either saved as arguments or saved/restored as statics.  */
1011
#define MIPS16_ALL_ARGS    0xe
1012
#define MIPS16_ALL_STATICS 0xb
1013
 
1014
/* For the mips16, we use the same opcode table format and a few of
1015
   the same flags.  However, most of the flags are different.  */
1016
 
1017
/* Modifies the register in MIPS16OP_*_RX.  */
1018
#define MIPS16_INSN_WRITE_X                 0x00000001
1019
/* Modifies the register in MIPS16OP_*_RY.  */
1020
#define MIPS16_INSN_WRITE_Y                 0x00000002
1021
/* Modifies the register in MIPS16OP_*_RZ.  */
1022
#define MIPS16_INSN_WRITE_Z                 0x00000004
1023
/* Modifies the T ($24) register.  */
1024
#define MIPS16_INSN_WRITE_T                 0x00000008
1025
/* Modifies the SP ($29) register.  */
1026
#define MIPS16_INSN_WRITE_SP                0x00000010
1027
/* Modifies the RA ($31) register.  */
1028
#define MIPS16_INSN_WRITE_31                0x00000020
1029
/* Modifies the general purpose register in MIPS16OP_*_REG32R.  */
1030
#define MIPS16_INSN_WRITE_GPR_Y             0x00000040
1031
/* Reads the register in MIPS16OP_*_RX.  */
1032
#define MIPS16_INSN_READ_X                  0x00000080
1033
/* Reads the register in MIPS16OP_*_RY.  */
1034
#define MIPS16_INSN_READ_Y                  0x00000100
1035
/* Reads the register in MIPS16OP_*_MOVE32Z.  */
1036
#define MIPS16_INSN_READ_Z                  0x00000200
1037
/* Reads the T ($24) register.  */
1038
#define MIPS16_INSN_READ_T                  0x00000400
1039
/* Reads the SP ($29) register.  */
1040
#define MIPS16_INSN_READ_SP                 0x00000800
1041
/* Reads the RA ($31) register.  */
1042
#define MIPS16_INSN_READ_31                 0x00001000
1043
/* Reads the program counter.  */
1044
#define MIPS16_INSN_READ_PC                 0x00002000
1045
/* Reads the general purpose register in MIPS16OP_*_REGR32.  */
1046
#define MIPS16_INSN_READ_GPR_X              0x00004000
1047
/* Is a branch insn. */
1048
#define MIPS16_INSN_BRANCH                  0x00010000
1049
 
1050
/* The following flags have the same value for the mips16 opcode
1051
   table:
1052
   INSN_UNCOND_BRANCH_DELAY
1053
   INSN_COND_BRANCH_DELAY
1054
   INSN_COND_BRANCH_LIKELY (never used)
1055
   INSN_READ_HI
1056
   INSN_READ_LO
1057
   INSN_WRITE_HI
1058
   INSN_WRITE_LO
1059
   INSN_TRAP
1060
   INSN_ISA3
1061
   */
1062
 
1063
extern const struct mips_opcode mips16_opcodes[];
1064
extern const int bfd_mips16_num_opcodes;
1065
 
1066
#endif /* _MIPS_H_ */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.