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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [include/] [opcode/] [cris.h] - Blame information for rev 24

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/* cris.h -- Header file for CRIS opcode and register tables.
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   Copyright (C) 2000, 2001, 2004, 2010 Free Software Foundation, Inc.
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   Contributed by Axis Communications AB, Lund, Sweden.
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   Originally written for GAS 1.38.1 by Mikael Asker.
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   Updated, BFDized and GNUified by Hans-Peter Nilsson.
6
 
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   This file is part of GAS, GDB and the GNU binutils.
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9
   GAS, GDB, and GNU binutils is free software; you can redistribute it
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   and/or modify it under the terms of the GNU General Public License as
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   published by the Free Software Foundation; either version 3, or (at your
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   option) any later version.
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   GAS, GDB, and GNU binutils are distributed in the hope that they will be
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   useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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24
#ifndef __CRIS_H_INCLUDED_
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#define __CRIS_H_INCLUDED_
26
 
27
#if !defined(__STDC__) && !defined(const)
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#define const
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#endif
30
 
31
 
32
/* Registers.  */
33
#define MAX_REG (15)
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#define REG_SP (14)
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#define REG_PC (15)
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/* CPU version control of disassembly and assembly of instructions.
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   May affect how the instruction is assembled, at least the size of
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   immediate operands.  */
40
enum cris_insn_version_usage
41
{
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  /* Any version.  */
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  cris_ver_version_all=0,
44
 
45
  /* Indeterminate (intended for disassembly only, or obsolete).  */
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  cris_ver_warning,
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  /* Only for v0..3 (Etrax 1..4).  */
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  cris_ver_v0_3,
50
 
51
  /* Only for v3 or higher (ETRAX 4 and beyond).  */
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  cris_ver_v3p,
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54
  /* Only for v8 (Etrax 100).  */
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  cris_ver_v8,
56
 
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  /* Only for v8 or higher (ETRAX 100, ETRAX 100 LX).  */
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  cris_ver_v8p,
59
 
60
  /* Only for v0..10.  FIXME: Not sure what to do with this.  */
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  cris_ver_sim_v0_10,
62
 
63
  /* Only for v0..10.  */
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  cris_ver_v0_10,
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66
  /* Only for v3..10.  (ETRAX 4, ETRAX 100 and ETRAX 100 LX).  */
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  cris_ver_v3_10,
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  /* Only for v8..10 (ETRAX 100 and ETRAX 100 LX).  */
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  cris_ver_v8_10,
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72
  /* Only for v10 (ETRAX 100 LX) and same series.  */
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  cris_ver_v10,
74
 
75
  /* Only for v10 (ETRAX 100 LX) and same series.  */
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  cris_ver_v10p,
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78
  /* Only for v32 or higher (codename GUINNESS).
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     Of course some or all these of may change to cris_ver_v32p if/when
80
     there's a new revision. */
81
  cris_ver_v32p
82
};
83
 
84
 
85
/* Special registers.  */
86
struct cris_spec_reg
87
{
88
  const char *const name;
89
  unsigned int number;
90
 
91
  /* The size of the register.  */
92
  unsigned int reg_size;
93
 
94
  /* What CPU version the special register of that name is implemented
95
     in.  If cris_ver_warning, emit an unimplemented-warning.  */
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  enum cris_insn_version_usage applicable_version;
97
 
98
  /* There might be a specific warning for using a special register
99
     here.  */
100
  const char *const warning;
101
};
102
extern const struct cris_spec_reg cris_spec_regs[];
103
 
104
 
105
/* Support registers (kind of special too, but not named as such).  */
106
struct cris_support_reg
107
{
108
  const char *const name;
109
  unsigned int number;
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};
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extern const struct cris_support_reg cris_support_regs[];
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113
struct cris_cond15
114
{
115
  /* The name of the condition.  */
116
  const char *const name;
117
 
118
  /* What CPU version this condition name applies to.  */
119
  enum cris_insn_version_usage applicable_version;
120
};
121
extern const struct cris_cond15 cris_conds15[];
122
 
123
/* Opcode-dependent constants.  */
124
#define AUTOINCR_BIT (0x04)
125
 
126
/* Prefixes.  */
127
#define BDAP_QUICK_OPCODE (0x0100)
128
#define BDAP_QUICK_Z_BITS (0x0e00)
129
 
130
#define BIAP_OPCODE       (0x0540)
131
#define BIAP_Z_BITS       (0x0a80)
132
 
133
#define DIP_OPCODE        (0x0970)
134
#define DIP_Z_BITS        (0xf280)
135
 
136
#define BDAP_INDIR_LOW    (0x40)
137
#define BDAP_INDIR_LOW_Z  (0x80)
138
#define BDAP_INDIR_HIGH   (0x09)
139
#define BDAP_INDIR_HIGH_Z (0x02)
140
 
141
#define BDAP_INDIR_OPCODE (BDAP_INDIR_HIGH * 0x0100 + BDAP_INDIR_LOW)
142
#define BDAP_INDIR_Z_BITS (BDAP_INDIR_HIGH_Z * 0x100 + BDAP_INDIR_LOW_Z)
143
#define BDAP_PC_LOW       (BDAP_INDIR_LOW + REG_PC)
144
#define BDAP_INCR_HIGH    (BDAP_INDIR_HIGH + AUTOINCR_BIT)
145
 
146
/* No prefix must have this code for its "match" bits in the
147
   opcode-table.  "BCC .+2" will do nicely.  */
148
#define NO_CRIS_PREFIX 0
149
 
150
/* Definitions for condition codes.  */
151
#define CC_CC  0x0
152
#define CC_HS  0x0
153
#define CC_CS  0x1
154
#define CC_LO  0x1
155
#define CC_NE  0x2
156
#define CC_EQ  0x3
157
#define CC_VC  0x4
158
#define CC_VS  0x5
159
#define CC_PL  0x6
160
#define CC_MI  0x7
161
#define CC_LS  0x8
162
#define CC_HI  0x9
163
#define CC_GE  0xA
164
#define CC_LT  0xB
165
#define CC_GT  0xC
166
#define CC_LE  0xD
167
#define CC_A   0xE
168
#define CC_EXT 0xF
169
 
170
/* A table of strings "cc", "cs"... indexed with condition code
171
   values as above.  */
172
extern const char *const cris_cc_strings[];
173
 
174
/* Bcc quick.  */
175
#define BRANCH_QUICK_LOW  (0)
176
#define BRANCH_QUICK_HIGH (0)
177
#define BRANCH_QUICK_OPCODE (BRANCH_QUICK_HIGH * 0x0100 + BRANCH_QUICK_LOW)
178
#define BRANCH_QUICK_Z_BITS (0x0F00)
179
 
180
/* BA quick.  */
181
#define BA_QUICK_HIGH (BRANCH_QUICK_HIGH + CC_A * 0x10)
182
#define BA_QUICK_OPCODE (BA_QUICK_HIGH * 0x100 + BRANCH_QUICK_LOW)
183
 
184
/* Bcc [PC+].  */
185
#define BRANCH_PC_LOW    (0xFF)
186
#define BRANCH_INCR_HIGH (0x0D)
187
#define BA_PC_INCR_OPCODE \
188
 ((BRANCH_INCR_HIGH + CC_A * 0x10) * 0x0100 + BRANCH_PC_LOW)
189
 
190
/* Jump.  */
191
/* Note that old versions generated special register 8 (in high bits)
192
   and not-that-old versions recognized it as a jump-instruction.
193
   That opcode now belongs to JUMPU.  */
194
#define JUMP_INDIR_OPCODE (0x0930)
195
#define JUMP_INDIR_Z_BITS (0xf2c0)
196
#define JUMP_PC_INCR_OPCODE \
197
 (JUMP_INDIR_OPCODE + AUTOINCR_BIT * 0x0100 + REG_PC)
198
 
199
#define MOVE_M_TO_PREG_OPCODE 0x0a30
200
#define MOVE_M_TO_PREG_ZBITS 0x01c0
201
 
202
/* BDAP.D N,PC.  */
203
#define MOVE_PC_INCR_OPCODE_PREFIX \
204
 (((BDAP_INCR_HIGH | (REG_PC << 4)) << 8) | BDAP_PC_LOW | (2 << 4))
205
#define MOVE_PC_INCR_OPCODE_SUFFIX \
206
 (MOVE_M_TO_PREG_OPCODE | REG_PC | (AUTOINCR_BIT << 8))
207
 
208
#define JUMP_PC_INCR_OPCODE_V32 (0x0DBF)
209
 
210
/* BA DWORD (V32).  */
211
#define BA_DWORD_OPCODE (0x0EBF)
212
 
213
/* Nop.  */
214
#define NOP_OPCODE (0x050F)
215
#define NOP_Z_BITS (0xFFFF ^ NOP_OPCODE)
216
 
217
#define NOP_OPCODE_V32 (0x05B0)
218
#define NOP_Z_BITS_V32 (0xFFFF ^ NOP_OPCODE_V32)
219
 
220
/* For the compatibility mode, let's use "MOVE R0,P0".  Doesn't affect
221
   registers or flags.  Unfortunately shuts off interrupts for one cycle
222
   for < v32, but there doesn't seem to be any alternative without that
223
   effect.  */
224
#define NOP_OPCODE_COMMON (0x630)
225
#define NOP_OPCODE_ZBITS_COMMON (0xffff & ~NOP_OPCODE_COMMON)
226
 
227
/* LAPC.D  */
228
#define LAPC_DWORD_OPCODE (0x0D7F)
229
#define LAPC_DWORD_Z_BITS (0x0fff & ~LAPC_DWORD_OPCODE)
230
 
231
/* Structure of an opcode table entry.  */
232
enum cris_imm_oprnd_size_type
233
{
234
  /* No size is applicable.  */
235
  SIZE_NONE,
236
 
237
  /* Always 32 bits.  */
238
  SIZE_FIX_32,
239
 
240
  /* Indicated by size of special register.  */
241
  SIZE_SPEC_REG,
242
 
243
  /* Indicated by size field, signed.  */
244
  SIZE_FIELD_SIGNED,
245
 
246
  /* Indicated by size field, unsigned.  */
247
  SIZE_FIELD_UNSIGNED,
248
 
249
  /* Indicated by size field, no sign implied.  */
250
  SIZE_FIELD
251
};
252
 
253
/* For GDB.  FIXME: Is this the best way to handle opcode
254
   interpretation?  */
255
enum cris_op_type
256
{
257
  cris_not_implemented_op = 0,
258
  cris_abs_op,
259
  cris_addi_op,
260
  cris_asr_op,
261
  cris_asrq_op,
262
  cris_ax_ei_setf_op,
263
  cris_bdap_prefix,
264
  cris_biap_prefix,
265
  cris_break_op,
266
  cris_btst_nop_op,
267
  cris_clearf_di_op,
268
  cris_dip_prefix,
269
  cris_dstep_logshift_mstep_neg_not_op,
270
  cris_eight_bit_offset_branch_op,
271
  cris_move_mem_to_reg_movem_op,
272
  cris_move_reg_to_mem_movem_op,
273
  cris_move_to_preg_op,
274
  cris_muls_op,
275
  cris_mulu_op,
276
  cris_none_reg_mode_add_sub_cmp_and_or_move_op,
277
  cris_none_reg_mode_clear_test_op,
278
  cris_none_reg_mode_jump_op,
279
  cris_none_reg_mode_move_from_preg_op,
280
  cris_quick_mode_add_sub_op,
281
  cris_quick_mode_and_cmp_move_or_op,
282
  cris_quick_mode_bdap_prefix,
283
  cris_reg_mode_add_sub_cmp_and_or_move_op,
284
  cris_reg_mode_clear_op,
285
  cris_reg_mode_jump_op,
286
  cris_reg_mode_move_from_preg_op,
287
  cris_reg_mode_test_op,
288
  cris_scc_op,
289
  cris_sixteen_bit_offset_branch_op,
290
  cris_three_operand_add_sub_cmp_and_or_op,
291
  cris_three_operand_bound_op,
292
  cris_two_operand_bound_op,
293
  cris_xor_op
294
};
295
 
296
struct cris_opcode
297
{
298
  /* The name of the insn.  */
299
  const char *name;
300
 
301
  /* Bits that must be 1 for a match.  */
302
  unsigned int match;
303
 
304
  /* Bits that must be 0 for a match.  */
305
  unsigned int lose;
306
 
307
  /* See the table in "opcodes/cris-opc.c".  */
308
  const char *args;
309
 
310
  /* Nonzero if this is a delayed branch instruction.  */
311
  char delayed;
312
 
313
  /* Size of immediate operands.  */
314
  enum cris_imm_oprnd_size_type imm_oprnd_size;
315
 
316
  /* Indicates which version this insn was first implemented in.  */
317
  enum cris_insn_version_usage applicable_version;
318
 
319
  /* What kind of operation this is.  */
320
  enum cris_op_type op;
321
};
322
extern const struct cris_opcode cris_opcodes[];
323
 
324
 
325
/* These macros are for the target-specific flags in disassemble_info
326
   used at disassembly.  */
327
 
328
/* This insn accesses memory.  This flag is more trustworthy than
329
   checking insn_type for "dis_dref" which does not work for
330
   e.g. "JSR [foo]".  */
331
#define CRIS_DIS_FLAG_MEMREF (1 << 0)
332
 
333
/* The "target" field holds a register number.  */
334
#define CRIS_DIS_FLAG_MEM_TARGET_IS_REG (1 << 1)
335
 
336
/* The "target2" field holds a register number; add it to "target".  */
337
#define CRIS_DIS_FLAG_MEM_TARGET2_IS_REG (1 << 2)
338
 
339
/* Yet another add-on: the register in "target2" must be multiplied
340
   by 2 before adding to "target".  */
341
#define CRIS_DIS_FLAG_MEM_TARGET2_MULT2 (1 << 3)
342
 
343
/* Yet another add-on: the register in "target2" must be multiplied
344
   by 4 (mutually exclusive with .._MULT2).  */
345
#define CRIS_DIS_FLAG_MEM_TARGET2_MULT4 (1 << 4)
346
 
347
/* The register in "target2" is an indirect memory reference (of the
348
   register there), add to "target".  Assumed size is dword (mutually
349
   exclusive with .._MULT[24]).  */
350
#define CRIS_DIS_FLAG_MEM_TARGET2_MEM (1 << 5)
351
 
352
/* Add-on to CRIS_DIS_FLAG_MEM_TARGET2_MEM; the memory access is "byte";
353
   sign-extended before adding to "target".  */
354
#define CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE (1 << 6)
355
 
356
/* Add-on to CRIS_DIS_FLAG_MEM_TARGET2_MEM; the memory access is "word";
357
   sign-extended before adding to "target".  */
358
#define CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD (1 << 7)
359
 
360
#endif /* __CRIS_H_INCLUDED_ */
361
 
362
/*
363
 * Local variables:
364
 * eval: (c-set-style "gnu")
365
 * indent-tabs-mode: t
366
 * End:
367
 */

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