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works with less than base ISA qemu-system-riscv32 -M virt -bios none -kernel output...
[qemu.git] / disas / cris.c
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450d4ff5
TS		 1/* Disassembler code for CRIS.
2 Copyright 2000, 2001, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
3 Contributed by Axis Communications AB, Lund, Sweden.
4 Written by Hans-Peter Nilsson.
5
6 This file is part of the GNU binutils and GDB, the GNU debugger.
7
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any later
11 version.
12
13 This program is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 more details.
17
18 You should have received a copy of the GNU General Public License
8167ee88 19 along with this program; if not, see <http://www.gnu.org/licenses/>. */
450d4ff5 20
23b0d7df 21#include "qemu/osdep.h"
3979fca4 22#include "disas/dis-asm.h"
fcf5ef2a 23#include "target/cris/opcode-cris.h"
1eec614b 24
450d4ff5
TS		 25#define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0)
26
27/* cris-opc.c -- Table of opcodes for the CRIS processor.
28 Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
29 Contributed by Axis Communications AB, Lund, Sweden.
30 Originally written for GAS 1.38.1 by Mikael Asker.
31 Reorganized by Hans-Peter Nilsson.
32
33This file is part of GAS, GDB and the GNU binutils.
34
35GAS, GDB, and GNU binutils is free software; you can redistribute it
36and/or modify it under the terms of the GNU General Public License as
37published by the Free Software Foundation; either version 2, or (at your
38option) any later version.
39
40GAS, GDB, and GNU binutils are distributed in the hope that they will be
41useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
42MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
43GNU General Public License for more details.
44
45You should have received a copy of the GNU General Public License
8167ee88 46along with this program; if not, see <http://www.gnu.org/licenses/>. */
450d4ff5
TS		 47
48#ifndef NULL
49#define NULL (0)
50#endif
51
52/* This table isn't used for CRISv32 and the size of immediate operands. */
53const struct cris_spec_reg
54cris_spec_regs[] =
55{
56 {"bz", 0, 1, cris_ver_v32p, NULL},
57 {"p0", 0, 1, 0, NULL},
58 {"vr", 1, 1, 0, NULL},
59 {"p1", 1, 1, 0, NULL},
60 {"pid", 2, 1, cris_ver_v32p, NULL},
61 {"p2", 2, 1, cris_ver_v32p, NULL},
62 {"p2", 2, 1, cris_ver_warning, NULL},
63 {"srs", 3, 1, cris_ver_v32p, NULL},
64 {"p3", 3, 1, cris_ver_v32p, NULL},
65 {"p3", 3, 1, cris_ver_warning, NULL},
66 {"wz", 4, 2, cris_ver_v32p, NULL},
67 {"p4", 4, 2, 0, NULL},
68 {"ccr", 5, 2, cris_ver_v0_10, NULL},
69 {"exs", 5, 4, cris_ver_v32p, NULL},
70 {"p5", 5, 2, cris_ver_v0_10, NULL},
71 {"p5", 5, 4, cris_ver_v32p, NULL},
72 {"dcr0",6, 2, cris_ver_v0_3, NULL},
73 {"eda", 6, 4, cris_ver_v32p, NULL},
74 {"p6", 6, 2, cris_ver_v0_3, NULL},
75 {"p6", 6, 4, cris_ver_v32p, NULL},
76 {"dcr1/mof", 7, 4, cris_ver_v10p,
77 "Register `dcr1/mof' with ambiguous size specified. Guessing 4 bytes"},
78 {"dcr1/mof", 7, 2, cris_ver_v0_3,
79 "Register `dcr1/mof' with ambiguous size specified. Guessing 2 bytes"},
80 {"mof", 7, 4, cris_ver_v10p, NULL},
81 {"dcr1",7, 2, cris_ver_v0_3, NULL},
82 {"p7", 7, 4, cris_ver_v10p, NULL},
83 {"p7", 7, 2, cris_ver_v0_3, NULL},
84 {"dz", 8, 4, cris_ver_v32p, NULL},
85 {"p8", 8, 4, 0, NULL},
86 {"ibr", 9, 4, cris_ver_v0_10, NULL},
87 {"ebp", 9, 4, cris_ver_v32p, NULL},
88 {"p9", 9, 4, 0, NULL},
89 {"irp", 10, 4, cris_ver_v0_10, NULL},
90 {"erp", 10, 4, cris_ver_v32p, NULL},
91 {"p10", 10, 4, 0, NULL},
92 {"srp", 11, 4, 0, NULL},
93 {"p11", 11, 4, 0, NULL},
94 /* For disassembly use only. Accept at assembly with a warning. */
95 {"bar/dtp0", 12, 4, cris_ver_warning,
96 "Ambiguous register `bar/dtp0' specified"},
97 {"nrp", 12, 4, cris_ver_v32p, NULL},
98 {"bar", 12, 4, cris_ver_v8_10, NULL},
99 {"dtp0",12, 4, cris_ver_v0_3, NULL},
100 {"p12", 12, 4, 0, NULL},
101 /* For disassembly use only. Accept at assembly with a warning. */
102 {"dccr/dtp1",13, 4, cris_ver_warning,
103 "Ambiguous register `dccr/dtp1' specified"},
104 {"ccs", 13, 4, cris_ver_v32p, NULL},
105 {"dccr",13, 4, cris_ver_v8_10, NULL},
106 {"dtp1",13, 4, cris_ver_v0_3, NULL},
107 {"p13", 13, 4, 0, NULL},
108 {"brp", 14, 4, cris_ver_v3_10, NULL},
109 {"usp", 14, 4, cris_ver_v32p, NULL},
110 {"p14", 14, 4, cris_ver_v3p, NULL},
111 {"usp", 15, 4, cris_ver_v10, NULL},
112 {"spc", 15, 4, cris_ver_v32p, NULL},
113 {"p15", 15, 4, cris_ver_v10p, NULL},
114 {NULL, 0, 0, cris_ver_version_all, NULL}
115};
116
117/* Add version specifiers to this table when necessary.
118 The (now) regular coding of register names suggests a simpler
119 implementation. */
120const struct cris_support_reg cris_support_regs[] =
121{
122 {"s0", 0},
123 {"s1", 1},
124 {"s2", 2},
125 {"s3", 3},
126 {"s4", 4},
127 {"s5", 5},
128 {"s6", 6},
129 {"s7", 7},
130 {"s8", 8},
131 {"s9", 9},
132 {"s10", 10},
133 {"s11", 11},
134 {"s12", 12},
135 {"s13", 13},
136 {"s14", 14},
137 {"s15", 15},
138 {NULL, 0}
139};
140
141/* All CRIS opcodes are 16 bits.
142
143 - The match component is a mask saying which bits must match a
144 particular opcode in order for an instruction to be an instance
145 of that opcode.
146
147 - The args component is a string containing characters symbolically
148 matching the operands of an instruction. Used for both assembly
149 and disassembly.
150
151 Operand-matching characters:
152 [ ] , space
153 Verbatim.
154 A The string "ACR" (case-insensitive).
155 B Not really an operand. It causes a "BDAP -size,SP" prefix to be
156 output for the PUSH alias-instructions and recognizes a push-
157 prefix at disassembly. This letter isn't recognized for v32.
158 Must be followed by a R or P letter.
159 ! Non-match pattern, will not match if there's a prefix insn.
160 b Non-matching operand, used for branches with 16-bit
161 displacement. Only recognized by the disassembler.
162 c 5-bit unsigned immediate in bits <4:0>.
163 C 4-bit unsigned immediate in bits <3:0>.
164 d At assembly, optionally (as in put other cases before this one)
165 ".d" or ".D" at the start of the operands, followed by one space
166 character. At disassembly, nothing.
167 D General register in bits <15:12> and <3:0>.
168 f List of flags in bits <15:12> and <3:0>.
169 i 6-bit signed immediate in bits <5:0>.
170 I 6-bit unsigned immediate in bits <5:0>.
171 M Size modifier (B, W or D) for CLEAR instructions.
172 m Size modifier (B, W or D) in bits <5:4>
173 N A 32-bit dword, like in the difference between s and y.
174 This has no effect on bits in the opcode. Can also be expressed
175 as "[pc+]" in input.
176 n As N, but PC-relative (to the start of the instruction).
177 o [-128..127] word offset in bits <7:1> and <0>. Used by 8-bit
178 branch instructions.
179 O [-128..127] offset in bits <7:0>. Also matches a comma and a
180 general register after the expression, in bits <15:12>. Used
181 only for the BDAP prefix insn (in v32 the ADDOQ insn; same opcode).
182 P Special register in bits <15:12>.
183 p Indicates that the insn is a prefix insn. Must be first
184 character.
185 Q As O, but don't relax; force an 8-bit offset.
186 R General register in bits <15:12>.
187 r General register in bits <3:0>.
188 S Source operand in bit <10> and a prefix; a 3-operand prefix
189 without side-effect.
190 s Source operand in bits <10> and <3:0>, optionally with a
191 side-effect prefix, except [pc] (the name, not R15 as in ACR)
192 isn't allowed for v32 and higher.
193 T Support register in bits <15:12>.
194 u 4-bit (PC-relative) unsigned immediate word offset in bits <3:0>.
195 U Relaxes to either u or n, instruction is assumed LAPCQ or LAPC.
196 Not recognized at disassembly.
197 x Register-dot-modifier, for example "r5.w" in bits <15:12> and <5:4>.
198 y Like 's' but do not allow an integer at assembly.
199 Y The difference s-y; only an integer is allowed.
200 z Size modifier (B or W) in bit <4>. */
201
202
203/* Please note the order of the opcodes in this table is significant.
204 The assembler requires that all instances of the same mnemonic must
205 be consecutive. If they aren't, the assembler might not recognize
206 them, or may indicate an internal error.
207
208 The disassembler should not normally care about the order of the
209 opcodes, but will prefer an earlier alternative if the "match-score"
210 (see cris-dis.c) is computed as equal.
211
212 It should not be significant for proper execution that this table is
213 in alphabetical order, but please follow that convention for an easy
214 overview. */
215
216const struct cris_opcode
217cris_opcodes[] =
218{
219 {"abs", 0x06B0, 0x0940, "r,R", 0, SIZE_NONE, 0,
220 cris_abs_op},
221
222 {"add", 0x0600, 0x09c0, "m r,R", 0, SIZE_NONE, 0,
223 cris_reg_mode_add_sub_cmp_and_or_move_op},
224
225 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD, 0,
226 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
227
228 {"add", 0x0A00, 0x01c0, "m S,D", 0, SIZE_NONE,
229 cris_ver_v0_10,
230 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
231
232 {"add", 0x0a00, 0x05c0, "m S,R,r", 0, SIZE_NONE,
233 cris_ver_v0_10,
234 cris_three_operand_add_sub_cmp_and_or_op},
235
236 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD,
237 cris_ver_v32p,
238 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
239
240 {"addc", 0x0570, 0x0A80, "r,R", 0, SIZE_FIX_32,
241 cris_ver_v32p,
242 cris_not_implemented_op},
243
244 {"addc", 0x09A0, 0x0250, "s,R", 0, SIZE_FIX_32,
245 cris_ver_v32p,
246 cris_not_implemented_op},
247
248 {"addi", 0x0540, 0x0A80, "x,r,A", 0, SIZE_NONE,
249 cris_ver_v32p,
250 cris_addi_op},
251
252 {"addi", 0x0500, 0x0Ac0, "x,r", 0, SIZE_NONE, 0,
253 cris_addi_op},
254
255 /* This collates after "addo", but we want to disassemble as "addoq",
256 not "addo". */
257 {"addoq", 0x0100, 0x0E00, "Q,A", 0, SIZE_NONE,
258 cris_ver_v32p,
259 cris_not_implemented_op},
260
261 {"addo", 0x0940, 0x0280, "m s,R,A", 0, SIZE_FIELD_SIGNED,
262 cris_ver_v32p,
263 cris_not_implemented_op},
264
265 /* This must be located after the insn above, lest we misinterpret
266 "addo.b -1,r0,acr" as "addo .b-1,r0,acr". FIXME: Sounds like a
267 parser bug. */
268 {"addo", 0x0100, 0x0E00, "O,A", 0, SIZE_NONE,
269 cris_ver_v32p,
270 cris_not_implemented_op},
271
272 {"addq", 0x0200, 0x0Dc0, "I,R", 0, SIZE_NONE, 0,
273 cris_quick_mode_add_sub_op},
274
275 {"adds", 0x0420, 0x0Bc0, "z r,R", 0, SIZE_NONE, 0,
276 cris_reg_mode_add_sub_cmp_and_or_move_op},
277
278 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
279 {"adds", 0x0820, 0x03c0, "z s,R", 0, SIZE_FIELD, 0,
280 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
281
282 {"adds", 0x0820, 0x03c0, "z S,D", 0, SIZE_NONE,
283 cris_ver_v0_10,
284 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
285
286 {"adds", 0x0820, 0x07c0, "z S,R,r", 0, SIZE_NONE,
287 cris_ver_v0_10,
288 cris_three_operand_add_sub_cmp_and_or_op},
289
290 {"addu", 0x0400, 0x0be0, "z r,R", 0, SIZE_NONE, 0,
291 cris_reg_mode_add_sub_cmp_and_or_move_op},
292
293 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
294 {"addu", 0x0800, 0x03e0, "z s,R", 0, SIZE_FIELD, 0,
295 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
296
297 {"addu", 0x0800, 0x03e0, "z S,D", 0, SIZE_NONE,
298 cris_ver_v0_10,
299 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
300
301 {"addu", 0x0800, 0x07e0, "z S,R,r", 0, SIZE_NONE,
302 cris_ver_v0_10,
303 cris_three_operand_add_sub_cmp_and_or_op},
304
305 {"and", 0x0700, 0x08C0, "m r,R", 0, SIZE_NONE, 0,
306 cris_reg_mode_add_sub_cmp_and_or_move_op},
307
308 {"and", 0x0B00, 0x00C0, "m s,R", 0, SIZE_FIELD, 0,
309 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
310
311 {"and", 0x0B00, 0x00C0, "m S,D", 0, SIZE_NONE,
312 cris_ver_v0_10,
313 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
314
315 {"and", 0x0B00, 0x04C0, "m S,R,r", 0, SIZE_NONE,
316 cris_ver_v0_10,
317 cris_three_operand_add_sub_cmp_and_or_op},
318
319 {"andq", 0x0300, 0x0CC0, "i,R", 0, SIZE_NONE, 0,
320 cris_quick_mode_and_cmp_move_or_op},
321
322 {"asr", 0x0780, 0x0840, "m r,R", 0, SIZE_NONE, 0,
323 cris_asr_op},
324
325 {"asrq", 0x03a0, 0x0c40, "c,R", 0, SIZE_NONE, 0,
326 cris_asrq_op},
327
328 {"ax", 0x15B0, 0xEA4F, "", 0, SIZE_NONE, 0,
329 cris_ax_ei_setf_op},
330
331 /* FIXME: Should use branch #defines. */
332 {"b", 0x0dff, 0x0200, "b", 1, SIZE_NONE, 0,
333 cris_sixteen_bit_offset_branch_op},
334
335 {"ba",
336 BA_QUICK_OPCODE,
337 0x0F00+(0xF-CC_A)*0x1000, "o", 1, SIZE_NONE, 0,
338 cris_eight_bit_offset_branch_op},
339
340 /* Needs to come after the usual "ba o", which might be relaxed to
341 this one. */
342 {"ba", BA_DWORD_OPCODE,
343 0xffff & (~BA_DWORD_OPCODE), "n", 0, SIZE_FIX_32,
344 cris_ver_v32p,
345 cris_none_reg_mode_jump_op},
346
347 {"bas", 0x0EBF, 0x0140, "n,P", 0, SIZE_FIX_32,
348 cris_ver_v32p,
349 cris_none_reg_mode_jump_op},
350
351 {"basc", 0x0EFF, 0x0100, "n,P", 0, SIZE_FIX_32,
352 cris_ver_v32p,
353 cris_none_reg_mode_jump_op},
354
355 {"bcc",
356 BRANCH_QUICK_OPCODE+CC_CC*0x1000,
357 0x0f00+(0xF-CC_CC)*0x1000, "o", 1, SIZE_NONE, 0,
358 cris_eight_bit_offset_branch_op},
359
360 {"bcs",
361 BRANCH_QUICK_OPCODE+CC_CS*0x1000,
362 0x0f00+(0xF-CC_CS)*0x1000, "o", 1, SIZE_NONE, 0,
363 cris_eight_bit_offset_branch_op},
364
365 {"bdap",
366 BDAP_INDIR_OPCODE, BDAP_INDIR_Z_BITS, "pm s,R", 0, SIZE_FIELD_SIGNED,
367 cris_ver_v0_10,
368 cris_bdap_prefix},
369
370 {"bdap",
371 BDAP_QUICK_OPCODE, BDAP_QUICK_Z_BITS, "pO", 0, SIZE_NONE,
372 cris_ver_v0_10,
373 cris_quick_mode_bdap_prefix},
374
375 {"beq",
376 BRANCH_QUICK_OPCODE+CC_EQ*0x1000,
377 0x0f00+(0xF-CC_EQ)*0x1000, "o", 1, SIZE_NONE, 0,
378 cris_eight_bit_offset_branch_op},
379
380 /* This is deliberately put before "bext" to trump it, even though not
381 in alphabetical order, since we don't do excluding version checks
382 for v0..v10. */
383 {"bwf",
384 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
385 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
386 cris_ver_v10,
387 cris_eight_bit_offset_branch_op},
388
389 {"bext",
390 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
391 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
392 cris_ver_v0_3,
393 cris_eight_bit_offset_branch_op},
394
395 {"bge",
396 BRANCH_QUICK_OPCODE+CC_GE*0x1000,
397 0x0f00+(0xF-CC_GE)*0x1000, "o", 1, SIZE_NONE, 0,
398 cris_eight_bit_offset_branch_op},
399
400 {"bgt",
401 BRANCH_QUICK_OPCODE+CC_GT*0x1000,
402 0x0f00+(0xF-CC_GT)*0x1000, "o", 1, SIZE_NONE, 0,
403 cris_eight_bit_offset_branch_op},
404
405 {"bhi",
406 BRANCH_QUICK_OPCODE+CC_HI*0x1000,
407 0x0f00+(0xF-CC_HI)*0x1000, "o", 1, SIZE_NONE, 0,
408 cris_eight_bit_offset_branch_op},
409
410 {"bhs",
411 BRANCH_QUICK_OPCODE+CC_HS*0x1000,
412 0x0f00+(0xF-CC_HS)*0x1000, "o", 1, SIZE_NONE, 0,
413 cris_eight_bit_offset_branch_op},
414
415 {"biap", BIAP_OPCODE, BIAP_Z_BITS, "pm r,R", 0, SIZE_NONE,
416 cris_ver_v0_10,
417 cris_biap_prefix},
418
419 {"ble",
420 BRANCH_QUICK_OPCODE+CC_LE*0x1000,
421 0x0f00+(0xF-CC_LE)*0x1000, "o", 1, SIZE_NONE, 0,
422 cris_eight_bit_offset_branch_op},
423
424 {"blo",
425 BRANCH_QUICK_OPCODE+CC_LO*0x1000,
426 0x0f00+(0xF-CC_LO)*0x1000, "o", 1, SIZE_NONE, 0,
427 cris_eight_bit_offset_branch_op},
428
429 {"bls",
430 BRANCH_QUICK_OPCODE+CC_LS*0x1000,
431 0x0f00+(0xF-CC_LS)*0x1000, "o", 1, SIZE_NONE, 0,
432 cris_eight_bit_offset_branch_op},
433
434 {"blt",
435 BRANCH_QUICK_OPCODE+CC_LT*0x1000,
436 0x0f00+(0xF-CC_LT)*0x1000, "o", 1, SIZE_NONE, 0,
437 cris_eight_bit_offset_branch_op},
438
439 {"bmi",
440 BRANCH_QUICK_OPCODE+CC_MI*0x1000,
441 0x0f00+(0xF-CC_MI)*0x1000, "o", 1, SIZE_NONE, 0,
442 cris_eight_bit_offset_branch_op},
443
444 {"bmod", 0x0ab0, 0x0140, "s,R", 0, SIZE_FIX_32,
445 cris_ver_sim_v0_10,
446 cris_not_implemented_op},
447
448 {"bmod", 0x0ab0, 0x0140, "S,D", 0, SIZE_NONE,
449 cris_ver_sim_v0_10,
450 cris_not_implemented_op},
451
452 {"bmod", 0x0ab0, 0x0540, "S,R,r", 0, SIZE_NONE,
453 cris_ver_sim_v0_10,
454 cris_not_implemented_op},
455
456 {"bne",
457 BRANCH_QUICK_OPCODE+CC_NE*0x1000,
458 0x0f00+(0xF-CC_NE)*0x1000, "o", 1, SIZE_NONE, 0,
459 cris_eight_bit_offset_branch_op},
460
461 {"bound", 0x05c0, 0x0A00, "m r,R", 0, SIZE_NONE, 0,
462 cris_two_operand_bound_op},
463 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
464 {"bound", 0x09c0, 0x0200, "m s,R", 0, SIZE_FIELD,
465 cris_ver_v0_10,
466 cris_two_operand_bound_op},
467 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
468 {"bound", 0x0dcf, 0x0200, "m Y,R", 0, SIZE_FIELD, 0,
469 cris_two_operand_bound_op},
470 {"bound", 0x09c0, 0x0200, "m S,D", 0, SIZE_NONE,
471 cris_ver_v0_10,
472 cris_two_operand_bound_op},
473 {"bound", 0x09c0, 0x0600, "m S,R,r", 0, SIZE_NONE,
474 cris_ver_v0_10,
475 cris_three_operand_bound_op},
476
477 {"bpl",
478 BRANCH_QUICK_OPCODE+CC_PL*0x1000,
479 0x0f00+(0xF-CC_PL)*0x1000, "o", 1, SIZE_NONE, 0,
480 cris_eight_bit_offset_branch_op},
481
482 {"break", 0xe930, 0x16c0, "C", 0, SIZE_NONE,
483 cris_ver_v3p,
484 cris_break_op},
485
486 {"bsb",
487 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
488 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
489 cris_ver_v32p,
490 cris_eight_bit_offset_branch_op},
491
492 {"bsr", 0xBEBF, 0x4140, "n", 0, SIZE_FIX_32,
493 cris_ver_v32p,
494 cris_none_reg_mode_jump_op},
495
496 {"bsrc", 0xBEFF, 0x4100, "n", 0, SIZE_FIX_32,
497 cris_ver_v32p,
498 cris_none_reg_mode_jump_op},
499
500 {"bstore", 0x0af0, 0x0100, "s,R", 0, SIZE_FIX_32,
501 cris_ver_warning,
502 cris_not_implemented_op},
503
504 {"bstore", 0x0af0, 0x0100, "S,D", 0, SIZE_NONE,
505 cris_ver_warning,
506 cris_not_implemented_op},
507
508 {"bstore", 0x0af0, 0x0500, "S,R,r", 0, SIZE_NONE,
509 cris_ver_warning,
510 cris_not_implemented_op},
511
512 {"btst", 0x04F0, 0x0B00, "r,R", 0, SIZE_NONE, 0,
513 cris_btst_nop_op},
514 {"btstq", 0x0380, 0x0C60, "c,R", 0, SIZE_NONE, 0,
515 cris_btst_nop_op},
516
517 {"bvc",
518 BRANCH_QUICK_OPCODE+CC_VC*0x1000,
519 0x0f00+(0xF-CC_VC)*0x1000, "o", 1, SIZE_NONE, 0,
520 cris_eight_bit_offset_branch_op},
521
522 {"bvs",
523 BRANCH_QUICK_OPCODE+CC_VS*0x1000,
524 0x0f00+(0xF-CC_VS)*0x1000, "o", 1, SIZE_NONE, 0,
525 cris_eight_bit_offset_branch_op},
526
527 {"clear", 0x0670, 0x3980, "M r", 0, SIZE_NONE, 0,
528 cris_reg_mode_clear_op},
529
530 {"clear", 0x0A70, 0x3180, "M y", 0, SIZE_NONE, 0,
531 cris_none_reg_mode_clear_test_op},
532
533 {"clear", 0x0A70, 0x3180, "M S", 0, SIZE_NONE,
534 cris_ver_v0_10,
535 cris_none_reg_mode_clear_test_op},
536
537 {"clearf", 0x05F0, 0x0A00, "f", 0, SIZE_NONE, 0,
538 cris_clearf_di_op},
539
540 {"cmp", 0x06C0, 0x0900, "m r,R", 0, SIZE_NONE, 0,
541 cris_reg_mode_add_sub_cmp_and_or_move_op},
542
543 {"cmp", 0x0Ac0, 0x0100, "m s,R", 0, SIZE_FIELD, 0,
544 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
545
546 {"cmp", 0x0Ac0, 0x0100, "m S,D", 0, SIZE_NONE,
547 cris_ver_v0_10,
548 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
549
550 {"cmpq", 0x02C0, 0x0D00, "i,R", 0, SIZE_NONE, 0,
551 cris_quick_mode_and_cmp_move_or_op},
552
553 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
554 {"cmps", 0x08e0, 0x0300, "z s,R", 0, SIZE_FIELD, 0,
555 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
556
557 {"cmps", 0x08e0, 0x0300, "z S,D", 0, SIZE_NONE,
558 cris_ver_v0_10,
559 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
560
561 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
562 {"cmpu", 0x08c0, 0x0320, "z s,R" , 0, SIZE_FIELD, 0,
563 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
564
565 {"cmpu", 0x08c0, 0x0320, "z S,D", 0, SIZE_NONE,
566 cris_ver_v0_10,
567 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
568
569 {"di", 0x25F0, 0xDA0F, "", 0, SIZE_NONE, 0,
570 cris_clearf_di_op},
571
572 {"dip", DIP_OPCODE, DIP_Z_BITS, "ps", 0, SIZE_FIX_32,
573 cris_ver_v0_10,
574 cris_dip_prefix},
575
576 {"div", 0x0980, 0x0640, "m R,r", 0, SIZE_FIELD, 0,
577 cris_not_implemented_op},
578
579 {"dstep", 0x06f0, 0x0900, "r,R", 0, SIZE_NONE, 0,
580 cris_dstep_logshift_mstep_neg_not_op},
581
582 {"ei", 0x25B0, 0xDA4F, "", 0, SIZE_NONE, 0,
583 cris_ax_ei_setf_op},
584
585 {"fidxd", 0x0ab0, 0xf540, "[r]", 0, SIZE_NONE,
586 cris_ver_v32p,
587 cris_not_implemented_op},
588
589 {"fidxi", 0x0d30, 0xF2C0, "[r]", 0, SIZE_NONE,
590 cris_ver_v32p,
591 cris_not_implemented_op},
592
593 {"ftagd", 0x1AB0, 0xE540, "[r]", 0, SIZE_NONE,
594 cris_ver_v32p,
595 cris_not_implemented_op},
596
597 {"ftagi", 0x1D30, 0xE2C0, "[r]", 0, SIZE_NONE,
598 cris_ver_v32p,
599 cris_not_implemented_op},
600
601 {"halt", 0xF930, 0x06CF, "", 0, SIZE_NONE,
602 cris_ver_v32p,
603 cris_not_implemented_op},
604
605 {"jas", 0x09B0, 0x0640, "r,P", 0, SIZE_NONE,
606 cris_ver_v32p,
607 cris_reg_mode_jump_op},
608
609 {"jas", 0x0DBF, 0x0240, "N,P", 0, SIZE_FIX_32,
610 cris_ver_v32p,
611 cris_reg_mode_jump_op},
612
613 {"jasc", 0x0B30, 0x04C0, "r,P", 0, SIZE_NONE,
614 cris_ver_v32p,
615 cris_reg_mode_jump_op},
616
617 {"jasc", 0x0F3F, 0x00C0, "N,P", 0, SIZE_FIX_32,
618 cris_ver_v32p,
619 cris_reg_mode_jump_op},
620
621 {"jbrc", 0x69b0, 0x9640, "r", 0, SIZE_NONE,
622 cris_ver_v8_10,
623 cris_reg_mode_jump_op},
624
625 {"jbrc", 0x6930, 0x92c0, "s", 0, SIZE_FIX_32,
626 cris_ver_v8_10,
627 cris_none_reg_mode_jump_op},
628
629 {"jbrc", 0x6930, 0x92c0, "S", 0, SIZE_NONE,
630 cris_ver_v8_10,
631 cris_none_reg_mode_jump_op},
632
633 {"jir", 0xA9b0, 0x5640, "r", 0, SIZE_NONE,
634 cris_ver_v8_10,
635 cris_reg_mode_jump_op},
636
637 {"jir", 0xA930, 0x52c0, "s", 0, SIZE_FIX_32,
638 cris_ver_v8_10,
639 cris_none_reg_mode_jump_op},
640
641 {"jir", 0xA930, 0x52c0, "S", 0, SIZE_NONE,
642 cris_ver_v8_10,
643 cris_none_reg_mode_jump_op},
644
645 {"jirc", 0x29b0, 0xd640, "r", 0, SIZE_NONE,
646 cris_ver_v8_10,
647 cris_reg_mode_jump_op},
648
649 {"jirc", 0x2930, 0xd2c0, "s", 0, SIZE_FIX_32,
650 cris_ver_v8_10,
651 cris_none_reg_mode_jump_op},
652
653 {"jirc", 0x2930, 0xd2c0, "S", 0, SIZE_NONE,
654 cris_ver_v8_10,
655 cris_none_reg_mode_jump_op},
656
657 {"jsr", 0xB9b0, 0x4640, "r", 0, SIZE_NONE, 0,
658 cris_reg_mode_jump_op},
659
660 {"jsr", 0xB930, 0x42c0, "s", 0, SIZE_FIX_32,
661 cris_ver_v0_10,
662 cris_none_reg_mode_jump_op},
663
664 {"jsr", 0xBDBF, 0x4240, "N", 0, SIZE_FIX_32,
665 cris_ver_v32p,
666 cris_none_reg_mode_jump_op},
667
668 {"jsr", 0xB930, 0x42c0, "S", 0, SIZE_NONE,
669 cris_ver_v0_10,
670 cris_none_reg_mode_jump_op},
671
672 {"jsrc", 0x39b0, 0xc640, "r", 0, SIZE_NONE,
673 cris_ver_v8_10,
674 cris_reg_mode_jump_op},
675
676 {"jsrc", 0x3930, 0xc2c0, "s", 0, SIZE_FIX_32,
677 cris_ver_v8_10,
678 cris_none_reg_mode_jump_op},
679
680 {"jsrc", 0x3930, 0xc2c0, "S", 0, SIZE_NONE,
681 cris_ver_v8_10,
682 cris_none_reg_mode_jump_op},
683
684 {"jsrc", 0xBB30, 0x44C0, "r", 0, SIZE_NONE,
685 cris_ver_v32p,
686 cris_reg_mode_jump_op},
687
688 {"jsrc", 0xBF3F, 0x40C0, "N", 0, SIZE_FIX_32,
689 cris_ver_v32p,
690 cris_reg_mode_jump_op},
691
692 {"jump", 0x09b0, 0xF640, "r", 0, SIZE_NONE, 0,
693 cris_reg_mode_jump_op},
694
695 {"jump",
696 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "s", 0, SIZE_FIX_32,
697 cris_ver_v0_10,
698 cris_none_reg_mode_jump_op},
699
700 {"jump",
701 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "S", 0, SIZE_NONE,
702 cris_ver_v0_10,
703 cris_none_reg_mode_jump_op},
704
705 {"jump", 0x09F0, 0x060F, "P", 0, SIZE_NONE,
706 cris_ver_v32p,
707 cris_none_reg_mode_jump_op},
708
709 {"jump",
710 JUMP_PC_INCR_OPCODE_V32,
711 (0xffff & ~JUMP_PC_INCR_OPCODE_V32), "N", 0, SIZE_FIX_32,
712 cris_ver_v32p,
713 cris_none_reg_mode_jump_op},
714
715 {"jmpu", 0x8930, 0x72c0, "s", 0, SIZE_FIX_32,
716 cris_ver_v10,
717 cris_none_reg_mode_jump_op},
718
719 {"jmpu", 0x8930, 0x72c0, "S", 0, SIZE_NONE,
720 cris_ver_v10,
721 cris_none_reg_mode_jump_op},
722
723 {"lapc", 0x0970, 0x0680, "U,R", 0, SIZE_NONE,
724 cris_ver_v32p,
725 cris_not_implemented_op},
726
727 {"lapc", 0x0D7F, 0x0280, "dn,R", 0, SIZE_FIX_32,
728 cris_ver_v32p,
729 cris_not_implemented_op},
730
731 {"lapcq", 0x0970, 0x0680, "u,R", 0, SIZE_NONE,
732 cris_ver_v32p,
733 cris_addi_op},
734
735 {"lsl", 0x04C0, 0x0B00, "m r,R", 0, SIZE_NONE, 0,
736 cris_dstep_logshift_mstep_neg_not_op},
737
738 {"lslq", 0x03c0, 0x0C20, "c,R", 0, SIZE_NONE, 0,
739 cris_dstep_logshift_mstep_neg_not_op},
740
741 {"lsr", 0x07C0, 0x0800, "m r,R", 0, SIZE_NONE, 0,
742 cris_dstep_logshift_mstep_neg_not_op},
743
744 {"lsrq", 0x03e0, 0x0C00, "c,R", 0, SIZE_NONE, 0,
745 cris_dstep_logshift_mstep_neg_not_op},
746
747 {"lz", 0x0730, 0x08C0, "r,R", 0, SIZE_NONE,
748 cris_ver_v3p,
749 cris_not_implemented_op},
750
751 {"mcp", 0x07f0, 0x0800, "P,r", 0, SIZE_NONE,
752 cris_ver_v32p,
753 cris_not_implemented_op},
754
755 {"move", 0x0640, 0x0980, "m r,R", 0, SIZE_NONE, 0,
756 cris_reg_mode_add_sub_cmp_and_or_move_op},
757
758 {"move", 0x0A40, 0x0180, "m s,R", 0, SIZE_FIELD, 0,
759 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
760
761 {"move", 0x0A40, 0x0180, "m S,D", 0, SIZE_NONE,
762 cris_ver_v0_10,
763 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
764
765 {"move", 0x0630, 0x09c0, "r,P", 0, SIZE_NONE, 0,
766 cris_move_to_preg_op},
767
768 {"move", 0x0670, 0x0980, "P,r", 0, SIZE_NONE, 0,
769 cris_reg_mode_move_from_preg_op},
770
771 {"move", 0x0BC0, 0x0000, "m R,y", 0, SIZE_FIELD, 0,
772 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
773
774 {"move", 0x0BC0, 0x0000, "m D,S", 0, SIZE_NONE,
775 cris_ver_v0_10,
776 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
777
778 {"move",
779 MOVE_M_TO_PREG_OPCODE, MOVE_M_TO_PREG_ZBITS,
780 "s,P", 0, SIZE_SPEC_REG, 0,
781 cris_move_to_preg_op},
782
783 {"move", 0x0A30, 0x01c0, "S,P", 0, SIZE_NONE,
784 cris_ver_v0_10,
785 cris_move_to_preg_op},
786
787 {"move", 0x0A70, 0x0180, "P,y", 0, SIZE_SPEC_REG, 0,
788 cris_none_reg_mode_move_from_preg_op},
789
790 {"move", 0x0A70, 0x0180, "P,S", 0, SIZE_NONE,
791 cris_ver_v0_10,
792 cris_none_reg_mode_move_from_preg_op},
793
794 {"move", 0x0B70, 0x0480, "r,T", 0, SIZE_NONE,
795 cris_ver_v32p,
796 cris_not_implemented_op},
797
798 {"move", 0x0F70, 0x0080, "T,r", 0, SIZE_NONE,
799 cris_ver_v32p,
800 cris_not_implemented_op},
801
802 {"movem", 0x0BF0, 0x0000, "R,y", 0, SIZE_FIX_32, 0,
803 cris_move_reg_to_mem_movem_op},
804
805 {"movem", 0x0BF0, 0x0000, "D,S", 0, SIZE_NONE,
806 cris_ver_v0_10,
807 cris_move_reg_to_mem_movem_op},
808
809 {"movem", 0x0BB0, 0x0040, "s,R", 0, SIZE_FIX_32, 0,
810 cris_move_mem_to_reg_movem_op},
811
812 {"movem", 0x0BB0, 0x0040, "S,D", 0, SIZE_NONE,
813 cris_ver_v0_10,
814 cris_move_mem_to_reg_movem_op},
815
816 {"moveq", 0x0240, 0x0D80, "i,R", 0, SIZE_NONE, 0,
817 cris_quick_mode_and_cmp_move_or_op},
818
819 {"movs", 0x0460, 0x0B80, "z r,R", 0, SIZE_NONE, 0,
820 cris_reg_mode_add_sub_cmp_and_or_move_op},
821
822 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
823 {"movs", 0x0860, 0x0380, "z s,R", 0, SIZE_FIELD, 0,
824 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
825
826 {"movs", 0x0860, 0x0380, "z S,D", 0, SIZE_NONE,
827 cris_ver_v0_10,
828 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
829
830 {"movu", 0x0440, 0x0Ba0, "z r,R", 0, SIZE_NONE, 0,
831 cris_reg_mode_add_sub_cmp_and_or_move_op},
832
833 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
834 {"movu", 0x0840, 0x03a0, "z s,R", 0, SIZE_FIELD, 0,
835 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
836
837 {"movu", 0x0840, 0x03a0, "z S,D", 0, SIZE_NONE,
838 cris_ver_v0_10,
839 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
840
841 {"mstep", 0x07f0, 0x0800, "r,R", 0, SIZE_NONE,
842 cris_ver_v0_10,
843 cris_dstep_logshift_mstep_neg_not_op},
844
845 {"muls", 0x0d00, 0x02c0, "m r,R", 0, SIZE_NONE,
846 cris_ver_v10p,
847 cris_muls_op},
848
849 {"mulu", 0x0900, 0x06c0, "m r,R", 0, SIZE_NONE,
850 cris_ver_v10p,
851 cris_mulu_op},
852
853 {"neg", 0x0580, 0x0A40, "m r,R", 0, SIZE_NONE, 0,
854 cris_dstep_logshift_mstep_neg_not_op},
855
856 {"nop", NOP_OPCODE, NOP_Z_BITS, "", 0, SIZE_NONE,
857 cris_ver_v0_10,
858 cris_btst_nop_op},
859
860 {"nop", NOP_OPCODE_V32, NOP_Z_BITS_V32, "", 0, SIZE_NONE,
861 cris_ver_v32p,
862 cris_btst_nop_op},
863
864 {"not", 0x8770, 0x7880, "r", 0, SIZE_NONE, 0,
865 cris_dstep_logshift_mstep_neg_not_op},
866
867 {"or", 0x0740, 0x0880, "m r,R", 0, SIZE_NONE, 0,
868 cris_reg_mode_add_sub_cmp_and_or_move_op},
869
870 {"or", 0x0B40, 0x0080, "m s,R", 0, SIZE_FIELD, 0,
871 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
872
873 {"or", 0x0B40, 0x0080, "m S,D", 0, SIZE_NONE,
874 cris_ver_v0_10,
875 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
876
877 {"or", 0x0B40, 0x0480, "m S,R,r", 0, SIZE_NONE,
878 cris_ver_v0_10,
879 cris_three_operand_add_sub_cmp_and_or_op},
880
881 {"orq", 0x0340, 0x0C80, "i,R", 0, SIZE_NONE, 0,
882 cris_quick_mode_and_cmp_move_or_op},
883
884 {"pop", 0x0E6E, 0x0191, "!R", 0, SIZE_NONE,
885 cris_ver_v0_10,
886 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
887
888 {"pop", 0x0e3e, 0x01c1, "!P", 0, SIZE_NONE,
889 cris_ver_v0_10,
890 cris_none_reg_mode_move_from_preg_op},
891
892 {"push", 0x0FEE, 0x0011, "BR", 0, SIZE_NONE,
893 cris_ver_v0_10,
894 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
895
896 {"push", 0x0E7E, 0x0181, "BP", 0, SIZE_NONE,
897 cris_ver_v0_10,
898 cris_move_to_preg_op},
899
900 {"rbf", 0x3b30, 0xc0c0, "y", 0, SIZE_NONE,
901 cris_ver_v10,
902 cris_not_implemented_op},
903
904 {"rbf", 0x3b30, 0xc0c0, "S", 0, SIZE_NONE,
905 cris_ver_v10,
906 cris_not_implemented_op},
907
908 {"rfe", 0x2930, 0xD6CF, "", 0, SIZE_NONE,
909 cris_ver_v32p,
910 cris_not_implemented_op},
911
912 {"rfg", 0x4930, 0xB6CF, "", 0, SIZE_NONE,
913 cris_ver_v32p,
914 cris_not_implemented_op},
915
916 {"rfn", 0x5930, 0xA6CF, "", 0, SIZE_NONE,
917 cris_ver_v32p,
918 cris_not_implemented_op},
919
920 {"ret", 0xB67F, 0x4980, "", 1, SIZE_NONE,
921 cris_ver_v0_10,
922 cris_reg_mode_move_from_preg_op},
923
924 {"ret", 0xB9F0, 0x460F, "", 1, SIZE_NONE,
925 cris_ver_v32p,
926 cris_reg_mode_move_from_preg_op},
927
928 {"retb", 0xe67f, 0x1980, "", 1, SIZE_NONE,
929 cris_ver_v0_10,
930 cris_reg_mode_move_from_preg_op},
931
932 {"rete", 0xA9F0, 0x560F, "", 1, SIZE_NONE,
933 cris_ver_v32p,
934 cris_reg_mode_move_from_preg_op},
935
936 {"reti", 0xA67F, 0x5980, "", 1, SIZE_NONE,
937 cris_ver_v0_10,
938 cris_reg_mode_move_from_preg_op},
939
940 {"retn", 0xC9F0, 0x360F, "", 1, SIZE_NONE,
941 cris_ver_v32p,
942 cris_reg_mode_move_from_preg_op},
943
944 {"sbfs", 0x3b70, 0xc080, "y", 0, SIZE_NONE,
945 cris_ver_v10,
946 cris_not_implemented_op},
947
948 {"sbfs", 0x3b70, 0xc080, "S", 0, SIZE_NONE,
949 cris_ver_v10,
950 cris_not_implemented_op},
951
952 {"sa",
953 0x0530+CC_A*0x1000,
954 0x0AC0+(0xf-CC_A)*0x1000, "r", 0, SIZE_NONE, 0,
955 cris_scc_op},
956
957 {"ssb",
958 0x0530+CC_EXT*0x1000,
959 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
960 cris_ver_v32p,
961 cris_scc_op},
962
963 {"scc",
964 0x0530+CC_CC*0x1000,
965 0x0AC0+(0xf-CC_CC)*0x1000, "r", 0, SIZE_NONE, 0,
966 cris_scc_op},
967
968 {"scs",
969 0x0530+CC_CS*0x1000,
970 0x0AC0+(0xf-CC_CS)*0x1000, "r", 0, SIZE_NONE, 0,
971 cris_scc_op},
972
973 {"seq",
974 0x0530+CC_EQ*0x1000,
975 0x0AC0+(0xf-CC_EQ)*0x1000, "r", 0, SIZE_NONE, 0,
976 cris_scc_op},
977
978 {"setf", 0x05b0, 0x0A40, "f", 0, SIZE_NONE, 0,
979 cris_ax_ei_setf_op},
980
981 {"sfe", 0x3930, 0xC6CF, "", 0, SIZE_NONE,
982 cris_ver_v32p,
983 cris_not_implemented_op},
984
985 /* Need to have "swf" in front of "sext" so it is the one displayed in
986 disassembly. */
987 {"swf",
988 0x0530+CC_EXT*0x1000,
989 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
990 cris_ver_v10,
991 cris_scc_op},
992
993 {"sext",
994 0x0530+CC_EXT*0x1000,
995 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
996 cris_ver_v0_3,
997 cris_scc_op},
998
999 {"sge",
1000 0x0530+CC_GE*0x1000,
1001 0x0AC0+(0xf-CC_GE)*0x1000, "r", 0, SIZE_NONE, 0,
1002 cris_scc_op},
1003
1004 {"sgt",
1005 0x0530+CC_GT*0x1000,
1006 0x0AC0+(0xf-CC_GT)*0x1000, "r", 0, SIZE_NONE, 0,
1007 cris_scc_op},
1008
1009 {"shi",
1010 0x0530+CC_HI*0x1000,
1011 0x0AC0+(0xf-CC_HI)*0x1000, "r", 0, SIZE_NONE, 0,
1012 cris_scc_op},
1013
1014 {"shs",
1015 0x0530+CC_HS*0x1000,
1016 0x0AC0+(0xf-CC_HS)*0x1000, "r", 0, SIZE_NONE, 0,
1017 cris_scc_op},
1018
1019 {"sle",
1020 0x0530+CC_LE*0x1000,
1021 0x0AC0+(0xf-CC_LE)*0x1000, "r", 0, SIZE_NONE, 0,
1022 cris_scc_op},
1023
1024 {"slo",
1025 0x0530+CC_LO*0x1000,
1026 0x0AC0+(0xf-CC_LO)*0x1000, "r", 0, SIZE_NONE, 0,
1027 cris_scc_op},
1028
1029 {"sls",
1030 0x0530+CC_LS*0x1000,
1031 0x0AC0+(0xf-CC_LS)*0x1000, "r", 0, SIZE_NONE, 0,
1032 cris_scc_op},
1033
1034 {"slt",
1035 0x0530+CC_LT*0x1000,
1036 0x0AC0+(0xf-CC_LT)*0x1000, "r", 0, SIZE_NONE, 0,
1037 cris_scc_op},
1038
1039 {"smi",
1040 0x0530+CC_MI*0x1000,
1041 0x0AC0+(0xf-CC_MI)*0x1000, "r", 0, SIZE_NONE, 0,
1042 cris_scc_op},
1043
1044 {"sne",
1045 0x0530+CC_NE*0x1000,
1046 0x0AC0+(0xf-CC_NE)*0x1000, "r", 0, SIZE_NONE, 0,
1047 cris_scc_op},
1048
1049 {"spl",
1050 0x0530+CC_PL*0x1000,
1051 0x0AC0+(0xf-CC_PL)*0x1000, "r", 0, SIZE_NONE, 0,
1052 cris_scc_op},
1053
1054 {"sub", 0x0680, 0x0940, "m r,R", 0, SIZE_NONE, 0,
1055 cris_reg_mode_add_sub_cmp_and_or_move_op},
1056
1057 {"sub", 0x0a80, 0x0140, "m s,R", 0, SIZE_FIELD, 0,
1058 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1059
1060 {"sub", 0x0a80, 0x0140, "m S,D", 0, SIZE_NONE,
1061 cris_ver_v0_10,
1062 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1063
1064 {"sub", 0x0a80, 0x0540, "m S,R,r", 0, SIZE_NONE,
1065 cris_ver_v0_10,
1066 cris_three_operand_add_sub_cmp_and_or_op},
1067
1068 {"subq", 0x0280, 0x0d40, "I,R", 0, SIZE_NONE, 0,
1069 cris_quick_mode_add_sub_op},
1070
1071 {"subs", 0x04a0, 0x0b40, "z r,R", 0, SIZE_NONE, 0,
1072 cris_reg_mode_add_sub_cmp_and_or_move_op},
1073
1074 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
1075 {"subs", 0x08a0, 0x0340, "z s,R", 0, SIZE_FIELD, 0,
1076 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1077
1078 {"subs", 0x08a0, 0x0340, "z S,D", 0, SIZE_NONE,
1079 cris_ver_v0_10,
1080 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1081
1082 {"subs", 0x08a0, 0x0740, "z S,R,r", 0, SIZE_NONE,
1083 cris_ver_v0_10,
1084 cris_three_operand_add_sub_cmp_and_or_op},
1085
1086 {"subu", 0x0480, 0x0b60, "z r,R", 0, SIZE_NONE, 0,
1087 cris_reg_mode_add_sub_cmp_and_or_move_op},
1088
1089 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
1090 {"subu", 0x0880, 0x0360, "z s,R", 0, SIZE_FIELD, 0,
1091 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1092
1093 {"subu", 0x0880, 0x0360, "z S,D", 0, SIZE_NONE,
1094 cris_ver_v0_10,
1095 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1096
1097 {"subu", 0x0880, 0x0760, "z S,R,r", 0, SIZE_NONE,
1098 cris_ver_v0_10,
1099 cris_three_operand_add_sub_cmp_and_or_op},
1100
1101 {"svc",
1102 0x0530+CC_VC*0x1000,
1103 0x0AC0+(0xf-CC_VC)*0x1000, "r", 0, SIZE_NONE, 0,
1104 cris_scc_op},
1105
1106 {"svs",
1107 0x0530+CC_VS*0x1000,
1108 0x0AC0+(0xf-CC_VS)*0x1000, "r", 0, SIZE_NONE, 0,
1109 cris_scc_op},
1110
1111 /* The insn "swapn" is the same as "not" and will be disassembled as
1112 such, but the swap* family of mnmonics are generally v8-and-higher
1113 only, so count it in. */
1114 {"swapn", 0x8770, 0x7880, "r", 0, SIZE_NONE,
1115 cris_ver_v8p,
1116 cris_not_implemented_op},
1117
1118 {"swapw", 0x4770, 0xb880, "r", 0, SIZE_NONE,
1119 cris_ver_v8p,
1120 cris_not_implemented_op},
1121
1122 {"swapnw", 0xc770, 0x3880, "r", 0, SIZE_NONE,
1123 cris_ver_v8p,
1124 cris_not_implemented_op},
1125
1126 {"swapb", 0x2770, 0xd880, "r", 0, SIZE_NONE,
1127 cris_ver_v8p,
1128 cris_not_implemented_op},
1129
1130 {"swapnb", 0xA770, 0x5880, "r", 0, SIZE_NONE,
1131 cris_ver_v8p,
1132 cris_not_implemented_op},
1133
1134 {"swapwb", 0x6770, 0x9880, "r", 0, SIZE_NONE,
1135 cris_ver_v8p,
1136 cris_not_implemented_op},
1137
1138 {"swapnwb", 0xE770, 0x1880, "r", 0, SIZE_NONE,
1139 cris_ver_v8p,
1140 cris_not_implemented_op},
1141
1142 {"swapr", 0x1770, 0xe880, "r", 0, SIZE_NONE,
1143 cris_ver_v8p,
1144 cris_not_implemented_op},
1145
1146 {"swapnr", 0x9770, 0x6880, "r", 0, SIZE_NONE,
1147 cris_ver_v8p,
1148 cris_not_implemented_op},
1149
1150 {"swapwr", 0x5770, 0xa880, "r", 0, SIZE_NONE,
1151 cris_ver_v8p,
1152 cris_not_implemented_op},
1153
1154 {"swapnwr", 0xd770, 0x2880, "r", 0, SIZE_NONE,
1155 cris_ver_v8p,
1156 cris_not_implemented_op},
1157
1158 {"swapbr", 0x3770, 0xc880, "r", 0, SIZE_NONE,
1159 cris_ver_v8p,
1160 cris_not_implemented_op},
1161
1162 {"swapnbr", 0xb770, 0x4880, "r", 0, SIZE_NONE,
1163 cris_ver_v8p,
1164 cris_not_implemented_op},
1165
1166 {"swapwbr", 0x7770, 0x8880, "r", 0, SIZE_NONE,
1167 cris_ver_v8p,
1168 cris_not_implemented_op},
1169
1170 {"swapnwbr", 0xf770, 0x0880, "r", 0, SIZE_NONE,
1171 cris_ver_v8p,
1172 cris_not_implemented_op},
1173
1174 {"test", 0x0640, 0x0980, "m D", 0, SIZE_NONE,
1175 cris_ver_v0_10,
1176 cris_reg_mode_test_op},
1177
1178 {"test", 0x0b80, 0xf040, "m y", 0, SIZE_FIELD, 0,
1179 cris_none_reg_mode_clear_test_op},
1180
1181 {"test", 0x0b80, 0xf040, "m S", 0, SIZE_NONE,
1182 cris_ver_v0_10,
1183 cris_none_reg_mode_clear_test_op},
1184
1185 {"xor", 0x07B0, 0x0840, "r,R", 0, SIZE_NONE, 0,
1186 cris_xor_op},
1187
1188 {NULL, 0, 0, NULL, 0, 0, 0, cris_not_implemented_op}
1189};
1190
1191/* Condition-names, indexed by the CC_* numbers as found in cris.h. */
1192const char * const
1193cris_cc_strings[] =
1194{
1195 "hs",
1196 "lo",
1197 "ne",
1198 "eq",
1199 "vc",
1200 "vs",
1201 "pl",
1202 "mi",
1203 "ls",
1204 "hi",
1205 "ge",
1206 "lt",
1207 "gt",
1208 "le",
1209 "a",
1210 /* This is a placeholder. In v0, this would be "ext". In v32, this
302cb24a 1211 is "sb". */
450d4ff5
TS		 1212 "wf"
1213};
1214
450d4ff5
TS		 1215/*
1216 * Local variables:
1217 * eval: (c-set-style "gnu")
1218 * indent-tabs-mode: t
1219 * End:
1220 */
1221
1222
1223/* No instruction will be disassembled longer than this. In theory, and
1224 in silicon, address prefixes can be cascaded. In practice, cascading
1225 is not used by GCC, and not supported by the assembler. */
1226#ifndef MAX_BYTES_PER_CRIS_INSN
1227#define MAX_BYTES_PER_CRIS_INSN 8
1228#endif
1229
1230/* Whether or not to decode prefixes, folding it into the following
1231 instruction. FIXME: Make this optional later. */
1232#ifndef PARSE_PREFIX
1233#define PARSE_PREFIX 1
1234#endif
1235
1236/* Sometimes we prefix all registers with this character. */
1237#define REGISTER_PREFIX_CHAR '$'
1238
1239/* Whether or not to trace the following sequence:
1240 sub* X,r%d
1241 bound* Y,r%d
1242 adds.w [pc+r%d.w],pc
1243
1244 This is the assembly form of a switch-statement in C.
1245 The "sub is optional. If there is none, then X will be zero.
1246 X is the value of the first case,
1247 Y is the number of cases (including default).
1248
1249 This results in case offsets printed on the form:
1250 case N: -> case_address
1251 where N is an estimation on the corresponding 'case' operand in C,
1252 and case_address is where execution of that case continues after the
1253 sequence presented above.
1254
1255 The old style of output was to print the offsets as instructions,
1256 which made it hard to follow "case"-constructs in the disassembly,
1257 and caused a lot of annoying warnings about undefined instructions.
1258
1259 FIXME: Make this optional later. */
1260#ifndef TRACE_CASE
1261#define TRACE_CASE (disdata->trace_case)
1262#endif
1263
1264enum cris_disass_family
1265 { cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 };
1266
1267/* Stored in the disasm_info->private_data member. */
1268struct cris_disasm_data
1269{
1270 /* Whether to print something less confusing if we find something
1271 matching a switch-construct. */
1272 bfd_boolean trace_case;
1273
1274 /* Whether this code is flagged as crisv32. FIXME: Should be an enum
1275 that includes "compatible". */
1276 enum cris_disass_family distype;
1277};
1278
1279/* Value of first element in switch. */
1280static long case_offset = 0;
1281
1282/* How many more case-offsets to print. */
1283static long case_offset_counter = 0;
1284
1285/* Number of case offsets. */
1286static long no_of_case_offsets = 0;
1287
1288/* Candidate for next case_offset. */
1289static long last_immediate = 0;
1290
1291static int cris_constraint
1292 (const char *, unsigned, unsigned, struct cris_disasm_data *);
1293
1294/* Parse disassembler options and store state in info. FIXME: For the
1295 time being, we abuse static variables. */
1296
9739b11a
PB		 1297static void
1298cris_parse_disassembler_options (struct cris_disasm_data *disdata,
1299 char *disassembler_options,
450d4ff5
TS		 1300 enum cris_disass_family distype)
1301{
450d4ff5
TS		 1302 /* Default true. */
1303 disdata->trace_case
9739b11a
PB		 1304 = (disassembler_options == NULL
1305 || (strcmp (disassembler_options, "nocase") != 0));
450d4ff5
TS		 1306
1307 disdata->distype = distype;
450d4ff5
TS		 1308}
1309
1310static const struct cris_spec_reg *
1311spec_reg_info (unsigned int sreg, enum cris_disass_family distype)
1312{
1313 int i;
1314
1315 for (i = 0; cris_spec_regs[i].name != NULL; i++)
1316 {
1317 if (cris_spec_regs[i].number == sreg)
1318 {
1319 if (distype == cris_dis_v32)
1320 switch (cris_spec_regs[i].applicable_version)
1321 {
1322 case cris_ver_warning:
1323 case cris_ver_version_all:
1324 case cris_ver_v3p:
1325 case cris_ver_v8p:
1326 case cris_ver_v10p:
1327 case cris_ver_v32p:
1328 /* No ambiguous sizes or register names with CRISv32. */
1329 if (cris_spec_regs[i].warning == NULL)
1330 return &cris_spec_regs[i];
1331 default:
1332 ;
1333 }
1334 else if (cris_spec_regs[i].applicable_version != cris_ver_v32p)
1335 return &cris_spec_regs[i];
1336 }
1337 }
1338
1339 return NULL;
1340}
1341
1342/* Return the number of bits in the argument. */
1343
1344static int
1345number_of_bits (unsigned int val)
1346{
1347 int bits;
1348
1349 for (bits = 0; val != 0; val &= val - 1)
1350 bits++;
1351
1352 return bits;
1353}
1354
1355/* Get an entry in the opcode-table. */
1356
1357static const struct cris_opcode *
1358get_opcode_entry (unsigned int insn,
1359 unsigned int prefix_insn,
1360 struct cris_disasm_data *disdata)
1361{
1362 /* For non-prefixed insns, we keep a table of pointers, indexed by the
1363 insn code. Each entry is initialized when found to be NULL. */
1364 static const struct cris_opcode **opc_table = NULL;
1365
1366 const struct cris_opcode *max_matchedp = NULL;
1367 const struct cris_opcode **prefix_opc_table = NULL;
1368
1369 /* We hold a table for each prefix that need to be handled differently. */
1370 static const struct cris_opcode **dip_prefixes = NULL;
1371 static const struct cris_opcode **bdapq_m1_prefixes = NULL;
1372 static const struct cris_opcode **bdapq_m2_prefixes = NULL;
1373 static const struct cris_opcode **bdapq_m4_prefixes = NULL;
1374 static const struct cris_opcode **rest_prefixes = NULL;
1375
1376 /* Allocate and clear the opcode-table. */
1377 if (opc_table == NULL)
1378 {
520a02f8
SW		 1379 opc_table = g_new0(const struct cris_opcode *, 65536);
1380 dip_prefixes = g_new0(const struct cris_opcode *, 65536);
1381 bdapq_m1_prefixes = g_new0(const struct cris_opcode *, 65536);
1382 bdapq_m2_prefixes = g_new0(const struct cris_opcode *, 65536);
1383 bdapq_m4_prefixes = g_new0(const struct cris_opcode *, 65536);
1384 rest_prefixes = g_new0(const struct cris_opcode *, 65536);
450d4ff5
TS		 1385 }
1386
1387 /* Get the right table if this is a prefix.
1388 This code is connected to cris_constraints in that it knows what
1389 prefixes play a role in recognition of patterns; the necessary
1390 state is reflected by which table is used. If constraints
1391 involving match or non-match of prefix insns are changed, then this
1392 probably needs changing too. */
1393 if (prefix_insn != NO_CRIS_PREFIX)
1394 {
1395 const struct cris_opcode *popcodep
1396 = (opc_table[prefix_insn] != NULL
1397 ? opc_table[prefix_insn]
1398 : get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata));
1399
1400 if (popcodep == NULL)
1401 return NULL;
1402
1403 if (popcodep->match == BDAP_QUICK_OPCODE)
1404 {
1405 /* Since some offsets are recognized with "push" macros, we
1406 have to have different tables for them. */
1407 int offset = (prefix_insn & 255);
1408
1409 if (offset > 127)
1410 offset -= 256;
1411
1412 switch (offset)
1413 {
1414 case -4:
1415 prefix_opc_table = bdapq_m4_prefixes;
1416 break;
1417
1418 case -2:
1419 prefix_opc_table = bdapq_m2_prefixes;
1420 break;
1421
1422 case -1:
1423 prefix_opc_table = bdapq_m1_prefixes;
1424 break;
1425
1426 default:
1427 prefix_opc_table = rest_prefixes;
1428 break;
1429 }
1430 }
1431 else if (popcodep->match == DIP_OPCODE)
1432 /* We don't allow postincrement when the prefix is DIP, so use a
1433 different table for DIP. */
1434 prefix_opc_table = dip_prefixes;
1435 else
1436 prefix_opc_table = rest_prefixes;
1437 }
1438
1439 if (prefix_insn != NO_CRIS_PREFIX
1440 && prefix_opc_table[insn] != NULL)
1441 max_matchedp = prefix_opc_table[insn];
1442 else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL)
1443 max_matchedp = opc_table[insn];
1444 else
1445 {
1446 const struct cris_opcode *opcodep;
1447 int max_level_of_match = -1;
1448
1449 for (opcodep = cris_opcodes;
1450 opcodep->name != NULL;
1451 opcodep++)
1452 {
1453 int level_of_match;
1454
1455 if (disdata->distype == cris_dis_v32)
1456 {
1457 switch (opcodep->applicable_version)
1458 {
1459 case cris_ver_version_all:
1460 break;
1461
1462 case cris_ver_v0_3:
1463 case cris_ver_v0_10:
1464 case cris_ver_v3_10:
1465 case cris_ver_sim_v0_10:
1466 case cris_ver_v8_10:
1467 case cris_ver_v10:
1468 case cris_ver_warning:
1469 continue;
1470
1471 case cris_ver_v3p:
1472 case cris_ver_v8p:
1473 case cris_ver_v10p:
1474 case cris_ver_v32p:
1475 break;
1476
1477 case cris_ver_v8:
1478 abort ();
1479 default:
1480 abort ();
1481 }
1482 }
1483 else
1484 {
1485 switch (opcodep->applicable_version)
1486 {
1487 case cris_ver_version_all:
1488 case cris_ver_v0_3:
1489 case cris_ver_v3p:
1490 case cris_ver_v0_10:
1491 case cris_ver_v8p:
1492 case cris_ver_v8_10:
1493 case cris_ver_v10:
1494 case cris_ver_sim_v0_10:
1495 case cris_ver_v10p:
1496 case cris_ver_warning:
1497 break;
1498
1499 case cris_ver_v32p:
1500 continue;
1501
1502 case cris_ver_v8:
1503 abort ();
1504 default:
1505 abort ();
1506 }
1507 }
1508
1509 /* We give a double lead for bits matching the template in
1510 cris_opcodes. Not even, because then "move p8,r10" would
1511 be given 2 bits lead over "clear.d r10". When there's a
1512 tie, the first entry in the table wins. This is
1513 deliberate, to avoid a more complicated recognition
1514 formula. */
1515 if ((opcodep->match & insn) == opcodep->match
1516 && (opcodep->lose & insn) == 0
1517 && ((level_of_match
1518 = cris_constraint (opcodep->args,
1519 insn,
1520 prefix_insn,
1521 disdata))
1522 >= 0)
1523 && ((level_of_match
1524 += 2 * number_of_bits (opcodep->match
1525 | opcodep->lose))
1526 > max_level_of_match))
1527 {
1528 max_matchedp = opcodep;
1529 max_level_of_match = level_of_match;
1530
1531 /* If there was a full match, never mind looking
1532 further. */
1533 if (level_of_match >= 2 * 16)
1534 break;
1535 }
1536 }
1537 /* Fill in the new entry.
1538
1539 If there are changes to the opcode-table involving prefixes, and
1540 disassembly then does not work correctly, try removing the
1541 else-clause below that fills in the prefix-table. If that
1542 helps, you need to change the prefix_opc_table setting above, or
1543 something related. */
1544 if (prefix_insn == NO_CRIS_PREFIX)
1545 opc_table[insn] = max_matchedp;
1546 else
1547 prefix_opc_table[insn] = max_matchedp;
1548 }
1549
1550 return max_matchedp;
1551}
1552
1553/* Return -1 if the constraints of a bitwise-matched instruction say
1554 that there is no match. Otherwise return a nonnegative number
1555 indicating the confidence in the match (higher is better). */
1556
1557static int
1558cris_constraint (const char *cs,
1559 unsigned int insn,
1560 unsigned int prefix_insn,
1561 struct cris_disasm_data *disdata)
1562{
1563 int retval = 0;
1564 int tmp;
1565 int prefix_ok = 0;
1566 const char *s;
1567
1568 for (s = cs; *s; s++)
1569 switch (*s)
1570 {
1571 case '!':
1572 /* Do not recognize "pop" if there's a prefix and then only for
1573 v0..v10. */
1574 if (prefix_insn != NO_CRIS_PREFIX
1575 || disdata->distype != cris_dis_v0_v10)
1576 return -1;
1577 break;
1578
1579 case 'U':
1580 /* Not recognized at disassembly. */
1581 return -1;
1582
1583 case 'M':
1584 /* Size modifier for "clear", i.e. special register 0, 4 or 8.
1585 Check that it is one of them. Only special register 12 could
1586 be mismatched, but checking for matches is more logical than
1587 checking for mismatches when there are only a few cases. */
1588 tmp = ((insn >> 12) & 0xf);
1589 if (tmp != 0 && tmp != 4 && tmp != 8)
1590 return -1;
1591 break;
1592
1593 case 'm':
1594 if ((insn & 0x30) == 0x30)
1595 return -1;
1596 break;
1597
1598 case 'S':
1599 /* A prefix operand without side-effect. */
1600 if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0)
1601 {
1602 prefix_ok = 1;
1603 break;
1604 }
1605 else
1606 return -1;
1607
1608 case 's':
1609 case 'y':
1610 case 'Y':
1611 /* If this is a prefixed insn with postincrement (side-effect),
1612 the prefix must not be DIP. */
1613 if (prefix_insn != NO_CRIS_PREFIX)
1614 {
1615 if (insn & 0x400)
1616 {
1617 const struct cris_opcode *prefix_opcodep
1618 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1619
1620 if (prefix_opcodep->match == DIP_OPCODE)
1621 return -1;
1622 }
1623
1624 prefix_ok = 1;
1625 }
1626 break;
1627
1628 case 'B':
1629 /* If we don't fall through, then the prefix is ok. */
1630 prefix_ok = 1;
1631
1632 /* A "push" prefix. Check for valid "push" size.
1633 In case of special register, it may be != 4. */
1634 if (prefix_insn != NO_CRIS_PREFIX)
1635 {
1636 /* Match the prefix insn to BDAPQ. */
1637 const struct cris_opcode *prefix_opcodep
1638 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1639
1640 if (prefix_opcodep->match == BDAP_QUICK_OPCODE)
1641 {
1642 int pushsize = (prefix_insn & 255);
1643
1644 if (pushsize > 127)
1645 pushsize -= 256;
1646
1647 if (s[1] == 'P')
1648 {
1649 unsigned int spec_reg = (insn >> 12) & 15;
1650 const struct cris_spec_reg *sregp
1651 = spec_reg_info (spec_reg, disdata->distype);
1652
1653 /* For a special-register, the "prefix size" must
1654 match the size of the register. */
1655 if (sregp && sregp->reg_size == (unsigned int) -pushsize)
1656 break;
1657 }
1658 else if (s[1] == 'R')
1659 {
1660 if ((insn & 0x30) == 0x20 && pushsize == -4)
1661 break;
1662 }
1663 /* FIXME: Should abort here; next constraint letter
1664 *must* be 'P' or 'R'. */
1665 }
1666 }
1667 return -1;
1668
1669 case 'D':
1670 retval = (((insn >> 12) & 15) == (insn & 15));
1671 if (!retval)
1672 return -1;
1673 else
1674 retval += 4;
1675 break;
1676
1677 case 'P':
1678 {
1679 const struct cris_spec_reg *sregp
1680 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
1681
1682 /* Since we match four bits, we will give a value of 4-1 = 3
1683 in a match. If there is a corresponding exact match of a
1684 special register in another pattern, it will get a value of
1685 4, which will be higher. This should be correct in that an
1686 exact pattern would match better than a general pattern.
1687
1688 Note that there is a reason for not returning zero; the
1689 pattern for "clear" is partly matched in the bit-pattern
1690 (the two lower bits must be zero), while the bit-pattern
1691 for a move from a special register is matched in the
1692 register constraint. */
1693
1694 if (sregp != NULL)
1695 {
1696 retval += 3;
1697 break;
1698 }
1699 else
1700 return -1;
1701 }
1702 }
1703
1704 if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok)
1705 return -1;
1706
1707 return retval;
1708}
1709
1710/* Format number as hex with a leading "0x" into outbuffer. */
1711
1712static char *
1713format_hex (unsigned long number,
1714 char *outbuffer,
1715 struct cris_disasm_data *disdata)
1716{
1717 /* Truncate negative numbers on >32-bit hosts. */
1718 number &= 0xffffffff;
1719
1720 sprintf (outbuffer, "0x%lx", number);
1721
1722 /* Save this value for the "case" support. */
1723 if (TRACE_CASE)
1724 last_immediate = number;
1725
1726 return outbuffer + strlen (outbuffer);
1727}
1728
1729/* Format number as decimal into outbuffer. Parameter signedp says
1730 whether the number should be formatted as signed (!= 0) or
1731 unsigned (== 0). */
1732
1733static char *
1734format_dec (long number, char *outbuffer, int signedp)
1735{
1736 last_immediate = number;
1737 sprintf (outbuffer, signedp ? "%ld" : "%lu", number);
1738
1739 return outbuffer + strlen (outbuffer);
1740}
1741
1742/* Format the name of the general register regno into outbuffer. */
1743
1744static char *
1745format_reg (struct cris_disasm_data *disdata,
1746 int regno,
1747 char *outbuffer_start,
1748 bfd_boolean with_reg_prefix)
1749{
1750 char *outbuffer = outbuffer_start;
1751
1752 if (with_reg_prefix)
1753 *outbuffer++ = REGISTER_PREFIX_CHAR;
1754
1755 switch (regno)
1756 {
1757 case 15:
1758 /* For v32, there is no context in which we output PC. */
1759 if (disdata->distype == cris_dis_v32)
1760 strcpy (outbuffer, "acr");
1761 else
1762 strcpy (outbuffer, "pc");
1763 break;
1764
1765 case 14:
1766 strcpy (outbuffer, "sp");
1767 break;
1768
1769 default:
1770 sprintf (outbuffer, "r%d", regno);
1771 break;
1772 }
1773
1774 return outbuffer_start + strlen (outbuffer_start);
1775}
1776
1777/* Format the name of a support register into outbuffer. */
1778
1779static char *
1780format_sup_reg (unsigned int regno,
1781 char *outbuffer_start,
1782 bfd_boolean with_reg_prefix)
1783{
1784 char *outbuffer = outbuffer_start;
1785 int i;
1786
1787 if (with_reg_prefix)
1788 *outbuffer++ = REGISTER_PREFIX_CHAR;
1789
1790 for (i = 0; cris_support_regs[i].name != NULL; i++)
1791 if (cris_support_regs[i].number == regno)
1792 {
1793 sprintf (outbuffer, "%s", cris_support_regs[i].name);
1794 return outbuffer_start + strlen (outbuffer_start);
1795 }
1796
1797 /* There's supposed to be register names covering all numbers, though
1798 some may be generic names. */
1799 sprintf (outbuffer, "format_sup_reg-BUG");
1800 return outbuffer_start + strlen (outbuffer_start);
1801}
1802
1803/* Return the length of an instruction. */
1804
1805static unsigned
1806bytes_to_skip (unsigned int insn,
1807 const struct cris_opcode *matchedp,
1808 enum cris_disass_family distype,
1809 const struct cris_opcode *prefix_matchedp)
1810{
1811 /* Each insn is a word plus "immediate" operands. */
1812 unsigned to_skip = 2;
1813 const char *template = matchedp->args;
1814 const char *s;
1815
1816 for (s = template; *s; s++)
1817 if ((*s == 's' || *s == 'N' || *s == 'Y')
1818 && (insn & 0x400) && (insn & 15) == 15
1819 && prefix_matchedp == NULL)
1820 {
1821 /* Immediate via [pc+], so we have to check the size of the
1822 operand. */
1823 int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3));
1824
1825 if (matchedp->imm_oprnd_size == SIZE_FIX_32)
1826 to_skip += 4;
1827 else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG)
1828 {
1829 const struct cris_spec_reg *sregp
1830 = spec_reg_info ((insn >> 12) & 15, distype);
1831
1832 /* FIXME: Improve error handling; should have been caught
1833 earlier. */
1834 if (sregp == NULL)
1835 return 2;
1836
1837 /* PC is incremented by two, not one, for a byte. Except on
1838 CRISv32, where constants are always DWORD-size for
1839 special registers. */
1840 to_skip +=
1841 distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1;
1842 }
1843 else
1844 to_skip += (mode_size + 1) & ~1;
1845 }
1846 else if (*s == 'n')
1847 to_skip += 4;
1848 else if (*s == 'b')
1849 to_skip += 2;
1850
1851 return to_skip;
1852}
1853
1854/* Print condition code flags. */
1855
1856static char *
1857print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp)
1858{
1859 /* Use the v8 (Etrax 100) flag definitions for disassembly.
1860 The differences with v0 (Etrax 1..4) vs. Svinto are:
1861 v0 'd' <=> v8 'm'
1862 v0 'e' <=> v8 'b'.
1863 FIXME: Emit v0..v3 flag names somehow. */
1864 static const char v8_fnames[] = "cvznxibm";
1865 static const char v32_fnames[] = "cvznxiup";
1866 const char *fnames
1867 = disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames;
1868
1869 unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15));
1870 int i;
1871
1872 for (i = 0; i < 8; i++)
1873 if (flagbits & (1 << i))
1874 *cp++ = fnames[i];
1875
1876 return cp;
1877}
1878
1879/* Print out an insn with its operands, and update the info->insn_type
1880 fields. The prefix_opcodep and the rest hold a prefix insn that is
1881 supposed to be output as an address mode. */
1882
1883static void
1884print_with_operands (const struct cris_opcode *opcodep,
1885 unsigned int insn,
1886 unsigned char *buffer,
1887 bfd_vma addr,
1888 disassemble_info *info,
1889 /* If a prefix insn was before this insn (and is supposed
1890 to be output as an address), here is a description of
1891 it. */
1892 const struct cris_opcode *prefix_opcodep,
1893 unsigned int prefix_insn,
1894 unsigned char *prefix_buffer,
1895 bfd_boolean with_reg_prefix)
1896{
1897 /* Get a buffer of somewhat reasonable size where we store
1898 intermediate parts of the insn. */
1899 char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2];
1900 char *tp = temp;
1901 static const char mode_char[] = "bwd?";
1902 const char *s;
1903 const char *cs;
1904 struct cris_disasm_data *disdata
1905 = (struct cris_disasm_data *) info->private_data;
1906
1907 /* Print out the name first thing we do. */
1908 (*info->fprintf_func) (info->stream, "%s", opcodep->name);
1909
1910 cs = opcodep->args;
1911 s = cs;
1912
1913 /* Ignore any prefix indicator. */
1914 if (*s == 'p')
1915 s++;
1916
1917 if (*s == 'm' || *s == 'M' || *s == 'z')
1918 {
1919 *tp++ = '.';
1920
1921 /* Get the size-letter. */
1922 *tp++ = *s == 'M'
1923 ? (insn & 0x8000 ? 'd'
1924 : insn & 0x4000 ? 'w' : 'b')
1925 : mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)];
1926
1927 /* Ignore the size and the space character that follows. */
1928 s += 2;
1929 }
1930
1931 /* Add a space if this isn't a long-branch, because for those will add
1932 the condition part of the name later. */
1933 if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256))
1934 *tp++ = ' ';
1935
1936 /* Fill in the insn-type if deducible from the name (and there's no
1937 better way). */
1938 if (opcodep->name[0] == 'j')
1939 {
1940 if (CONST_STRNEQ (opcodep->name, "jsr"))
1941 /* It's "jsr" or "jsrc". */
1942 info->insn_type = dis_jsr;
1943 else
1944 /* Any other jump-type insn is considered a branch. */
1945 info->insn_type = dis_branch;
1946 }
1947
1948 /* We might know some more fields right now. */
1949 info->branch_delay_insns = opcodep->delayed;
1950
1951 /* Handle operands. */
1952 for (; *s; s++)
1953 {
1954 switch (*s)
1955 {
1956 case 'T':
1957 tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix);
1958 break;
1959
1960 case 'A':
1961 if (with_reg_prefix)
1962 *tp++ = REGISTER_PREFIX_CHAR;
1963 *tp++ = 'a';
1964 *tp++ = 'c';
1965 *tp++ = 'r';
1966 break;
1967
1968 case '[':
1969 case ']':
1970 case ',':
1971 *tp++ = *s;
1972 break;
1973
1974 case '!':
1975 /* Ignore at this point; used at earlier stages to avoid
1976 recognition if there's a prefix at something that in other
1977 ways looks like a "pop". */
1978 break;
1979
1980 case 'd':
1981 /* Ignore. This is an optional ".d " on the large one of
1982 relaxable insns. */
1983 break;
1984
1985 case 'B':
1986 /* This was the prefix that made this a "push". We've already
1987 handled it by recognizing it, so signal that the prefix is
1988 handled by setting it to NULL. */
1989 prefix_opcodep = NULL;
1990 break;
1991
1992 case 'D':
1993 case 'r':
1994 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
1995 break;
1996
1997 case 'R':
1998 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
1999 break;
2000
2001 case 'n':
2002 {
2003 /* Like N but pc-relative to the start of the insn. */
001ebaca 2004 uint32_t number
450d4ff5
TS		 2005 = (buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2006 + buffer[5] * 0x1000000 + addr);
2007
2008 /* Finish off and output previous formatted bytes. */
2009 *tp = 0;
2010 if (temp[0])
2011 (*info->fprintf_func) (info->stream, "%s", temp);
2012 tp = temp;
2013
2014 (*info->print_address_func) ((bfd_vma) number, info);
2015 }
2016 break;
2017
2018 case 'u':
2019 {
2020 /* Like n but the offset is bits <3:0> in the instruction. */
2021 unsigned long number = (buffer[0] & 0xf) * 2 + addr;
2022
2023 /* Finish off and output previous formatted bytes. */
2024 *tp = 0;
2025 if (temp[0])
2026 (*info->fprintf_func) (info->stream, "%s", temp);
2027 tp = temp;
2028
2029 (*info->print_address_func) ((bfd_vma) number, info);
2030 }
2031 break;
2032
2033 case 'N':
2034 case 'y':
2035 case 'Y':
2036 case 'S':
2037 case 's':
2038 /* Any "normal" memory operand. */
2039 if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL)
2040 {
2041 /* We're looking at [pc+], i.e. we need to output an immediate
2042 number, where the size can depend on different things. */
230f4c6b 2043 int32_t number;
450d4ff5
TS		 2044 int signedp
2045 = ((*cs == 'z' && (insn & 0x20))
2046 || opcodep->match == BDAP_QUICK_OPCODE);
2047 int nbytes;
2048
2049 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2050 nbytes = 4;
2051 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2052 {
2053 const struct cris_spec_reg *sregp
2054 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2055
2056 /* A NULL return should have been as a non-match earlier,
2057 so catch it as an internal error in the error-case
2058 below. */
2059 if (sregp == NULL)
2060 /* Whatever non-valid size. */
2061 nbytes = 42;
2062 else
2063 /* PC is always incremented by a multiple of two.
2064 For CRISv32, immediates are always 4 bytes for
2065 special registers. */
2066 nbytes = disdata->distype == cris_dis_v32
2067 ? 4 : (sregp->reg_size + 1) & ~1;
2068 }
2069 else
2070 {
2071 int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3));
2072
2073 if (mode_size == 1)
2074 nbytes = 2;
2075 else
2076 nbytes = mode_size;
2077 }
2078
2079 switch (nbytes)
2080 {
2081 case 1:
2082 number = buffer[2];
2083 if (signedp && number > 127)
2084 number -= 256;
2085 break;
2086
2087 case 2:
2088 number = buffer[2] + buffer[3] * 256;
2089 if (signedp && number > 32767)
2090 number -= 65536;
2091 break;
2092
2093 case 4:
2094 number
2095 = buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2096 + buffer[5] * 0x1000000;
2097 break;
2098
2099 default:
2100 strcpy (tp, "bug");
2101 tp += 3;
2102 number = 42;
2103 }
2104
2105 if ((*cs == 'z' && (insn & 0x20))
2106 || (opcodep->match == BDAP_QUICK_OPCODE
2107 && (nbytes <= 2 || buffer[1 + nbytes] == 0)))
2108 tp = format_dec (number, tp, signedp);
2109 else
2110 {
2111 unsigned int highbyte = (number >> 24) & 0xff;
2112
2113 /* Either output this as an address or as a number. If it's
2114 a dword with the same high-byte as the address of the
2115 insn, assume it's an address, and also if it's a non-zero
2116 non-0xff high-byte. If this is a jsr or a jump, then
2117 it's definitely an address. */
2118 if (nbytes == 4
2119 && (highbyte == ((addr >> 24) & 0xff)
2120 || (highbyte != 0 && highbyte != 0xff)
2121 || info->insn_type == dis_branch
2122 || info->insn_type == dis_jsr))
2123 {
2124 /* Finish off and output previous formatted bytes. */
2125 *tp = 0;
2126 tp = temp;
2127 if (temp[0])
2128 (*info->fprintf_func) (info->stream, "%s", temp);
2129
2130 (*info->print_address_func) ((bfd_vma) number, info);
2131
2132 info->target = number;
2133 }
2134 else
2135 tp = format_hex (number, tp, disdata);
2136 }
2137 }
2138 else
2139 {
2140 /* Not an immediate number. Then this is a (possibly
2141 prefixed) memory operand. */
2142 if (info->insn_type != dis_nonbranch)
2143 {
2144 int mode_size
2145 = 1 << ((insn >> 4)
2146 & (opcodep->args[0] == 'z' ? 1 : 3));
2147 int size;
2148 info->insn_type = dis_dref;
2149 info->flags |= CRIS_DIS_FLAG_MEMREF;
2150
2151 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2152 size = 4;
2153 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2154 {
2155 const struct cris_spec_reg *sregp
2156 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2157
2158 /* FIXME: Improve error handling; should have been caught
2159 earlier. */
2160 if (sregp == NULL)
2161 size = 4;
2162 else
2163 size = sregp->reg_size;
2164 }
2165 else
2166 size = mode_size;
2167
2168 info->data_size = size;
2169 }
2170
2171 *tp++ = '[';
2172
2173 if (prefix_opcodep
2174 /* We don't match dip with a postincremented field
2175 as a side-effect address mode. */
2176 && ((insn & 0x400) == 0
2177 || prefix_opcodep->match != DIP_OPCODE))
2178 {
2179 if (insn & 0x400)
2180 {
2181 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2182 *tp++ = '=';
2183 }
2184
2185
2186 /* We mainly ignore the prefix format string when the
2187 address-mode syntax is output. */
2188 switch (prefix_opcodep->match)
2189 {
2190 case DIP_OPCODE:
2191 /* It's [r], [r+] or [pc+]. */
2192 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2193 {
2194 /* It's [pc+]. This cannot possibly be anything
2195 but an address. */
001ebaca 2196 uint32_t number
450d4ff5
TS		 2197 = prefix_buffer[2] + prefix_buffer[3] * 256
2198 + prefix_buffer[4] * 65536
2199 + prefix_buffer[5] * 0x1000000;
2200
2201 info->target = (bfd_vma) number;
2202
2203 /* Finish off and output previous formatted
2204 data. */
2205 *tp = 0;
2206 tp = temp;
2207 if (temp[0])
2208 (*info->fprintf_func) (info->stream, "%s", temp);
2209
2210 (*info->print_address_func) ((bfd_vma) number, info);
2211 }
2212 else
2213 {
2214 /* For a memref in an address, we use target2.
2215 In this case, target is zero. */
2216 info->flags
2217 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2218 | CRIS_DIS_FLAG_MEM_TARGET2_MEM);
2219
2220 info->target2 = prefix_insn & 15;
2221
2222 *tp++ = '[';
2223 tp = format_reg (disdata, prefix_insn & 15, tp,
2224 with_reg_prefix);
2225 if (prefix_insn & 0x400)
2226 *tp++ = '+';
2227 *tp++ = ']';
2228 }
2229 break;
2230
2231 case BDAP_QUICK_OPCODE:
2232 {
2233 int number;
2234
2235 number = prefix_buffer[0];
2236 if (number > 127)
2237 number -= 256;
2238
2239 /* Output "reg+num" or, if num < 0, "reg-num". */
2240 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2241 with_reg_prefix);
2242 if (number >= 0)
2243 *tp++ = '+';
2244 tp = format_dec (number, tp, 1);
2245
2246 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2247 info->target = (prefix_insn >> 12) & 15;
2248 info->target2 = (bfd_vma) number;
2249 break;
2250 }
2251
2252 case BIAP_OPCODE:
2253 /* Output "r+R.m". */
2254 tp = format_reg (disdata, prefix_insn & 15, tp,
2255 with_reg_prefix);
2256 *tp++ = '+';
2257 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2258 with_reg_prefix);
2259 *tp++ = '.';
2260 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2261
2262 info->flags
2263 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2264 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2265
2266 | ((prefix_insn & 0x8000)
2267 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT4
2268 : ((prefix_insn & 0x8000)
2269 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0)));
2270
2271 /* Is it the casejump? It's a "adds.w [pc+r%d.w],pc". */
2272 if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f)
2273 /* Then start interpreting data as offsets. */
2274 case_offset_counter = no_of_case_offsets;
2275 break;
2276
2277 case BDAP_INDIR_OPCODE:
2278 /* Output "r+s.m", or, if "s" is [pc+], "r+s" or
2279 "r-s". */
2280 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2281 with_reg_prefix);
2282
2283 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2284 {
230f4c6b 2285 int32_t number;
450d4ff5
TS		 2286 unsigned int nbytes;
2287
2288 /* It's a value. Get its size. */
2289 int mode_size = 1 << ((prefix_insn >> 4) & 3);
2290
2291 if (mode_size == 1)
2292 nbytes = 2;
2293 else
2294 nbytes = mode_size;
2295
2296 switch (nbytes)
2297 {
2298 case 1:
2299 number = prefix_buffer[2];
2300 if (number > 127)
2301 number -= 256;
2302 break;
2303
2304 case 2:
2305 number = prefix_buffer[2] + prefix_buffer[3] * 256;
2306 if (number > 32767)
2307 number -= 65536;
2308 break;
2309
2310 case 4:
2311 number
2312 = prefix_buffer[2] + prefix_buffer[3] * 256
2313 + prefix_buffer[4] * 65536
2314 + prefix_buffer[5] * 0x1000000;
2315 break;
2316
2317 default:
2318 strcpy (tp, "bug");
2319 tp += 3;
2320 number = 42;
2321 }
2322
2323 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2324 info->target2 = (bfd_vma) number;
2325
2326 /* If the size is dword, then assume it's an
2327 address. */
2328 if (nbytes == 4)
2329 {
2330 /* Finish off and output previous formatted
2331 bytes. */
2332 *tp++ = '+';
2333 *tp = 0;
2334 tp = temp;
2335 (*info->fprintf_func) (info->stream, "%s", temp);
2336
2337 (*info->print_address_func) ((bfd_vma) number, info);
2338 }
2339 else
2340 {
2341 if (number >= 0)
2342 *tp++ = '+';
2343 tp = format_dec (number, tp, 1);
2344 }
2345 }
2346 else
2347 {
2348 /* Output "r+[R].m" or "r+[R+].m". */
2349 *tp++ = '+';
2350 *tp++ = '[';
2351 tp = format_reg (disdata, prefix_insn & 15, tp,
2352 with_reg_prefix);
2353 if (prefix_insn & 0x400)
2354 *tp++ = '+';
2355 *tp++ = ']';
2356 *tp++ = '.';
2357 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2358
2359 info->flags
2360 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2361 | CRIS_DIS_FLAG_MEM_TARGET2_MEM
2362 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2363
2364 | (((prefix_insn >> 4) == 2)
2365 ? 0
2366 : (((prefix_insn >> 4) & 3) == 1
2367 ? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD
2368 : CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE)));
2369 }
2370 break;
2371
2372 default:
2373 (*info->fprintf_func) (info->stream, "?prefix-bug");
2374 }
2375
2376 /* To mark that the prefix is used, reset it. */
2377 prefix_opcodep = NULL;
2378 }
2379 else
2380 {
2381 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2382
2383 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2384 info->target = insn & 15;
2385
2386 if (insn & 0x400)
2387 *tp++ = '+';
2388 }
2389 *tp++ = ']';
2390 }
2391 break;
2392
2393 case 'x':
2394 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2395 *tp++ = '.';
2396 *tp++ = mode_char[(insn >> 4) & 3];
2397 break;
2398
2399 case 'I':
2400 tp = format_dec (insn & 63, tp, 0);
2401 break;
2402
2403 case 'b':
2404 {
2405 int where = buffer[2] + buffer[3] * 256;
2406
2407 if (where > 32767)
2408 where -= 65536;
2409
2410 where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4);
2411
2412 if (insn == BA_PC_INCR_OPCODE)
2413 info->insn_type = dis_branch;
2414 else
2415 info->insn_type = dis_condbranch;
2416
2417 info->target = (bfd_vma) where;
2418
2419 *tp = 0;
2420 tp = temp;
2421 (*info->fprintf_func) (info->stream, "%s%s ",
2422 temp, cris_cc_strings[insn >> 12]);
2423
2424 (*info->print_address_func) ((bfd_vma) where, info);
2425 }
2426 break;
2427
2428 case 'c':
2429 tp = format_dec (insn & 31, tp, 0);
2430 break;
2431
2432 case 'C':
2433 tp = format_dec (insn & 15, tp, 0);
2434 break;
2435
2436 case 'o':
2437 {
2438 long offset = insn & 0xfe;
2439 bfd_vma target;
2440
2441 if (insn & 1)
2442 offset |= ~0xff;
2443
2444 if (opcodep->match == BA_QUICK_OPCODE)
2445 info->insn_type = dis_branch;
2446 else
2447 info->insn_type = dis_condbranch;
2448
2449 target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset;
2450 info->target = target;
2451 *tp = 0;
2452 tp = temp;
2453 (*info->fprintf_func) (info->stream, "%s", temp);
2454 (*info->print_address_func) (target, info);
2455 }
2456 break;
2457
2458 case 'Q':
2459 case 'O':
2460 {
2461 long number = buffer[0];
2462
2463 if (number > 127)
2464 number = number - 256;
2465
2466 tp = format_dec (number, tp, 1);
2467 *tp++ = ',';
2468 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2469 }
2470 break;
2471
2472 case 'f':
2473 tp = print_flags (disdata, insn, tp);
2474 break;
2475
2476 case 'i':
2477 tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1);
2478 break;
2479
2480 case 'P':
2481 {
2482 const struct cris_spec_reg *sregp
2483 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2484
e1107884 2485 if (sregp == NULL || sregp->name == NULL)
c8667283 2486 /* Should have been caught as a non-match earlier. */
450d4ff5
TS		 2487 *tp++ = '?';
2488 else
2489 {
2490 if (with_reg_prefix)
2491 *tp++ = REGISTER_PREFIX_CHAR;
2492 strcpy (tp, sregp->name);
2493 tp += strlen (tp);
2494 }
2495 }
2496 break;
2497
2498 default:
2499 strcpy (tp, "???");
2500 tp += 3;
2501 }
2502 }
2503
2504 *tp = 0;
2505
2506 if (prefix_opcodep)
2507 (*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")",
2508 prefix_opcodep->name, prefix_opcodep->args);
2509
2510 (*info->fprintf_func) (info->stream, "%s", temp);
2511
2512 /* Get info for matching case-tables, if we don't have any active.
2513 We assume that the last constant seen is used; either in the insn
2514 itself or in a "move.d const,rN, sub.d rN,rM"-like sequence. */
2515 if (TRACE_CASE && case_offset_counter == 0)
2516 {
2517 if (CONST_STRNEQ (opcodep->name, "sub"))
2518 case_offset = last_immediate;
2519
2520 /* It could also be an "add", if there are negative case-values. */
2521 else if (CONST_STRNEQ (opcodep->name, "add"))
2522 /* The first case is the negated operand to the add. */
2523 case_offset = -last_immediate;
2524
2525 /* A bound insn will tell us the number of cases. */
2526 else if (CONST_STRNEQ (opcodep->name, "bound"))
2527 no_of_case_offsets = last_immediate + 1;
2528
2529 /* A jump or jsr or branch breaks the chain of insns for a
2530 case-table, so assume default first-case again. */
2531 else if (info->insn_type == dis_jsr
2532 || info->insn_type == dis_branch
2533 || info->insn_type == dis_condbranch)
2534 case_offset = 0;
2535 }
2536}
2537
2538
2539/* Print the CRIS instruction at address memaddr on stream. Returns
2540 length of the instruction, in bytes. Prefix register names with `$' if
2541 WITH_REG_PREFIX. */
2542
2543static int
2544print_insn_cris_generic (bfd_vma memaddr,
2545 disassemble_info *info,
2546 bfd_boolean with_reg_prefix)
2547{
2548 int nbytes;
2549 unsigned int insn;
2550 const struct cris_opcode *matchedp;
2551 int advance = 0;
2552 struct cris_disasm_data *disdata
2553 = (struct cris_disasm_data *) info->private_data;
2554
2555 /* No instruction will be disassembled as longer than this number of
2556 bytes; stacked prefixes will not be expanded. */
2557 unsigned char buffer[MAX_BYTES_PER_CRIS_INSN];
2558 unsigned char *bufp;
2559 int status = 0;
2560 bfd_vma addr;
2561
2562 /* There will be an "out of range" error after the last instruction.
2563 Reading pairs of bytes in decreasing number, we hope that we will get
2564 at least the amount that we will consume.
2565
2566 If we can't get any data, or we do not get enough data, we print
2567 the error message. */
2568
51d373cf
PC		 2569 nbytes = info->buffer_length ? info->buffer_length
2570 : MAX_BYTES_PER_CRIS_INSN;
2571 nbytes = MIN(nbytes, MAX_BYTES_PER_CRIS_INSN);
bfaf9a43 2572 status = (*info->read_memory_func) (memaddr, buffer, nbytes, info);
450d4ff5
TS		 2573
2574 /* If we did not get all we asked for, then clear the rest.
2575 Hopefully this makes a reproducible result in case of errors. */
2576 if (nbytes != MAX_BYTES_PER_CRIS_INSN)
2577 memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes);
2578
2579 addr = memaddr;
2580 bufp = buffer;
2581
2582 /* Set some defaults for the insn info. */
2583 info->insn_info_valid = 1;
2584 info->branch_delay_insns = 0;
2585 info->data_size = 0;
2586 info->insn_type = dis_nonbranch;
2587 info->flags = 0;
2588 info->target = 0;
2589 info->target2 = 0;
2590
2591 /* If we got any data, disassemble it. */
2592 if (nbytes != 0)
2593 {
2594 matchedp = NULL;
2595
2596 insn = bufp[0] + bufp[1] * 256;
2597
2598 /* If we're in a case-table, don't disassemble the offsets. */
2599 if (TRACE_CASE && case_offset_counter != 0)
2600 {
2601 info->insn_type = dis_noninsn;
2602 advance += 2;
2603
2604 /* If to print data as offsets, then shortcut here. */
2605 (*info->fprintf_func) (info->stream, "case %ld%s: -> ",
2606 case_offset + no_of_case_offsets
2607 - case_offset_counter,
2608 case_offset_counter == 1 ? "/default" :
2609 "");
2610
2611 (*info->print_address_func) ((bfd_vma)
2612 ((short) (insn)
2613 + (long) (addr
2614 - (no_of_case_offsets
2615 - case_offset_counter)
2616 * 2)), info);
2617 case_offset_counter--;
2618
2619 /* The default case start (without a "sub" or "add") must be
2620 zero. */
2621 if (case_offset_counter == 0)
2622 case_offset = 0;
2623 }
2624 else if (insn == 0)
2625 {
2626 /* We're often called to disassemble zeroes. While this is a
2627 valid "bcc .+2" insn, it is also useless enough and enough
2628 of a nuiscance that we will just output "bcc .+2" for it
2629 and signal it as a noninsn. */
2630 (*info->fprintf_func) (info->stream,
2631 disdata->distype == cris_dis_v32
2632 ? "bcc ." : "bcc .+2");
2633 info->insn_type = dis_noninsn;
2634 advance += 2;
2635 }
2636 else
2637 {
2638 const struct cris_opcode *prefix_opcodep = NULL;
2639 unsigned char *prefix_buffer = bufp;
2640 unsigned int prefix_insn = insn;
2641 int prefix_size = 0;
2642
2643 matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata);
2644
2645 /* Check if we're supposed to write out prefixes as address
2646 modes and if this was a prefix. */
2647 if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p')
2648 {
2649 /* If it's a prefix, put it into the prefix vars and get the
2650 main insn. */
2651 prefix_size = bytes_to_skip (prefix_insn, matchedp,
2652 disdata->distype, NULL);
2653 prefix_opcodep = matchedp;
2654
2655 insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256;
2656 matchedp = get_opcode_entry (insn, prefix_insn, disdata);
2657
2658 if (matchedp != NULL)
2659 {
2660 addr += prefix_size;
2661 bufp += prefix_size;
2662 advance += prefix_size;
2663 }
2664 else
2665 {
2666 /* The "main" insn wasn't valid, at least not when
2667 prefixed. Put back things enough to output the
2668 prefix insn only, as a normal insn. */
2669 matchedp = prefix_opcodep;
2670 insn = prefix_insn;
2671 prefix_opcodep = NULL;
2672 }
2673 }
2674
2675 if (matchedp == NULL)
2676 {
2677 (*info->fprintf_func) (info->stream, "??0x%x", insn);
2678 advance += 2;
2679
2680 info->insn_type = dis_noninsn;
2681 }
2682 else
2683 {
2684 advance
2685 += bytes_to_skip (insn, matchedp, disdata->distype,
2686 prefix_opcodep);
2687
2688 /* The info_type and assorted fields will be set according
2689 to the operands. */
2690 print_with_operands (matchedp, insn, bufp, addr, info,
2691 prefix_opcodep, prefix_insn,
2692 prefix_buffer, with_reg_prefix);
2693 }
2694 }
2695 }
2696 else
2697 info->insn_type = dis_noninsn;
2698
2699 /* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error
2700 status when reading that much, and the insn decoding indicated a
2701 length exceeding what we read, there is an error. */
2702 if (status != 0 && (nbytes == 0 || advance > nbytes))
2703 {
2704 (*info->memory_error_func) (status, memaddr, info);
2705 return -1;
2706 }
2707
2708 /* Max supported insn size with one folded prefix insn. */
2709 info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN;
2710
2711 /* I would like to set this to a fixed value larger than the actual
2712 number of bytes to print in order to avoid spaces between bytes,
2713 but objdump.c (2.9.1) does not like that, so we print 16-bit
2714 chunks, which is the next choice. */
2715 info->bytes_per_chunk = 2;
2716
2717 /* Printing bytes in order of increasing addresses makes sense,
2718 especially on a little-endian target.
2719 This is completely the opposite of what you think; setting this to
2720 BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N
2721 we want. */
2722 info->display_endian = BFD_ENDIAN_BIG;
2723
2724 return advance;
2725}
2726
2727/* Disassemble, prefixing register names with `$'. CRIS v0..v10. */
450d4ff5
TS		 2728static int
2729print_insn_cris_with_register_prefix (bfd_vma vma,
2730 disassemble_info *info)
2731{
9739b11a
PB		 2732 struct cris_disasm_data disdata;
2733 info->private_data = &disdata;
2734 cris_parse_disassembler_options (&disdata, info->disassembler_options,
2735 cris_dis_v0_v10);
47cbc7aa 2736 return print_insn_cris_generic (vma, info, true);
450d4ff5 2737}
450d4ff5
TS		 2738/* Disassemble, prefixing register names with `$'. CRIS v32. */
2739
2740static int
2741print_insn_crisv32_with_register_prefix (bfd_vma vma,
2742 disassemble_info *info)
2743{
9739b11a
PB		 2744 struct cris_disasm_data disdata;
2745 info->private_data = &disdata;
2746 cris_parse_disassembler_options (&disdata, info->disassembler_options,
2747 cris_dis_v32);
47cbc7aa 2748 return print_insn_cris_generic (vma, info, true);
450d4ff5
TS		 2749}
2750
2751#if 0
2752/* Disassemble, prefixing register names with `$'.
2753 Common v10 and v32 subset. */
2754
2755static int
2756print_insn_crisv10_v32_with_register_prefix (bfd_vma vma,
2757 disassemble_info *info)
2758{
9739b11a
PB		 2759 struct cris_disasm_data disdata;
2760 info->private_data = &disdata;
2761 cris_parse_disassembler_options (&disdata, info->disassembler_options,
2762 cris_dis_common_v10_v32);
47cbc7aa 2763 return print_insn_cris_generic (vma, info, true);
450d4ff5
TS		 2764}
2765
2766/* Disassemble, no prefixes on register names. CRIS v0..v10. */
2767
2768static int
2769print_insn_cris_without_register_prefix (bfd_vma vma,
2770 disassemble_info *info)
2771{
9739b11a
PB		 2772 struct cris_disasm_data disdata;
2773 info->private_data = &disdata;
2774 cris_parse_disassembler_options (&disdata, info->disassembler_options,
2775 cris_dis_v0_v10);
47cbc7aa 2776 return print_insn_cris_generic (vma, info, false);
450d4ff5
TS		 2777}
2778
2779/* Disassemble, no prefixes on register names. CRIS v32. */
2780
2781static int
2782print_insn_crisv32_without_register_prefix (bfd_vma vma,
2783 disassemble_info *info)
2784{
9739b11a
PB		 2785 struct cris_disasm_data disdata;
2786 info->private_data = &disdata;
2787 cris_parse_disassembler_options (&disdata, info->disassembler_options,
2788 cris_dis_v32);
47cbc7aa 2789 return print_insn_cris_generic (vma, info, false);
450d4ff5
TS		 2790}
2791
2792/* Disassemble, no prefixes on register names.
2793 Common v10 and v32 subset. */
2794
2795static int
2796print_insn_crisv10_v32_without_register_prefix (bfd_vma vma,
2797 disassemble_info *info)
2798{
9739b11a
PB		 2799 struct cris_disasm_data disdata;
2800 info->private_data = &disdata;
2801 cris_parse_disassembler_options (&disdata, info->disassembler_options,
2802 cris_dis_common_v10_v32);
47cbc7aa 2803 return print_insn_cris_generic (vma, info, false);
450d4ff5
TS		 2804}
2805#endif
2806
b09cd072
EI		 2807int
2808print_insn_crisv10 (bfd_vma vma,
2809 disassemble_info *info)
2810{
2811 return print_insn_cris_with_register_prefix(vma, info);
2812}
2813
450d4ff5
TS		 2814int
2815print_insn_crisv32 (bfd_vma vma,
2816 disassemble_info *info)
2817{
2818 return print_insn_crisv32_with_register_prefix(vma, info);
2819}
2820
2821/* Return a disassembler-function that prints registers with a `$' prefix,
2822 or one that prints registers without a prefix.
2823 FIXME: We should improve the solution to avoid the multitude of
2824 functions seen above. */
2825#if 0
2826disassembler_ftype
2827cris_get_disassembler (bfd *abfd)
2828{
2829 /* If there's no bfd in sight, we return what is valid as input in all
2830 contexts if fed back to the assembler: disassembly *with* register
2831 prefix. Unfortunately this will be totally wrong for v32. */
2832 if (abfd == NULL)
2833 return print_insn_cris_with_register_prefix;
2834
2835 if (bfd_get_symbol_leading_char (abfd) == 0)
2836 {
2837 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2838 return print_insn_crisv32_with_register_prefix;
2839 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2840 return print_insn_crisv10_v32_with_register_prefix;
2841
2842 /* We default to v10. This may be specifically specified in the
2843 bfd mach, but is also the default setting. */
2844 return print_insn_cris_with_register_prefix;
2845 }
2846
2847 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2848 return print_insn_crisv32_without_register_prefix;
2849 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2850 return print_insn_crisv10_v32_without_register_prefix;
2851 return print_insn_cris_without_register_prefix;
2852}
2853#endif
2854/* Local variables:
2855 eval: (c-set-style "gnu")
2856 indent-tabs-mode: t
2857 End: */
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