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.
6 This file is part of the GNU binutils and GDB, the GNU debugger.
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
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
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, see <http://www.gnu.org/licenses/>. */
21 #include "qemu/osdep.h"
22 #include "qemu-common.h"
23 #include "disas/bfd.h"
25 #include "target-cris/opcode-cris.h"
26 //#include "libiberty.h"
28 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0)
30 /* cris-opc.c -- Table of opcodes for the CRIS processor.
31 Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
32 Contributed by Axis Communications AB, Lund, Sweden.
33 Originally written for GAS 1.38.1 by Mikael Asker.
34 Reorganized by Hans-Peter Nilsson.
36 This file is part of GAS, GDB and the GNU binutils.
38 GAS, GDB, and GNU binutils is free software; you can redistribute it
39 and/or modify it under the terms of the GNU General Public License as
40 published by the Free Software Foundation; either version 2, or (at your
41 option) any later version.
43 GAS, GDB, and GNU binutils are distributed in the hope that they will be
44 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
45 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
46 GNU General Public License for more details.
48 You should have received a copy of the GNU General Public License
49 along with this program; if not, see <http://www.gnu.org/licenses/>. */
55 /* This table isn't used for CRISv32 and the size of immediate operands. */
56 const struct cris_spec_reg
59 {"bz", 0, 1, cris_ver_v32p, NULL},
60 {"p0", 0, 1, 0, NULL},
61 {"vr", 1, 1, 0, NULL},
62 {"p1", 1, 1, 0, NULL},
63 {"pid", 2, 1, cris_ver_v32p, NULL},
64 {"p2", 2, 1, cris_ver_v32p, NULL},
65 {"p2", 2, 1, cris_ver_warning, NULL},
66 {"srs", 3, 1, cris_ver_v32p, NULL},
67 {"p3", 3, 1, cris_ver_v32p, NULL},
68 {"p3", 3, 1, cris_ver_warning, NULL},
69 {"wz", 4, 2, cris_ver_v32p, NULL},
70 {"p4", 4, 2, 0, NULL},
71 {"ccr", 5, 2, cris_ver_v0_10, NULL},
72 {"exs", 5, 4, cris_ver_v32p, NULL},
73 {"p5", 5, 2, cris_ver_v0_10, NULL},
74 {"p5", 5, 4, cris_ver_v32p, NULL},
75 {"dcr0",6, 2, cris_ver_v0_3, NULL},
76 {"eda", 6, 4, cris_ver_v32p, NULL},
77 {"p6", 6, 2, cris_ver_v0_3, NULL},
78 {"p6", 6, 4, cris_ver_v32p, NULL},
79 {"dcr1/mof", 7, 4, cris_ver_v10p,
80 "Register `dcr1/mof' with ambiguous size specified. Guessing 4 bytes"},
81 {"dcr1/mof", 7, 2, cris_ver_v0_3,
82 "Register `dcr1/mof' with ambiguous size specified. Guessing 2 bytes"},
83 {"mof", 7, 4, cris_ver_v10p, NULL},
84 {"dcr1",7, 2, cris_ver_v0_3, NULL},
85 {"p7", 7, 4, cris_ver_v10p, NULL},
86 {"p7", 7, 2, cris_ver_v0_3, NULL},
87 {"dz", 8, 4, cris_ver_v32p, NULL},
88 {"p8", 8, 4, 0, NULL},
89 {"ibr", 9, 4, cris_ver_v0_10, NULL},
90 {"ebp", 9, 4, cris_ver_v32p, NULL},
91 {"p9", 9, 4, 0, NULL},
92 {"irp", 10, 4, cris_ver_v0_10, NULL},
93 {"erp", 10, 4, cris_ver_v32p, NULL},
94 {"p10", 10, 4, 0, NULL},
95 {"srp", 11, 4, 0, NULL},
96 {"p11", 11, 4, 0, NULL},
97 /* For disassembly use only. Accept at assembly with a warning. */
98 {"bar/dtp0", 12, 4, cris_ver_warning,
99 "Ambiguous register `bar/dtp0' specified"},
100 {"nrp", 12, 4, cris_ver_v32p, NULL},
101 {"bar", 12, 4, cris_ver_v8_10, NULL},
102 {"dtp0",12, 4, cris_ver_v0_3, NULL},
103 {"p12", 12, 4, 0, NULL},
104 /* For disassembly use only. Accept at assembly with a warning. */
105 {"dccr/dtp1",13, 4, cris_ver_warning,
106 "Ambiguous register `dccr/dtp1' specified"},
107 {"ccs", 13, 4, cris_ver_v32p, NULL},
108 {"dccr",13, 4, cris_ver_v8_10, NULL},
109 {"dtp1",13, 4, cris_ver_v0_3, NULL},
110 {"p13", 13, 4, 0, NULL},
111 {"brp", 14, 4, cris_ver_v3_10, NULL},
112 {"usp", 14, 4, cris_ver_v32p, NULL},
113 {"p14", 14, 4, cris_ver_v3p, NULL},
114 {"usp", 15, 4, cris_ver_v10, NULL},
115 {"spc", 15, 4, cris_ver_v32p, NULL},
116 {"p15", 15, 4, cris_ver_v10p, NULL},
117 {NULL, 0, 0, cris_ver_version_all, NULL}
120 /* Add version specifiers to this table when necessary.
121 The (now) regular coding of register names suggests a simpler
123 const struct cris_support_reg cris_support_regs[] =
144 /* All CRIS opcodes are 16 bits.
146 - The match component is a mask saying which bits must match a
147 particular opcode in order for an instruction to be an instance
150 - The args component is a string containing characters symbolically
151 matching the operands of an instruction. Used for both assembly
154 Operand-matching characters:
157 A The string "ACR" (case-insensitive).
158 B Not really an operand. It causes a "BDAP -size,SP" prefix to be
159 output for the PUSH alias-instructions and recognizes a push-
160 prefix at disassembly. This letter isn't recognized for v32.
161 Must be followed by a R or P letter.
162 ! Non-match pattern, will not match if there's a prefix insn.
163 b Non-matching operand, used for branches with 16-bit
164 displacement. Only recognized by the disassembler.
165 c 5-bit unsigned immediate in bits <4:0>.
166 C 4-bit unsigned immediate in bits <3:0>.
167 d At assembly, optionally (as in put other cases before this one)
168 ".d" or ".D" at the start of the operands, followed by one space
169 character. At disassembly, nothing.
170 D General register in bits <15:12> and <3:0>.
171 f List of flags in bits <15:12> and <3:0>.
172 i 6-bit signed immediate in bits <5:0>.
173 I 6-bit unsigned immediate in bits <5:0>.
174 M Size modifier (B, W or D) for CLEAR instructions.
175 m Size modifier (B, W or D) in bits <5:4>
176 N A 32-bit dword, like in the difference between s and y.
177 This has no effect on bits in the opcode. Can also be expressed
179 n As N, but PC-relative (to the start of the instruction).
180 o [-128..127] word offset in bits <7:1> and <0>. Used by 8-bit
182 O [-128..127] offset in bits <7:0>. Also matches a comma and a
183 general register after the expression, in bits <15:12>. Used
184 only for the BDAP prefix insn (in v32 the ADDOQ insn; same opcode).
185 P Special register in bits <15:12>.
186 p Indicates that the insn is a prefix insn. Must be first
188 Q As O, but don't relax; force an 8-bit offset.
189 R General register in bits <15:12>.
190 r General register in bits <3:0>.
191 S Source operand in bit <10> and a prefix; a 3-operand prefix
193 s Source operand in bits <10> and <3:0>, optionally with a
194 side-effect prefix, except [pc] (the name, not R15 as in ACR)
195 isn't allowed for v32 and higher.
196 T Support register in bits <15:12>.
197 u 4-bit (PC-relative) unsigned immediate word offset in bits <3:0>.
198 U Relaxes to either u or n, instruction is assumed LAPCQ or LAPC.
199 Not recognized at disassembly.
200 x Register-dot-modifier, for example "r5.w" in bits <15:12> and <5:4>.
201 y Like 's' but do not allow an integer at assembly.
202 Y The difference s-y; only an integer is allowed.
203 z Size modifier (B or W) in bit <4>. */
206 /* Please note the order of the opcodes in this table is significant.
207 The assembler requires that all instances of the same mnemonic must
208 be consecutive. If they aren't, the assembler might not recognize
209 them, or may indicate an internal error.
211 The disassembler should not normally care about the order of the
212 opcodes, but will prefer an earlier alternative if the "match-score"
213 (see cris-dis.c) is computed as equal.
215 It should not be significant for proper execution that this table is
216 in alphabetical order, but please follow that convention for an easy
219 const struct cris_opcode
222 {"abs", 0x06B0, 0x0940, "r,R", 0, SIZE_NONE, 0,
225 {"add", 0x0600, 0x09c0, "m r,R", 0, SIZE_NONE, 0,
226 cris_reg_mode_add_sub_cmp_and_or_move_op},
228 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD, 0,
229 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
231 {"add", 0x0A00, 0x01c0, "m S,D", 0, SIZE_NONE,
233 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
235 {"add", 0x0a00, 0x05c0, "m S,R,r", 0, SIZE_NONE,
237 cris_three_operand_add_sub_cmp_and_or_op},
239 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD,
241 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
243 {"addc", 0x0570, 0x0A80, "r,R", 0, SIZE_FIX_32,
245 cris_not_implemented_op},
247 {"addc", 0x09A0, 0x0250, "s,R", 0, SIZE_FIX_32,
249 cris_not_implemented_op},
251 {"addi", 0x0540, 0x0A80, "x,r,A", 0, SIZE_NONE,
255 {"addi", 0x0500, 0x0Ac0, "x,r", 0, SIZE_NONE, 0,
258 /* This collates after "addo", but we want to disassemble as "addoq",
260 {"addoq", 0x0100, 0x0E00, "Q,A", 0, SIZE_NONE,
262 cris_not_implemented_op},
264 {"addo", 0x0940, 0x0280, "m s,R,A", 0, SIZE_FIELD_SIGNED,
266 cris_not_implemented_op},
268 /* This must be located after the insn above, lest we misinterpret
269 "addo.b -1,r0,acr" as "addo .b-1,r0,acr". FIXME: Sounds like a
271 {"addo", 0x0100, 0x0E00, "O,A", 0, SIZE_NONE,
273 cris_not_implemented_op},
275 {"addq", 0x0200, 0x0Dc0, "I,R", 0, SIZE_NONE, 0,
276 cris_quick_mode_add_sub_op},
278 {"adds", 0x0420, 0x0Bc0, "z r,R", 0, SIZE_NONE, 0,
279 cris_reg_mode_add_sub_cmp_and_or_move_op},
281 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
282 {"adds", 0x0820, 0x03c0, "z s,R", 0, SIZE_FIELD, 0,
283 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
285 {"adds", 0x0820, 0x03c0, "z S,D", 0, SIZE_NONE,
287 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
289 {"adds", 0x0820, 0x07c0, "z S,R,r", 0, SIZE_NONE,
291 cris_three_operand_add_sub_cmp_and_or_op},
293 {"addu", 0x0400, 0x0be0, "z r,R", 0, SIZE_NONE, 0,
294 cris_reg_mode_add_sub_cmp_and_or_move_op},
296 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
297 {"addu", 0x0800, 0x03e0, "z s,R", 0, SIZE_FIELD, 0,
298 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
300 {"addu", 0x0800, 0x03e0, "z S,D", 0, SIZE_NONE,
302 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
304 {"addu", 0x0800, 0x07e0, "z S,R,r", 0, SIZE_NONE,
306 cris_three_operand_add_sub_cmp_and_or_op},
308 {"and", 0x0700, 0x08C0, "m r,R", 0, SIZE_NONE, 0,
309 cris_reg_mode_add_sub_cmp_and_or_move_op},
311 {"and", 0x0B00, 0x00C0, "m s,R", 0, SIZE_FIELD, 0,
312 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
314 {"and", 0x0B00, 0x00C0, "m S,D", 0, SIZE_NONE,
316 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
318 {"and", 0x0B00, 0x04C0, "m S,R,r", 0, SIZE_NONE,
320 cris_three_operand_add_sub_cmp_and_or_op},
322 {"andq", 0x0300, 0x0CC0, "i,R", 0, SIZE_NONE, 0,
323 cris_quick_mode_and_cmp_move_or_op},
325 {"asr", 0x0780, 0x0840, "m r,R", 0, SIZE_NONE, 0,
328 {"asrq", 0x03a0, 0x0c40, "c,R", 0, SIZE_NONE, 0,
331 {"ax", 0x15B0, 0xEA4F, "", 0, SIZE_NONE, 0,
334 /* FIXME: Should use branch #defines. */
335 {"b", 0x0dff, 0x0200, "b", 1, SIZE_NONE, 0,
336 cris_sixteen_bit_offset_branch_op},
340 0x0F00+(0xF-CC_A)*0x1000, "o", 1, SIZE_NONE, 0,
341 cris_eight_bit_offset_branch_op},
343 /* Needs to come after the usual "ba o", which might be relaxed to
345 {"ba", BA_DWORD_OPCODE,
346 0xffff & (~BA_DWORD_OPCODE), "n", 0, SIZE_FIX_32,
348 cris_none_reg_mode_jump_op},
350 {"bas", 0x0EBF, 0x0140, "n,P", 0, SIZE_FIX_32,
352 cris_none_reg_mode_jump_op},
354 {"basc", 0x0EFF, 0x0100, "n,P", 0, SIZE_FIX_32,
356 cris_none_reg_mode_jump_op},
359 BRANCH_QUICK_OPCODE+CC_CC*0x1000,
360 0x0f00+(0xF-CC_CC)*0x1000, "o", 1, SIZE_NONE, 0,
361 cris_eight_bit_offset_branch_op},
364 BRANCH_QUICK_OPCODE+CC_CS*0x1000,
365 0x0f00+(0xF-CC_CS)*0x1000, "o", 1, SIZE_NONE, 0,
366 cris_eight_bit_offset_branch_op},
369 BDAP_INDIR_OPCODE, BDAP_INDIR_Z_BITS, "pm s,R", 0, SIZE_FIELD_SIGNED,
374 BDAP_QUICK_OPCODE, BDAP_QUICK_Z_BITS, "pO", 0, SIZE_NONE,
376 cris_quick_mode_bdap_prefix},
379 BRANCH_QUICK_OPCODE+CC_EQ*0x1000,
380 0x0f00+(0xF-CC_EQ)*0x1000, "o", 1, SIZE_NONE, 0,
381 cris_eight_bit_offset_branch_op},
383 /* This is deliberately put before "bext" to trump it, even though not
384 in alphabetical order, since we don't do excluding version checks
387 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
388 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
390 cris_eight_bit_offset_branch_op},
393 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
394 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
396 cris_eight_bit_offset_branch_op},
399 BRANCH_QUICK_OPCODE+CC_GE*0x1000,
400 0x0f00+(0xF-CC_GE)*0x1000, "o", 1, SIZE_NONE, 0,
401 cris_eight_bit_offset_branch_op},
404 BRANCH_QUICK_OPCODE+CC_GT*0x1000,
405 0x0f00+(0xF-CC_GT)*0x1000, "o", 1, SIZE_NONE, 0,
406 cris_eight_bit_offset_branch_op},
409 BRANCH_QUICK_OPCODE+CC_HI*0x1000,
410 0x0f00+(0xF-CC_HI)*0x1000, "o", 1, SIZE_NONE, 0,
411 cris_eight_bit_offset_branch_op},
414 BRANCH_QUICK_OPCODE+CC_HS*0x1000,
415 0x0f00+(0xF-CC_HS)*0x1000, "o", 1, SIZE_NONE, 0,
416 cris_eight_bit_offset_branch_op},
418 {"biap", BIAP_OPCODE, BIAP_Z_BITS, "pm r,R", 0, SIZE_NONE,
423 BRANCH_QUICK_OPCODE+CC_LE*0x1000,
424 0x0f00+(0xF-CC_LE)*0x1000, "o", 1, SIZE_NONE, 0,
425 cris_eight_bit_offset_branch_op},
428 BRANCH_QUICK_OPCODE+CC_LO*0x1000,
429 0x0f00+(0xF-CC_LO)*0x1000, "o", 1, SIZE_NONE, 0,
430 cris_eight_bit_offset_branch_op},
433 BRANCH_QUICK_OPCODE+CC_LS*0x1000,
434 0x0f00+(0xF-CC_LS)*0x1000, "o", 1, SIZE_NONE, 0,
435 cris_eight_bit_offset_branch_op},
438 BRANCH_QUICK_OPCODE+CC_LT*0x1000,
439 0x0f00+(0xF-CC_LT)*0x1000, "o", 1, SIZE_NONE, 0,
440 cris_eight_bit_offset_branch_op},
443 BRANCH_QUICK_OPCODE+CC_MI*0x1000,
444 0x0f00+(0xF-CC_MI)*0x1000, "o", 1, SIZE_NONE, 0,
445 cris_eight_bit_offset_branch_op},
447 {"bmod", 0x0ab0, 0x0140, "s,R", 0, SIZE_FIX_32,
449 cris_not_implemented_op},
451 {"bmod", 0x0ab0, 0x0140, "S,D", 0, SIZE_NONE,
453 cris_not_implemented_op},
455 {"bmod", 0x0ab0, 0x0540, "S,R,r", 0, SIZE_NONE,
457 cris_not_implemented_op},
460 BRANCH_QUICK_OPCODE+CC_NE*0x1000,
461 0x0f00+(0xF-CC_NE)*0x1000, "o", 1, SIZE_NONE, 0,
462 cris_eight_bit_offset_branch_op},
464 {"bound", 0x05c0, 0x0A00, "m r,R", 0, SIZE_NONE, 0,
465 cris_two_operand_bound_op},
466 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
467 {"bound", 0x09c0, 0x0200, "m s,R", 0, SIZE_FIELD,
469 cris_two_operand_bound_op},
470 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
471 {"bound", 0x0dcf, 0x0200, "m Y,R", 0, SIZE_FIELD, 0,
472 cris_two_operand_bound_op},
473 {"bound", 0x09c0, 0x0200, "m S,D", 0, SIZE_NONE,
475 cris_two_operand_bound_op},
476 {"bound", 0x09c0, 0x0600, "m S,R,r", 0, SIZE_NONE,
478 cris_three_operand_bound_op},
481 BRANCH_QUICK_OPCODE+CC_PL*0x1000,
482 0x0f00+(0xF-CC_PL)*0x1000, "o", 1, SIZE_NONE, 0,
483 cris_eight_bit_offset_branch_op},
485 {"break", 0xe930, 0x16c0, "C", 0, SIZE_NONE,
490 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
491 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
493 cris_eight_bit_offset_branch_op},
495 {"bsr", 0xBEBF, 0x4140, "n", 0, SIZE_FIX_32,
497 cris_none_reg_mode_jump_op},
499 {"bsrc", 0xBEFF, 0x4100, "n", 0, SIZE_FIX_32,
501 cris_none_reg_mode_jump_op},
503 {"bstore", 0x0af0, 0x0100, "s,R", 0, SIZE_FIX_32,
505 cris_not_implemented_op},
507 {"bstore", 0x0af0, 0x0100, "S,D", 0, SIZE_NONE,
509 cris_not_implemented_op},
511 {"bstore", 0x0af0, 0x0500, "S,R,r", 0, SIZE_NONE,
513 cris_not_implemented_op},
515 {"btst", 0x04F0, 0x0B00, "r,R", 0, SIZE_NONE, 0,
517 {"btstq", 0x0380, 0x0C60, "c,R", 0, SIZE_NONE, 0,
521 BRANCH_QUICK_OPCODE+CC_VC*0x1000,
522 0x0f00+(0xF-CC_VC)*0x1000, "o", 1, SIZE_NONE, 0,
523 cris_eight_bit_offset_branch_op},
526 BRANCH_QUICK_OPCODE+CC_VS*0x1000,
527 0x0f00+(0xF-CC_VS)*0x1000, "o", 1, SIZE_NONE, 0,
528 cris_eight_bit_offset_branch_op},
530 {"clear", 0x0670, 0x3980, "M r", 0, SIZE_NONE, 0,
531 cris_reg_mode_clear_op},
533 {"clear", 0x0A70, 0x3180, "M y", 0, SIZE_NONE, 0,
534 cris_none_reg_mode_clear_test_op},
536 {"clear", 0x0A70, 0x3180, "M S", 0, SIZE_NONE,
538 cris_none_reg_mode_clear_test_op},
540 {"clearf", 0x05F0, 0x0A00, "f", 0, SIZE_NONE, 0,
543 {"cmp", 0x06C0, 0x0900, "m r,R", 0, SIZE_NONE, 0,
544 cris_reg_mode_add_sub_cmp_and_or_move_op},
546 {"cmp", 0x0Ac0, 0x0100, "m s,R", 0, SIZE_FIELD, 0,
547 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
549 {"cmp", 0x0Ac0, 0x0100, "m S,D", 0, SIZE_NONE,
551 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
553 {"cmpq", 0x02C0, 0x0D00, "i,R", 0, SIZE_NONE, 0,
554 cris_quick_mode_and_cmp_move_or_op},
556 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
557 {"cmps", 0x08e0, 0x0300, "z s,R", 0, SIZE_FIELD, 0,
558 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
560 {"cmps", 0x08e0, 0x0300, "z S,D", 0, SIZE_NONE,
562 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
564 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
565 {"cmpu", 0x08c0, 0x0320, "z s,R" , 0, SIZE_FIELD, 0,
566 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
568 {"cmpu", 0x08c0, 0x0320, "z S,D", 0, SIZE_NONE,
570 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
572 {"di", 0x25F0, 0xDA0F, "", 0, SIZE_NONE, 0,
575 {"dip", DIP_OPCODE, DIP_Z_BITS, "ps", 0, SIZE_FIX_32,
579 {"div", 0x0980, 0x0640, "m R,r", 0, SIZE_FIELD, 0,
580 cris_not_implemented_op},
582 {"dstep", 0x06f0, 0x0900, "r,R", 0, SIZE_NONE, 0,
583 cris_dstep_logshift_mstep_neg_not_op},
585 {"ei", 0x25B0, 0xDA4F, "", 0, SIZE_NONE, 0,
588 {"fidxd", 0x0ab0, 0xf540, "[r]", 0, SIZE_NONE,
590 cris_not_implemented_op},
592 {"fidxi", 0x0d30, 0xF2C0, "[r]", 0, SIZE_NONE,
594 cris_not_implemented_op},
596 {"ftagd", 0x1AB0, 0xE540, "[r]", 0, SIZE_NONE,
598 cris_not_implemented_op},
600 {"ftagi", 0x1D30, 0xE2C0, "[r]", 0, SIZE_NONE,
602 cris_not_implemented_op},
604 {"halt", 0xF930, 0x06CF, "", 0, SIZE_NONE,
606 cris_not_implemented_op},
608 {"jas", 0x09B0, 0x0640, "r,P", 0, SIZE_NONE,
610 cris_reg_mode_jump_op},
612 {"jas", 0x0DBF, 0x0240, "N,P", 0, SIZE_FIX_32,
614 cris_reg_mode_jump_op},
616 {"jasc", 0x0B30, 0x04C0, "r,P", 0, SIZE_NONE,
618 cris_reg_mode_jump_op},
620 {"jasc", 0x0F3F, 0x00C0, "N,P", 0, SIZE_FIX_32,
622 cris_reg_mode_jump_op},
624 {"jbrc", 0x69b0, 0x9640, "r", 0, SIZE_NONE,
626 cris_reg_mode_jump_op},
628 {"jbrc", 0x6930, 0x92c0, "s", 0, SIZE_FIX_32,
630 cris_none_reg_mode_jump_op},
632 {"jbrc", 0x6930, 0x92c0, "S", 0, SIZE_NONE,
634 cris_none_reg_mode_jump_op},
636 {"jir", 0xA9b0, 0x5640, "r", 0, SIZE_NONE,
638 cris_reg_mode_jump_op},
640 {"jir", 0xA930, 0x52c0, "s", 0, SIZE_FIX_32,
642 cris_none_reg_mode_jump_op},
644 {"jir", 0xA930, 0x52c0, "S", 0, SIZE_NONE,
646 cris_none_reg_mode_jump_op},
648 {"jirc", 0x29b0, 0xd640, "r", 0, SIZE_NONE,
650 cris_reg_mode_jump_op},
652 {"jirc", 0x2930, 0xd2c0, "s", 0, SIZE_FIX_32,
654 cris_none_reg_mode_jump_op},
656 {"jirc", 0x2930, 0xd2c0, "S", 0, SIZE_NONE,
658 cris_none_reg_mode_jump_op},
660 {"jsr", 0xB9b0, 0x4640, "r", 0, SIZE_NONE, 0,
661 cris_reg_mode_jump_op},
663 {"jsr", 0xB930, 0x42c0, "s", 0, SIZE_FIX_32,
665 cris_none_reg_mode_jump_op},
667 {"jsr", 0xBDBF, 0x4240, "N", 0, SIZE_FIX_32,
669 cris_none_reg_mode_jump_op},
671 {"jsr", 0xB930, 0x42c0, "S", 0, SIZE_NONE,
673 cris_none_reg_mode_jump_op},
675 {"jsrc", 0x39b0, 0xc640, "r", 0, SIZE_NONE,
677 cris_reg_mode_jump_op},
679 {"jsrc", 0x3930, 0xc2c0, "s", 0, SIZE_FIX_32,
681 cris_none_reg_mode_jump_op},
683 {"jsrc", 0x3930, 0xc2c0, "S", 0, SIZE_NONE,
685 cris_none_reg_mode_jump_op},
687 {"jsrc", 0xBB30, 0x44C0, "r", 0, SIZE_NONE,
689 cris_reg_mode_jump_op},
691 {"jsrc", 0xBF3F, 0x40C0, "N", 0, SIZE_FIX_32,
693 cris_reg_mode_jump_op},
695 {"jump", 0x09b0, 0xF640, "r", 0, SIZE_NONE, 0,
696 cris_reg_mode_jump_op},
699 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "s", 0, SIZE_FIX_32,
701 cris_none_reg_mode_jump_op},
704 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "S", 0, SIZE_NONE,
706 cris_none_reg_mode_jump_op},
708 {"jump", 0x09F0, 0x060F, "P", 0, SIZE_NONE,
710 cris_none_reg_mode_jump_op},
713 JUMP_PC_INCR_OPCODE_V32,
714 (0xffff & ~JUMP_PC_INCR_OPCODE_V32), "N", 0, SIZE_FIX_32,
716 cris_none_reg_mode_jump_op},
718 {"jmpu", 0x8930, 0x72c0, "s", 0, SIZE_FIX_32,
720 cris_none_reg_mode_jump_op},
722 {"jmpu", 0x8930, 0x72c0, "S", 0, SIZE_NONE,
724 cris_none_reg_mode_jump_op},
726 {"lapc", 0x0970, 0x0680, "U,R", 0, SIZE_NONE,
728 cris_not_implemented_op},
730 {"lapc", 0x0D7F, 0x0280, "dn,R", 0, SIZE_FIX_32,
732 cris_not_implemented_op},
734 {"lapcq", 0x0970, 0x0680, "u,R", 0, SIZE_NONE,
738 {"lsl", 0x04C0, 0x0B00, "m r,R", 0, SIZE_NONE, 0,
739 cris_dstep_logshift_mstep_neg_not_op},
741 {"lslq", 0x03c0, 0x0C20, "c,R", 0, SIZE_NONE, 0,
742 cris_dstep_logshift_mstep_neg_not_op},
744 {"lsr", 0x07C0, 0x0800, "m r,R", 0, SIZE_NONE, 0,
745 cris_dstep_logshift_mstep_neg_not_op},
747 {"lsrq", 0x03e0, 0x0C00, "c,R", 0, SIZE_NONE, 0,
748 cris_dstep_logshift_mstep_neg_not_op},
750 {"lz", 0x0730, 0x08C0, "r,R", 0, SIZE_NONE,
752 cris_not_implemented_op},
754 {"mcp", 0x07f0, 0x0800, "P,r", 0, SIZE_NONE,
756 cris_not_implemented_op},
758 {"move", 0x0640, 0x0980, "m r,R", 0, SIZE_NONE, 0,
759 cris_reg_mode_add_sub_cmp_and_or_move_op},
761 {"move", 0x0A40, 0x0180, "m s,R", 0, SIZE_FIELD, 0,
762 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
764 {"move", 0x0A40, 0x0180, "m S,D", 0, SIZE_NONE,
766 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
768 {"move", 0x0630, 0x09c0, "r,P", 0, SIZE_NONE, 0,
769 cris_move_to_preg_op},
771 {"move", 0x0670, 0x0980, "P,r", 0, SIZE_NONE, 0,
772 cris_reg_mode_move_from_preg_op},
774 {"move", 0x0BC0, 0x0000, "m R,y", 0, SIZE_FIELD, 0,
775 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
777 {"move", 0x0BC0, 0x0000, "m D,S", 0, SIZE_NONE,
779 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
782 MOVE_M_TO_PREG_OPCODE, MOVE_M_TO_PREG_ZBITS,
783 "s,P", 0, SIZE_SPEC_REG, 0,
784 cris_move_to_preg_op},
786 {"move", 0x0A30, 0x01c0, "S,P", 0, SIZE_NONE,
788 cris_move_to_preg_op},
790 {"move", 0x0A70, 0x0180, "P,y", 0, SIZE_SPEC_REG, 0,
791 cris_none_reg_mode_move_from_preg_op},
793 {"move", 0x0A70, 0x0180, "P,S", 0, SIZE_NONE,
795 cris_none_reg_mode_move_from_preg_op},
797 {"move", 0x0B70, 0x0480, "r,T", 0, SIZE_NONE,
799 cris_not_implemented_op},
801 {"move", 0x0F70, 0x0080, "T,r", 0, SIZE_NONE,
803 cris_not_implemented_op},
805 {"movem", 0x0BF0, 0x0000, "R,y", 0, SIZE_FIX_32, 0,
806 cris_move_reg_to_mem_movem_op},
808 {"movem", 0x0BF0, 0x0000, "D,S", 0, SIZE_NONE,
810 cris_move_reg_to_mem_movem_op},
812 {"movem", 0x0BB0, 0x0040, "s,R", 0, SIZE_FIX_32, 0,
813 cris_move_mem_to_reg_movem_op},
815 {"movem", 0x0BB0, 0x0040, "S,D", 0, SIZE_NONE,
817 cris_move_mem_to_reg_movem_op},
819 {"moveq", 0x0240, 0x0D80, "i,R", 0, SIZE_NONE, 0,
820 cris_quick_mode_and_cmp_move_or_op},
822 {"movs", 0x0460, 0x0B80, "z r,R", 0, SIZE_NONE, 0,
823 cris_reg_mode_add_sub_cmp_and_or_move_op},
825 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
826 {"movs", 0x0860, 0x0380, "z s,R", 0, SIZE_FIELD, 0,
827 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
829 {"movs", 0x0860, 0x0380, "z S,D", 0, SIZE_NONE,
831 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
833 {"movu", 0x0440, 0x0Ba0, "z r,R", 0, SIZE_NONE, 0,
834 cris_reg_mode_add_sub_cmp_and_or_move_op},
836 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
837 {"movu", 0x0840, 0x03a0, "z s,R", 0, SIZE_FIELD, 0,
838 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
840 {"movu", 0x0840, 0x03a0, "z S,D", 0, SIZE_NONE,
842 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
844 {"mstep", 0x07f0, 0x0800, "r,R", 0, SIZE_NONE,
846 cris_dstep_logshift_mstep_neg_not_op},
848 {"muls", 0x0d00, 0x02c0, "m r,R", 0, SIZE_NONE,
852 {"mulu", 0x0900, 0x06c0, "m r,R", 0, SIZE_NONE,
856 {"neg", 0x0580, 0x0A40, "m r,R", 0, SIZE_NONE, 0,
857 cris_dstep_logshift_mstep_neg_not_op},
859 {"nop", NOP_OPCODE, NOP_Z_BITS, "", 0, SIZE_NONE,
863 {"nop", NOP_OPCODE_V32, NOP_Z_BITS_V32, "", 0, SIZE_NONE,
867 {"not", 0x8770, 0x7880, "r", 0, SIZE_NONE, 0,
868 cris_dstep_logshift_mstep_neg_not_op},
870 {"or", 0x0740, 0x0880, "m r,R", 0, SIZE_NONE, 0,
871 cris_reg_mode_add_sub_cmp_and_or_move_op},
873 {"or", 0x0B40, 0x0080, "m s,R", 0, SIZE_FIELD, 0,
874 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
876 {"or", 0x0B40, 0x0080, "m S,D", 0, SIZE_NONE,
878 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
880 {"or", 0x0B40, 0x0480, "m S,R,r", 0, SIZE_NONE,
882 cris_three_operand_add_sub_cmp_and_or_op},
884 {"orq", 0x0340, 0x0C80, "i,R", 0, SIZE_NONE, 0,
885 cris_quick_mode_and_cmp_move_or_op},
887 {"pop", 0x0E6E, 0x0191, "!R", 0, SIZE_NONE,
889 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
891 {"pop", 0x0e3e, 0x01c1, "!P", 0, SIZE_NONE,
893 cris_none_reg_mode_move_from_preg_op},
895 {"push", 0x0FEE, 0x0011, "BR", 0, SIZE_NONE,
897 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
899 {"push", 0x0E7E, 0x0181, "BP", 0, SIZE_NONE,
901 cris_move_to_preg_op},
903 {"rbf", 0x3b30, 0xc0c0, "y", 0, SIZE_NONE,
905 cris_not_implemented_op},
907 {"rbf", 0x3b30, 0xc0c0, "S", 0, SIZE_NONE,
909 cris_not_implemented_op},
911 {"rfe", 0x2930, 0xD6CF, "", 0, SIZE_NONE,
913 cris_not_implemented_op},
915 {"rfg", 0x4930, 0xB6CF, "", 0, SIZE_NONE,
917 cris_not_implemented_op},
919 {"rfn", 0x5930, 0xA6CF, "", 0, SIZE_NONE,
921 cris_not_implemented_op},
923 {"ret", 0xB67F, 0x4980, "", 1, SIZE_NONE,
925 cris_reg_mode_move_from_preg_op},
927 {"ret", 0xB9F0, 0x460F, "", 1, SIZE_NONE,
929 cris_reg_mode_move_from_preg_op},
931 {"retb", 0xe67f, 0x1980, "", 1, SIZE_NONE,
933 cris_reg_mode_move_from_preg_op},
935 {"rete", 0xA9F0, 0x560F, "", 1, SIZE_NONE,
937 cris_reg_mode_move_from_preg_op},
939 {"reti", 0xA67F, 0x5980, "", 1, SIZE_NONE,
941 cris_reg_mode_move_from_preg_op},
943 {"retn", 0xC9F0, 0x360F, "", 1, SIZE_NONE,
945 cris_reg_mode_move_from_preg_op},
947 {"sbfs", 0x3b70, 0xc080, "y", 0, SIZE_NONE,
949 cris_not_implemented_op},
951 {"sbfs", 0x3b70, 0xc080, "S", 0, SIZE_NONE,
953 cris_not_implemented_op},
957 0x0AC0+(0xf-CC_A)*0x1000, "r", 0, SIZE_NONE, 0,
961 0x0530+CC_EXT*0x1000,
962 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
968 0x0AC0+(0xf-CC_CC)*0x1000, "r", 0, SIZE_NONE, 0,
973 0x0AC0+(0xf-CC_CS)*0x1000, "r", 0, SIZE_NONE, 0,
978 0x0AC0+(0xf-CC_EQ)*0x1000, "r", 0, SIZE_NONE, 0,
981 {"setf", 0x05b0, 0x0A40, "f", 0, SIZE_NONE, 0,
984 {"sfe", 0x3930, 0xC6CF, "", 0, SIZE_NONE,
986 cris_not_implemented_op},
988 /* Need to have "swf" in front of "sext" so it is the one displayed in
991 0x0530+CC_EXT*0x1000,
992 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
997 0x0530+CC_EXT*0x1000,
998 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
1003 0x0530+CC_GE*0x1000,
1004 0x0AC0+(0xf-CC_GE)*0x1000, "r", 0, SIZE_NONE, 0,
1008 0x0530+CC_GT*0x1000,
1009 0x0AC0+(0xf-CC_GT)*0x1000, "r", 0, SIZE_NONE, 0,
1013 0x0530+CC_HI*0x1000,
1014 0x0AC0+(0xf-CC_HI)*0x1000, "r", 0, SIZE_NONE, 0,
1018 0x0530+CC_HS*0x1000,
1019 0x0AC0+(0xf-CC_HS)*0x1000, "r", 0, SIZE_NONE, 0,
1023 0x0530+CC_LE*0x1000,
1024 0x0AC0+(0xf-CC_LE)*0x1000, "r", 0, SIZE_NONE, 0,
1028 0x0530+CC_LO*0x1000,
1029 0x0AC0+(0xf-CC_LO)*0x1000, "r", 0, SIZE_NONE, 0,
1033 0x0530+CC_LS*0x1000,
1034 0x0AC0+(0xf-CC_LS)*0x1000, "r", 0, SIZE_NONE, 0,
1038 0x0530+CC_LT*0x1000,
1039 0x0AC0+(0xf-CC_LT)*0x1000, "r", 0, SIZE_NONE, 0,
1043 0x0530+CC_MI*0x1000,
1044 0x0AC0+(0xf-CC_MI)*0x1000, "r", 0, SIZE_NONE, 0,
1048 0x0530+CC_NE*0x1000,
1049 0x0AC0+(0xf-CC_NE)*0x1000, "r", 0, SIZE_NONE, 0,
1053 0x0530+CC_PL*0x1000,
1054 0x0AC0+(0xf-CC_PL)*0x1000, "r", 0, SIZE_NONE, 0,
1057 {"sub", 0x0680, 0x0940, "m r,R", 0, SIZE_NONE, 0,
1058 cris_reg_mode_add_sub_cmp_and_or_move_op},
1060 {"sub", 0x0a80, 0x0140, "m s,R", 0, SIZE_FIELD, 0,
1061 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1063 {"sub", 0x0a80, 0x0140, "m S,D", 0, SIZE_NONE,
1065 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1067 {"sub", 0x0a80, 0x0540, "m S,R,r", 0, SIZE_NONE,
1069 cris_three_operand_add_sub_cmp_and_or_op},
1071 {"subq", 0x0280, 0x0d40, "I,R", 0, SIZE_NONE, 0,
1072 cris_quick_mode_add_sub_op},
1074 {"subs", 0x04a0, 0x0b40, "z r,R", 0, SIZE_NONE, 0,
1075 cris_reg_mode_add_sub_cmp_and_or_move_op},
1077 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
1078 {"subs", 0x08a0, 0x0340, "z s,R", 0, SIZE_FIELD, 0,
1079 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1081 {"subs", 0x08a0, 0x0340, "z S,D", 0, SIZE_NONE,
1083 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1085 {"subs", 0x08a0, 0x0740, "z S,R,r", 0, SIZE_NONE,
1087 cris_three_operand_add_sub_cmp_and_or_op},
1089 {"subu", 0x0480, 0x0b60, "z r,R", 0, SIZE_NONE, 0,
1090 cris_reg_mode_add_sub_cmp_and_or_move_op},
1092 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
1093 {"subu", 0x0880, 0x0360, "z s,R", 0, SIZE_FIELD, 0,
1094 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1096 {"subu", 0x0880, 0x0360, "z S,D", 0, SIZE_NONE,
1098 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1100 {"subu", 0x0880, 0x0760, "z S,R,r", 0, SIZE_NONE,
1102 cris_three_operand_add_sub_cmp_and_or_op},
1105 0x0530+CC_VC*0x1000,
1106 0x0AC0+(0xf-CC_VC)*0x1000, "r", 0, SIZE_NONE, 0,
1110 0x0530+CC_VS*0x1000,
1111 0x0AC0+(0xf-CC_VS)*0x1000, "r", 0, SIZE_NONE, 0,
1114 /* The insn "swapn" is the same as "not" and will be disassembled as
1115 such, but the swap* family of mnmonics are generally v8-and-higher
1116 only, so count it in. */
1117 {"swapn", 0x8770, 0x7880, "r", 0, SIZE_NONE,
1119 cris_not_implemented_op},
1121 {"swapw", 0x4770, 0xb880, "r", 0, SIZE_NONE,
1123 cris_not_implemented_op},
1125 {"swapnw", 0xc770, 0x3880, "r", 0, SIZE_NONE,
1127 cris_not_implemented_op},
1129 {"swapb", 0x2770, 0xd880, "r", 0, SIZE_NONE,
1131 cris_not_implemented_op},
1133 {"swapnb", 0xA770, 0x5880, "r", 0, SIZE_NONE,
1135 cris_not_implemented_op},
1137 {"swapwb", 0x6770, 0x9880, "r", 0, SIZE_NONE,
1139 cris_not_implemented_op},
1141 {"swapnwb", 0xE770, 0x1880, "r", 0, SIZE_NONE,
1143 cris_not_implemented_op},
1145 {"swapr", 0x1770, 0xe880, "r", 0, SIZE_NONE,
1147 cris_not_implemented_op},
1149 {"swapnr", 0x9770, 0x6880, "r", 0, SIZE_NONE,
1151 cris_not_implemented_op},
1153 {"swapwr", 0x5770, 0xa880, "r", 0, SIZE_NONE,
1155 cris_not_implemented_op},
1157 {"swapnwr", 0xd770, 0x2880, "r", 0, SIZE_NONE,
1159 cris_not_implemented_op},
1161 {"swapbr", 0x3770, 0xc880, "r", 0, SIZE_NONE,
1163 cris_not_implemented_op},
1165 {"swapnbr", 0xb770, 0x4880, "r", 0, SIZE_NONE,
1167 cris_not_implemented_op},
1169 {"swapwbr", 0x7770, 0x8880, "r", 0, SIZE_NONE,
1171 cris_not_implemented_op},
1173 {"swapnwbr", 0xf770, 0x0880, "r", 0, SIZE_NONE,
1175 cris_not_implemented_op},
1177 {"test", 0x0640, 0x0980, "m D", 0, SIZE_NONE,
1179 cris_reg_mode_test_op},
1181 {"test", 0x0b80, 0xf040, "m y", 0, SIZE_FIELD, 0,
1182 cris_none_reg_mode_clear_test_op},
1184 {"test", 0x0b80, 0xf040, "m S", 0, SIZE_NONE,
1186 cris_none_reg_mode_clear_test_op},
1188 {"xor", 0x07B0, 0x0840, "r,R", 0, SIZE_NONE, 0,
1191 {NULL, 0, 0, NULL, 0, 0, 0, cris_not_implemented_op}
1194 /* Condition-names, indexed by the CC_* numbers as found in cris.h. */
1213 /* This is a placeholder. In v0, this would be "ext". In v32, this
1220 * eval: (c-set-style "gnu")
1221 * indent-tabs-mode: t
1226 /* No instruction will be disassembled longer than this. In theory, and
1227 in silicon, address prefixes can be cascaded. In practice, cascading
1228 is not used by GCC, and not supported by the assembler. */
1229 #ifndef MAX_BYTES_PER_CRIS_INSN
1230 #define MAX_BYTES_PER_CRIS_INSN 8
1233 /* Whether or not to decode prefixes, folding it into the following
1234 instruction. FIXME: Make this optional later. */
1235 #ifndef PARSE_PREFIX
1236 #define PARSE_PREFIX 1
1239 /* Sometimes we prefix all registers with this character. */
1240 #define REGISTER_PREFIX_CHAR '$'
1242 /* Whether or not to trace the following sequence:
1245 adds.w [pc+r%d.w],pc
1247 This is the assembly form of a switch-statement in C.
1248 The "sub is optional. If there is none, then X will be zero.
1249 X is the value of the first case,
1250 Y is the number of cases (including default).
1252 This results in case offsets printed on the form:
1253 case N: -> case_address
1254 where N is an estimation on the corresponding 'case' operand in C,
1255 and case_address is where execution of that case continues after the
1256 sequence presented above.
1258 The old style of output was to print the offsets as instructions,
1259 which made it hard to follow "case"-constructs in the disassembly,
1260 and caused a lot of annoying warnings about undefined instructions.
1262 FIXME: Make this optional later. */
1264 #define TRACE_CASE (disdata->trace_case)
1267 enum cris_disass_family
1268 { cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 };
1270 /* Stored in the disasm_info->private_data member. */
1271 struct cris_disasm_data
1273 /* Whether to print something less confusing if we find something
1274 matching a switch-construct. */
1275 bfd_boolean trace_case;
1277 /* Whether this code is flagged as crisv32. FIXME: Should be an enum
1278 that includes "compatible". */
1279 enum cris_disass_family distype;
1282 /* Value of first element in switch. */
1283 static long case_offset = 0;
1285 /* How many more case-offsets to print. */
1286 static long case_offset_counter = 0;
1288 /* Number of case offsets. */
1289 static long no_of_case_offsets = 0;
1291 /* Candidate for next case_offset. */
1292 static long last_immediate = 0;
1294 static int cris_constraint
1295 (const char *, unsigned, unsigned, struct cris_disasm_data *);
1297 /* Parse disassembler options and store state in info. FIXME: For the
1298 time being, we abuse static variables. */
1301 cris_parse_disassembler_options (disassemble_info *info,
1302 enum cris_disass_family distype)
1304 struct cris_disasm_data *disdata;
1306 info->private_data = calloc (1, sizeof (struct cris_disasm_data));
1307 disdata = (struct cris_disasm_data *) info->private_data;
1308 if (disdata == NULL)
1313 = (info->disassembler_options == NULL
1314 || (strcmp (info->disassembler_options, "nocase") != 0));
1316 disdata->distype = distype;
1320 static const struct cris_spec_reg *
1321 spec_reg_info (unsigned int sreg, enum cris_disass_family distype)
1325 for (i = 0; cris_spec_regs[i].name != NULL; i++)
1327 if (cris_spec_regs[i].number == sreg)
1329 if (distype == cris_dis_v32)
1330 switch (cris_spec_regs[i].applicable_version)
1332 case cris_ver_warning:
1333 case cris_ver_version_all:
1338 /* No ambiguous sizes or register names with CRISv32. */
1339 if (cris_spec_regs[i].warning == NULL)
1340 return &cris_spec_regs[i];
1344 else if (cris_spec_regs[i].applicable_version != cris_ver_v32p)
1345 return &cris_spec_regs[i];
1352 /* Return the number of bits in the argument. */
1355 number_of_bits (unsigned int val)
1359 for (bits = 0; val != 0; val &= val - 1)
1365 /* Get an entry in the opcode-table. */
1367 static const struct cris_opcode *
1368 get_opcode_entry (unsigned int insn,
1369 unsigned int prefix_insn,
1370 struct cris_disasm_data *disdata)
1372 /* For non-prefixed insns, we keep a table of pointers, indexed by the
1373 insn code. Each entry is initialized when found to be NULL. */
1374 static const struct cris_opcode **opc_table = NULL;
1376 const struct cris_opcode *max_matchedp = NULL;
1377 const struct cris_opcode **prefix_opc_table = NULL;
1379 /* We hold a table for each prefix that need to be handled differently. */
1380 static const struct cris_opcode **dip_prefixes = NULL;
1381 static const struct cris_opcode **bdapq_m1_prefixes = NULL;
1382 static const struct cris_opcode **bdapq_m2_prefixes = NULL;
1383 static const struct cris_opcode **bdapq_m4_prefixes = NULL;
1384 static const struct cris_opcode **rest_prefixes = NULL;
1386 /* Allocate and clear the opcode-table. */
1387 if (opc_table == NULL)
1389 opc_table = g_new0(const struct cris_opcode *, 65536);
1390 dip_prefixes = g_new0(const struct cris_opcode *, 65536);
1391 bdapq_m1_prefixes = g_new0(const struct cris_opcode *, 65536);
1392 bdapq_m2_prefixes = g_new0(const struct cris_opcode *, 65536);
1393 bdapq_m4_prefixes = g_new0(const struct cris_opcode *, 65536);
1394 rest_prefixes = g_new0(const struct cris_opcode *, 65536);
1397 /* Get the right table if this is a prefix.
1398 This code is connected to cris_constraints in that it knows what
1399 prefixes play a role in recognition of patterns; the necessary
1400 state is reflected by which table is used. If constraints
1401 involving match or non-match of prefix insns are changed, then this
1402 probably needs changing too. */
1403 if (prefix_insn != NO_CRIS_PREFIX)
1405 const struct cris_opcode *popcodep
1406 = (opc_table[prefix_insn] != NULL
1407 ? opc_table[prefix_insn]
1408 : get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata));
1410 if (popcodep == NULL)
1413 if (popcodep->match == BDAP_QUICK_OPCODE)
1415 /* Since some offsets are recognized with "push" macros, we
1416 have to have different tables for them. */
1417 int offset = (prefix_insn & 255);
1425 prefix_opc_table = bdapq_m4_prefixes;
1429 prefix_opc_table = bdapq_m2_prefixes;
1433 prefix_opc_table = bdapq_m1_prefixes;
1437 prefix_opc_table = rest_prefixes;
1441 else if (popcodep->match == DIP_OPCODE)
1442 /* We don't allow postincrement when the prefix is DIP, so use a
1443 different table for DIP. */
1444 prefix_opc_table = dip_prefixes;
1446 prefix_opc_table = rest_prefixes;
1449 if (prefix_insn != NO_CRIS_PREFIX
1450 && prefix_opc_table[insn] != NULL)
1451 max_matchedp = prefix_opc_table[insn];
1452 else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL)
1453 max_matchedp = opc_table[insn];
1456 const struct cris_opcode *opcodep;
1457 int max_level_of_match = -1;
1459 for (opcodep = cris_opcodes;
1460 opcodep->name != NULL;
1465 if (disdata->distype == cris_dis_v32)
1467 switch (opcodep->applicable_version)
1469 case cris_ver_version_all:
1473 case cris_ver_v0_10:
1474 case cris_ver_v3_10:
1475 case cris_ver_sim_v0_10:
1476 case cris_ver_v8_10:
1478 case cris_ver_warning:
1495 switch (opcodep->applicable_version)
1497 case cris_ver_version_all:
1500 case cris_ver_v0_10:
1502 case cris_ver_v8_10:
1504 case cris_ver_sim_v0_10:
1506 case cris_ver_warning:
1519 /* We give a double lead for bits matching the template in
1520 cris_opcodes. Not even, because then "move p8,r10" would
1521 be given 2 bits lead over "clear.d r10". When there's a
1522 tie, the first entry in the table wins. This is
1523 deliberate, to avoid a more complicated recognition
1525 if ((opcodep->match & insn) == opcodep->match
1526 && (opcodep->lose & insn) == 0
1528 = cris_constraint (opcodep->args,
1534 += 2 * number_of_bits (opcodep->match
1536 > max_level_of_match))
1538 max_matchedp = opcodep;
1539 max_level_of_match = level_of_match;
1541 /* If there was a full match, never mind looking
1543 if (level_of_match >= 2 * 16)
1547 /* Fill in the new entry.
1549 If there are changes to the opcode-table involving prefixes, and
1550 disassembly then does not work correctly, try removing the
1551 else-clause below that fills in the prefix-table. If that
1552 helps, you need to change the prefix_opc_table setting above, or
1553 something related. */
1554 if (prefix_insn == NO_CRIS_PREFIX)
1555 opc_table[insn] = max_matchedp;
1557 prefix_opc_table[insn] = max_matchedp;
1560 return max_matchedp;
1563 /* Return -1 if the constraints of a bitwise-matched instruction say
1564 that there is no match. Otherwise return a nonnegative number
1565 indicating the confidence in the match (higher is better). */
1568 cris_constraint (const char *cs,
1570 unsigned int prefix_insn,
1571 struct cris_disasm_data *disdata)
1578 for (s = cs; *s; s++)
1582 /* Do not recognize "pop" if there's a prefix and then only for
1584 if (prefix_insn != NO_CRIS_PREFIX
1585 || disdata->distype != cris_dis_v0_v10)
1590 /* Not recognized at disassembly. */
1594 /* Size modifier for "clear", i.e. special register 0, 4 or 8.
1595 Check that it is one of them. Only special register 12 could
1596 be mismatched, but checking for matches is more logical than
1597 checking for mismatches when there are only a few cases. */
1598 tmp = ((insn >> 12) & 0xf);
1599 if (tmp != 0 && tmp != 4 && tmp != 8)
1604 if ((insn & 0x30) == 0x30)
1609 /* A prefix operand without side-effect. */
1610 if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0)
1621 /* If this is a prefixed insn with postincrement (side-effect),
1622 the prefix must not be DIP. */
1623 if (prefix_insn != NO_CRIS_PREFIX)
1627 const struct cris_opcode *prefix_opcodep
1628 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1630 if (prefix_opcodep->match == DIP_OPCODE)
1639 /* If we don't fall through, then the prefix is ok. */
1642 /* A "push" prefix. Check for valid "push" size.
1643 In case of special register, it may be != 4. */
1644 if (prefix_insn != NO_CRIS_PREFIX)
1646 /* Match the prefix insn to BDAPQ. */
1647 const struct cris_opcode *prefix_opcodep
1648 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1650 if (prefix_opcodep->match == BDAP_QUICK_OPCODE)
1652 int pushsize = (prefix_insn & 255);
1659 unsigned int spec_reg = (insn >> 12) & 15;
1660 const struct cris_spec_reg *sregp
1661 = spec_reg_info (spec_reg, disdata->distype);
1663 /* For a special-register, the "prefix size" must
1664 match the size of the register. */
1665 if (sregp && sregp->reg_size == (unsigned int) -pushsize)
1668 else if (s[1] == 'R')
1670 if ((insn & 0x30) == 0x20 && pushsize == -4)
1673 /* FIXME: Should abort here; next constraint letter
1674 *must* be 'P' or 'R'. */
1680 retval = (((insn >> 12) & 15) == (insn & 15));
1689 const struct cris_spec_reg *sregp
1690 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
1692 /* Since we match four bits, we will give a value of 4-1 = 3
1693 in a match. If there is a corresponding exact match of a
1694 special register in another pattern, it will get a value of
1695 4, which will be higher. This should be correct in that an
1696 exact pattern would match better than a general pattern.
1698 Note that there is a reason for not returning zero; the
1699 pattern for "clear" is partly matched in the bit-pattern
1700 (the two lower bits must be zero), while the bit-pattern
1701 for a move from a special register is matched in the
1702 register constraint. */
1714 if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok)
1720 /* Format number as hex with a leading "0x" into outbuffer. */
1723 format_hex (unsigned long number,
1725 struct cris_disasm_data *disdata)
1727 /* Truncate negative numbers on >32-bit hosts. */
1728 number &= 0xffffffff;
1730 sprintf (outbuffer, "0x%lx", number);
1732 /* Save this value for the "case" support. */
1734 last_immediate = number;
1736 return outbuffer + strlen (outbuffer);
1739 /* Format number as decimal into outbuffer. Parameter signedp says
1740 whether the number should be formatted as signed (!= 0) or
1744 format_dec (long number, char *outbuffer, int signedp)
1746 last_immediate = number;
1747 sprintf (outbuffer, signedp ? "%ld" : "%lu", number);
1749 return outbuffer + strlen (outbuffer);
1752 /* Format the name of the general register regno into outbuffer. */
1755 format_reg (struct cris_disasm_data *disdata,
1757 char *outbuffer_start,
1758 bfd_boolean with_reg_prefix)
1760 char *outbuffer = outbuffer_start;
1762 if (with_reg_prefix)
1763 *outbuffer++ = REGISTER_PREFIX_CHAR;
1768 /* For v32, there is no context in which we output PC. */
1769 if (disdata->distype == cris_dis_v32)
1770 strcpy (outbuffer, "acr");
1772 strcpy (outbuffer, "pc");
1776 strcpy (outbuffer, "sp");
1780 sprintf (outbuffer, "r%d", regno);
1784 return outbuffer_start + strlen (outbuffer_start);
1787 /* Format the name of a support register into outbuffer. */
1790 format_sup_reg (unsigned int regno,
1791 char *outbuffer_start,
1792 bfd_boolean with_reg_prefix)
1794 char *outbuffer = outbuffer_start;
1797 if (with_reg_prefix)
1798 *outbuffer++ = REGISTER_PREFIX_CHAR;
1800 for (i = 0; cris_support_regs[i].name != NULL; i++)
1801 if (cris_support_regs[i].number == regno)
1803 sprintf (outbuffer, "%s", cris_support_regs[i].name);
1804 return outbuffer_start + strlen (outbuffer_start);
1807 /* There's supposed to be register names covering all numbers, though
1808 some may be generic names. */
1809 sprintf (outbuffer, "format_sup_reg-BUG");
1810 return outbuffer_start + strlen (outbuffer_start);
1813 /* Return the length of an instruction. */
1816 bytes_to_skip (unsigned int insn,
1817 const struct cris_opcode *matchedp,
1818 enum cris_disass_family distype,
1819 const struct cris_opcode *prefix_matchedp)
1821 /* Each insn is a word plus "immediate" operands. */
1822 unsigned to_skip = 2;
1823 const char *template = matchedp->args;
1826 for (s = template; *s; s++)
1827 if ((*s == 's' || *s == 'N' || *s == 'Y')
1828 && (insn & 0x400) && (insn & 15) == 15
1829 && prefix_matchedp == NULL)
1831 /* Immediate via [pc+], so we have to check the size of the
1833 int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3));
1835 if (matchedp->imm_oprnd_size == SIZE_FIX_32)
1837 else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG)
1839 const struct cris_spec_reg *sregp
1840 = spec_reg_info ((insn >> 12) & 15, distype);
1842 /* FIXME: Improve error handling; should have been caught
1847 /* PC is incremented by two, not one, for a byte. Except on
1848 CRISv32, where constants are always DWORD-size for
1849 special registers. */
1851 distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1;
1854 to_skip += (mode_size + 1) & ~1;
1864 /* Print condition code flags. */
1867 print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp)
1869 /* Use the v8 (Etrax 100) flag definitions for disassembly.
1870 The differences with v0 (Etrax 1..4) vs. Svinto are:
1873 FIXME: Emit v0..v3 flag names somehow. */
1874 static const char v8_fnames[] = "cvznxibm";
1875 static const char v32_fnames[] = "cvznxiup";
1877 = disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames;
1879 unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15));
1882 for (i = 0; i < 8; i++)
1883 if (flagbits & (1 << i))
1889 /* Print out an insn with its operands, and update the info->insn_type
1890 fields. The prefix_opcodep and the rest hold a prefix insn that is
1891 supposed to be output as an address mode. */
1894 print_with_operands (const struct cris_opcode *opcodep,
1896 unsigned char *buffer,
1898 disassemble_info *info,
1899 /* If a prefix insn was before this insn (and is supposed
1900 to be output as an address), here is a description of
1902 const struct cris_opcode *prefix_opcodep,
1903 unsigned int prefix_insn,
1904 unsigned char *prefix_buffer,
1905 bfd_boolean with_reg_prefix)
1907 /* Get a buffer of somewhat reasonable size where we store
1908 intermediate parts of the insn. */
1909 char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2];
1911 static const char mode_char[] = "bwd?";
1914 struct cris_disasm_data *disdata
1915 = (struct cris_disasm_data *) info->private_data;
1917 /* Print out the name first thing we do. */
1918 (*info->fprintf_func) (info->stream, "%s", opcodep->name);
1923 /* Ignore any prefix indicator. */
1927 if (*s == 'm' || *s == 'M' || *s == 'z')
1931 /* Get the size-letter. */
1933 ? (insn & 0x8000 ? 'd'
1934 : insn & 0x4000 ? 'w' : 'b')
1935 : mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)];
1937 /* Ignore the size and the space character that follows. */
1941 /* Add a space if this isn't a long-branch, because for those will add
1942 the condition part of the name later. */
1943 if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256))
1946 /* Fill in the insn-type if deducible from the name (and there's no
1948 if (opcodep->name[0] == 'j')
1950 if (CONST_STRNEQ (opcodep->name, "jsr"))
1951 /* It's "jsr" or "jsrc". */
1952 info->insn_type = dis_jsr;
1954 /* Any other jump-type insn is considered a branch. */
1955 info->insn_type = dis_branch;
1958 /* We might know some more fields right now. */
1959 info->branch_delay_insns = opcodep->delayed;
1961 /* Handle operands. */
1967 tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix);
1971 if (with_reg_prefix)
1972 *tp++ = REGISTER_PREFIX_CHAR;
1985 /* Ignore at this point; used at earlier stages to avoid
1986 recognition if there's a prefix at something that in other
1987 ways looks like a "pop". */
1991 /* Ignore. This is an optional ".d " on the large one of
1996 /* This was the prefix that made this a "push". We've already
1997 handled it by recognizing it, so signal that the prefix is
1998 handled by setting it to NULL. */
1999 prefix_opcodep = NULL;
2004 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2008 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2013 /* Like N but pc-relative to the start of the insn. */
2014 unsigned long number
2015 = (buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2016 + buffer[5] * 0x1000000 + addr);
2018 /* Finish off and output previous formatted bytes. */
2021 (*info->fprintf_func) (info->stream, "%s", temp);
2024 (*info->print_address_func) ((bfd_vma) number, info);
2030 /* Like n but the offset is bits <3:0> in the instruction. */
2031 unsigned long number = (buffer[0] & 0xf) * 2 + addr;
2033 /* Finish off and output previous formatted bytes. */
2036 (*info->fprintf_func) (info->stream, "%s", temp);
2039 (*info->print_address_func) ((bfd_vma) number, info);
2048 /* Any "normal" memory operand. */
2049 if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL)
2051 /* We're looking at [pc+], i.e. we need to output an immediate
2052 number, where the size can depend on different things. */
2055 = ((*cs == 'z' && (insn & 0x20))
2056 || opcodep->match == BDAP_QUICK_OPCODE);
2059 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2061 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2063 const struct cris_spec_reg *sregp
2064 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2066 /* A NULL return should have been as a non-match earlier,
2067 so catch it as an internal error in the error-case
2070 /* Whatever non-valid size. */
2073 /* PC is always incremented by a multiple of two.
2074 For CRISv32, immediates are always 4 bytes for
2075 special registers. */
2076 nbytes = disdata->distype == cris_dis_v32
2077 ? 4 : (sregp->reg_size + 1) & ~1;
2081 int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3));
2093 if (signedp && number > 127)
2098 number = buffer[2] + buffer[3] * 256;
2099 if (signedp && number > 32767)
2105 = buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2106 + buffer[5] * 0x1000000;
2115 if ((*cs == 'z' && (insn & 0x20))
2116 || (opcodep->match == BDAP_QUICK_OPCODE
2117 && (nbytes <= 2 || buffer[1 + nbytes] == 0)))
2118 tp = format_dec (number, tp, signedp);
2121 unsigned int highbyte = (number >> 24) & 0xff;
2123 /* Either output this as an address or as a number. If it's
2124 a dword with the same high-byte as the address of the
2125 insn, assume it's an address, and also if it's a non-zero
2126 non-0xff high-byte. If this is a jsr or a jump, then
2127 it's definitely an address. */
2129 && (highbyte == ((addr >> 24) & 0xff)
2130 || (highbyte != 0 && highbyte != 0xff)
2131 || info->insn_type == dis_branch
2132 || info->insn_type == dis_jsr))
2134 /* Finish off and output previous formatted bytes. */
2138 (*info->fprintf_func) (info->stream, "%s", temp);
2140 (*info->print_address_func) ((bfd_vma) number, info);
2142 info->target = number;
2145 tp = format_hex (number, tp, disdata);
2150 /* Not an immediate number. Then this is a (possibly
2151 prefixed) memory operand. */
2152 if (info->insn_type != dis_nonbranch)
2156 & (opcodep->args[0] == 'z' ? 1 : 3));
2158 info->insn_type = dis_dref;
2159 info->flags |= CRIS_DIS_FLAG_MEMREF;
2161 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2163 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2165 const struct cris_spec_reg *sregp
2166 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2168 /* FIXME: Improve error handling; should have been caught
2173 size = sregp->reg_size;
2178 info->data_size = size;
2184 /* We don't match dip with a postincremented field
2185 as a side-effect address mode. */
2186 && ((insn & 0x400) == 0
2187 || prefix_opcodep->match != DIP_OPCODE))
2191 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2196 /* We mainly ignore the prefix format string when the
2197 address-mode syntax is output. */
2198 switch (prefix_opcodep->match)
2201 /* It's [r], [r+] or [pc+]. */
2202 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2204 /* It's [pc+]. This cannot possibly be anything
2206 unsigned long number
2207 = prefix_buffer[2] + prefix_buffer[3] * 256
2208 + prefix_buffer[4] * 65536
2209 + prefix_buffer[5] * 0x1000000;
2211 info->target = (bfd_vma) number;
2213 /* Finish off and output previous formatted
2218 (*info->fprintf_func) (info->stream, "%s", temp);
2220 (*info->print_address_func) ((bfd_vma) number, info);
2224 /* For a memref in an address, we use target2.
2225 In this case, target is zero. */
2227 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2228 | CRIS_DIS_FLAG_MEM_TARGET2_MEM);
2230 info->target2 = prefix_insn & 15;
2233 tp = format_reg (disdata, prefix_insn & 15, tp,
2235 if (prefix_insn & 0x400)
2241 case BDAP_QUICK_OPCODE:
2245 number = prefix_buffer[0];
2249 /* Output "reg+num" or, if num < 0, "reg-num". */
2250 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2254 tp = format_dec (number, tp, 1);
2256 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2257 info->target = (prefix_insn >> 12) & 15;
2258 info->target2 = (bfd_vma) number;
2263 /* Output "r+R.m". */
2264 tp = format_reg (disdata, prefix_insn & 15, tp,
2267 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2270 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2273 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2274 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2276 | ((prefix_insn & 0x8000)
2277 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT4
2278 : ((prefix_insn & 0x8000)
2279 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0)));
2281 /* Is it the casejump? It's a "adds.w [pc+r%d.w],pc". */
2282 if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f)
2283 /* Then start interpreting data as offsets. */
2284 case_offset_counter = no_of_case_offsets;
2287 case BDAP_INDIR_OPCODE:
2288 /* Output "r+s.m", or, if "s" is [pc+], "r+s" or
2290 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2293 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2296 unsigned int nbytes;
2298 /* It's a value. Get its size. */
2299 int mode_size = 1 << ((prefix_insn >> 4) & 3);
2309 number = prefix_buffer[2];
2315 number = prefix_buffer[2] + prefix_buffer[3] * 256;
2322 = prefix_buffer[2] + prefix_buffer[3] * 256
2323 + prefix_buffer[4] * 65536
2324 + prefix_buffer[5] * 0x1000000;
2333 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2334 info->target2 = (bfd_vma) number;
2336 /* If the size is dword, then assume it's an
2340 /* Finish off and output previous formatted
2345 (*info->fprintf_func) (info->stream, "%s", temp);
2347 (*info->print_address_func) ((bfd_vma) number, info);
2353 tp = format_dec (number, tp, 1);
2358 /* Output "r+[R].m" or "r+[R+].m". */
2361 tp = format_reg (disdata, prefix_insn & 15, tp,
2363 if (prefix_insn & 0x400)
2367 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2370 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2371 | CRIS_DIS_FLAG_MEM_TARGET2_MEM
2372 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2374 | (((prefix_insn >> 4) == 2)
2376 : (((prefix_insn >> 4) & 3) == 1
2377 ? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD
2378 : CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE)));
2383 (*info->fprintf_func) (info->stream, "?prefix-bug");
2386 /* To mark that the prefix is used, reset it. */
2387 prefix_opcodep = NULL;
2391 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2393 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2394 info->target = insn & 15;
2404 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2406 *tp++ = mode_char[(insn >> 4) & 3];
2410 tp = format_dec (insn & 63, tp, 0);
2415 int where = buffer[2] + buffer[3] * 256;
2420 where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4);
2422 if (insn == BA_PC_INCR_OPCODE)
2423 info->insn_type = dis_branch;
2425 info->insn_type = dis_condbranch;
2427 info->target = (bfd_vma) where;
2431 (*info->fprintf_func) (info->stream, "%s%s ",
2432 temp, cris_cc_strings[insn >> 12]);
2434 (*info->print_address_func) ((bfd_vma) where, info);
2439 tp = format_dec (insn & 31, tp, 0);
2443 tp = format_dec (insn & 15, tp, 0);
2448 long offset = insn & 0xfe;
2454 if (opcodep->match == BA_QUICK_OPCODE)
2455 info->insn_type = dis_branch;
2457 info->insn_type = dis_condbranch;
2459 target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset;
2460 info->target = target;
2463 (*info->fprintf_func) (info->stream, "%s", temp);
2464 (*info->print_address_func) (target, info);
2471 long number = buffer[0];
2474 number = number - 256;
2476 tp = format_dec (number, tp, 1);
2478 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2483 tp = print_flags (disdata, insn, tp);
2487 tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1);
2492 const struct cris_spec_reg *sregp
2493 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2495 if (sregp->name == NULL)
2496 /* Should have been caught as a non-match earlier. */
2500 if (with_reg_prefix)
2501 *tp++ = REGISTER_PREFIX_CHAR;
2502 strcpy (tp, sregp->name);
2517 (*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")",
2518 prefix_opcodep->name, prefix_opcodep->args);
2520 (*info->fprintf_func) (info->stream, "%s", temp);
2522 /* Get info for matching case-tables, if we don't have any active.
2523 We assume that the last constant seen is used; either in the insn
2524 itself or in a "move.d const,rN, sub.d rN,rM"-like sequence. */
2525 if (TRACE_CASE && case_offset_counter == 0)
2527 if (CONST_STRNEQ (opcodep->name, "sub"))
2528 case_offset = last_immediate;
2530 /* It could also be an "add", if there are negative case-values. */
2531 else if (CONST_STRNEQ (opcodep->name, "add"))
2532 /* The first case is the negated operand to the add. */
2533 case_offset = -last_immediate;
2535 /* A bound insn will tell us the number of cases. */
2536 else if (CONST_STRNEQ (opcodep->name, "bound"))
2537 no_of_case_offsets = last_immediate + 1;
2539 /* A jump or jsr or branch breaks the chain of insns for a
2540 case-table, so assume default first-case again. */
2541 else if (info->insn_type == dis_jsr
2542 || info->insn_type == dis_branch
2543 || info->insn_type == dis_condbranch)
2549 /* Print the CRIS instruction at address memaddr on stream. Returns
2550 length of the instruction, in bytes. Prefix register names with `$' if
2554 print_insn_cris_generic (bfd_vma memaddr,
2555 disassemble_info *info,
2556 bfd_boolean with_reg_prefix)
2560 const struct cris_opcode *matchedp;
2562 struct cris_disasm_data *disdata
2563 = (struct cris_disasm_data *) info->private_data;
2565 /* No instruction will be disassembled as longer than this number of
2566 bytes; stacked prefixes will not be expanded. */
2567 unsigned char buffer[MAX_BYTES_PER_CRIS_INSN];
2568 unsigned char *bufp;
2572 /* There will be an "out of range" error after the last instruction.
2573 Reading pairs of bytes in decreasing number, we hope that we will get
2574 at least the amount that we will consume.
2576 If we can't get any data, or we do not get enough data, we print
2577 the error message. */
2579 nbytes = info->buffer_length ? info->buffer_length
2580 : MAX_BYTES_PER_CRIS_INSN;
2581 nbytes = MIN(nbytes, MAX_BYTES_PER_CRIS_INSN);
2582 status = (*info->read_memory_func) (memaddr, buffer, nbytes, info);
2584 /* If we did not get all we asked for, then clear the rest.
2585 Hopefully this makes a reproducible result in case of errors. */
2586 if (nbytes != MAX_BYTES_PER_CRIS_INSN)
2587 memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes);
2592 /* Set some defaults for the insn info. */
2593 info->insn_info_valid = 1;
2594 info->branch_delay_insns = 0;
2595 info->data_size = 0;
2596 info->insn_type = dis_nonbranch;
2601 /* If we got any data, disassemble it. */
2606 insn = bufp[0] + bufp[1] * 256;
2608 /* If we're in a case-table, don't disassemble the offsets. */
2609 if (TRACE_CASE && case_offset_counter != 0)
2611 info->insn_type = dis_noninsn;
2614 /* If to print data as offsets, then shortcut here. */
2615 (*info->fprintf_func) (info->stream, "case %ld%s: -> ",
2616 case_offset + no_of_case_offsets
2617 - case_offset_counter,
2618 case_offset_counter == 1 ? "/default" :
2621 (*info->print_address_func) ((bfd_vma)
2624 - (no_of_case_offsets
2625 - case_offset_counter)
2627 case_offset_counter--;
2629 /* The default case start (without a "sub" or "add") must be
2631 if (case_offset_counter == 0)
2636 /* We're often called to disassemble zeroes. While this is a
2637 valid "bcc .+2" insn, it is also useless enough and enough
2638 of a nuiscance that we will just output "bcc .+2" for it
2639 and signal it as a noninsn. */
2640 (*info->fprintf_func) (info->stream,
2641 disdata->distype == cris_dis_v32
2642 ? "bcc ." : "bcc .+2");
2643 info->insn_type = dis_noninsn;
2648 const struct cris_opcode *prefix_opcodep = NULL;
2649 unsigned char *prefix_buffer = bufp;
2650 unsigned int prefix_insn = insn;
2651 int prefix_size = 0;
2653 matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata);
2655 /* Check if we're supposed to write out prefixes as address
2656 modes and if this was a prefix. */
2657 if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p')
2659 /* If it's a prefix, put it into the prefix vars and get the
2661 prefix_size = bytes_to_skip (prefix_insn, matchedp,
2662 disdata->distype, NULL);
2663 prefix_opcodep = matchedp;
2665 insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256;
2666 matchedp = get_opcode_entry (insn, prefix_insn, disdata);
2668 if (matchedp != NULL)
2670 addr += prefix_size;
2671 bufp += prefix_size;
2672 advance += prefix_size;
2676 /* The "main" insn wasn't valid, at least not when
2677 prefixed. Put back things enough to output the
2678 prefix insn only, as a normal insn. */
2679 matchedp = prefix_opcodep;
2681 prefix_opcodep = NULL;
2685 if (matchedp == NULL)
2687 (*info->fprintf_func) (info->stream, "??0x%x", insn);
2690 info->insn_type = dis_noninsn;
2695 += bytes_to_skip (insn, matchedp, disdata->distype,
2698 /* The info_type and assorted fields will be set according
2700 print_with_operands (matchedp, insn, bufp, addr, info,
2701 prefix_opcodep, prefix_insn,
2702 prefix_buffer, with_reg_prefix);
2707 info->insn_type = dis_noninsn;
2709 /* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error
2710 status when reading that much, and the insn decoding indicated a
2711 length exceeding what we read, there is an error. */
2712 if (status != 0 && (nbytes == 0 || advance > nbytes))
2714 (*info->memory_error_func) (status, memaddr, info);
2718 /* Max supported insn size with one folded prefix insn. */
2719 info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN;
2721 /* I would like to set this to a fixed value larger than the actual
2722 number of bytes to print in order to avoid spaces between bytes,
2723 but objdump.c (2.9.1) does not like that, so we print 16-bit
2724 chunks, which is the next choice. */
2725 info->bytes_per_chunk = 2;
2727 /* Printing bytes in order of increasing addresses makes sense,
2728 especially on a little-endian target.
2729 This is completely the opposite of what you think; setting this to
2730 BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N
2732 info->display_endian = BFD_ENDIAN_BIG;
2737 /* Disassemble, prefixing register names with `$'. CRIS v0..v10. */
2739 print_insn_cris_with_register_prefix (bfd_vma vma,
2740 disassemble_info *info)
2742 if (info->private_data == NULL
2743 && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
2745 return print_insn_cris_generic (vma, info, true);
2747 /* Disassemble, prefixing register names with `$'. CRIS v32. */
2750 print_insn_crisv32_with_register_prefix (bfd_vma vma,
2751 disassemble_info *info)
2753 if (info->private_data == NULL
2754 && !cris_parse_disassembler_options (info, cris_dis_v32))
2756 return print_insn_cris_generic (vma, info, true);
2760 /* Disassemble, prefixing register names with `$'.
2761 Common v10 and v32 subset. */
2764 print_insn_crisv10_v32_with_register_prefix (bfd_vma vma,
2765 disassemble_info *info)
2767 if (info->private_data == NULL
2768 && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
2770 return print_insn_cris_generic (vma, info, true);
2773 /* Disassemble, no prefixes on register names. CRIS v0..v10. */
2776 print_insn_cris_without_register_prefix (bfd_vma vma,
2777 disassemble_info *info)
2779 if (info->private_data == NULL
2780 && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
2782 return print_insn_cris_generic (vma, info, false);
2785 /* Disassemble, no prefixes on register names. CRIS v32. */
2788 print_insn_crisv32_without_register_prefix (bfd_vma vma,
2789 disassemble_info *info)
2791 if (info->private_data == NULL
2792 && !cris_parse_disassembler_options (info, cris_dis_v32))
2794 return print_insn_cris_generic (vma, info, false);
2797 /* Disassemble, no prefixes on register names.
2798 Common v10 and v32 subset. */
2801 print_insn_crisv10_v32_without_register_prefix (bfd_vma vma,
2802 disassemble_info *info)
2804 if (info->private_data == NULL
2805 && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
2807 return print_insn_cris_generic (vma, info, false);
2812 print_insn_crisv10 (bfd_vma vma,
2813 disassemble_info *info)
2815 return print_insn_cris_with_register_prefix(vma, info);
2819 print_insn_crisv32 (bfd_vma vma,
2820 disassemble_info *info)
2822 return print_insn_crisv32_with_register_prefix(vma, info);
2825 /* Return a disassembler-function that prints registers with a `$' prefix,
2826 or one that prints registers without a prefix.
2827 FIXME: We should improve the solution to avoid the multitude of
2828 functions seen above. */
2831 cris_get_disassembler (bfd *abfd)
2833 /* If there's no bfd in sight, we return what is valid as input in all
2834 contexts if fed back to the assembler: disassembly *with* register
2835 prefix. Unfortunately this will be totally wrong for v32. */
2837 return print_insn_cris_with_register_prefix;
2839 if (bfd_get_symbol_leading_char (abfd) == 0)
2841 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2842 return print_insn_crisv32_with_register_prefix;
2843 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2844 return print_insn_crisv10_v32_with_register_prefix;
2846 /* We default to v10. This may be specifically specified in the
2847 bfd mach, but is also the default setting. */
2848 return print_insn_cris_with_register_prefix;
2851 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2852 return print_insn_crisv32_without_register_prefix;
2853 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2854 return print_insn_crisv10_v32_without_register_prefix;
2855 return print_insn_cris_without_register_prefix;
2859 eval: (c-set-style "gnu")