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Avoid implicit truncation compiler warnings
[qemu/mini2440.git] / cris-dis.c
blobba6990758c9c7a68a673d066d6c3fa687fed4611
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
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
22
23 #include "dis-asm.h"
24 //#include "sysdep.h"
25 #include "target-cris/opcode-cris.h"
26 //#include "libiberty.h"
27 \f
28
29 void *qemu_malloc(size_t len); /* can't include qemu-common.h here */
30
31 #define FALSE 0
32 #define TRUE 1
33 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0)
34
35 /* cris-opc.c -- Table of opcodes for the CRIS processor.
36 Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
37 Contributed by Axis Communications AB, Lund, Sweden.
38 Originally written for GAS 1.38.1 by Mikael Asker.
39 Reorganized by Hans-Peter Nilsson.
40
41 This file is part of GAS, GDB and the GNU binutils.
42
43 GAS, GDB, and GNU binutils is free software; you can redistribute it
44 and/or modify it under the terms of the GNU General Public License as
45 published by the Free Software Foundation; either version 2, or (at your
46 option) any later version.
47
48 GAS, GDB, and GNU binutils are distributed in the hope that they will be
49 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
50 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
51 GNU General Public License for more details.
52
53 You should have received a copy of the GNU General Public License
54 along with this program; if not, write to the Free Software
55 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
56
57 #ifndef NULL
58 #define NULL (0)
59 #endif
60
61 /* This table isn't used for CRISv32 and the size of immediate operands. */
62 const struct cris_spec_reg
63 cris_spec_regs[] =
64 {
65 {"bz", 0, 1, cris_ver_v32p, NULL},
66 {"p0", 0, 1, 0, NULL},
67 {"vr", 1, 1, 0, NULL},
68 {"p1", 1, 1, 0, NULL},
69 {"pid", 2, 1, cris_ver_v32p, NULL},
70 {"p2", 2, 1, cris_ver_v32p, NULL},
71 {"p2", 2, 1, cris_ver_warning, NULL},
72 {"srs", 3, 1, cris_ver_v32p, NULL},
73 {"p3", 3, 1, cris_ver_v32p, NULL},
74 {"p3", 3, 1, cris_ver_warning, NULL},
75 {"wz", 4, 2, cris_ver_v32p, NULL},
76 {"p4", 4, 2, 0, NULL},
77 {"ccr", 5, 2, cris_ver_v0_10, NULL},
78 {"exs", 5, 4, cris_ver_v32p, NULL},
79 {"p5", 5, 2, cris_ver_v0_10, NULL},
80 {"p5", 5, 4, cris_ver_v32p, NULL},
81 {"dcr0",6, 2, cris_ver_v0_3, NULL},
82 {"eda", 6, 4, cris_ver_v32p, NULL},
83 {"p6", 6, 2, cris_ver_v0_3, NULL},
84 {"p6", 6, 4, cris_ver_v32p, NULL},
85 {"dcr1/mof", 7, 4, cris_ver_v10p,
86 "Register `dcr1/mof' with ambiguous size specified. Guessing 4 bytes"},
87 {"dcr1/mof", 7, 2, cris_ver_v0_3,
88 "Register `dcr1/mof' with ambiguous size specified. Guessing 2 bytes"},
89 {"mof", 7, 4, cris_ver_v10p, NULL},
90 {"dcr1",7, 2, cris_ver_v0_3, NULL},
91 {"p7", 7, 4, cris_ver_v10p, NULL},
92 {"p7", 7, 2, cris_ver_v0_3, NULL},
93 {"dz", 8, 4, cris_ver_v32p, NULL},
94 {"p8", 8, 4, 0, NULL},
95 {"ibr", 9, 4, cris_ver_v0_10, NULL},
96 {"ebp", 9, 4, cris_ver_v32p, NULL},
97 {"p9", 9, 4, 0, NULL},
98 {"irp", 10, 4, cris_ver_v0_10, NULL},
99 {"erp", 10, 4, cris_ver_v32p, NULL},
100 {"p10", 10, 4, 0, NULL},
101 {"srp", 11, 4, 0, NULL},
102 {"p11", 11, 4, 0, NULL},
103 /* For disassembly use only. Accept at assembly with a warning. */
104 {"bar/dtp0", 12, 4, cris_ver_warning,
105 "Ambiguous register `bar/dtp0' specified"},
106 {"nrp", 12, 4, cris_ver_v32p, NULL},
107 {"bar", 12, 4, cris_ver_v8_10, NULL},
108 {"dtp0",12, 4, cris_ver_v0_3, NULL},
109 {"p12", 12, 4, 0, NULL},
110 /* For disassembly use only. Accept at assembly with a warning. */
111 {"dccr/dtp1",13, 4, cris_ver_warning,
112 "Ambiguous register `dccr/dtp1' specified"},
113 {"ccs", 13, 4, cris_ver_v32p, NULL},
114 {"dccr",13, 4, cris_ver_v8_10, NULL},
115 {"dtp1",13, 4, cris_ver_v0_3, NULL},
116 {"p13", 13, 4, 0, NULL},
117 {"brp", 14, 4, cris_ver_v3_10, NULL},
118 {"usp", 14, 4, cris_ver_v32p, NULL},
119 {"p14", 14, 4, cris_ver_v3p, NULL},
120 {"usp", 15, 4, cris_ver_v10, NULL},
121 {"spc", 15, 4, cris_ver_v32p, NULL},
122 {"p15", 15, 4, cris_ver_v10p, NULL},
123 {NULL, 0, 0, cris_ver_version_all, NULL}
124 };
125
126 /* Add version specifiers to this table when necessary.
127 The (now) regular coding of register names suggests a simpler
128 implementation. */
129 const struct cris_support_reg cris_support_regs[] =
130 {
131 {"s0", 0},
132 {"s1", 1},
133 {"s2", 2},
134 {"s3", 3},
135 {"s4", 4},
136 {"s5", 5},
137 {"s6", 6},
138 {"s7", 7},
139 {"s8", 8},
140 {"s9", 9},
141 {"s10", 10},
142 {"s11", 11},
143 {"s12", 12},
144 {"s13", 13},
145 {"s14", 14},
146 {"s15", 15},
147 {NULL, 0}
148 };
149
150 /* All CRIS opcodes are 16 bits.
151
152 - The match component is a mask saying which bits must match a
153 particular opcode in order for an instruction to be an instance
154 of that opcode.
155
156 - The args component is a string containing characters symbolically
157 matching the operands of an instruction. Used for both assembly
158 and disassembly.
159
160 Operand-matching characters:
161 [ ] , space
162 Verbatim.
163 A The string "ACR" (case-insensitive).
164 B Not really an operand. It causes a "BDAP -size,SP" prefix to be
165 output for the PUSH alias-instructions and recognizes a push-
166 prefix at disassembly. This letter isn't recognized for v32.
167 Must be followed by a R or P letter.
168 ! Non-match pattern, will not match if there's a prefix insn.
169 b Non-matching operand, used for branches with 16-bit
170 displacement. Only recognized by the disassembler.
171 c 5-bit unsigned immediate in bits <4:0>.
172 C 4-bit unsigned immediate in bits <3:0>.
173 d At assembly, optionally (as in put other cases before this one)
174 ".d" or ".D" at the start of the operands, followed by one space
175 character. At disassembly, nothing.
176 D General register in bits <15:12> and <3:0>.
177 f List of flags in bits <15:12> and <3:0>.
178 i 6-bit signed immediate in bits <5:0>.
179 I 6-bit unsigned immediate in bits <5:0>.
180 M Size modifier (B, W or D) for CLEAR instructions.
181 m Size modifier (B, W or D) in bits <5:4>
182 N A 32-bit dword, like in the difference between s and y.
183 This has no effect on bits in the opcode. Can also be expressed
184 as "[pc+]" in input.
185 n As N, but PC-relative (to the start of the instruction).
186 o [-128..127] word offset in bits <7:1> and <0>. Used by 8-bit
187 branch instructions.
188 O [-128..127] offset in bits <7:0>. Also matches a comma and a
189 general register after the expression, in bits <15:12>. Used
190 only for the BDAP prefix insn (in v32 the ADDOQ insn; same opcode).
191 P Special register in bits <15:12>.
192 p Indicates that the insn is a prefix insn. Must be first
193 character.
194 Q As O, but don't relax; force an 8-bit offset.
195 R General register in bits <15:12>.
196 r General register in bits <3:0>.
197 S Source operand in bit <10> and a prefix; a 3-operand prefix
198 without side-effect.
199 s Source operand in bits <10> and <3:0>, optionally with a
200 side-effect prefix, except [pc] (the name, not R15 as in ACR)
201 isn't allowed for v32 and higher.
202 T Support register in bits <15:12>.
203 u 4-bit (PC-relative) unsigned immediate word offset in bits <3:0>.
204 U Relaxes to either u or n, instruction is assumed LAPCQ or LAPC.
205 Not recognized at disassembly.
206 x Register-dot-modifier, for example "r5.w" in bits <15:12> and <5:4>.
207 y Like 's' but do not allow an integer at assembly.
208 Y The difference s-y; only an integer is allowed.
209 z Size modifier (B or W) in bit <4>. */
210
211
212 /* Please note the order of the opcodes in this table is significant.
213 The assembler requires that all instances of the same mnemonic must
214 be consecutive. If they aren't, the assembler might not recognize
215 them, or may indicate an internal error.
216
217 The disassembler should not normally care about the order of the
218 opcodes, but will prefer an earlier alternative if the "match-score"
219 (see cris-dis.c) is computed as equal.
220
221 It should not be significant for proper execution that this table is
222 in alphabetical order, but please follow that convention for an easy
223 overview. */
224
225 const struct cris_opcode
226 cris_opcodes[] =
227 {
228 {"abs", 0x06B0, 0x0940, "r,R", 0, SIZE_NONE, 0,
229 cris_abs_op},
230
231 {"add", 0x0600, 0x09c0, "m r,R", 0, SIZE_NONE, 0,
232 cris_reg_mode_add_sub_cmp_and_or_move_op},
233
234 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD, 0,
235 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
236
237 {"add", 0x0A00, 0x01c0, "m S,D", 0, SIZE_NONE,
238 cris_ver_v0_10,
239 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
240
241 {"add", 0x0a00, 0x05c0, "m S,R,r", 0, SIZE_NONE,
242 cris_ver_v0_10,
243 cris_three_operand_add_sub_cmp_and_or_op},
244
245 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD,
246 cris_ver_v32p,
247 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
248
249 {"addc", 0x0570, 0x0A80, "r,R", 0, SIZE_FIX_32,
250 cris_ver_v32p,
251 cris_not_implemented_op},
252
253 {"addc", 0x09A0, 0x0250, "s,R", 0, SIZE_FIX_32,
254 cris_ver_v32p,
255 cris_not_implemented_op},
256
257 {"addi", 0x0540, 0x0A80, "x,r,A", 0, SIZE_NONE,
258 cris_ver_v32p,
259 cris_addi_op},
260
261 {"addi", 0x0500, 0x0Ac0, "x,r", 0, SIZE_NONE, 0,
262 cris_addi_op},
263
264 /* This collates after "addo", but we want to disassemble as "addoq",
265 not "addo". */
266 {"addoq", 0x0100, 0x0E00, "Q,A", 0, SIZE_NONE,
267 cris_ver_v32p,
268 cris_not_implemented_op},
269
270 {"addo", 0x0940, 0x0280, "m s,R,A", 0, SIZE_FIELD_SIGNED,
271 cris_ver_v32p,
272 cris_not_implemented_op},
273
274 /* This must be located after the insn above, lest we misinterpret
275 "addo.b -1,r0,acr" as "addo .b-1,r0,acr". FIXME: Sounds like a
276 parser bug. */
277 {"addo", 0x0100, 0x0E00, "O,A", 0, SIZE_NONE,
278 cris_ver_v32p,
279 cris_not_implemented_op},
280
281 {"addq", 0x0200, 0x0Dc0, "I,R", 0, SIZE_NONE, 0,
282 cris_quick_mode_add_sub_op},
283
284 {"adds", 0x0420, 0x0Bc0, "z r,R", 0, SIZE_NONE, 0,
285 cris_reg_mode_add_sub_cmp_and_or_move_op},
286
287 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
288 {"adds", 0x0820, 0x03c0, "z s,R", 0, SIZE_FIELD, 0,
289 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
290
291 {"adds", 0x0820, 0x03c0, "z S,D", 0, SIZE_NONE,
292 cris_ver_v0_10,
293 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
294
295 {"adds", 0x0820, 0x07c0, "z S,R,r", 0, SIZE_NONE,
296 cris_ver_v0_10,
297 cris_three_operand_add_sub_cmp_and_or_op},
298
299 {"addu", 0x0400, 0x0be0, "z r,R", 0, SIZE_NONE, 0,
300 cris_reg_mode_add_sub_cmp_and_or_move_op},
301
302 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
303 {"addu", 0x0800, 0x03e0, "z s,R", 0, SIZE_FIELD, 0,
304 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
305
306 {"addu", 0x0800, 0x03e0, "z S,D", 0, SIZE_NONE,
307 cris_ver_v0_10,
308 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
309
310 {"addu", 0x0800, 0x07e0, "z S,R,r", 0, SIZE_NONE,
311 cris_ver_v0_10,
312 cris_three_operand_add_sub_cmp_and_or_op},
313
314 {"and", 0x0700, 0x08C0, "m r,R", 0, SIZE_NONE, 0,
315 cris_reg_mode_add_sub_cmp_and_or_move_op},
316
317 {"and", 0x0B00, 0x00C0, "m s,R", 0, SIZE_FIELD, 0,
318 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
319
320 {"and", 0x0B00, 0x00C0, "m S,D", 0, SIZE_NONE,
321 cris_ver_v0_10,
322 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
323
324 {"and", 0x0B00, 0x04C0, "m S,R,r", 0, SIZE_NONE,
325 cris_ver_v0_10,
326 cris_three_operand_add_sub_cmp_and_or_op},
327
328 {"andq", 0x0300, 0x0CC0, "i,R", 0, SIZE_NONE, 0,
329 cris_quick_mode_and_cmp_move_or_op},
330
331 {"asr", 0x0780, 0x0840, "m r,R", 0, SIZE_NONE, 0,
332 cris_asr_op},
333
334 {"asrq", 0x03a0, 0x0c40, "c,R", 0, SIZE_NONE, 0,
335 cris_asrq_op},
336
337 {"ax", 0x15B0, 0xEA4F, "", 0, SIZE_NONE, 0,
338 cris_ax_ei_setf_op},
339
340 /* FIXME: Should use branch #defines. */
341 {"b", 0x0dff, 0x0200, "b", 1, SIZE_NONE, 0,
342 cris_sixteen_bit_offset_branch_op},
343
344 {"ba",
345 BA_QUICK_OPCODE,
346 0x0F00+(0xF-CC_A)*0x1000, "o", 1, SIZE_NONE, 0,
347 cris_eight_bit_offset_branch_op},
348
349 /* Needs to come after the usual "ba o", which might be relaxed to
350 this one. */
351 {"ba", BA_DWORD_OPCODE,
352 0xffff & (~BA_DWORD_OPCODE), "n", 0, SIZE_FIX_32,
353 cris_ver_v32p,
354 cris_none_reg_mode_jump_op},
355
356 {"bas", 0x0EBF, 0x0140, "n,P", 0, SIZE_FIX_32,
357 cris_ver_v32p,
358 cris_none_reg_mode_jump_op},
359
360 {"basc", 0x0EFF, 0x0100, "n,P", 0, SIZE_FIX_32,
361 cris_ver_v32p,
362 cris_none_reg_mode_jump_op},
363
364 {"bcc",
365 BRANCH_QUICK_OPCODE+CC_CC*0x1000,
366 0x0f00+(0xF-CC_CC)*0x1000, "o", 1, SIZE_NONE, 0,
367 cris_eight_bit_offset_branch_op},
368
369 {"bcs",
370 BRANCH_QUICK_OPCODE+CC_CS*0x1000,
371 0x0f00+(0xF-CC_CS)*0x1000, "o", 1, SIZE_NONE, 0,
372 cris_eight_bit_offset_branch_op},
373
374 {"bdap",
375 BDAP_INDIR_OPCODE, BDAP_INDIR_Z_BITS, "pm s,R", 0, SIZE_FIELD_SIGNED,
376 cris_ver_v0_10,
377 cris_bdap_prefix},
378
379 {"bdap",
380 BDAP_QUICK_OPCODE, BDAP_QUICK_Z_BITS, "pO", 0, SIZE_NONE,
381 cris_ver_v0_10,
382 cris_quick_mode_bdap_prefix},
383
384 {"beq",
385 BRANCH_QUICK_OPCODE+CC_EQ*0x1000,
386 0x0f00+(0xF-CC_EQ)*0x1000, "o", 1, SIZE_NONE, 0,
387 cris_eight_bit_offset_branch_op},
388
389 /* This is deliberately put before "bext" to trump it, even though not
390 in alphabetical order, since we don't do excluding version checks
391 for v0..v10. */
392 {"bwf",
393 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
394 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
395 cris_ver_v10,
396 cris_eight_bit_offset_branch_op},
397
398 {"bext",
399 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
400 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
401 cris_ver_v0_3,
402 cris_eight_bit_offset_branch_op},
403
404 {"bge",
405 BRANCH_QUICK_OPCODE+CC_GE*0x1000,
406 0x0f00+(0xF-CC_GE)*0x1000, "o", 1, SIZE_NONE, 0,
407 cris_eight_bit_offset_branch_op},
408
409 {"bgt",
410 BRANCH_QUICK_OPCODE+CC_GT*0x1000,
411 0x0f00+(0xF-CC_GT)*0x1000, "o", 1, SIZE_NONE, 0,
412 cris_eight_bit_offset_branch_op},
413
414 {"bhi",
415 BRANCH_QUICK_OPCODE+CC_HI*0x1000,
416 0x0f00+(0xF-CC_HI)*0x1000, "o", 1, SIZE_NONE, 0,
417 cris_eight_bit_offset_branch_op},
418
419 {"bhs",
420 BRANCH_QUICK_OPCODE+CC_HS*0x1000,
421 0x0f00+(0xF-CC_HS)*0x1000, "o", 1, SIZE_NONE, 0,
422 cris_eight_bit_offset_branch_op},
423
424 {"biap", BIAP_OPCODE, BIAP_Z_BITS, "pm r,R", 0, SIZE_NONE,
425 cris_ver_v0_10,
426 cris_biap_prefix},
427
428 {"ble",
429 BRANCH_QUICK_OPCODE+CC_LE*0x1000,
430 0x0f00+(0xF-CC_LE)*0x1000, "o", 1, SIZE_NONE, 0,
431 cris_eight_bit_offset_branch_op},
432
433 {"blo",
434 BRANCH_QUICK_OPCODE+CC_LO*0x1000,
435 0x0f00+(0xF-CC_LO)*0x1000, "o", 1, SIZE_NONE, 0,
436 cris_eight_bit_offset_branch_op},
437
438 {"bls",
439 BRANCH_QUICK_OPCODE+CC_LS*0x1000,
440 0x0f00+(0xF-CC_LS)*0x1000, "o", 1, SIZE_NONE, 0,
441 cris_eight_bit_offset_branch_op},
442
443 {"blt",
444 BRANCH_QUICK_OPCODE+CC_LT*0x1000,
445 0x0f00+(0xF-CC_LT)*0x1000, "o", 1, SIZE_NONE, 0,
446 cris_eight_bit_offset_branch_op},
447
448 {"bmi",
449 BRANCH_QUICK_OPCODE+CC_MI*0x1000,
450 0x0f00+(0xF-CC_MI)*0x1000, "o", 1, SIZE_NONE, 0,
451 cris_eight_bit_offset_branch_op},
452
453 {"bmod", 0x0ab0, 0x0140, "s,R", 0, SIZE_FIX_32,
454 cris_ver_sim_v0_10,
455 cris_not_implemented_op},
456
457 {"bmod", 0x0ab0, 0x0140, "S,D", 0, SIZE_NONE,
458 cris_ver_sim_v0_10,
459 cris_not_implemented_op},
460
461 {"bmod", 0x0ab0, 0x0540, "S,R,r", 0, SIZE_NONE,
462 cris_ver_sim_v0_10,
463 cris_not_implemented_op},
464
465 {"bne",
466 BRANCH_QUICK_OPCODE+CC_NE*0x1000,
467 0x0f00+(0xF-CC_NE)*0x1000, "o", 1, SIZE_NONE, 0,
468 cris_eight_bit_offset_branch_op},
469
470 {"bound", 0x05c0, 0x0A00, "m r,R", 0, SIZE_NONE, 0,
471 cris_two_operand_bound_op},
472 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
473 {"bound", 0x09c0, 0x0200, "m s,R", 0, SIZE_FIELD,
474 cris_ver_v0_10,
475 cris_two_operand_bound_op},
476 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
477 {"bound", 0x0dcf, 0x0200, "m Y,R", 0, SIZE_FIELD, 0,
478 cris_two_operand_bound_op},
479 {"bound", 0x09c0, 0x0200, "m S,D", 0, SIZE_NONE,
480 cris_ver_v0_10,
481 cris_two_operand_bound_op},
482 {"bound", 0x09c0, 0x0600, "m S,R,r", 0, SIZE_NONE,
483 cris_ver_v0_10,
484 cris_three_operand_bound_op},
485
486 {"bpl",
487 BRANCH_QUICK_OPCODE+CC_PL*0x1000,
488 0x0f00+(0xF-CC_PL)*0x1000, "o", 1, SIZE_NONE, 0,
489 cris_eight_bit_offset_branch_op},
490
491 {"break", 0xe930, 0x16c0, "C", 0, SIZE_NONE,
492 cris_ver_v3p,
493 cris_break_op},
494
495 {"bsb",
496 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
497 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
498 cris_ver_v32p,
499 cris_eight_bit_offset_branch_op},
500
501 {"bsr", 0xBEBF, 0x4140, "n", 0, SIZE_FIX_32,
502 cris_ver_v32p,
503 cris_none_reg_mode_jump_op},
504
505 {"bsrc", 0xBEFF, 0x4100, "n", 0, SIZE_FIX_32,
506 cris_ver_v32p,
507 cris_none_reg_mode_jump_op},
508
509 {"bstore", 0x0af0, 0x0100, "s,R", 0, SIZE_FIX_32,
510 cris_ver_warning,
511 cris_not_implemented_op},
512
513 {"bstore", 0x0af0, 0x0100, "S,D", 0, SIZE_NONE,
514 cris_ver_warning,
515 cris_not_implemented_op},
516
517 {"bstore", 0x0af0, 0x0500, "S,R,r", 0, SIZE_NONE,
518 cris_ver_warning,
519 cris_not_implemented_op},
520
521 {"btst", 0x04F0, 0x0B00, "r,R", 0, SIZE_NONE, 0,
522 cris_btst_nop_op},
523 {"btstq", 0x0380, 0x0C60, "c,R", 0, SIZE_NONE, 0,
524 cris_btst_nop_op},
525
526 {"bvc",
527 BRANCH_QUICK_OPCODE+CC_VC*0x1000,
528 0x0f00+(0xF-CC_VC)*0x1000, "o", 1, SIZE_NONE, 0,
529 cris_eight_bit_offset_branch_op},
530
531 {"bvs",
532 BRANCH_QUICK_OPCODE+CC_VS*0x1000,
533 0x0f00+(0xF-CC_VS)*0x1000, "o", 1, SIZE_NONE, 0,
534 cris_eight_bit_offset_branch_op},
535
536 {"clear", 0x0670, 0x3980, "M r", 0, SIZE_NONE, 0,
537 cris_reg_mode_clear_op},
538
539 {"clear", 0x0A70, 0x3180, "M y", 0, SIZE_NONE, 0,
540 cris_none_reg_mode_clear_test_op},
541
542 {"clear", 0x0A70, 0x3180, "M S", 0, SIZE_NONE,
543 cris_ver_v0_10,
544 cris_none_reg_mode_clear_test_op},
545
546 {"clearf", 0x05F0, 0x0A00, "f", 0, SIZE_NONE, 0,
547 cris_clearf_di_op},
548
549 {"cmp", 0x06C0, 0x0900, "m r,R", 0, SIZE_NONE, 0,
550 cris_reg_mode_add_sub_cmp_and_or_move_op},
551
552 {"cmp", 0x0Ac0, 0x0100, "m s,R", 0, SIZE_FIELD, 0,
553 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
554
555 {"cmp", 0x0Ac0, 0x0100, "m S,D", 0, SIZE_NONE,
556 cris_ver_v0_10,
557 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
558
559 {"cmpq", 0x02C0, 0x0D00, "i,R", 0, SIZE_NONE, 0,
560 cris_quick_mode_and_cmp_move_or_op},
561
562 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
563 {"cmps", 0x08e0, 0x0300, "z s,R", 0, SIZE_FIELD, 0,
564 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
565
566 {"cmps", 0x08e0, 0x0300, "z S,D", 0, SIZE_NONE,
567 cris_ver_v0_10,
568 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
569
570 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
571 {"cmpu", 0x08c0, 0x0320, "z s,R" , 0, SIZE_FIELD, 0,
572 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
573
574 {"cmpu", 0x08c0, 0x0320, "z S,D", 0, SIZE_NONE,
575 cris_ver_v0_10,
576 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
577
578 {"di", 0x25F0, 0xDA0F, "", 0, SIZE_NONE, 0,
579 cris_clearf_di_op},
580
581 {"dip", DIP_OPCODE, DIP_Z_BITS, "ps", 0, SIZE_FIX_32,
582 cris_ver_v0_10,
583 cris_dip_prefix},
584
585 {"div", 0x0980, 0x0640, "m R,r", 0, SIZE_FIELD, 0,
586 cris_not_implemented_op},
587
588 {"dstep", 0x06f0, 0x0900, "r,R", 0, SIZE_NONE, 0,
589 cris_dstep_logshift_mstep_neg_not_op},
590
591 {"ei", 0x25B0, 0xDA4F, "", 0, SIZE_NONE, 0,
592 cris_ax_ei_setf_op},
593
594 {"fidxd", 0x0ab0, 0xf540, "[r]", 0, SIZE_NONE,
595 cris_ver_v32p,
596 cris_not_implemented_op},
597
598 {"fidxi", 0x0d30, 0xF2C0, "[r]", 0, SIZE_NONE,
599 cris_ver_v32p,
600 cris_not_implemented_op},
601
602 {"ftagd", 0x1AB0, 0xE540, "[r]", 0, SIZE_NONE,
603 cris_ver_v32p,
604 cris_not_implemented_op},
605
606 {"ftagi", 0x1D30, 0xE2C0, "[r]", 0, SIZE_NONE,
607 cris_ver_v32p,
608 cris_not_implemented_op},
609
610 {"halt", 0xF930, 0x06CF, "", 0, SIZE_NONE,
611 cris_ver_v32p,
612 cris_not_implemented_op},
613
614 {"jas", 0x09B0, 0x0640, "r,P", 0, SIZE_NONE,
615 cris_ver_v32p,
616 cris_reg_mode_jump_op},
617
618 {"jas", 0x0DBF, 0x0240, "N,P", 0, SIZE_FIX_32,
619 cris_ver_v32p,
620 cris_reg_mode_jump_op},
621
622 {"jasc", 0x0B30, 0x04C0, "r,P", 0, SIZE_NONE,
623 cris_ver_v32p,
624 cris_reg_mode_jump_op},
625
626 {"jasc", 0x0F3F, 0x00C0, "N,P", 0, SIZE_FIX_32,
627 cris_ver_v32p,
628 cris_reg_mode_jump_op},
629
630 {"jbrc", 0x69b0, 0x9640, "r", 0, SIZE_NONE,
631 cris_ver_v8_10,
632 cris_reg_mode_jump_op},
633
634 {"jbrc", 0x6930, 0x92c0, "s", 0, SIZE_FIX_32,
635 cris_ver_v8_10,
636 cris_none_reg_mode_jump_op},
637
638 {"jbrc", 0x6930, 0x92c0, "S", 0, SIZE_NONE,
639 cris_ver_v8_10,
640 cris_none_reg_mode_jump_op},
641
642 {"jir", 0xA9b0, 0x5640, "r", 0, SIZE_NONE,
643 cris_ver_v8_10,
644 cris_reg_mode_jump_op},
645
646 {"jir", 0xA930, 0x52c0, "s", 0, SIZE_FIX_32,
647 cris_ver_v8_10,
648 cris_none_reg_mode_jump_op},
649
650 {"jir", 0xA930, 0x52c0, "S", 0, SIZE_NONE,
651 cris_ver_v8_10,
652 cris_none_reg_mode_jump_op},
653
654 {"jirc", 0x29b0, 0xd640, "r", 0, SIZE_NONE,
655 cris_ver_v8_10,
656 cris_reg_mode_jump_op},
657
658 {"jirc", 0x2930, 0xd2c0, "s", 0, SIZE_FIX_32,
659 cris_ver_v8_10,
660 cris_none_reg_mode_jump_op},
661
662 {"jirc", 0x2930, 0xd2c0, "S", 0, SIZE_NONE,
663 cris_ver_v8_10,
664 cris_none_reg_mode_jump_op},
665
666 {"jsr", 0xB9b0, 0x4640, "r", 0, SIZE_NONE, 0,
667 cris_reg_mode_jump_op},
668
669 {"jsr", 0xB930, 0x42c0, "s", 0, SIZE_FIX_32,
670 cris_ver_v0_10,
671 cris_none_reg_mode_jump_op},
672
673 {"jsr", 0xBDBF, 0x4240, "N", 0, SIZE_FIX_32,
674 cris_ver_v32p,
675 cris_none_reg_mode_jump_op},
676
677 {"jsr", 0xB930, 0x42c0, "S", 0, SIZE_NONE,
678 cris_ver_v0_10,
679 cris_none_reg_mode_jump_op},
680
681 {"jsrc", 0x39b0, 0xc640, "r", 0, SIZE_NONE,
682 cris_ver_v8_10,
683 cris_reg_mode_jump_op},
684
685 {"jsrc", 0x3930, 0xc2c0, "s", 0, SIZE_FIX_32,
686 cris_ver_v8_10,
687 cris_none_reg_mode_jump_op},
688
689 {"jsrc", 0x3930, 0xc2c0, "S", 0, SIZE_NONE,
690 cris_ver_v8_10,
691 cris_none_reg_mode_jump_op},
692
693 {"jsrc", 0xBB30, 0x44C0, "r", 0, SIZE_NONE,
694 cris_ver_v32p,
695 cris_reg_mode_jump_op},
696
697 {"jsrc", 0xBF3F, 0x40C0, "N", 0, SIZE_FIX_32,
698 cris_ver_v32p,
699 cris_reg_mode_jump_op},
700
701 {"jump", 0x09b0, 0xF640, "r", 0, SIZE_NONE, 0,
702 cris_reg_mode_jump_op},
703
704 {"jump",
705 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "s", 0, SIZE_FIX_32,
706 cris_ver_v0_10,
707 cris_none_reg_mode_jump_op},
708
709 {"jump",
710 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "S", 0, SIZE_NONE,
711 cris_ver_v0_10,
712 cris_none_reg_mode_jump_op},
713
714 {"jump", 0x09F0, 0x060F, "P", 0, SIZE_NONE,
715 cris_ver_v32p,
716 cris_none_reg_mode_jump_op},
717
718 {"jump",
719 JUMP_PC_INCR_OPCODE_V32,
720 (0xffff & ~JUMP_PC_INCR_OPCODE_V32), "N", 0, SIZE_FIX_32,
721 cris_ver_v32p,
722 cris_none_reg_mode_jump_op},
723
724 {"jmpu", 0x8930, 0x72c0, "s", 0, SIZE_FIX_32,
725 cris_ver_v10,
726 cris_none_reg_mode_jump_op},
727
728 {"jmpu", 0x8930, 0x72c0, "S", 0, SIZE_NONE,
729 cris_ver_v10,
730 cris_none_reg_mode_jump_op},
731
732 {"lapc", 0x0970, 0x0680, "U,R", 0, SIZE_NONE,
733 cris_ver_v32p,
734 cris_not_implemented_op},
735
736 {"lapc", 0x0D7F, 0x0280, "dn,R", 0, SIZE_FIX_32,
737 cris_ver_v32p,
738 cris_not_implemented_op},
739
740 {"lapcq", 0x0970, 0x0680, "u,R", 0, SIZE_NONE,
741 cris_ver_v32p,
742 cris_addi_op},
743
744 {"lsl", 0x04C0, 0x0B00, "m r,R", 0, SIZE_NONE, 0,
745 cris_dstep_logshift_mstep_neg_not_op},
746
747 {"lslq", 0x03c0, 0x0C20, "c,R", 0, SIZE_NONE, 0,
748 cris_dstep_logshift_mstep_neg_not_op},
749
750 {"lsr", 0x07C0, 0x0800, "m r,R", 0, SIZE_NONE, 0,
751 cris_dstep_logshift_mstep_neg_not_op},
752
753 {"lsrq", 0x03e0, 0x0C00, "c,R", 0, SIZE_NONE, 0,
754 cris_dstep_logshift_mstep_neg_not_op},
755
756 {"lz", 0x0730, 0x08C0, "r,R", 0, SIZE_NONE,
757 cris_ver_v3p,
758 cris_not_implemented_op},
759
760 {"mcp", 0x07f0, 0x0800, "P,r", 0, SIZE_NONE,
761 cris_ver_v32p,
762 cris_not_implemented_op},
763
764 {"move", 0x0640, 0x0980, "m r,R", 0, SIZE_NONE, 0,
765 cris_reg_mode_add_sub_cmp_and_or_move_op},
766
767 {"move", 0x0A40, 0x0180, "m s,R", 0, SIZE_FIELD, 0,
768 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
769
770 {"move", 0x0A40, 0x0180, "m S,D", 0, SIZE_NONE,
771 cris_ver_v0_10,
772 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
773
774 {"move", 0x0630, 0x09c0, "r,P", 0, SIZE_NONE, 0,
775 cris_move_to_preg_op},
776
777 {"move", 0x0670, 0x0980, "P,r", 0, SIZE_NONE, 0,
778 cris_reg_mode_move_from_preg_op},
779
780 {"move", 0x0BC0, 0x0000, "m R,y", 0, SIZE_FIELD, 0,
781 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
782
783 {"move", 0x0BC0, 0x0000, "m D,S", 0, SIZE_NONE,
784 cris_ver_v0_10,
785 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
786
787 {"move",
788 MOVE_M_TO_PREG_OPCODE, MOVE_M_TO_PREG_ZBITS,
789 "s,P", 0, SIZE_SPEC_REG, 0,
790 cris_move_to_preg_op},
791
792 {"move", 0x0A30, 0x01c0, "S,P", 0, SIZE_NONE,
793 cris_ver_v0_10,
794 cris_move_to_preg_op},
795
796 {"move", 0x0A70, 0x0180, "P,y", 0, SIZE_SPEC_REG, 0,
797 cris_none_reg_mode_move_from_preg_op},
798
799 {"move", 0x0A70, 0x0180, "P,S", 0, SIZE_NONE,
800 cris_ver_v0_10,
801 cris_none_reg_mode_move_from_preg_op},
802
803 {"move", 0x0B70, 0x0480, "r,T", 0, SIZE_NONE,
804 cris_ver_v32p,
805 cris_not_implemented_op},
806
807 {"move", 0x0F70, 0x0080, "T,r", 0, SIZE_NONE,
808 cris_ver_v32p,
809 cris_not_implemented_op},
810
811 {"movem", 0x0BF0, 0x0000, "R,y", 0, SIZE_FIX_32, 0,
812 cris_move_reg_to_mem_movem_op},
813
814 {"movem", 0x0BF0, 0x0000, "D,S", 0, SIZE_NONE,
815 cris_ver_v0_10,
816 cris_move_reg_to_mem_movem_op},
817
818 {"movem", 0x0BB0, 0x0040, "s,R", 0, SIZE_FIX_32, 0,
819 cris_move_mem_to_reg_movem_op},
820
821 {"movem", 0x0BB0, 0x0040, "S,D", 0, SIZE_NONE,
822 cris_ver_v0_10,
823 cris_move_mem_to_reg_movem_op},
824
825 {"moveq", 0x0240, 0x0D80, "i,R", 0, SIZE_NONE, 0,
826 cris_quick_mode_and_cmp_move_or_op},
827
828 {"movs", 0x0460, 0x0B80, "z r,R", 0, SIZE_NONE, 0,
829 cris_reg_mode_add_sub_cmp_and_or_move_op},
830
831 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
832 {"movs", 0x0860, 0x0380, "z s,R", 0, SIZE_FIELD, 0,
833 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
834
835 {"movs", 0x0860, 0x0380, "z S,D", 0, SIZE_NONE,
836 cris_ver_v0_10,
837 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
838
839 {"movu", 0x0440, 0x0Ba0, "z r,R", 0, SIZE_NONE, 0,
840 cris_reg_mode_add_sub_cmp_and_or_move_op},
841
842 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
843 {"movu", 0x0840, 0x03a0, "z s,R", 0, SIZE_FIELD, 0,
844 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
845
846 {"movu", 0x0840, 0x03a0, "z S,D", 0, SIZE_NONE,
847 cris_ver_v0_10,
848 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
849
850 {"mstep", 0x07f0, 0x0800, "r,R", 0, SIZE_NONE,
851 cris_ver_v0_10,
852 cris_dstep_logshift_mstep_neg_not_op},
853
854 {"muls", 0x0d00, 0x02c0, "m r,R", 0, SIZE_NONE,
855 cris_ver_v10p,
856 cris_muls_op},
857
858 {"mulu", 0x0900, 0x06c0, "m r,R", 0, SIZE_NONE,
859 cris_ver_v10p,
860 cris_mulu_op},
861
862 {"neg", 0x0580, 0x0A40, "m r,R", 0, SIZE_NONE, 0,
863 cris_dstep_logshift_mstep_neg_not_op},
864
865 {"nop", NOP_OPCODE, NOP_Z_BITS, "", 0, SIZE_NONE,
866 cris_ver_v0_10,
867 cris_btst_nop_op},
868
869 {"nop", NOP_OPCODE_V32, NOP_Z_BITS_V32, "", 0, SIZE_NONE,
870 cris_ver_v32p,
871 cris_btst_nop_op},
872
873 {"not", 0x8770, 0x7880, "r", 0, SIZE_NONE, 0,
874 cris_dstep_logshift_mstep_neg_not_op},
875
876 {"or", 0x0740, 0x0880, "m r,R", 0, SIZE_NONE, 0,
877 cris_reg_mode_add_sub_cmp_and_or_move_op},
878
879 {"or", 0x0B40, 0x0080, "m s,R", 0, SIZE_FIELD, 0,
880 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
881
882 {"or", 0x0B40, 0x0080, "m S,D", 0, SIZE_NONE,
883 cris_ver_v0_10,
884 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
885
886 {"or", 0x0B40, 0x0480, "m S,R,r", 0, SIZE_NONE,
887 cris_ver_v0_10,
888 cris_three_operand_add_sub_cmp_and_or_op},
889
890 {"orq", 0x0340, 0x0C80, "i,R", 0, SIZE_NONE, 0,
891 cris_quick_mode_and_cmp_move_or_op},
892
893 {"pop", 0x0E6E, 0x0191, "!R", 0, SIZE_NONE,
894 cris_ver_v0_10,
895 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
896
897 {"pop", 0x0e3e, 0x01c1, "!P", 0, SIZE_NONE,
898 cris_ver_v0_10,
899 cris_none_reg_mode_move_from_preg_op},
900
901 {"push", 0x0FEE, 0x0011, "BR", 0, SIZE_NONE,
902 cris_ver_v0_10,
903 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
904
905 {"push", 0x0E7E, 0x0181, "BP", 0, SIZE_NONE,
906 cris_ver_v0_10,
907 cris_move_to_preg_op},
908
909 {"rbf", 0x3b30, 0xc0c0, "y", 0, SIZE_NONE,
910 cris_ver_v10,
911 cris_not_implemented_op},
912
913 {"rbf", 0x3b30, 0xc0c0, "S", 0, SIZE_NONE,
914 cris_ver_v10,
915 cris_not_implemented_op},
916
917 {"rfe", 0x2930, 0xD6CF, "", 0, SIZE_NONE,
918 cris_ver_v32p,
919 cris_not_implemented_op},
920
921 {"rfg", 0x4930, 0xB6CF, "", 0, SIZE_NONE,
922 cris_ver_v32p,
923 cris_not_implemented_op},
924
925 {"rfn", 0x5930, 0xA6CF, "", 0, SIZE_NONE,
926 cris_ver_v32p,
927 cris_not_implemented_op},
928
929 {"ret", 0xB67F, 0x4980, "", 1, SIZE_NONE,
930 cris_ver_v0_10,
931 cris_reg_mode_move_from_preg_op},
932
933 {"ret", 0xB9F0, 0x460F, "", 1, SIZE_NONE,
934 cris_ver_v32p,
935 cris_reg_mode_move_from_preg_op},
936
937 {"retb", 0xe67f, 0x1980, "", 1, SIZE_NONE,
938 cris_ver_v0_10,
939 cris_reg_mode_move_from_preg_op},
940
941 {"rete", 0xA9F0, 0x560F, "", 1, SIZE_NONE,
942 cris_ver_v32p,
943 cris_reg_mode_move_from_preg_op},
944
945 {"reti", 0xA67F, 0x5980, "", 1, SIZE_NONE,
946 cris_ver_v0_10,
947 cris_reg_mode_move_from_preg_op},
948
949 {"retn", 0xC9F0, 0x360F, "", 1, SIZE_NONE,
950 cris_ver_v32p,
951 cris_reg_mode_move_from_preg_op},
952
953 {"sbfs", 0x3b70, 0xc080, "y", 0, SIZE_NONE,
954 cris_ver_v10,
955 cris_not_implemented_op},
956
957 {"sbfs", 0x3b70, 0xc080, "S", 0, SIZE_NONE,
958 cris_ver_v10,
959 cris_not_implemented_op},
960
961 {"sa",
962 0x0530+CC_A*0x1000,
963 0x0AC0+(0xf-CC_A)*0x1000, "r", 0, SIZE_NONE, 0,
964 cris_scc_op},
965
966 {"ssb",
967 0x0530+CC_EXT*0x1000,
968 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
969 cris_ver_v32p,
970 cris_scc_op},
971
972 {"scc",
973 0x0530+CC_CC*0x1000,
974 0x0AC0+(0xf-CC_CC)*0x1000, "r", 0, SIZE_NONE, 0,
975 cris_scc_op},
976
977 {"scs",
978 0x0530+CC_CS*0x1000,
979 0x0AC0+(0xf-CC_CS)*0x1000, "r", 0, SIZE_NONE, 0,
980 cris_scc_op},
981
982 {"seq",
983 0x0530+CC_EQ*0x1000,
984 0x0AC0+(0xf-CC_EQ)*0x1000, "r", 0, SIZE_NONE, 0,
985 cris_scc_op},
986
987 {"setf", 0x05b0, 0x0A40, "f", 0, SIZE_NONE, 0,
988 cris_ax_ei_setf_op},
989
990 {"sfe", 0x3930, 0xC6CF, "", 0, SIZE_NONE,
991 cris_ver_v32p,
992 cris_not_implemented_op},
993
994 /* Need to have "swf" in front of "sext" so it is the one displayed in
995 disassembly. */
996 {"swf",
997 0x0530+CC_EXT*0x1000,
998 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
999 cris_ver_v10,
1000 cris_scc_op},
1001
1002 {"sext",
1003 0x0530+CC_EXT*0x1000,
1004 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
1005 cris_ver_v0_3,
1006 cris_scc_op},
1007
1008 {"sge",
1009 0x0530+CC_GE*0x1000,
1010 0x0AC0+(0xf-CC_GE)*0x1000, "r", 0, SIZE_NONE, 0,
1011 cris_scc_op},
1012
1013 {"sgt",
1014 0x0530+CC_GT*0x1000,
1015 0x0AC0+(0xf-CC_GT)*0x1000, "r", 0, SIZE_NONE, 0,
1016 cris_scc_op},
1017
1018 {"shi",
1019 0x0530+CC_HI*0x1000,
1020 0x0AC0+(0xf-CC_HI)*0x1000, "r", 0, SIZE_NONE, 0,
1021 cris_scc_op},
1022
1023 {"shs",
1024 0x0530+CC_HS*0x1000,
1025 0x0AC0+(0xf-CC_HS)*0x1000, "r", 0, SIZE_NONE, 0,
1026 cris_scc_op},
1027
1028 {"sle",
1029 0x0530+CC_LE*0x1000,
1030 0x0AC0+(0xf-CC_LE)*0x1000, "r", 0, SIZE_NONE, 0,
1031 cris_scc_op},
1032
1033 {"slo",
1034 0x0530+CC_LO*0x1000,
1035 0x0AC0+(0xf-CC_LO)*0x1000, "r", 0, SIZE_NONE, 0,
1036 cris_scc_op},
1037
1038 {"sls",
1039 0x0530+CC_LS*0x1000,
1040 0x0AC0+(0xf-CC_LS)*0x1000, "r", 0, SIZE_NONE, 0,
1041 cris_scc_op},
1042
1043 {"slt",
1044 0x0530+CC_LT*0x1000,
1045 0x0AC0+(0xf-CC_LT)*0x1000, "r", 0, SIZE_NONE, 0,
1046 cris_scc_op},
1047
1048 {"smi",
1049 0x0530+CC_MI*0x1000,
1050 0x0AC0+(0xf-CC_MI)*0x1000, "r", 0, SIZE_NONE, 0,
1051 cris_scc_op},
1052
1053 {"sne",
1054 0x0530+CC_NE*0x1000,
1055 0x0AC0+(0xf-CC_NE)*0x1000, "r", 0, SIZE_NONE, 0,
1056 cris_scc_op},
1057
1058 {"spl",
1059 0x0530+CC_PL*0x1000,
1060 0x0AC0+(0xf-CC_PL)*0x1000, "r", 0, SIZE_NONE, 0,
1061 cris_scc_op},
1062
1063 {"sub", 0x0680, 0x0940, "m r,R", 0, SIZE_NONE, 0,
1064 cris_reg_mode_add_sub_cmp_and_or_move_op},
1065
1066 {"sub", 0x0a80, 0x0140, "m s,R", 0, SIZE_FIELD, 0,
1067 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1068
1069 {"sub", 0x0a80, 0x0140, "m S,D", 0, SIZE_NONE,
1070 cris_ver_v0_10,
1071 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1072
1073 {"sub", 0x0a80, 0x0540, "m S,R,r", 0, SIZE_NONE,
1074 cris_ver_v0_10,
1075 cris_three_operand_add_sub_cmp_and_or_op},
1076
1077 {"subq", 0x0280, 0x0d40, "I,R", 0, SIZE_NONE, 0,
1078 cris_quick_mode_add_sub_op},
1079
1080 {"subs", 0x04a0, 0x0b40, "z r,R", 0, SIZE_NONE, 0,
1081 cris_reg_mode_add_sub_cmp_and_or_move_op},
1082
1083 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
1084 {"subs", 0x08a0, 0x0340, "z s,R", 0, SIZE_FIELD, 0,
1085 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1086
1087 {"subs", 0x08a0, 0x0340, "z S,D", 0, SIZE_NONE,
1088 cris_ver_v0_10,
1089 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1090
1091 {"subs", 0x08a0, 0x0740, "z S,R,r", 0, SIZE_NONE,
1092 cris_ver_v0_10,
1093 cris_three_operand_add_sub_cmp_and_or_op},
1094
1095 {"subu", 0x0480, 0x0b60, "z r,R", 0, SIZE_NONE, 0,
1096 cris_reg_mode_add_sub_cmp_and_or_move_op},
1097
1098 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
1099 {"subu", 0x0880, 0x0360, "z s,R", 0, SIZE_FIELD, 0,
1100 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1101
1102 {"subu", 0x0880, 0x0360, "z S,D", 0, SIZE_NONE,
1103 cris_ver_v0_10,
1104 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1105
1106 {"subu", 0x0880, 0x0760, "z S,R,r", 0, SIZE_NONE,
1107 cris_ver_v0_10,
1108 cris_three_operand_add_sub_cmp_and_or_op},
1109
1110 {"svc",
1111 0x0530+CC_VC*0x1000,
1112 0x0AC0+(0xf-CC_VC)*0x1000, "r", 0, SIZE_NONE, 0,
1113 cris_scc_op},
1114
1115 {"svs",
1116 0x0530+CC_VS*0x1000,
1117 0x0AC0+(0xf-CC_VS)*0x1000, "r", 0, SIZE_NONE, 0,
1118 cris_scc_op},
1119
1120 /* The insn "swapn" is the same as "not" and will be disassembled as
1121 such, but the swap* family of mnmonics are generally v8-and-higher
1122 only, so count it in. */
1123 {"swapn", 0x8770, 0x7880, "r", 0, SIZE_NONE,
1124 cris_ver_v8p,
1125 cris_not_implemented_op},
1126
1127 {"swapw", 0x4770, 0xb880, "r", 0, SIZE_NONE,
1128 cris_ver_v8p,
1129 cris_not_implemented_op},
1130
1131 {"swapnw", 0xc770, 0x3880, "r", 0, SIZE_NONE,
1132 cris_ver_v8p,
1133 cris_not_implemented_op},
1134
1135 {"swapb", 0x2770, 0xd880, "r", 0, SIZE_NONE,
1136 cris_ver_v8p,
1137 cris_not_implemented_op},
1138
1139 {"swapnb", 0xA770, 0x5880, "r", 0, SIZE_NONE,
1140 cris_ver_v8p,
1141 cris_not_implemented_op},
1142
1143 {"swapwb", 0x6770, 0x9880, "r", 0, SIZE_NONE,
1144 cris_ver_v8p,
1145 cris_not_implemented_op},
1146
1147 {"swapnwb", 0xE770, 0x1880, "r", 0, SIZE_NONE,
1148 cris_ver_v8p,
1149 cris_not_implemented_op},
1150
1151 {"swapr", 0x1770, 0xe880, "r", 0, SIZE_NONE,
1152 cris_ver_v8p,
1153 cris_not_implemented_op},
1154
1155 {"swapnr", 0x9770, 0x6880, "r", 0, SIZE_NONE,
1156 cris_ver_v8p,
1157 cris_not_implemented_op},
1158
1159 {"swapwr", 0x5770, 0xa880, "r", 0, SIZE_NONE,
1160 cris_ver_v8p,
1161 cris_not_implemented_op},
1162
1163 {"swapnwr", 0xd770, 0x2880, "r", 0, SIZE_NONE,
1164 cris_ver_v8p,
1165 cris_not_implemented_op},
1166
1167 {"swapbr", 0x3770, 0xc880, "r", 0, SIZE_NONE,
1168 cris_ver_v8p,
1169 cris_not_implemented_op},
1170
1171 {"swapnbr", 0xb770, 0x4880, "r", 0, SIZE_NONE,
1172 cris_ver_v8p,
1173 cris_not_implemented_op},
1174
1175 {"swapwbr", 0x7770, 0x8880, "r", 0, SIZE_NONE,
1176 cris_ver_v8p,
1177 cris_not_implemented_op},
1178
1179 {"swapnwbr", 0xf770, 0x0880, "r", 0, SIZE_NONE,
1180 cris_ver_v8p,
1181 cris_not_implemented_op},
1182
1183 {"test", 0x0640, 0x0980, "m D", 0, SIZE_NONE,
1184 cris_ver_v0_10,
1185 cris_reg_mode_test_op},
1186
1187 {"test", 0x0b80, 0xf040, "m y", 0, SIZE_FIELD, 0,
1188 cris_none_reg_mode_clear_test_op},
1189
1190 {"test", 0x0b80, 0xf040, "m S", 0, SIZE_NONE,
1191 cris_ver_v0_10,
1192 cris_none_reg_mode_clear_test_op},
1193
1194 {"xor", 0x07B0, 0x0840, "r,R", 0, SIZE_NONE, 0,
1195 cris_xor_op},
1196
1197 {NULL, 0, 0, NULL, 0, 0, 0, cris_not_implemented_op}
1198 };
1199
1200 /* Condition-names, indexed by the CC_* numbers as found in cris.h. */
1201 const char * const
1202 cris_cc_strings[] =
1203 {
1204 "hs",
1205 "lo",
1206 "ne",
1207 "eq",
1208 "vc",
1209 "vs",
1210 "pl",
1211 "mi",
1212 "ls",
1213 "hi",
1214 "ge",
1215 "lt",
1216 "gt",
1217 "le",
1218 "a",
1219 /* This is a placeholder. In v0, this would be "ext". In v32, this
1220 is "sb". See cris_conds15. */
1221 "wf"
1222 };
1223
1224 /* Different names and semantics for condition 1111 (0xf). */
1225 const struct cris_cond15 cris_cond15s[] =
1226 {
1227 /* FIXME: In what version did condition "ext" disappear? */
1228 {"ext", cris_ver_v0_3},
1229 {"wf", cris_ver_v10},
1230 {"sb", cris_ver_v32p},
1231 {NULL, 0}
1232 };
1233
1234
1235 /*
1236 * Local variables:
1237 * eval: (c-set-style "gnu")
1238 * indent-tabs-mode: t
1239 * End:
1240 */
1241
1242
1243 /* No instruction will be disassembled longer than this. In theory, and
1244 in silicon, address prefixes can be cascaded. In practice, cascading
1245 is not used by GCC, and not supported by the assembler. */
1246 #ifndef MAX_BYTES_PER_CRIS_INSN
1247 #define MAX_BYTES_PER_CRIS_INSN 8
1248 #endif
1249
1250 /* Whether or not to decode prefixes, folding it into the following
1251 instruction. FIXME: Make this optional later. */
1252 #ifndef PARSE_PREFIX
1253 #define PARSE_PREFIX 1
1254 #endif
1255
1256 /* Sometimes we prefix all registers with this character. */
1257 #define REGISTER_PREFIX_CHAR '$'
1258
1259 /* Whether or not to trace the following sequence:
1260 sub* X,r%d
1261 bound* Y,r%d
1262 adds.w [pc+r%d.w],pc
1263
1264 This is the assembly form of a switch-statement in C.
1265 The "sub is optional. If there is none, then X will be zero.
1266 X is the value of the first case,
1267 Y is the number of cases (including default).
1268
1269 This results in case offsets printed on the form:
1270 case N: -> case_address
1271 where N is an estimation on the corresponding 'case' operand in C,
1272 and case_address is where execution of that case continues after the
1273 sequence presented above.
1274
1275 The old style of output was to print the offsets as instructions,
1276 which made it hard to follow "case"-constructs in the disassembly,
1277 and caused a lot of annoying warnings about undefined instructions.
1278
1279 FIXME: Make this optional later. */
1280 #ifndef TRACE_CASE
1281 #define TRACE_CASE (disdata->trace_case)
1282 #endif
1283
1284 enum cris_disass_family
1285 { cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 };
1286
1287 /* Stored in the disasm_info->private_data member. */
1288 struct cris_disasm_data
1289 {
1290 /* Whether to print something less confusing if we find something
1291 matching a switch-construct. */
1292 bfd_boolean trace_case;
1293
1294 /* Whether this code is flagged as crisv32. FIXME: Should be an enum
1295 that includes "compatible". */
1296 enum cris_disass_family distype;
1297 };
1298
1299 /* Value of first element in switch. */
1300 static long case_offset = 0;
1301
1302 /* How many more case-offsets to print. */
1303 static long case_offset_counter = 0;
1304
1305 /* Number of case offsets. */
1306 static long no_of_case_offsets = 0;
1307
1308 /* Candidate for next case_offset. */
1309 static long last_immediate = 0;
1310
1311 static int cris_constraint
1312 (const char *, unsigned, unsigned, struct cris_disasm_data *);
1313
1314 /* Parse disassembler options and store state in info. FIXME: For the
1315 time being, we abuse static variables. */
1316
1317 static bfd_boolean
1318 cris_parse_disassembler_options (disassemble_info *info,
1319 enum cris_disass_family distype)
1320 {
1321 struct cris_disasm_data *disdata;
1322
1323 info->private_data = calloc (1, sizeof (struct cris_disasm_data));
1324 disdata = (struct cris_disasm_data *) info->private_data;
1325 if (disdata == NULL)
1326 return FALSE;
1327
1328 /* Default true. */
1329 disdata->trace_case
1330 = (info->disassembler_options == NULL
1331 || (strcmp (info->disassembler_options, "nocase") != 0));
1332
1333 disdata->distype = distype;
1334 return TRUE;
1335 }
1336
1337 static const struct cris_spec_reg *
1338 spec_reg_info (unsigned int sreg, enum cris_disass_family distype)
1339 {
1340 int i;
1341
1342 for (i = 0; cris_spec_regs[i].name != NULL; i++)
1343 {
1344 if (cris_spec_regs[i].number == sreg)
1345 {
1346 if (distype == cris_dis_v32)
1347 switch (cris_spec_regs[i].applicable_version)
1348 {
1349 case cris_ver_warning:
1350 case cris_ver_version_all:
1351 case cris_ver_v3p:
1352 case cris_ver_v8p:
1353 case cris_ver_v10p:
1354 case cris_ver_v32p:
1355 /* No ambiguous sizes or register names with CRISv32. */
1356 if (cris_spec_regs[i].warning == NULL)
1357 return &cris_spec_regs[i];
1358 default:
1359 ;
1360 }
1361 else if (cris_spec_regs[i].applicable_version != cris_ver_v32p)
1362 return &cris_spec_regs[i];
1363 }
1364 }
1365
1366 return NULL;
1367 }
1368
1369 /* Return the number of bits in the argument. */
1370
1371 static int
1372 number_of_bits (unsigned int val)
1373 {
1374 int bits;
1375
1376 for (bits = 0; val != 0; val &= val - 1)
1377 bits++;
1378
1379 return bits;
1380 }
1381
1382 /* Get an entry in the opcode-table. */
1383
1384 static const struct cris_opcode *
1385 get_opcode_entry (unsigned int insn,
1386 unsigned int prefix_insn,
1387 struct cris_disasm_data *disdata)
1388 {
1389 /* For non-prefixed insns, we keep a table of pointers, indexed by the
1390 insn code. Each entry is initialized when found to be NULL. */
1391 static const struct cris_opcode **opc_table = NULL;
1392
1393 const struct cris_opcode *max_matchedp = NULL;
1394 const struct cris_opcode **prefix_opc_table = NULL;
1395
1396 /* We hold a table for each prefix that need to be handled differently. */
1397 static const struct cris_opcode **dip_prefixes = NULL;
1398 static const struct cris_opcode **bdapq_m1_prefixes = NULL;
1399 static const struct cris_opcode **bdapq_m2_prefixes = NULL;
1400 static const struct cris_opcode **bdapq_m4_prefixes = NULL;
1401 static const struct cris_opcode **rest_prefixes = NULL;
1402
1403 /* Allocate and clear the opcode-table. */
1404 if (opc_table == NULL)
1405 {
1406 opc_table = qemu_malloc (65536 * sizeof (opc_table[0]));
1407
1408 memset (opc_table, 0, 65536 * sizeof (const struct cris_opcode *));
1409
1410 dip_prefixes
1411 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1412
1413 memset (dip_prefixes, 0, 65536 * sizeof (dip_prefixes[0]));
1414
1415 bdapq_m1_prefixes
1416 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1417
1418 memset (bdapq_m1_prefixes, 0, 65536 * sizeof (bdapq_m1_prefixes[0]));
1419
1420 bdapq_m2_prefixes
1421 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1422
1423 memset (bdapq_m2_prefixes, 0, 65536 * sizeof (bdapq_m2_prefixes[0]));
1424
1425 bdapq_m4_prefixes
1426 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1427
1428 memset (bdapq_m4_prefixes, 0, 65536 * sizeof (bdapq_m4_prefixes[0]));
1429
1430 rest_prefixes
1431 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1432
1433 memset (rest_prefixes, 0, 65536 * sizeof (rest_prefixes[0]));
1434 }
1435
1436 /* Get the right table if this is a prefix.
1437 This code is connected to cris_constraints in that it knows what
1438 prefixes play a role in recognition of patterns; the necessary
1439 state is reflected by which table is used. If constraints
1440 involving match or non-match of prefix insns are changed, then this
1441 probably needs changing too. */
1442 if (prefix_insn != NO_CRIS_PREFIX)
1443 {
1444 const struct cris_opcode *popcodep
1445 = (opc_table[prefix_insn] != NULL
1446 ? opc_table[prefix_insn]
1447 : get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata));
1448
1449 if (popcodep == NULL)
1450 return NULL;
1451
1452 if (popcodep->match == BDAP_QUICK_OPCODE)
1453 {
1454 /* Since some offsets are recognized with "push" macros, we
1455 have to have different tables for them. */
1456 int offset = (prefix_insn & 255);
1457
1458 if (offset > 127)
1459 offset -= 256;
1460
1461 switch (offset)
1462 {
1463 case -4:
1464 prefix_opc_table = bdapq_m4_prefixes;
1465 break;
1466
1467 case -2:
1468 prefix_opc_table = bdapq_m2_prefixes;
1469 break;
1470
1471 case -1:
1472 prefix_opc_table = bdapq_m1_prefixes;
1473 break;
1474
1475 default:
1476 prefix_opc_table = rest_prefixes;
1477 break;
1478 }
1479 }
1480 else if (popcodep->match == DIP_OPCODE)
1481 /* We don't allow postincrement when the prefix is DIP, so use a
1482 different table for DIP. */
1483 prefix_opc_table = dip_prefixes;
1484 else
1485 prefix_opc_table = rest_prefixes;
1486 }
1487
1488 if (prefix_insn != NO_CRIS_PREFIX
1489 && prefix_opc_table[insn] != NULL)
1490 max_matchedp = prefix_opc_table[insn];
1491 else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL)
1492 max_matchedp = opc_table[insn];
1493 else
1494 {
1495 const struct cris_opcode *opcodep;
1496 int max_level_of_match = -1;
1497
1498 for (opcodep = cris_opcodes;
1499 opcodep->name != NULL;
1500 opcodep++)
1501 {
1502 int level_of_match;
1503
1504 if (disdata->distype == cris_dis_v32)
1505 {
1506 switch (opcodep->applicable_version)
1507 {
1508 case cris_ver_version_all:
1509 break;
1510
1511 case cris_ver_v0_3:
1512 case cris_ver_v0_10:
1513 case cris_ver_v3_10:
1514 case cris_ver_sim_v0_10:
1515 case cris_ver_v8_10:
1516 case cris_ver_v10:
1517 case cris_ver_warning:
1518 continue;
1519
1520 case cris_ver_v3p:
1521 case cris_ver_v8p:
1522 case cris_ver_v10p:
1523 case cris_ver_v32p:
1524 break;
1525
1526 case cris_ver_v8:
1527 abort ();
1528 default:
1529 abort ();
1530 }
1531 }
1532 else
1533 {
1534 switch (opcodep->applicable_version)
1535 {
1536 case cris_ver_version_all:
1537 case cris_ver_v0_3:
1538 case cris_ver_v3p:
1539 case cris_ver_v0_10:
1540 case cris_ver_v8p:
1541 case cris_ver_v8_10:
1542 case cris_ver_v10:
1543 case cris_ver_sim_v0_10:
1544 case cris_ver_v10p:
1545 case cris_ver_warning:
1546 break;
1547
1548 case cris_ver_v32p:
1549 continue;
1550
1551 case cris_ver_v8:
1552 abort ();
1553 default:
1554 abort ();
1555 }
1556 }
1557
1558 /* We give a double lead for bits matching the template in
1559 cris_opcodes. Not even, because then "move p8,r10" would
1560 be given 2 bits lead over "clear.d r10". When there's a
1561 tie, the first entry in the table wins. This is
1562 deliberate, to avoid a more complicated recognition
1563 formula. */
1564 if ((opcodep->match & insn) == opcodep->match
1565 && (opcodep->lose & insn) == 0
1566 && ((level_of_match
1567 = cris_constraint (opcodep->args,
1568 insn,
1569 prefix_insn,
1570 disdata))
1571 >= 0)
1572 && ((level_of_match
1573 += 2 * number_of_bits (opcodep->match
1574 | opcodep->lose))
1575 > max_level_of_match))
1576 {
1577 max_matchedp = opcodep;
1578 max_level_of_match = level_of_match;
1579
1580 /* If there was a full match, never mind looking
1581 further. */
1582 if (level_of_match >= 2 * 16)
1583 break;
1584 }
1585 }
1586 /* Fill in the new entry.
1587
1588 If there are changes to the opcode-table involving prefixes, and
1589 disassembly then does not work correctly, try removing the
1590 else-clause below that fills in the prefix-table. If that
1591 helps, you need to change the prefix_opc_table setting above, or
1592 something related. */
1593 if (prefix_insn == NO_CRIS_PREFIX)
1594 opc_table[insn] = max_matchedp;
1595 else
1596 prefix_opc_table[insn] = max_matchedp;
1597 }
1598
1599 return max_matchedp;
1600 }
1601
1602 /* Return -1 if the constraints of a bitwise-matched instruction say
1603 that there is no match. Otherwise return a nonnegative number
1604 indicating the confidence in the match (higher is better). */
1605
1606 static int
1607 cris_constraint (const char *cs,
1608 unsigned int insn,
1609 unsigned int prefix_insn,
1610 struct cris_disasm_data *disdata)
1611 {
1612 int retval = 0;
1613 int tmp;
1614 int prefix_ok = 0;
1615 const char *s;
1616
1617 for (s = cs; *s; s++)
1618 switch (*s)
1619 {
1620 case '!':
1621 /* Do not recognize "pop" if there's a prefix and then only for
1622 v0..v10. */
1623 if (prefix_insn != NO_CRIS_PREFIX
1624 || disdata->distype != cris_dis_v0_v10)
1625 return -1;
1626 break;
1627
1628 case 'U':
1629 /* Not recognized at disassembly. */
1630 return -1;
1631
1632 case 'M':
1633 /* Size modifier for "clear", i.e. special register 0, 4 or 8.
1634 Check that it is one of them. Only special register 12 could
1635 be mismatched, but checking for matches is more logical than
1636 checking for mismatches when there are only a few cases. */
1637 tmp = ((insn >> 12) & 0xf);
1638 if (tmp != 0 && tmp != 4 && tmp != 8)
1639 return -1;
1640 break;
1641
1642 case 'm':
1643 if ((insn & 0x30) == 0x30)
1644 return -1;
1645 break;
1646
1647 case 'S':
1648 /* A prefix operand without side-effect. */
1649 if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0)
1650 {
1651 prefix_ok = 1;
1652 break;
1653 }
1654 else
1655 return -1;
1656
1657 case 's':
1658 case 'y':
1659 case 'Y':
1660 /* If this is a prefixed insn with postincrement (side-effect),
1661 the prefix must not be DIP. */
1662 if (prefix_insn != NO_CRIS_PREFIX)
1663 {
1664 if (insn & 0x400)
1665 {
1666 const struct cris_opcode *prefix_opcodep
1667 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1668
1669 if (prefix_opcodep->match == DIP_OPCODE)
1670 return -1;
1671 }
1672
1673 prefix_ok = 1;
1674 }
1675 break;
1676
1677 case 'B':
1678 /* If we don't fall through, then the prefix is ok. */
1679 prefix_ok = 1;
1680
1681 /* A "push" prefix. Check for valid "push" size.
1682 In case of special register, it may be != 4. */
1683 if (prefix_insn != NO_CRIS_PREFIX)
1684 {
1685 /* Match the prefix insn to BDAPQ. */
1686 const struct cris_opcode *prefix_opcodep
1687 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1688
1689 if (prefix_opcodep->match == BDAP_QUICK_OPCODE)
1690 {
1691 int pushsize = (prefix_insn & 255);
1692
1693 if (pushsize > 127)
1694 pushsize -= 256;
1695
1696 if (s[1] == 'P')
1697 {
1698 unsigned int spec_reg = (insn >> 12) & 15;
1699 const struct cris_spec_reg *sregp
1700 = spec_reg_info (spec_reg, disdata->distype);
1701
1702 /* For a special-register, the "prefix size" must
1703 match the size of the register. */
1704 if (sregp && sregp->reg_size == (unsigned int) -pushsize)
1705 break;
1706 }
1707 else if (s[1] == 'R')
1708 {
1709 if ((insn & 0x30) == 0x20 && pushsize == -4)
1710 break;
1711 }
1712 /* FIXME: Should abort here; next constraint letter
1713 *must* be 'P' or 'R'. */
1714 }
1715 }
1716 return -1;
1717
1718 case 'D':
1719 retval = (((insn >> 12) & 15) == (insn & 15));
1720 if (!retval)
1721 return -1;
1722 else
1723 retval += 4;
1724 break;
1725
1726 case 'P':
1727 {
1728 const struct cris_spec_reg *sregp
1729 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
1730
1731 /* Since we match four bits, we will give a value of 4-1 = 3
1732 in a match. If there is a corresponding exact match of a
1733 special register in another pattern, it will get a value of
1734 4, which will be higher. This should be correct in that an
1735 exact pattern would match better than a general pattern.
1736
1737 Note that there is a reason for not returning zero; the
1738 pattern for "clear" is partly matched in the bit-pattern
1739 (the two lower bits must be zero), while the bit-pattern
1740 for a move from a special register is matched in the
1741 register constraint. */
1742
1743 if (sregp != NULL)
1744 {
1745 retval += 3;
1746 break;
1747 }
1748 else
1749 return -1;
1750 }
1751 }
1752
1753 if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok)
1754 return -1;
1755
1756 return retval;
1757 }
1758
1759 /* Format number as hex with a leading "0x" into outbuffer. */
1760
1761 static char *
1762 format_hex (unsigned long number,
1763 char *outbuffer,
1764 struct cris_disasm_data *disdata)
1765 {
1766 /* Truncate negative numbers on >32-bit hosts. */
1767 number &= 0xffffffff;
1768
1769 sprintf (outbuffer, "0x%lx", number);
1770
1771 /* Save this value for the "case" support. */
1772 if (TRACE_CASE)
1773 last_immediate = number;
1774
1775 return outbuffer + strlen (outbuffer);
1776 }
1777
1778 /* Format number as decimal into outbuffer. Parameter signedp says
1779 whether the number should be formatted as signed (!= 0) or
1780 unsigned (== 0). */
1781
1782 static char *
1783 format_dec (long number, char *outbuffer, int signedp)
1784 {
1785 last_immediate = number;
1786 sprintf (outbuffer, signedp ? "%ld" : "%lu", number);
1787
1788 return outbuffer + strlen (outbuffer);
1789 }
1790
1791 /* Format the name of the general register regno into outbuffer. */
1792
1793 static char *
1794 format_reg (struct cris_disasm_data *disdata,
1795 int regno,
1796 char *outbuffer_start,
1797 bfd_boolean with_reg_prefix)
1798 {
1799 char *outbuffer = outbuffer_start;
1800
1801 if (with_reg_prefix)
1802 *outbuffer++ = REGISTER_PREFIX_CHAR;
1803
1804 switch (regno)
1805 {
1806 case 15:
1807 /* For v32, there is no context in which we output PC. */
1808 if (disdata->distype == cris_dis_v32)
1809 strcpy (outbuffer, "acr");
1810 else
1811 strcpy (outbuffer, "pc");
1812 break;
1813
1814 case 14:
1815 strcpy (outbuffer, "sp");
1816 break;
1817
1818 default:
1819 sprintf (outbuffer, "r%d", regno);
1820 break;
1821 }
1822
1823 return outbuffer_start + strlen (outbuffer_start);
1824 }
1825
1826 /* Format the name of a support register into outbuffer. */
1827
1828 static char *
1829 format_sup_reg (unsigned int regno,
1830 char *outbuffer_start,
1831 bfd_boolean with_reg_prefix)
1832 {
1833 char *outbuffer = outbuffer_start;
1834 int i;
1835
1836 if (with_reg_prefix)
1837 *outbuffer++ = REGISTER_PREFIX_CHAR;
1838
1839 for (i = 0; cris_support_regs[i].name != NULL; i++)
1840 if (cris_support_regs[i].number == regno)
1841 {
1842 sprintf (outbuffer, "%s", cris_support_regs[i].name);
1843 return outbuffer_start + strlen (outbuffer_start);
1844 }
1845
1846 /* There's supposed to be register names covering all numbers, though
1847 some may be generic names. */
1848 sprintf (outbuffer, "format_sup_reg-BUG");
1849 return outbuffer_start + strlen (outbuffer_start);
1850 }
1851
1852 /* Return the length of an instruction. */
1853
1854 static unsigned
1855 bytes_to_skip (unsigned int insn,
1856 const struct cris_opcode *matchedp,
1857 enum cris_disass_family distype,
1858 const struct cris_opcode *prefix_matchedp)
1859 {
1860 /* Each insn is a word plus "immediate" operands. */
1861 unsigned to_skip = 2;
1862 const char *template = matchedp->args;
1863 const char *s;
1864
1865 for (s = template; *s; s++)
1866 if ((*s == 's' || *s == 'N' || *s == 'Y')
1867 && (insn & 0x400) && (insn & 15) == 15
1868 && prefix_matchedp == NULL)
1869 {
1870 /* Immediate via [pc+], so we have to check the size of the
1871 operand. */
1872 int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3));
1873
1874 if (matchedp->imm_oprnd_size == SIZE_FIX_32)
1875 to_skip += 4;
1876 else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG)
1877 {
1878 const struct cris_spec_reg *sregp
1879 = spec_reg_info ((insn >> 12) & 15, distype);
1880
1881 /* FIXME: Improve error handling; should have been caught
1882 earlier. */
1883 if (sregp == NULL)
1884 return 2;
1885
1886 /* PC is incremented by two, not one, for a byte. Except on
1887 CRISv32, where constants are always DWORD-size for
1888 special registers. */
1889 to_skip +=
1890 distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1;
1891 }
1892 else
1893 to_skip += (mode_size + 1) & ~1;
1894 }
1895 else if (*s == 'n')
1896 to_skip += 4;
1897 else if (*s == 'b')
1898 to_skip += 2;
1899
1900 return to_skip;
1901 }
1902
1903 /* Print condition code flags. */
1904
1905 static char *
1906 print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp)
1907 {
1908 /* Use the v8 (Etrax 100) flag definitions for disassembly.
1909 The differences with v0 (Etrax 1..4) vs. Svinto are:
1910 v0 'd' <=> v8 'm'
1911 v0 'e' <=> v8 'b'.
1912 FIXME: Emit v0..v3 flag names somehow. */
1913 static const char v8_fnames[] = "cvznxibm";
1914 static const char v32_fnames[] = "cvznxiup";
1915 const char *fnames
1916 = disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames;
1917
1918 unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15));
1919 int i;
1920
1921 for (i = 0; i < 8; i++)
1922 if (flagbits & (1 << i))
1923 *cp++ = fnames[i];
1924
1925 return cp;
1926 }
1927
1928 /* Print out an insn with its operands, and update the info->insn_type
1929 fields. The prefix_opcodep and the rest hold a prefix insn that is
1930 supposed to be output as an address mode. */
1931
1932 static void
1933 print_with_operands (const struct cris_opcode *opcodep,
1934 unsigned int insn,
1935 unsigned char *buffer,
1936 bfd_vma addr,
1937 disassemble_info *info,
1938 /* If a prefix insn was before this insn (and is supposed
1939 to be output as an address), here is a description of
1940 it. */
1941 const struct cris_opcode *prefix_opcodep,
1942 unsigned int prefix_insn,
1943 unsigned char *prefix_buffer,
1944 bfd_boolean with_reg_prefix)
1945 {
1946 /* Get a buffer of somewhat reasonable size where we store
1947 intermediate parts of the insn. */
1948 char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2];
1949 char *tp = temp;
1950 static const char mode_char[] = "bwd?";
1951 const char *s;
1952 const char *cs;
1953 struct cris_disasm_data *disdata
1954 = (struct cris_disasm_data *) info->private_data;
1955
1956 /* Print out the name first thing we do. */
1957 (*info->fprintf_func) (info->stream, "%s", opcodep->name);
1958
1959 cs = opcodep->args;
1960 s = cs;
1961
1962 /* Ignore any prefix indicator. */
1963 if (*s == 'p')
1964 s++;
1965
1966 if (*s == 'm' || *s == 'M' || *s == 'z')
1967 {
1968 *tp++ = '.';
1969
1970 /* Get the size-letter. */
1971 *tp++ = *s == 'M'
1972 ? (insn & 0x8000 ? 'd'
1973 : insn & 0x4000 ? 'w' : 'b')
1974 : mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)];
1975
1976 /* Ignore the size and the space character that follows. */
1977 s += 2;
1978 }
1979
1980 /* Add a space if this isn't a long-branch, because for those will add
1981 the condition part of the name later. */
1982 if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256))
1983 *tp++ = ' ';
1984
1985 /* Fill in the insn-type if deducible from the name (and there's no
1986 better way). */
1987 if (opcodep->name[0] == 'j')
1988 {
1989 if (CONST_STRNEQ (opcodep->name, "jsr"))
1990 /* It's "jsr" or "jsrc". */
1991 info->insn_type = dis_jsr;
1992 else
1993 /* Any other jump-type insn is considered a branch. */
1994 info->insn_type = dis_branch;
1995 }
1996
1997 /* We might know some more fields right now. */
1998 info->branch_delay_insns = opcodep->delayed;
1999
2000 /* Handle operands. */
2001 for (; *s; s++)
2002 {
2003 switch (*s)
2004 {
2005 case 'T':
2006 tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix);
2007 break;
2008
2009 case 'A':
2010 if (with_reg_prefix)
2011 *tp++ = REGISTER_PREFIX_CHAR;
2012 *tp++ = 'a';
2013 *tp++ = 'c';
2014 *tp++ = 'r';
2015 break;
2016
2017 case '[':
2018 case ']':
2019 case ',':
2020 *tp++ = *s;
2021 break;
2022
2023 case '!':
2024 /* Ignore at this point; used at earlier stages to avoid
2025 recognition if there's a prefix at something that in other
2026 ways looks like a "pop". */
2027 break;
2028
2029 case 'd':
2030 /* Ignore. This is an optional ".d " on the large one of
2031 relaxable insns. */
2032 break;
2033
2034 case 'B':
2035 /* This was the prefix that made this a "push". We've already
2036 handled it by recognizing it, so signal that the prefix is
2037 handled by setting it to NULL. */
2038 prefix_opcodep = NULL;
2039 break;
2040
2041 case 'D':
2042 case 'r':
2043 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2044 break;
2045
2046 case 'R':
2047 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2048 break;
2049
2050 case 'n':
2051 {
2052 /* Like N but pc-relative to the start of the insn. */
2053 unsigned long number
2054 = (buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2055 + buffer[5] * 0x1000000 + addr);
2056
2057 /* Finish off and output previous formatted bytes. */
2058 *tp = 0;
2059 if (temp[0])
2060 (*info->fprintf_func) (info->stream, "%s", temp);
2061 tp = temp;
2062
2063 (*info->print_address_func) ((bfd_vma) number, info);
2064 }
2065 break;
2066
2067 case 'u':
2068 {
2069 /* Like n but the offset is bits <3:0> in the instruction. */
2070 unsigned long number = (buffer[0] & 0xf) * 2 + addr;
2071
2072 /* Finish off and output previous formatted bytes. */
2073 *tp = 0;
2074 if (temp[0])
2075 (*info->fprintf_func) (info->stream, "%s", temp);
2076 tp = temp;
2077
2078 (*info->print_address_func) ((bfd_vma) number, info);
2079 }
2080 break;
2081
2082 case 'N':
2083 case 'y':
2084 case 'Y':
2085 case 'S':
2086 case 's':
2087 /* Any "normal" memory operand. */
2088 if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL)
2089 {
2090 /* We're looking at [pc+], i.e. we need to output an immediate
2091 number, where the size can depend on different things. */
2092 long number;
2093 int signedp
2094 = ((*cs == 'z' && (insn & 0x20))
2095 || opcodep->match == BDAP_QUICK_OPCODE);
2096 int nbytes;
2097
2098 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2099 nbytes = 4;
2100 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2101 {
2102 const struct cris_spec_reg *sregp
2103 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2104
2105 /* A NULL return should have been as a non-match earlier,
2106 so catch it as an internal error in the error-case
2107 below. */
2108 if (sregp == NULL)
2109 /* Whatever non-valid size. */
2110 nbytes = 42;
2111 else
2112 /* PC is always incremented by a multiple of two.
2113 For CRISv32, immediates are always 4 bytes for
2114 special registers. */
2115 nbytes = disdata->distype == cris_dis_v32
2116 ? 4 : (sregp->reg_size + 1) & ~1;
2117 }
2118 else
2119 {
2120 int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3));
2121
2122 if (mode_size == 1)
2123 nbytes = 2;
2124 else
2125 nbytes = mode_size;
2126 }
2127
2128 switch (nbytes)
2129 {
2130 case 1:
2131 number = buffer[2];
2132 if (signedp && number > 127)
2133 number -= 256;
2134 break;
2135
2136 case 2:
2137 number = buffer[2] + buffer[3] * 256;
2138 if (signedp && number > 32767)
2139 number -= 65536;
2140 break;
2141
2142 case 4:
2143 number
2144 = buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2145 + buffer[5] * 0x1000000;
2146 break;
2147
2148 default:
2149 strcpy (tp, "bug");
2150 tp += 3;
2151 number = 42;
2152 }
2153
2154 if ((*cs == 'z' && (insn & 0x20))
2155 || (opcodep->match == BDAP_QUICK_OPCODE
2156 && (nbytes <= 2 || buffer[1 + nbytes] == 0)))
2157 tp = format_dec (number, tp, signedp);
2158 else
2159 {
2160 unsigned int highbyte = (number >> 24) & 0xff;
2161
2162 /* Either output this as an address or as a number. If it's
2163 a dword with the same high-byte as the address of the
2164 insn, assume it's an address, and also if it's a non-zero
2165 non-0xff high-byte. If this is a jsr or a jump, then
2166 it's definitely an address. */
2167 if (nbytes == 4
2168 && (highbyte == ((addr >> 24) & 0xff)
2169 || (highbyte != 0 && highbyte != 0xff)
2170 || info->insn_type == dis_branch
2171 || info->insn_type == dis_jsr))
2172 {
2173 /* Finish off and output previous formatted bytes. */
2174 *tp = 0;
2175 tp = temp;
2176 if (temp[0])
2177 (*info->fprintf_func) (info->stream, "%s", temp);
2178
2179 (*info->print_address_func) ((bfd_vma) number, info);
2180
2181 info->target = number;
2182 }
2183 else
2184 tp = format_hex (number, tp, disdata);
2185 }
2186 }
2187 else
2188 {
2189 /* Not an immediate number. Then this is a (possibly
2190 prefixed) memory operand. */
2191 if (info->insn_type != dis_nonbranch)
2192 {
2193 int mode_size
2194 = 1 << ((insn >> 4)
2195 & (opcodep->args[0] == 'z' ? 1 : 3));
2196 int size;
2197 info->insn_type = dis_dref;
2198 info->flags |= CRIS_DIS_FLAG_MEMREF;
2199
2200 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2201 size = 4;
2202 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2203 {
2204 const struct cris_spec_reg *sregp
2205 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2206
2207 /* FIXME: Improve error handling; should have been caught
2208 earlier. */
2209 if (sregp == NULL)
2210 size = 4;
2211 else
2212 size = sregp->reg_size;
2213 }
2214 else
2215 size = mode_size;
2216
2217 info->data_size = size;
2218 }
2219
2220 *tp++ = '[';
2221
2222 if (prefix_opcodep
2223 /* We don't match dip with a postincremented field
2224 as a side-effect address mode. */
2225 && ((insn & 0x400) == 0
2226 || prefix_opcodep->match != DIP_OPCODE))
2227 {
2228 if (insn & 0x400)
2229 {
2230 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2231 *tp++ = '=';
2232 }
2233
2234
2235 /* We mainly ignore the prefix format string when the
2236 address-mode syntax is output. */
2237 switch (prefix_opcodep->match)
2238 {
2239 case DIP_OPCODE:
2240 /* It's [r], [r+] or [pc+]. */
2241 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2242 {
2243 /* It's [pc+]. This cannot possibly be anything
2244 but an address. */
2245 unsigned long number
2246 = prefix_buffer[2] + prefix_buffer[3] * 256
2247 + prefix_buffer[4] * 65536
2248 + prefix_buffer[5] * 0x1000000;
2249
2250 info->target = (bfd_vma) number;
2251
2252 /* Finish off and output previous formatted
2253 data. */
2254 *tp = 0;
2255 tp = temp;
2256 if (temp[0])
2257 (*info->fprintf_func) (info->stream, "%s", temp);
2258
2259 (*info->print_address_func) ((bfd_vma) number, info);
2260 }
2261 else
2262 {
2263 /* For a memref in an address, we use target2.
2264 In this case, target is zero. */
2265 info->flags
2266 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2267 | CRIS_DIS_FLAG_MEM_TARGET2_MEM);
2268
2269 info->target2 = prefix_insn & 15;
2270
2271 *tp++ = '[';
2272 tp = format_reg (disdata, prefix_insn & 15, tp,
2273 with_reg_prefix);
2274 if (prefix_insn & 0x400)
2275 *tp++ = '+';
2276 *tp++ = ']';
2277 }
2278 break;
2279
2280 case BDAP_QUICK_OPCODE:
2281 {
2282 int number;
2283
2284 number = prefix_buffer[0];
2285 if (number > 127)
2286 number -= 256;
2287
2288 /* Output "reg+num" or, if num < 0, "reg-num". */
2289 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2290 with_reg_prefix);
2291 if (number >= 0)
2292 *tp++ = '+';
2293 tp = format_dec (number, tp, 1);
2294
2295 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2296 info->target = (prefix_insn >> 12) & 15;
2297 info->target2 = (bfd_vma) number;
2298 break;
2299 }
2300
2301 case BIAP_OPCODE:
2302 /* Output "r+R.m". */
2303 tp = format_reg (disdata, prefix_insn & 15, tp,
2304 with_reg_prefix);
2305 *tp++ = '+';
2306 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2307 with_reg_prefix);
2308 *tp++ = '.';
2309 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2310
2311 info->flags
2312 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2313 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2314
2315 | ((prefix_insn & 0x8000)
2316 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT4
2317 : ((prefix_insn & 0x8000)
2318 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0)));
2319
2320 /* Is it the casejump? It's a "adds.w [pc+r%d.w],pc". */
2321 if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f)
2322 /* Then start interpreting data as offsets. */
2323 case_offset_counter = no_of_case_offsets;
2324 break;
2325
2326 case BDAP_INDIR_OPCODE:
2327 /* Output "r+s.m", or, if "s" is [pc+], "r+s" or
2328 "r-s". */
2329 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2330 with_reg_prefix);
2331
2332 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2333 {
2334 long number;
2335 unsigned int nbytes;
2336
2337 /* It's a value. Get its size. */
2338 int mode_size = 1 << ((prefix_insn >> 4) & 3);
2339
2340 if (mode_size == 1)
2341 nbytes = 2;
2342 else
2343 nbytes = mode_size;
2344
2345 switch (nbytes)
2346 {
2347 case 1:
2348 number = prefix_buffer[2];
2349 if (number > 127)
2350 number -= 256;
2351 break;
2352
2353 case 2:
2354 number = prefix_buffer[2] + prefix_buffer[3] * 256;
2355 if (number > 32767)
2356 number -= 65536;
2357 break;
2358
2359 case 4:
2360 number
2361 = prefix_buffer[2] + prefix_buffer[3] * 256
2362 + prefix_buffer[4] * 65536
2363 + prefix_buffer[5] * 0x1000000;
2364 break;
2365
2366 default:
2367 strcpy (tp, "bug");
2368 tp += 3;
2369 number = 42;
2370 }
2371
2372 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2373 info->target2 = (bfd_vma) number;
2374
2375 /* If the size is dword, then assume it's an
2376 address. */
2377 if (nbytes == 4)
2378 {
2379 /* Finish off and output previous formatted
2380 bytes. */
2381 *tp++ = '+';
2382 *tp = 0;
2383 tp = temp;
2384 (*info->fprintf_func) (info->stream, "%s", temp);
2385
2386 (*info->print_address_func) ((bfd_vma) number, info);
2387 }
2388 else
2389 {
2390 if (number >= 0)
2391 *tp++ = '+';
2392 tp = format_dec (number, tp, 1);
2393 }
2394 }
2395 else
2396 {
2397 /* Output "r+[R].m" or "r+[R+].m". */
2398 *tp++ = '+';
2399 *tp++ = '[';
2400 tp = format_reg (disdata, prefix_insn & 15, tp,
2401 with_reg_prefix);
2402 if (prefix_insn & 0x400)
2403 *tp++ = '+';
2404 *tp++ = ']';
2405 *tp++ = '.';
2406 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2407
2408 info->flags
2409 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2410 | CRIS_DIS_FLAG_MEM_TARGET2_MEM
2411 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2412
2413 | (((prefix_insn >> 4) == 2)
2414 ? 0
2415 : (((prefix_insn >> 4) & 3) == 1
2416 ? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD
2417 : CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE)));
2418 }
2419 break;
2420
2421 default:
2422 (*info->fprintf_func) (info->stream, "?prefix-bug");
2423 }
2424
2425 /* To mark that the prefix is used, reset it. */
2426 prefix_opcodep = NULL;
2427 }
2428 else
2429 {
2430 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2431
2432 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2433 info->target = insn & 15;
2434
2435 if (insn & 0x400)
2436 *tp++ = '+';
2437 }
2438 *tp++ = ']';
2439 }
2440 break;
2441
2442 case 'x':
2443 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2444 *tp++ = '.';
2445 *tp++ = mode_char[(insn >> 4) & 3];
2446 break;
2447
2448 case 'I':
2449 tp = format_dec (insn & 63, tp, 0);
2450 break;
2451
2452 case 'b':
2453 {
2454 int where = buffer[2] + buffer[3] * 256;
2455
2456 if (where > 32767)
2457 where -= 65536;
2458
2459 where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4);
2460
2461 if (insn == BA_PC_INCR_OPCODE)
2462 info->insn_type = dis_branch;
2463 else
2464 info->insn_type = dis_condbranch;
2465
2466 info->target = (bfd_vma) where;
2467
2468 *tp = 0;
2469 tp = temp;
2470 (*info->fprintf_func) (info->stream, "%s%s ",
2471 temp, cris_cc_strings[insn >> 12]);
2472
2473 (*info->print_address_func) ((bfd_vma) where, info);
2474 }
2475 break;
2476
2477 case 'c':
2478 tp = format_dec (insn & 31, tp, 0);
2479 break;
2480
2481 case 'C':
2482 tp = format_dec (insn & 15, tp, 0);
2483 break;
2484
2485 case 'o':
2486 {
2487 long offset = insn & 0xfe;
2488 bfd_vma target;
2489
2490 if (insn & 1)
2491 offset |= ~0xff;
2492
2493 if (opcodep->match == BA_QUICK_OPCODE)
2494 info->insn_type = dis_branch;
2495 else
2496 info->insn_type = dis_condbranch;
2497
2498 target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset;
2499 info->target = target;
2500 *tp = 0;
2501 tp = temp;
2502 (*info->fprintf_func) (info->stream, "%s", temp);
2503 (*info->print_address_func) (target, info);
2504 }
2505 break;
2506
2507 case 'Q':
2508 case 'O':
2509 {
2510 long number = buffer[0];
2511
2512 if (number > 127)
2513 number = number - 256;
2514
2515 tp = format_dec (number, tp, 1);
2516 *tp++ = ',';
2517 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2518 }
2519 break;
2520
2521 case 'f':
2522 tp = print_flags (disdata, insn, tp);
2523 break;
2524
2525 case 'i':
2526 tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1);
2527 break;
2528
2529 case 'P':
2530 {
2531 const struct cris_spec_reg *sregp
2532 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2533
2534 if (sregp->name == NULL)
2535 /* Should have been caught as a non-match eariler. */
2536 *tp++ = '?';
2537 else
2538 {
2539 if (with_reg_prefix)
2540 *tp++ = REGISTER_PREFIX_CHAR;
2541 strcpy (tp, sregp->name);
2542 tp += strlen (tp);
2543 }
2544 }
2545 break;
2546
2547 default:
2548 strcpy (tp, "???");
2549 tp += 3;
2550 }
2551 }
2552
2553 *tp = 0;
2554
2555 if (prefix_opcodep)
2556 (*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")",
2557 prefix_opcodep->name, prefix_opcodep->args);
2558
2559 (*info->fprintf_func) (info->stream, "%s", temp);
2560
2561 /* Get info for matching case-tables, if we don't have any active.
2562 We assume that the last constant seen is used; either in the insn
2563 itself or in a "move.d const,rN, sub.d rN,rM"-like sequence. */
2564 if (TRACE_CASE && case_offset_counter == 0)
2565 {
2566 if (CONST_STRNEQ (opcodep->name, "sub"))
2567 case_offset = last_immediate;
2568
2569 /* It could also be an "add", if there are negative case-values. */
2570 else if (CONST_STRNEQ (opcodep->name, "add"))
2571 /* The first case is the negated operand to the add. */
2572 case_offset = -last_immediate;
2573
2574 /* A bound insn will tell us the number of cases. */
2575 else if (CONST_STRNEQ (opcodep->name, "bound"))
2576 no_of_case_offsets = last_immediate + 1;
2577
2578 /* A jump or jsr or branch breaks the chain of insns for a
2579 case-table, so assume default first-case again. */
2580 else if (info->insn_type == dis_jsr
2581 || info->insn_type == dis_branch
2582 || info->insn_type == dis_condbranch)
2583 case_offset = 0;
2584 }
2585 }
2586
2587
2588 /* Print the CRIS instruction at address memaddr on stream. Returns
2589 length of the instruction, in bytes. Prefix register names with `$' if
2590 WITH_REG_PREFIX. */
2591
2592 static int
2593 print_insn_cris_generic (bfd_vma memaddr,
2594 disassemble_info *info,
2595 bfd_boolean with_reg_prefix)
2596 {
2597 int nbytes;
2598 unsigned int insn;
2599 const struct cris_opcode *matchedp;
2600 int advance = 0;
2601 struct cris_disasm_data *disdata
2602 = (struct cris_disasm_data *) info->private_data;
2603
2604 /* No instruction will be disassembled as longer than this number of
2605 bytes; stacked prefixes will not be expanded. */
2606 unsigned char buffer[MAX_BYTES_PER_CRIS_INSN];
2607 unsigned char *bufp;
2608 int status = 0;
2609 bfd_vma addr;
2610
2611 /* There will be an "out of range" error after the last instruction.
2612 Reading pairs of bytes in decreasing number, we hope that we will get
2613 at least the amount that we will consume.
2614
2615 If we can't get any data, or we do not get enough data, we print
2616 the error message. */
2617
2618 nbytes = info->buffer_length;
2619 if (nbytes > MAX_BYTES_PER_CRIS_INSN)
2620 nbytes = MAX_BYTES_PER_CRIS_INSN;
2621 status = (*info->read_memory_func) (memaddr, buffer, nbytes, info);
2622
2623 /* If we did not get all we asked for, then clear the rest.
2624 Hopefully this makes a reproducible result in case of errors. */
2625 if (nbytes != MAX_BYTES_PER_CRIS_INSN)
2626 memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes);
2627
2628 addr = memaddr;
2629 bufp = buffer;
2630
2631 /* Set some defaults for the insn info. */
2632 info->insn_info_valid = 1;
2633 info->branch_delay_insns = 0;
2634 info->data_size = 0;
2635 info->insn_type = dis_nonbranch;
2636 info->flags = 0;
2637 info->target = 0;
2638 info->target2 = 0;
2639
2640 /* If we got any data, disassemble it. */
2641 if (nbytes != 0)
2642 {
2643 matchedp = NULL;
2644
2645 insn = bufp[0] + bufp[1] * 256;
2646
2647 /* If we're in a case-table, don't disassemble the offsets. */
2648 if (TRACE_CASE && case_offset_counter != 0)
2649 {
2650 info->insn_type = dis_noninsn;
2651 advance += 2;
2652
2653 /* If to print data as offsets, then shortcut here. */
2654 (*info->fprintf_func) (info->stream, "case %ld%s: -> ",
2655 case_offset + no_of_case_offsets
2656 - case_offset_counter,
2657 case_offset_counter == 1 ? "/default" :
2658 "");
2659
2660 (*info->print_address_func) ((bfd_vma)
2661 ((short) (insn)
2662 + (long) (addr
2663 - (no_of_case_offsets
2664 - case_offset_counter)
2665 * 2)), info);
2666 case_offset_counter--;
2667
2668 /* The default case start (without a "sub" or "add") must be
2669 zero. */
2670 if (case_offset_counter == 0)
2671 case_offset = 0;
2672 }
2673 else if (insn == 0)
2674 {
2675 /* We're often called to disassemble zeroes. While this is a
2676 valid "bcc .+2" insn, it is also useless enough and enough
2677 of a nuiscance that we will just output "bcc .+2" for it
2678 and signal it as a noninsn. */
2679 (*info->fprintf_func) (info->stream,
2680 disdata->distype == cris_dis_v32
2681 ? "bcc ." : "bcc .+2");
2682 info->insn_type = dis_noninsn;
2683 advance += 2;
2684 }
2685 else
2686 {
2687 const struct cris_opcode *prefix_opcodep = NULL;
2688 unsigned char *prefix_buffer = bufp;
2689 unsigned int prefix_insn = insn;
2690 int prefix_size = 0;
2691
2692 matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata);
2693
2694 /* Check if we're supposed to write out prefixes as address
2695 modes and if this was a prefix. */
2696 if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p')
2697 {
2698 /* If it's a prefix, put it into the prefix vars and get the
2699 main insn. */
2700 prefix_size = bytes_to_skip (prefix_insn, matchedp,
2701 disdata->distype, NULL);
2702 prefix_opcodep = matchedp;
2703
2704 insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256;
2705 matchedp = get_opcode_entry (insn, prefix_insn, disdata);
2706
2707 if (matchedp != NULL)
2708 {
2709 addr += prefix_size;
2710 bufp += prefix_size;
2711 advance += prefix_size;
2712 }
2713 else
2714 {
2715 /* The "main" insn wasn't valid, at least not when
2716 prefixed. Put back things enough to output the
2717 prefix insn only, as a normal insn. */
2718 matchedp = prefix_opcodep;
2719 insn = prefix_insn;
2720 prefix_opcodep = NULL;
2721 }
2722 }
2723
2724 if (matchedp == NULL)
2725 {
2726 (*info->fprintf_func) (info->stream, "??0x%x", insn);
2727 advance += 2;
2728
2729 info->insn_type = dis_noninsn;
2730 }
2731 else
2732 {
2733 advance
2734 += bytes_to_skip (insn, matchedp, disdata->distype,
2735 prefix_opcodep);
2736
2737 /* The info_type and assorted fields will be set according
2738 to the operands. */
2739 print_with_operands (matchedp, insn, bufp, addr, info,
2740 prefix_opcodep, prefix_insn,
2741 prefix_buffer, with_reg_prefix);
2742 }
2743 }
2744 }
2745 else
2746 info->insn_type = dis_noninsn;
2747
2748 /* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error
2749 status when reading that much, and the insn decoding indicated a
2750 length exceeding what we read, there is an error. */
2751 if (status != 0 && (nbytes == 0 || advance > nbytes))
2752 {
2753 (*info->memory_error_func) (status, memaddr, info);
2754 return -1;
2755 }
2756
2757 /* Max supported insn size with one folded prefix insn. */
2758 info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN;
2759
2760 /* I would like to set this to a fixed value larger than the actual
2761 number of bytes to print in order to avoid spaces between bytes,
2762 but objdump.c (2.9.1) does not like that, so we print 16-bit
2763 chunks, which is the next choice. */
2764 info->bytes_per_chunk = 2;
2765
2766 /* Printing bytes in order of increasing addresses makes sense,
2767 especially on a little-endian target.
2768 This is completely the opposite of what you think; setting this to
2769 BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N
2770 we want. */
2771 info->display_endian = BFD_ENDIAN_BIG;
2772
2773 return advance;
2774 }
2775
2776 /* Disassemble, prefixing register names with `$'. CRIS v0..v10. */
2777 #if 0
2778 static int
2779 print_insn_cris_with_register_prefix (bfd_vma vma,
2780 disassemble_info *info)
2781 {
2782 if (info->private_data == NULL
2783 && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
2784 return -1;
2785 return print_insn_cris_generic (vma, info, TRUE);
2786 }
2787 #endif
2788 /* Disassemble, prefixing register names with `$'. CRIS v32. */
2789
2790 static int
2791 print_insn_crisv32_with_register_prefix (bfd_vma vma,
2792 disassemble_info *info)
2793 {
2794 if (info->private_data == NULL
2795 && !cris_parse_disassembler_options (info, cris_dis_v32))
2796 return -1;
2797 return print_insn_cris_generic (vma, info, TRUE);
2798 }
2799
2800 #if 0
2801 /* Disassemble, prefixing register names with `$'.
2802 Common v10 and v32 subset. */
2803
2804 static int
2805 print_insn_crisv10_v32_with_register_prefix (bfd_vma vma,
2806 disassemble_info *info)
2807 {
2808 if (info->private_data == NULL
2809 && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
2810 return -1;
2811 return print_insn_cris_generic (vma, info, TRUE);
2812 }
2813
2814 /* Disassemble, no prefixes on register names. CRIS v0..v10. */
2815
2816 static int
2817 print_insn_cris_without_register_prefix (bfd_vma vma,
2818 disassemble_info *info)
2819 {
2820 if (info->private_data == NULL
2821 && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
2822 return -1;
2823 return print_insn_cris_generic (vma, info, FALSE);
2824 }
2825
2826 /* Disassemble, no prefixes on register names. CRIS v32. */
2827
2828 static int
2829 print_insn_crisv32_without_register_prefix (bfd_vma vma,
2830 disassemble_info *info)
2831 {
2832 if (info->private_data == NULL
2833 && !cris_parse_disassembler_options (info, cris_dis_v32))
2834 return -1;
2835 return print_insn_cris_generic (vma, info, FALSE);
2836 }
2837
2838 /* Disassemble, no prefixes on register names.
2839 Common v10 and v32 subset. */
2840
2841 static int
2842 print_insn_crisv10_v32_without_register_prefix (bfd_vma vma,
2843 disassemble_info *info)
2844 {
2845 if (info->private_data == NULL
2846 && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
2847 return -1;
2848 return print_insn_cris_generic (vma, info, FALSE);
2849 }
2850 #endif
2851
2852 int
2853 print_insn_crisv32 (bfd_vma vma,
2854 disassemble_info *info)
2855 {
2856 return print_insn_crisv32_with_register_prefix(vma, info);
2857 }
2858
2859 /* Return a disassembler-function that prints registers with a `$' prefix,
2860 or one that prints registers without a prefix.
2861 FIXME: We should improve the solution to avoid the multitude of
2862 functions seen above. */
2863 #if 0
2864 disassembler_ftype
2865 cris_get_disassembler (bfd *abfd)
2866 {
2867 /* If there's no bfd in sight, we return what is valid as input in all
2868 contexts if fed back to the assembler: disassembly *with* register
2869 prefix. Unfortunately this will be totally wrong for v32. */
2870 if (abfd == NULL)
2871 return print_insn_cris_with_register_prefix;
2872
2873 if (bfd_get_symbol_leading_char (abfd) == 0)
2874 {
2875 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2876 return print_insn_crisv32_with_register_prefix;
2877 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2878 return print_insn_crisv10_v32_with_register_prefix;
2879
2880 /* We default to v10. This may be specifically specified in the
2881 bfd mach, but is also the default setting. */
2882 return print_insn_cris_with_register_prefix;
2883 }
2884
2885 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2886 return print_insn_crisv32_without_register_prefix;
2887 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2888 return print_insn_crisv10_v32_without_register_prefix;
2889 return print_insn_cris_without_register_prefix;
2890 }
2891 #endif
2892 /* Local variables:
2893 eval: (c-set-style "gnu")
2894 indent-tabs-mode: t
2895 End: */
Samsung s3c2440 and arm920t support for the mini2440 dev board