?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Move dis-* selection to configure
[qemu/cris-port.git] / cris-dis.c
blobf6932a0568663364c463aa51611c5116398377c7
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, see <http://www.gnu.org/licenses/>. */
20
21 #include "dis-asm.h"
22 //#include "sysdep.h"
23 #include "target-cris/opcode-cris.h"
24 //#include "libiberty.h"
25 \f
26
27 void *qemu_malloc(size_t len); /* can't include qemu-common.h here */
28
29 #define FALSE 0
30 #define TRUE 1
31 #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0)
32
33 /* cris-opc.c -- Table of opcodes for the CRIS processor.
34 Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
35 Contributed by Axis Communications AB, Lund, Sweden.
36 Originally written for GAS 1.38.1 by Mikael Asker.
37 Reorganized by Hans-Peter Nilsson.
38
39 This file is part of GAS, GDB and the GNU binutils.
40
41 GAS, GDB, and GNU binutils is free software; you can redistribute it
42 and/or modify it under the terms of the GNU General Public License as
43 published by the Free Software Foundation; either version 2, or (at your
44 option) any later version.
45
46 GAS, GDB, and GNU binutils are distributed in the hope that they will be
47 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
48 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
49 GNU General Public License for more details.
50
51 You should have received a copy of the GNU General Public License
52 along with this program; if not, see <http://www.gnu.org/licenses/>. */
53
54 #ifndef NULL
55 #define NULL (0)
56 #endif
57
58 /* This table isn't used for CRISv32 and the size of immediate operands. */
59 const struct cris_spec_reg
60 cris_spec_regs[] =
61 {
62 {"bz", 0, 1, cris_ver_v32p, NULL},
63 {"p0", 0, 1, 0, NULL},
64 {"vr", 1, 1, 0, NULL},
65 {"p1", 1, 1, 0, NULL},
66 {"pid", 2, 1, cris_ver_v32p, NULL},
67 {"p2", 2, 1, cris_ver_v32p, NULL},
68 {"p2", 2, 1, cris_ver_warning, NULL},
69 {"srs", 3, 1, cris_ver_v32p, NULL},
70 {"p3", 3, 1, cris_ver_v32p, NULL},
71 {"p3", 3, 1, cris_ver_warning, NULL},
72 {"wz", 4, 2, cris_ver_v32p, NULL},
73 {"p4", 4, 2, 0, NULL},
74 {"ccr", 5, 2, cris_ver_v0_10, NULL},
75 {"exs", 5, 4, cris_ver_v32p, NULL},
76 {"p5", 5, 2, cris_ver_v0_10, NULL},
77 {"p5", 5, 4, cris_ver_v32p, NULL},
78 {"dcr0",6, 2, cris_ver_v0_3, NULL},
79 {"eda", 6, 4, cris_ver_v32p, NULL},
80 {"p6", 6, 2, cris_ver_v0_3, NULL},
81 {"p6", 6, 4, cris_ver_v32p, NULL},
82 {"dcr1/mof", 7, 4, cris_ver_v10p,
83 "Register `dcr1/mof' with ambiguous size specified. Guessing 4 bytes"},
84 {"dcr1/mof", 7, 2, cris_ver_v0_3,
85 "Register `dcr1/mof' with ambiguous size specified. Guessing 2 bytes"},
86 {"mof", 7, 4, cris_ver_v10p, NULL},
87 {"dcr1",7, 2, cris_ver_v0_3, NULL},
88 {"p7", 7, 4, cris_ver_v10p, NULL},
89 {"p7", 7, 2, cris_ver_v0_3, NULL},
90 {"dz", 8, 4, cris_ver_v32p, NULL},
91 {"p8", 8, 4, 0, NULL},
92 {"ibr", 9, 4, cris_ver_v0_10, NULL},
93 {"ebp", 9, 4, cris_ver_v32p, NULL},
94 {"p9", 9, 4, 0, NULL},
95 {"irp", 10, 4, cris_ver_v0_10, NULL},
96 {"erp", 10, 4, cris_ver_v32p, NULL},
97 {"p10", 10, 4, 0, NULL},
98 {"srp", 11, 4, 0, NULL},
99 {"p11", 11, 4, 0, NULL},
100 /* For disassembly use only. Accept at assembly with a warning. */
101 {"bar/dtp0", 12, 4, cris_ver_warning,
102 "Ambiguous register `bar/dtp0' specified"},
103 {"nrp", 12, 4, cris_ver_v32p, NULL},
104 {"bar", 12, 4, cris_ver_v8_10, NULL},
105 {"dtp0",12, 4, cris_ver_v0_3, NULL},
106 {"p12", 12, 4, 0, NULL},
107 /* For disassembly use only. Accept at assembly with a warning. */
108 {"dccr/dtp1",13, 4, cris_ver_warning,
109 "Ambiguous register `dccr/dtp1' specified"},
110 {"ccs", 13, 4, cris_ver_v32p, NULL},
111 {"dccr",13, 4, cris_ver_v8_10, NULL},
112 {"dtp1",13, 4, cris_ver_v0_3, NULL},
113 {"p13", 13, 4, 0, NULL},
114 {"brp", 14, 4, cris_ver_v3_10, NULL},
115 {"usp", 14, 4, cris_ver_v32p, NULL},
116 {"p14", 14, 4, cris_ver_v3p, NULL},
117 {"usp", 15, 4, cris_ver_v10, NULL},
118 {"spc", 15, 4, cris_ver_v32p, NULL},
119 {"p15", 15, 4, cris_ver_v10p, NULL},
120 {NULL, 0, 0, cris_ver_version_all, NULL}
121 };
122
123 /* Add version specifiers to this table when necessary.
124 The (now) regular coding of register names suggests a simpler
125 implementation. */
126 const struct cris_support_reg cris_support_regs[] =
127 {
128 {"s0", 0},
129 {"s1", 1},
130 {"s2", 2},
131 {"s3", 3},
132 {"s4", 4},
133 {"s5", 5},
134 {"s6", 6},
135 {"s7", 7},
136 {"s8", 8},
137 {"s9", 9},
138 {"s10", 10},
139 {"s11", 11},
140 {"s12", 12},
141 {"s13", 13},
142 {"s14", 14},
143 {"s15", 15},
144 {NULL, 0}
145 };
146
147 /* All CRIS opcodes are 16 bits.
148
149 - The match component is a mask saying which bits must match a
150 particular opcode in order for an instruction to be an instance
151 of that opcode.
152
153 - The args component is a string containing characters symbolically
154 matching the operands of an instruction. Used for both assembly
155 and disassembly.
156
157 Operand-matching characters:
158 [ ] , space
159 Verbatim.
160 A The string "ACR" (case-insensitive).
161 B Not really an operand. It causes a "BDAP -size,SP" prefix to be
162 output for the PUSH alias-instructions and recognizes a push-
163 prefix at disassembly. This letter isn't recognized for v32.
164 Must be followed by a R or P letter.
165 ! Non-match pattern, will not match if there's a prefix insn.
166 b Non-matching operand, used for branches with 16-bit
167 displacement. Only recognized by the disassembler.
168 c 5-bit unsigned immediate in bits <4:0>.
169 C 4-bit unsigned immediate in bits <3:0>.
170 d At assembly, optionally (as in put other cases before this one)
171 ".d" or ".D" at the start of the operands, followed by one space
172 character. At disassembly, nothing.
173 D General register in bits <15:12> and <3:0>.
174 f List of flags in bits <15:12> and <3:0>.
175 i 6-bit signed immediate in bits <5:0>.
176 I 6-bit unsigned immediate in bits <5:0>.
177 M Size modifier (B, W or D) for CLEAR instructions.
178 m Size modifier (B, W or D) in bits <5:4>
179 N A 32-bit dword, like in the difference between s and y.
180 This has no effect on bits in the opcode. Can also be expressed
181 as "[pc+]" in input.
182 n As N, but PC-relative (to the start of the instruction).
183 o [-128..127] word offset in bits <7:1> and <0>. Used by 8-bit
184 branch instructions.
185 O [-128..127] offset in bits <7:0>. Also matches a comma and a
186 general register after the expression, in bits <15:12>. Used
187 only for the BDAP prefix insn (in v32 the ADDOQ insn; same opcode).
188 P Special register in bits <15:12>.
189 p Indicates that the insn is a prefix insn. Must be first
190 character.
191 Q As O, but don't relax; force an 8-bit offset.
192 R General register in bits <15:12>.
193 r General register in bits <3:0>.
194 S Source operand in bit <10> and a prefix; a 3-operand prefix
195 without side-effect.
196 s Source operand in bits <10> and <3:0>, optionally with a
197 side-effect prefix, except [pc] (the name, not R15 as in ACR)
198 isn't allowed for v32 and higher.
199 T Support register in bits <15:12>.
200 u 4-bit (PC-relative) unsigned immediate word offset in bits <3:0>.
201 U Relaxes to either u or n, instruction is assumed LAPCQ or LAPC.
202 Not recognized at disassembly.
203 x Register-dot-modifier, for example "r5.w" in bits <15:12> and <5:4>.
204 y Like 's' but do not allow an integer at assembly.
205 Y The difference s-y; only an integer is allowed.
206 z Size modifier (B or W) in bit <4>. */
207
208
209 /* Please note the order of the opcodes in this table is significant.
210 The assembler requires that all instances of the same mnemonic must
211 be consecutive. If they aren't, the assembler might not recognize
212 them, or may indicate an internal error.
213
214 The disassembler should not normally care about the order of the
215 opcodes, but will prefer an earlier alternative if the "match-score"
216 (see cris-dis.c) is computed as equal.
217
218 It should not be significant for proper execution that this table is
219 in alphabetical order, but please follow that convention for an easy
220 overview. */
221
222 const struct cris_opcode
223 cris_opcodes[] =
224 {
225 {"abs", 0x06B0, 0x0940, "r,R", 0, SIZE_NONE, 0,
226 cris_abs_op},
227
228 {"add", 0x0600, 0x09c0, "m r,R", 0, SIZE_NONE, 0,
229 cris_reg_mode_add_sub_cmp_and_or_move_op},
230
231 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD, 0,
232 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
233
234 {"add", 0x0A00, 0x01c0, "m S,D", 0, SIZE_NONE,
235 cris_ver_v0_10,
236 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
237
238 {"add", 0x0a00, 0x05c0, "m S,R,r", 0, SIZE_NONE,
239 cris_ver_v0_10,
240 cris_three_operand_add_sub_cmp_and_or_op},
241
242 {"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD,
243 cris_ver_v32p,
244 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
245
246 {"addc", 0x0570, 0x0A80, "r,R", 0, SIZE_FIX_32,
247 cris_ver_v32p,
248 cris_not_implemented_op},
249
250 {"addc", 0x09A0, 0x0250, "s,R", 0, SIZE_FIX_32,
251 cris_ver_v32p,
252 cris_not_implemented_op},
253
254 {"addi", 0x0540, 0x0A80, "x,r,A", 0, SIZE_NONE,
255 cris_ver_v32p,
256 cris_addi_op},
257
258 {"addi", 0x0500, 0x0Ac0, "x,r", 0, SIZE_NONE, 0,
259 cris_addi_op},
260
261 /* This collates after "addo", but we want to disassemble as "addoq",
262 not "addo". */
263 {"addoq", 0x0100, 0x0E00, "Q,A", 0, SIZE_NONE,
264 cris_ver_v32p,
265 cris_not_implemented_op},
266
267 {"addo", 0x0940, 0x0280, "m s,R,A", 0, SIZE_FIELD_SIGNED,
268 cris_ver_v32p,
269 cris_not_implemented_op},
270
271 /* This must be located after the insn above, lest we misinterpret
272 "addo.b -1,r0,acr" as "addo .b-1,r0,acr". FIXME: Sounds like a
273 parser bug. */
274 {"addo", 0x0100, 0x0E00, "O,A", 0, SIZE_NONE,
275 cris_ver_v32p,
276 cris_not_implemented_op},
277
278 {"addq", 0x0200, 0x0Dc0, "I,R", 0, SIZE_NONE, 0,
279 cris_quick_mode_add_sub_op},
280
281 {"adds", 0x0420, 0x0Bc0, "z r,R", 0, SIZE_NONE, 0,
282 cris_reg_mode_add_sub_cmp_and_or_move_op},
283
284 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
285 {"adds", 0x0820, 0x03c0, "z s,R", 0, SIZE_FIELD, 0,
286 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
287
288 {"adds", 0x0820, 0x03c0, "z S,D", 0, SIZE_NONE,
289 cris_ver_v0_10,
290 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
291
292 {"adds", 0x0820, 0x07c0, "z S,R,r", 0, SIZE_NONE,
293 cris_ver_v0_10,
294 cris_three_operand_add_sub_cmp_and_or_op},
295
296 {"addu", 0x0400, 0x0be0, "z r,R", 0, SIZE_NONE, 0,
297 cris_reg_mode_add_sub_cmp_and_or_move_op},
298
299 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
300 {"addu", 0x0800, 0x03e0, "z s,R", 0, SIZE_FIELD, 0,
301 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
302
303 {"addu", 0x0800, 0x03e0, "z S,D", 0, SIZE_NONE,
304 cris_ver_v0_10,
305 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
306
307 {"addu", 0x0800, 0x07e0, "z S,R,r", 0, SIZE_NONE,
308 cris_ver_v0_10,
309 cris_three_operand_add_sub_cmp_and_or_op},
310
311 {"and", 0x0700, 0x08C0, "m r,R", 0, SIZE_NONE, 0,
312 cris_reg_mode_add_sub_cmp_and_or_move_op},
313
314 {"and", 0x0B00, 0x00C0, "m s,R", 0, SIZE_FIELD, 0,
315 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
316
317 {"and", 0x0B00, 0x00C0, "m S,D", 0, SIZE_NONE,
318 cris_ver_v0_10,
319 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
320
321 {"and", 0x0B00, 0x04C0, "m S,R,r", 0, SIZE_NONE,
322 cris_ver_v0_10,
323 cris_three_operand_add_sub_cmp_and_or_op},
324
325 {"andq", 0x0300, 0x0CC0, "i,R", 0, SIZE_NONE, 0,
326 cris_quick_mode_and_cmp_move_or_op},
327
328 {"asr", 0x0780, 0x0840, "m r,R", 0, SIZE_NONE, 0,
329 cris_asr_op},
330
331 {"asrq", 0x03a0, 0x0c40, "c,R", 0, SIZE_NONE, 0,
332 cris_asrq_op},
333
334 {"ax", 0x15B0, 0xEA4F, "", 0, SIZE_NONE, 0,
335 cris_ax_ei_setf_op},
336
337 /* FIXME: Should use branch #defines. */
338 {"b", 0x0dff, 0x0200, "b", 1, SIZE_NONE, 0,
339 cris_sixteen_bit_offset_branch_op},
340
341 {"ba",
342 BA_QUICK_OPCODE,
343 0x0F00+(0xF-CC_A)*0x1000, "o", 1, SIZE_NONE, 0,
344 cris_eight_bit_offset_branch_op},
345
346 /* Needs to come after the usual "ba o", which might be relaxed to
347 this one. */
348 {"ba", BA_DWORD_OPCODE,
349 0xffff & (~BA_DWORD_OPCODE), "n", 0, SIZE_FIX_32,
350 cris_ver_v32p,
351 cris_none_reg_mode_jump_op},
352
353 {"bas", 0x0EBF, 0x0140, "n,P", 0, SIZE_FIX_32,
354 cris_ver_v32p,
355 cris_none_reg_mode_jump_op},
356
357 {"basc", 0x0EFF, 0x0100, "n,P", 0, SIZE_FIX_32,
358 cris_ver_v32p,
359 cris_none_reg_mode_jump_op},
360
361 {"bcc",
362 BRANCH_QUICK_OPCODE+CC_CC*0x1000,
363 0x0f00+(0xF-CC_CC)*0x1000, "o", 1, SIZE_NONE, 0,
364 cris_eight_bit_offset_branch_op},
365
366 {"bcs",
367 BRANCH_QUICK_OPCODE+CC_CS*0x1000,
368 0x0f00+(0xF-CC_CS)*0x1000, "o", 1, SIZE_NONE, 0,
369 cris_eight_bit_offset_branch_op},
370
371 {"bdap",
372 BDAP_INDIR_OPCODE, BDAP_INDIR_Z_BITS, "pm s,R", 0, SIZE_FIELD_SIGNED,
373 cris_ver_v0_10,
374 cris_bdap_prefix},
375
376 {"bdap",
377 BDAP_QUICK_OPCODE, BDAP_QUICK_Z_BITS, "pO", 0, SIZE_NONE,
378 cris_ver_v0_10,
379 cris_quick_mode_bdap_prefix},
380
381 {"beq",
382 BRANCH_QUICK_OPCODE+CC_EQ*0x1000,
383 0x0f00+(0xF-CC_EQ)*0x1000, "o", 1, SIZE_NONE, 0,
384 cris_eight_bit_offset_branch_op},
385
386 /* This is deliberately put before "bext" to trump it, even though not
387 in alphabetical order, since we don't do excluding version checks
388 for v0..v10. */
389 {"bwf",
390 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
391 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
392 cris_ver_v10,
393 cris_eight_bit_offset_branch_op},
394
395 {"bext",
396 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
397 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
398 cris_ver_v0_3,
399 cris_eight_bit_offset_branch_op},
400
401 {"bge",
402 BRANCH_QUICK_OPCODE+CC_GE*0x1000,
403 0x0f00+(0xF-CC_GE)*0x1000, "o", 1, SIZE_NONE, 0,
404 cris_eight_bit_offset_branch_op},
405
406 {"bgt",
407 BRANCH_QUICK_OPCODE+CC_GT*0x1000,
408 0x0f00+(0xF-CC_GT)*0x1000, "o", 1, SIZE_NONE, 0,
409 cris_eight_bit_offset_branch_op},
410
411 {"bhi",
412 BRANCH_QUICK_OPCODE+CC_HI*0x1000,
413 0x0f00+(0xF-CC_HI)*0x1000, "o", 1, SIZE_NONE, 0,
414 cris_eight_bit_offset_branch_op},
415
416 {"bhs",
417 BRANCH_QUICK_OPCODE+CC_HS*0x1000,
418 0x0f00+(0xF-CC_HS)*0x1000, "o", 1, SIZE_NONE, 0,
419 cris_eight_bit_offset_branch_op},
420
421 {"biap", BIAP_OPCODE, BIAP_Z_BITS, "pm r,R", 0, SIZE_NONE,
422 cris_ver_v0_10,
423 cris_biap_prefix},
424
425 {"ble",
426 BRANCH_QUICK_OPCODE+CC_LE*0x1000,
427 0x0f00+(0xF-CC_LE)*0x1000, "o", 1, SIZE_NONE, 0,
428 cris_eight_bit_offset_branch_op},
429
430 {"blo",
431 BRANCH_QUICK_OPCODE+CC_LO*0x1000,
432 0x0f00+(0xF-CC_LO)*0x1000, "o", 1, SIZE_NONE, 0,
433 cris_eight_bit_offset_branch_op},
434
435 {"bls",
436 BRANCH_QUICK_OPCODE+CC_LS*0x1000,
437 0x0f00+(0xF-CC_LS)*0x1000, "o", 1, SIZE_NONE, 0,
438 cris_eight_bit_offset_branch_op},
439
440 {"blt",
441 BRANCH_QUICK_OPCODE+CC_LT*0x1000,
442 0x0f00+(0xF-CC_LT)*0x1000, "o", 1, SIZE_NONE, 0,
443 cris_eight_bit_offset_branch_op},
444
445 {"bmi",
446 BRANCH_QUICK_OPCODE+CC_MI*0x1000,
447 0x0f00+(0xF-CC_MI)*0x1000, "o", 1, SIZE_NONE, 0,
448 cris_eight_bit_offset_branch_op},
449
450 {"bmod", 0x0ab0, 0x0140, "s,R", 0, SIZE_FIX_32,
451 cris_ver_sim_v0_10,
452 cris_not_implemented_op},
453
454 {"bmod", 0x0ab0, 0x0140, "S,D", 0, SIZE_NONE,
455 cris_ver_sim_v0_10,
456 cris_not_implemented_op},
457
458 {"bmod", 0x0ab0, 0x0540, "S,R,r", 0, SIZE_NONE,
459 cris_ver_sim_v0_10,
460 cris_not_implemented_op},
461
462 {"bne",
463 BRANCH_QUICK_OPCODE+CC_NE*0x1000,
464 0x0f00+(0xF-CC_NE)*0x1000, "o", 1, SIZE_NONE, 0,
465 cris_eight_bit_offset_branch_op},
466
467 {"bound", 0x05c0, 0x0A00, "m r,R", 0, SIZE_NONE, 0,
468 cris_two_operand_bound_op},
469 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
470 {"bound", 0x09c0, 0x0200, "m s,R", 0, SIZE_FIELD,
471 cris_ver_v0_10,
472 cris_two_operand_bound_op},
473 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
474 {"bound", 0x0dcf, 0x0200, "m Y,R", 0, SIZE_FIELD, 0,
475 cris_two_operand_bound_op},
476 {"bound", 0x09c0, 0x0200, "m S,D", 0, SIZE_NONE,
477 cris_ver_v0_10,
478 cris_two_operand_bound_op},
479 {"bound", 0x09c0, 0x0600, "m S,R,r", 0, SIZE_NONE,
480 cris_ver_v0_10,
481 cris_three_operand_bound_op},
482
483 {"bpl",
484 BRANCH_QUICK_OPCODE+CC_PL*0x1000,
485 0x0f00+(0xF-CC_PL)*0x1000, "o", 1, SIZE_NONE, 0,
486 cris_eight_bit_offset_branch_op},
487
488 {"break", 0xe930, 0x16c0, "C", 0, SIZE_NONE,
489 cris_ver_v3p,
490 cris_break_op},
491
492 {"bsb",
493 BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
494 0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE,
495 cris_ver_v32p,
496 cris_eight_bit_offset_branch_op},
497
498 {"bsr", 0xBEBF, 0x4140, "n", 0, SIZE_FIX_32,
499 cris_ver_v32p,
500 cris_none_reg_mode_jump_op},
501
502 {"bsrc", 0xBEFF, 0x4100, "n", 0, SIZE_FIX_32,
503 cris_ver_v32p,
504 cris_none_reg_mode_jump_op},
505
506 {"bstore", 0x0af0, 0x0100, "s,R", 0, SIZE_FIX_32,
507 cris_ver_warning,
508 cris_not_implemented_op},
509
510 {"bstore", 0x0af0, 0x0100, "S,D", 0, SIZE_NONE,
511 cris_ver_warning,
512 cris_not_implemented_op},
513
514 {"bstore", 0x0af0, 0x0500, "S,R,r", 0, SIZE_NONE,
515 cris_ver_warning,
516 cris_not_implemented_op},
517
518 {"btst", 0x04F0, 0x0B00, "r,R", 0, SIZE_NONE, 0,
519 cris_btst_nop_op},
520 {"btstq", 0x0380, 0x0C60, "c,R", 0, SIZE_NONE, 0,
521 cris_btst_nop_op},
522
523 {"bvc",
524 BRANCH_QUICK_OPCODE+CC_VC*0x1000,
525 0x0f00+(0xF-CC_VC)*0x1000, "o", 1, SIZE_NONE, 0,
526 cris_eight_bit_offset_branch_op},
527
528 {"bvs",
529 BRANCH_QUICK_OPCODE+CC_VS*0x1000,
530 0x0f00+(0xF-CC_VS)*0x1000, "o", 1, SIZE_NONE, 0,
531 cris_eight_bit_offset_branch_op},
532
533 {"clear", 0x0670, 0x3980, "M r", 0, SIZE_NONE, 0,
534 cris_reg_mode_clear_op},
535
536 {"clear", 0x0A70, 0x3180, "M y", 0, SIZE_NONE, 0,
537 cris_none_reg_mode_clear_test_op},
538
539 {"clear", 0x0A70, 0x3180, "M S", 0, SIZE_NONE,
540 cris_ver_v0_10,
541 cris_none_reg_mode_clear_test_op},
542
543 {"clearf", 0x05F0, 0x0A00, "f", 0, SIZE_NONE, 0,
544 cris_clearf_di_op},
545
546 {"cmp", 0x06C0, 0x0900, "m r,R", 0, SIZE_NONE, 0,
547 cris_reg_mode_add_sub_cmp_and_or_move_op},
548
549 {"cmp", 0x0Ac0, 0x0100, "m s,R", 0, SIZE_FIELD, 0,
550 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
551
552 {"cmp", 0x0Ac0, 0x0100, "m S,D", 0, SIZE_NONE,
553 cris_ver_v0_10,
554 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
555
556 {"cmpq", 0x02C0, 0x0D00, "i,R", 0, SIZE_NONE, 0,
557 cris_quick_mode_and_cmp_move_or_op},
558
559 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
560 {"cmps", 0x08e0, 0x0300, "z s,R", 0, SIZE_FIELD, 0,
561 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
562
563 {"cmps", 0x08e0, 0x0300, "z S,D", 0, SIZE_NONE,
564 cris_ver_v0_10,
565 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
566
567 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
568 {"cmpu", 0x08c0, 0x0320, "z s,R" , 0, SIZE_FIELD, 0,
569 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
570
571 {"cmpu", 0x08c0, 0x0320, "z S,D", 0, SIZE_NONE,
572 cris_ver_v0_10,
573 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
574
575 {"di", 0x25F0, 0xDA0F, "", 0, SIZE_NONE, 0,
576 cris_clearf_di_op},
577
578 {"dip", DIP_OPCODE, DIP_Z_BITS, "ps", 0, SIZE_FIX_32,
579 cris_ver_v0_10,
580 cris_dip_prefix},
581
582 {"div", 0x0980, 0x0640, "m R,r", 0, SIZE_FIELD, 0,
583 cris_not_implemented_op},
584
585 {"dstep", 0x06f0, 0x0900, "r,R", 0, SIZE_NONE, 0,
586 cris_dstep_logshift_mstep_neg_not_op},
587
588 {"ei", 0x25B0, 0xDA4F, "", 0, SIZE_NONE, 0,
589 cris_ax_ei_setf_op},
590
591 {"fidxd", 0x0ab0, 0xf540, "[r]", 0, SIZE_NONE,
592 cris_ver_v32p,
593 cris_not_implemented_op},
594
595 {"fidxi", 0x0d30, 0xF2C0, "[r]", 0, SIZE_NONE,
596 cris_ver_v32p,
597 cris_not_implemented_op},
598
599 {"ftagd", 0x1AB0, 0xE540, "[r]", 0, SIZE_NONE,
600 cris_ver_v32p,
601 cris_not_implemented_op},
602
603 {"ftagi", 0x1D30, 0xE2C0, "[r]", 0, SIZE_NONE,
604 cris_ver_v32p,
605 cris_not_implemented_op},
606
607 {"halt", 0xF930, 0x06CF, "", 0, SIZE_NONE,
608 cris_ver_v32p,
609 cris_not_implemented_op},
610
611 {"jas", 0x09B0, 0x0640, "r,P", 0, SIZE_NONE,
612 cris_ver_v32p,
613 cris_reg_mode_jump_op},
614
615 {"jas", 0x0DBF, 0x0240, "N,P", 0, SIZE_FIX_32,
616 cris_ver_v32p,
617 cris_reg_mode_jump_op},
618
619 {"jasc", 0x0B30, 0x04C0, "r,P", 0, SIZE_NONE,
620 cris_ver_v32p,
621 cris_reg_mode_jump_op},
622
623 {"jasc", 0x0F3F, 0x00C0, "N,P", 0, SIZE_FIX_32,
624 cris_ver_v32p,
625 cris_reg_mode_jump_op},
626
627 {"jbrc", 0x69b0, 0x9640, "r", 0, SIZE_NONE,
628 cris_ver_v8_10,
629 cris_reg_mode_jump_op},
630
631 {"jbrc", 0x6930, 0x92c0, "s", 0, SIZE_FIX_32,
632 cris_ver_v8_10,
633 cris_none_reg_mode_jump_op},
634
635 {"jbrc", 0x6930, 0x92c0, "S", 0, SIZE_NONE,
636 cris_ver_v8_10,
637 cris_none_reg_mode_jump_op},
638
639 {"jir", 0xA9b0, 0x5640, "r", 0, SIZE_NONE,
640 cris_ver_v8_10,
641 cris_reg_mode_jump_op},
642
643 {"jir", 0xA930, 0x52c0, "s", 0, SIZE_FIX_32,
644 cris_ver_v8_10,
645 cris_none_reg_mode_jump_op},
646
647 {"jir", 0xA930, 0x52c0, "S", 0, SIZE_NONE,
648 cris_ver_v8_10,
649 cris_none_reg_mode_jump_op},
650
651 {"jirc", 0x29b0, 0xd640, "r", 0, SIZE_NONE,
652 cris_ver_v8_10,
653 cris_reg_mode_jump_op},
654
655 {"jirc", 0x2930, 0xd2c0, "s", 0, SIZE_FIX_32,
656 cris_ver_v8_10,
657 cris_none_reg_mode_jump_op},
658
659 {"jirc", 0x2930, 0xd2c0, "S", 0, SIZE_NONE,
660 cris_ver_v8_10,
661 cris_none_reg_mode_jump_op},
662
663 {"jsr", 0xB9b0, 0x4640, "r", 0, SIZE_NONE, 0,
664 cris_reg_mode_jump_op},
665
666 {"jsr", 0xB930, 0x42c0, "s", 0, SIZE_FIX_32,
667 cris_ver_v0_10,
668 cris_none_reg_mode_jump_op},
669
670 {"jsr", 0xBDBF, 0x4240, "N", 0, SIZE_FIX_32,
671 cris_ver_v32p,
672 cris_none_reg_mode_jump_op},
673
674 {"jsr", 0xB930, 0x42c0, "S", 0, SIZE_NONE,
675 cris_ver_v0_10,
676 cris_none_reg_mode_jump_op},
677
678 {"jsrc", 0x39b0, 0xc640, "r", 0, SIZE_NONE,
679 cris_ver_v8_10,
680 cris_reg_mode_jump_op},
681
682 {"jsrc", 0x3930, 0xc2c0, "s", 0, SIZE_FIX_32,
683 cris_ver_v8_10,
684 cris_none_reg_mode_jump_op},
685
686 {"jsrc", 0x3930, 0xc2c0, "S", 0, SIZE_NONE,
687 cris_ver_v8_10,
688 cris_none_reg_mode_jump_op},
689
690 {"jsrc", 0xBB30, 0x44C0, "r", 0, SIZE_NONE,
691 cris_ver_v32p,
692 cris_reg_mode_jump_op},
693
694 {"jsrc", 0xBF3F, 0x40C0, "N", 0, SIZE_FIX_32,
695 cris_ver_v32p,
696 cris_reg_mode_jump_op},
697
698 {"jump", 0x09b0, 0xF640, "r", 0, SIZE_NONE, 0,
699 cris_reg_mode_jump_op},
700
701 {"jump",
702 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "s", 0, SIZE_FIX_32,
703 cris_ver_v0_10,
704 cris_none_reg_mode_jump_op},
705
706 {"jump",
707 JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "S", 0, SIZE_NONE,
708 cris_ver_v0_10,
709 cris_none_reg_mode_jump_op},
710
711 {"jump", 0x09F0, 0x060F, "P", 0, SIZE_NONE,
712 cris_ver_v32p,
713 cris_none_reg_mode_jump_op},
714
715 {"jump",
716 JUMP_PC_INCR_OPCODE_V32,
717 (0xffff & ~JUMP_PC_INCR_OPCODE_V32), "N", 0, SIZE_FIX_32,
718 cris_ver_v32p,
719 cris_none_reg_mode_jump_op},
720
721 {"jmpu", 0x8930, 0x72c0, "s", 0, SIZE_FIX_32,
722 cris_ver_v10,
723 cris_none_reg_mode_jump_op},
724
725 {"jmpu", 0x8930, 0x72c0, "S", 0, SIZE_NONE,
726 cris_ver_v10,
727 cris_none_reg_mode_jump_op},
728
729 {"lapc", 0x0970, 0x0680, "U,R", 0, SIZE_NONE,
730 cris_ver_v32p,
731 cris_not_implemented_op},
732
733 {"lapc", 0x0D7F, 0x0280, "dn,R", 0, SIZE_FIX_32,
734 cris_ver_v32p,
735 cris_not_implemented_op},
736
737 {"lapcq", 0x0970, 0x0680, "u,R", 0, SIZE_NONE,
738 cris_ver_v32p,
739 cris_addi_op},
740
741 {"lsl", 0x04C0, 0x0B00, "m r,R", 0, SIZE_NONE, 0,
742 cris_dstep_logshift_mstep_neg_not_op},
743
744 {"lslq", 0x03c0, 0x0C20, "c,R", 0, SIZE_NONE, 0,
745 cris_dstep_logshift_mstep_neg_not_op},
746
747 {"lsr", 0x07C0, 0x0800, "m r,R", 0, SIZE_NONE, 0,
748 cris_dstep_logshift_mstep_neg_not_op},
749
750 {"lsrq", 0x03e0, 0x0C00, "c,R", 0, SIZE_NONE, 0,
751 cris_dstep_logshift_mstep_neg_not_op},
752
753 {"lz", 0x0730, 0x08C0, "r,R", 0, SIZE_NONE,
754 cris_ver_v3p,
755 cris_not_implemented_op},
756
757 {"mcp", 0x07f0, 0x0800, "P,r", 0, SIZE_NONE,
758 cris_ver_v32p,
759 cris_not_implemented_op},
760
761 {"move", 0x0640, 0x0980, "m r,R", 0, SIZE_NONE, 0,
762 cris_reg_mode_add_sub_cmp_and_or_move_op},
763
764 {"move", 0x0A40, 0x0180, "m s,R", 0, SIZE_FIELD, 0,
765 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
766
767 {"move", 0x0A40, 0x0180, "m S,D", 0, SIZE_NONE,
768 cris_ver_v0_10,
769 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
770
771 {"move", 0x0630, 0x09c0, "r,P", 0, SIZE_NONE, 0,
772 cris_move_to_preg_op},
773
774 {"move", 0x0670, 0x0980, "P,r", 0, SIZE_NONE, 0,
775 cris_reg_mode_move_from_preg_op},
776
777 {"move", 0x0BC0, 0x0000, "m R,y", 0, SIZE_FIELD, 0,
778 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
779
780 {"move", 0x0BC0, 0x0000, "m D,S", 0, SIZE_NONE,
781 cris_ver_v0_10,
782 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
783
784 {"move",
785 MOVE_M_TO_PREG_OPCODE, MOVE_M_TO_PREG_ZBITS,
786 "s,P", 0, SIZE_SPEC_REG, 0,
787 cris_move_to_preg_op},
788
789 {"move", 0x0A30, 0x01c0, "S,P", 0, SIZE_NONE,
790 cris_ver_v0_10,
791 cris_move_to_preg_op},
792
793 {"move", 0x0A70, 0x0180, "P,y", 0, SIZE_SPEC_REG, 0,
794 cris_none_reg_mode_move_from_preg_op},
795
796 {"move", 0x0A70, 0x0180, "P,S", 0, SIZE_NONE,
797 cris_ver_v0_10,
798 cris_none_reg_mode_move_from_preg_op},
799
800 {"move", 0x0B70, 0x0480, "r,T", 0, SIZE_NONE,
801 cris_ver_v32p,
802 cris_not_implemented_op},
803
804 {"move", 0x0F70, 0x0080, "T,r", 0, SIZE_NONE,
805 cris_ver_v32p,
806 cris_not_implemented_op},
807
808 {"movem", 0x0BF0, 0x0000, "R,y", 0, SIZE_FIX_32, 0,
809 cris_move_reg_to_mem_movem_op},
810
811 {"movem", 0x0BF0, 0x0000, "D,S", 0, SIZE_NONE,
812 cris_ver_v0_10,
813 cris_move_reg_to_mem_movem_op},
814
815 {"movem", 0x0BB0, 0x0040, "s,R", 0, SIZE_FIX_32, 0,
816 cris_move_mem_to_reg_movem_op},
817
818 {"movem", 0x0BB0, 0x0040, "S,D", 0, SIZE_NONE,
819 cris_ver_v0_10,
820 cris_move_mem_to_reg_movem_op},
821
822 {"moveq", 0x0240, 0x0D80, "i,R", 0, SIZE_NONE, 0,
823 cris_quick_mode_and_cmp_move_or_op},
824
825 {"movs", 0x0460, 0x0B80, "z r,R", 0, SIZE_NONE, 0,
826 cris_reg_mode_add_sub_cmp_and_or_move_op},
827
828 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
829 {"movs", 0x0860, 0x0380, "z s,R", 0, SIZE_FIELD, 0,
830 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
831
832 {"movs", 0x0860, 0x0380, "z S,D", 0, SIZE_NONE,
833 cris_ver_v0_10,
834 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
835
836 {"movu", 0x0440, 0x0Ba0, "z r,R", 0, SIZE_NONE, 0,
837 cris_reg_mode_add_sub_cmp_and_or_move_op},
838
839 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
840 {"movu", 0x0840, 0x03a0, "z s,R", 0, SIZE_FIELD, 0,
841 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
842
843 {"movu", 0x0840, 0x03a0, "z S,D", 0, SIZE_NONE,
844 cris_ver_v0_10,
845 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
846
847 {"mstep", 0x07f0, 0x0800, "r,R", 0, SIZE_NONE,
848 cris_ver_v0_10,
849 cris_dstep_logshift_mstep_neg_not_op},
850
851 {"muls", 0x0d00, 0x02c0, "m r,R", 0, SIZE_NONE,
852 cris_ver_v10p,
853 cris_muls_op},
854
855 {"mulu", 0x0900, 0x06c0, "m r,R", 0, SIZE_NONE,
856 cris_ver_v10p,
857 cris_mulu_op},
858
859 {"neg", 0x0580, 0x0A40, "m r,R", 0, SIZE_NONE, 0,
860 cris_dstep_logshift_mstep_neg_not_op},
861
862 {"nop", NOP_OPCODE, NOP_Z_BITS, "", 0, SIZE_NONE,
863 cris_ver_v0_10,
864 cris_btst_nop_op},
865
866 {"nop", NOP_OPCODE_V32, NOP_Z_BITS_V32, "", 0, SIZE_NONE,
867 cris_ver_v32p,
868 cris_btst_nop_op},
869
870 {"not", 0x8770, 0x7880, "r", 0, SIZE_NONE, 0,
871 cris_dstep_logshift_mstep_neg_not_op},
872
873 {"or", 0x0740, 0x0880, "m r,R", 0, SIZE_NONE, 0,
874 cris_reg_mode_add_sub_cmp_and_or_move_op},
875
876 {"or", 0x0B40, 0x0080, "m s,R", 0, SIZE_FIELD, 0,
877 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
878
879 {"or", 0x0B40, 0x0080, "m S,D", 0, SIZE_NONE,
880 cris_ver_v0_10,
881 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
882
883 {"or", 0x0B40, 0x0480, "m S,R,r", 0, SIZE_NONE,
884 cris_ver_v0_10,
885 cris_three_operand_add_sub_cmp_and_or_op},
886
887 {"orq", 0x0340, 0x0C80, "i,R", 0, SIZE_NONE, 0,
888 cris_quick_mode_and_cmp_move_or_op},
889
890 {"pop", 0x0E6E, 0x0191, "!R", 0, SIZE_NONE,
891 cris_ver_v0_10,
892 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
893
894 {"pop", 0x0e3e, 0x01c1, "!P", 0, SIZE_NONE,
895 cris_ver_v0_10,
896 cris_none_reg_mode_move_from_preg_op},
897
898 {"push", 0x0FEE, 0x0011, "BR", 0, SIZE_NONE,
899 cris_ver_v0_10,
900 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
901
902 {"push", 0x0E7E, 0x0181, "BP", 0, SIZE_NONE,
903 cris_ver_v0_10,
904 cris_move_to_preg_op},
905
906 {"rbf", 0x3b30, 0xc0c0, "y", 0, SIZE_NONE,
907 cris_ver_v10,
908 cris_not_implemented_op},
909
910 {"rbf", 0x3b30, 0xc0c0, "S", 0, SIZE_NONE,
911 cris_ver_v10,
912 cris_not_implemented_op},
913
914 {"rfe", 0x2930, 0xD6CF, "", 0, SIZE_NONE,
915 cris_ver_v32p,
916 cris_not_implemented_op},
917
918 {"rfg", 0x4930, 0xB6CF, "", 0, SIZE_NONE,
919 cris_ver_v32p,
920 cris_not_implemented_op},
921
922 {"rfn", 0x5930, 0xA6CF, "", 0, SIZE_NONE,
923 cris_ver_v32p,
924 cris_not_implemented_op},
925
926 {"ret", 0xB67F, 0x4980, "", 1, SIZE_NONE,
927 cris_ver_v0_10,
928 cris_reg_mode_move_from_preg_op},
929
930 {"ret", 0xB9F0, 0x460F, "", 1, SIZE_NONE,
931 cris_ver_v32p,
932 cris_reg_mode_move_from_preg_op},
933
934 {"retb", 0xe67f, 0x1980, "", 1, SIZE_NONE,
935 cris_ver_v0_10,
936 cris_reg_mode_move_from_preg_op},
937
938 {"rete", 0xA9F0, 0x560F, "", 1, SIZE_NONE,
939 cris_ver_v32p,
940 cris_reg_mode_move_from_preg_op},
941
942 {"reti", 0xA67F, 0x5980, "", 1, SIZE_NONE,
943 cris_ver_v0_10,
944 cris_reg_mode_move_from_preg_op},
945
946 {"retn", 0xC9F0, 0x360F, "", 1, SIZE_NONE,
947 cris_ver_v32p,
948 cris_reg_mode_move_from_preg_op},
949
950 {"sbfs", 0x3b70, 0xc080, "y", 0, SIZE_NONE,
951 cris_ver_v10,
952 cris_not_implemented_op},
953
954 {"sbfs", 0x3b70, 0xc080, "S", 0, SIZE_NONE,
955 cris_ver_v10,
956 cris_not_implemented_op},
957
958 {"sa",
959 0x0530+CC_A*0x1000,
960 0x0AC0+(0xf-CC_A)*0x1000, "r", 0, SIZE_NONE, 0,
961 cris_scc_op},
962
963 {"ssb",
964 0x0530+CC_EXT*0x1000,
965 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
966 cris_ver_v32p,
967 cris_scc_op},
968
969 {"scc",
970 0x0530+CC_CC*0x1000,
971 0x0AC0+(0xf-CC_CC)*0x1000, "r", 0, SIZE_NONE, 0,
972 cris_scc_op},
973
974 {"scs",
975 0x0530+CC_CS*0x1000,
976 0x0AC0+(0xf-CC_CS)*0x1000, "r", 0, SIZE_NONE, 0,
977 cris_scc_op},
978
979 {"seq",
980 0x0530+CC_EQ*0x1000,
981 0x0AC0+(0xf-CC_EQ)*0x1000, "r", 0, SIZE_NONE, 0,
982 cris_scc_op},
983
984 {"setf", 0x05b0, 0x0A40, "f", 0, SIZE_NONE, 0,
985 cris_ax_ei_setf_op},
986
987 {"sfe", 0x3930, 0xC6CF, "", 0, SIZE_NONE,
988 cris_ver_v32p,
989 cris_not_implemented_op},
990
991 /* Need to have "swf" in front of "sext" so it is the one displayed in
992 disassembly. */
993 {"swf",
994 0x0530+CC_EXT*0x1000,
995 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
996 cris_ver_v10,
997 cris_scc_op},
998
999 {"sext",
1000 0x0530+CC_EXT*0x1000,
1001 0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE,
1002 cris_ver_v0_3,
1003 cris_scc_op},
1004
1005 {"sge",
1006 0x0530+CC_GE*0x1000,
1007 0x0AC0+(0xf-CC_GE)*0x1000, "r", 0, SIZE_NONE, 0,
1008 cris_scc_op},
1009
1010 {"sgt",
1011 0x0530+CC_GT*0x1000,
1012 0x0AC0+(0xf-CC_GT)*0x1000, "r", 0, SIZE_NONE, 0,
1013 cris_scc_op},
1014
1015 {"shi",
1016 0x0530+CC_HI*0x1000,
1017 0x0AC0+(0xf-CC_HI)*0x1000, "r", 0, SIZE_NONE, 0,
1018 cris_scc_op},
1019
1020 {"shs",
1021 0x0530+CC_HS*0x1000,
1022 0x0AC0+(0xf-CC_HS)*0x1000, "r", 0, SIZE_NONE, 0,
1023 cris_scc_op},
1024
1025 {"sle",
1026 0x0530+CC_LE*0x1000,
1027 0x0AC0+(0xf-CC_LE)*0x1000, "r", 0, SIZE_NONE, 0,
1028 cris_scc_op},
1029
1030 {"slo",
1031 0x0530+CC_LO*0x1000,
1032 0x0AC0+(0xf-CC_LO)*0x1000, "r", 0, SIZE_NONE, 0,
1033 cris_scc_op},
1034
1035 {"sls",
1036 0x0530+CC_LS*0x1000,
1037 0x0AC0+(0xf-CC_LS)*0x1000, "r", 0, SIZE_NONE, 0,
1038 cris_scc_op},
1039
1040 {"slt",
1041 0x0530+CC_LT*0x1000,
1042 0x0AC0+(0xf-CC_LT)*0x1000, "r", 0, SIZE_NONE, 0,
1043 cris_scc_op},
1044
1045 {"smi",
1046 0x0530+CC_MI*0x1000,
1047 0x0AC0+(0xf-CC_MI)*0x1000, "r", 0, SIZE_NONE, 0,
1048 cris_scc_op},
1049
1050 {"sne",
1051 0x0530+CC_NE*0x1000,
1052 0x0AC0+(0xf-CC_NE)*0x1000, "r", 0, SIZE_NONE, 0,
1053 cris_scc_op},
1054
1055 {"spl",
1056 0x0530+CC_PL*0x1000,
1057 0x0AC0+(0xf-CC_PL)*0x1000, "r", 0, SIZE_NONE, 0,
1058 cris_scc_op},
1059
1060 {"sub", 0x0680, 0x0940, "m r,R", 0, SIZE_NONE, 0,
1061 cris_reg_mode_add_sub_cmp_and_or_move_op},
1062
1063 {"sub", 0x0a80, 0x0140, "m s,R", 0, SIZE_FIELD, 0,
1064 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1065
1066 {"sub", 0x0a80, 0x0140, "m S,D", 0, SIZE_NONE,
1067 cris_ver_v0_10,
1068 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1069
1070 {"sub", 0x0a80, 0x0540, "m S,R,r", 0, SIZE_NONE,
1071 cris_ver_v0_10,
1072 cris_three_operand_add_sub_cmp_and_or_op},
1073
1074 {"subq", 0x0280, 0x0d40, "I,R", 0, SIZE_NONE, 0,
1075 cris_quick_mode_add_sub_op},
1076
1077 {"subs", 0x04a0, 0x0b40, "z r,R", 0, SIZE_NONE, 0,
1078 cris_reg_mode_add_sub_cmp_and_or_move_op},
1079
1080 /* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
1081 {"subs", 0x08a0, 0x0340, "z s,R", 0, SIZE_FIELD, 0,
1082 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1083
1084 {"subs", 0x08a0, 0x0340, "z S,D", 0, SIZE_NONE,
1085 cris_ver_v0_10,
1086 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1087
1088 {"subs", 0x08a0, 0x0740, "z S,R,r", 0, SIZE_NONE,
1089 cris_ver_v0_10,
1090 cris_three_operand_add_sub_cmp_and_or_op},
1091
1092 {"subu", 0x0480, 0x0b60, "z r,R", 0, SIZE_NONE, 0,
1093 cris_reg_mode_add_sub_cmp_and_or_move_op},
1094
1095 /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
1096 {"subu", 0x0880, 0x0360, "z s,R", 0, SIZE_FIELD, 0,
1097 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1098
1099 {"subu", 0x0880, 0x0360, "z S,D", 0, SIZE_NONE,
1100 cris_ver_v0_10,
1101 cris_none_reg_mode_add_sub_cmp_and_or_move_op},
1102
1103 {"subu", 0x0880, 0x0760, "z S,R,r", 0, SIZE_NONE,
1104 cris_ver_v0_10,
1105 cris_three_operand_add_sub_cmp_and_or_op},
1106
1107 {"svc",
1108 0x0530+CC_VC*0x1000,
1109 0x0AC0+(0xf-CC_VC)*0x1000, "r", 0, SIZE_NONE, 0,
1110 cris_scc_op},
1111
1112 {"svs",
1113 0x0530+CC_VS*0x1000,
1114 0x0AC0+(0xf-CC_VS)*0x1000, "r", 0, SIZE_NONE, 0,
1115 cris_scc_op},
1116
1117 /* The insn "swapn" is the same as "not" and will be disassembled as
1118 such, but the swap* family of mnmonics are generally v8-and-higher
1119 only, so count it in. */
1120 {"swapn", 0x8770, 0x7880, "r", 0, SIZE_NONE,
1121 cris_ver_v8p,
1122 cris_not_implemented_op},
1123
1124 {"swapw", 0x4770, 0xb880, "r", 0, SIZE_NONE,
1125 cris_ver_v8p,
1126 cris_not_implemented_op},
1127
1128 {"swapnw", 0xc770, 0x3880, "r", 0, SIZE_NONE,
1129 cris_ver_v8p,
1130 cris_not_implemented_op},
1131
1132 {"swapb", 0x2770, 0xd880, "r", 0, SIZE_NONE,
1133 cris_ver_v8p,
1134 cris_not_implemented_op},
1135
1136 {"swapnb", 0xA770, 0x5880, "r", 0, SIZE_NONE,
1137 cris_ver_v8p,
1138 cris_not_implemented_op},
1139
1140 {"swapwb", 0x6770, 0x9880, "r", 0, SIZE_NONE,
1141 cris_ver_v8p,
1142 cris_not_implemented_op},
1143
1144 {"swapnwb", 0xE770, 0x1880, "r", 0, SIZE_NONE,
1145 cris_ver_v8p,
1146 cris_not_implemented_op},
1147
1148 {"swapr", 0x1770, 0xe880, "r", 0, SIZE_NONE,
1149 cris_ver_v8p,
1150 cris_not_implemented_op},
1151
1152 {"swapnr", 0x9770, 0x6880, "r", 0, SIZE_NONE,
1153 cris_ver_v8p,
1154 cris_not_implemented_op},
1155
1156 {"swapwr", 0x5770, 0xa880, "r", 0, SIZE_NONE,
1157 cris_ver_v8p,
1158 cris_not_implemented_op},
1159
1160 {"swapnwr", 0xd770, 0x2880, "r", 0, SIZE_NONE,
1161 cris_ver_v8p,
1162 cris_not_implemented_op},
1163
1164 {"swapbr", 0x3770, 0xc880, "r", 0, SIZE_NONE,
1165 cris_ver_v8p,
1166 cris_not_implemented_op},
1167
1168 {"swapnbr", 0xb770, 0x4880, "r", 0, SIZE_NONE,
1169 cris_ver_v8p,
1170 cris_not_implemented_op},
1171
1172 {"swapwbr", 0x7770, 0x8880, "r", 0, SIZE_NONE,
1173 cris_ver_v8p,
1174 cris_not_implemented_op},
1175
1176 {"swapnwbr", 0xf770, 0x0880, "r", 0, SIZE_NONE,
1177 cris_ver_v8p,
1178 cris_not_implemented_op},
1179
1180 {"test", 0x0640, 0x0980, "m D", 0, SIZE_NONE,
1181 cris_ver_v0_10,
1182 cris_reg_mode_test_op},
1183
1184 {"test", 0x0b80, 0xf040, "m y", 0, SIZE_FIELD, 0,
1185 cris_none_reg_mode_clear_test_op},
1186
1187 {"test", 0x0b80, 0xf040, "m S", 0, SIZE_NONE,
1188 cris_ver_v0_10,
1189 cris_none_reg_mode_clear_test_op},
1190
1191 {"xor", 0x07B0, 0x0840, "r,R", 0, SIZE_NONE, 0,
1192 cris_xor_op},
1193
1194 {NULL, 0, 0, NULL, 0, 0, 0, cris_not_implemented_op}
1195 };
1196
1197 /* Condition-names, indexed by the CC_* numbers as found in cris.h. */
1198 const char * const
1199 cris_cc_strings[] =
1200 {
1201 "hs",
1202 "lo",
1203 "ne",
1204 "eq",
1205 "vc",
1206 "vs",
1207 "pl",
1208 "mi",
1209 "ls",
1210 "hi",
1211 "ge",
1212 "lt",
1213 "gt",
1214 "le",
1215 "a",
1216 /* This is a placeholder. In v0, this would be "ext". In v32, this
1217 is "sb". See cris_conds15. */
1218 "wf"
1219 };
1220
1221 /* Different names and semantics for condition 1111 (0xf). */
1222 const struct cris_cond15 cris_cond15s[] =
1223 {
1224 /* FIXME: In what version did condition "ext" disappear? */
1225 {"ext", cris_ver_v0_3},
1226 {"wf", cris_ver_v10},
1227 {"sb", cris_ver_v32p},
1228 {NULL, 0}
1229 };
1230
1231
1232 /*
1233 * Local variables:
1234 * eval: (c-set-style "gnu")
1235 * indent-tabs-mode: t
1236 * End:
1237 */
1238
1239
1240 /* No instruction will be disassembled longer than this. In theory, and
1241 in silicon, address prefixes can be cascaded. In practice, cascading
1242 is not used by GCC, and not supported by the assembler. */
1243 #ifndef MAX_BYTES_PER_CRIS_INSN
1244 #define MAX_BYTES_PER_CRIS_INSN 8
1245 #endif
1246
1247 /* Whether or not to decode prefixes, folding it into the following
1248 instruction. FIXME: Make this optional later. */
1249 #ifndef PARSE_PREFIX
1250 #define PARSE_PREFIX 1
1251 #endif
1252
1253 /* Sometimes we prefix all registers with this character. */
1254 #define REGISTER_PREFIX_CHAR '$'
1255
1256 /* Whether or not to trace the following sequence:
1257 sub* X,r%d
1258 bound* Y,r%d
1259 adds.w [pc+r%d.w],pc
1260
1261 This is the assembly form of a switch-statement in C.
1262 The "sub is optional. If there is none, then X will be zero.
1263 X is the value of the first case,
1264 Y is the number of cases (including default).
1265
1266 This results in case offsets printed on the form:
1267 case N: -> case_address
1268 where N is an estimation on the corresponding 'case' operand in C,
1269 and case_address is where execution of that case continues after the
1270 sequence presented above.
1271
1272 The old style of output was to print the offsets as instructions,
1273 which made it hard to follow "case"-constructs in the disassembly,
1274 and caused a lot of annoying warnings about undefined instructions.
1275
1276 FIXME: Make this optional later. */
1277 #ifndef TRACE_CASE
1278 #define TRACE_CASE (disdata->trace_case)
1279 #endif
1280
1281 enum cris_disass_family
1282 { cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 };
1283
1284 /* Stored in the disasm_info->private_data member. */
1285 struct cris_disasm_data
1286 {
1287 /* Whether to print something less confusing if we find something
1288 matching a switch-construct. */
1289 bfd_boolean trace_case;
1290
1291 /* Whether this code is flagged as crisv32. FIXME: Should be an enum
1292 that includes "compatible". */
1293 enum cris_disass_family distype;
1294 };
1295
1296 /* Value of first element in switch. */
1297 static long case_offset = 0;
1298
1299 /* How many more case-offsets to print. */
1300 static long case_offset_counter = 0;
1301
1302 /* Number of case offsets. */
1303 static long no_of_case_offsets = 0;
1304
1305 /* Candidate for next case_offset. */
1306 static long last_immediate = 0;
1307
1308 static int cris_constraint
1309 (const char *, unsigned, unsigned, struct cris_disasm_data *);
1310
1311 /* Parse disassembler options and store state in info. FIXME: For the
1312 time being, we abuse static variables. */
1313
1314 static bfd_boolean
1315 cris_parse_disassembler_options (disassemble_info *info,
1316 enum cris_disass_family distype)
1317 {
1318 struct cris_disasm_data *disdata;
1319
1320 info->private_data = calloc (1, sizeof (struct cris_disasm_data));
1321 disdata = (struct cris_disasm_data *) info->private_data;
1322 if (disdata == NULL)
1323 return FALSE;
1324
1325 /* Default true. */
1326 disdata->trace_case
1327 = (info->disassembler_options == NULL
1328 || (strcmp (info->disassembler_options, "nocase") != 0));
1329
1330 disdata->distype = distype;
1331 return TRUE;
1332 }
1333
1334 static const struct cris_spec_reg *
1335 spec_reg_info (unsigned int sreg, enum cris_disass_family distype)
1336 {
1337 int i;
1338
1339 for (i = 0; cris_spec_regs[i].name != NULL; i++)
1340 {
1341 if (cris_spec_regs[i].number == sreg)
1342 {
1343 if (distype == cris_dis_v32)
1344 switch (cris_spec_regs[i].applicable_version)
1345 {
1346 case cris_ver_warning:
1347 case cris_ver_version_all:
1348 case cris_ver_v3p:
1349 case cris_ver_v8p:
1350 case cris_ver_v10p:
1351 case cris_ver_v32p:
1352 /* No ambiguous sizes or register names with CRISv32. */
1353 if (cris_spec_regs[i].warning == NULL)
1354 return &cris_spec_regs[i];
1355 default:
1356 ;
1357 }
1358 else if (cris_spec_regs[i].applicable_version != cris_ver_v32p)
1359 return &cris_spec_regs[i];
1360 }
1361 }
1362
1363 return NULL;
1364 }
1365
1366 /* Return the number of bits in the argument. */
1367
1368 static int
1369 number_of_bits (unsigned int val)
1370 {
1371 int bits;
1372
1373 for (bits = 0; val != 0; val &= val - 1)
1374 bits++;
1375
1376 return bits;
1377 }
1378
1379 /* Get an entry in the opcode-table. */
1380
1381 static const struct cris_opcode *
1382 get_opcode_entry (unsigned int insn,
1383 unsigned int prefix_insn,
1384 struct cris_disasm_data *disdata)
1385 {
1386 /* For non-prefixed insns, we keep a table of pointers, indexed by the
1387 insn code. Each entry is initialized when found to be NULL. */
1388 static const struct cris_opcode **opc_table = NULL;
1389
1390 const struct cris_opcode *max_matchedp = NULL;
1391 const struct cris_opcode **prefix_opc_table = NULL;
1392
1393 /* We hold a table for each prefix that need to be handled differently. */
1394 static const struct cris_opcode **dip_prefixes = NULL;
1395 static const struct cris_opcode **bdapq_m1_prefixes = NULL;
1396 static const struct cris_opcode **bdapq_m2_prefixes = NULL;
1397 static const struct cris_opcode **bdapq_m4_prefixes = NULL;
1398 static const struct cris_opcode **rest_prefixes = NULL;
1399
1400 /* Allocate and clear the opcode-table. */
1401 if (opc_table == NULL)
1402 {
1403 opc_table = qemu_malloc (65536 * sizeof (opc_table[0]));
1404
1405 memset (opc_table, 0, 65536 * sizeof (const struct cris_opcode *));
1406
1407 dip_prefixes
1408 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1409
1410 memset (dip_prefixes, 0, 65536 * sizeof (dip_prefixes[0]));
1411
1412 bdapq_m1_prefixes
1413 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1414
1415 memset (bdapq_m1_prefixes, 0, 65536 * sizeof (bdapq_m1_prefixes[0]));
1416
1417 bdapq_m2_prefixes
1418 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1419
1420 memset (bdapq_m2_prefixes, 0, 65536 * sizeof (bdapq_m2_prefixes[0]));
1421
1422 bdapq_m4_prefixes
1423 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1424
1425 memset (bdapq_m4_prefixes, 0, 65536 * sizeof (bdapq_m4_prefixes[0]));
1426
1427 rest_prefixes
1428 = qemu_malloc (65536 * sizeof (const struct cris_opcode **));
1429
1430 memset (rest_prefixes, 0, 65536 * sizeof (rest_prefixes[0]));
1431 }
1432
1433 /* Get the right table if this is a prefix.
1434 This code is connected to cris_constraints in that it knows what
1435 prefixes play a role in recognition of patterns; the necessary
1436 state is reflected by which table is used. If constraints
1437 involving match or non-match of prefix insns are changed, then this
1438 probably needs changing too. */
1439 if (prefix_insn != NO_CRIS_PREFIX)
1440 {
1441 const struct cris_opcode *popcodep
1442 = (opc_table[prefix_insn] != NULL
1443 ? opc_table[prefix_insn]
1444 : get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata));
1445
1446 if (popcodep == NULL)
1447 return NULL;
1448
1449 if (popcodep->match == BDAP_QUICK_OPCODE)
1450 {
1451 /* Since some offsets are recognized with "push" macros, we
1452 have to have different tables for them. */
1453 int offset = (prefix_insn & 255);
1454
1455 if (offset > 127)
1456 offset -= 256;
1457
1458 switch (offset)
1459 {
1460 case -4:
1461 prefix_opc_table = bdapq_m4_prefixes;
1462 break;
1463
1464 case -2:
1465 prefix_opc_table = bdapq_m2_prefixes;
1466 break;
1467
1468 case -1:
1469 prefix_opc_table = bdapq_m1_prefixes;
1470 break;
1471
1472 default:
1473 prefix_opc_table = rest_prefixes;
1474 break;
1475 }
1476 }
1477 else if (popcodep->match == DIP_OPCODE)
1478 /* We don't allow postincrement when the prefix is DIP, so use a
1479 different table for DIP. */
1480 prefix_opc_table = dip_prefixes;
1481 else
1482 prefix_opc_table = rest_prefixes;
1483 }
1484
1485 if (prefix_insn != NO_CRIS_PREFIX
1486 && prefix_opc_table[insn] != NULL)
1487 max_matchedp = prefix_opc_table[insn];
1488 else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL)
1489 max_matchedp = opc_table[insn];
1490 else
1491 {
1492 const struct cris_opcode *opcodep;
1493 int max_level_of_match = -1;
1494
1495 for (opcodep = cris_opcodes;
1496 opcodep->name != NULL;
1497 opcodep++)
1498 {
1499 int level_of_match;
1500
1501 if (disdata->distype == cris_dis_v32)
1502 {
1503 switch (opcodep->applicable_version)
1504 {
1505 case cris_ver_version_all:
1506 break;
1507
1508 case cris_ver_v0_3:
1509 case cris_ver_v0_10:
1510 case cris_ver_v3_10:
1511 case cris_ver_sim_v0_10:
1512 case cris_ver_v8_10:
1513 case cris_ver_v10:
1514 case cris_ver_warning:
1515 continue;
1516
1517 case cris_ver_v3p:
1518 case cris_ver_v8p:
1519 case cris_ver_v10p:
1520 case cris_ver_v32p:
1521 break;
1522
1523 case cris_ver_v8:
1524 abort ();
1525 default:
1526 abort ();
1527 }
1528 }
1529 else
1530 {
1531 switch (opcodep->applicable_version)
1532 {
1533 case cris_ver_version_all:
1534 case cris_ver_v0_3:
1535 case cris_ver_v3p:
1536 case cris_ver_v0_10:
1537 case cris_ver_v8p:
1538 case cris_ver_v8_10:
1539 case cris_ver_v10:
1540 case cris_ver_sim_v0_10:
1541 case cris_ver_v10p:
1542 case cris_ver_warning:
1543 break;
1544
1545 case cris_ver_v32p:
1546 continue;
1547
1548 case cris_ver_v8:
1549 abort ();
1550 default:
1551 abort ();
1552 }
1553 }
1554
1555 /* We give a double lead for bits matching the template in
1556 cris_opcodes. Not even, because then "move p8,r10" would
1557 be given 2 bits lead over "clear.d r10". When there's a
1558 tie, the first entry in the table wins. This is
1559 deliberate, to avoid a more complicated recognition
1560 formula. */
1561 if ((opcodep->match & insn) == opcodep->match
1562 && (opcodep->lose & insn) == 0
1563 && ((level_of_match
1564 = cris_constraint (opcodep->args,
1565 insn,
1566 prefix_insn,
1567 disdata))
1568 >= 0)
1569 && ((level_of_match
1570 += 2 * number_of_bits (opcodep->match
1571 | opcodep->lose))
1572 > max_level_of_match))
1573 {
1574 max_matchedp = opcodep;
1575 max_level_of_match = level_of_match;
1576
1577 /* If there was a full match, never mind looking
1578 further. */
1579 if (level_of_match >= 2 * 16)
1580 break;
1581 }
1582 }
1583 /* Fill in the new entry.
1584
1585 If there are changes to the opcode-table involving prefixes, and
1586 disassembly then does not work correctly, try removing the
1587 else-clause below that fills in the prefix-table. If that
1588 helps, you need to change the prefix_opc_table setting above, or
1589 something related. */
1590 if (prefix_insn == NO_CRIS_PREFIX)
1591 opc_table[insn] = max_matchedp;
1592 else
1593 prefix_opc_table[insn] = max_matchedp;
1594 }
1595
1596 return max_matchedp;
1597 }
1598
1599 /* Return -1 if the constraints of a bitwise-matched instruction say
1600 that there is no match. Otherwise return a nonnegative number
1601 indicating the confidence in the match (higher is better). */
1602
1603 static int
1604 cris_constraint (const char *cs,
1605 unsigned int insn,
1606 unsigned int prefix_insn,
1607 struct cris_disasm_data *disdata)
1608 {
1609 int retval = 0;
1610 int tmp;
1611 int prefix_ok = 0;
1612 const char *s;
1613
1614 for (s = cs; *s; s++)
1615 switch (*s)
1616 {
1617 case '!':
1618 /* Do not recognize "pop" if there's a prefix and then only for
1619 v0..v10. */
1620 if (prefix_insn != NO_CRIS_PREFIX
1621 || disdata->distype != cris_dis_v0_v10)
1622 return -1;
1623 break;
1624
1625 case 'U':
1626 /* Not recognized at disassembly. */
1627 return -1;
1628
1629 case 'M':
1630 /* Size modifier for "clear", i.e. special register 0, 4 or 8.
1631 Check that it is one of them. Only special register 12 could
1632 be mismatched, but checking for matches is more logical than
1633 checking for mismatches when there are only a few cases. */
1634 tmp = ((insn >> 12) & 0xf);
1635 if (tmp != 0 && tmp != 4 && tmp != 8)
1636 return -1;
1637 break;
1638
1639 case 'm':
1640 if ((insn & 0x30) == 0x30)
1641 return -1;
1642 break;
1643
1644 case 'S':
1645 /* A prefix operand without side-effect. */
1646 if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0)
1647 {
1648 prefix_ok = 1;
1649 break;
1650 }
1651 else
1652 return -1;
1653
1654 case 's':
1655 case 'y':
1656 case 'Y':
1657 /* If this is a prefixed insn with postincrement (side-effect),
1658 the prefix must not be DIP. */
1659 if (prefix_insn != NO_CRIS_PREFIX)
1660 {
1661 if (insn & 0x400)
1662 {
1663 const struct cris_opcode *prefix_opcodep
1664 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1665
1666 if (prefix_opcodep->match == DIP_OPCODE)
1667 return -1;
1668 }
1669
1670 prefix_ok = 1;
1671 }
1672 break;
1673
1674 case 'B':
1675 /* If we don't fall through, then the prefix is ok. */
1676 prefix_ok = 1;
1677
1678 /* A "push" prefix. Check for valid "push" size.
1679 In case of special register, it may be != 4. */
1680 if (prefix_insn != NO_CRIS_PREFIX)
1681 {
1682 /* Match the prefix insn to BDAPQ. */
1683 const struct cris_opcode *prefix_opcodep
1684 = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
1685
1686 if (prefix_opcodep->match == BDAP_QUICK_OPCODE)
1687 {
1688 int pushsize = (prefix_insn & 255);
1689
1690 if (pushsize > 127)
1691 pushsize -= 256;
1692
1693 if (s[1] == 'P')
1694 {
1695 unsigned int spec_reg = (insn >> 12) & 15;
1696 const struct cris_spec_reg *sregp
1697 = spec_reg_info (spec_reg, disdata->distype);
1698
1699 /* For a special-register, the "prefix size" must
1700 match the size of the register. */
1701 if (sregp && sregp->reg_size == (unsigned int) -pushsize)
1702 break;
1703 }
1704 else if (s[1] == 'R')
1705 {
1706 if ((insn & 0x30) == 0x20 && pushsize == -4)
1707 break;
1708 }
1709 /* FIXME: Should abort here; next constraint letter
1710 *must* be 'P' or 'R'. */
1711 }
1712 }
1713 return -1;
1714
1715 case 'D':
1716 retval = (((insn >> 12) & 15) == (insn & 15));
1717 if (!retval)
1718 return -1;
1719 else
1720 retval += 4;
1721 break;
1722
1723 case 'P':
1724 {
1725 const struct cris_spec_reg *sregp
1726 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
1727
1728 /* Since we match four bits, we will give a value of 4-1 = 3
1729 in a match. If there is a corresponding exact match of a
1730 special register in another pattern, it will get a value of
1731 4, which will be higher. This should be correct in that an
1732 exact pattern would match better than a general pattern.
1733
1734 Note that there is a reason for not returning zero; the
1735 pattern for "clear" is partly matched in the bit-pattern
1736 (the two lower bits must be zero), while the bit-pattern
1737 for a move from a special register is matched in the
1738 register constraint. */
1739
1740 if (sregp != NULL)
1741 {
1742 retval += 3;
1743 break;
1744 }
1745 else
1746 return -1;
1747 }
1748 }
1749
1750 if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok)
1751 return -1;
1752
1753 return retval;
1754 }
1755
1756 /* Format number as hex with a leading "0x" into outbuffer. */
1757
1758 static char *
1759 format_hex (unsigned long number,
1760 char *outbuffer,
1761 struct cris_disasm_data *disdata)
1762 {
1763 /* Truncate negative numbers on >32-bit hosts. */
1764 number &= 0xffffffff;
1765
1766 sprintf (outbuffer, "0x%lx", number);
1767
1768 /* Save this value for the "case" support. */
1769 if (TRACE_CASE)
1770 last_immediate = number;
1771
1772 return outbuffer + strlen (outbuffer);
1773 }
1774
1775 /* Format number as decimal into outbuffer. Parameter signedp says
1776 whether the number should be formatted as signed (!= 0) or
1777 unsigned (== 0). */
1778
1779 static char *
1780 format_dec (long number, char *outbuffer, int signedp)
1781 {
1782 last_immediate = number;
1783 sprintf (outbuffer, signedp ? "%ld" : "%lu", number);
1784
1785 return outbuffer + strlen (outbuffer);
1786 }
1787
1788 /* Format the name of the general register regno into outbuffer. */
1789
1790 static char *
1791 format_reg (struct cris_disasm_data *disdata,
1792 int regno,
1793 char *outbuffer_start,
1794 bfd_boolean with_reg_prefix)
1795 {
1796 char *outbuffer = outbuffer_start;
1797
1798 if (with_reg_prefix)
1799 *outbuffer++ = REGISTER_PREFIX_CHAR;
1800
1801 switch (regno)
1802 {
1803 case 15:
1804 /* For v32, there is no context in which we output PC. */
1805 if (disdata->distype == cris_dis_v32)
1806 strcpy (outbuffer, "acr");
1807 else
1808 strcpy (outbuffer, "pc");
1809 break;
1810
1811 case 14:
1812 strcpy (outbuffer, "sp");
1813 break;
1814
1815 default:
1816 sprintf (outbuffer, "r%d", regno);
1817 break;
1818 }
1819
1820 return outbuffer_start + strlen (outbuffer_start);
1821 }
1822
1823 /* Format the name of a support register into outbuffer. */
1824
1825 static char *
1826 format_sup_reg (unsigned int regno,
1827 char *outbuffer_start,
1828 bfd_boolean with_reg_prefix)
1829 {
1830 char *outbuffer = outbuffer_start;
1831 int i;
1832
1833 if (with_reg_prefix)
1834 *outbuffer++ = REGISTER_PREFIX_CHAR;
1835
1836 for (i = 0; cris_support_regs[i].name != NULL; i++)
1837 if (cris_support_regs[i].number == regno)
1838 {
1839 sprintf (outbuffer, "%s", cris_support_regs[i].name);
1840 return outbuffer_start + strlen (outbuffer_start);
1841 }
1842
1843 /* There's supposed to be register names covering all numbers, though
1844 some may be generic names. */
1845 sprintf (outbuffer, "format_sup_reg-BUG");
1846 return outbuffer_start + strlen (outbuffer_start);
1847 }
1848
1849 /* Return the length of an instruction. */
1850
1851 static unsigned
1852 bytes_to_skip (unsigned int insn,
1853 const struct cris_opcode *matchedp,
1854 enum cris_disass_family distype,
1855 const struct cris_opcode *prefix_matchedp)
1856 {
1857 /* Each insn is a word plus "immediate" operands. */
1858 unsigned to_skip = 2;
1859 const char *template = matchedp->args;
1860 const char *s;
1861
1862 for (s = template; *s; s++)
1863 if ((*s == 's' || *s == 'N' || *s == 'Y')
1864 && (insn & 0x400) && (insn & 15) == 15
1865 && prefix_matchedp == NULL)
1866 {
1867 /* Immediate via [pc+], so we have to check the size of the
1868 operand. */
1869 int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3));
1870
1871 if (matchedp->imm_oprnd_size == SIZE_FIX_32)
1872 to_skip += 4;
1873 else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG)
1874 {
1875 const struct cris_spec_reg *sregp
1876 = spec_reg_info ((insn >> 12) & 15, distype);
1877
1878 /* FIXME: Improve error handling; should have been caught
1879 earlier. */
1880 if (sregp == NULL)
1881 return 2;
1882
1883 /* PC is incremented by two, not one, for a byte. Except on
1884 CRISv32, where constants are always DWORD-size for
1885 special registers. */
1886 to_skip +=
1887 distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1;
1888 }
1889 else
1890 to_skip += (mode_size + 1) & ~1;
1891 }
1892 else if (*s == 'n')
1893 to_skip += 4;
1894 else if (*s == 'b')
1895 to_skip += 2;
1896
1897 return to_skip;
1898 }
1899
1900 /* Print condition code flags. */
1901
1902 static char *
1903 print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp)
1904 {
1905 /* Use the v8 (Etrax 100) flag definitions for disassembly.
1906 The differences with v0 (Etrax 1..4) vs. Svinto are:
1907 v0 'd' <=> v8 'm'
1908 v0 'e' <=> v8 'b'.
1909 FIXME: Emit v0..v3 flag names somehow. */
1910 static const char v8_fnames[] = "cvznxibm";
1911 static const char v32_fnames[] = "cvznxiup";
1912 const char *fnames
1913 = disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames;
1914
1915 unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15));
1916 int i;
1917
1918 for (i = 0; i < 8; i++)
1919 if (flagbits & (1 << i))
1920 *cp++ = fnames[i];
1921
1922 return cp;
1923 }
1924
1925 /* Print out an insn with its operands, and update the info->insn_type
1926 fields. The prefix_opcodep and the rest hold a prefix insn that is
1927 supposed to be output as an address mode. */
1928
1929 static void
1930 print_with_operands (const struct cris_opcode *opcodep,
1931 unsigned int insn,
1932 unsigned char *buffer,
1933 bfd_vma addr,
1934 disassemble_info *info,
1935 /* If a prefix insn was before this insn (and is supposed
1936 to be output as an address), here is a description of
1937 it. */
1938 const struct cris_opcode *prefix_opcodep,
1939 unsigned int prefix_insn,
1940 unsigned char *prefix_buffer,
1941 bfd_boolean with_reg_prefix)
1942 {
1943 /* Get a buffer of somewhat reasonable size where we store
1944 intermediate parts of the insn. */
1945 char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2];
1946 char *tp = temp;
1947 static const char mode_char[] = "bwd?";
1948 const char *s;
1949 const char *cs;
1950 struct cris_disasm_data *disdata
1951 = (struct cris_disasm_data *) info->private_data;
1952
1953 /* Print out the name first thing we do. */
1954 (*info->fprintf_func) (info->stream, "%s", opcodep->name);
1955
1956 cs = opcodep->args;
1957 s = cs;
1958
1959 /* Ignore any prefix indicator. */
1960 if (*s == 'p')
1961 s++;
1962
1963 if (*s == 'm' || *s == 'M' || *s == 'z')
1964 {
1965 *tp++ = '.';
1966
1967 /* Get the size-letter. */
1968 *tp++ = *s == 'M'
1969 ? (insn & 0x8000 ? 'd'
1970 : insn & 0x4000 ? 'w' : 'b')
1971 : mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)];
1972
1973 /* Ignore the size and the space character that follows. */
1974 s += 2;
1975 }
1976
1977 /* Add a space if this isn't a long-branch, because for those will add
1978 the condition part of the name later. */
1979 if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256))
1980 *tp++ = ' ';
1981
1982 /* Fill in the insn-type if deducible from the name (and there's no
1983 better way). */
1984 if (opcodep->name[0] == 'j')
1985 {
1986 if (CONST_STRNEQ (opcodep->name, "jsr"))
1987 /* It's "jsr" or "jsrc". */
1988 info->insn_type = dis_jsr;
1989 else
1990 /* Any other jump-type insn is considered a branch. */
1991 info->insn_type = dis_branch;
1992 }
1993
1994 /* We might know some more fields right now. */
1995 info->branch_delay_insns = opcodep->delayed;
1996
1997 /* Handle operands. */
1998 for (; *s; s++)
1999 {
2000 switch (*s)
2001 {
2002 case 'T':
2003 tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix);
2004 break;
2005
2006 case 'A':
2007 if (with_reg_prefix)
2008 *tp++ = REGISTER_PREFIX_CHAR;
2009 *tp++ = 'a';
2010 *tp++ = 'c';
2011 *tp++ = 'r';
2012 break;
2013
2014 case '[':
2015 case ']':
2016 case ',':
2017 *tp++ = *s;
2018 break;
2019
2020 case '!':
2021 /* Ignore at this point; used at earlier stages to avoid
2022 recognition if there's a prefix at something that in other
2023 ways looks like a "pop". */
2024 break;
2025
2026 case 'd':
2027 /* Ignore. This is an optional ".d " on the large one of
2028 relaxable insns. */
2029 break;
2030
2031 case 'B':
2032 /* This was the prefix that made this a "push". We've already
2033 handled it by recognizing it, so signal that the prefix is
2034 handled by setting it to NULL. */
2035 prefix_opcodep = NULL;
2036 break;
2037
2038 case 'D':
2039 case 'r':
2040 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2041 break;
2042
2043 case 'R':
2044 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2045 break;
2046
2047 case 'n':
2048 {
2049 /* Like N but pc-relative to the start of the insn. */
2050 unsigned long number
2051 = (buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2052 + buffer[5] * 0x1000000 + addr);
2053
2054 /* Finish off and output previous formatted bytes. */
2055 *tp = 0;
2056 if (temp[0])
2057 (*info->fprintf_func) (info->stream, "%s", temp);
2058 tp = temp;
2059
2060 (*info->print_address_func) ((bfd_vma) number, info);
2061 }
2062 break;
2063
2064 case 'u':
2065 {
2066 /* Like n but the offset is bits <3:0> in the instruction. */
2067 unsigned long number = (buffer[0] & 0xf) * 2 + addr;
2068
2069 /* Finish off and output previous formatted bytes. */
2070 *tp = 0;
2071 if (temp[0])
2072 (*info->fprintf_func) (info->stream, "%s", temp);
2073 tp = temp;
2074
2075 (*info->print_address_func) ((bfd_vma) number, info);
2076 }
2077 break;
2078
2079 case 'N':
2080 case 'y':
2081 case 'Y':
2082 case 'S':
2083 case 's':
2084 /* Any "normal" memory operand. */
2085 if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL)
2086 {
2087 /* We're looking at [pc+], i.e. we need to output an immediate
2088 number, where the size can depend on different things. */
2089 long number;
2090 int signedp
2091 = ((*cs == 'z' && (insn & 0x20))
2092 || opcodep->match == BDAP_QUICK_OPCODE);
2093 int nbytes;
2094
2095 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2096 nbytes = 4;
2097 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2098 {
2099 const struct cris_spec_reg *sregp
2100 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2101
2102 /* A NULL return should have been as a non-match earlier,
2103 so catch it as an internal error in the error-case
2104 below. */
2105 if (sregp == NULL)
2106 /* Whatever non-valid size. */
2107 nbytes = 42;
2108 else
2109 /* PC is always incremented by a multiple of two.
2110 For CRISv32, immediates are always 4 bytes for
2111 special registers. */
2112 nbytes = disdata->distype == cris_dis_v32
2113 ? 4 : (sregp->reg_size + 1) & ~1;
2114 }
2115 else
2116 {
2117 int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3));
2118
2119 if (mode_size == 1)
2120 nbytes = 2;
2121 else
2122 nbytes = mode_size;
2123 }
2124
2125 switch (nbytes)
2126 {
2127 case 1:
2128 number = buffer[2];
2129 if (signedp && number > 127)
2130 number -= 256;
2131 break;
2132
2133 case 2:
2134 number = buffer[2] + buffer[3] * 256;
2135 if (signedp && number > 32767)
2136 number -= 65536;
2137 break;
2138
2139 case 4:
2140 number
2141 = buffer[2] + buffer[3] * 256 + buffer[4] * 65536
2142 + buffer[5] * 0x1000000;
2143 break;
2144
2145 default:
2146 strcpy (tp, "bug");
2147 tp += 3;
2148 number = 42;
2149 }
2150
2151 if ((*cs == 'z' && (insn & 0x20))
2152 || (opcodep->match == BDAP_QUICK_OPCODE
2153 && (nbytes <= 2 || buffer[1 + nbytes] == 0)))
2154 tp = format_dec (number, tp, signedp);
2155 else
2156 {
2157 unsigned int highbyte = (number >> 24) & 0xff;
2158
2159 /* Either output this as an address or as a number. If it's
2160 a dword with the same high-byte as the address of the
2161 insn, assume it's an address, and also if it's a non-zero
2162 non-0xff high-byte. If this is a jsr or a jump, then
2163 it's definitely an address. */
2164 if (nbytes == 4
2165 && (highbyte == ((addr >> 24) & 0xff)
2166 || (highbyte != 0 && highbyte != 0xff)
2167 || info->insn_type == dis_branch
2168 || info->insn_type == dis_jsr))
2169 {
2170 /* Finish off and output previous formatted bytes. */
2171 *tp = 0;
2172 tp = temp;
2173 if (temp[0])
2174 (*info->fprintf_func) (info->stream, "%s", temp);
2175
2176 (*info->print_address_func) ((bfd_vma) number, info);
2177
2178 info->target = number;
2179 }
2180 else
2181 tp = format_hex (number, tp, disdata);
2182 }
2183 }
2184 else
2185 {
2186 /* Not an immediate number. Then this is a (possibly
2187 prefixed) memory operand. */
2188 if (info->insn_type != dis_nonbranch)
2189 {
2190 int mode_size
2191 = 1 << ((insn >> 4)
2192 & (opcodep->args[0] == 'z' ? 1 : 3));
2193 int size;
2194 info->insn_type = dis_dref;
2195 info->flags |= CRIS_DIS_FLAG_MEMREF;
2196
2197 if (opcodep->imm_oprnd_size == SIZE_FIX_32)
2198 size = 4;
2199 else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
2200 {
2201 const struct cris_spec_reg *sregp
2202 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2203
2204 /* FIXME: Improve error handling; should have been caught
2205 earlier. */
2206 if (sregp == NULL)
2207 size = 4;
2208 else
2209 size = sregp->reg_size;
2210 }
2211 else
2212 size = mode_size;
2213
2214 info->data_size = size;
2215 }
2216
2217 *tp++ = '[';
2218
2219 if (prefix_opcodep
2220 /* We don't match dip with a postincremented field
2221 as a side-effect address mode. */
2222 && ((insn & 0x400) == 0
2223 || prefix_opcodep->match != DIP_OPCODE))
2224 {
2225 if (insn & 0x400)
2226 {
2227 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2228 *tp++ = '=';
2229 }
2230
2231
2232 /* We mainly ignore the prefix format string when the
2233 address-mode syntax is output. */
2234 switch (prefix_opcodep->match)
2235 {
2236 case DIP_OPCODE:
2237 /* It's [r], [r+] or [pc+]. */
2238 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2239 {
2240 /* It's [pc+]. This cannot possibly be anything
2241 but an address. */
2242 unsigned long number
2243 = prefix_buffer[2] + prefix_buffer[3] * 256
2244 + prefix_buffer[4] * 65536
2245 + prefix_buffer[5] * 0x1000000;
2246
2247 info->target = (bfd_vma) number;
2248
2249 /* Finish off and output previous formatted
2250 data. */
2251 *tp = 0;
2252 tp = temp;
2253 if (temp[0])
2254 (*info->fprintf_func) (info->stream, "%s", temp);
2255
2256 (*info->print_address_func) ((bfd_vma) number, info);
2257 }
2258 else
2259 {
2260 /* For a memref in an address, we use target2.
2261 In this case, target is zero. */
2262 info->flags
2263 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2264 | CRIS_DIS_FLAG_MEM_TARGET2_MEM);
2265
2266 info->target2 = prefix_insn & 15;
2267
2268 *tp++ = '[';
2269 tp = format_reg (disdata, prefix_insn & 15, tp,
2270 with_reg_prefix);
2271 if (prefix_insn & 0x400)
2272 *tp++ = '+';
2273 *tp++ = ']';
2274 }
2275 break;
2276
2277 case BDAP_QUICK_OPCODE:
2278 {
2279 int number;
2280
2281 number = prefix_buffer[0];
2282 if (number > 127)
2283 number -= 256;
2284
2285 /* Output "reg+num" or, if num < 0, "reg-num". */
2286 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2287 with_reg_prefix);
2288 if (number >= 0)
2289 *tp++ = '+';
2290 tp = format_dec (number, tp, 1);
2291
2292 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2293 info->target = (prefix_insn >> 12) & 15;
2294 info->target2 = (bfd_vma) number;
2295 break;
2296 }
2297
2298 case BIAP_OPCODE:
2299 /* Output "r+R.m". */
2300 tp = format_reg (disdata, prefix_insn & 15, tp,
2301 with_reg_prefix);
2302 *tp++ = '+';
2303 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2304 with_reg_prefix);
2305 *tp++ = '.';
2306 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2307
2308 info->flags
2309 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2310 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2311
2312 | ((prefix_insn & 0x8000)
2313 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT4
2314 : ((prefix_insn & 0x8000)
2315 ? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0)));
2316
2317 /* Is it the casejump? It's a "adds.w [pc+r%d.w],pc". */
2318 if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f)
2319 /* Then start interpreting data as offsets. */
2320 case_offset_counter = no_of_case_offsets;
2321 break;
2322
2323 case BDAP_INDIR_OPCODE:
2324 /* Output "r+s.m", or, if "s" is [pc+], "r+s" or
2325 "r-s". */
2326 tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
2327 with_reg_prefix);
2328
2329 if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
2330 {
2331 long number;
2332 unsigned int nbytes;
2333
2334 /* It's a value. Get its size. */
2335 int mode_size = 1 << ((prefix_insn >> 4) & 3);
2336
2337 if (mode_size == 1)
2338 nbytes = 2;
2339 else
2340 nbytes = mode_size;
2341
2342 switch (nbytes)
2343 {
2344 case 1:
2345 number = prefix_buffer[2];
2346 if (number > 127)
2347 number -= 256;
2348 break;
2349
2350 case 2:
2351 number = prefix_buffer[2] + prefix_buffer[3] * 256;
2352 if (number > 32767)
2353 number -= 65536;
2354 break;
2355
2356 case 4:
2357 number
2358 = prefix_buffer[2] + prefix_buffer[3] * 256
2359 + prefix_buffer[4] * 65536
2360 + prefix_buffer[5] * 0x1000000;
2361 break;
2362
2363 default:
2364 strcpy (tp, "bug");
2365 tp += 3;
2366 number = 42;
2367 }
2368
2369 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2370 info->target2 = (bfd_vma) number;
2371
2372 /* If the size is dword, then assume it's an
2373 address. */
2374 if (nbytes == 4)
2375 {
2376 /* Finish off and output previous formatted
2377 bytes. */
2378 *tp++ = '+';
2379 *tp = 0;
2380 tp = temp;
2381 (*info->fprintf_func) (info->stream, "%s", temp);
2382
2383 (*info->print_address_func) ((bfd_vma) number, info);
2384 }
2385 else
2386 {
2387 if (number >= 0)
2388 *tp++ = '+';
2389 tp = format_dec (number, tp, 1);
2390 }
2391 }
2392 else
2393 {
2394 /* Output "r+[R].m" or "r+[R+].m". */
2395 *tp++ = '+';
2396 *tp++ = '[';
2397 tp = format_reg (disdata, prefix_insn & 15, tp,
2398 with_reg_prefix);
2399 if (prefix_insn & 0x400)
2400 *tp++ = '+';
2401 *tp++ = ']';
2402 *tp++ = '.';
2403 *tp++ = mode_char[(prefix_insn >> 4) & 3];
2404
2405 info->flags
2406 |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
2407 | CRIS_DIS_FLAG_MEM_TARGET2_MEM
2408 | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
2409
2410 | (((prefix_insn >> 4) == 2)
2411 ? 0
2412 : (((prefix_insn >> 4) & 3) == 1
2413 ? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD
2414 : CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE)));
2415 }
2416 break;
2417
2418 default:
2419 (*info->fprintf_func) (info->stream, "?prefix-bug");
2420 }
2421
2422 /* To mark that the prefix is used, reset it. */
2423 prefix_opcodep = NULL;
2424 }
2425 else
2426 {
2427 tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
2428
2429 info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
2430 info->target = insn & 15;
2431
2432 if (insn & 0x400)
2433 *tp++ = '+';
2434 }
2435 *tp++ = ']';
2436 }
2437 break;
2438
2439 case 'x':
2440 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2441 *tp++ = '.';
2442 *tp++ = mode_char[(insn >> 4) & 3];
2443 break;
2444
2445 case 'I':
2446 tp = format_dec (insn & 63, tp, 0);
2447 break;
2448
2449 case 'b':
2450 {
2451 int where = buffer[2] + buffer[3] * 256;
2452
2453 if (where > 32767)
2454 where -= 65536;
2455
2456 where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4);
2457
2458 if (insn == BA_PC_INCR_OPCODE)
2459 info->insn_type = dis_branch;
2460 else
2461 info->insn_type = dis_condbranch;
2462
2463 info->target = (bfd_vma) where;
2464
2465 *tp = 0;
2466 tp = temp;
2467 (*info->fprintf_func) (info->stream, "%s%s ",
2468 temp, cris_cc_strings[insn >> 12]);
2469
2470 (*info->print_address_func) ((bfd_vma) where, info);
2471 }
2472 break;
2473
2474 case 'c':
2475 tp = format_dec (insn & 31, tp, 0);
2476 break;
2477
2478 case 'C':
2479 tp = format_dec (insn & 15, tp, 0);
2480 break;
2481
2482 case 'o':
2483 {
2484 long offset = insn & 0xfe;
2485 bfd_vma target;
2486
2487 if (insn & 1)
2488 offset |= ~0xff;
2489
2490 if (opcodep->match == BA_QUICK_OPCODE)
2491 info->insn_type = dis_branch;
2492 else
2493 info->insn_type = dis_condbranch;
2494
2495 target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset;
2496 info->target = target;
2497 *tp = 0;
2498 tp = temp;
2499 (*info->fprintf_func) (info->stream, "%s", temp);
2500 (*info->print_address_func) (target, info);
2501 }
2502 break;
2503
2504 case 'Q':
2505 case 'O':
2506 {
2507 long number = buffer[0];
2508
2509 if (number > 127)
2510 number = number - 256;
2511
2512 tp = format_dec (number, tp, 1);
2513 *tp++ = ',';
2514 tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
2515 }
2516 break;
2517
2518 case 'f':
2519 tp = print_flags (disdata, insn, tp);
2520 break;
2521
2522 case 'i':
2523 tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1);
2524 break;
2525
2526 case 'P':
2527 {
2528 const struct cris_spec_reg *sregp
2529 = spec_reg_info ((insn >> 12) & 15, disdata->distype);
2530
2531 if (sregp->name == NULL)
2532 /* Should have been caught as a non-match eariler. */
2533 *tp++ = '?';
2534 else
2535 {
2536 if (with_reg_prefix)
2537 *tp++ = REGISTER_PREFIX_CHAR;
2538 strcpy (tp, sregp->name);
2539 tp += strlen (tp);
2540 }
2541 }
2542 break;
2543
2544 default:
2545 strcpy (tp, "???");
2546 tp += 3;
2547 }
2548 }
2549
2550 *tp = 0;
2551
2552 if (prefix_opcodep)
2553 (*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")",
2554 prefix_opcodep->name, prefix_opcodep->args);
2555
2556 (*info->fprintf_func) (info->stream, "%s", temp);
2557
2558 /* Get info for matching case-tables, if we don't have any active.
2559 We assume that the last constant seen is used; either in the insn
2560 itself or in a "move.d const,rN, sub.d rN,rM"-like sequence. */
2561 if (TRACE_CASE && case_offset_counter == 0)
2562 {
2563 if (CONST_STRNEQ (opcodep->name, "sub"))
2564 case_offset = last_immediate;
2565
2566 /* It could also be an "add", if there are negative case-values. */
2567 else if (CONST_STRNEQ (opcodep->name, "add"))
2568 /* The first case is the negated operand to the add. */
2569 case_offset = -last_immediate;
2570
2571 /* A bound insn will tell us the number of cases. */
2572 else if (CONST_STRNEQ (opcodep->name, "bound"))
2573 no_of_case_offsets = last_immediate + 1;
2574
2575 /* A jump or jsr or branch breaks the chain of insns for a
2576 case-table, so assume default first-case again. */
2577 else if (info->insn_type == dis_jsr
2578 || info->insn_type == dis_branch
2579 || info->insn_type == dis_condbranch)
2580 case_offset = 0;
2581 }
2582 }
2583
2584
2585 /* Print the CRIS instruction at address memaddr on stream. Returns
2586 length of the instruction, in bytes. Prefix register names with `$' if
2587 WITH_REG_PREFIX. */
2588
2589 static int
2590 print_insn_cris_generic (bfd_vma memaddr,
2591 disassemble_info *info,
2592 bfd_boolean with_reg_prefix)
2593 {
2594 int nbytes;
2595 unsigned int insn;
2596 const struct cris_opcode *matchedp;
2597 int advance = 0;
2598 struct cris_disasm_data *disdata
2599 = (struct cris_disasm_data *) info->private_data;
2600
2601 /* No instruction will be disassembled as longer than this number of
2602 bytes; stacked prefixes will not be expanded. */
2603 unsigned char buffer[MAX_BYTES_PER_CRIS_INSN];
2604 unsigned char *bufp;
2605 int status = 0;
2606 bfd_vma addr;
2607
2608 /* There will be an "out of range" error after the last instruction.
2609 Reading pairs of bytes in decreasing number, we hope that we will get
2610 at least the amount that we will consume.
2611
2612 If we can't get any data, or we do not get enough data, we print
2613 the error message. */
2614
2615 nbytes = info->buffer_length;
2616 if (nbytes > MAX_BYTES_PER_CRIS_INSN)
2617 nbytes = MAX_BYTES_PER_CRIS_INSN;
2618 status = (*info->read_memory_func) (memaddr, buffer, nbytes, info);
2619
2620 /* If we did not get all we asked for, then clear the rest.
2621 Hopefully this makes a reproducible result in case of errors. */
2622 if (nbytes != MAX_BYTES_PER_CRIS_INSN)
2623 memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes);
2624
2625 addr = memaddr;
2626 bufp = buffer;
2627
2628 /* Set some defaults for the insn info. */
2629 info->insn_info_valid = 1;
2630 info->branch_delay_insns = 0;
2631 info->data_size = 0;
2632 info->insn_type = dis_nonbranch;
2633 info->flags = 0;
2634 info->target = 0;
2635 info->target2 = 0;
2636
2637 /* If we got any data, disassemble it. */
2638 if (nbytes != 0)
2639 {
2640 matchedp = NULL;
2641
2642 insn = bufp[0] + bufp[1] * 256;
2643
2644 /* If we're in a case-table, don't disassemble the offsets. */
2645 if (TRACE_CASE && case_offset_counter != 0)
2646 {
2647 info->insn_type = dis_noninsn;
2648 advance += 2;
2649
2650 /* If to print data as offsets, then shortcut here. */
2651 (*info->fprintf_func) (info->stream, "case %ld%s: -> ",
2652 case_offset + no_of_case_offsets
2653 - case_offset_counter,
2654 case_offset_counter == 1 ? "/default" :
2655 "");
2656
2657 (*info->print_address_func) ((bfd_vma)
2658 ((short) (insn)
2659 + (long) (addr
2660 - (no_of_case_offsets
2661 - case_offset_counter)
2662 * 2)), info);
2663 case_offset_counter--;
2664
2665 /* The default case start (without a "sub" or "add") must be
2666 zero. */
2667 if (case_offset_counter == 0)
2668 case_offset = 0;
2669 }
2670 else if (insn == 0)
2671 {
2672 /* We're often called to disassemble zeroes. While this is a
2673 valid "bcc .+2" insn, it is also useless enough and enough
2674 of a nuiscance that we will just output "bcc .+2" for it
2675 and signal it as a noninsn. */
2676 (*info->fprintf_func) (info->stream,
2677 disdata->distype == cris_dis_v32
2678 ? "bcc ." : "bcc .+2");
2679 info->insn_type = dis_noninsn;
2680 advance += 2;
2681 }
2682 else
2683 {
2684 const struct cris_opcode *prefix_opcodep = NULL;
2685 unsigned char *prefix_buffer = bufp;
2686 unsigned int prefix_insn = insn;
2687 int prefix_size = 0;
2688
2689 matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata);
2690
2691 /* Check if we're supposed to write out prefixes as address
2692 modes and if this was a prefix. */
2693 if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p')
2694 {
2695 /* If it's a prefix, put it into the prefix vars and get the
2696 main insn. */
2697 prefix_size = bytes_to_skip (prefix_insn, matchedp,
2698 disdata->distype, NULL);
2699 prefix_opcodep = matchedp;
2700
2701 insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256;
2702 matchedp = get_opcode_entry (insn, prefix_insn, disdata);
2703
2704 if (matchedp != NULL)
2705 {
2706 addr += prefix_size;
2707 bufp += prefix_size;
2708 advance += prefix_size;
2709 }
2710 else
2711 {
2712 /* The "main" insn wasn't valid, at least not when
2713 prefixed. Put back things enough to output the
2714 prefix insn only, as a normal insn. */
2715 matchedp = prefix_opcodep;
2716 insn = prefix_insn;
2717 prefix_opcodep = NULL;
2718 }
2719 }
2720
2721 if (matchedp == NULL)
2722 {
2723 (*info->fprintf_func) (info->stream, "??0x%x", insn);
2724 advance += 2;
2725
2726 info->insn_type = dis_noninsn;
2727 }
2728 else
2729 {
2730 advance
2731 += bytes_to_skip (insn, matchedp, disdata->distype,
2732 prefix_opcodep);
2733
2734 /* The info_type and assorted fields will be set according
2735 to the operands. */
2736 print_with_operands (matchedp, insn, bufp, addr, info,
2737 prefix_opcodep, prefix_insn,
2738 prefix_buffer, with_reg_prefix);
2739 }
2740 }
2741 }
2742 else
2743 info->insn_type = dis_noninsn;
2744
2745 /* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error
2746 status when reading that much, and the insn decoding indicated a
2747 length exceeding what we read, there is an error. */
2748 if (status != 0 && (nbytes == 0 || advance > nbytes))
2749 {
2750 (*info->memory_error_func) (status, memaddr, info);
2751 return -1;
2752 }
2753
2754 /* Max supported insn size with one folded prefix insn. */
2755 info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN;
2756
2757 /* I would like to set this to a fixed value larger than the actual
2758 number of bytes to print in order to avoid spaces between bytes,
2759 but objdump.c (2.9.1) does not like that, so we print 16-bit
2760 chunks, which is the next choice. */
2761 info->bytes_per_chunk = 2;
2762
2763 /* Printing bytes in order of increasing addresses makes sense,
2764 especially on a little-endian target.
2765 This is completely the opposite of what you think; setting this to
2766 BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N
2767 we want. */
2768 info->display_endian = BFD_ENDIAN_BIG;
2769
2770 return advance;
2771 }
2772
2773 /* Disassemble, prefixing register names with `$'. CRIS v0..v10. */
2774 #if 0
2775 static int
2776 print_insn_cris_with_register_prefix (bfd_vma vma,
2777 disassemble_info *info)
2778 {
2779 if (info->private_data == NULL
2780 && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
2781 return -1;
2782 return print_insn_cris_generic (vma, info, TRUE);
2783 }
2784 #endif
2785 /* Disassemble, prefixing register names with `$'. CRIS v32. */
2786
2787 static int
2788 print_insn_crisv32_with_register_prefix (bfd_vma vma,
2789 disassemble_info *info)
2790 {
2791 if (info->private_data == NULL
2792 && !cris_parse_disassembler_options (info, cris_dis_v32))
2793 return -1;
2794 return print_insn_cris_generic (vma, info, TRUE);
2795 }
2796
2797 #if 0
2798 /* Disassemble, prefixing register names with `$'.
2799 Common v10 and v32 subset. */
2800
2801 static int
2802 print_insn_crisv10_v32_with_register_prefix (bfd_vma vma,
2803 disassemble_info *info)
2804 {
2805 if (info->private_data == NULL
2806 && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
2807 return -1;
2808 return print_insn_cris_generic (vma, info, TRUE);
2809 }
2810
2811 /* Disassemble, no prefixes on register names. CRIS v0..v10. */
2812
2813 static int
2814 print_insn_cris_without_register_prefix (bfd_vma vma,
2815 disassemble_info *info)
2816 {
2817 if (info->private_data == NULL
2818 && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
2819 return -1;
2820 return print_insn_cris_generic (vma, info, FALSE);
2821 }
2822
2823 /* Disassemble, no prefixes on register names. CRIS v32. */
2824
2825 static int
2826 print_insn_crisv32_without_register_prefix (bfd_vma vma,
2827 disassemble_info *info)
2828 {
2829 if (info->private_data == NULL
2830 && !cris_parse_disassembler_options (info, cris_dis_v32))
2831 return -1;
2832 return print_insn_cris_generic (vma, info, FALSE);
2833 }
2834
2835 /* Disassemble, no prefixes on register names.
2836 Common v10 and v32 subset. */
2837
2838 static int
2839 print_insn_crisv10_v32_without_register_prefix (bfd_vma vma,
2840 disassemble_info *info)
2841 {
2842 if (info->private_data == NULL
2843 && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
2844 return -1;
2845 return print_insn_cris_generic (vma, info, FALSE);
2846 }
2847 #endif
2848
2849 int
2850 print_insn_crisv32 (bfd_vma vma,
2851 disassemble_info *info)
2852 {
2853 return print_insn_crisv32_with_register_prefix(vma, info);
2854 }
2855
2856 /* Return a disassembler-function that prints registers with a `$' prefix,
2857 or one that prints registers without a prefix.
2858 FIXME: We should improve the solution to avoid the multitude of
2859 functions seen above. */
2860 #if 0
2861 disassembler_ftype
2862 cris_get_disassembler (bfd *abfd)
2863 {
2864 /* If there's no bfd in sight, we return what is valid as input in all
2865 contexts if fed back to the assembler: disassembly *with* register
2866 prefix. Unfortunately this will be totally wrong for v32. */
2867 if (abfd == NULL)
2868 return print_insn_cris_with_register_prefix;
2869
2870 if (bfd_get_symbol_leading_char (abfd) == 0)
2871 {
2872 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2873 return print_insn_crisv32_with_register_prefix;
2874 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2875 return print_insn_crisv10_v32_with_register_prefix;
2876
2877 /* We default to v10. This may be specifically specified in the
2878 bfd mach, but is also the default setting. */
2879 return print_insn_cris_with_register_prefix;
2880 }
2881
2882 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
2883 return print_insn_crisv32_without_register_prefix;
2884 if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
2885 return print_insn_crisv10_v32_without_register_prefix;
2886 return print_insn_cris_without_register_prefix;
2887 }
2888 #endif
2889 /* Local variables:
2890 eval: (c-set-style "gnu")
2891 indent-tabs-mode: t
2892 End: */
CRIS target port of Qemu