Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Disassemble V850 instructions. |
df7b86aa NC |
2 | Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005, 2007, 2010, |
3 | 2012 Free Software Foundation, Inc. | |
252b5132 | 4 | |
9b201bb5 NC |
5 | This file is part of the GNU opcodes library. |
6 | ||
7 | This library is free software; you can redistribute it and/or modify | |
8ad30312 | 8 | it under the terms of the GNU General Public License as published by |
9b201bb5 NC |
9 | the Free Software Foundation; either version 3, or (at your option) |
10 | any later version. | |
252b5132 | 11 | |
9b201bb5 NC |
12 | It is distributed in the hope that it will be useful, but WITHOUT |
13 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
14 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
15 | License for more details. | |
252b5132 | 16 | |
8ad30312 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
47b0e7ad NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 RH |
21 | |
22 | ||
0d8dfecf | 23 | #include "sysdep.h" |
df7b86aa | 24 | #include <stdio.h> |
47b0e7ad | 25 | #include "opcode/v850.h" |
252b5132 RH |
26 | #include "dis-asm.h" |
27 | #include "opintl.h" | |
28 | ||
29 | static const char *const v850_reg_names[] = | |
1cd986c5 NC |
30 | { |
31 | "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7", | |
47b0e7ad NC |
32 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
33 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
1cd986c5 NC |
34 | "r24", "r25", "r26", "r27", "r28", "r29", "ep", "lp" |
35 | }; | |
252b5132 RH |
36 | |
37 | static const char *const v850_sreg_names[] = | |
1cd986c5 NC |
38 | { |
39 | "eipc/vip/mpm", "eipsw/mpc", "fepc/tid", "fepsw/ppa", "ecr/vmecr", "psw/vmtid", | |
40 | "sr6/fpsr/vmadr/dcc", "sr7/fpepc/dc0", | |
41 | "sr8/fpst/vpecr/dcv1", "sr9/fpcc/vptid", "sr10/fpcfg/vpadr/spal", "sr11/spau", | |
42 | "sr12/vdecr/ipa0l", "eiic/vdtid/ipa0u", "feic/ipa1l", "dbic/ipa1u", | |
43 | "ctpc/ipa2l", "ctpsw/ipa2u", "dbpc/ipa3l", "dbpsw/ipa3u", "ctbp/dpa0l", | |
44 | "dir/dpa0u", "bpc/dpa0u", "asid/dpa1l", | |
45 | "bpav/dpa1u", "bpam/dpa2l", "bpdv/dpa2u", "bpdm/dpa3l", "eiwr/dpa3u", | |
46 | "fewr", "dbwr", "bsel" | |
47 | }; | |
252b5132 RH |
48 | |
49 | static const char *const v850_cc_names[] = | |
1cd986c5 NC |
50 | { |
51 | "v", "c/l", "z", "nh", "s/n", "t", "lt", "le", | |
52 | "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt" | |
53 | }; | |
252b5132 | 54 | |
1cd986c5 | 55 | static const char *const v850_float_cc_names[] = |
252b5132 | 56 | { |
1cd986c5 NC |
57 | "f/t", "un/or", "eq/neq", "ueq/ogl", "olt/uge", "ult/oge", "ole/ugt", "ule/ogt", |
58 | "sf/st", "ngle/gle", "seq/sne", "ngl/gl", "lt/nlt", "nge/ge", "le/nle", "ngt/gt" | |
59 | }; | |
47b0e7ad | 60 | |
47b0e7ad | 61 | |
1cd986c5 NC |
62 | static void |
63 | print_value (int flags, bfd_vma memaddr, struct disassemble_info *info, long value) | |
64 | { | |
65 | if (flags & V850_PCREL) | |
66 | { | |
67 | bfd_vma addr = value + memaddr; | |
68 | info->print_address_func (addr, info); | |
69 | } | |
70 | else if (flags & V850_OPERAND_DISP) | |
71 | { | |
72 | if (flags & V850_OPERAND_SIGNED) | |
73 | { | |
74 | info->fprintf_func (info->stream, "%ld", value); | |
75 | } | |
76 | else | |
77 | { | |
78 | info->fprintf_func (info->stream, "%lu", value); | |
79 | } | |
80 | } | |
81 | else if (flags & V850E_IMMEDIATE32) | |
82 | { | |
83 | info->fprintf_func (info->stream, "0x%lx", value); | |
84 | } | |
85 | else | |
86 | { | |
87 | if (flags & V850_OPERAND_SIGNED) | |
88 | { | |
89 | info->fprintf_func (info->stream, "%ld", value); | |
90 | } | |
91 | else | |
92 | { | |
93 | info->fprintf_func (info->stream, "%lu", value); | |
94 | } | |
95 | } | |
96 | } | |
47b0e7ad | 97 | |
1cd986c5 NC |
98 | static long |
99 | get_operand_value (const struct v850_operand *operand, | |
100 | unsigned long insn, | |
101 | int bytes_read, | |
102 | bfd_vma memaddr, | |
103 | struct disassemble_info * info, | |
104 | bfd_boolean noerror, | |
105 | int *invalid) | |
106 | { | |
107 | long value; | |
108 | bfd_byte buffer[4]; | |
109 | ||
110 | if ((operand->flags & V850E_IMMEDIATE16) | |
111 | || (operand->flags & V850E_IMMEDIATE16HI)) | |
112 | { | |
113 | int status = info->read_memory_func (memaddr + bytes_read, buffer, 2, info); | |
114 | ||
115 | if (status == 0) | |
116 | { | |
117 | value = bfd_getl16 (buffer); | |
118 | ||
119 | if (operand->flags & V850E_IMMEDIATE16HI) | |
120 | value <<= 16; | |
121 | ||
122 | return value; | |
123 | } | |
124 | ||
125 | if (!noerror) | |
126 | info->memory_error_func (status, memaddr + bytes_read, info); | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
131 | if (operand->flags & V850E_IMMEDIATE23) | |
132 | { | |
133 | int status = info->read_memory_func (memaddr + 2, buffer, 4, info); | |
134 | ||
135 | if (status == 0) | |
136 | { | |
137 | value = bfd_getl32 (buffer); | |
138 | ||
139 | value = (operand->extract) (value, invalid); | |
140 | ||
141 | return value; | |
142 | } | |
143 | ||
144 | if (!noerror) | |
145 | info->memory_error_func (status, memaddr + bytes_read, info); | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
150 | if (operand->flags & V850E_IMMEDIATE32) | |
151 | { | |
152 | int status = info->read_memory_func (memaddr + bytes_read, buffer, 4, info); | |
153 | ||
154 | if (status == 0) | |
155 | { | |
156 | bytes_read += 4; | |
157 | value = bfd_getl32 (buffer); | |
158 | ||
159 | return value; | |
160 | } | |
161 | ||
162 | if (!noerror) | |
163 | info->memory_error_func (status, memaddr + bytes_read, info); | |
164 | ||
165 | return 0; | |
166 | } | |
167 | ||
168 | if (operand->extract) | |
169 | value = (operand->extract) (insn, invalid); | |
170 | else | |
171 | { | |
172 | if (operand->bits == -1) | |
173 | value = (insn & operand->shift); | |
174 | else | |
175 | value = (insn >> operand->shift) & ((1 << operand->bits) - 1); | |
176 | ||
177 | if (operand->flags & V850_OPERAND_SIGNED) | |
178 | value = ((long)(value << (sizeof (long)*8 - operand->bits)) | |
179 | >> (sizeof (long)*8 - operand->bits)); | |
180 | } | |
181 | ||
182 | return value; | |
183 | } | |
184 | ||
185 | ||
186 | static int | |
187 | disassemble (bfd_vma memaddr, struct disassemble_info *info, int bytes_read, unsigned long insn) | |
188 | { | |
189 | struct v850_opcode *op = (struct v850_opcode *)v850_opcodes; | |
190 | const struct v850_operand *operand; | |
191 | int match = 0; | |
192 | int target_processor; | |
252b5132 RH |
193 | |
194 | switch (info->mach) | |
195 | { | |
196 | case 0: | |
197 | default: | |
198 | target_processor = PROCESSOR_V850; | |
199 | break; | |
200 | ||
201 | case bfd_mach_v850e: | |
202 | target_processor = PROCESSOR_V850E; | |
203 | break; | |
8ad30312 NC |
204 | |
205 | case bfd_mach_v850e1: | |
1cd986c5 NC |
206 | target_processor = PROCESSOR_V850E; |
207 | break; | |
208 | ||
209 | case bfd_mach_v850e2: | |
210 | target_processor = PROCESSOR_V850E2; | |
211 | break; | |
212 | ||
213 | case bfd_mach_v850e2v3: | |
214 | target_processor = PROCESSOR_V850E2V3; | |
8ad30312 | 215 | break; |
252b5132 | 216 | } |
47b0e7ad | 217 | |
1cd986c5 NC |
218 | /* If this is a two byte insn, then mask off the high bits. */ |
219 | if (bytes_read == 2) | |
220 | insn &= 0xffff; | |
221 | ||
252b5132 RH |
222 | /* Find the opcode. */ |
223 | while (op->name) | |
224 | { | |
225 | if ((op->mask & insn) == op->opcode | |
1cd986c5 NC |
226 | && (op->processors & target_processor) |
227 | && !(op->processors & PROCESSOR_OPTION_ALIAS)) | |
252b5132 | 228 | { |
1cd986c5 | 229 | /* Code check start. */ |
b34976b6 AM |
230 | const unsigned char *opindex_ptr; |
231 | unsigned int opnum; | |
232 | unsigned int memop; | |
252b5132 | 233 | |
1cd986c5 NC |
234 | for (opindex_ptr = op->operands, opnum = 1; |
235 | *opindex_ptr != 0; | |
236 | opindex_ptr++, opnum++) | |
237 | { | |
238 | int invalid = 0; | |
239 | long value; | |
240 | ||
241 | operand = &v850_operands[*opindex_ptr]; | |
242 | ||
243 | value = get_operand_value (operand, insn, bytes_read, memaddr, info, 1, &invalid); | |
244 | ||
245 | if (invalid) | |
246 | goto next_opcode; | |
247 | ||
248 | if ((operand->flags & V850_NOT_R0) && value == 0 && (op->memop) <=2) | |
249 | goto next_opcode; | |
250 | ||
251 | if ((operand->flags & V850_NOT_SA) && value == 0xd) | |
252 | goto next_opcode; | |
253 | ||
254 | if ((operand->flags & V850_NOT_IMM0) && value == 0) | |
255 | goto next_opcode; | |
256 | } | |
257 | ||
258 | /* Code check end. */ | |
259 | ||
252b5132 RH |
260 | match = 1; |
261 | (*info->fprintf_func) (info->stream, "%s\t", op->name); | |
1cd986c5 NC |
262 | #if 0 |
263 | fprintf (stderr, "match: insn: %lx, mask: %lx, opcode: %lx, name: %s\n", | |
264 | insn, op->mask, op->opcode, op->name ); | |
265 | #endif | |
252b5132 RH |
266 | |
267 | memop = op->memop; | |
268 | /* Now print the operands. | |
269 | ||
270 | MEMOP is the operand number at which a memory | |
271 | address specification starts, or zero if this | |
272 | instruction has no memory addresses. | |
273 | ||
274 | A memory address is always two arguments. | |
275 | ||
276 | This information allows us to determine when to | |
277 | insert commas into the output stream as well as | |
278 | when to insert disp[reg] expressions onto the | |
279 | output stream. */ | |
47b0e7ad | 280 | |
252b5132 RH |
281 | for (opindex_ptr = op->operands, opnum = 1; |
282 | *opindex_ptr != 0; | |
283 | opindex_ptr++, opnum++) | |
284 | { | |
7d063384 | 285 | bfd_boolean square = FALSE; |
b34976b6 AM |
286 | long value; |
287 | int flag; | |
1cd986c5 | 288 | char *prefix; |
47b0e7ad | 289 | |
252b5132 | 290 | operand = &v850_operands[*opindex_ptr]; |
47b0e7ad | 291 | |
1cd986c5 | 292 | value = get_operand_value (operand, insn, bytes_read, memaddr, info, 0, 0); |
252b5132 RH |
293 | |
294 | /* The first operand is always output without any | |
295 | special handling. | |
296 | ||
297 | For the following arguments: | |
298 | ||
299 | If memop && opnum == memop + 1, then we need '[' since | |
300 | we're about to output the register used in a memory | |
301 | reference. | |
302 | ||
303 | If memop && opnum == memop + 2, then we need ']' since | |
304 | we just finished the register in a memory reference. We | |
305 | also need a ',' before this operand. | |
306 | ||
307 | Else we just need a comma. | |
308 | ||
309 | We may need to output a trailing ']' if the last operand | |
47b0e7ad | 310 | in an instruction is the register for a memory address. |
252b5132 RH |
311 | |
312 | The exception (and there's always an exception) is the | |
313 | "jmp" insn which needs square brackets around it's only | |
314 | register argument. */ | |
1cd986c5 NC |
315 | prefix = ""; |
316 | if (operand->flags & V850_OPERAND_BANG) | |
317 | { | |
318 | prefix = "!"; | |
319 | } | |
320 | else if (operand->flags & V850_OPERAND_PERCENT) | |
321 | { | |
322 | prefix = "%"; | |
323 | } | |
252b5132 | 324 | |
1cd986c5 | 325 | if (opnum == 1 && opnum == memop) |
7d063384 NC |
326 | { |
327 | info->fprintf_func (info->stream, "%s[", prefix); | |
328 | square = TRUE; | |
329 | } | |
1cd986c5 NC |
330 | else if (opnum > 1 |
331 | && (v850_operands[*(opindex_ptr - 1)].flags & V850_OPERAND_DISP) != 0 | |
332 | && opnum == memop) | |
7d063384 NC |
333 | { |
334 | info->fprintf_func (info->stream, "%s[", prefix); | |
335 | square = TRUE; | |
336 | } | |
1cd986c5 NC |
337 | else if (opnum > 1) |
338 | info->fprintf_func (info->stream, ", %s", prefix); | |
339 | ||
340 | /* Extract the flags, ignoring ones which do not effect disassembly output. */ | |
341 | flag = operand->flags & (V850_OPERAND_REG | |
342 | | V850_REG_EVEN | |
343 | | V850_OPERAND_EP | |
344 | | V850_OPERAND_SRG | |
345 | | V850E_OPERAND_REG_LIST | |
346 | | V850_OPERAND_CC | |
347 | | V850_OPERAND_FLOAT_CC); | |
47b0e7ad | 348 | |
252b5132 RH |
349 | switch (flag) |
350 | { | |
1cd986c5 NC |
351 | case V850_OPERAND_REG: info->fprintf_func (info->stream, "%s", v850_reg_names[value]); break; |
352 | case (V850_OPERAND_REG|V850_REG_EVEN): info->fprintf_func (info->stream, "%s", v850_reg_names[value*2]); break; | |
353 | case V850_OPERAND_EP: info->fprintf_func (info->stream, "ep"); break; | |
354 | case V850_OPERAND_SRG: info->fprintf_func (info->stream, "%s", v850_sreg_names[value]); break; | |
47b0e7ad | 355 | |
1cd986c5 | 356 | case V850E_OPERAND_REG_LIST: |
252b5132 | 357 | { |
1cd986c5 NC |
358 | static int list12_regs[32] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
359 | 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 }; | |
b34976b6 AM |
360 | int *regs; |
361 | int i; | |
252b5132 | 362 | unsigned long int mask = 0; |
b34976b6 | 363 | int pc = 0; |
1cd986c5 | 364 | |
47b0e7ad | 365 | |
252b5132 RH |
366 | switch (operand->shift) |
367 | { | |
368 | case 0xffe00001: regs = list12_regs; break; | |
252b5132 RH |
369 | default: |
370 | /* xgettext:c-format */ | |
1cd986c5 | 371 | fprintf (stderr, _("unknown operand shift: %x\n"), operand->shift ); |
47b0e7ad | 372 | abort (); |
252b5132 RH |
373 | } |
374 | ||
375 | for (i = 0; i < 32; i++) | |
376 | { | |
377 | if (value & (1 << i)) | |
378 | { | |
379 | switch (regs[ i ]) | |
380 | { | |
381 | default: mask |= (1 << regs[ i ]); break; | |
382 | /* xgettext:c-format */ | |
1cd986c5 | 383 | case 0: fprintf (stderr, _("unknown reg: %d\n"), i ); abort (); |
b34976b6 | 384 | case -1: pc = 1; break; |
252b5132 RH |
385 | } |
386 | } | |
387 | } | |
388 | ||
389 | info->fprintf_func (info->stream, "{"); | |
47b0e7ad | 390 | |
1cd986c5 | 391 | if (mask || pc) |
252b5132 RH |
392 | { |
393 | if (mask) | |
394 | { | |
395 | unsigned int bit; | |
b34976b6 | 396 | int shown_one = 0; |
47b0e7ad | 397 | |
252b5132 RH |
398 | for (bit = 0; bit < 32; bit++) |
399 | if (mask & (1 << bit)) | |
400 | { | |
401 | unsigned long int first = bit; | |
402 | unsigned long int last; | |
403 | ||
404 | if (shown_one) | |
405 | info->fprintf_func (info->stream, ", "); | |
406 | else | |
b34976b6 | 407 | shown_one = 1; |
47b0e7ad | 408 | |
1cd986c5 | 409 | info->fprintf_func (info->stream, v850_reg_names[first]); |
47b0e7ad | 410 | |
252b5132 RH |
411 | for (bit++; bit < 32; bit++) |
412 | if ((mask & (1 << bit)) == 0) | |
413 | break; | |
414 | ||
415 | last = bit; | |
416 | ||
417 | if (last > first + 1) | |
1cd986c5 NC |
418 | { |
419 | info->fprintf_func (info->stream, " - %s", v850_reg_names[ last - 1 ]); | |
420 | } | |
252b5132 RH |
421 | } |
422 | } | |
47b0e7ad | 423 | |
252b5132 RH |
424 | if (pc) |
425 | info->fprintf_func (info->stream, "%sPC", mask ? ", " : ""); | |
252b5132 | 426 | } |
47b0e7ad | 427 | |
252b5132 RH |
428 | info->fprintf_func (info->stream, "}"); |
429 | } | |
252b5132 | 430 | break; |
47b0e7ad | 431 | |
1cd986c5 NC |
432 | case V850_OPERAND_CC: info->fprintf_func (info->stream, "%s", v850_cc_names[value]); break; |
433 | case V850_OPERAND_FLOAT_CC: info->fprintf_func (info->stream, "%s", v850_float_cc_names[value]); break; | |
434 | ||
435 | default: | |
436 | print_value (operand->flags, memaddr, info, value); | |
252b5132 | 437 | break; |
47b0e7ad | 438 | } |
252b5132 | 439 | |
7d063384 | 440 | if (square) |
252b5132 RH |
441 | (*info->fprintf_func) (info->stream, "]"); |
442 | } | |
443 | ||
252b5132 RH |
444 | /* All done. */ |
445 | break; | |
446 | } | |
1cd986c5 | 447 | next_opcode: |
252b5132 RH |
448 | op++; |
449 | } | |
450 | ||
1cd986c5 | 451 | return match; |
252b5132 RH |
452 | } |
453 | ||
47b0e7ad NC |
454 | int |
455 | print_insn_v850 (bfd_vma memaddr, struct disassemble_info * info) | |
252b5132 | 456 | { |
1cd986c5 NC |
457 | int status, status2, match; |
458 | bfd_byte buffer[8]; | |
459 | int length = 0, code_length = 0; | |
460 | unsigned long insn = 0, insn2 = 0; | |
461 | int target_processor; | |
462 | ||
463 | switch (info->mach) | |
464 | { | |
465 | case 0: | |
466 | default: | |
467 | target_processor = PROCESSOR_V850; | |
468 | break; | |
469 | ||
470 | case bfd_mach_v850e: | |
471 | target_processor = PROCESSOR_V850E; | |
472 | break; | |
473 | ||
474 | case bfd_mach_v850e1: | |
475 | target_processor = PROCESSOR_V850E; | |
476 | break; | |
477 | ||
478 | case bfd_mach_v850e2: | |
479 | target_processor = PROCESSOR_V850E2; | |
480 | break; | |
481 | ||
482 | case bfd_mach_v850e2v3: | |
483 | target_processor = PROCESSOR_V850E2V3; | |
484 | break; | |
485 | } | |
252b5132 | 486 | |
252b5132 | 487 | status = info->read_memory_func (memaddr, buffer, 2, info); |
1cd986c5 NC |
488 | |
489 | if (status) | |
490 | { | |
491 | info->memory_error_func (status, memaddr, info); | |
492 | return -1; | |
493 | } | |
494 | ||
495 | insn = bfd_getl16 (buffer); | |
496 | ||
497 | status2 = info->read_memory_func (memaddr+2, buffer, 2 , info); | |
498 | ||
499 | if (!status2) | |
252b5132 | 500 | { |
1cd986c5 NC |
501 | insn2 = bfd_getl16 (buffer); |
502 | /* fprintf (stderr, "insn2 0x%08lx\n", insn2); */ | |
503 | } | |
47b0e7ad | 504 | |
1cd986c5 NC |
505 | /* Special case. */ |
506 | if (length == 0 | |
507 | && (target_processor == PROCESSOR_V850E2 | |
508 | || target_processor == PROCESSOR_V850E2V3)) | |
509 | { | |
510 | if ((insn & 0xffff) == 0x02e0 /* jr 32bit */ | |
511 | && !status2 && (insn2 & 0x1) == 0) | |
512 | { | |
513 | length = 2; | |
514 | code_length = 6; | |
515 | } | |
516 | else if ((insn & 0xffe0) == 0x02e0 /* jarl 32bit */ | |
517 | && !status2 && (insn2 & 0x1) == 0) | |
518 | { | |
519 | length = 2; | |
520 | code_length = 6; | |
521 | } | |
522 | else if ((insn & 0xffe0) == 0x06e0 /* jmp 32bit */ | |
523 | && !status2 && (insn2 & 0x1) == 0) | |
252b5132 | 524 | { |
1cd986c5 NC |
525 | length = 2; |
526 | code_length = 6; | |
527 | } | |
528 | } | |
252b5132 | 529 | |
1cd986c5 NC |
530 | if (length == 0 |
531 | && target_processor == PROCESSOR_V850E2V3) | |
532 | { | |
533 | if (((insn & 0xffe0) == 0x0780 /* ld.b 23bit */ | |
534 | && !status2 && (insn2 & 0x000f) == 0x0005) | |
535 | || ((insn & 0xffe0) == 0x07a0 /* ld.bu 23bit */ | |
536 | && !status2 && (insn2 & 0x000f) == 0x0005) | |
537 | || ((insn & 0xffe0) == 0x0780 /* ld.h 23bit */ | |
538 | && !status2 && (insn2 & 0x000f) == 0x0007) | |
539 | || ((insn & 0xffe0) == 0x07a0 /* ld.hu 23bit */ | |
540 | && !status2 && (insn2 & 0x000f) == 0x0007) | |
541 | || ((insn & 0xffe0) == 0x0780 /* ld.w 23bit */ | |
542 | && !status2 && (insn2 & 0x000f) == 0x0009)) | |
543 | { | |
544 | length = 4; | |
545 | code_length = 6; | |
546 | } | |
547 | else if (((insn & 0xffe0) == 0x0780 /* st.b 23bit */ | |
548 | && !status2 && (insn2 & 0x000f) == 0x000d) | |
549 | || ((insn & 0xffe0) == 0x07a0 /* st.h 23bit */ | |
550 | && !status2 && (insn2 & 0x000f) == 0x000d) | |
551 | || ((insn & 0xffe0) == 0x0780 /* st.w 23bit */ | |
552 | && !status2 && (insn2 & 0x000f) == 0x000f)) | |
553 | { | |
554 | length = 4; | |
555 | code_length = 6; | |
252b5132 RH |
556 | } |
557 | } | |
47b0e7ad | 558 | |
1cd986c5 NC |
559 | if (length == 0 |
560 | && target_processor != PROCESSOR_V850) | |
252b5132 | 561 | { |
1cd986c5 NC |
562 | if ((insn & 0xffe0) == 0x0620) /* 32 bit MOV */ |
563 | { | |
564 | length = 2; | |
565 | code_length = 6; | |
566 | } | |
567 | else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16<<16 */ | |
568 | && !status2 && (insn2 & 0x001f) == 0x0013) | |
569 | { | |
570 | length = 4; | |
571 | code_length = 6; | |
572 | } | |
573 | else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16 */ | |
574 | && !status2 && (insn2 & 0x001f) == 0x000b) | |
575 | { | |
576 | length = 4; | |
577 | code_length = 6; | |
578 | } | |
579 | else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm32 */ | |
580 | && !status2 && (insn2 & 0x001f) == 0x001b) | |
581 | { | |
582 | length = 4; | |
583 | code_length = 8; | |
584 | } | |
585 | } | |
586 | ||
587 | if (length == 4 | |
588 | || (length == 0 | |
589 | && (insn & 0x0600) == 0x0600)) | |
590 | { | |
591 | /* This is a 4 byte insn. */ | |
592 | status = info->read_memory_func (memaddr, buffer, 4, info); | |
593 | if (!status) | |
594 | { | |
595 | insn = bfd_getl32 (buffer); | |
596 | ||
597 | if (!length) | |
598 | length = code_length = 4; | |
599 | } | |
600 | } | |
601 | ||
602 | if (code_length > length) | |
603 | { | |
604 | status = info->read_memory_func (memaddr + length, buffer, code_length - length, info); | |
605 | if (status) | |
606 | length = 0; | |
607 | } | |
608 | ||
609 | if (length == 0 && !status) | |
610 | length = code_length = 2; | |
611 | ||
612 | if (length == 2) | |
613 | insn &= 0xffff; | |
614 | ||
615 | match = disassemble (memaddr, info, length, insn); | |
616 | ||
617 | if (!match) | |
618 | { | |
619 | int l = 0; | |
620 | ||
621 | status = info->read_memory_func (memaddr, buffer, code_length, info); | |
622 | ||
623 | while (l < code_length) | |
624 | { | |
625 | if (code_length - l == 2) | |
626 | { | |
627 | insn = bfd_getl16 (buffer + l) & 0xffff; | |
628 | info->fprintf_func (info->stream, ".short\t0x%04lx", insn); | |
629 | l += 2; | |
630 | } | |
631 | else | |
632 | { | |
633 | insn = bfd_getl32 (buffer + l); | |
634 | info->fprintf_func (info->stream, ".long\t0x%08lx", insn); | |
635 | l += 4; | |
636 | } | |
637 | } | |
252b5132 RH |
638 | } |
639 | ||
1cd986c5 | 640 | return code_length; |
252b5132 | 641 | } |