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