Commit | Line | Data |
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4162bb66 | 1 | /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */ |
87e6d782 NC |
2 | /* Disassembler interface for targets using CGEN. -*- C -*- |
3 | CGEN: Cpu tools GENerator | |
4 | ||
47b0e7ad NC |
5 | THIS FILE IS MACHINE GENERATED WITH CGEN. |
6 | - the resultant file is machine generated, cgen-dis.in isn't | |
87e6d782 | 7 | |
219d1afa | 8 | Copyright (C) 1996-2018 Free Software Foundation, Inc. |
87e6d782 | 9 | |
9b201bb5 | 10 | This file is part of libopcodes. |
87e6d782 | 11 | |
9b201bb5 | 12 | This library is free software; you can redistribute it and/or modify |
47b0e7ad | 13 | it under the terms of the GNU General Public License as published by |
9b201bb5 | 14 | the Free Software Foundation; either version 3, or (at your option) |
47b0e7ad | 15 | any later version. |
87e6d782 | 16 | |
9b201bb5 NC |
17 | It is distributed in the hope that it will be useful, but WITHOUT |
18 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
19 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
20 | License for more details. | |
87e6d782 | 21 | |
47b0e7ad NC |
22 | You should have received a copy of the GNU General Public License |
23 | along with this program; if not, write to the Free Software Foundation, Inc., | |
24 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
87e6d782 NC |
25 | |
26 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. | |
27 | Keep that in mind. */ | |
28 | ||
29 | #include "sysdep.h" | |
30 | #include <stdio.h> | |
31 | #include "ansidecl.h" | |
88c1242d | 32 | #include "disassemble.h" |
87e6d782 NC |
33 | #include "bfd.h" |
34 | #include "symcat.h" | |
98f70fc4 | 35 | #include "libiberty.h" |
73589c9d CS |
36 | #include "or1k-desc.h" |
37 | #include "or1k-opc.h" | |
87e6d782 NC |
38 | #include "opintl.h" |
39 | ||
40 | /* Default text to print if an instruction isn't recognized. */ | |
41 | #define UNKNOWN_INSN_MSG _("*unknown*") | |
42 | ||
43 | static void print_normal | |
ffead7ae | 44 | (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int); |
87e6d782 | 45 | static void print_address |
bf143b25 | 46 | (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED; |
87e6d782 | 47 | static void print_keyword |
bf143b25 | 48 | (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED; |
87e6d782 | 49 | static void print_insn_normal |
ffead7ae | 50 | (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int); |
0e2ee3ca | 51 | static int print_insn |
33b71eeb | 52 | (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned); |
87e6d782 | 53 | static int default_print_insn |
bf143b25 | 54 | (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED; |
fc05c67f | 55 | static int read_insn |
33b71eeb | 56 | (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *, |
ffead7ae | 57 | unsigned long *); |
87e6d782 | 58 | \f |
47b0e7ad | 59 | /* -- disassembler routines inserted here. */ |
87e6d782 NC |
60 | |
61 | ||
73589c9d | 62 | void or1k_cgen_print_operand |
47b0e7ad | 63 | (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int); |
0e2ee3ca | 64 | |
87e6d782 NC |
65 | /* Main entry point for printing operands. |
66 | XINFO is a `void *' and not a `disassemble_info *' to not put a requirement | |
67 | of dis-asm.h on cgen.h. | |
68 | ||
69 | This function is basically just a big switch statement. Earlier versions | |
70 | used tables to look up the function to use, but | |
71 | - if the table contains both assembler and disassembler functions then | |
72 | the disassembler contains much of the assembler and vice-versa, | |
73 | - there's a lot of inlining possibilities as things grow, | |
74 | - using a switch statement avoids the function call overhead. | |
75 | ||
76 | This function could be moved into `print_insn_normal', but keeping it | |
77 | separate makes clear the interface between `print_insn_normal' and each of | |
9a2e995d | 78 | the handlers. */ |
87e6d782 NC |
79 | |
80 | void | |
73589c9d | 81 | or1k_cgen_print_operand (CGEN_CPU_DESC cd, |
47b0e7ad NC |
82 | int opindex, |
83 | void * xinfo, | |
84 | CGEN_FIELDS *fields, | |
85 | void const *attrs ATTRIBUTE_UNUSED, | |
86 | bfd_vma pc, | |
87 | int length) | |
87e6d782 | 88 | { |
47b0e7ad | 89 | disassemble_info *info = (disassemble_info *) xinfo; |
87e6d782 NC |
90 | |
91 | switch (opindex) | |
92 | { | |
73589c9d | 93 | case OR1K_OPERAND_DISP26 : |
87e6d782 NC |
94 | print_address (cd, info, fields->f_disp26, 0|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length); |
95 | break; | |
73589c9d CS |
96 | case OR1K_OPERAND_RA : |
97 | print_keyword (cd, info, & or1k_cgen_opval_h_gpr, fields->f_r2, 0); | |
98 | break; | |
99 | case OR1K_OPERAND_RADF : | |
100 | print_keyword (cd, info, & or1k_cgen_opval_h_fdr, fields->f_r1, 0); | |
87e6d782 | 101 | break; |
73589c9d CS |
102 | case OR1K_OPERAND_RASF : |
103 | print_keyword (cd, info, & or1k_cgen_opval_h_fsr, fields->f_r2, 0); | |
87e6d782 | 104 | break; |
73589c9d CS |
105 | case OR1K_OPERAND_RB : |
106 | print_keyword (cd, info, & or1k_cgen_opval_h_gpr, fields->f_r3, 0); | |
87e6d782 | 107 | break; |
73589c9d CS |
108 | case OR1K_OPERAND_RBDF : |
109 | print_keyword (cd, info, & or1k_cgen_opval_h_fdr, fields->f_r1, 0); | |
87e6d782 | 110 | break; |
73589c9d CS |
111 | case OR1K_OPERAND_RBSF : |
112 | print_keyword (cd, info, & or1k_cgen_opval_h_fsr, fields->f_r3, 0); | |
87e6d782 | 113 | break; |
73589c9d CS |
114 | case OR1K_OPERAND_RD : |
115 | print_keyword (cd, info, & or1k_cgen_opval_h_gpr, fields->f_r1, 0); | |
87e6d782 | 116 | break; |
73589c9d CS |
117 | case OR1K_OPERAND_RDDF : |
118 | print_keyword (cd, info, & or1k_cgen_opval_h_fdr, fields->f_r1, 0); | |
87e6d782 | 119 | break; |
73589c9d CS |
120 | case OR1K_OPERAND_RDSF : |
121 | print_keyword (cd, info, & or1k_cgen_opval_h_fsr, fields->f_r1, 0); | |
87e6d782 | 122 | break; |
73589c9d CS |
123 | case OR1K_OPERAND_SIMM16 : |
124 | print_normal (cd, info, fields->f_simm16, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_SIGN_OPT), pc, length); | |
125 | break; | |
126 | case OR1K_OPERAND_SIMM16_SPLIT : | |
127 | print_normal (cd, info, fields->f_simm16_split, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_SIGN_OPT)|(1<<CGEN_OPERAND_VIRTUAL), pc, length); | |
87e6d782 | 128 | break; |
73589c9d | 129 | case OR1K_OPERAND_UIMM16 : |
87e6d782 NC |
130 | print_normal (cd, info, fields->f_uimm16, 0, pc, length); |
131 | break; | |
73589c9d CS |
132 | case OR1K_OPERAND_UIMM16_SPLIT : |
133 | print_normal (cd, info, fields->f_uimm16_split, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length); | |
134 | break; | |
135 | case OR1K_OPERAND_UIMM6 : | |
136 | print_normal (cd, info, fields->f_uimm6, 0, pc, length); | |
87e6d782 NC |
137 | break; |
138 | ||
139 | default : | |
140 | /* xgettext:c-format */ | |
a6743a54 AM |
141 | opcodes_error_handler |
142 | (_("internal error: unrecognized field %d while printing insn"), | |
143 | opindex); | |
144 | abort (); | |
87e6d782 NC |
145 | } |
146 | } | |
147 | ||
43e65147 | 148 | cgen_print_fn * const or1k_cgen_print_handlers[] = |
87e6d782 NC |
149 | { |
150 | print_insn_normal, | |
151 | }; | |
152 | ||
153 | ||
154 | void | |
73589c9d | 155 | or1k_cgen_init_dis (CGEN_CPU_DESC cd) |
87e6d782 | 156 | { |
73589c9d CS |
157 | or1k_cgen_init_opcode_table (cd); |
158 | or1k_cgen_init_ibld_table (cd); | |
159 | cd->print_handlers = & or1k_cgen_print_handlers[0]; | |
160 | cd->print_operand = or1k_cgen_print_operand; | |
87e6d782 NC |
161 | } |
162 | ||
163 | \f | |
164 | /* Default print handler. */ | |
165 | ||
166 | static void | |
ffead7ae MM |
167 | print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
168 | void *dis_info, | |
169 | long value, | |
170 | unsigned int attrs, | |
171 | bfd_vma pc ATTRIBUTE_UNUSED, | |
172 | int length ATTRIBUTE_UNUSED) | |
87e6d782 NC |
173 | { |
174 | disassemble_info *info = (disassemble_info *) dis_info; | |
175 | ||
87e6d782 NC |
176 | /* Print the operand as directed by the attributes. */ |
177 | if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY)) | |
178 | ; /* nothing to do */ | |
179 | else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED)) | |
180 | (*info->fprintf_func) (info->stream, "%ld", value); | |
181 | else | |
182 | (*info->fprintf_func) (info->stream, "0x%lx", value); | |
183 | } | |
184 | ||
185 | /* Default address handler. */ | |
186 | ||
187 | static void | |
ffead7ae MM |
188 | print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
189 | void *dis_info, | |
190 | bfd_vma value, | |
191 | unsigned int attrs, | |
192 | bfd_vma pc ATTRIBUTE_UNUSED, | |
193 | int length ATTRIBUTE_UNUSED) | |
87e6d782 NC |
194 | { |
195 | disassemble_info *info = (disassemble_info *) dis_info; | |
196 | ||
87e6d782 NC |
197 | /* Print the operand as directed by the attributes. */ |
198 | if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY)) | |
47b0e7ad | 199 | ; /* Nothing to do. */ |
87e6d782 NC |
200 | else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR)) |
201 | (*info->print_address_func) (value, info); | |
202 | else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR)) | |
203 | (*info->print_address_func) (value, info); | |
204 | else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED)) | |
205 | (*info->fprintf_func) (info->stream, "%ld", (long) value); | |
206 | else | |
207 | (*info->fprintf_func) (info->stream, "0x%lx", (long) value); | |
208 | } | |
209 | ||
210 | /* Keyword print handler. */ | |
211 | ||
212 | static void | |
ffead7ae MM |
213 | print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
214 | void *dis_info, | |
215 | CGEN_KEYWORD *keyword_table, | |
216 | long value, | |
217 | unsigned int attrs ATTRIBUTE_UNUSED) | |
87e6d782 NC |
218 | { |
219 | disassemble_info *info = (disassemble_info *) dis_info; | |
220 | const CGEN_KEYWORD_ENTRY *ke; | |
221 | ||
222 | ke = cgen_keyword_lookup_value (keyword_table, value); | |
223 | if (ke != NULL) | |
224 | (*info->fprintf_func) (info->stream, "%s", ke->name); | |
225 | else | |
226 | (*info->fprintf_func) (info->stream, "???"); | |
227 | } | |
228 | \f | |
229 | /* Default insn printer. | |
230 | ||
ffead7ae | 231 | DIS_INFO is defined as `void *' so the disassembler needn't know anything |
87e6d782 NC |
232 | about disassemble_info. */ |
233 | ||
234 | static void | |
ffead7ae MM |
235 | print_insn_normal (CGEN_CPU_DESC cd, |
236 | void *dis_info, | |
237 | const CGEN_INSN *insn, | |
238 | CGEN_FIELDS *fields, | |
239 | bfd_vma pc, | |
240 | int length) | |
87e6d782 NC |
241 | { |
242 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
243 | disassemble_info *info = (disassemble_info *) dis_info; | |
244 | const CGEN_SYNTAX_CHAR_TYPE *syn; | |
245 | ||
246 | CGEN_INIT_PRINT (cd); | |
247 | ||
248 | for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn) | |
249 | { | |
250 | if (CGEN_SYNTAX_MNEMONIC_P (*syn)) | |
251 | { | |
252 | (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn)); | |
253 | continue; | |
254 | } | |
255 | if (CGEN_SYNTAX_CHAR_P (*syn)) | |
256 | { | |
257 | (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn)); | |
258 | continue; | |
259 | } | |
260 | ||
261 | /* We have an operand. */ | |
73589c9d | 262 | or1k_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info, |
87e6d782 NC |
263 | fields, CGEN_INSN_ATTRS (insn), pc, length); |
264 | } | |
265 | } | |
266 | \f | |
267 | /* Subroutine of print_insn. Reads an insn into the given buffers and updates | |
268 | the extract info. | |
269 | Returns 0 if all is well, non-zero otherwise. */ | |
0e2ee3ca | 270 | |
87e6d782 | 271 | static int |
ffead7ae MM |
272 | read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
273 | bfd_vma pc, | |
274 | disassemble_info *info, | |
33b71eeb | 275 | bfd_byte *buf, |
ffead7ae MM |
276 | int buflen, |
277 | CGEN_EXTRACT_INFO *ex_info, | |
278 | unsigned long *insn_value) | |
87e6d782 NC |
279 | { |
280 | int status = (*info->read_memory_func) (pc, buf, buflen, info); | |
47b0e7ad | 281 | |
87e6d782 NC |
282 | if (status != 0) |
283 | { | |
284 | (*info->memory_error_func) (status, pc, info); | |
285 | return -1; | |
286 | } | |
287 | ||
288 | ex_info->dis_info = info; | |
289 | ex_info->valid = (1 << buflen) - 1; | |
290 | ex_info->insn_bytes = buf; | |
291 | ||
292 | *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | /* Utility to print an insn. | |
297 | BUF is the base part of the insn, target byte order, BUFLEN bytes long. | |
298 | The result is the size of the insn in bytes or zero for an unknown insn | |
299 | or -1 if an error occurs fetching data (memory_error_func will have | |
300 | been called). */ | |
301 | ||
302 | static int | |
ffead7ae MM |
303 | print_insn (CGEN_CPU_DESC cd, |
304 | bfd_vma pc, | |
305 | disassemble_info *info, | |
33b71eeb | 306 | bfd_byte *buf, |
ffead7ae | 307 | unsigned int buflen) |
87e6d782 | 308 | { |
fc7bc883 | 309 | CGEN_INSN_INT insn_value; |
87e6d782 NC |
310 | const CGEN_INSN_LIST *insn_list; |
311 | CGEN_EXTRACT_INFO ex_info; | |
3c3bdf30 | 312 | int basesize; |
87e6d782 | 313 | |
fc7bc883 | 314 | /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */ |
3c3bdf30 NC |
315 | basesize = cd->base_insn_bitsize < buflen * 8 ? |
316 | cd->base_insn_bitsize : buflen * 8; | |
317 | insn_value = cgen_get_insn_value (cd, buf, basesize); | |
318 | ||
fc7bc883 RH |
319 | |
320 | /* Fill in ex_info fields like read_insn would. Don't actually call | |
321 | read_insn, since the incoming buffer is already read (and possibly | |
322 | modified a la m32r). */ | |
323 | ex_info.valid = (1 << buflen) - 1; | |
324 | ex_info.dis_info = info; | |
325 | ex_info.insn_bytes = buf; | |
87e6d782 NC |
326 | |
327 | /* The instructions are stored in hash lists. | |
328 | Pick the first one and keep trying until we find the right one. */ | |
329 | ||
33b71eeb | 330 | insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value); |
87e6d782 NC |
331 | while (insn_list != NULL) |
332 | { | |
333 | const CGEN_INSN *insn = insn_list->insn; | |
334 | CGEN_FIELDS fields; | |
335 | int length; | |
fc7bc883 | 336 | unsigned long insn_value_cropped; |
87e6d782 | 337 | |
43e65147 | 338 | #ifdef CGEN_VALIDATE_INSN_SUPPORTED |
0e2ee3ca | 339 | /* Not needed as insn shouldn't be in hash lists if not supported. */ |
87e6d782 | 340 | /* Supported by this cpu? */ |
73589c9d | 341 | if (! or1k_cgen_insn_supported (cd, insn)) |
87e6d782 NC |
342 | { |
343 | insn_list = CGEN_DIS_NEXT_INSN (insn_list); | |
344 | continue; | |
345 | } | |
346 | #endif | |
347 | ||
348 | /* Basic bit mask must be correct. */ | |
349 | /* ??? May wish to allow target to defer this check until the extract | |
350 | handler. */ | |
fc7bc883 RH |
351 | |
352 | /* Base size may exceed this instruction's size. Extract the | |
353 | relevant part from the buffer. */ | |
0e2ee3ca NC |
354 | if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen && |
355 | (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long)) | |
43e65147 | 356 | insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn), |
fc7bc883 RH |
357 | info->endian == BFD_ENDIAN_BIG); |
358 | else | |
359 | insn_value_cropped = insn_value; | |
360 | ||
361 | if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn)) | |
87e6d782 NC |
362 | == CGEN_INSN_BASE_VALUE (insn)) |
363 | { | |
364 | /* Printing is handled in two passes. The first pass parses the | |
365 | machine insn and extracts the fields. The second pass prints | |
366 | them. */ | |
367 | ||
368 | /* Make sure the entire insn is loaded into insn_value, if it | |
369 | can fit. */ | |
0e2ee3ca NC |
370 | if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) && |
371 | (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long)) | |
87e6d782 NC |
372 | { |
373 | unsigned long full_insn_value; | |
374 | int rc = read_insn (cd, pc, info, buf, | |
375 | CGEN_INSN_BITSIZE (insn) / 8, | |
376 | & ex_info, & full_insn_value); | |
377 | if (rc != 0) | |
378 | return rc; | |
379 | length = CGEN_EXTRACT_FN (cd, insn) | |
380 | (cd, insn, &ex_info, full_insn_value, &fields, pc); | |
381 | } | |
382 | else | |
383 | length = CGEN_EXTRACT_FN (cd, insn) | |
fc7bc883 | 384 | (cd, insn, &ex_info, insn_value_cropped, &fields, pc); |
87e6d782 | 385 | |
47b0e7ad | 386 | /* Length < 0 -> error. */ |
87e6d782 NC |
387 | if (length < 0) |
388 | return length; | |
389 | if (length > 0) | |
390 | { | |
391 | CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length); | |
47b0e7ad | 392 | /* Length is in bits, result is in bytes. */ |
87e6d782 NC |
393 | return length / 8; |
394 | } | |
395 | } | |
396 | ||
397 | insn_list = CGEN_DIS_NEXT_INSN (insn_list); | |
398 | } | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | /* Default value for CGEN_PRINT_INSN. | |
404 | The result is the size of the insn in bytes or zero for an unknown insn | |
405 | or -1 if an error occured fetching bytes. */ | |
406 | ||
407 | #ifndef CGEN_PRINT_INSN | |
408 | #define CGEN_PRINT_INSN default_print_insn | |
409 | #endif | |
410 | ||
411 | static int | |
ffead7ae | 412 | default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info) |
87e6d782 | 413 | { |
33b71eeb | 414 | bfd_byte buf[CGEN_MAX_INSN_SIZE]; |
fc7bc883 | 415 | int buflen; |
87e6d782 NC |
416 | int status; |
417 | ||
fc7bc883 RH |
418 | /* Attempt to read the base part of the insn. */ |
419 | buflen = cd->base_insn_bitsize / 8; | |
420 | status = (*info->read_memory_func) (pc, buf, buflen, info); | |
421 | ||
422 | /* Try again with the minimum part, if min < base. */ | |
423 | if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize)) | |
424 | { | |
425 | buflen = cd->min_insn_bitsize / 8; | |
426 | status = (*info->read_memory_func) (pc, buf, buflen, info); | |
427 | } | |
87e6d782 | 428 | |
87e6d782 NC |
429 | if (status != 0) |
430 | { | |
431 | (*info->memory_error_func) (status, pc, info); | |
432 | return -1; | |
433 | } | |
434 | ||
fc7bc883 | 435 | return print_insn (cd, pc, info, buf, buflen); |
87e6d782 NC |
436 | } |
437 | ||
438 | /* Main entry point. | |
439 | Print one instruction from PC on INFO->STREAM. | |
440 | Return the size of the instruction (in bytes). */ | |
441 | ||
47b0e7ad NC |
442 | typedef struct cpu_desc_list |
443 | { | |
a978a3e5 | 444 | struct cpu_desc_list *next; |
fb53f5a8 | 445 | CGEN_BITSET *isa; |
a978a3e5 NC |
446 | int mach; |
447 | int endian; | |
448 | CGEN_CPU_DESC cd; | |
449 | } cpu_desc_list; | |
450 | ||
87e6d782 | 451 | int |
73589c9d | 452 | print_insn_or1k (bfd_vma pc, disassemble_info *info) |
87e6d782 | 453 | { |
a978a3e5 NC |
454 | static cpu_desc_list *cd_list = 0; |
455 | cpu_desc_list *cl = 0; | |
87e6d782 | 456 | static CGEN_CPU_DESC cd = 0; |
fb53f5a8 | 457 | static CGEN_BITSET *prev_isa; |
87e6d782 NC |
458 | static int prev_mach; |
459 | static int prev_endian; | |
460 | int length; | |
fb53f5a8 DB |
461 | CGEN_BITSET *isa; |
462 | int mach; | |
87e6d782 NC |
463 | int endian = (info->endian == BFD_ENDIAN_BIG |
464 | ? CGEN_ENDIAN_BIG | |
465 | : CGEN_ENDIAN_LITTLE); | |
466 | enum bfd_architecture arch; | |
467 | ||
468 | /* ??? gdb will set mach but leave the architecture as "unknown" */ | |
469 | #ifndef CGEN_BFD_ARCH | |
73589c9d | 470 | #define CGEN_BFD_ARCH bfd_arch_or1k |
87e6d782 NC |
471 | #endif |
472 | arch = info->arch; | |
473 | if (arch == bfd_arch_unknown) | |
474 | arch = CGEN_BFD_ARCH; | |
43e65147 | 475 | |
87e6d782 NC |
476 | /* There's no standard way to compute the machine or isa number |
477 | so we leave it to the target. */ | |
478 | #ifdef CGEN_COMPUTE_MACH | |
479 | mach = CGEN_COMPUTE_MACH (info); | |
480 | #else | |
481 | mach = info->mach; | |
482 | #endif | |
483 | ||
484 | #ifdef CGEN_COMPUTE_ISA | |
fb53f5a8 DB |
485 | { |
486 | static CGEN_BITSET *permanent_isa; | |
487 | ||
488 | if (!permanent_isa) | |
489 | permanent_isa = cgen_bitset_create (MAX_ISAS); | |
490 | isa = permanent_isa; | |
491 | cgen_bitset_clear (isa); | |
492 | cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info)); | |
493 | } | |
87e6d782 | 494 | #else |
a978a3e5 | 495 | isa = info->insn_sets; |
87e6d782 NC |
496 | #endif |
497 | ||
a978a3e5 | 498 | /* If we've switched cpu's, try to find a handle we've used before */ |
87e6d782 | 499 | if (cd |
fb53f5a8 | 500 | && (cgen_bitset_compare (isa, prev_isa) != 0 |
87e6d782 NC |
501 | || mach != prev_mach |
502 | || endian != prev_endian)) | |
503 | { | |
87e6d782 | 504 | cd = 0; |
a978a3e5 NC |
505 | for (cl = cd_list; cl; cl = cl->next) |
506 | { | |
fb53f5a8 | 507 | if (cgen_bitset_compare (cl->isa, isa) == 0 && |
a978a3e5 NC |
508 | cl->mach == mach && |
509 | cl->endian == endian) | |
510 | { | |
511 | cd = cl->cd; | |
fb53f5a8 | 512 | prev_isa = cd->isas; |
a978a3e5 NC |
513 | break; |
514 | } | |
515 | } | |
43e65147 | 516 | } |
87e6d782 NC |
517 | |
518 | /* If we haven't initialized yet, initialize the opcode table. */ | |
519 | if (! cd) | |
520 | { | |
521 | const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach); | |
522 | const char *mach_name; | |
523 | ||
524 | if (!arch_type) | |
525 | abort (); | |
526 | mach_name = arch_type->printable_name; | |
527 | ||
fb53f5a8 | 528 | prev_isa = cgen_bitset_copy (isa); |
87e6d782 NC |
529 | prev_mach = mach; |
530 | prev_endian = endian; | |
73589c9d | 531 | cd = or1k_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa, |
87e6d782 NC |
532 | CGEN_CPU_OPEN_BFDMACH, mach_name, |
533 | CGEN_CPU_OPEN_ENDIAN, prev_endian, | |
534 | CGEN_CPU_OPEN_END); | |
535 | if (!cd) | |
536 | abort (); | |
a978a3e5 | 537 | |
47b0e7ad | 538 | /* Save this away for future reference. */ |
a978a3e5 NC |
539 | cl = xmalloc (sizeof (struct cpu_desc_list)); |
540 | cl->cd = cd; | |
fb53f5a8 | 541 | cl->isa = prev_isa; |
a978a3e5 NC |
542 | cl->mach = mach; |
543 | cl->endian = endian; | |
544 | cl->next = cd_list; | |
545 | cd_list = cl; | |
546 | ||
73589c9d | 547 | or1k_cgen_init_dis (cd); |
87e6d782 NC |
548 | } |
549 | ||
550 | /* We try to have as much common code as possible. | |
551 | But at this point some targets need to take over. */ | |
552 | /* ??? Some targets may need a hook elsewhere. Try to avoid this, | |
553 | but if not possible try to move this hook elsewhere rather than | |
554 | have two hooks. */ | |
555 | length = CGEN_PRINT_INSN (cd, pc, info); | |
556 | if (length > 0) | |
557 | return length; | |
558 | if (length < 0) | |
559 | return -1; | |
560 | ||
561 | (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG); | |
562 | return cd->default_insn_bitsize / 8; | |
563 | } |