Commit | Line | Data |
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6c95a37f | 1 | /* Disassembler code for CRIS. |
9b201bb5 NC |
2 | Copyright 2000, 2001, 2002, 2004, 2005, 2006, 2007 |
3 | Free Software Foundation, Inc. | |
6c95a37f HPN |
4 | Contributed by Axis Communications AB, Lund, Sweden. |
5 | Written by Hans-Peter Nilsson. | |
6 | ||
9b201bb5 | 7 | This file is part of the GNU opcodes library. |
6c95a37f | 8 | |
9b201bb5 NC |
9 | This library is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3, or (at your option) | |
12 | any later version. | |
6c95a37f | 13 | |
9b201bb5 NC |
14 | It is distributed in the hope that it will be useful, but WITHOUT |
15 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
16 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
17 | License for more details. | |
6c95a37f | 18 | |
47b0e7ad NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
22 | MA 02110-1301, USA. */ | |
6c95a37f HPN |
23 | |
24 | #include "dis-asm.h" | |
25 | #include "sysdep.h" | |
26 | #include "opcode/cris.h" | |
27 | #include "libiberty.h" | |
28 | \f | |
6c95a37f HPN |
29 | /* No instruction will be disassembled longer than this. In theory, and |
30 | in silicon, address prefixes can be cascaded. In practice, cascading | |
31 | is not used by GCC, and not supported by the assembler. */ | |
32 | #ifndef MAX_BYTES_PER_CRIS_INSN | |
33 | #define MAX_BYTES_PER_CRIS_INSN 8 | |
34 | #endif | |
35 | ||
36 | /* Whether or not to decode prefixes, folding it into the following | |
37 | instruction. FIXME: Make this optional later. */ | |
38 | #ifndef PARSE_PREFIX | |
39 | #define PARSE_PREFIX 1 | |
40 | #endif | |
41 | ||
78966507 HPN |
42 | /* Sometimes we prefix all registers with this character. */ |
43 | #define REGISTER_PREFIX_CHAR '$' | |
44 | ||
6c95a37f HPN |
45 | /* Whether or not to trace the following sequence: |
46 | sub* X,r%d | |
47 | bound* Y,r%d | |
48 | adds.w [pc+r%d.w],pc | |
49 | ||
50 | This is the assembly form of a switch-statement in C. | |
51 | The "sub is optional. If there is none, then X will be zero. | |
52 | X is the value of the first case, | |
53 | Y is the number of cases (including default). | |
54 | ||
55 | This results in case offsets printed on the form: | |
56 | case N: -> case_address | |
57 | where N is an estimation on the corresponding 'case' operand in C, | |
58 | and case_address is where execution of that case continues after the | |
59 | sequence presented above. | |
60 | ||
61 | The old style of output was to print the offsets as instructions, | |
62 | which made it hard to follow "case"-constructs in the disassembly, | |
63 | and caused a lot of annoying warnings about undefined instructions. | |
64 | ||
65 | FIXME: Make this optional later. */ | |
66 | #ifndef TRACE_CASE | |
bd21e58e | 67 | #define TRACE_CASE (disdata->trace_case) |
6c95a37f HPN |
68 | #endif |
69 | ||
bd21e58e HPN |
70 | enum cris_disass_family |
71 | { cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 }; | |
72 | ||
73 | /* Stored in the disasm_info->private_data member. */ | |
74 | struct cris_disasm_data | |
75 | { | |
76 | /* Whether to print something less confusing if we find something | |
77 | matching a switch-construct. */ | |
78 | bfd_boolean trace_case; | |
79 | ||
80 | /* Whether this code is flagged as crisv32. FIXME: Should be an enum | |
81 | that includes "compatible". */ | |
82 | enum cris_disass_family distype; | |
83 | }; | |
84 | ||
6c95a37f HPN |
85 | /* Value of first element in switch. */ |
86 | static long case_offset = 0; | |
87 | ||
88 | /* How many more case-offsets to print. */ | |
89 | static long case_offset_counter = 0; | |
90 | ||
91 | /* Number of case offsets. */ | |
92 | static long no_of_case_offsets = 0; | |
93 | ||
94 | /* Candidate for next case_offset. */ | |
95 | static long last_immediate = 0; | |
96 | ||
b34976b6 | 97 | static int cris_constraint |
47b0e7ad | 98 | (const char *, unsigned, unsigned, struct cris_disasm_data *); |
bd21e58e HPN |
99 | |
100 | /* Parse disassembler options and store state in info. FIXME: For the | |
101 | time being, we abuse static variables. */ | |
102 | ||
103 | static bfd_boolean | |
47b0e7ad NC |
104 | cris_parse_disassembler_options (disassemble_info *info, |
105 | enum cris_disass_family distype) | |
bd21e58e HPN |
106 | { |
107 | struct cris_disasm_data *disdata; | |
108 | ||
109 | info->private_data = calloc (1, sizeof (struct cris_disasm_data)); | |
110 | disdata = (struct cris_disasm_data *) info->private_data; | |
111 | if (disdata == NULL) | |
112 | return FALSE; | |
113 | ||
114 | /* Default true. */ | |
115 | disdata->trace_case | |
116 | = (info->disassembler_options == NULL | |
117 | || (strcmp (info->disassembler_options, "nocase") != 0)); | |
118 | ||
119 | disdata->distype = distype; | |
120 | return TRUE; | |
121 | } | |
6c95a37f | 122 | |
6c95a37f | 123 | static const struct cris_spec_reg * |
47b0e7ad | 124 | spec_reg_info (unsigned int sreg, enum cris_disass_family distype) |
6c95a37f HPN |
125 | { |
126 | int i; | |
47b0e7ad | 127 | |
6c95a37f HPN |
128 | for (i = 0; cris_spec_regs[i].name != NULL; i++) |
129 | { | |
130 | if (cris_spec_regs[i].number == sreg) | |
bd21e58e HPN |
131 | { |
132 | if (distype == cris_dis_v32) | |
133 | switch (cris_spec_regs[i].applicable_version) | |
134 | { | |
135 | case cris_ver_warning: | |
136 | case cris_ver_version_all: | |
137 | case cris_ver_v3p: | |
138 | case cris_ver_v8p: | |
139 | case cris_ver_v10p: | |
140 | case cris_ver_v32p: | |
141 | /* No ambiguous sizes or register names with CRISv32. */ | |
142 | if (cris_spec_regs[i].warning == NULL) | |
143 | return &cris_spec_regs[i]; | |
144 | default: | |
145 | ; | |
146 | } | |
147 | else if (cris_spec_regs[i].applicable_version != cris_ver_v32p) | |
148 | return &cris_spec_regs[i]; | |
149 | } | |
6c95a37f HPN |
150 | } |
151 | ||
152 | return NULL; | |
153 | } | |
154 | ||
6c95a37f | 155 | /* Return the number of bits in the argument. */ |
78966507 | 156 | |
6c95a37f | 157 | static int |
47b0e7ad | 158 | number_of_bits (unsigned int val) |
6c95a37f HPN |
159 | { |
160 | int bits; | |
161 | ||
33822a8e | 162 | for (bits = 0; val != 0; val &= val - 1) |
6c95a37f HPN |
163 | bits++; |
164 | ||
165 | return bits; | |
166 | } | |
167 | ||
6c95a37f | 168 | /* Get an entry in the opcode-table. */ |
78966507 | 169 | |
6c95a37f | 170 | static const struct cris_opcode * |
47b0e7ad NC |
171 | get_opcode_entry (unsigned int insn, |
172 | unsigned int prefix_insn, | |
173 | struct cris_disasm_data *disdata) | |
6c95a37f HPN |
174 | { |
175 | /* For non-prefixed insns, we keep a table of pointers, indexed by the | |
176 | insn code. Each entry is initialized when found to be NULL. */ | |
177 | static const struct cris_opcode **opc_table = NULL; | |
178 | ||
179 | const struct cris_opcode *max_matchedp = NULL; | |
180 | const struct cris_opcode **prefix_opc_table = NULL; | |
181 | ||
182 | /* We hold a table for each prefix that need to be handled differently. */ | |
183 | static const struct cris_opcode **dip_prefixes = NULL; | |
184 | static const struct cris_opcode **bdapq_m1_prefixes = NULL; | |
185 | static const struct cris_opcode **bdapq_m2_prefixes = NULL; | |
186 | static const struct cris_opcode **bdapq_m4_prefixes = NULL; | |
187 | static const struct cris_opcode **rest_prefixes = NULL; | |
188 | ||
189 | /* Allocate and clear the opcode-table. */ | |
190 | if (opc_table == NULL) | |
191 | { | |
bd21e58e HPN |
192 | opc_table = malloc (65536 * sizeof (opc_table[0])); |
193 | if (opc_table == NULL) | |
194 | return NULL; | |
195 | ||
6c95a37f HPN |
196 | memset (opc_table, 0, 65536 * sizeof (const struct cris_opcode *)); |
197 | ||
198 | dip_prefixes | |
bd21e58e HPN |
199 | = malloc (65536 * sizeof (const struct cris_opcode **)); |
200 | if (dip_prefixes == NULL) | |
201 | return NULL; | |
202 | ||
6c95a37f HPN |
203 | memset (dip_prefixes, 0, 65536 * sizeof (dip_prefixes[0])); |
204 | ||
205 | bdapq_m1_prefixes | |
bd21e58e HPN |
206 | = malloc (65536 * sizeof (const struct cris_opcode **)); |
207 | if (bdapq_m1_prefixes == NULL) | |
208 | return NULL; | |
209 | ||
6c95a37f HPN |
210 | memset (bdapq_m1_prefixes, 0, 65536 * sizeof (bdapq_m1_prefixes[0])); |
211 | ||
212 | bdapq_m2_prefixes | |
bd21e58e HPN |
213 | = malloc (65536 * sizeof (const struct cris_opcode **)); |
214 | if (bdapq_m2_prefixes == NULL) | |
215 | return NULL; | |
216 | ||
6c95a37f HPN |
217 | memset (bdapq_m2_prefixes, 0, 65536 * sizeof (bdapq_m2_prefixes[0])); |
218 | ||
219 | bdapq_m4_prefixes | |
bd21e58e HPN |
220 | = malloc (65536 * sizeof (const struct cris_opcode **)); |
221 | if (bdapq_m4_prefixes == NULL) | |
222 | return NULL; | |
223 | ||
6c95a37f HPN |
224 | memset (bdapq_m4_prefixes, 0, 65536 * sizeof (bdapq_m4_prefixes[0])); |
225 | ||
226 | rest_prefixes | |
bd21e58e HPN |
227 | = malloc (65536 * sizeof (const struct cris_opcode **)); |
228 | if (rest_prefixes == NULL) | |
229 | return NULL; | |
230 | ||
6c95a37f HPN |
231 | memset (rest_prefixes, 0, 65536 * sizeof (rest_prefixes[0])); |
232 | } | |
233 | ||
234 | /* Get the right table if this is a prefix. | |
235 | This code is connected to cris_constraints in that it knows what | |
236 | prefixes play a role in recognition of patterns; the necessary | |
237 | state is reflected by which table is used. If constraints | |
238 | involving match or non-match of prefix insns are changed, then this | |
239 | probably needs changing too. */ | |
240 | if (prefix_insn != NO_CRIS_PREFIX) | |
241 | { | |
242 | const struct cris_opcode *popcodep | |
243 | = (opc_table[prefix_insn] != NULL | |
244 | ? opc_table[prefix_insn] | |
bd21e58e | 245 | : get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata)); |
6c95a37f HPN |
246 | |
247 | if (popcodep == NULL) | |
248 | return NULL; | |
249 | ||
250 | if (popcodep->match == BDAP_QUICK_OPCODE) | |
251 | { | |
252 | /* Since some offsets are recognized with "push" macros, we | |
253 | have to have different tables for them. */ | |
254 | int offset = (prefix_insn & 255); | |
255 | ||
256 | if (offset > 127) | |
257 | offset -= 256; | |
258 | ||
259 | switch (offset) | |
260 | { | |
261 | case -4: | |
262 | prefix_opc_table = bdapq_m4_prefixes; | |
263 | break; | |
264 | ||
265 | case -2: | |
266 | prefix_opc_table = bdapq_m2_prefixes; | |
267 | break; | |
268 | ||
269 | case -1: | |
270 | prefix_opc_table = bdapq_m1_prefixes; | |
271 | break; | |
272 | ||
273 | default: | |
274 | prefix_opc_table = rest_prefixes; | |
275 | break; | |
276 | } | |
277 | } | |
278 | else if (popcodep->match == DIP_OPCODE) | |
279 | /* We don't allow postincrement when the prefix is DIP, so use a | |
280 | different table for DIP. */ | |
281 | prefix_opc_table = dip_prefixes; | |
282 | else | |
283 | prefix_opc_table = rest_prefixes; | |
284 | } | |
285 | ||
286 | if (prefix_insn != NO_CRIS_PREFIX | |
287 | && prefix_opc_table[insn] != NULL) | |
288 | max_matchedp = prefix_opc_table[insn]; | |
289 | else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL) | |
290 | max_matchedp = opc_table[insn]; | |
291 | else | |
292 | { | |
293 | const struct cris_opcode *opcodep; | |
294 | int max_level_of_match = -1; | |
295 | ||
296 | for (opcodep = cris_opcodes; | |
297 | opcodep->name != NULL; | |
298 | opcodep++) | |
299 | { | |
300 | int level_of_match; | |
301 | ||
bd21e58e HPN |
302 | if (disdata->distype == cris_dis_v32) |
303 | { | |
304 | switch (opcodep->applicable_version) | |
305 | { | |
306 | case cris_ver_version_all: | |
307 | break; | |
308 | ||
309 | case cris_ver_v0_3: | |
310 | case cris_ver_v0_10: | |
311 | case cris_ver_v3_10: | |
312 | case cris_ver_sim_v0_10: | |
313 | case cris_ver_v8_10: | |
314 | case cris_ver_v10: | |
315 | case cris_ver_warning: | |
316 | continue; | |
317 | ||
318 | case cris_ver_v3p: | |
319 | case cris_ver_v8p: | |
320 | case cris_ver_v10p: | |
321 | case cris_ver_v32p: | |
322 | break; | |
323 | ||
324 | case cris_ver_v8: | |
325 | abort (); | |
326 | default: | |
327 | abort (); | |
328 | } | |
329 | } | |
330 | else | |
331 | { | |
332 | switch (opcodep->applicable_version) | |
333 | { | |
334 | case cris_ver_version_all: | |
335 | case cris_ver_v0_3: | |
336 | case cris_ver_v3p: | |
337 | case cris_ver_v0_10: | |
338 | case cris_ver_v8p: | |
339 | case cris_ver_v8_10: | |
340 | case cris_ver_v10: | |
341 | case cris_ver_sim_v0_10: | |
342 | case cris_ver_v10p: | |
343 | case cris_ver_warning: | |
344 | break; | |
345 | ||
346 | case cris_ver_v32p: | |
347 | continue; | |
348 | ||
349 | case cris_ver_v8: | |
350 | abort (); | |
351 | default: | |
352 | abort (); | |
353 | } | |
354 | } | |
355 | ||
6c95a37f HPN |
356 | /* We give a double lead for bits matching the template in |
357 | cris_opcodes. Not even, because then "move p8,r10" would | |
358 | be given 2 bits lead over "clear.d r10". When there's a | |
359 | tie, the first entry in the table wins. This is | |
360 | deliberate, to avoid a more complicated recognition | |
361 | formula. */ | |
362 | if ((opcodep->match & insn) == opcodep->match | |
363 | && (opcodep->lose & insn) == 0 | |
364 | && ((level_of_match | |
365 | = cris_constraint (opcodep->args, | |
366 | insn, | |
bd21e58e HPN |
367 | prefix_insn, |
368 | disdata)) | |
6c95a37f HPN |
369 | >= 0) |
370 | && ((level_of_match | |
371 | += 2 * number_of_bits (opcodep->match | |
372 | | opcodep->lose)) | |
373 | > max_level_of_match)) | |
374 | { | |
375 | max_matchedp = opcodep; | |
376 | max_level_of_match = level_of_match; | |
377 | ||
378 | /* If there was a full match, never mind looking | |
379 | further. */ | |
380 | if (level_of_match >= 2 * 16) | |
381 | break; | |
382 | } | |
383 | } | |
384 | /* Fill in the new entry. | |
385 | ||
386 | If there are changes to the opcode-table involving prefixes, and | |
387 | disassembly then does not work correctly, try removing the | |
388 | else-clause below that fills in the prefix-table. If that | |
389 | helps, you need to change the prefix_opc_table setting above, or | |
390 | something related. */ | |
391 | if (prefix_insn == NO_CRIS_PREFIX) | |
392 | opc_table[insn] = max_matchedp; | |
393 | else | |
394 | prefix_opc_table[insn] = max_matchedp; | |
395 | } | |
396 | ||
397 | return max_matchedp; | |
398 | } | |
399 | ||
6c95a37f HPN |
400 | /* Return -1 if the constraints of a bitwise-matched instruction say |
401 | that there is no match. Otherwise return a nonnegative number | |
402 | indicating the confidence in the match (higher is better). */ | |
78966507 | 403 | |
6c95a37f | 404 | static int |
47b0e7ad NC |
405 | cris_constraint (const char *cs, |
406 | unsigned int insn, | |
407 | unsigned int prefix_insn, | |
408 | struct cris_disasm_data *disdata) | |
6c95a37f HPN |
409 | { |
410 | int retval = 0; | |
411 | int tmp; | |
412 | int prefix_ok = 0; | |
6c95a37f | 413 | const char *s; |
47b0e7ad | 414 | |
33822a8e | 415 | for (s = cs; *s; s++) |
6c95a37f HPN |
416 | switch (*s) |
417 | { | |
418 | case '!': | |
bd21e58e HPN |
419 | /* Do not recognize "pop" if there's a prefix and then only for |
420 | v0..v10. */ | |
421 | if (prefix_insn != NO_CRIS_PREFIX | |
422 | || disdata->distype != cris_dis_v0_v10) | |
6c95a37f HPN |
423 | return -1; |
424 | break; | |
425 | ||
bd21e58e HPN |
426 | case 'U': |
427 | /* Not recognized at disassembly. */ | |
428 | return -1; | |
429 | ||
6c95a37f HPN |
430 | case 'M': |
431 | /* Size modifier for "clear", i.e. special register 0, 4 or 8. | |
432 | Check that it is one of them. Only special register 12 could | |
433 | be mismatched, but checking for matches is more logical than | |
434 | checking for mismatches when there are only a few cases. */ | |
435 | tmp = ((insn >> 12) & 0xf); | |
436 | if (tmp != 0 && tmp != 4 && tmp != 8) | |
437 | return -1; | |
438 | break; | |
439 | ||
440 | case 'm': | |
441 | if ((insn & 0x30) == 0x30) | |
442 | return -1; | |
443 | break; | |
444 | ||
445 | case 'S': | |
446 | /* A prefix operand without side-effect. */ | |
447 | if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0) | |
448 | { | |
449 | prefix_ok = 1; | |
450 | break; | |
451 | } | |
452 | else | |
453 | return -1; | |
454 | ||
455 | case 's': | |
456 | case 'y': | |
bd21e58e | 457 | case 'Y': |
6c95a37f HPN |
458 | /* If this is a prefixed insn with postincrement (side-effect), |
459 | the prefix must not be DIP. */ | |
460 | if (prefix_insn != NO_CRIS_PREFIX) | |
461 | { | |
462 | if (insn & 0x400) | |
463 | { | |
464 | const struct cris_opcode *prefix_opcodep | |
bd21e58e | 465 | = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata); |
6c95a37f HPN |
466 | |
467 | if (prefix_opcodep->match == DIP_OPCODE) | |
468 | return -1; | |
469 | } | |
470 | ||
471 | prefix_ok = 1; | |
472 | } | |
473 | break; | |
474 | ||
475 | case 'B': | |
476 | /* If we don't fall through, then the prefix is ok. */ | |
477 | prefix_ok = 1; | |
478 | ||
479 | /* A "push" prefix. Check for valid "push" size. | |
480 | In case of special register, it may be != 4. */ | |
481 | if (prefix_insn != NO_CRIS_PREFIX) | |
482 | { | |
483 | /* Match the prefix insn to BDAPQ. */ | |
484 | const struct cris_opcode *prefix_opcodep | |
bd21e58e | 485 | = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata); |
6c95a37f HPN |
486 | |
487 | if (prefix_opcodep->match == BDAP_QUICK_OPCODE) | |
488 | { | |
489 | int pushsize = (prefix_insn & 255); | |
490 | ||
491 | if (pushsize > 127) | |
492 | pushsize -= 256; | |
493 | ||
494 | if (s[1] == 'P') | |
495 | { | |
496 | unsigned int spec_reg = (insn >> 12) & 15; | |
497 | const struct cris_spec_reg *sregp | |
bd21e58e | 498 | = spec_reg_info (spec_reg, disdata->distype); |
6c95a37f HPN |
499 | |
500 | /* For a special-register, the "prefix size" must | |
501 | match the size of the register. */ | |
502 | if (sregp && sregp->reg_size == (unsigned int) -pushsize) | |
503 | break; | |
504 | } | |
505 | else if (s[1] == 'R') | |
506 | { | |
507 | if ((insn & 0x30) == 0x20 && pushsize == -4) | |
508 | break; | |
509 | } | |
510 | /* FIXME: Should abort here; next constraint letter | |
511 | *must* be 'P' or 'R'. */ | |
512 | } | |
513 | } | |
514 | return -1; | |
515 | ||
516 | case 'D': | |
517 | retval = (((insn >> 12) & 15) == (insn & 15)); | |
518 | if (!retval) | |
519 | return -1; | |
520 | else | |
521 | retval += 4; | |
522 | break; | |
523 | ||
524 | case 'P': | |
525 | { | |
526 | const struct cris_spec_reg *sregp | |
bd21e58e | 527 | = spec_reg_info ((insn >> 12) & 15, disdata->distype); |
6c95a37f HPN |
528 | |
529 | /* Since we match four bits, we will give a value of 4-1 = 3 | |
530 | in a match. If there is a corresponding exact match of a | |
531 | special register in another pattern, it will get a value of | |
532 | 4, which will be higher. This should be correct in that an | |
533 | exact pattern would match better than a general pattern. | |
534 | ||
535 | Note that there is a reason for not returning zero; the | |
536 | pattern for "clear" is partly matched in the bit-pattern | |
537 | (the two lower bits must be zero), while the bit-pattern | |
538 | for a move from a special register is matched in the | |
539 | register constraint. */ | |
540 | ||
541 | if (sregp != NULL) | |
542 | { | |
543 | retval += 3; | |
544 | break; | |
545 | } | |
546 | else | |
547 | return -1; | |
548 | } | |
549 | } | |
550 | ||
551 | if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok) | |
552 | return -1; | |
553 | ||
554 | return retval; | |
555 | } | |
556 | ||
47b0e7ad NC |
557 | /* Format number as hex with a leading "0x" into outbuffer. */ |
558 | ||
559 | static char * | |
560 | format_hex (unsigned long number, | |
561 | char *outbuffer, | |
562 | struct cris_disasm_data *disdata) | |
563 | { | |
564 | /* Truncate negative numbers on >32-bit hosts. */ | |
565 | number &= 0xffffffff; | |
566 | ||
567 | sprintf (outbuffer, "0x%lx", number); | |
568 | ||
569 | /* Save this value for the "case" support. */ | |
570 | if (TRACE_CASE) | |
571 | last_immediate = number; | |
572 | ||
573 | return outbuffer + strlen (outbuffer); | |
574 | } | |
575 | ||
576 | /* Format number as decimal into outbuffer. Parameter signedp says | |
577 | whether the number should be formatted as signed (!= 0) or | |
578 | unsigned (== 0). */ | |
579 | ||
580 | static char * | |
581 | format_dec (long number, char *outbuffer, int signedp) | |
582 | { | |
583 | last_immediate = number; | |
584 | sprintf (outbuffer, signedp ? "%ld" : "%lu", number); | |
585 | ||
586 | return outbuffer + strlen (outbuffer); | |
587 | } | |
588 | ||
589 | /* Format the name of the general register regno into outbuffer. */ | |
590 | ||
591 | static char * | |
592 | format_reg (struct cris_disasm_data *disdata, | |
593 | int regno, | |
594 | char *outbuffer_start, | |
595 | bfd_boolean with_reg_prefix) | |
596 | { | |
597 | char *outbuffer = outbuffer_start; | |
598 | ||
599 | if (with_reg_prefix) | |
600 | *outbuffer++ = REGISTER_PREFIX_CHAR; | |
601 | ||
602 | switch (regno) | |
603 | { | |
604 | case 15: | |
605 | /* For v32, there is no context in which we output PC. */ | |
606 | if (disdata->distype == cris_dis_v32) | |
607 | strcpy (outbuffer, "acr"); | |
608 | else | |
609 | strcpy (outbuffer, "pc"); | |
610 | break; | |
611 | ||
612 | case 14: | |
613 | strcpy (outbuffer, "sp"); | |
614 | break; | |
615 | ||
616 | default: | |
617 | sprintf (outbuffer, "r%d", regno); | |
618 | break; | |
619 | } | |
620 | ||
621 | return outbuffer_start + strlen (outbuffer_start); | |
622 | } | |
623 | ||
624 | /* Format the name of a support register into outbuffer. */ | |
625 | ||
626 | static char * | |
627 | format_sup_reg (unsigned int regno, | |
628 | char *outbuffer_start, | |
629 | bfd_boolean with_reg_prefix) | |
630 | { | |
631 | char *outbuffer = outbuffer_start; | |
632 | int i; | |
633 | ||
634 | if (with_reg_prefix) | |
635 | *outbuffer++ = REGISTER_PREFIX_CHAR; | |
636 | ||
637 | for (i = 0; cris_support_regs[i].name != NULL; i++) | |
638 | if (cris_support_regs[i].number == regno) | |
639 | { | |
640 | sprintf (outbuffer, "%s", cris_support_regs[i].name); | |
641 | return outbuffer_start + strlen (outbuffer_start); | |
642 | } | |
643 | ||
644 | /* There's supposed to be register names covering all numbers, though | |
645 | some may be generic names. */ | |
646 | sprintf (outbuffer, "format_sup_reg-BUG"); | |
647 | return outbuffer_start + strlen (outbuffer_start); | |
648 | } | |
649 | ||
6c95a37f | 650 | /* Return the length of an instruction. */ |
78966507 | 651 | |
6c95a37f | 652 | static unsigned |
47b0e7ad NC |
653 | bytes_to_skip (unsigned int insn, |
654 | const struct cris_opcode *matchedp, | |
cdedc9f0 HPN |
655 | enum cris_disass_family distype, |
656 | const struct cris_opcode *prefix_matchedp) | |
6c95a37f HPN |
657 | { |
658 | /* Each insn is a word plus "immediate" operands. */ | |
659 | unsigned to_skip = 2; | |
660 | const char *template = matchedp->args; | |
661 | const char *s; | |
662 | ||
663 | for (s = template; *s; s++) | |
bd21e58e | 664 | if ((*s == 's' || *s == 'N' || *s == 'Y') |
cdedc9f0 HPN |
665 | && (insn & 0x400) && (insn & 15) == 15 |
666 | && prefix_matchedp == NULL) | |
6c95a37f HPN |
667 | { |
668 | /* Immediate via [pc+], so we have to check the size of the | |
669 | operand. */ | |
670 | int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3)); | |
671 | ||
672 | if (matchedp->imm_oprnd_size == SIZE_FIX_32) | |
673 | to_skip += 4; | |
674 | else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG) | |
675 | { | |
676 | const struct cris_spec_reg *sregp | |
bd21e58e | 677 | = spec_reg_info ((insn >> 12) & 15, distype); |
6c95a37f HPN |
678 | |
679 | /* FIXME: Improve error handling; should have been caught | |
680 | earlier. */ | |
681 | if (sregp == NULL) | |
682 | return 2; | |
683 | ||
bd21e58e HPN |
684 | /* PC is incremented by two, not one, for a byte. Except on |
685 | CRISv32, where constants are always DWORD-size for | |
686 | special registers. */ | |
687 | to_skip += | |
688 | distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1; | |
6c95a37f HPN |
689 | } |
690 | else | |
691 | to_skip += (mode_size + 1) & ~1; | |
692 | } | |
bd21e58e HPN |
693 | else if (*s == 'n') |
694 | to_skip += 4; | |
6c95a37f HPN |
695 | else if (*s == 'b') |
696 | to_skip += 2; | |
697 | ||
698 | return to_skip; | |
699 | } | |
700 | ||
6c95a37f | 701 | /* Print condition code flags. */ |
78966507 | 702 | |
6c95a37f | 703 | static char * |
47b0e7ad | 704 | print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp) |
6c95a37f HPN |
705 | { |
706 | /* Use the v8 (Etrax 100) flag definitions for disassembly. | |
707 | The differences with v0 (Etrax 1..4) vs. Svinto are: | |
bd21e58e HPN |
708 | v0 'd' <=> v8 'm' |
709 | v0 'e' <=> v8 'b'. | |
710 | FIXME: Emit v0..v3 flag names somehow. */ | |
711 | static const char v8_fnames[] = "cvznxibm"; | |
712 | static const char v32_fnames[] = "cvznxiup"; | |
713 | const char *fnames | |
714 | = disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames; | |
6c95a37f HPN |
715 | |
716 | unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15)); | |
717 | int i; | |
718 | ||
719 | for (i = 0; i < 8; i++) | |
720 | if (flagbits & (1 << i)) | |
721 | *cp++ = fnames[i]; | |
722 | ||
723 | return cp; | |
724 | } | |
725 | ||
6c95a37f HPN |
726 | /* Print out an insn with its operands, and update the info->insn_type |
727 | fields. The prefix_opcodep and the rest hold a prefix insn that is | |
728 | supposed to be output as an address mode. */ | |
78966507 | 729 | |
6c95a37f | 730 | static void |
47b0e7ad NC |
731 | print_with_operands (const struct cris_opcode *opcodep, |
732 | unsigned int insn, | |
733 | unsigned char *buffer, | |
734 | bfd_vma addr, | |
735 | disassemble_info *info, | |
736 | /* If a prefix insn was before this insn (and is supposed | |
737 | to be output as an address), here is a description of | |
738 | it. */ | |
739 | const struct cris_opcode *prefix_opcodep, | |
740 | unsigned int prefix_insn, | |
741 | unsigned char *prefix_buffer, | |
742 | bfd_boolean with_reg_prefix) | |
6c95a37f HPN |
743 | { |
744 | /* Get a buffer of somewhat reasonable size where we store | |
745 | intermediate parts of the insn. */ | |
78966507 | 746 | char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2]; |
6c95a37f HPN |
747 | char *tp = temp; |
748 | static const char mode_char[] = "bwd?"; | |
749 | const char *s; | |
750 | const char *cs; | |
bd21e58e HPN |
751 | struct cris_disasm_data *disdata |
752 | = (struct cris_disasm_data *) info->private_data; | |
6c95a37f HPN |
753 | |
754 | /* Print out the name first thing we do. */ | |
755 | (*info->fprintf_func) (info->stream, "%s", opcodep->name); | |
756 | ||
757 | cs = opcodep->args; | |
758 | s = cs; | |
759 | ||
760 | /* Ignore any prefix indicator. */ | |
761 | if (*s == 'p') | |
762 | s++; | |
763 | ||
764 | if (*s == 'm' || *s == 'M' || *s == 'z') | |
765 | { | |
766 | *tp++ = '.'; | |
767 | ||
768 | /* Get the size-letter. */ | |
769 | *tp++ = *s == 'M' | |
770 | ? (insn & 0x8000 ? 'd' | |
771 | : insn & 0x4000 ? 'w' : 'b') | |
772 | : mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)]; | |
773 | ||
774 | /* Ignore the size and the space character that follows. */ | |
775 | s += 2; | |
776 | } | |
777 | ||
778 | /* Add a space if this isn't a long-branch, because for those will add | |
779 | the condition part of the name later. */ | |
780 | if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256)) | |
781 | *tp++ = ' '; | |
782 | ||
783 | /* Fill in the insn-type if deducible from the name (and there's no | |
784 | better way). */ | |
785 | if (opcodep->name[0] == 'j') | |
786 | { | |
0112cd26 | 787 | if (CONST_STRNEQ (opcodep->name, "jsr")) |
6c95a37f HPN |
788 | /* It's "jsr" or "jsrc". */ |
789 | info->insn_type = dis_jsr; | |
790 | else | |
791 | /* Any other jump-type insn is considered a branch. */ | |
792 | info->insn_type = dis_branch; | |
793 | } | |
794 | ||
795 | /* We might know some more fields right now. */ | |
796 | info->branch_delay_insns = opcodep->delayed; | |
797 | ||
798 | /* Handle operands. */ | |
799 | for (; *s; s++) | |
800 | { | |
801 | switch (*s) | |
802 | { | |
bd21e58e HPN |
803 | case 'T': |
804 | tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix); | |
805 | break; | |
806 | ||
807 | case 'A': | |
808 | if (with_reg_prefix) | |
809 | *tp++ = REGISTER_PREFIX_CHAR; | |
810 | *tp++ = 'a'; | |
811 | *tp++ = 'c'; | |
812 | *tp++ = 'r'; | |
813 | break; | |
814 | ||
815 | case '[': | |
816 | case ']': | |
6c95a37f HPN |
817 | case ',': |
818 | *tp++ = *s; | |
819 | break; | |
820 | ||
821 | case '!': | |
bd21e58e HPN |
822 | /* Ignore at this point; used at earlier stages to avoid |
823 | recognition if there's a prefix at something that in other | |
824 | ways looks like a "pop". */ | |
825 | break; | |
826 | ||
827 | case 'd': | |
828 | /* Ignore. This is an optional ".d " on the large one of | |
829 | relaxable insns. */ | |
6c95a37f HPN |
830 | break; |
831 | ||
832 | case 'B': | |
833 | /* This was the prefix that made this a "push". We've already | |
834 | handled it by recognizing it, so signal that the prefix is | |
835 | handled by setting it to NULL. */ | |
836 | prefix_opcodep = NULL; | |
837 | break; | |
838 | ||
839 | case 'D': | |
840 | case 'r': | |
bd21e58e | 841 | tp = format_reg (disdata, insn & 15, tp, with_reg_prefix); |
6c95a37f HPN |
842 | break; |
843 | ||
844 | case 'R': | |
bd21e58e HPN |
845 | tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix); |
846 | break; | |
847 | ||
848 | case 'n': | |
849 | { | |
850 | /* Like N but pc-relative to the start of the insn. */ | |
851 | unsigned long number | |
852 | = (buffer[2] + buffer[3] * 256 + buffer[4] * 65536 | |
853 | + buffer[5] * 0x1000000 + addr); | |
854 | ||
855 | /* Finish off and output previous formatted bytes. */ | |
856 | *tp = 0; | |
857 | if (temp[0]) | |
858 | (*info->fprintf_func) (info->stream, "%s", temp); | |
859 | tp = temp; | |
860 | ||
861 | (*info->print_address_func) ((bfd_vma) number, info); | |
862 | } | |
863 | break; | |
864 | ||
865 | case 'u': | |
866 | { | |
867 | /* Like n but the offset is bits <3:0> in the instruction. */ | |
868 | unsigned long number = (buffer[0] & 0xf) * 2 + addr; | |
869 | ||
870 | /* Finish off and output previous formatted bytes. */ | |
871 | *tp = 0; | |
872 | if (temp[0]) | |
873 | (*info->fprintf_func) (info->stream, "%s", temp); | |
874 | tp = temp; | |
875 | ||
876 | (*info->print_address_func) ((bfd_vma) number, info); | |
877 | } | |
6c95a37f HPN |
878 | break; |
879 | ||
bd21e58e | 880 | case 'N': |
6c95a37f | 881 | case 'y': |
bd21e58e | 882 | case 'Y': |
6c95a37f HPN |
883 | case 'S': |
884 | case 's': | |
885 | /* Any "normal" memory operand. */ | |
cdedc9f0 | 886 | if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL) |
6c95a37f HPN |
887 | { |
888 | /* We're looking at [pc+], i.e. we need to output an immediate | |
889 | number, where the size can depend on different things. */ | |
890 | long number; | |
891 | int signedp | |
892 | = ((*cs == 'z' && (insn & 0x20)) | |
893 | || opcodep->match == BDAP_QUICK_OPCODE); | |
894 | int nbytes; | |
895 | ||
896 | if (opcodep->imm_oprnd_size == SIZE_FIX_32) | |
897 | nbytes = 4; | |
898 | else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG) | |
899 | { | |
900 | const struct cris_spec_reg *sregp | |
bd21e58e | 901 | = spec_reg_info ((insn >> 12) & 15, disdata->distype); |
6c95a37f HPN |
902 | |
903 | /* A NULL return should have been as a non-match earlier, | |
904 | so catch it as an internal error in the error-case | |
905 | below. */ | |
906 | if (sregp == NULL) | |
907 | /* Whatever non-valid size. */ | |
908 | nbytes = 42; | |
909 | else | |
bd21e58e HPN |
910 | /* PC is always incremented by a multiple of two. |
911 | For CRISv32, immediates are always 4 bytes for | |
912 | special registers. */ | |
913 | nbytes = disdata->distype == cris_dis_v32 | |
914 | ? 4 : (sregp->reg_size + 1) & ~1; | |
6c95a37f HPN |
915 | } |
916 | else | |
917 | { | |
918 | int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3)); | |
919 | ||
920 | if (mode_size == 1) | |
921 | nbytes = 2; | |
922 | else | |
923 | nbytes = mode_size; | |
924 | } | |
925 | ||
926 | switch (nbytes) | |
927 | { | |
928 | case 1: | |
929 | number = buffer[2]; | |
930 | if (signedp && number > 127) | |
931 | number -= 256; | |
932 | break; | |
933 | ||
934 | case 2: | |
935 | number = buffer[2] + buffer[3] * 256; | |
936 | if (signedp && number > 32767) | |
937 | number -= 65536; | |
938 | break; | |
939 | ||
940 | case 4: | |
941 | number | |
942 | = buffer[2] + buffer[3] * 256 + buffer[4] * 65536 | |
943 | + buffer[5] * 0x1000000; | |
944 | break; | |
945 | ||
946 | default: | |
947 | strcpy (tp, "bug"); | |
948 | tp += 3; | |
949 | number = 42; | |
950 | } | |
951 | ||
952 | if ((*cs == 'z' && (insn & 0x20)) | |
953 | || (opcodep->match == BDAP_QUICK_OPCODE | |
954 | && (nbytes <= 2 || buffer[1 + nbytes] == 0))) | |
955 | tp = format_dec (number, tp, signedp); | |
956 | else | |
957 | { | |
958 | unsigned int highbyte = (number >> 24) & 0xff; | |
959 | ||
960 | /* Either output this as an address or as a number. If it's | |
961 | a dword with the same high-byte as the address of the | |
962 | insn, assume it's an address, and also if it's a non-zero | |
963 | non-0xff high-byte. If this is a jsr or a jump, then | |
964 | it's definitely an address. */ | |
965 | if (nbytes == 4 | |
966 | && (highbyte == ((addr >> 24) & 0xff) | |
967 | || (highbyte != 0 && highbyte != 0xff) | |
968 | || info->insn_type == dis_branch | |
969 | || info->insn_type == dis_jsr)) | |
970 | { | |
971 | /* Finish off and output previous formatted bytes. */ | |
972 | *tp = 0; | |
973 | tp = temp; | |
974 | if (temp[0]) | |
975 | (*info->fprintf_func) (info->stream, "%s", temp); | |
976 | ||
977 | (*info->print_address_func) ((bfd_vma) number, info); | |
978 | ||
979 | info->target = number; | |
980 | } | |
981 | else | |
bd21e58e | 982 | tp = format_hex (number, tp, disdata); |
6c95a37f HPN |
983 | } |
984 | } | |
985 | else | |
986 | { | |
987 | /* Not an immediate number. Then this is a (possibly | |
988 | prefixed) memory operand. */ | |
989 | if (info->insn_type != dis_nonbranch) | |
990 | { | |
991 | int mode_size | |
992 | = 1 << ((insn >> 4) | |
993 | & (opcodep->args[0] == 'z' ? 1 : 3)); | |
994 | int size; | |
995 | info->insn_type = dis_dref; | |
996 | info->flags |= CRIS_DIS_FLAG_MEMREF; | |
997 | ||
998 | if (opcodep->imm_oprnd_size == SIZE_FIX_32) | |
999 | size = 4; | |
1000 | else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG) | |
1001 | { | |
1002 | const struct cris_spec_reg *sregp | |
bd21e58e | 1003 | = spec_reg_info ((insn >> 12) & 15, disdata->distype); |
6c95a37f HPN |
1004 | |
1005 | /* FIXME: Improve error handling; should have been caught | |
1006 | earlier. */ | |
1007 | if (sregp == NULL) | |
1008 | size = 4; | |
1009 | else | |
1010 | size = sregp->reg_size; | |
1011 | } | |
1012 | else | |
1013 | size = mode_size; | |
1014 | ||
1015 | info->data_size = size; | |
1016 | } | |
1017 | ||
1018 | *tp++ = '['; | |
1019 | ||
1020 | if (prefix_opcodep | |
1021 | /* We don't match dip with a postincremented field | |
1022 | as a side-effect address mode. */ | |
1023 | && ((insn & 0x400) == 0 | |
1024 | || prefix_opcodep->match != DIP_OPCODE)) | |
1025 | { | |
1026 | if (insn & 0x400) | |
1027 | { | |
bd21e58e | 1028 | tp = format_reg (disdata, insn & 15, tp, with_reg_prefix); |
6c95a37f HPN |
1029 | *tp++ = '='; |
1030 | } | |
1031 | ||
1032 | ||
1033 | /* We mainly ignore the prefix format string when the | |
1034 | address-mode syntax is output. */ | |
1035 | switch (prefix_opcodep->match) | |
1036 | { | |
1037 | case DIP_OPCODE: | |
1038 | /* It's [r], [r+] or [pc+]. */ | |
1039 | if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15) | |
1040 | { | |
1041 | /* It's [pc+]. This cannot possibly be anything | |
1042 | but an address. */ | |
1043 | unsigned long number | |
1044 | = prefix_buffer[2] + prefix_buffer[3] * 256 | |
1045 | + prefix_buffer[4] * 65536 | |
1046 | + prefix_buffer[5] * 0x1000000; | |
1047 | ||
1048 | info->target = (bfd_vma) number; | |
1049 | ||
1050 | /* Finish off and output previous formatted | |
1051 | data. */ | |
1052 | *tp = 0; | |
1053 | tp = temp; | |
1054 | if (temp[0]) | |
1055 | (*info->fprintf_func) (info->stream, "%s", temp); | |
1056 | ||
1057 | (*info->print_address_func) ((bfd_vma) number, info); | |
1058 | } | |
1059 | else | |
1060 | { | |
1061 | /* For a memref in an address, we use target2. | |
1062 | In this case, target is zero. */ | |
1063 | info->flags | |
1064 | |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG | |
1065 | | CRIS_DIS_FLAG_MEM_TARGET2_MEM); | |
1066 | ||
1067 | info->target2 = prefix_insn & 15; | |
1068 | ||
1069 | *tp++ = '['; | |
bd21e58e | 1070 | tp = format_reg (disdata, prefix_insn & 15, tp, |
78966507 | 1071 | with_reg_prefix); |
6c95a37f HPN |
1072 | if (prefix_insn & 0x400) |
1073 | *tp++ = '+'; | |
1074 | *tp++ = ']'; | |
1075 | } | |
1076 | break; | |
1077 | ||
1078 | case BDAP_QUICK_OPCODE: | |
1079 | { | |
1080 | int number; | |
1081 | ||
1082 | number = prefix_buffer[0]; | |
1083 | if (number > 127) | |
1084 | number -= 256; | |
1085 | ||
1086 | /* Output "reg+num" or, if num < 0, "reg-num". */ | |
bd21e58e | 1087 | tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp, |
78966507 | 1088 | with_reg_prefix); |
6c95a37f HPN |
1089 | if (number >= 0) |
1090 | *tp++ = '+'; | |
1091 | tp = format_dec (number, tp, 1); | |
1092 | ||
1093 | info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG; | |
1094 | info->target = (prefix_insn >> 12) & 15; | |
1095 | info->target2 = (bfd_vma) number; | |
1096 | break; | |
1097 | } | |
1098 | ||
1099 | case BIAP_OPCODE: | |
1100 | /* Output "r+R.m". */ | |
bd21e58e HPN |
1101 | tp = format_reg (disdata, prefix_insn & 15, tp, |
1102 | with_reg_prefix); | |
6c95a37f | 1103 | *tp++ = '+'; |
bd21e58e | 1104 | tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp, |
78966507 | 1105 | with_reg_prefix); |
6c95a37f HPN |
1106 | *tp++ = '.'; |
1107 | *tp++ = mode_char[(prefix_insn >> 4) & 3]; | |
1108 | ||
1109 | info->flags | |
1110 | |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG | |
1111 | | CRIS_DIS_FLAG_MEM_TARGET_IS_REG | |
1112 | ||
1113 | | ((prefix_insn & 0x8000) | |
1114 | ? CRIS_DIS_FLAG_MEM_TARGET2_MULT4 | |
1115 | : ((prefix_insn & 0x8000) | |
1116 | ? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0))); | |
1117 | ||
1118 | /* Is it the casejump? It's a "adds.w [pc+r%d.w],pc". */ | |
1119 | if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f) | |
1120 | /* Then start interpreting data as offsets. */ | |
1121 | case_offset_counter = no_of_case_offsets; | |
1122 | break; | |
1123 | ||
1124 | case BDAP_INDIR_OPCODE: | |
1125 | /* Output "r+s.m", or, if "s" is [pc+], "r+s" or | |
1126 | "r-s". */ | |
bd21e58e | 1127 | tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp, |
78966507 | 1128 | with_reg_prefix); |
6c95a37f HPN |
1129 | |
1130 | if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15) | |
1131 | { | |
1132 | long number; | |
1133 | unsigned int nbytes; | |
1134 | ||
1135 | /* It's a value. Get its size. */ | |
1136 | int mode_size = 1 << ((prefix_insn >> 4) & 3); | |
1137 | ||
1138 | if (mode_size == 1) | |
1139 | nbytes = 2; | |
1140 | else | |
1141 | nbytes = mode_size; | |
1142 | ||
1143 | switch (nbytes) | |
1144 | { | |
1145 | case 1: | |
1146 | number = prefix_buffer[2]; | |
1147 | if (number > 127) | |
1148 | number -= 256; | |
1149 | break; | |
1150 | ||
1151 | case 2: | |
1152 | number = prefix_buffer[2] + prefix_buffer[3] * 256; | |
1153 | if (number > 32767) | |
1154 | number -= 65536; | |
1155 | break; | |
1156 | ||
1157 | case 4: | |
1158 | number | |
1159 | = prefix_buffer[2] + prefix_buffer[3] * 256 | |
1160 | + prefix_buffer[4] * 65536 | |
1161 | + prefix_buffer[5] * 0x1000000; | |
1162 | break; | |
1163 | ||
1164 | default: | |
1165 | strcpy (tp, "bug"); | |
1166 | tp += 3; | |
1167 | number = 42; | |
1168 | } | |
1169 | ||
1170 | info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG; | |
1171 | info->target2 = (bfd_vma) number; | |
1172 | ||
1173 | /* If the size is dword, then assume it's an | |
1174 | address. */ | |
1175 | if (nbytes == 4) | |
1176 | { | |
1177 | /* Finish off and output previous formatted | |
1178 | bytes. */ | |
1179 | *tp++ = '+'; | |
1180 | *tp = 0; | |
1181 | tp = temp; | |
1182 | (*info->fprintf_func) (info->stream, "%s", temp); | |
1183 | ||
1184 | (*info->print_address_func) ((bfd_vma) number, info); | |
1185 | } | |
1186 | else | |
1187 | { | |
1188 | if (number >= 0) | |
1189 | *tp++ = '+'; | |
1190 | tp = format_dec (number, tp, 1); | |
1191 | } | |
1192 | } | |
1193 | else | |
1194 | { | |
1195 | /* Output "r+[R].m" or "r+[R+].m". */ | |
1196 | *tp++ = '+'; | |
1197 | *tp++ = '['; | |
bd21e58e | 1198 | tp = format_reg (disdata, prefix_insn & 15, tp, |
78966507 | 1199 | with_reg_prefix); |
6c95a37f HPN |
1200 | if (prefix_insn & 0x400) |
1201 | *tp++ = '+'; | |
1202 | *tp++ = ']'; | |
1203 | *tp++ = '.'; | |
1204 | *tp++ = mode_char[(prefix_insn >> 4) & 3]; | |
1205 | ||
1206 | info->flags | |
1207 | |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG | |
1208 | | CRIS_DIS_FLAG_MEM_TARGET2_MEM | |
1209 | | CRIS_DIS_FLAG_MEM_TARGET_IS_REG | |
1210 | ||
1211 | | (((prefix_insn >> 4) == 2) | |
1212 | ? 0 | |
1213 | : (((prefix_insn >> 4) & 3) == 1 | |
1214 | ? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD | |
1215 | : CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE))); | |
1216 | } | |
1217 | break; | |
1218 | ||
1219 | default: | |
1220 | (*info->fprintf_func) (info->stream, "?prefix-bug"); | |
1221 | } | |
1222 | ||
1223 | /* To mark that the prefix is used, reset it. */ | |
1224 | prefix_opcodep = NULL; | |
1225 | } | |
1226 | else | |
1227 | { | |
bd21e58e | 1228 | tp = format_reg (disdata, insn & 15, tp, with_reg_prefix); |
6c95a37f HPN |
1229 | |
1230 | info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG; | |
1231 | info->target = insn & 15; | |
1232 | ||
1233 | if (insn & 0x400) | |
1234 | *tp++ = '+'; | |
1235 | } | |
1236 | *tp++ = ']'; | |
1237 | } | |
1238 | break; | |
1239 | ||
1240 | case 'x': | |
bd21e58e | 1241 | tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix); |
6c95a37f HPN |
1242 | *tp++ = '.'; |
1243 | *tp++ = mode_char[(insn >> 4) & 3]; | |
1244 | break; | |
1245 | ||
1246 | case 'I': | |
1247 | tp = format_dec (insn & 63, tp, 0); | |
1248 | break; | |
1249 | ||
1250 | case 'b': | |
1251 | { | |
1252 | int where = buffer[2] + buffer[3] * 256; | |
1253 | ||
1254 | if (where > 32767) | |
1255 | where -= 65536; | |
1256 | ||
bd21e58e | 1257 | where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4); |
6c95a37f HPN |
1258 | |
1259 | if (insn == BA_PC_INCR_OPCODE) | |
1260 | info->insn_type = dis_branch; | |
1261 | else | |
1262 | info->insn_type = dis_condbranch; | |
1263 | ||
1264 | info->target = (bfd_vma) where; | |
1265 | ||
1266 | *tp = 0; | |
1267 | tp = temp; | |
1268 | (*info->fprintf_func) (info->stream, "%s%s ", | |
1269 | temp, cris_cc_strings[insn >> 12]); | |
1270 | ||
1271 | (*info->print_address_func) ((bfd_vma) where, info); | |
1272 | } | |
1273 | break; | |
1274 | ||
1275 | case 'c': | |
1276 | tp = format_dec (insn & 31, tp, 0); | |
1277 | break; | |
1278 | ||
1279 | case 'C': | |
1280 | tp = format_dec (insn & 15, tp, 0); | |
1281 | break; | |
1282 | ||
1283 | case 'o': | |
1284 | { | |
1285 | long offset = insn & 0xfe; | |
bd21e58e | 1286 | bfd_vma target; |
6c95a37f HPN |
1287 | |
1288 | if (insn & 1) | |
1289 | offset |= ~0xff; | |
1290 | ||
1291 | if (opcodep->match == BA_QUICK_OPCODE) | |
1292 | info->insn_type = dis_branch; | |
1293 | else | |
1294 | info->insn_type = dis_condbranch; | |
1295 | ||
bd21e58e HPN |
1296 | target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset; |
1297 | info->target = target; | |
6c95a37f HPN |
1298 | *tp = 0; |
1299 | tp = temp; | |
1300 | (*info->fprintf_func) (info->stream, "%s", temp); | |
bd21e58e | 1301 | (*info->print_address_func) (target, info); |
6c95a37f HPN |
1302 | } |
1303 | break; | |
1304 | ||
bd21e58e | 1305 | case 'Q': |
6c95a37f HPN |
1306 | case 'O': |
1307 | { | |
1308 | long number = buffer[0]; | |
1309 | ||
1310 | if (number > 127) | |
1311 | number = number - 256; | |
1312 | ||
1313 | tp = format_dec (number, tp, 1); | |
1314 | *tp++ = ','; | |
bd21e58e | 1315 | tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix); |
6c95a37f HPN |
1316 | } |
1317 | break; | |
1318 | ||
1319 | case 'f': | |
bd21e58e | 1320 | tp = print_flags (disdata, insn, tp); |
6c95a37f HPN |
1321 | break; |
1322 | ||
1323 | case 'i': | |
85064c79 | 1324 | tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1); |
6c95a37f HPN |
1325 | break; |
1326 | ||
1327 | case 'P': | |
1328 | { | |
1329 | const struct cris_spec_reg *sregp | |
bd21e58e | 1330 | = spec_reg_info ((insn >> 12) & 15, disdata->distype); |
6c95a37f HPN |
1331 | |
1332 | if (sregp->name == NULL) | |
1333 | /* Should have been caught as a non-match eariler. */ | |
1334 | *tp++ = '?'; | |
1335 | else | |
1336 | { | |
78966507 HPN |
1337 | if (with_reg_prefix) |
1338 | *tp++ = REGISTER_PREFIX_CHAR; | |
6c95a37f HPN |
1339 | strcpy (tp, sregp->name); |
1340 | tp += strlen (tp); | |
1341 | } | |
1342 | } | |
1343 | break; | |
1344 | ||
1345 | default: | |
1346 | strcpy (tp, "???"); | |
1347 | tp += 3; | |
1348 | } | |
1349 | } | |
1350 | ||
1351 | *tp = 0; | |
1352 | ||
1353 | if (prefix_opcodep) | |
1354 | (*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")", | |
1355 | prefix_opcodep->name, prefix_opcodep->args); | |
1356 | ||
1357 | (*info->fprintf_func) (info->stream, "%s", temp); | |
1358 | ||
1359 | /* Get info for matching case-tables, if we don't have any active. | |
1360 | We assume that the last constant seen is used; either in the insn | |
1361 | itself or in a "move.d const,rN, sub.d rN,rM"-like sequence. */ | |
1362 | if (TRACE_CASE && case_offset_counter == 0) | |
1363 | { | |
0112cd26 | 1364 | if (CONST_STRNEQ (opcodep->name, "sub")) |
6c95a37f HPN |
1365 | case_offset = last_immediate; |
1366 | ||
1367 | /* It could also be an "add", if there are negative case-values. */ | |
0112cd26 | 1368 | else if (CONST_STRNEQ (opcodep->name, "add")) |
47b0e7ad NC |
1369 | /* The first case is the negated operand to the add. */ |
1370 | case_offset = -last_immediate; | |
1371 | ||
6c95a37f | 1372 | /* A bound insn will tell us the number of cases. */ |
0112cd26 | 1373 | else if (CONST_STRNEQ (opcodep->name, "bound")) |
47b0e7ad NC |
1374 | no_of_case_offsets = last_immediate + 1; |
1375 | ||
6c95a37f HPN |
1376 | /* A jump or jsr or branch breaks the chain of insns for a |
1377 | case-table, so assume default first-case again. */ | |
1378 | else if (info->insn_type == dis_jsr | |
1379 | || info->insn_type == dis_branch | |
1380 | || info->insn_type == dis_condbranch) | |
1381 | case_offset = 0; | |
1382 | } | |
1383 | } | |
1384 | ||
1385 | ||
1386 | /* Print the CRIS instruction at address memaddr on stream. Returns | |
78966507 HPN |
1387 | length of the instruction, in bytes. Prefix register names with `$' if |
1388 | WITH_REG_PREFIX. */ | |
1389 | ||
1390 | static int | |
47b0e7ad NC |
1391 | print_insn_cris_generic (bfd_vma memaddr, |
1392 | disassemble_info *info, | |
1393 | bfd_boolean with_reg_prefix) | |
6c95a37f HPN |
1394 | { |
1395 | int nbytes; | |
1396 | unsigned int insn; | |
1397 | const struct cris_opcode *matchedp; | |
1398 | int advance = 0; | |
bd21e58e HPN |
1399 | struct cris_disasm_data *disdata |
1400 | = (struct cris_disasm_data *) info->private_data; | |
6c95a37f HPN |
1401 | |
1402 | /* No instruction will be disassembled as longer than this number of | |
1403 | bytes; stacked prefixes will not be expanded. */ | |
1404 | unsigned char buffer[MAX_BYTES_PER_CRIS_INSN]; | |
1405 | unsigned char *bufp; | |
d5b2f4d6 | 1406 | int status = 0; |
6c95a37f HPN |
1407 | bfd_vma addr; |
1408 | ||
1409 | /* There will be an "out of range" error after the last instruction. | |
1410 | Reading pairs of bytes in decreasing number, we hope that we will get | |
1411 | at least the amount that we will consume. | |
1412 | ||
1413 | If we can't get any data, or we do not get enough data, we print | |
1414 | the error message. */ | |
1415 | ||
1416 | for (nbytes = MAX_BYTES_PER_CRIS_INSN; nbytes > 0; nbytes -= 2) | |
1417 | { | |
1418 | status = (*info->read_memory_func) (memaddr, buffer, nbytes, info); | |
1419 | if (status == 0) | |
1420 | break; | |
1421 | } | |
1422 | ||
1423 | /* If we did not get all we asked for, then clear the rest. | |
1424 | Hopefully this makes a reproducible result in case of errors. */ | |
1425 | if (nbytes != MAX_BYTES_PER_CRIS_INSN) | |
1426 | memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes); | |
1427 | ||
1428 | addr = memaddr; | |
1429 | bufp = buffer; | |
1430 | ||
1431 | /* Set some defaults for the insn info. */ | |
1432 | info->insn_info_valid = 1; | |
1433 | info->branch_delay_insns = 0; | |
1434 | info->data_size = 0; | |
1435 | info->insn_type = dis_nonbranch; | |
1436 | info->flags = 0; | |
1437 | info->target = 0; | |
1438 | info->target2 = 0; | |
1439 | ||
1440 | /* If we got any data, disassemble it. */ | |
1441 | if (nbytes != 0) | |
1442 | { | |
1443 | matchedp = NULL; | |
1444 | ||
1445 | insn = bufp[0] + bufp[1] * 256; | |
1446 | ||
1447 | /* If we're in a case-table, don't disassemble the offsets. */ | |
1448 | if (TRACE_CASE && case_offset_counter != 0) | |
1449 | { | |
1450 | info->insn_type = dis_noninsn; | |
1451 | advance += 2; | |
1452 | ||
1453 | /* If to print data as offsets, then shortcut here. */ | |
0fd3a477 | 1454 | (*info->fprintf_func) (info->stream, "case %ld%s: -> ", |
6c95a37f HPN |
1455 | case_offset + no_of_case_offsets |
1456 | - case_offset_counter, | |
1457 | case_offset_counter == 1 ? "/default" : | |
1458 | ""); | |
1459 | ||
1460 | (*info->print_address_func) ((bfd_vma) | |
1461 | ((short) (insn) | |
1462 | + (long) (addr | |
1463 | - (no_of_case_offsets | |
1464 | - case_offset_counter) | |
1465 | * 2)), info); | |
1466 | case_offset_counter--; | |
1467 | ||
1468 | /* The default case start (without a "sub" or "add") must be | |
1469 | zero. */ | |
1470 | if (case_offset_counter == 0) | |
1471 | case_offset = 0; | |
1472 | } | |
1473 | else if (insn == 0) | |
1474 | { | |
1475 | /* We're often called to disassemble zeroes. While this is a | |
1476 | valid "bcc .+2" insn, it is also useless enough and enough | |
1477 | of a nuiscance that we will just output "bcc .+2" for it | |
1478 | and signal it as a noninsn. */ | |
bd21e58e HPN |
1479 | (*info->fprintf_func) (info->stream, |
1480 | disdata->distype == cris_dis_v32 | |
1481 | ? "bcc ." : "bcc .+2"); | |
6c95a37f HPN |
1482 | info->insn_type = dis_noninsn; |
1483 | advance += 2; | |
1484 | } | |
1485 | else | |
1486 | { | |
1487 | const struct cris_opcode *prefix_opcodep = NULL; | |
1488 | unsigned char *prefix_buffer = bufp; | |
1489 | unsigned int prefix_insn = insn; | |
1490 | int prefix_size = 0; | |
1491 | ||
bd21e58e | 1492 | matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata); |
6c95a37f HPN |
1493 | |
1494 | /* Check if we're supposed to write out prefixes as address | |
1495 | modes and if this was a prefix. */ | |
1496 | if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p') | |
1497 | { | |
1498 | /* If it's a prefix, put it into the prefix vars and get the | |
1499 | main insn. */ | |
bd21e58e | 1500 | prefix_size = bytes_to_skip (prefix_insn, matchedp, |
cdedc9f0 | 1501 | disdata->distype, NULL); |
6c95a37f HPN |
1502 | prefix_opcodep = matchedp; |
1503 | ||
1504 | insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256; | |
bd21e58e | 1505 | matchedp = get_opcode_entry (insn, prefix_insn, disdata); |
6c95a37f HPN |
1506 | |
1507 | if (matchedp != NULL) | |
1508 | { | |
1509 | addr += prefix_size; | |
1510 | bufp += prefix_size; | |
1511 | advance += prefix_size; | |
1512 | } | |
1513 | else | |
1514 | { | |
1515 | /* The "main" insn wasn't valid, at least not when | |
1516 | prefixed. Put back things enough to output the | |
1517 | prefix insn only, as a normal insn. */ | |
1518 | matchedp = prefix_opcodep; | |
1519 | insn = prefix_insn; | |
1520 | prefix_opcodep = NULL; | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | if (matchedp == NULL) | |
1525 | { | |
0fd3a477 | 1526 | (*info->fprintf_func) (info->stream, "??0x%x", insn); |
6c95a37f HPN |
1527 | advance += 2; |
1528 | ||
1529 | info->insn_type = dis_noninsn; | |
1530 | } | |
1531 | else | |
1532 | { | |
cdedc9f0 HPN |
1533 | advance |
1534 | += bytes_to_skip (insn, matchedp, disdata->distype, | |
1535 | prefix_opcodep); | |
6c95a37f HPN |
1536 | |
1537 | /* The info_type and assorted fields will be set according | |
1538 | to the operands. */ | |
1539 | print_with_operands (matchedp, insn, bufp, addr, info, | |
1540 | prefix_opcodep, prefix_insn, | |
78966507 | 1541 | prefix_buffer, with_reg_prefix); |
6c95a37f HPN |
1542 | } |
1543 | } | |
1544 | } | |
1545 | else | |
1546 | info->insn_type = dis_noninsn; | |
1547 | ||
1548 | /* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error | |
1549 | status when reading that much, and the insn decoding indicated a | |
1550 | length exceeding what we read, there is an error. */ | |
1551 | if (status != 0 && (nbytes == 0 || advance > nbytes)) | |
1552 | { | |
1553 | (*info->memory_error_func) (status, memaddr, info); | |
1554 | return -1; | |
1555 | } | |
1556 | ||
1557 | /* Max supported insn size with one folded prefix insn. */ | |
1558 | info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN; | |
1559 | ||
1560 | /* I would like to set this to a fixed value larger than the actual | |
1561 | number of bytes to print in order to avoid spaces between bytes, | |
1562 | but objdump.c (2.9.1) does not like that, so we print 16-bit | |
1563 | chunks, which is the next choice. */ | |
1564 | info->bytes_per_chunk = 2; | |
1565 | ||
1566 | /* Printing bytes in order of increasing addresses makes sense, | |
1567 | especially on a little-endian target. | |
1568 | This is completely the opposite of what you think; setting this to | |
1569 | BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N | |
1570 | we want. */ | |
1571 | info->display_endian = BFD_ENDIAN_BIG; | |
1572 | ||
1573 | return advance; | |
1574 | } | |
1575 | ||
bd21e58e | 1576 | /* Disassemble, prefixing register names with `$'. CRIS v0..v10. */ |
78966507 HPN |
1577 | |
1578 | static int | |
47b0e7ad NC |
1579 | print_insn_cris_with_register_prefix (bfd_vma vma, |
1580 | disassemble_info *info) | |
78966507 | 1581 | { |
bd21e58e HPN |
1582 | if (info->private_data == NULL |
1583 | && !cris_parse_disassembler_options (info, cris_dis_v0_v10)) | |
1584 | return -1; | |
1585 | return print_insn_cris_generic (vma, info, TRUE); | |
1586 | } | |
1587 | ||
1588 | /* Disassemble, prefixing register names with `$'. CRIS v32. */ | |
1589 | ||
1590 | static int | |
47b0e7ad NC |
1591 | print_insn_crisv32_with_register_prefix (bfd_vma vma, |
1592 | disassemble_info *info) | |
bd21e58e HPN |
1593 | { |
1594 | if (info->private_data == NULL | |
1595 | && !cris_parse_disassembler_options (info, cris_dis_v32)) | |
1596 | return -1; | |
1597 | return print_insn_cris_generic (vma, info, TRUE); | |
1598 | } | |
1599 | ||
1600 | /* Disassemble, prefixing register names with `$'. | |
1601 | Common v10 and v32 subset. */ | |
1602 | ||
1603 | static int | |
47b0e7ad NC |
1604 | print_insn_crisv10_v32_with_register_prefix (bfd_vma vma, |
1605 | disassemble_info *info) | |
bd21e58e HPN |
1606 | { |
1607 | if (info->private_data == NULL | |
1608 | && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32)) | |
1609 | return -1; | |
b34976b6 | 1610 | return print_insn_cris_generic (vma, info, TRUE); |
78966507 HPN |
1611 | } |
1612 | ||
bd21e58e | 1613 | /* Disassemble, no prefixes on register names. CRIS v0..v10. */ |
78966507 HPN |
1614 | |
1615 | static int | |
47b0e7ad NC |
1616 | print_insn_cris_without_register_prefix (bfd_vma vma, |
1617 | disassemble_info *info) | |
78966507 | 1618 | { |
bd21e58e HPN |
1619 | if (info->private_data == NULL |
1620 | && !cris_parse_disassembler_options (info, cris_dis_v0_v10)) | |
1621 | return -1; | |
1622 | return print_insn_cris_generic (vma, info, FALSE); | |
1623 | } | |
1624 | ||
1625 | /* Disassemble, no prefixes on register names. CRIS v32. */ | |
1626 | ||
1627 | static int | |
47b0e7ad NC |
1628 | print_insn_crisv32_without_register_prefix (bfd_vma vma, |
1629 | disassemble_info *info) | |
bd21e58e HPN |
1630 | { |
1631 | if (info->private_data == NULL | |
1632 | && !cris_parse_disassembler_options (info, cris_dis_v32)) | |
1633 | return -1; | |
1634 | return print_insn_cris_generic (vma, info, FALSE); | |
1635 | } | |
1636 | ||
1637 | /* Disassemble, no prefixes on register names. | |
1638 | Common v10 and v32 subset. */ | |
1639 | ||
1640 | static int | |
47b0e7ad NC |
1641 | print_insn_crisv10_v32_without_register_prefix (bfd_vma vma, |
1642 | disassemble_info *info) | |
bd21e58e HPN |
1643 | { |
1644 | if (info->private_data == NULL | |
1645 | && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32)) | |
1646 | return -1; | |
b34976b6 | 1647 | return print_insn_cris_generic (vma, info, FALSE); |
78966507 HPN |
1648 | } |
1649 | ||
1650 | /* Return a disassembler-function that prints registers with a `$' prefix, | |
bd21e58e HPN |
1651 | or one that prints registers without a prefix. |
1652 | FIXME: We should improve the solution to avoid the multitude of | |
1653 | functions seen above. */ | |
78966507 HPN |
1654 | |
1655 | disassembler_ftype | |
47b0e7ad | 1656 | cris_get_disassembler (bfd *abfd) |
78966507 | 1657 | { |
b6b0b32c HPN |
1658 | /* If there's no bfd in sight, we return what is valid as input in all |
1659 | contexts if fed back to the assembler: disassembly *with* register | |
bd21e58e HPN |
1660 | prefix. Unfortunately this will be totally wrong for v32. */ |
1661 | if (abfd == NULL) | |
78966507 HPN |
1662 | return print_insn_cris_with_register_prefix; |
1663 | ||
bd21e58e HPN |
1664 | if (bfd_get_symbol_leading_char (abfd) == 0) |
1665 | { | |
1666 | if (bfd_get_mach (abfd) == bfd_mach_cris_v32) | |
1667 | return print_insn_crisv32_with_register_prefix; | |
1668 | if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32) | |
1669 | return print_insn_crisv10_v32_with_register_prefix; | |
1670 | ||
1671 | /* We default to v10. This may be specifically specified in the | |
1672 | bfd mach, but is also the default setting. */ | |
1673 | return print_insn_cris_with_register_prefix; | |
1674 | } | |
1675 | ||
1676 | if (bfd_get_mach (abfd) == bfd_mach_cris_v32) | |
1677 | return print_insn_crisv32_without_register_prefix; | |
1678 | if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32) | |
1679 | return print_insn_crisv10_v32_without_register_prefix; | |
78966507 HPN |
1680 | return print_insn_cris_without_register_prefix; |
1681 | } | |
1682 | ||
47b0e7ad NC |
1683 | /* Local variables: |
1684 | eval: (c-set-style "gnu") | |
1685 | indent-tabs-mode: t | |
1686 | End: */ |