Commit | Line | Data |
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e0001a05 | 1 | /* Configurable Xtensa ISA support. |
3db64b00 | 2 | Copyright 2003, 2004, 2005, 2007 Free Software Foundation, Inc. |
e0001a05 NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
e0001a05 NC |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
e0001a05 | 20 | |
43cd72b9 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
43cd72b9 | 23 | #include "libbfd.h" |
e0001a05 NC |
24 | #include "xtensa-isa.h" |
25 | #include "xtensa-isa-internal.h" | |
26 | ||
43cd72b9 BW |
27 | xtensa_isa_status xtisa_errno; |
28 | char xtisa_error_msg[1024]; | |
29 | ||
30 | ||
31 | xtensa_isa_status | |
32 | xtensa_isa_errno (xtensa_isa isa __attribute__ ((unused))) | |
33 | { | |
34 | return xtisa_errno; | |
35 | } | |
36 | ||
e0001a05 | 37 | |
43cd72b9 BW |
38 | char * |
39 | xtensa_isa_error_msg (xtensa_isa isa __attribute__ ((unused))) | |
e0001a05 | 40 | { |
43cd72b9 BW |
41 | return xtisa_error_msg; |
42 | } | |
e0001a05 | 43 | |
43cd72b9 BW |
44 | |
45 | #define CHECK_ALLOC(MEM,ERRVAL) \ | |
46 | do { \ | |
47 | if ((MEM) == 0) \ | |
48 | { \ | |
49 | xtisa_errno = xtensa_isa_out_of_memory; \ | |
50 | strcpy (xtisa_error_msg, "out of memory"); \ | |
51 | return (ERRVAL); \ | |
52 | } \ | |
53 | } while (0) | |
54 | ||
55 | #define CHECK_ALLOC_FOR_INIT(MEM,ERRVAL,ERRNO_P,ERROR_MSG_P) \ | |
56 | do { \ | |
57 | if ((MEM) == 0) \ | |
58 | { \ | |
59 | xtisa_errno = xtensa_isa_out_of_memory; \ | |
60 | strcpy (xtisa_error_msg, "out of memory"); \ | |
61 | if (ERRNO_P) *(ERRNO_P) = xtisa_errno; \ | |
62 | if (ERROR_MSG_P) *(ERROR_MSG_P) = xtisa_error_msg; \ | |
63 | return (ERRVAL); \ | |
64 | } \ | |
65 | } while (0) | |
66 | ||
1fbc7e7a | 67 | |
43cd72b9 BW |
68 | \f |
69 | /* Instruction buffers. */ | |
70 | ||
71 | int | |
72 | xtensa_insnbuf_size (xtensa_isa isa) | |
73 | { | |
74 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
75 | return intisa->insnbuf_size; | |
e0001a05 NC |
76 | } |
77 | ||
78 | ||
43cd72b9 BW |
79 | xtensa_insnbuf |
80 | xtensa_insnbuf_alloc (xtensa_isa isa) | |
81 | { | |
82 | xtensa_insnbuf result = (xtensa_insnbuf) | |
83 | malloc (xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word)); | |
84 | CHECK_ALLOC (result, 0); | |
85 | return result; | |
86 | } | |
87 | ||
88 | ||
89 | void | |
90 | xtensa_insnbuf_free (xtensa_isa isa __attribute__ ((unused)), | |
91 | xtensa_insnbuf buf) | |
92 | { | |
93 | free (buf); | |
94 | } | |
95 | ||
96 | ||
97 | /* Given <byte_index>, the index of a byte in a xtensa_insnbuf, our | |
98 | internal representation of a xtensa instruction word, return the index of | |
99 | its word and the bit index of its low order byte in the xtensa_insnbuf. */ | |
100 | ||
101 | static inline int | |
102 | byte_to_word_index (int byte_index) | |
103 | { | |
104 | return byte_index / sizeof (xtensa_insnbuf_word); | |
105 | } | |
106 | ||
107 | ||
108 | static inline int | |
109 | byte_to_bit_index (int byte_index) | |
110 | { | |
111 | return (byte_index & 0x3) * 8; | |
112 | } | |
113 | ||
114 | ||
115 | /* Copy an instruction in the 32-bit words pointed at by "insn" to | |
116 | characters pointed at by "cp". This is more complicated than you | |
117 | might think because we want 16-bit instructions in bytes 2 & 3 for | |
118 | big-endian configurations. This function allows us to specify | |
119 | which byte in "insn" to start with and which way to increment, | |
120 | allowing trivial implementation for both big- and little-endian | |
121 | configurations....and it seems to make pretty good code for | |
122 | both. */ | |
123 | ||
124 | int | |
f075ee0c AM |
125 | xtensa_insnbuf_to_chars (xtensa_isa isa, |
126 | const xtensa_insnbuf insn, | |
127 | unsigned char *cp, | |
43cd72b9 BW |
128 | int num_chars) |
129 | { | |
130 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
131 | int insn_size = xtensa_isa_maxlength (isa); | |
132 | int fence_post, start, increment, i, byte_count; | |
133 | xtensa_format fmt; | |
134 | ||
135 | if (num_chars == 0) | |
136 | num_chars = insn_size; | |
137 | ||
138 | if (intisa->is_big_endian) | |
139 | { | |
140 | start = insn_size - 1; | |
141 | increment = -1; | |
142 | } | |
143 | else | |
144 | { | |
145 | start = 0; | |
146 | increment = 1; | |
147 | } | |
148 | ||
149 | /* Find the instruction format. Do nothing if the buffer does not contain | |
150 | a valid instruction since we need to know how many bytes to copy. */ | |
151 | fmt = xtensa_format_decode (isa, insn); | |
152 | if (fmt == XTENSA_UNDEFINED) | |
153 | return XTENSA_UNDEFINED; | |
154 | ||
155 | byte_count = xtensa_format_length (isa, fmt); | |
156 | if (byte_count == XTENSA_UNDEFINED) | |
157 | return XTENSA_UNDEFINED; | |
158 | ||
159 | if (byte_count > num_chars) | |
160 | { | |
161 | xtisa_errno = xtensa_isa_buffer_overflow; | |
162 | strcpy (xtisa_error_msg, "output buffer too small for instruction"); | |
163 | return XTENSA_UNDEFINED; | |
164 | } | |
165 | ||
166 | fence_post = start + (byte_count * increment); | |
167 | ||
168 | for (i = start; i != fence_post; i += increment, ++cp) | |
169 | { | |
170 | int word_inx = byte_to_word_index (i); | |
171 | int bit_inx = byte_to_bit_index (i); | |
172 | ||
173 | *cp = (insn[word_inx] >> bit_inx) & 0xff; | |
174 | } | |
175 | ||
176 | return byte_count; | |
177 | } | |
178 | ||
179 | ||
180 | /* Inward conversion from byte stream to xtensa_insnbuf. See | |
181 | xtensa_insnbuf_to_chars for a discussion of why this is complicated | |
182 | by endianness. */ | |
183 | ||
184 | void | |
f075ee0c AM |
185 | xtensa_insnbuf_from_chars (xtensa_isa isa, |
186 | xtensa_insnbuf insn, | |
187 | const unsigned char *cp, | |
43cd72b9 BW |
188 | int num_chars) |
189 | { | |
190 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
191 | int max_size, insn_size, fence_post, start, increment, i; | |
192 | ||
193 | max_size = xtensa_isa_maxlength (isa); | |
194 | ||
195 | /* Decode the instruction length so we know how many bytes to read. */ | |
196 | insn_size = (intisa->length_decode_fn) (cp); | |
197 | if (insn_size == XTENSA_UNDEFINED) | |
198 | { | |
199 | /* This should never happen when the byte stream contains a | |
200 | valid instruction. Just read the maximum number of bytes.... */ | |
201 | insn_size = max_size; | |
202 | } | |
203 | ||
204 | if (num_chars == 0 || num_chars > insn_size) | |
205 | num_chars = insn_size; | |
206 | ||
207 | if (intisa->is_big_endian) | |
208 | { | |
209 | start = max_size - 1; | |
210 | increment = -1; | |
211 | } | |
212 | else | |
213 | { | |
214 | start = 0; | |
215 | increment = 1; | |
216 | } | |
217 | ||
218 | fence_post = start + (num_chars * increment); | |
219 | memset (insn, 0, xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word)); | |
220 | ||
221 | for (i = start; i != fence_post; i += increment, ++cp) | |
222 | { | |
223 | int word_inx = byte_to_word_index (i); | |
224 | int bit_inx = byte_to_bit_index (i); | |
225 | ||
226 | insn[word_inx] |= (*cp & 0xff) << bit_inx; | |
227 | } | |
228 | } | |
229 | ||
230 | ||
231 | \f | |
232 | /* ISA information. */ | |
233 | ||
234 | extern xtensa_isa_internal xtensa_modules; | |
235 | ||
e0001a05 | 236 | xtensa_isa |
43cd72b9 | 237 | xtensa_isa_init (xtensa_isa_status *errno_p, char **error_msg_p) |
e0001a05 | 238 | { |
43cd72b9 BW |
239 | xtensa_isa_internal *isa = &xtensa_modules; |
240 | int n, is_user; | |
241 | ||
242 | /* Set up the opcode name lookup table. */ | |
243 | isa->opname_lookup_table = | |
244 | bfd_malloc (isa->num_opcodes * sizeof (xtensa_lookup_entry)); | |
245 | CHECK_ALLOC_FOR_INIT (isa->opname_lookup_table, NULL, errno_p, error_msg_p); | |
246 | for (n = 0; n < isa->num_opcodes; n++) | |
247 | { | |
248 | isa->opname_lookup_table[n].key = isa->opcodes[n].name; | |
249 | isa->opname_lookup_table[n].u.opcode = n; | |
250 | } | |
251 | qsort (isa->opname_lookup_table, isa->num_opcodes, | |
252 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
e0001a05 | 253 | |
43cd72b9 BW |
254 | /* Set up the state name lookup table. */ |
255 | isa->state_lookup_table = | |
256 | bfd_malloc (isa->num_states * sizeof (xtensa_lookup_entry)); | |
257 | CHECK_ALLOC_FOR_INIT (isa->state_lookup_table, NULL, errno_p, error_msg_p); | |
258 | for (n = 0; n < isa->num_states; n++) | |
e0001a05 | 259 | { |
43cd72b9 BW |
260 | isa->state_lookup_table[n].key = isa->states[n].name; |
261 | isa->state_lookup_table[n].u.state = n; | |
262 | } | |
263 | qsort (isa->state_lookup_table, isa->num_states, | |
264 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
265 | ||
266 | /* Set up the sysreg name lookup table. */ | |
267 | isa->sysreg_lookup_table = | |
268 | bfd_malloc (isa->num_sysregs * sizeof (xtensa_lookup_entry)); | |
269 | CHECK_ALLOC_FOR_INIT (isa->sysreg_lookup_table, NULL, errno_p, error_msg_p); | |
270 | for (n = 0; n < isa->num_sysregs; n++) | |
271 | { | |
272 | isa->sysreg_lookup_table[n].key = isa->sysregs[n].name; | |
273 | isa->sysreg_lookup_table[n].u.sysreg = n; | |
274 | } | |
275 | qsort (isa->sysreg_lookup_table, isa->num_sysregs, | |
276 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
277 | ||
278 | /* Set up the user & system sysreg number tables. */ | |
279 | for (is_user = 0; is_user < 2; is_user++) | |
280 | { | |
281 | isa->sysreg_table[is_user] = | |
282 | bfd_malloc ((isa->max_sysreg_num[is_user] + 1) | |
283 | * sizeof (xtensa_sysreg)); | |
284 | CHECK_ALLOC_FOR_INIT (isa->sysreg_table[is_user], NULL, | |
285 | errno_p, error_msg_p); | |
286 | ||
287 | for (n = 0; n <= isa->max_sysreg_num[is_user]; n++) | |
288 | isa->sysreg_table[is_user][n] = XTENSA_UNDEFINED; | |
289 | } | |
290 | for (n = 0; n < isa->num_sysregs; n++) | |
291 | { | |
292 | xtensa_sysreg_internal *sreg = &isa->sysregs[n]; | |
293 | is_user = sreg->is_user; | |
294 | ||
295 | isa->sysreg_table[is_user][sreg->number] = n; | |
296 | } | |
297 | ||
298 | /* Set up the interface lookup table. */ | |
299 | isa->interface_lookup_table = | |
300 | bfd_malloc (isa->num_interfaces * sizeof (xtensa_lookup_entry)); | |
301 | CHECK_ALLOC_FOR_INIT (isa->interface_lookup_table, NULL, errno_p, | |
302 | error_msg_p); | |
303 | for (n = 0; n < isa->num_interfaces; n++) | |
304 | { | |
305 | isa->interface_lookup_table[n].key = isa->interfaces[n].name; | |
306 | isa->interface_lookup_table[n].u.intf = n; | |
307 | } | |
308 | qsort (isa->interface_lookup_table, isa->num_interfaces, | |
309 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
310 | ||
311 | /* Set up the funcUnit lookup table. */ | |
312 | isa->funcUnit_lookup_table = | |
313 | bfd_malloc (isa->num_funcUnits * sizeof (xtensa_lookup_entry)); | |
314 | CHECK_ALLOC_FOR_INIT (isa->funcUnit_lookup_table, NULL, errno_p, | |
315 | error_msg_p); | |
316 | for (n = 0; n < isa->num_funcUnits; n++) | |
317 | { | |
318 | isa->funcUnit_lookup_table[n].key = isa->funcUnits[n].name; | |
319 | isa->funcUnit_lookup_table[n].u.fun = n; | |
320 | } | |
321 | qsort (isa->funcUnit_lookup_table, isa->num_funcUnits, | |
322 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
323 | ||
324 | isa->insnbuf_size = ((isa->insn_size + sizeof (xtensa_insnbuf_word) - 1) / | |
325 | sizeof (xtensa_insnbuf_word)); | |
326 | ||
327 | return (xtensa_isa) isa; | |
328 | } | |
329 | ||
330 | ||
331 | void | |
332 | xtensa_isa_free (xtensa_isa isa) | |
333 | { | |
334 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
335 | int n; | |
336 | ||
337 | /* With this version of the code, the xtensa_isa structure is not | |
338 | dynamically allocated, so this function is not essential. Free | |
339 | the memory allocated by xtensa_isa_init and restore the xtensa_isa | |
340 | structure to its initial state. */ | |
341 | ||
342 | if (intisa->opname_lookup_table) | |
343 | { | |
344 | free (intisa->opname_lookup_table); | |
345 | intisa->opname_lookup_table = 0; | |
e0001a05 NC |
346 | } |
347 | ||
43cd72b9 | 348 | if (intisa->state_lookup_table) |
e0001a05 | 349 | { |
43cd72b9 BW |
350 | free (intisa->state_lookup_table); |
351 | intisa->state_lookup_table = 0; | |
352 | } | |
353 | ||
354 | if (intisa->sysreg_lookup_table) | |
355 | { | |
356 | free (intisa->sysreg_lookup_table); | |
357 | intisa->sysreg_lookup_table = 0; | |
358 | } | |
359 | for (n = 0; n < 2; n++) | |
360 | { | |
361 | if (intisa->sysreg_table[n]) | |
e0001a05 | 362 | { |
43cd72b9 BW |
363 | free (intisa->sysreg_table[n]); |
364 | intisa->sysreg_table[n] = 0; | |
e0001a05 NC |
365 | } |
366 | } | |
43cd72b9 BW |
367 | |
368 | if (intisa->interface_lookup_table) | |
369 | { | |
370 | free (intisa->interface_lookup_table); | |
371 | intisa->interface_lookup_table = 0; | |
372 | } | |
373 | ||
374 | if (intisa->funcUnit_lookup_table) | |
375 | { | |
376 | free (intisa->funcUnit_lookup_table); | |
377 | intisa->funcUnit_lookup_table = 0; | |
378 | } | |
379 | } | |
380 | ||
381 | ||
382 | int | |
383 | xtensa_isa_name_compare (const void *v1, const void *v2) | |
384 | { | |
385 | xtensa_lookup_entry *e1 = (xtensa_lookup_entry *) v1; | |
386 | xtensa_lookup_entry *e2 = (xtensa_lookup_entry *) v2; | |
387 | ||
388 | return strcasecmp (e1->key, e2->key); | |
389 | } | |
390 | ||
391 | ||
392 | int | |
393 | xtensa_isa_maxlength (xtensa_isa isa) | |
394 | { | |
395 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
396 | return intisa->insn_size; | |
397 | } | |
398 | ||
399 | ||
400 | int | |
f075ee0c | 401 | xtensa_isa_length_from_chars (xtensa_isa isa, const unsigned char *cp) |
43cd72b9 BW |
402 | { |
403 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
404 | return (intisa->length_decode_fn) (cp); | |
405 | } | |
406 | ||
407 | ||
408 | int | |
409 | xtensa_isa_num_pipe_stages (xtensa_isa isa) | |
410 | { | |
43cd72b9 BW |
411 | xtensa_opcode opcode; |
412 | xtensa_funcUnit_use *use; | |
1fbc7e7a | 413 | int num_opcodes, num_uses; |
43cd72b9 BW |
414 | int i, stage, max_stage = XTENSA_UNDEFINED; |
415 | ||
416 | num_opcodes = xtensa_isa_num_opcodes (isa); | |
417 | for (opcode = 0; opcode < num_opcodes; opcode++) | |
418 | { | |
419 | num_uses = xtensa_opcode_num_funcUnit_uses (isa, opcode); | |
420 | for (i = 0; i < num_uses; i++) | |
421 | { | |
422 | use = xtensa_opcode_funcUnit_use (isa, opcode, i); | |
423 | stage = use->stage; | |
424 | if (stage > max_stage) | |
425 | max_stage = stage; | |
426 | } | |
427 | } | |
428 | ||
429 | return max_stage + 1; | |
430 | } | |
431 | ||
432 | ||
433 | int | |
434 | xtensa_isa_num_formats (xtensa_isa isa) | |
435 | { | |
436 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
437 | return intisa->num_formats; | |
438 | } | |
439 | ||
440 | ||
441 | int | |
442 | xtensa_isa_num_opcodes (xtensa_isa isa) | |
443 | { | |
444 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
445 | return intisa->num_opcodes; | |
446 | } | |
447 | ||
448 | ||
449 | int | |
450 | xtensa_isa_num_regfiles (xtensa_isa isa) | |
451 | { | |
452 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
453 | return intisa->num_regfiles; | |
454 | } | |
455 | ||
456 | ||
457 | int | |
458 | xtensa_isa_num_states (xtensa_isa isa) | |
459 | { | |
460 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
461 | return intisa->num_states; | |
462 | } | |
463 | ||
464 | ||
465 | int | |
466 | xtensa_isa_num_sysregs (xtensa_isa isa) | |
467 | { | |
468 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
469 | return intisa->num_sysregs; | |
470 | } | |
471 | ||
472 | ||
473 | int | |
474 | xtensa_isa_num_interfaces (xtensa_isa isa) | |
475 | { | |
476 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
477 | return intisa->num_interfaces; | |
478 | } | |
479 | ||
480 | ||
481 | int | |
482 | xtensa_isa_num_funcUnits (xtensa_isa isa) | |
483 | { | |
484 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
485 | return intisa->num_funcUnits; | |
486 | } | |
487 | ||
488 | ||
489 | \f | |
490 | /* Instruction formats. */ | |
491 | ||
492 | ||
493 | #define CHECK_FORMAT(INTISA,FMT,ERRVAL) \ | |
494 | do { \ | |
495 | if ((FMT) < 0 || (FMT) >= (INTISA)->num_formats) \ | |
496 | { \ | |
497 | xtisa_errno = xtensa_isa_bad_format; \ | |
498 | strcpy (xtisa_error_msg, "invalid format specifier"); \ | |
499 | return (ERRVAL); \ | |
500 | } \ | |
501 | } while (0) | |
502 | ||
503 | ||
504 | #define CHECK_SLOT(INTISA,FMT,SLOT,ERRVAL) \ | |
505 | do { \ | |
506 | if ((SLOT) < 0 || (SLOT) >= (INTISA)->formats[FMT].num_slots) \ | |
507 | { \ | |
508 | xtisa_errno = xtensa_isa_bad_slot; \ | |
509 | strcpy (xtisa_error_msg, "invalid slot specifier"); \ | |
510 | return (ERRVAL); \ | |
511 | } \ | |
512 | } while (0) | |
513 | ||
514 | ||
515 | const char * | |
516 | xtensa_format_name (xtensa_isa isa, xtensa_format fmt) | |
517 | { | |
518 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
519 | CHECK_FORMAT (intisa, fmt, NULL); | |
520 | return intisa->formats[fmt].name; | |
521 | } | |
522 | ||
523 | ||
524 | xtensa_format | |
525 | xtensa_format_lookup (xtensa_isa isa, const char *fmtname) | |
526 | { | |
527 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
528 | int fmt; | |
529 | ||
530 | if (!fmtname || !*fmtname) | |
531 | { | |
532 | xtisa_errno = xtensa_isa_bad_format; | |
533 | strcpy (xtisa_error_msg, "invalid format name"); | |
534 | return XTENSA_UNDEFINED; | |
535 | } | |
536 | ||
537 | for (fmt = 0; fmt < intisa->num_formats; fmt++) | |
538 | { | |
539 | if (strcasecmp (fmtname, intisa->formats[fmt].name) == 0) | |
540 | return fmt; | |
541 | } | |
542 | ||
543 | xtisa_errno = xtensa_isa_bad_format; | |
544 | sprintf (xtisa_error_msg, "format \"%s\" not recognized", fmtname); | |
545 | return XTENSA_UNDEFINED; | |
546 | } | |
547 | ||
548 | ||
549 | xtensa_format | |
550 | xtensa_format_decode (xtensa_isa isa, const xtensa_insnbuf insn) | |
551 | { | |
552 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
553 | xtensa_format fmt; | |
554 | ||
555 | fmt = (intisa->format_decode_fn) (insn); | |
556 | if (fmt != XTENSA_UNDEFINED) | |
557 | return fmt; | |
558 | ||
559 | xtisa_errno = xtensa_isa_bad_format; | |
560 | strcpy (xtisa_error_msg, "cannot decode instruction format"); | |
561 | return XTENSA_UNDEFINED; | |
562 | } | |
563 | ||
564 | ||
565 | int | |
566 | xtensa_format_encode (xtensa_isa isa, xtensa_format fmt, xtensa_insnbuf insn) | |
567 | { | |
568 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
569 | CHECK_FORMAT (intisa, fmt, -1); | |
570 | (*intisa->formats[fmt].encode_fn) (insn); | |
571 | return 0; | |
572 | } | |
573 | ||
574 | ||
575 | int | |
576 | xtensa_format_length (xtensa_isa isa, xtensa_format fmt) | |
577 | { | |
578 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
579 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
580 | return intisa->formats[fmt].length; | |
581 | } | |
582 | ||
583 | ||
584 | int | |
585 | xtensa_format_num_slots (xtensa_isa isa, xtensa_format fmt) | |
586 | { | |
587 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
588 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
589 | return intisa->formats[fmt].num_slots; | |
590 | } | |
591 | ||
592 | ||
593 | xtensa_opcode | |
594 | xtensa_format_slot_nop_opcode (xtensa_isa isa, xtensa_format fmt, int slot) | |
595 | { | |
596 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
597 | int slot_id; | |
598 | ||
599 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
600 | CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED); | |
601 | ||
602 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
603 | return xtensa_opcode_lookup (isa, intisa->slots[slot_id].nop_name); | |
604 | } | |
605 | ||
606 | ||
607 | int | |
608 | xtensa_format_get_slot (xtensa_isa isa, xtensa_format fmt, int slot, | |
609 | const xtensa_insnbuf insn, xtensa_insnbuf slotbuf) | |
610 | { | |
611 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
612 | int slot_id; | |
613 | ||
614 | CHECK_FORMAT (intisa, fmt, -1); | |
615 | CHECK_SLOT (intisa, fmt, slot, -1); | |
616 | ||
617 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
618 | (*intisa->slots[slot_id].get_fn) (insn, slotbuf); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | ||
623 | int | |
624 | xtensa_format_set_slot (xtensa_isa isa, xtensa_format fmt, int slot, | |
625 | xtensa_insnbuf insn, const xtensa_insnbuf slotbuf) | |
626 | { | |
627 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
628 | int slot_id; | |
629 | ||
630 | CHECK_FORMAT (intisa, fmt, -1); | |
631 | CHECK_SLOT (intisa, fmt, slot, -1); | |
632 | ||
633 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
634 | (*intisa->slots[slot_id].set_fn) (insn, slotbuf); | |
635 | return 0; | |
636 | } | |
637 | ||
638 | ||
639 | \f | |
640 | /* Opcode information. */ | |
641 | ||
642 | ||
643 | #define CHECK_OPCODE(INTISA,OPC,ERRVAL) \ | |
644 | do { \ | |
645 | if ((OPC) < 0 || (OPC) >= (INTISA)->num_opcodes) \ | |
646 | { \ | |
647 | xtisa_errno = xtensa_isa_bad_opcode; \ | |
648 | strcpy (xtisa_error_msg, "invalid opcode specifier"); \ | |
649 | return (ERRVAL); \ | |
650 | } \ | |
651 | } while (0) | |
652 | ||
653 | ||
654 | xtensa_opcode | |
655 | xtensa_opcode_lookup (xtensa_isa isa, const char *opname) | |
656 | { | |
657 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1fbc7e7a | 658 | xtensa_lookup_entry entry, *result = 0; |
43cd72b9 BW |
659 | |
660 | if (!opname || !*opname) | |
661 | { | |
662 | xtisa_errno = xtensa_isa_bad_opcode; | |
663 | strcpy (xtisa_error_msg, "invalid opcode name"); | |
664 | return XTENSA_UNDEFINED; | |
665 | } | |
666 | ||
1fbc7e7a BW |
667 | if (intisa->num_opcodes != 0) |
668 | { | |
669 | entry.key = opname; | |
670 | result = bsearch (&entry, intisa->opname_lookup_table, | |
671 | intisa->num_opcodes, sizeof (xtensa_lookup_entry), | |
672 | xtensa_isa_name_compare); | |
673 | } | |
43cd72b9 BW |
674 | |
675 | if (!result) | |
676 | { | |
677 | xtisa_errno = xtensa_isa_bad_opcode; | |
678 | sprintf (xtisa_error_msg, "opcode \"%s\" not recognized", opname); | |
679 | return XTENSA_UNDEFINED; | |
680 | } | |
681 | ||
682 | return result->u.opcode; | |
683 | } | |
684 | ||
685 | ||
686 | xtensa_opcode | |
687 | xtensa_opcode_decode (xtensa_isa isa, xtensa_format fmt, int slot, | |
688 | const xtensa_insnbuf slotbuf) | |
689 | { | |
690 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
691 | int slot_id; | |
692 | xtensa_opcode opc; | |
693 | ||
694 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
695 | CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED); | |
696 | ||
697 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
698 | ||
699 | opc = (intisa->slots[slot_id].opcode_decode_fn) (slotbuf); | |
1fbc7e7a BW |
700 | if (opc != XTENSA_UNDEFINED) |
701 | return opc; | |
702 | ||
703 | xtisa_errno = xtensa_isa_bad_opcode; | |
704 | strcpy (xtisa_error_msg, "cannot decode opcode"); | |
705 | return XTENSA_UNDEFINED; | |
43cd72b9 BW |
706 | } |
707 | ||
708 | ||
709 | int | |
710 | xtensa_opcode_encode (xtensa_isa isa, xtensa_format fmt, int slot, | |
711 | xtensa_insnbuf slotbuf, xtensa_opcode opc) | |
712 | { | |
713 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
714 | int slot_id; | |
715 | xtensa_opcode_encode_fn encode_fn; | |
716 | ||
717 | CHECK_FORMAT (intisa, fmt, -1); | |
718 | CHECK_SLOT (intisa, fmt, slot, -1); | |
719 | CHECK_OPCODE (intisa, opc, -1); | |
720 | ||
721 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
722 | encode_fn = intisa->opcodes[opc].encode_fns[slot_id]; | |
723 | if (!encode_fn) | |
724 | { | |
725 | xtisa_errno = xtensa_isa_wrong_slot; | |
726 | sprintf (xtisa_error_msg, | |
727 | "opcode \"%s\" is not allowed in slot %d of format \"%s\"", | |
728 | intisa->opcodes[opc].name, slot, intisa->formats[fmt].name); | |
729 | return -1; | |
730 | } | |
731 | (*encode_fn) (slotbuf); | |
732 | return 0; | |
733 | } | |
734 | ||
735 | ||
736 | const char * | |
737 | xtensa_opcode_name (xtensa_isa isa, xtensa_opcode opc) | |
738 | { | |
739 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
740 | CHECK_OPCODE (intisa, opc, NULL); | |
741 | return intisa->opcodes[opc].name; | |
742 | } | |
743 | ||
744 | ||
745 | int | |
746 | xtensa_opcode_is_branch (xtensa_isa isa, xtensa_opcode opc) | |
747 | { | |
748 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
749 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
750 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_BRANCH) != 0) | |
751 | return 1; | |
752 | return 0; | |
753 | } | |
754 | ||
755 | ||
756 | int | |
757 | xtensa_opcode_is_jump (xtensa_isa isa, xtensa_opcode opc) | |
758 | { | |
759 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
760 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
761 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_JUMP) != 0) | |
762 | return 1; | |
763 | return 0; | |
764 | } | |
765 | ||
766 | ||
767 | int | |
768 | xtensa_opcode_is_loop (xtensa_isa isa, xtensa_opcode opc) | |
769 | { | |
770 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
771 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
772 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_LOOP) != 0) | |
773 | return 1; | |
774 | return 0; | |
775 | } | |
776 | ||
777 | ||
778 | int | |
779 | xtensa_opcode_is_call (xtensa_isa isa, xtensa_opcode opc) | |
780 | { | |
781 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
782 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
783 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_CALL) != 0) | |
784 | return 1; | |
785 | return 0; | |
786 | } | |
787 | ||
788 | ||
789 | int | |
790 | xtensa_opcode_num_operands (xtensa_isa isa, xtensa_opcode opc) | |
791 | { | |
792 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
793 | int iclass_id; | |
794 | ||
795 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
796 | iclass_id = intisa->opcodes[opc].iclass_id; | |
797 | return intisa->iclasses[iclass_id].num_operands; | |
798 | } | |
799 | ||
800 | ||
801 | int | |
802 | xtensa_opcode_num_stateOperands (xtensa_isa isa, xtensa_opcode opc) | |
803 | { | |
804 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
805 | int iclass_id; | |
806 | ||
807 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
808 | iclass_id = intisa->opcodes[opc].iclass_id; | |
809 | return intisa->iclasses[iclass_id].num_stateOperands; | |
810 | } | |
811 | ||
812 | ||
813 | int | |
814 | xtensa_opcode_num_interfaceOperands (xtensa_isa isa, xtensa_opcode opc) | |
815 | { | |
816 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
817 | int iclass_id; | |
818 | ||
819 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
820 | iclass_id = intisa->opcodes[opc].iclass_id; | |
821 | return intisa->iclasses[iclass_id].num_interfaceOperands; | |
822 | } | |
823 | ||
824 | ||
825 | int | |
826 | xtensa_opcode_num_funcUnit_uses (xtensa_isa isa, xtensa_opcode opc) | |
827 | { | |
828 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
829 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
830 | return intisa->opcodes[opc].num_funcUnit_uses; | |
831 | } | |
832 | ||
833 | ||
834 | xtensa_funcUnit_use * | |
835 | xtensa_opcode_funcUnit_use (xtensa_isa isa, xtensa_opcode opc, int u) | |
836 | { | |
837 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
838 | CHECK_OPCODE (intisa, opc, NULL); | |
839 | if (u < 0 || u >= intisa->opcodes[opc].num_funcUnit_uses) | |
840 | { | |
841 | xtisa_errno = xtensa_isa_bad_funcUnit; | |
842 | sprintf (xtisa_error_msg, "invalid functional unit use number (%d); " | |
843 | "opcode \"%s\" has %d", u, intisa->opcodes[opc].name, | |
844 | intisa->opcodes[opc].num_funcUnit_uses); | |
845 | return NULL; | |
846 | } | |
847 | return &intisa->opcodes[opc].funcUnit_uses[u]; | |
848 | } | |
849 | ||
850 | ||
851 | \f | |
852 | /* Operand information. */ | |
853 | ||
854 | ||
855 | #define CHECK_OPERAND(INTISA,OPC,ICLASS,OPND,ERRVAL) \ | |
856 | do { \ | |
857 | if ((OPND) < 0 || (OPND) >= (ICLASS)->num_operands) \ | |
858 | { \ | |
859 | xtisa_errno = xtensa_isa_bad_operand; \ | |
860 | sprintf (xtisa_error_msg, "invalid operand number (%d); " \ | |
861 | "opcode \"%s\" has %d operands", (OPND), \ | |
862 | (INTISA)->opcodes[(OPC)].name, (ICLASS)->num_operands); \ | |
863 | return (ERRVAL); \ | |
864 | } \ | |
865 | } while (0) | |
866 | ||
867 | ||
868 | static xtensa_operand_internal * | |
869 | get_operand (xtensa_isa_internal *intisa, xtensa_opcode opc, int opnd) | |
870 | { | |
871 | xtensa_iclass_internal *iclass; | |
872 | int iclass_id, operand_id; | |
873 | ||
874 | CHECK_OPCODE (intisa, opc, NULL); | |
875 | iclass_id = intisa->opcodes[opc].iclass_id; | |
876 | iclass = &intisa->iclasses[iclass_id]; | |
877 | CHECK_OPERAND (intisa, opc, iclass, opnd, NULL); | |
878 | operand_id = iclass->operands[opnd].u.operand_id; | |
879 | return &intisa->operands[operand_id]; | |
880 | } | |
881 | ||
882 | ||
883 | const char * | |
884 | xtensa_operand_name (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
885 | { | |
886 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
887 | xtensa_operand_internal *intop; | |
888 | ||
889 | intop = get_operand (intisa, opc, opnd); | |
890 | if (!intop) return NULL; | |
891 | return intop->name; | |
892 | } | |
893 | ||
894 | ||
895 | int | |
896 | xtensa_operand_is_visible (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
897 | { | |
898 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
899 | xtensa_iclass_internal *iclass; | |
900 | int iclass_id, operand_id; | |
901 | xtensa_operand_internal *intop; | |
902 | ||
903 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
904 | iclass_id = intisa->opcodes[opc].iclass_id; | |
905 | iclass = &intisa->iclasses[iclass_id]; | |
906 | CHECK_OPERAND (intisa, opc, iclass, opnd, XTENSA_UNDEFINED); | |
907 | ||
908 | /* Special case for "sout" operands. */ | |
909 | if (iclass->operands[opnd].inout == 's') | |
910 | return 0; | |
911 | ||
912 | operand_id = iclass->operands[opnd].u.operand_id; | |
913 | intop = &intisa->operands[operand_id]; | |
914 | ||
915 | if ((intop->flags & XTENSA_OPERAND_IS_INVISIBLE) == 0) | |
916 | return 1; | |
917 | return 0; | |
918 | } | |
919 | ||
920 | ||
921 | char | |
922 | xtensa_operand_inout (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
923 | { | |
924 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
925 | xtensa_iclass_internal *iclass; | |
926 | int iclass_id; | |
927 | char inout; | |
928 | ||
929 | CHECK_OPCODE (intisa, opc, 0); | |
930 | iclass_id = intisa->opcodes[opc].iclass_id; | |
931 | iclass = &intisa->iclasses[iclass_id]; | |
932 | CHECK_OPERAND (intisa, opc, iclass, opnd, 0); | |
933 | inout = iclass->operands[opnd].inout; | |
934 | ||
935 | /* Special case for "sout" operands. */ | |
936 | if (inout == 's') | |
937 | return 'o'; | |
938 | ||
939 | return inout; | |
940 | } | |
941 | ||
942 | ||
943 | int | |
944 | xtensa_operand_get_field (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
945 | xtensa_format fmt, int slot, | |
946 | const xtensa_insnbuf slotbuf, uint32 *valp) | |
947 | { | |
948 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
949 | xtensa_operand_internal *intop; | |
950 | int slot_id; | |
951 | xtensa_get_field_fn get_fn; | |
952 | ||
953 | intop = get_operand (intisa, opc, opnd); | |
954 | if (!intop) return -1; | |
955 | ||
956 | CHECK_FORMAT (intisa, fmt, -1); | |
957 | CHECK_SLOT (intisa, fmt, slot, -1); | |
958 | ||
959 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
960 | if (intop->field_id == XTENSA_UNDEFINED) | |
961 | { | |
962 | xtisa_errno = xtensa_isa_no_field; | |
963 | strcpy (xtisa_error_msg, "implicit operand has no field"); | |
964 | return -1; | |
965 | } | |
966 | get_fn = intisa->slots[slot_id].get_field_fns[intop->field_id]; | |
967 | if (!get_fn) | |
968 | { | |
969 | xtisa_errno = xtensa_isa_wrong_slot; | |
970 | sprintf (xtisa_error_msg, | |
971 | "operand \"%s\" does not exist in slot %d of format \"%s\"", | |
972 | intop->name, slot, intisa->formats[fmt].name); | |
973 | return -1; | |
974 | } | |
975 | *valp = (*get_fn) (slotbuf); | |
976 | return 0; | |
977 | } | |
978 | ||
979 | ||
980 | int | |
981 | xtensa_operand_set_field (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
982 | xtensa_format fmt, int slot, | |
983 | xtensa_insnbuf slotbuf, uint32 val) | |
984 | { | |
985 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
986 | xtensa_operand_internal *intop; | |
987 | int slot_id; | |
988 | xtensa_set_field_fn set_fn; | |
989 | ||
990 | intop = get_operand (intisa, opc, opnd); | |
991 | if (!intop) return -1; | |
992 | ||
993 | CHECK_FORMAT (intisa, fmt, -1); | |
994 | CHECK_SLOT (intisa, fmt, slot, -1); | |
995 | ||
996 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
997 | if (intop->field_id == XTENSA_UNDEFINED) | |
998 | { | |
999 | xtisa_errno = xtensa_isa_no_field; | |
1000 | strcpy (xtisa_error_msg, "implicit operand has no field"); | |
1001 | return -1; | |
1002 | } | |
1003 | set_fn = intisa->slots[slot_id].set_field_fns[intop->field_id]; | |
1004 | if (!set_fn) | |
1005 | { | |
1006 | xtisa_errno = xtensa_isa_wrong_slot; | |
1007 | sprintf (xtisa_error_msg, | |
1008 | "operand \"%s\" does not exist in slot %d of format \"%s\"", | |
1009 | intop->name, slot, intisa->formats[fmt].name); | |
1010 | return -1; | |
1011 | } | |
1012 | (*set_fn) (slotbuf, val); | |
1013 | return 0; | |
e0001a05 NC |
1014 | } |
1015 | ||
e0001a05 | 1016 | |
43cd72b9 BW |
1017 | int |
1018 | xtensa_operand_encode (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
1019 | uint32 *valp) | |
e0001a05 | 1020 | { |
43cd72b9 BW |
1021 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1022 | xtensa_operand_internal *intop; | |
1023 | uint32 test_val, orig_val; | |
e0001a05 | 1024 | |
43cd72b9 BW |
1025 | intop = get_operand (intisa, opc, opnd); |
1026 | if (!intop) return -1; | |
e0001a05 | 1027 | |
43cd72b9 | 1028 | if (!intop->encode) |
e0001a05 | 1029 | { |
43cd72b9 BW |
1030 | /* This is a default operand for a field. How can we tell if the |
1031 | value fits in the field? Write the value into the field, | |
1032 | read it back, and then make sure we get the same value. */ | |
e0001a05 | 1033 | |
43cd72b9 BW |
1034 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1035 | static xtensa_insnbuf tmpbuf = 0; | |
1036 | int slot_id; | |
e0001a05 | 1037 | |
43cd72b9 | 1038 | if (!tmpbuf) |
e0001a05 | 1039 | { |
43cd72b9 BW |
1040 | tmpbuf = xtensa_insnbuf_alloc (isa); |
1041 | CHECK_ALLOC (tmpbuf, -1); | |
e0001a05 | 1042 | } |
43cd72b9 BW |
1043 | |
1044 | /* A default operand is always associated with a field, | |
1045 | but check just to be sure.... */ | |
1046 | if (intop->field_id == XTENSA_UNDEFINED) | |
e0001a05 | 1047 | { |
43cd72b9 BW |
1048 | xtisa_errno = xtensa_isa_internal_error; |
1049 | strcpy (xtisa_error_msg, "operand has no field"); | |
1050 | return -1; | |
e0001a05 NC |
1051 | } |
1052 | ||
43cd72b9 BW |
1053 | /* Find some slot that includes the field. */ |
1054 | for (slot_id = 0; slot_id < intisa->num_slots; slot_id++) | |
e0001a05 | 1055 | { |
43cd72b9 BW |
1056 | xtensa_get_field_fn get_fn = |
1057 | intisa->slots[slot_id].get_field_fns[intop->field_id]; | |
1058 | xtensa_set_field_fn set_fn = | |
1059 | intisa->slots[slot_id].set_field_fns[intop->field_id]; | |
1060 | ||
1061 | if (get_fn && set_fn) | |
e0001a05 | 1062 | { |
43cd72b9 BW |
1063 | (*set_fn) (tmpbuf, *valp); |
1064 | return ((*get_fn) (tmpbuf) != *valp); | |
e0001a05 NC |
1065 | } |
1066 | } | |
43cd72b9 BW |
1067 | |
1068 | /* Couldn't find any slot containing the field.... */ | |
1069 | xtisa_errno = xtensa_isa_no_field; | |
1070 | strcpy (xtisa_error_msg, "field does not exist in any slot"); | |
1071 | return -1; | |
1072 | } | |
1073 | ||
1074 | /* Encode the value. In some cases, the encoding function may detect | |
1075 | errors, but most of the time the only way to determine if the value | |
1076 | was successfully encoded is to decode it and check if it matches | |
1077 | the original value. */ | |
1078 | orig_val = *valp; | |
1079 | if ((*intop->encode) (valp) || | |
1080 | (test_val = *valp, (*intop->decode) (&test_val)) || | |
1081 | test_val != orig_val) | |
1082 | { | |
1083 | xtisa_errno = xtensa_isa_bad_value; | |
1084 | sprintf (xtisa_error_msg, "cannot encode operand value 0x%08x", *valp); | |
1085 | return -1; | |
e0001a05 NC |
1086 | } |
1087 | ||
43cd72b9 | 1088 | return 0; |
e0001a05 NC |
1089 | } |
1090 | ||
1091 | ||
43cd72b9 BW |
1092 | int |
1093 | xtensa_operand_decode (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
1094 | uint32 *valp) | |
e0001a05 | 1095 | { |
43cd72b9 BW |
1096 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1097 | xtensa_operand_internal *intop; | |
e0001a05 | 1098 | |
43cd72b9 BW |
1099 | intop = get_operand (intisa, opc, opnd); |
1100 | if (!intop) return -1; | |
e0001a05 | 1101 | |
43cd72b9 BW |
1102 | /* Use identity function for "default" operands. */ |
1103 | if (!intop->decode) | |
e0001a05 NC |
1104 | return 0; |
1105 | ||
43cd72b9 | 1106 | if ((*intop->decode) (valp)) |
e0001a05 | 1107 | { |
43cd72b9 BW |
1108 | xtisa_errno = xtensa_isa_bad_value; |
1109 | sprintf (xtisa_error_msg, "cannot decode operand value 0x%08x", *valp); | |
1110 | return -1; | |
e0001a05 | 1111 | } |
43cd72b9 BW |
1112 | return 0; |
1113 | } | |
e0001a05 | 1114 | |
e0001a05 | 1115 | |
43cd72b9 BW |
1116 | int |
1117 | xtensa_operand_is_register (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
1118 | { | |
1119 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1120 | xtensa_operand_internal *intop; | |
e0001a05 | 1121 | |
43cd72b9 BW |
1122 | intop = get_operand (intisa, opc, opnd); |
1123 | if (!intop) return XTENSA_UNDEFINED; | |
e0001a05 | 1124 | |
43cd72b9 BW |
1125 | if ((intop->flags & XTENSA_OPERAND_IS_REGISTER) != 0) |
1126 | return 1; | |
1127 | return 0; | |
1128 | } | |
e0001a05 | 1129 | |
e0001a05 | 1130 | |
43cd72b9 BW |
1131 | xtensa_regfile |
1132 | xtensa_operand_regfile (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
1133 | { | |
1134 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1135 | xtensa_operand_internal *intop; | |
e0001a05 | 1136 | |
43cd72b9 BW |
1137 | intop = get_operand (intisa, opc, opnd); |
1138 | if (!intop) return XTENSA_UNDEFINED; | |
e0001a05 | 1139 | |
43cd72b9 | 1140 | return intop->regfile; |
e0001a05 NC |
1141 | } |
1142 | ||
1143 | ||
43cd72b9 BW |
1144 | int |
1145 | xtensa_operand_num_regs (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
e0001a05 | 1146 | { |
43cd72b9 BW |
1147 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1148 | xtensa_operand_internal *intop; | |
e0001a05 | 1149 | |
43cd72b9 BW |
1150 | intop = get_operand (intisa, opc, opnd); |
1151 | if (!intop) return XTENSA_UNDEFINED; | |
1152 | ||
1153 | return intop->num_regs; | |
e0001a05 NC |
1154 | } |
1155 | ||
1156 | ||
1157 | int | |
43cd72b9 | 1158 | xtensa_operand_is_known_reg (xtensa_isa isa, xtensa_opcode opc, int opnd) |
e0001a05 NC |
1159 | { |
1160 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1161 | xtensa_operand_internal *intop; |
1162 | ||
1163 | intop = get_operand (intisa, opc, opnd); | |
1164 | if (!intop) return XTENSA_UNDEFINED; | |
1165 | ||
1166 | if ((intop->flags & XTENSA_OPERAND_IS_UNKNOWN) == 0) | |
1167 | return 1; | |
1168 | return 0; | |
e0001a05 NC |
1169 | } |
1170 | ||
1171 | ||
43cd72b9 BW |
1172 | int |
1173 | xtensa_operand_is_PCrelative (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
e0001a05 NC |
1174 | { |
1175 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1176 | xtensa_operand_internal *intop; |
1177 | ||
1178 | intop = get_operand (intisa, opc, opnd); | |
1179 | if (!intop) return XTENSA_UNDEFINED; | |
1180 | ||
1181 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) != 0) | |
1182 | return 1; | |
1183 | return 0; | |
e0001a05 NC |
1184 | } |
1185 | ||
1186 | ||
1187 | int | |
43cd72b9 BW |
1188 | xtensa_operand_do_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd, |
1189 | uint32 *valp, uint32 pc) | |
e0001a05 NC |
1190 | { |
1191 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1192 | xtensa_operand_internal *intop; |
1193 | ||
1194 | intop = get_operand (intisa, opc, opnd); | |
1195 | if (!intop) return -1; | |
1196 | ||
1197 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0) | |
1198 | return 0; | |
1199 | ||
1200 | if (!intop->do_reloc) | |
1201 | { | |
1202 | xtisa_errno = xtensa_isa_internal_error; | |
1203 | strcpy (xtisa_error_msg, "operand missing do_reloc function"); | |
1204 | return -1; | |
1205 | } | |
1206 | ||
1207 | if ((*intop->do_reloc) (valp, pc)) | |
1208 | { | |
1209 | xtisa_errno = xtensa_isa_bad_value; | |
1210 | sprintf (xtisa_error_msg, | |
1211 | "do_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc); | |
1212 | return -1; | |
1213 | } | |
1214 | ||
1215 | return 0; | |
e0001a05 NC |
1216 | } |
1217 | ||
1218 | ||
1219 | int | |
43cd72b9 BW |
1220 | xtensa_operand_undo_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd, |
1221 | uint32 *valp, uint32 pc) | |
e0001a05 | 1222 | { |
43cd72b9 BW |
1223 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1224 | xtensa_operand_internal *intop; | |
1225 | ||
1226 | intop = get_operand (intisa, opc, opnd); | |
1227 | if (!intop) return -1; | |
1228 | ||
1229 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0) | |
1230 | return 0; | |
1231 | ||
1232 | if (!intop->undo_reloc) | |
1233 | { | |
1234 | xtisa_errno = xtensa_isa_internal_error; | |
1235 | strcpy (xtisa_error_msg, "operand missing undo_reloc function"); | |
1236 | return -1; | |
1237 | } | |
1238 | ||
1239 | if ((*intop->undo_reloc) (valp, pc)) | |
1240 | { | |
1241 | xtisa_errno = xtensa_isa_bad_value; | |
1242 | sprintf (xtisa_error_msg, | |
1243 | "undo_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc); | |
1244 | return -1; | |
1245 | } | |
1246 | ||
1247 | return 0; | |
e0001a05 NC |
1248 | } |
1249 | ||
1250 | ||
43cd72b9 BW |
1251 | \f |
1252 | /* State Operands. */ | |
1253 | ||
1254 | ||
1255 | #define CHECK_STATE_OPERAND(INTISA,OPC,ICLASS,STOP,ERRVAL) \ | |
1256 | do { \ | |
1257 | if ((STOP) < 0 || (STOP) >= (ICLASS)->num_stateOperands) \ | |
1258 | { \ | |
1259 | xtisa_errno = xtensa_isa_bad_operand; \ | |
1260 | sprintf (xtisa_error_msg, "invalid state operand number (%d); " \ | |
1261 | "opcode \"%s\" has %d state operands", (STOP), \ | |
1262 | (INTISA)->opcodes[(OPC)].name, (ICLASS)->num_stateOperands); \ | |
1263 | return (ERRVAL); \ | |
1264 | } \ | |
1265 | } while (0) | |
1266 | ||
1267 | ||
1268 | xtensa_state | |
1269 | xtensa_stateOperand_state (xtensa_isa isa, xtensa_opcode opc, int stOp) | |
e0001a05 NC |
1270 | { |
1271 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1272 | xtensa_iclass_internal *iclass; |
1273 | int iclass_id; | |
1274 | ||
1275 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
1276 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1277 | iclass = &intisa->iclasses[iclass_id]; | |
1278 | CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, XTENSA_UNDEFINED); | |
1279 | return iclass->stateOperands[stOp].u.state; | |
e0001a05 NC |
1280 | } |
1281 | ||
1282 | ||
43cd72b9 BW |
1283 | char |
1284 | xtensa_stateOperand_inout (xtensa_isa isa, xtensa_opcode opc, int stOp) | |
e0001a05 NC |
1285 | { |
1286 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1287 | xtensa_iclass_internal *iclass; |
1288 | int iclass_id; | |
1289 | ||
1290 | CHECK_OPCODE (intisa, opc, 0); | |
1291 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1292 | iclass = &intisa->iclasses[iclass_id]; | |
1293 | CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, 0); | |
1294 | return iclass->stateOperands[stOp].inout; | |
1295 | } | |
e0001a05 | 1296 | |
1fbc7e7a | 1297 | |
43cd72b9 BW |
1298 | \f |
1299 | /* Interface Operands. */ | |
1300 | ||
1301 | ||
1302 | #define CHECK_INTERFACE_OPERAND(INTISA,OPC,ICLASS,IFOP,ERRVAL) \ | |
1303 | do { \ | |
1304 | if ((IFOP) < 0 || (IFOP) >= (ICLASS)->num_interfaceOperands) \ | |
1305 | { \ | |
1306 | xtisa_errno = xtensa_isa_bad_operand; \ | |
1307 | sprintf (xtisa_error_msg, "invalid interface operand number (%d); " \ | |
1308 | "opcode \"%s\" has %d interface operands", (IFOP), \ | |
1309 | (INTISA)->opcodes[(OPC)].name, \ | |
1310 | (ICLASS)->num_interfaceOperands); \ | |
1311 | return (ERRVAL); \ | |
1312 | } \ | |
1313 | } while (0) | |
1314 | ||
1315 | ||
1316 | xtensa_interface | |
1317 | xtensa_interfaceOperand_interface (xtensa_isa isa, xtensa_opcode opc, | |
1318 | int ifOp) | |
1319 | { | |
1320 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1321 | xtensa_iclass_internal *iclass; | |
1322 | int iclass_id; | |
1323 | ||
1324 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
1325 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1326 | iclass = &intisa->iclasses[iclass_id]; | |
1327 | CHECK_INTERFACE_OPERAND (intisa, opc, iclass, ifOp, XTENSA_UNDEFINED); | |
1328 | return iclass->interfaceOperands[ifOp]; | |
e0001a05 NC |
1329 | } |
1330 | ||
1331 | ||
43cd72b9 BW |
1332 | \f |
1333 | /* Register Files. */ | |
1334 | ||
1335 | ||
1336 | #define CHECK_REGFILE(INTISA,RF,ERRVAL) \ | |
1337 | do { \ | |
1338 | if ((RF) < 0 || (RF) >= (INTISA)->num_regfiles) \ | |
1339 | { \ | |
1340 | xtisa_errno = xtensa_isa_bad_regfile; \ | |
1341 | strcpy (xtisa_error_msg, "invalid regfile specifier"); \ | |
1342 | return (ERRVAL); \ | |
1343 | } \ | |
1344 | } while (0) | |
1345 | ||
1346 | ||
1347 | xtensa_regfile | |
1348 | xtensa_regfile_lookup (xtensa_isa isa, const char *name) | |
e0001a05 NC |
1349 | { |
1350 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1351 | int n; |
1352 | ||
1353 | if (!name || !*name) | |
1354 | { | |
1355 | xtisa_errno = xtensa_isa_bad_regfile; | |
1356 | strcpy (xtisa_error_msg, "invalid regfile name"); | |
1357 | return XTENSA_UNDEFINED; | |
1358 | } | |
1359 | ||
1360 | /* The expected number of regfiles is small; use a linear search. */ | |
1361 | for (n = 0; n < intisa->num_regfiles; n++) | |
1362 | { | |
1363 | if (!strcmp (intisa->regfiles[n].name, name)) | |
1364 | return n; | |
1365 | } | |
1366 | ||
1367 | xtisa_errno = xtensa_isa_bad_regfile; | |
1368 | sprintf (xtisa_error_msg, "regfile \"%s\" not recognized", name); | |
e0001a05 NC |
1369 | return XTENSA_UNDEFINED; |
1370 | } | |
1371 | ||
1372 | ||
43cd72b9 BW |
1373 | xtensa_regfile |
1374 | xtensa_regfile_lookup_shortname (xtensa_isa isa, const char *shortname) | |
e0001a05 NC |
1375 | { |
1376 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
e0001a05 NC |
1377 | int n; |
1378 | ||
43cd72b9 BW |
1379 | if (!shortname || !*shortname) |
1380 | { | |
1381 | xtisa_errno = xtensa_isa_bad_regfile; | |
1382 | strcpy (xtisa_error_msg, "invalid regfile shortname"); | |
1383 | return XTENSA_UNDEFINED; | |
1384 | } | |
e0001a05 | 1385 | |
43cd72b9 BW |
1386 | /* The expected number of regfiles is small; use a linear search. */ |
1387 | for (n = 0; n < intisa->num_regfiles; n++) | |
1388 | { | |
1389 | /* Ignore regfile views since they always have the same shortnames | |
1390 | as their parents. */ | |
1391 | if (intisa->regfiles[n].parent != n) | |
1392 | continue; | |
1393 | if (!strcmp (intisa->regfiles[n].shortname, shortname)) | |
1394 | return n; | |
1395 | } | |
e0001a05 | 1396 | |
43cd72b9 BW |
1397 | xtisa_errno = xtensa_isa_bad_regfile; |
1398 | sprintf (xtisa_error_msg, "regfile shortname \"%s\" not recognized", | |
1399 | shortname); | |
1400 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1401 | } |
1402 | ||
1403 | ||
1404 | const char * | |
43cd72b9 | 1405 | xtensa_regfile_name (xtensa_isa isa, xtensa_regfile rf) |
e0001a05 NC |
1406 | { |
1407 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1408 | CHECK_REGFILE (intisa, rf, NULL); |
1409 | return intisa->regfiles[rf].name; | |
e0001a05 NC |
1410 | } |
1411 | ||
1412 | ||
43cd72b9 BW |
1413 | const char * |
1414 | xtensa_regfile_shortname (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1415 | { |
1416 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1417 | CHECK_REGFILE (intisa, rf, NULL); |
1418 | return intisa->regfiles[rf].shortname; | |
e0001a05 NC |
1419 | } |
1420 | ||
1421 | ||
43cd72b9 BW |
1422 | xtensa_regfile |
1423 | xtensa_regfile_view_parent (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1424 | { |
1425 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1426 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1427 | return intisa->regfiles[rf].parent; | |
e0001a05 NC |
1428 | } |
1429 | ||
1430 | ||
1431 | int | |
43cd72b9 | 1432 | xtensa_regfile_num_bits (xtensa_isa isa, xtensa_regfile rf) |
e0001a05 NC |
1433 | { |
1434 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1435 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1436 | return intisa->regfiles[rf].num_bits; | |
e0001a05 NC |
1437 | } |
1438 | ||
1439 | ||
43cd72b9 BW |
1440 | int |
1441 | xtensa_regfile_num_entries (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1442 | { |
1443 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1444 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1445 | return intisa->regfiles[rf].num_entries; | |
e0001a05 NC |
1446 | } |
1447 | ||
1fbc7e7a | 1448 | |
43cd72b9 BW |
1449 | \f |
1450 | /* Processor States. */ | |
e0001a05 | 1451 | |
e0001a05 | 1452 | |
43cd72b9 BW |
1453 | #define CHECK_STATE(INTISA,ST,ERRVAL) \ |
1454 | do { \ | |
1455 | if ((ST) < 0 || (ST) >= (INTISA)->num_states) \ | |
1456 | { \ | |
1457 | xtisa_errno = xtensa_isa_bad_state; \ | |
1458 | strcpy (xtisa_error_msg, "invalid state specifier"); \ | |
1459 | return (ERRVAL); \ | |
1460 | } \ | |
1461 | } while (0) | |
e0001a05 NC |
1462 | |
1463 | ||
43cd72b9 BW |
1464 | xtensa_state |
1465 | xtensa_state_lookup (xtensa_isa isa, const char *name) | |
e0001a05 | 1466 | { |
43cd72b9 | 1467 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1fbc7e7a | 1468 | xtensa_lookup_entry entry, *result = 0; |
e0001a05 | 1469 | |
43cd72b9 BW |
1470 | if (!name || !*name) |
1471 | { | |
1472 | xtisa_errno = xtensa_isa_bad_state; | |
1473 | strcpy (xtisa_error_msg, "invalid state name"); | |
1474 | return XTENSA_UNDEFINED; | |
1475 | } | |
e0001a05 | 1476 | |
1fbc7e7a BW |
1477 | if (intisa->num_states != 0) |
1478 | { | |
1479 | entry.key = name; | |
1480 | result = bsearch (&entry, intisa->state_lookup_table, intisa->num_states, | |
1481 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
1482 | } | |
e0001a05 | 1483 | |
43cd72b9 BW |
1484 | if (!result) |
1485 | { | |
1486 | xtisa_errno = xtensa_isa_bad_state; | |
1487 | sprintf (xtisa_error_msg, "state \"%s\" not recognized", name); | |
1488 | return XTENSA_UNDEFINED; | |
1489 | } | |
e0001a05 | 1490 | |
43cd72b9 | 1491 | return result->u.state; |
e0001a05 NC |
1492 | } |
1493 | ||
1494 | ||
43cd72b9 BW |
1495 | const char * |
1496 | xtensa_state_name (xtensa_isa isa, xtensa_state st) | |
e0001a05 | 1497 | { |
43cd72b9 BW |
1498 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1499 | CHECK_STATE (intisa, st, NULL); | |
1500 | return intisa->states[st].name; | |
e0001a05 NC |
1501 | } |
1502 | ||
1503 | ||
43cd72b9 BW |
1504 | int |
1505 | xtensa_state_num_bits (xtensa_isa isa, xtensa_state st) | |
e0001a05 | 1506 | { |
43cd72b9 BW |
1507 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1508 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1509 | return intisa->states[st].num_bits; | |
e0001a05 NC |
1510 | } |
1511 | ||
1512 | ||
1513 | int | |
43cd72b9 | 1514 | xtensa_state_is_exported (xtensa_isa isa, xtensa_state st) |
e0001a05 | 1515 | { |
43cd72b9 BW |
1516 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1517 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1518 | if ((intisa->states[st].flags & XTENSA_STATE_IS_EXPORTED) != 0) | |
1519 | return 1; | |
1520 | return 0; | |
e0001a05 NC |
1521 | } |
1522 | ||
1fbc7e7a | 1523 | |
43cd72b9 BW |
1524 | \f |
1525 | /* Sysregs. */ | |
1526 | ||
1527 | ||
1528 | #define CHECK_SYSREG(INTISA,SYSREG,ERRVAL) \ | |
1529 | do { \ | |
1530 | if ((SYSREG) < 0 || (SYSREG) >= (INTISA)->num_sysregs) \ | |
1531 | { \ | |
1532 | xtisa_errno = xtensa_isa_bad_sysreg; \ | |
1533 | strcpy (xtisa_error_msg, "invalid sysreg specifier"); \ | |
1534 | return (ERRVAL); \ | |
1535 | } \ | |
1536 | } while (0) | |
e0001a05 | 1537 | |
43cd72b9 BW |
1538 | |
1539 | xtensa_sysreg | |
1540 | xtensa_sysreg_lookup (xtensa_isa isa, int num, int is_user) | |
e0001a05 | 1541 | { |
43cd72b9 BW |
1542 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1543 | ||
1544 | if (is_user != 0) | |
1545 | is_user = 1; | |
1546 | ||
1547 | if (num < 0 || num > intisa->max_sysreg_num[is_user] | |
1548 | || intisa->sysreg_table[is_user][num] == XTENSA_UNDEFINED) | |
1549 | { | |
1550 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1551 | strcpy (xtisa_error_msg, "sysreg not recognized"); | |
1552 | return XTENSA_UNDEFINED; | |
1553 | } | |
1554 | ||
1555 | return intisa->sysreg_table[is_user][num]; | |
e0001a05 NC |
1556 | } |
1557 | ||
1558 | ||
43cd72b9 BW |
1559 | xtensa_sysreg |
1560 | xtensa_sysreg_lookup_name (xtensa_isa isa, const char *name) | |
e0001a05 | 1561 | { |
43cd72b9 | 1562 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1fbc7e7a | 1563 | xtensa_lookup_entry entry, *result = 0; |
e0001a05 | 1564 | |
43cd72b9 BW |
1565 | if (!name || !*name) |
1566 | { | |
1567 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1568 | strcpy (xtisa_error_msg, "invalid sysreg name"); | |
1569 | return XTENSA_UNDEFINED; | |
1570 | } | |
e0001a05 | 1571 | |
1fbc7e7a BW |
1572 | if (intisa->num_sysregs != 0) |
1573 | { | |
1574 | entry.key = name; | |
1575 | result = bsearch (&entry, intisa->sysreg_lookup_table, | |
1576 | intisa->num_sysregs, sizeof (xtensa_lookup_entry), | |
1577 | xtensa_isa_name_compare); | |
1578 | } | |
e0001a05 | 1579 | |
43cd72b9 BW |
1580 | if (!result) |
1581 | { | |
1582 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1583 | sprintf (xtisa_error_msg, "sysreg \"%s\" not recognized", name); | |
1584 | return XTENSA_UNDEFINED; | |
1585 | } | |
1586 | ||
1587 | return result->u.sysreg; | |
e0001a05 NC |
1588 | } |
1589 | ||
1590 | ||
43cd72b9 BW |
1591 | const char * |
1592 | xtensa_sysreg_name (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1593 | { |
43cd72b9 BW |
1594 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1595 | CHECK_SYSREG (intisa, sysreg, NULL); | |
1596 | return intisa->sysregs[sysreg].name; | |
e0001a05 NC |
1597 | } |
1598 | ||
1599 | ||
43cd72b9 BW |
1600 | int |
1601 | xtensa_sysreg_number (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1602 | { |
43cd72b9 BW |
1603 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1604 | CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED); | |
1605 | return intisa->sysregs[sysreg].number; | |
e0001a05 NC |
1606 | } |
1607 | ||
1608 | ||
43cd72b9 BW |
1609 | int |
1610 | xtensa_sysreg_is_user (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1611 | { |
43cd72b9 BW |
1612 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1613 | CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED); | |
1614 | if (intisa->sysregs[sysreg].is_user) | |
1615 | return 1; | |
1616 | return 0; | |
e0001a05 NC |
1617 | } |
1618 | ||
1fbc7e7a | 1619 | |
43cd72b9 BW |
1620 | \f |
1621 | /* Interfaces. */ | |
e0001a05 | 1622 | |
e0001a05 | 1623 | |
43cd72b9 BW |
1624 | #define CHECK_INTERFACE(INTISA,INTF,ERRVAL) \ |
1625 | do { \ | |
1626 | if ((INTF) < 0 || (INTF) >= (INTISA)->num_interfaces) \ | |
1627 | { \ | |
1628 | xtisa_errno = xtensa_isa_bad_interface; \ | |
1629 | strcpy (xtisa_error_msg, "invalid interface specifier"); \ | |
1630 | return (ERRVAL); \ | |
1631 | } \ | |
1632 | } while (0) | |
1633 | ||
1634 | ||
1635 | xtensa_interface | |
1636 | xtensa_interface_lookup (xtensa_isa isa, const char *ifname) | |
e0001a05 NC |
1637 | { |
1638 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1fbc7e7a | 1639 | xtensa_lookup_entry entry, *result = 0; |
e0001a05 | 1640 | |
43cd72b9 | 1641 | if (!ifname || !*ifname) |
e0001a05 | 1642 | { |
43cd72b9 BW |
1643 | xtisa_errno = xtensa_isa_bad_interface; |
1644 | strcpy (xtisa_error_msg, "invalid interface name"); | |
1645 | return XTENSA_UNDEFINED; | |
e0001a05 | 1646 | } |
43cd72b9 | 1647 | |
1fbc7e7a BW |
1648 | if (intisa->num_interfaces != 0) |
1649 | { | |
1650 | entry.key = ifname; | |
1651 | result = bsearch (&entry, intisa->interface_lookup_table, | |
1652 | intisa->num_interfaces, sizeof (xtensa_lookup_entry), | |
1653 | xtensa_isa_name_compare); | |
1654 | } | |
43cd72b9 BW |
1655 | |
1656 | if (!result) | |
e0001a05 | 1657 | { |
43cd72b9 BW |
1658 | xtisa_errno = xtensa_isa_bad_interface; |
1659 | sprintf (xtisa_error_msg, "interface \"%s\" not recognized", ifname); | |
1660 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1661 | } |
1662 | ||
43cd72b9 BW |
1663 | return result->u.intf; |
1664 | } | |
e0001a05 | 1665 | |
e0001a05 | 1666 | |
43cd72b9 BW |
1667 | const char * |
1668 | xtensa_interface_name (xtensa_isa isa, xtensa_interface intf) | |
1669 | { | |
1670 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1671 | CHECK_INTERFACE (intisa, intf, NULL); | |
1672 | return intisa->interfaces[intf].name; | |
1673 | } | |
e0001a05 | 1674 | |
43cd72b9 BW |
1675 | |
1676 | int | |
1677 | xtensa_interface_num_bits (xtensa_isa isa, xtensa_interface intf) | |
1678 | { | |
1679 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1680 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1681 | return intisa->interfaces[intf].num_bits; | |
e0001a05 NC |
1682 | } |
1683 | ||
43cd72b9 BW |
1684 | |
1685 | char | |
1686 | xtensa_interface_inout (xtensa_isa isa, xtensa_interface intf) | |
e0001a05 NC |
1687 | { |
1688 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1689 | CHECK_INTERFACE (intisa, intf, 0); |
1690 | return intisa->interfaces[intf].inout; | |
1691 | } | |
e0001a05 | 1692 | |
43cd72b9 BW |
1693 | |
1694 | int | |
1695 | xtensa_interface_has_side_effect (xtensa_isa isa, xtensa_interface intf) | |
1696 | { | |
1697 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1698 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1699 | if ((intisa->interfaces[intf].flags & XTENSA_INTERFACE_HAS_SIDE_EFFECT) != 0) | |
1700 | return 1; | |
1701 | return 0; | |
1702 | } | |
1703 | ||
a1ace8d8 BW |
1704 | |
1705 | int | |
1706 | xtensa_interface_class_id (xtensa_isa isa, xtensa_interface intf) | |
1707 | { | |
1708 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1709 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1710 | return intisa->interfaces[intf].class_id; | |
1711 | } | |
1712 | ||
1fbc7e7a | 1713 | |
43cd72b9 BW |
1714 | \f |
1715 | /* Functional Units. */ | |
1716 | ||
1717 | ||
1718 | #define CHECK_FUNCUNIT(INTISA,FUN,ERRVAL) \ | |
1719 | do { \ | |
1720 | if ((FUN) < 0 || (FUN) >= (INTISA)->num_funcUnits) \ | |
1721 | { \ | |
1722 | xtisa_errno = xtensa_isa_bad_funcUnit; \ | |
1723 | strcpy (xtisa_error_msg, "invalid functional unit specifier"); \ | |
1724 | return (ERRVAL); \ | |
1725 | } \ | |
1726 | } while (0) | |
1727 | ||
1728 | ||
1729 | xtensa_funcUnit | |
1730 | xtensa_funcUnit_lookup (xtensa_isa isa, const char *fname) | |
1731 | { | |
1732 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1fbc7e7a | 1733 | xtensa_lookup_entry entry, *result = 0; |
43cd72b9 BW |
1734 | |
1735 | if (!fname || !*fname) | |
e0001a05 | 1736 | { |
43cd72b9 BW |
1737 | xtisa_errno = xtensa_isa_bad_funcUnit; |
1738 | strcpy (xtisa_error_msg, "invalid functional unit name"); | |
1739 | return XTENSA_UNDEFINED; | |
e0001a05 | 1740 | } |
43cd72b9 | 1741 | |
1fbc7e7a BW |
1742 | if (intisa->num_funcUnits != 0) |
1743 | { | |
1744 | entry.key = fname; | |
1745 | result = bsearch (&entry, intisa->funcUnit_lookup_table, | |
1746 | intisa->num_funcUnits, sizeof (xtensa_lookup_entry), | |
1747 | xtensa_isa_name_compare); | |
1748 | } | |
43cd72b9 BW |
1749 | |
1750 | if (!result) | |
e0001a05 | 1751 | { |
43cd72b9 BW |
1752 | xtisa_errno = xtensa_isa_bad_funcUnit; |
1753 | sprintf (xtisa_error_msg, | |
1754 | "functional unit \"%s\" not recognized", fname); | |
1755 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1756 | } |
1757 | ||
43cd72b9 BW |
1758 | return result->u.fun; |
1759 | } | |
e0001a05 | 1760 | |
e0001a05 | 1761 | |
43cd72b9 BW |
1762 | const char * |
1763 | xtensa_funcUnit_name (xtensa_isa isa, xtensa_funcUnit fun) | |
1764 | { | |
1765 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1766 | CHECK_FUNCUNIT (intisa, fun, NULL); | |
1767 | return intisa->funcUnits[fun].name; | |
1768 | } | |
1769 | ||
1770 | ||
1771 | int | |
1772 | xtensa_funcUnit_num_copies (xtensa_isa isa, xtensa_funcUnit fun) | |
1773 | { | |
1774 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1775 | CHECK_FUNCUNIT (intisa, fun, XTENSA_UNDEFINED); | |
1776 | return intisa->funcUnits[fun].num_copies; | |
e0001a05 NC |
1777 | } |
1778 |