Commit | Line | Data |
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e0001a05 | 1 | /* Configurable Xtensa ISA support. |
43cd72b9 | 2 | Copyright 2003, 2004 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 | |
8 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
43cd72b9 BW |
20 | #include "bfd.h" |
21 | #include "sysdep.h" | |
22 | #include "libbfd.h" | |
e0001a05 NC |
23 | #include "xtensa-isa.h" |
24 | #include "xtensa-isa-internal.h" | |
25 | ||
43cd72b9 BW |
26 | xtensa_isa_status xtisa_errno; |
27 | char xtisa_error_msg[1024]; | |
28 | ||
29 | ||
30 | xtensa_isa_status | |
31 | xtensa_isa_errno (xtensa_isa isa __attribute__ ((unused))) | |
32 | { | |
33 | return xtisa_errno; | |
34 | } | |
35 | ||
e0001a05 | 36 | |
43cd72b9 BW |
37 | char * |
38 | xtensa_isa_error_msg (xtensa_isa isa __attribute__ ((unused))) | |
e0001a05 | 39 | { |
43cd72b9 BW |
40 | return xtisa_error_msg; |
41 | } | |
e0001a05 | 42 | |
43cd72b9 BW |
43 | |
44 | #define CHECK_ALLOC(MEM,ERRVAL) \ | |
45 | do { \ | |
46 | if ((MEM) == 0) \ | |
47 | { \ | |
48 | xtisa_errno = xtensa_isa_out_of_memory; \ | |
49 | strcpy (xtisa_error_msg, "out of memory"); \ | |
50 | return (ERRVAL); \ | |
51 | } \ | |
52 | } while (0) | |
53 | ||
54 | #define CHECK_ALLOC_FOR_INIT(MEM,ERRVAL,ERRNO_P,ERROR_MSG_P) \ | |
55 | do { \ | |
56 | if ((MEM) == 0) \ | |
57 | { \ | |
58 | xtisa_errno = xtensa_isa_out_of_memory; \ | |
59 | strcpy (xtisa_error_msg, "out of memory"); \ | |
60 | if (ERRNO_P) *(ERRNO_P) = xtisa_errno; \ | |
61 | if (ERROR_MSG_P) *(ERROR_MSG_P) = xtisa_error_msg; \ | |
62 | return (ERRVAL); \ | |
63 | } \ | |
64 | } while (0) | |
65 | ||
66 | \f | |
67 | /* Instruction buffers. */ | |
68 | ||
69 | int | |
70 | xtensa_insnbuf_size (xtensa_isa isa) | |
71 | { | |
72 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
73 | return intisa->insnbuf_size; | |
e0001a05 NC |
74 | } |
75 | ||
76 | ||
43cd72b9 BW |
77 | xtensa_insnbuf |
78 | xtensa_insnbuf_alloc (xtensa_isa isa) | |
79 | { | |
80 | xtensa_insnbuf result = (xtensa_insnbuf) | |
81 | malloc (xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word)); | |
82 | CHECK_ALLOC (result, 0); | |
83 | return result; | |
84 | } | |
85 | ||
86 | ||
87 | void | |
88 | xtensa_insnbuf_free (xtensa_isa isa __attribute__ ((unused)), | |
89 | xtensa_insnbuf buf) | |
90 | { | |
91 | free (buf); | |
92 | } | |
93 | ||
94 | ||
95 | /* Given <byte_index>, the index of a byte in a xtensa_insnbuf, our | |
96 | internal representation of a xtensa instruction word, return the index of | |
97 | its word and the bit index of its low order byte in the xtensa_insnbuf. */ | |
98 | ||
99 | static inline int | |
100 | byte_to_word_index (int byte_index) | |
101 | { | |
102 | return byte_index / sizeof (xtensa_insnbuf_word); | |
103 | } | |
104 | ||
105 | ||
106 | static inline int | |
107 | byte_to_bit_index (int byte_index) | |
108 | { | |
109 | return (byte_index & 0x3) * 8; | |
110 | } | |
111 | ||
112 | ||
113 | /* Copy an instruction in the 32-bit words pointed at by "insn" to | |
114 | characters pointed at by "cp". This is more complicated than you | |
115 | might think because we want 16-bit instructions in bytes 2 & 3 for | |
116 | big-endian configurations. This function allows us to specify | |
117 | which byte in "insn" to start with and which way to increment, | |
118 | allowing trivial implementation for both big- and little-endian | |
119 | configurations....and it seems to make pretty good code for | |
120 | both. */ | |
121 | ||
122 | int | |
123 | xtensa_insnbuf_to_chars (xtensa_isa isa, const xtensa_insnbuf insn, char *cp, | |
124 | int num_chars) | |
125 | { | |
126 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
127 | int insn_size = xtensa_isa_maxlength (isa); | |
128 | int fence_post, start, increment, i, byte_count; | |
129 | xtensa_format fmt; | |
130 | ||
131 | if (num_chars == 0) | |
132 | num_chars = insn_size; | |
133 | ||
134 | if (intisa->is_big_endian) | |
135 | { | |
136 | start = insn_size - 1; | |
137 | increment = -1; | |
138 | } | |
139 | else | |
140 | { | |
141 | start = 0; | |
142 | increment = 1; | |
143 | } | |
144 | ||
145 | /* Find the instruction format. Do nothing if the buffer does not contain | |
146 | a valid instruction since we need to know how many bytes to copy. */ | |
147 | fmt = xtensa_format_decode (isa, insn); | |
148 | if (fmt == XTENSA_UNDEFINED) | |
149 | return XTENSA_UNDEFINED; | |
150 | ||
151 | byte_count = xtensa_format_length (isa, fmt); | |
152 | if (byte_count == XTENSA_UNDEFINED) | |
153 | return XTENSA_UNDEFINED; | |
154 | ||
155 | if (byte_count > num_chars) | |
156 | { | |
157 | xtisa_errno = xtensa_isa_buffer_overflow; | |
158 | strcpy (xtisa_error_msg, "output buffer too small for instruction"); | |
159 | return XTENSA_UNDEFINED; | |
160 | } | |
161 | ||
162 | fence_post = start + (byte_count * increment); | |
163 | ||
164 | for (i = start; i != fence_post; i += increment, ++cp) | |
165 | { | |
166 | int word_inx = byte_to_word_index (i); | |
167 | int bit_inx = byte_to_bit_index (i); | |
168 | ||
169 | *cp = (insn[word_inx] >> bit_inx) & 0xff; | |
170 | } | |
171 | ||
172 | return byte_count; | |
173 | } | |
174 | ||
175 | ||
176 | /* Inward conversion from byte stream to xtensa_insnbuf. See | |
177 | xtensa_insnbuf_to_chars for a discussion of why this is complicated | |
178 | by endianness. */ | |
179 | ||
180 | void | |
181 | xtensa_insnbuf_from_chars (xtensa_isa isa, xtensa_insnbuf insn, const char *cp, | |
182 | int num_chars) | |
183 | { | |
184 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
185 | int max_size, insn_size, fence_post, start, increment, i; | |
186 | ||
187 | max_size = xtensa_isa_maxlength (isa); | |
188 | ||
189 | /* Decode the instruction length so we know how many bytes to read. */ | |
190 | insn_size = (intisa->length_decode_fn) (cp); | |
191 | if (insn_size == XTENSA_UNDEFINED) | |
192 | { | |
193 | /* This should never happen when the byte stream contains a | |
194 | valid instruction. Just read the maximum number of bytes.... */ | |
195 | insn_size = max_size; | |
196 | } | |
197 | ||
198 | if (num_chars == 0 || num_chars > insn_size) | |
199 | num_chars = insn_size; | |
200 | ||
201 | if (intisa->is_big_endian) | |
202 | { | |
203 | start = max_size - 1; | |
204 | increment = -1; | |
205 | } | |
206 | else | |
207 | { | |
208 | start = 0; | |
209 | increment = 1; | |
210 | } | |
211 | ||
212 | fence_post = start + (num_chars * increment); | |
213 | memset (insn, 0, xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word)); | |
214 | ||
215 | for (i = start; i != fence_post; i += increment, ++cp) | |
216 | { | |
217 | int word_inx = byte_to_word_index (i); | |
218 | int bit_inx = byte_to_bit_index (i); | |
219 | ||
220 | insn[word_inx] |= (*cp & 0xff) << bit_inx; | |
221 | } | |
222 | } | |
223 | ||
224 | ||
225 | \f | |
226 | /* ISA information. */ | |
227 | ||
228 | extern xtensa_isa_internal xtensa_modules; | |
229 | ||
e0001a05 | 230 | xtensa_isa |
43cd72b9 | 231 | xtensa_isa_init (xtensa_isa_status *errno_p, char **error_msg_p) |
e0001a05 | 232 | { |
43cd72b9 BW |
233 | xtensa_isa_internal *isa = &xtensa_modules; |
234 | int n, is_user; | |
235 | ||
236 | /* Set up the opcode name lookup table. */ | |
237 | isa->opname_lookup_table = | |
238 | bfd_malloc (isa->num_opcodes * sizeof (xtensa_lookup_entry)); | |
239 | CHECK_ALLOC_FOR_INIT (isa->opname_lookup_table, NULL, errno_p, error_msg_p); | |
240 | for (n = 0; n < isa->num_opcodes; n++) | |
241 | { | |
242 | isa->opname_lookup_table[n].key = isa->opcodes[n].name; | |
243 | isa->opname_lookup_table[n].u.opcode = n; | |
244 | } | |
245 | qsort (isa->opname_lookup_table, isa->num_opcodes, | |
246 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
e0001a05 | 247 | |
43cd72b9 BW |
248 | /* Set up the state name lookup table. */ |
249 | isa->state_lookup_table = | |
250 | bfd_malloc (isa->num_states * sizeof (xtensa_lookup_entry)); | |
251 | CHECK_ALLOC_FOR_INIT (isa->state_lookup_table, NULL, errno_p, error_msg_p); | |
252 | for (n = 0; n < isa->num_states; n++) | |
e0001a05 | 253 | { |
43cd72b9 BW |
254 | isa->state_lookup_table[n].key = isa->states[n].name; |
255 | isa->state_lookup_table[n].u.state = n; | |
256 | } | |
257 | qsort (isa->state_lookup_table, isa->num_states, | |
258 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
259 | ||
260 | /* Set up the sysreg name lookup table. */ | |
261 | isa->sysreg_lookup_table = | |
262 | bfd_malloc (isa->num_sysregs * sizeof (xtensa_lookup_entry)); | |
263 | CHECK_ALLOC_FOR_INIT (isa->sysreg_lookup_table, NULL, errno_p, error_msg_p); | |
264 | for (n = 0; n < isa->num_sysregs; n++) | |
265 | { | |
266 | isa->sysreg_lookup_table[n].key = isa->sysregs[n].name; | |
267 | isa->sysreg_lookup_table[n].u.sysreg = n; | |
268 | } | |
269 | qsort (isa->sysreg_lookup_table, isa->num_sysregs, | |
270 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
271 | ||
272 | /* Set up the user & system sysreg number tables. */ | |
273 | for (is_user = 0; is_user < 2; is_user++) | |
274 | { | |
275 | isa->sysreg_table[is_user] = | |
276 | bfd_malloc ((isa->max_sysreg_num[is_user] + 1) | |
277 | * sizeof (xtensa_sysreg)); | |
278 | CHECK_ALLOC_FOR_INIT (isa->sysreg_table[is_user], NULL, | |
279 | errno_p, error_msg_p); | |
280 | ||
281 | for (n = 0; n <= isa->max_sysreg_num[is_user]; n++) | |
282 | isa->sysreg_table[is_user][n] = XTENSA_UNDEFINED; | |
283 | } | |
284 | for (n = 0; n < isa->num_sysregs; n++) | |
285 | { | |
286 | xtensa_sysreg_internal *sreg = &isa->sysregs[n]; | |
287 | is_user = sreg->is_user; | |
288 | ||
289 | isa->sysreg_table[is_user][sreg->number] = n; | |
290 | } | |
291 | ||
292 | /* Set up the interface lookup table. */ | |
293 | isa->interface_lookup_table = | |
294 | bfd_malloc (isa->num_interfaces * sizeof (xtensa_lookup_entry)); | |
295 | CHECK_ALLOC_FOR_INIT (isa->interface_lookup_table, NULL, errno_p, | |
296 | error_msg_p); | |
297 | for (n = 0; n < isa->num_interfaces; n++) | |
298 | { | |
299 | isa->interface_lookup_table[n].key = isa->interfaces[n].name; | |
300 | isa->interface_lookup_table[n].u.intf = n; | |
301 | } | |
302 | qsort (isa->interface_lookup_table, isa->num_interfaces, | |
303 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
304 | ||
305 | /* Set up the funcUnit lookup table. */ | |
306 | isa->funcUnit_lookup_table = | |
307 | bfd_malloc (isa->num_funcUnits * sizeof (xtensa_lookup_entry)); | |
308 | CHECK_ALLOC_FOR_INIT (isa->funcUnit_lookup_table, NULL, errno_p, | |
309 | error_msg_p); | |
310 | for (n = 0; n < isa->num_funcUnits; n++) | |
311 | { | |
312 | isa->funcUnit_lookup_table[n].key = isa->funcUnits[n].name; | |
313 | isa->funcUnit_lookup_table[n].u.fun = n; | |
314 | } | |
315 | qsort (isa->funcUnit_lookup_table, isa->num_funcUnits, | |
316 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
317 | ||
318 | isa->insnbuf_size = ((isa->insn_size + sizeof (xtensa_insnbuf_word) - 1) / | |
319 | sizeof (xtensa_insnbuf_word)); | |
320 | ||
321 | return (xtensa_isa) isa; | |
322 | } | |
323 | ||
324 | ||
325 | void | |
326 | xtensa_isa_free (xtensa_isa isa) | |
327 | { | |
328 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
329 | int n; | |
330 | ||
331 | /* With this version of the code, the xtensa_isa structure is not | |
332 | dynamically allocated, so this function is not essential. Free | |
333 | the memory allocated by xtensa_isa_init and restore the xtensa_isa | |
334 | structure to its initial state. */ | |
335 | ||
336 | if (intisa->opname_lookup_table) | |
337 | { | |
338 | free (intisa->opname_lookup_table); | |
339 | intisa->opname_lookup_table = 0; | |
e0001a05 NC |
340 | } |
341 | ||
43cd72b9 | 342 | if (intisa->state_lookup_table) |
e0001a05 | 343 | { |
43cd72b9 BW |
344 | free (intisa->state_lookup_table); |
345 | intisa->state_lookup_table = 0; | |
346 | } | |
347 | ||
348 | if (intisa->sysreg_lookup_table) | |
349 | { | |
350 | free (intisa->sysreg_lookup_table); | |
351 | intisa->sysreg_lookup_table = 0; | |
352 | } | |
353 | for (n = 0; n < 2; n++) | |
354 | { | |
355 | if (intisa->sysreg_table[n]) | |
e0001a05 | 356 | { |
43cd72b9 BW |
357 | free (intisa->sysreg_table[n]); |
358 | intisa->sysreg_table[n] = 0; | |
e0001a05 NC |
359 | } |
360 | } | |
43cd72b9 BW |
361 | |
362 | if (intisa->interface_lookup_table) | |
363 | { | |
364 | free (intisa->interface_lookup_table); | |
365 | intisa->interface_lookup_table = 0; | |
366 | } | |
367 | ||
368 | if (intisa->funcUnit_lookup_table) | |
369 | { | |
370 | free (intisa->funcUnit_lookup_table); | |
371 | intisa->funcUnit_lookup_table = 0; | |
372 | } | |
373 | } | |
374 | ||
375 | ||
376 | int | |
377 | xtensa_isa_name_compare (const void *v1, const void *v2) | |
378 | { | |
379 | xtensa_lookup_entry *e1 = (xtensa_lookup_entry *) v1; | |
380 | xtensa_lookup_entry *e2 = (xtensa_lookup_entry *) v2; | |
381 | ||
382 | return strcasecmp (e1->key, e2->key); | |
383 | } | |
384 | ||
385 | ||
386 | int | |
387 | xtensa_isa_maxlength (xtensa_isa isa) | |
388 | { | |
389 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
390 | return intisa->insn_size; | |
391 | } | |
392 | ||
393 | ||
394 | int | |
395 | xtensa_isa_length_from_chars (xtensa_isa isa, const char *cp) | |
396 | { | |
397 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
398 | return (intisa->length_decode_fn) (cp); | |
399 | } | |
400 | ||
401 | ||
402 | int | |
403 | xtensa_isa_num_pipe_stages (xtensa_isa isa) | |
404 | { | |
405 | int num_opcodes, num_uses; | |
406 | xtensa_opcode opcode; | |
407 | xtensa_funcUnit_use *use; | |
408 | int i, stage, max_stage = XTENSA_UNDEFINED; | |
409 | ||
410 | num_opcodes = xtensa_isa_num_opcodes (isa); | |
411 | for (opcode = 0; opcode < num_opcodes; opcode++) | |
412 | { | |
413 | num_uses = xtensa_opcode_num_funcUnit_uses (isa, opcode); | |
414 | for (i = 0; i < num_uses; i++) | |
415 | { | |
416 | use = xtensa_opcode_funcUnit_use (isa, opcode, i); | |
417 | stage = use->stage; | |
418 | if (stage > max_stage) | |
419 | max_stage = stage; | |
420 | } | |
421 | } | |
422 | ||
423 | return max_stage + 1; | |
424 | } | |
425 | ||
426 | ||
427 | int | |
428 | xtensa_isa_num_formats (xtensa_isa isa) | |
429 | { | |
430 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
431 | return intisa->num_formats; | |
432 | } | |
433 | ||
434 | ||
435 | int | |
436 | xtensa_isa_num_opcodes (xtensa_isa isa) | |
437 | { | |
438 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
439 | return intisa->num_opcodes; | |
440 | } | |
441 | ||
442 | ||
443 | int | |
444 | xtensa_isa_num_regfiles (xtensa_isa isa) | |
445 | { | |
446 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
447 | return intisa->num_regfiles; | |
448 | } | |
449 | ||
450 | ||
451 | int | |
452 | xtensa_isa_num_states (xtensa_isa isa) | |
453 | { | |
454 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
455 | return intisa->num_states; | |
456 | } | |
457 | ||
458 | ||
459 | int | |
460 | xtensa_isa_num_sysregs (xtensa_isa isa) | |
461 | { | |
462 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
463 | return intisa->num_sysregs; | |
464 | } | |
465 | ||
466 | ||
467 | int | |
468 | xtensa_isa_num_interfaces (xtensa_isa isa) | |
469 | { | |
470 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
471 | return intisa->num_interfaces; | |
472 | } | |
473 | ||
474 | ||
475 | int | |
476 | xtensa_isa_num_funcUnits (xtensa_isa isa) | |
477 | { | |
478 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
479 | return intisa->num_funcUnits; | |
480 | } | |
481 | ||
482 | ||
483 | \f | |
484 | /* Instruction formats. */ | |
485 | ||
486 | ||
487 | #define CHECK_FORMAT(INTISA,FMT,ERRVAL) \ | |
488 | do { \ | |
489 | if ((FMT) < 0 || (FMT) >= (INTISA)->num_formats) \ | |
490 | { \ | |
491 | xtisa_errno = xtensa_isa_bad_format; \ | |
492 | strcpy (xtisa_error_msg, "invalid format specifier"); \ | |
493 | return (ERRVAL); \ | |
494 | } \ | |
495 | } while (0) | |
496 | ||
497 | ||
498 | #define CHECK_SLOT(INTISA,FMT,SLOT,ERRVAL) \ | |
499 | do { \ | |
500 | if ((SLOT) < 0 || (SLOT) >= (INTISA)->formats[FMT].num_slots) \ | |
501 | { \ | |
502 | xtisa_errno = xtensa_isa_bad_slot; \ | |
503 | strcpy (xtisa_error_msg, "invalid slot specifier"); \ | |
504 | return (ERRVAL); \ | |
505 | } \ | |
506 | } while (0) | |
507 | ||
508 | ||
509 | const char * | |
510 | xtensa_format_name (xtensa_isa isa, xtensa_format fmt) | |
511 | { | |
512 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
513 | CHECK_FORMAT (intisa, fmt, NULL); | |
514 | return intisa->formats[fmt].name; | |
515 | } | |
516 | ||
517 | ||
518 | xtensa_format | |
519 | xtensa_format_lookup (xtensa_isa isa, const char *fmtname) | |
520 | { | |
521 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
522 | int fmt; | |
523 | ||
524 | if (!fmtname || !*fmtname) | |
525 | { | |
526 | xtisa_errno = xtensa_isa_bad_format; | |
527 | strcpy (xtisa_error_msg, "invalid format name"); | |
528 | return XTENSA_UNDEFINED; | |
529 | } | |
530 | ||
531 | for (fmt = 0; fmt < intisa->num_formats; fmt++) | |
532 | { | |
533 | if (strcasecmp (fmtname, intisa->formats[fmt].name) == 0) | |
534 | return fmt; | |
535 | } | |
536 | ||
537 | xtisa_errno = xtensa_isa_bad_format; | |
538 | sprintf (xtisa_error_msg, "format \"%s\" not recognized", fmtname); | |
539 | return XTENSA_UNDEFINED; | |
540 | } | |
541 | ||
542 | ||
543 | xtensa_format | |
544 | xtensa_format_decode (xtensa_isa isa, const xtensa_insnbuf insn) | |
545 | { | |
546 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
547 | xtensa_format fmt; | |
548 | ||
549 | fmt = (intisa->format_decode_fn) (insn); | |
550 | if (fmt != XTENSA_UNDEFINED) | |
551 | return fmt; | |
552 | ||
553 | xtisa_errno = xtensa_isa_bad_format; | |
554 | strcpy (xtisa_error_msg, "cannot decode instruction format"); | |
555 | return XTENSA_UNDEFINED; | |
556 | } | |
557 | ||
558 | ||
559 | int | |
560 | xtensa_format_encode (xtensa_isa isa, xtensa_format fmt, xtensa_insnbuf insn) | |
561 | { | |
562 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
563 | CHECK_FORMAT (intisa, fmt, -1); | |
564 | (*intisa->formats[fmt].encode_fn) (insn); | |
565 | return 0; | |
566 | } | |
567 | ||
568 | ||
569 | int | |
570 | xtensa_format_length (xtensa_isa isa, xtensa_format fmt) | |
571 | { | |
572 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
573 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
574 | return intisa->formats[fmt].length; | |
575 | } | |
576 | ||
577 | ||
578 | int | |
579 | xtensa_format_num_slots (xtensa_isa isa, xtensa_format fmt) | |
580 | { | |
581 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
582 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
583 | return intisa->formats[fmt].num_slots; | |
584 | } | |
585 | ||
586 | ||
587 | xtensa_opcode | |
588 | xtensa_format_slot_nop_opcode (xtensa_isa isa, xtensa_format fmt, int slot) | |
589 | { | |
590 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
591 | int slot_id; | |
592 | ||
593 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
594 | CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED); | |
595 | ||
596 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
597 | return xtensa_opcode_lookup (isa, intisa->slots[slot_id].nop_name); | |
598 | } | |
599 | ||
600 | ||
601 | int | |
602 | xtensa_format_get_slot (xtensa_isa isa, xtensa_format fmt, int slot, | |
603 | const xtensa_insnbuf insn, xtensa_insnbuf slotbuf) | |
604 | { | |
605 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
606 | int slot_id; | |
607 | ||
608 | CHECK_FORMAT (intisa, fmt, -1); | |
609 | CHECK_SLOT (intisa, fmt, slot, -1); | |
610 | ||
611 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
612 | (*intisa->slots[slot_id].get_fn) (insn, slotbuf); | |
613 | return 0; | |
614 | } | |
615 | ||
616 | ||
617 | int | |
618 | xtensa_format_set_slot (xtensa_isa isa, xtensa_format fmt, int slot, | |
619 | xtensa_insnbuf insn, const xtensa_insnbuf slotbuf) | |
620 | { | |
621 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
622 | int slot_id; | |
623 | ||
624 | CHECK_FORMAT (intisa, fmt, -1); | |
625 | CHECK_SLOT (intisa, fmt, slot, -1); | |
626 | ||
627 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
628 | (*intisa->slots[slot_id].set_fn) (insn, slotbuf); | |
629 | return 0; | |
630 | } | |
631 | ||
632 | ||
633 | \f | |
634 | /* Opcode information. */ | |
635 | ||
636 | ||
637 | #define CHECK_OPCODE(INTISA,OPC,ERRVAL) \ | |
638 | do { \ | |
639 | if ((OPC) < 0 || (OPC) >= (INTISA)->num_opcodes) \ | |
640 | { \ | |
641 | xtisa_errno = xtensa_isa_bad_opcode; \ | |
642 | strcpy (xtisa_error_msg, "invalid opcode specifier"); \ | |
643 | return (ERRVAL); \ | |
644 | } \ | |
645 | } while (0) | |
646 | ||
647 | ||
648 | xtensa_opcode | |
649 | xtensa_opcode_lookup (xtensa_isa isa, const char *opname) | |
650 | { | |
651 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
652 | xtensa_lookup_entry entry, *result; | |
653 | ||
654 | if (!opname || !*opname) | |
655 | { | |
656 | xtisa_errno = xtensa_isa_bad_opcode; | |
657 | strcpy (xtisa_error_msg, "invalid opcode name"); | |
658 | return XTENSA_UNDEFINED; | |
659 | } | |
660 | ||
661 | entry.key = opname; | |
662 | result = bsearch (&entry, intisa->opname_lookup_table, intisa->num_opcodes, | |
663 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
664 | ||
665 | if (!result) | |
666 | { | |
667 | xtisa_errno = xtensa_isa_bad_opcode; | |
668 | sprintf (xtisa_error_msg, "opcode \"%s\" not recognized", opname); | |
669 | return XTENSA_UNDEFINED; | |
670 | } | |
671 | ||
672 | return result->u.opcode; | |
673 | } | |
674 | ||
675 | ||
676 | xtensa_opcode | |
677 | xtensa_opcode_decode (xtensa_isa isa, xtensa_format fmt, int slot, | |
678 | const xtensa_insnbuf slotbuf) | |
679 | { | |
680 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
681 | int slot_id; | |
682 | xtensa_opcode opc; | |
683 | ||
684 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
685 | CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED); | |
686 | ||
687 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
688 | ||
689 | opc = (intisa->slots[slot_id].opcode_decode_fn) (slotbuf); | |
690 | if (opc == XTENSA_UNDEFINED) | |
691 | { | |
692 | xtisa_errno = xtensa_isa_bad_opcode; | |
693 | strcpy (xtisa_error_msg, "cannot decode opcode"); | |
694 | } | |
695 | return opc; | |
696 | } | |
697 | ||
698 | ||
699 | int | |
700 | xtensa_opcode_encode (xtensa_isa isa, xtensa_format fmt, int slot, | |
701 | xtensa_insnbuf slotbuf, xtensa_opcode opc) | |
702 | { | |
703 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
704 | int slot_id; | |
705 | xtensa_opcode_encode_fn encode_fn; | |
706 | ||
707 | CHECK_FORMAT (intisa, fmt, -1); | |
708 | CHECK_SLOT (intisa, fmt, slot, -1); | |
709 | CHECK_OPCODE (intisa, opc, -1); | |
710 | ||
711 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
712 | encode_fn = intisa->opcodes[opc].encode_fns[slot_id]; | |
713 | if (!encode_fn) | |
714 | { | |
715 | xtisa_errno = xtensa_isa_wrong_slot; | |
716 | sprintf (xtisa_error_msg, | |
717 | "opcode \"%s\" is not allowed in slot %d of format \"%s\"", | |
718 | intisa->opcodes[opc].name, slot, intisa->formats[fmt].name); | |
719 | return -1; | |
720 | } | |
721 | (*encode_fn) (slotbuf); | |
722 | return 0; | |
723 | } | |
724 | ||
725 | ||
726 | const char * | |
727 | xtensa_opcode_name (xtensa_isa isa, xtensa_opcode opc) | |
728 | { | |
729 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
730 | CHECK_OPCODE (intisa, opc, NULL); | |
731 | return intisa->opcodes[opc].name; | |
732 | } | |
733 | ||
734 | ||
735 | int | |
736 | xtensa_opcode_is_branch (xtensa_isa isa, xtensa_opcode opc) | |
737 | { | |
738 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
739 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
740 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_BRANCH) != 0) | |
741 | return 1; | |
742 | return 0; | |
743 | } | |
744 | ||
745 | ||
746 | int | |
747 | xtensa_opcode_is_jump (xtensa_isa isa, xtensa_opcode opc) | |
748 | { | |
749 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
750 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
751 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_JUMP) != 0) | |
752 | return 1; | |
753 | return 0; | |
754 | } | |
755 | ||
756 | ||
757 | int | |
758 | xtensa_opcode_is_loop (xtensa_isa isa, xtensa_opcode opc) | |
759 | { | |
760 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
761 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
762 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_LOOP) != 0) | |
763 | return 1; | |
764 | return 0; | |
765 | } | |
766 | ||
767 | ||
768 | int | |
769 | xtensa_opcode_is_call (xtensa_isa isa, xtensa_opcode opc) | |
770 | { | |
771 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
772 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
773 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_CALL) != 0) | |
774 | return 1; | |
775 | return 0; | |
776 | } | |
777 | ||
778 | ||
779 | int | |
780 | xtensa_opcode_num_operands (xtensa_isa isa, xtensa_opcode opc) | |
781 | { | |
782 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
783 | int iclass_id; | |
784 | ||
785 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
786 | iclass_id = intisa->opcodes[opc].iclass_id; | |
787 | return intisa->iclasses[iclass_id].num_operands; | |
788 | } | |
789 | ||
790 | ||
791 | int | |
792 | xtensa_opcode_num_stateOperands (xtensa_isa isa, xtensa_opcode opc) | |
793 | { | |
794 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
795 | int iclass_id; | |
796 | ||
797 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
798 | iclass_id = intisa->opcodes[opc].iclass_id; | |
799 | return intisa->iclasses[iclass_id].num_stateOperands; | |
800 | } | |
801 | ||
802 | ||
803 | int | |
804 | xtensa_opcode_num_interfaceOperands (xtensa_isa isa, xtensa_opcode opc) | |
805 | { | |
806 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
807 | int iclass_id; | |
808 | ||
809 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
810 | iclass_id = intisa->opcodes[opc].iclass_id; | |
811 | return intisa->iclasses[iclass_id].num_interfaceOperands; | |
812 | } | |
813 | ||
814 | ||
815 | int | |
816 | xtensa_opcode_num_funcUnit_uses (xtensa_isa isa, xtensa_opcode opc) | |
817 | { | |
818 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
819 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
820 | return intisa->opcodes[opc].num_funcUnit_uses; | |
821 | } | |
822 | ||
823 | ||
824 | xtensa_funcUnit_use * | |
825 | xtensa_opcode_funcUnit_use (xtensa_isa isa, xtensa_opcode opc, int u) | |
826 | { | |
827 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
828 | CHECK_OPCODE (intisa, opc, NULL); | |
829 | if (u < 0 || u >= intisa->opcodes[opc].num_funcUnit_uses) | |
830 | { | |
831 | xtisa_errno = xtensa_isa_bad_funcUnit; | |
832 | sprintf (xtisa_error_msg, "invalid functional unit use number (%d); " | |
833 | "opcode \"%s\" has %d", u, intisa->opcodes[opc].name, | |
834 | intisa->opcodes[opc].num_funcUnit_uses); | |
835 | return NULL; | |
836 | } | |
837 | return &intisa->opcodes[opc].funcUnit_uses[u]; | |
838 | } | |
839 | ||
840 | ||
841 | \f | |
842 | /* Operand information. */ | |
843 | ||
844 | ||
845 | #define CHECK_OPERAND(INTISA,OPC,ICLASS,OPND,ERRVAL) \ | |
846 | do { \ | |
847 | if ((OPND) < 0 || (OPND) >= (ICLASS)->num_operands) \ | |
848 | { \ | |
849 | xtisa_errno = xtensa_isa_bad_operand; \ | |
850 | sprintf (xtisa_error_msg, "invalid operand number (%d); " \ | |
851 | "opcode \"%s\" has %d operands", (OPND), \ | |
852 | (INTISA)->opcodes[(OPC)].name, (ICLASS)->num_operands); \ | |
853 | return (ERRVAL); \ | |
854 | } \ | |
855 | } while (0) | |
856 | ||
857 | ||
858 | static xtensa_operand_internal * | |
859 | get_operand (xtensa_isa_internal *intisa, xtensa_opcode opc, int opnd) | |
860 | { | |
861 | xtensa_iclass_internal *iclass; | |
862 | int iclass_id, operand_id; | |
863 | ||
864 | CHECK_OPCODE (intisa, opc, NULL); | |
865 | iclass_id = intisa->opcodes[opc].iclass_id; | |
866 | iclass = &intisa->iclasses[iclass_id]; | |
867 | CHECK_OPERAND (intisa, opc, iclass, opnd, NULL); | |
868 | operand_id = iclass->operands[opnd].u.operand_id; | |
869 | return &intisa->operands[operand_id]; | |
870 | } | |
871 | ||
872 | ||
873 | const char * | |
874 | xtensa_operand_name (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
875 | { | |
876 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
877 | xtensa_operand_internal *intop; | |
878 | ||
879 | intop = get_operand (intisa, opc, opnd); | |
880 | if (!intop) return NULL; | |
881 | return intop->name; | |
882 | } | |
883 | ||
884 | ||
885 | int | |
886 | xtensa_operand_is_visible (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
887 | { | |
888 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
889 | xtensa_iclass_internal *iclass; | |
890 | int iclass_id, operand_id; | |
891 | xtensa_operand_internal *intop; | |
892 | ||
893 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
894 | iclass_id = intisa->opcodes[opc].iclass_id; | |
895 | iclass = &intisa->iclasses[iclass_id]; | |
896 | CHECK_OPERAND (intisa, opc, iclass, opnd, XTENSA_UNDEFINED); | |
897 | ||
898 | /* Special case for "sout" operands. */ | |
899 | if (iclass->operands[opnd].inout == 's') | |
900 | return 0; | |
901 | ||
902 | operand_id = iclass->operands[opnd].u.operand_id; | |
903 | intop = &intisa->operands[operand_id]; | |
904 | ||
905 | if ((intop->flags & XTENSA_OPERAND_IS_INVISIBLE) == 0) | |
906 | return 1; | |
907 | return 0; | |
908 | } | |
909 | ||
910 | ||
911 | char | |
912 | xtensa_operand_inout (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
913 | { | |
914 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
915 | xtensa_iclass_internal *iclass; | |
916 | int iclass_id; | |
917 | char inout; | |
918 | ||
919 | CHECK_OPCODE (intisa, opc, 0); | |
920 | iclass_id = intisa->opcodes[opc].iclass_id; | |
921 | iclass = &intisa->iclasses[iclass_id]; | |
922 | CHECK_OPERAND (intisa, opc, iclass, opnd, 0); | |
923 | inout = iclass->operands[opnd].inout; | |
924 | ||
925 | /* Special case for "sout" operands. */ | |
926 | if (inout == 's') | |
927 | return 'o'; | |
928 | ||
929 | return inout; | |
930 | } | |
931 | ||
932 | ||
933 | int | |
934 | xtensa_operand_get_field (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
935 | xtensa_format fmt, int slot, | |
936 | const xtensa_insnbuf slotbuf, uint32 *valp) | |
937 | { | |
938 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
939 | xtensa_operand_internal *intop; | |
940 | int slot_id; | |
941 | xtensa_get_field_fn get_fn; | |
942 | ||
943 | intop = get_operand (intisa, opc, opnd); | |
944 | if (!intop) return -1; | |
945 | ||
946 | CHECK_FORMAT (intisa, fmt, -1); | |
947 | CHECK_SLOT (intisa, fmt, slot, -1); | |
948 | ||
949 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
950 | if (intop->field_id == XTENSA_UNDEFINED) | |
951 | { | |
952 | xtisa_errno = xtensa_isa_no_field; | |
953 | strcpy (xtisa_error_msg, "implicit operand has no field"); | |
954 | return -1; | |
955 | } | |
956 | get_fn = intisa->slots[slot_id].get_field_fns[intop->field_id]; | |
957 | if (!get_fn) | |
958 | { | |
959 | xtisa_errno = xtensa_isa_wrong_slot; | |
960 | sprintf (xtisa_error_msg, | |
961 | "operand \"%s\" does not exist in slot %d of format \"%s\"", | |
962 | intop->name, slot, intisa->formats[fmt].name); | |
963 | return -1; | |
964 | } | |
965 | *valp = (*get_fn) (slotbuf); | |
966 | return 0; | |
967 | } | |
968 | ||
969 | ||
970 | int | |
971 | xtensa_operand_set_field (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
972 | xtensa_format fmt, int slot, | |
973 | xtensa_insnbuf slotbuf, uint32 val) | |
974 | { | |
975 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
976 | xtensa_operand_internal *intop; | |
977 | int slot_id; | |
978 | xtensa_set_field_fn set_fn; | |
979 | ||
980 | intop = get_operand (intisa, opc, opnd); | |
981 | if (!intop) return -1; | |
982 | ||
983 | CHECK_FORMAT (intisa, fmt, -1); | |
984 | CHECK_SLOT (intisa, fmt, slot, -1); | |
985 | ||
986 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
987 | if (intop->field_id == XTENSA_UNDEFINED) | |
988 | { | |
989 | xtisa_errno = xtensa_isa_no_field; | |
990 | strcpy (xtisa_error_msg, "implicit operand has no field"); | |
991 | return -1; | |
992 | } | |
993 | set_fn = intisa->slots[slot_id].set_field_fns[intop->field_id]; | |
994 | if (!set_fn) | |
995 | { | |
996 | xtisa_errno = xtensa_isa_wrong_slot; | |
997 | sprintf (xtisa_error_msg, | |
998 | "operand \"%s\" does not exist in slot %d of format \"%s\"", | |
999 | intop->name, slot, intisa->formats[fmt].name); | |
1000 | return -1; | |
1001 | } | |
1002 | (*set_fn) (slotbuf, val); | |
1003 | return 0; | |
e0001a05 NC |
1004 | } |
1005 | ||
e0001a05 | 1006 | |
43cd72b9 BW |
1007 | int |
1008 | xtensa_operand_encode (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
1009 | uint32 *valp) | |
e0001a05 | 1010 | { |
43cd72b9 BW |
1011 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1012 | xtensa_operand_internal *intop; | |
1013 | uint32 test_val, orig_val; | |
e0001a05 | 1014 | |
43cd72b9 BW |
1015 | intop = get_operand (intisa, opc, opnd); |
1016 | if (!intop) return -1; | |
e0001a05 | 1017 | |
43cd72b9 | 1018 | if (!intop->encode) |
e0001a05 | 1019 | { |
43cd72b9 BW |
1020 | /* This is a default operand for a field. How can we tell if the |
1021 | value fits in the field? Write the value into the field, | |
1022 | read it back, and then make sure we get the same value. */ | |
e0001a05 | 1023 | |
43cd72b9 BW |
1024 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1025 | static xtensa_insnbuf tmpbuf = 0; | |
1026 | int slot_id; | |
e0001a05 | 1027 | |
43cd72b9 | 1028 | if (!tmpbuf) |
e0001a05 | 1029 | { |
43cd72b9 BW |
1030 | tmpbuf = xtensa_insnbuf_alloc (isa); |
1031 | CHECK_ALLOC (tmpbuf, -1); | |
e0001a05 | 1032 | } |
43cd72b9 BW |
1033 | |
1034 | /* A default operand is always associated with a field, | |
1035 | but check just to be sure.... */ | |
1036 | if (intop->field_id == XTENSA_UNDEFINED) | |
e0001a05 | 1037 | { |
43cd72b9 BW |
1038 | xtisa_errno = xtensa_isa_internal_error; |
1039 | strcpy (xtisa_error_msg, "operand has no field"); | |
1040 | return -1; | |
e0001a05 NC |
1041 | } |
1042 | ||
43cd72b9 BW |
1043 | /* Find some slot that includes the field. */ |
1044 | for (slot_id = 0; slot_id < intisa->num_slots; slot_id++) | |
e0001a05 | 1045 | { |
43cd72b9 BW |
1046 | xtensa_get_field_fn get_fn = |
1047 | intisa->slots[slot_id].get_field_fns[intop->field_id]; | |
1048 | xtensa_set_field_fn set_fn = | |
1049 | intisa->slots[slot_id].set_field_fns[intop->field_id]; | |
1050 | ||
1051 | if (get_fn && set_fn) | |
e0001a05 | 1052 | { |
43cd72b9 BW |
1053 | (*set_fn) (tmpbuf, *valp); |
1054 | return ((*get_fn) (tmpbuf) != *valp); | |
e0001a05 NC |
1055 | } |
1056 | } | |
43cd72b9 BW |
1057 | |
1058 | /* Couldn't find any slot containing the field.... */ | |
1059 | xtisa_errno = xtensa_isa_no_field; | |
1060 | strcpy (xtisa_error_msg, "field does not exist in any slot"); | |
1061 | return -1; | |
1062 | } | |
1063 | ||
1064 | /* Encode the value. In some cases, the encoding function may detect | |
1065 | errors, but most of the time the only way to determine if the value | |
1066 | was successfully encoded is to decode it and check if it matches | |
1067 | the original value. */ | |
1068 | orig_val = *valp; | |
1069 | if ((*intop->encode) (valp) || | |
1070 | (test_val = *valp, (*intop->decode) (&test_val)) || | |
1071 | test_val != orig_val) | |
1072 | { | |
1073 | xtisa_errno = xtensa_isa_bad_value; | |
1074 | sprintf (xtisa_error_msg, "cannot encode operand value 0x%08x", *valp); | |
1075 | return -1; | |
e0001a05 NC |
1076 | } |
1077 | ||
43cd72b9 | 1078 | return 0; |
e0001a05 NC |
1079 | } |
1080 | ||
1081 | ||
43cd72b9 BW |
1082 | int |
1083 | xtensa_operand_decode (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
1084 | uint32 *valp) | |
e0001a05 | 1085 | { |
43cd72b9 BW |
1086 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1087 | xtensa_operand_internal *intop; | |
e0001a05 | 1088 | |
43cd72b9 BW |
1089 | intop = get_operand (intisa, opc, opnd); |
1090 | if (!intop) return -1; | |
e0001a05 | 1091 | |
43cd72b9 BW |
1092 | /* Use identity function for "default" operands. */ |
1093 | if (!intop->decode) | |
e0001a05 NC |
1094 | return 0; |
1095 | ||
43cd72b9 | 1096 | if ((*intop->decode) (valp)) |
e0001a05 | 1097 | { |
43cd72b9 BW |
1098 | xtisa_errno = xtensa_isa_bad_value; |
1099 | sprintf (xtisa_error_msg, "cannot decode operand value 0x%08x", *valp); | |
1100 | return -1; | |
e0001a05 | 1101 | } |
43cd72b9 BW |
1102 | return 0; |
1103 | } | |
e0001a05 | 1104 | |
e0001a05 | 1105 | |
43cd72b9 BW |
1106 | int |
1107 | xtensa_operand_is_register (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
1108 | { | |
1109 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1110 | xtensa_operand_internal *intop; | |
e0001a05 | 1111 | |
43cd72b9 BW |
1112 | intop = get_operand (intisa, opc, opnd); |
1113 | if (!intop) return XTENSA_UNDEFINED; | |
e0001a05 | 1114 | |
43cd72b9 BW |
1115 | if ((intop->flags & XTENSA_OPERAND_IS_REGISTER) != 0) |
1116 | return 1; | |
1117 | return 0; | |
1118 | } | |
e0001a05 | 1119 | |
e0001a05 | 1120 | |
43cd72b9 BW |
1121 | xtensa_regfile |
1122 | xtensa_operand_regfile (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
1123 | { | |
1124 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1125 | xtensa_operand_internal *intop; | |
e0001a05 | 1126 | |
43cd72b9 BW |
1127 | intop = get_operand (intisa, opc, opnd); |
1128 | if (!intop) return XTENSA_UNDEFINED; | |
e0001a05 | 1129 | |
43cd72b9 | 1130 | return intop->regfile; |
e0001a05 NC |
1131 | } |
1132 | ||
1133 | ||
43cd72b9 BW |
1134 | int |
1135 | xtensa_operand_num_regs (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
e0001a05 | 1136 | { |
43cd72b9 BW |
1137 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1138 | xtensa_operand_internal *intop; | |
e0001a05 | 1139 | |
43cd72b9 BW |
1140 | intop = get_operand (intisa, opc, opnd); |
1141 | if (!intop) return XTENSA_UNDEFINED; | |
1142 | ||
1143 | return intop->num_regs; | |
e0001a05 NC |
1144 | } |
1145 | ||
1146 | ||
1147 | int | |
43cd72b9 | 1148 | xtensa_operand_is_known_reg (xtensa_isa isa, xtensa_opcode opc, int opnd) |
e0001a05 NC |
1149 | { |
1150 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1151 | xtensa_operand_internal *intop; |
1152 | ||
1153 | intop = get_operand (intisa, opc, opnd); | |
1154 | if (!intop) return XTENSA_UNDEFINED; | |
1155 | ||
1156 | if ((intop->flags & XTENSA_OPERAND_IS_UNKNOWN) == 0) | |
1157 | return 1; | |
1158 | return 0; | |
e0001a05 NC |
1159 | } |
1160 | ||
1161 | ||
43cd72b9 BW |
1162 | int |
1163 | xtensa_operand_is_PCrelative (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
e0001a05 NC |
1164 | { |
1165 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1166 | xtensa_operand_internal *intop; |
1167 | ||
1168 | intop = get_operand (intisa, opc, opnd); | |
1169 | if (!intop) return XTENSA_UNDEFINED; | |
1170 | ||
1171 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) != 0) | |
1172 | return 1; | |
1173 | return 0; | |
e0001a05 NC |
1174 | } |
1175 | ||
1176 | ||
1177 | int | |
43cd72b9 BW |
1178 | xtensa_operand_do_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd, |
1179 | uint32 *valp, uint32 pc) | |
e0001a05 NC |
1180 | { |
1181 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1182 | xtensa_operand_internal *intop; |
1183 | ||
1184 | intop = get_operand (intisa, opc, opnd); | |
1185 | if (!intop) return -1; | |
1186 | ||
1187 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0) | |
1188 | return 0; | |
1189 | ||
1190 | if (!intop->do_reloc) | |
1191 | { | |
1192 | xtisa_errno = xtensa_isa_internal_error; | |
1193 | strcpy (xtisa_error_msg, "operand missing do_reloc function"); | |
1194 | return -1; | |
1195 | } | |
1196 | ||
1197 | if ((*intop->do_reloc) (valp, pc)) | |
1198 | { | |
1199 | xtisa_errno = xtensa_isa_bad_value; | |
1200 | sprintf (xtisa_error_msg, | |
1201 | "do_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc); | |
1202 | return -1; | |
1203 | } | |
1204 | ||
1205 | return 0; | |
e0001a05 NC |
1206 | } |
1207 | ||
1208 | ||
1209 | int | |
43cd72b9 BW |
1210 | xtensa_operand_undo_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd, |
1211 | uint32 *valp, uint32 pc) | |
e0001a05 | 1212 | { |
43cd72b9 BW |
1213 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1214 | xtensa_operand_internal *intop; | |
1215 | ||
1216 | intop = get_operand (intisa, opc, opnd); | |
1217 | if (!intop) return -1; | |
1218 | ||
1219 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0) | |
1220 | return 0; | |
1221 | ||
1222 | if (!intop->undo_reloc) | |
1223 | { | |
1224 | xtisa_errno = xtensa_isa_internal_error; | |
1225 | strcpy (xtisa_error_msg, "operand missing undo_reloc function"); | |
1226 | return -1; | |
1227 | } | |
1228 | ||
1229 | if ((*intop->undo_reloc) (valp, pc)) | |
1230 | { | |
1231 | xtisa_errno = xtensa_isa_bad_value; | |
1232 | sprintf (xtisa_error_msg, | |
1233 | "undo_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc); | |
1234 | return -1; | |
1235 | } | |
1236 | ||
1237 | return 0; | |
e0001a05 NC |
1238 | } |
1239 | ||
1240 | ||
43cd72b9 BW |
1241 | \f |
1242 | /* State Operands. */ | |
1243 | ||
1244 | ||
1245 | #define CHECK_STATE_OPERAND(INTISA,OPC,ICLASS,STOP,ERRVAL) \ | |
1246 | do { \ | |
1247 | if ((STOP) < 0 || (STOP) >= (ICLASS)->num_stateOperands) \ | |
1248 | { \ | |
1249 | xtisa_errno = xtensa_isa_bad_operand; \ | |
1250 | sprintf (xtisa_error_msg, "invalid state operand number (%d); " \ | |
1251 | "opcode \"%s\" has %d state operands", (STOP), \ | |
1252 | (INTISA)->opcodes[(OPC)].name, (ICLASS)->num_stateOperands); \ | |
1253 | return (ERRVAL); \ | |
1254 | } \ | |
1255 | } while (0) | |
1256 | ||
1257 | ||
1258 | xtensa_state | |
1259 | xtensa_stateOperand_state (xtensa_isa isa, xtensa_opcode opc, int stOp) | |
e0001a05 NC |
1260 | { |
1261 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1262 | xtensa_iclass_internal *iclass; |
1263 | int iclass_id; | |
1264 | ||
1265 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
1266 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1267 | iclass = &intisa->iclasses[iclass_id]; | |
1268 | CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, XTENSA_UNDEFINED); | |
1269 | return iclass->stateOperands[stOp].u.state; | |
e0001a05 NC |
1270 | } |
1271 | ||
1272 | ||
43cd72b9 BW |
1273 | char |
1274 | xtensa_stateOperand_inout (xtensa_isa isa, xtensa_opcode opc, int stOp) | |
e0001a05 NC |
1275 | { |
1276 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1277 | xtensa_iclass_internal *iclass; |
1278 | int iclass_id; | |
1279 | ||
1280 | CHECK_OPCODE (intisa, opc, 0); | |
1281 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1282 | iclass = &intisa->iclasses[iclass_id]; | |
1283 | CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, 0); | |
1284 | return iclass->stateOperands[stOp].inout; | |
1285 | } | |
e0001a05 | 1286 | |
43cd72b9 BW |
1287 | \f |
1288 | /* Interface Operands. */ | |
1289 | ||
1290 | ||
1291 | #define CHECK_INTERFACE_OPERAND(INTISA,OPC,ICLASS,IFOP,ERRVAL) \ | |
1292 | do { \ | |
1293 | if ((IFOP) < 0 || (IFOP) >= (ICLASS)->num_interfaceOperands) \ | |
1294 | { \ | |
1295 | xtisa_errno = xtensa_isa_bad_operand; \ | |
1296 | sprintf (xtisa_error_msg, "invalid interface operand number (%d); " \ | |
1297 | "opcode \"%s\" has %d interface operands", (IFOP), \ | |
1298 | (INTISA)->opcodes[(OPC)].name, \ | |
1299 | (ICLASS)->num_interfaceOperands); \ | |
1300 | return (ERRVAL); \ | |
1301 | } \ | |
1302 | } while (0) | |
1303 | ||
1304 | ||
1305 | xtensa_interface | |
1306 | xtensa_interfaceOperand_interface (xtensa_isa isa, xtensa_opcode opc, | |
1307 | int ifOp) | |
1308 | { | |
1309 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1310 | xtensa_iclass_internal *iclass; | |
1311 | int iclass_id; | |
1312 | ||
1313 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
1314 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1315 | iclass = &intisa->iclasses[iclass_id]; | |
1316 | CHECK_INTERFACE_OPERAND (intisa, opc, iclass, ifOp, XTENSA_UNDEFINED); | |
1317 | return iclass->interfaceOperands[ifOp]; | |
e0001a05 NC |
1318 | } |
1319 | ||
1320 | ||
43cd72b9 BW |
1321 | \f |
1322 | /* Register Files. */ | |
1323 | ||
1324 | ||
1325 | #define CHECK_REGFILE(INTISA,RF,ERRVAL) \ | |
1326 | do { \ | |
1327 | if ((RF) < 0 || (RF) >= (INTISA)->num_regfiles) \ | |
1328 | { \ | |
1329 | xtisa_errno = xtensa_isa_bad_regfile; \ | |
1330 | strcpy (xtisa_error_msg, "invalid regfile specifier"); \ | |
1331 | return (ERRVAL); \ | |
1332 | } \ | |
1333 | } while (0) | |
1334 | ||
1335 | ||
1336 | xtensa_regfile | |
1337 | xtensa_regfile_lookup (xtensa_isa isa, const char *name) | |
e0001a05 NC |
1338 | { |
1339 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1340 | int n; |
1341 | ||
1342 | if (!name || !*name) | |
1343 | { | |
1344 | xtisa_errno = xtensa_isa_bad_regfile; | |
1345 | strcpy (xtisa_error_msg, "invalid regfile name"); | |
1346 | return XTENSA_UNDEFINED; | |
1347 | } | |
1348 | ||
1349 | /* The expected number of regfiles is small; use a linear search. */ | |
1350 | for (n = 0; n < intisa->num_regfiles; n++) | |
1351 | { | |
1352 | if (!strcmp (intisa->regfiles[n].name, name)) | |
1353 | return n; | |
1354 | } | |
1355 | ||
1356 | xtisa_errno = xtensa_isa_bad_regfile; | |
1357 | sprintf (xtisa_error_msg, "regfile \"%s\" not recognized", name); | |
e0001a05 NC |
1358 | return XTENSA_UNDEFINED; |
1359 | } | |
1360 | ||
1361 | ||
43cd72b9 BW |
1362 | xtensa_regfile |
1363 | xtensa_regfile_lookup_shortname (xtensa_isa isa, const char *shortname) | |
e0001a05 NC |
1364 | { |
1365 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
e0001a05 NC |
1366 | int n; |
1367 | ||
43cd72b9 BW |
1368 | if (!shortname || !*shortname) |
1369 | { | |
1370 | xtisa_errno = xtensa_isa_bad_regfile; | |
1371 | strcpy (xtisa_error_msg, "invalid regfile shortname"); | |
1372 | return XTENSA_UNDEFINED; | |
1373 | } | |
e0001a05 | 1374 | |
43cd72b9 BW |
1375 | /* The expected number of regfiles is small; use a linear search. */ |
1376 | for (n = 0; n < intisa->num_regfiles; n++) | |
1377 | { | |
1378 | /* Ignore regfile views since they always have the same shortnames | |
1379 | as their parents. */ | |
1380 | if (intisa->regfiles[n].parent != n) | |
1381 | continue; | |
1382 | if (!strcmp (intisa->regfiles[n].shortname, shortname)) | |
1383 | return n; | |
1384 | } | |
e0001a05 | 1385 | |
43cd72b9 BW |
1386 | xtisa_errno = xtensa_isa_bad_regfile; |
1387 | sprintf (xtisa_error_msg, "regfile shortname \"%s\" not recognized", | |
1388 | shortname); | |
1389 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1390 | } |
1391 | ||
1392 | ||
1393 | const char * | |
43cd72b9 | 1394 | xtensa_regfile_name (xtensa_isa isa, xtensa_regfile rf) |
e0001a05 NC |
1395 | { |
1396 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1397 | CHECK_REGFILE (intisa, rf, NULL); |
1398 | return intisa->regfiles[rf].name; | |
e0001a05 NC |
1399 | } |
1400 | ||
1401 | ||
43cd72b9 BW |
1402 | const char * |
1403 | xtensa_regfile_shortname (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1404 | { |
1405 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1406 | CHECK_REGFILE (intisa, rf, NULL); |
1407 | return intisa->regfiles[rf].shortname; | |
e0001a05 NC |
1408 | } |
1409 | ||
1410 | ||
43cd72b9 BW |
1411 | xtensa_regfile |
1412 | xtensa_regfile_view_parent (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1413 | { |
1414 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1415 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1416 | return intisa->regfiles[rf].parent; | |
e0001a05 NC |
1417 | } |
1418 | ||
1419 | ||
1420 | int | |
43cd72b9 | 1421 | xtensa_regfile_num_bits (xtensa_isa isa, xtensa_regfile rf) |
e0001a05 NC |
1422 | { |
1423 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1424 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1425 | return intisa->regfiles[rf].num_bits; | |
e0001a05 NC |
1426 | } |
1427 | ||
1428 | ||
43cd72b9 BW |
1429 | int |
1430 | xtensa_regfile_num_entries (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1431 | { |
1432 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1433 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1434 | return intisa->regfiles[rf].num_entries; | |
e0001a05 NC |
1435 | } |
1436 | ||
43cd72b9 BW |
1437 | \f |
1438 | /* Processor States. */ | |
e0001a05 | 1439 | |
e0001a05 | 1440 | |
43cd72b9 BW |
1441 | #define CHECK_STATE(INTISA,ST,ERRVAL) \ |
1442 | do { \ | |
1443 | if ((ST) < 0 || (ST) >= (INTISA)->num_states) \ | |
1444 | { \ | |
1445 | xtisa_errno = xtensa_isa_bad_state; \ | |
1446 | strcpy (xtisa_error_msg, "invalid state specifier"); \ | |
1447 | return (ERRVAL); \ | |
1448 | } \ | |
1449 | } while (0) | |
e0001a05 NC |
1450 | |
1451 | ||
43cd72b9 BW |
1452 | xtensa_state |
1453 | xtensa_state_lookup (xtensa_isa isa, const char *name) | |
e0001a05 | 1454 | { |
43cd72b9 BW |
1455 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1456 | xtensa_lookup_entry entry, *result; | |
e0001a05 | 1457 | |
43cd72b9 BW |
1458 | if (!name || !*name) |
1459 | { | |
1460 | xtisa_errno = xtensa_isa_bad_state; | |
1461 | strcpy (xtisa_error_msg, "invalid state name"); | |
1462 | return XTENSA_UNDEFINED; | |
1463 | } | |
e0001a05 | 1464 | |
43cd72b9 BW |
1465 | entry.key = name; |
1466 | result = bsearch (&entry, intisa->state_lookup_table, intisa->num_states, | |
1467 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
e0001a05 | 1468 | |
43cd72b9 BW |
1469 | if (!result) |
1470 | { | |
1471 | xtisa_errno = xtensa_isa_bad_state; | |
1472 | sprintf (xtisa_error_msg, "state \"%s\" not recognized", name); | |
1473 | return XTENSA_UNDEFINED; | |
1474 | } | |
e0001a05 | 1475 | |
43cd72b9 | 1476 | return result->u.state; |
e0001a05 NC |
1477 | } |
1478 | ||
1479 | ||
43cd72b9 BW |
1480 | const char * |
1481 | xtensa_state_name (xtensa_isa isa, xtensa_state st) | |
e0001a05 | 1482 | { |
43cd72b9 BW |
1483 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1484 | CHECK_STATE (intisa, st, NULL); | |
1485 | return intisa->states[st].name; | |
e0001a05 NC |
1486 | } |
1487 | ||
1488 | ||
43cd72b9 BW |
1489 | int |
1490 | xtensa_state_num_bits (xtensa_isa isa, xtensa_state st) | |
e0001a05 | 1491 | { |
43cd72b9 BW |
1492 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1493 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1494 | return intisa->states[st].num_bits; | |
e0001a05 NC |
1495 | } |
1496 | ||
1497 | ||
1498 | int | |
43cd72b9 | 1499 | xtensa_state_is_exported (xtensa_isa isa, xtensa_state st) |
e0001a05 | 1500 | { |
43cd72b9 BW |
1501 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1502 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1503 | if ((intisa->states[st].flags & XTENSA_STATE_IS_EXPORTED) != 0) | |
1504 | return 1; | |
1505 | return 0; | |
e0001a05 NC |
1506 | } |
1507 | ||
43cd72b9 BW |
1508 | \f |
1509 | /* Sysregs. */ | |
1510 | ||
1511 | ||
1512 | #define CHECK_SYSREG(INTISA,SYSREG,ERRVAL) \ | |
1513 | do { \ | |
1514 | if ((SYSREG) < 0 || (SYSREG) >= (INTISA)->num_sysregs) \ | |
1515 | { \ | |
1516 | xtisa_errno = xtensa_isa_bad_sysreg; \ | |
1517 | strcpy (xtisa_error_msg, "invalid sysreg specifier"); \ | |
1518 | return (ERRVAL); \ | |
1519 | } \ | |
1520 | } while (0) | |
e0001a05 | 1521 | |
43cd72b9 BW |
1522 | |
1523 | xtensa_sysreg | |
1524 | xtensa_sysreg_lookup (xtensa_isa isa, int num, int is_user) | |
e0001a05 | 1525 | { |
43cd72b9 BW |
1526 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1527 | ||
1528 | if (is_user != 0) | |
1529 | is_user = 1; | |
1530 | ||
1531 | if (num < 0 || num > intisa->max_sysreg_num[is_user] | |
1532 | || intisa->sysreg_table[is_user][num] == XTENSA_UNDEFINED) | |
1533 | { | |
1534 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1535 | strcpy (xtisa_error_msg, "sysreg not recognized"); | |
1536 | return XTENSA_UNDEFINED; | |
1537 | } | |
1538 | ||
1539 | return intisa->sysreg_table[is_user][num]; | |
e0001a05 NC |
1540 | } |
1541 | ||
1542 | ||
43cd72b9 BW |
1543 | xtensa_sysreg |
1544 | xtensa_sysreg_lookup_name (xtensa_isa isa, const char *name) | |
e0001a05 | 1545 | { |
43cd72b9 BW |
1546 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1547 | xtensa_lookup_entry entry, *result; | |
e0001a05 | 1548 | |
43cd72b9 BW |
1549 | if (!name || !*name) |
1550 | { | |
1551 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1552 | strcpy (xtisa_error_msg, "invalid sysreg name"); | |
1553 | return XTENSA_UNDEFINED; | |
1554 | } | |
e0001a05 | 1555 | |
43cd72b9 BW |
1556 | entry.key = name; |
1557 | result = bsearch (&entry, intisa->sysreg_lookup_table, intisa->num_sysregs, | |
1558 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
e0001a05 | 1559 | |
43cd72b9 BW |
1560 | if (!result) |
1561 | { | |
1562 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1563 | sprintf (xtisa_error_msg, "sysreg \"%s\" not recognized", name); | |
1564 | return XTENSA_UNDEFINED; | |
1565 | } | |
1566 | ||
1567 | return result->u.sysreg; | |
e0001a05 NC |
1568 | } |
1569 | ||
1570 | ||
43cd72b9 BW |
1571 | const char * |
1572 | xtensa_sysreg_name (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1573 | { |
43cd72b9 BW |
1574 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1575 | CHECK_SYSREG (intisa, sysreg, NULL); | |
1576 | return intisa->sysregs[sysreg].name; | |
e0001a05 NC |
1577 | } |
1578 | ||
1579 | ||
43cd72b9 BW |
1580 | int |
1581 | xtensa_sysreg_number (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1582 | { |
43cd72b9 BW |
1583 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1584 | CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED); | |
1585 | return intisa->sysregs[sysreg].number; | |
e0001a05 NC |
1586 | } |
1587 | ||
1588 | ||
43cd72b9 BW |
1589 | int |
1590 | xtensa_sysreg_is_user (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1591 | { |
43cd72b9 BW |
1592 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1593 | CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED); | |
1594 | if (intisa->sysregs[sysreg].is_user) | |
1595 | return 1; | |
1596 | return 0; | |
e0001a05 NC |
1597 | } |
1598 | ||
43cd72b9 BW |
1599 | \f |
1600 | /* Interfaces. */ | |
e0001a05 | 1601 | |
e0001a05 | 1602 | |
43cd72b9 BW |
1603 | #define CHECK_INTERFACE(INTISA,INTF,ERRVAL) \ |
1604 | do { \ | |
1605 | if ((INTF) < 0 || (INTF) >= (INTISA)->num_interfaces) \ | |
1606 | { \ | |
1607 | xtisa_errno = xtensa_isa_bad_interface; \ | |
1608 | strcpy (xtisa_error_msg, "invalid interface specifier"); \ | |
1609 | return (ERRVAL); \ | |
1610 | } \ | |
1611 | } while (0) | |
1612 | ||
1613 | ||
1614 | xtensa_interface | |
1615 | xtensa_interface_lookup (xtensa_isa isa, const char *ifname) | |
e0001a05 NC |
1616 | { |
1617 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 | 1618 | xtensa_lookup_entry entry, *result; |
e0001a05 | 1619 | |
43cd72b9 | 1620 | if (!ifname || !*ifname) |
e0001a05 | 1621 | { |
43cd72b9 BW |
1622 | xtisa_errno = xtensa_isa_bad_interface; |
1623 | strcpy (xtisa_error_msg, "invalid interface name"); | |
1624 | return XTENSA_UNDEFINED; | |
e0001a05 | 1625 | } |
43cd72b9 BW |
1626 | |
1627 | entry.key = ifname; | |
1628 | result = bsearch (&entry, intisa->interface_lookup_table, | |
1629 | intisa->num_interfaces, | |
1630 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
1631 | ||
1632 | if (!result) | |
e0001a05 | 1633 | { |
43cd72b9 BW |
1634 | xtisa_errno = xtensa_isa_bad_interface; |
1635 | sprintf (xtisa_error_msg, "interface \"%s\" not recognized", ifname); | |
1636 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1637 | } |
1638 | ||
43cd72b9 BW |
1639 | return result->u.intf; |
1640 | } | |
e0001a05 | 1641 | |
e0001a05 | 1642 | |
43cd72b9 BW |
1643 | const char * |
1644 | xtensa_interface_name (xtensa_isa isa, xtensa_interface intf) | |
1645 | { | |
1646 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1647 | CHECK_INTERFACE (intisa, intf, NULL); | |
1648 | return intisa->interfaces[intf].name; | |
1649 | } | |
e0001a05 | 1650 | |
43cd72b9 BW |
1651 | |
1652 | int | |
1653 | xtensa_interface_num_bits (xtensa_isa isa, xtensa_interface intf) | |
1654 | { | |
1655 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1656 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1657 | return intisa->interfaces[intf].num_bits; | |
e0001a05 NC |
1658 | } |
1659 | ||
43cd72b9 BW |
1660 | |
1661 | char | |
1662 | xtensa_interface_inout (xtensa_isa isa, xtensa_interface intf) | |
e0001a05 NC |
1663 | { |
1664 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1665 | CHECK_INTERFACE (intisa, intf, 0); |
1666 | return intisa->interfaces[intf].inout; | |
1667 | } | |
e0001a05 | 1668 | |
43cd72b9 BW |
1669 | |
1670 | int | |
1671 | xtensa_interface_has_side_effect (xtensa_isa isa, xtensa_interface intf) | |
1672 | { | |
1673 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1674 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1675 | if ((intisa->interfaces[intf].flags & XTENSA_INTERFACE_HAS_SIDE_EFFECT) != 0) | |
1676 | return 1; | |
1677 | return 0; | |
1678 | } | |
1679 | ||
a1ace8d8 BW |
1680 | |
1681 | int | |
1682 | xtensa_interface_class_id (xtensa_isa isa, xtensa_interface intf) | |
1683 | { | |
1684 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1685 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1686 | return intisa->interfaces[intf].class_id; | |
1687 | } | |
1688 | ||
43cd72b9 BW |
1689 | \f |
1690 | /* Functional Units. */ | |
1691 | ||
1692 | ||
1693 | #define CHECK_FUNCUNIT(INTISA,FUN,ERRVAL) \ | |
1694 | do { \ | |
1695 | if ((FUN) < 0 || (FUN) >= (INTISA)->num_funcUnits) \ | |
1696 | { \ | |
1697 | xtisa_errno = xtensa_isa_bad_funcUnit; \ | |
1698 | strcpy (xtisa_error_msg, "invalid functional unit specifier"); \ | |
1699 | return (ERRVAL); \ | |
1700 | } \ | |
1701 | } while (0) | |
1702 | ||
1703 | ||
1704 | xtensa_funcUnit | |
1705 | xtensa_funcUnit_lookup (xtensa_isa isa, const char *fname) | |
1706 | { | |
1707 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1708 | xtensa_lookup_entry entry, *result; | |
1709 | ||
1710 | if (!fname || !*fname) | |
e0001a05 | 1711 | { |
43cd72b9 BW |
1712 | xtisa_errno = xtensa_isa_bad_funcUnit; |
1713 | strcpy (xtisa_error_msg, "invalid functional unit name"); | |
1714 | return XTENSA_UNDEFINED; | |
e0001a05 | 1715 | } |
43cd72b9 BW |
1716 | |
1717 | entry.key = fname; | |
1718 | result = bsearch (&entry, intisa->funcUnit_lookup_table, | |
1719 | intisa->num_funcUnits, | |
1720 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
1721 | ||
1722 | if (!result) | |
e0001a05 | 1723 | { |
43cd72b9 BW |
1724 | xtisa_errno = xtensa_isa_bad_funcUnit; |
1725 | sprintf (xtisa_error_msg, | |
1726 | "functional unit \"%s\" not recognized", fname); | |
1727 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1728 | } |
1729 | ||
43cd72b9 BW |
1730 | return result->u.fun; |
1731 | } | |
e0001a05 | 1732 | |
e0001a05 | 1733 | |
43cd72b9 BW |
1734 | const char * |
1735 | xtensa_funcUnit_name (xtensa_isa isa, xtensa_funcUnit fun) | |
1736 | { | |
1737 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1738 | CHECK_FUNCUNIT (intisa, fun, NULL); | |
1739 | return intisa->funcUnits[fun].name; | |
1740 | } | |
1741 | ||
1742 | ||
1743 | int | |
1744 | xtensa_funcUnit_num_copies (xtensa_isa isa, xtensa_funcUnit fun) | |
1745 | { | |
1746 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1747 | CHECK_FUNCUNIT (intisa, fun, XTENSA_UNDEFINED); | |
1748 | return intisa->funcUnits[fun].num_copies; | |
e0001a05 NC |
1749 | } |
1750 |