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