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e0001a05 | 1 | /* Configurable Xtensa ISA support. |
fd67aa11 | 2 | Copyright (C) 2003-2024 Free Software Foundation, Inc. |
e0001a05 NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
e0001a05 NC |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
e0001a05 | 20 | |
43cd72b9 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
43cd72b9 | 23 | #include "libbfd.h" |
e0001a05 NC |
24 | #include "xtensa-isa.h" |
25 | #include "xtensa-isa-internal.h" | |
d0a2cfbd | 26 | #include "xtensa-dynconfig.h" |
e0001a05 | 27 | |
3fafa2e2 AM |
28 | static xtensa_isa_status xtisa_errno; |
29 | static char xtisa_error_msg[1024]; | |
43cd72b9 BW |
30 | |
31 | ||
32 | xtensa_isa_status | |
33 | xtensa_isa_errno (xtensa_isa isa __attribute__ ((unused))) | |
34 | { | |
35 | return xtisa_errno; | |
36 | } | |
37 | ||
e0001a05 | 38 | |
43cd72b9 BW |
39 | char * |
40 | xtensa_isa_error_msg (xtensa_isa isa __attribute__ ((unused))) | |
e0001a05 | 41 | { |
43cd72b9 BW |
42 | return xtisa_error_msg; |
43 | } | |
e0001a05 | 44 | |
43cd72b9 BW |
45 | |
46 | #define CHECK_ALLOC(MEM,ERRVAL) \ | |
47 | do { \ | |
48 | if ((MEM) == 0) \ | |
49 | { \ | |
50 | xtisa_errno = xtensa_isa_out_of_memory; \ | |
51 | strcpy (xtisa_error_msg, "out of memory"); \ | |
52 | return (ERRVAL); \ | |
53 | } \ | |
54 | } while (0) | |
55 | ||
56 | #define CHECK_ALLOC_FOR_INIT(MEM,ERRVAL,ERRNO_P,ERROR_MSG_P) \ | |
57 | do { \ | |
58 | if ((MEM) == 0) \ | |
59 | { \ | |
60 | xtisa_errno = xtensa_isa_out_of_memory; \ | |
61 | strcpy (xtisa_error_msg, "out of memory"); \ | |
62 | if (ERRNO_P) *(ERRNO_P) = xtisa_errno; \ | |
63 | if (ERROR_MSG_P) *(ERROR_MSG_P) = xtisa_error_msg; \ | |
64 | return (ERRVAL); \ | |
65 | } \ | |
66 | } while (0) | |
67 | ||
1fbc7e7a | 68 | |
43cd72b9 BW |
69 | \f |
70 | /* Instruction buffers. */ | |
71 | ||
72 | int | |
73 | xtensa_insnbuf_size (xtensa_isa isa) | |
74 | { | |
75 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
76 | return intisa->insnbuf_size; | |
e0001a05 NC |
77 | } |
78 | ||
79 | ||
43cd72b9 BW |
80 | xtensa_insnbuf |
81 | xtensa_insnbuf_alloc (xtensa_isa isa) | |
82 | { | |
83 | xtensa_insnbuf result = (xtensa_insnbuf) | |
84 | malloc (xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word)); | |
85 | CHECK_ALLOC (result, 0); | |
86 | return result; | |
87 | } | |
88 | ||
89 | ||
90 | void | |
91 | xtensa_insnbuf_free (xtensa_isa isa __attribute__ ((unused)), | |
92 | xtensa_insnbuf buf) | |
93 | { | |
94 | free (buf); | |
95 | } | |
96 | ||
97 | ||
98 | /* Given <byte_index>, the index of a byte in a xtensa_insnbuf, our | |
99 | internal representation of a xtensa instruction word, return the index of | |
100 | its word and the bit index of its low order byte in the xtensa_insnbuf. */ | |
101 | ||
102 | static inline int | |
103 | byte_to_word_index (int byte_index) | |
104 | { | |
105 | return byte_index / sizeof (xtensa_insnbuf_word); | |
106 | } | |
107 | ||
108 | ||
109 | static inline int | |
110 | byte_to_bit_index (int byte_index) | |
111 | { | |
112 | return (byte_index & 0x3) * 8; | |
113 | } | |
114 | ||
115 | ||
116 | /* Copy an instruction in the 32-bit words pointed at by "insn" to | |
117 | characters pointed at by "cp". This is more complicated than you | |
118 | might think because we want 16-bit instructions in bytes 2 & 3 for | |
119 | big-endian configurations. This function allows us to specify | |
120 | which byte in "insn" to start with and which way to increment, | |
121 | allowing trivial implementation for both big- and little-endian | |
122 | configurations....and it seems to make pretty good code for | |
123 | both. */ | |
124 | ||
125 | int | |
f075ee0c AM |
126 | xtensa_insnbuf_to_chars (xtensa_isa isa, |
127 | const xtensa_insnbuf insn, | |
128 | unsigned char *cp, | |
43cd72b9 BW |
129 | int num_chars) |
130 | { | |
131 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
132 | int insn_size = xtensa_isa_maxlength (isa); | |
133 | int fence_post, start, increment, i, byte_count; | |
134 | xtensa_format fmt; | |
135 | ||
136 | if (num_chars == 0) | |
137 | num_chars = insn_size; | |
138 | ||
139 | if (intisa->is_big_endian) | |
140 | { | |
141 | start = insn_size - 1; | |
142 | increment = -1; | |
143 | } | |
144 | else | |
145 | { | |
146 | start = 0; | |
147 | increment = 1; | |
148 | } | |
149 | ||
150 | /* Find the instruction format. Do nothing if the buffer does not contain | |
151 | a valid instruction since we need to know how many bytes to copy. */ | |
152 | fmt = xtensa_format_decode (isa, insn); | |
153 | if (fmt == XTENSA_UNDEFINED) | |
154 | return XTENSA_UNDEFINED; | |
155 | ||
156 | byte_count = xtensa_format_length (isa, fmt); | |
157 | if (byte_count == XTENSA_UNDEFINED) | |
158 | return XTENSA_UNDEFINED; | |
159 | ||
160 | if (byte_count > num_chars) | |
161 | { | |
162 | xtisa_errno = xtensa_isa_buffer_overflow; | |
163 | strcpy (xtisa_error_msg, "output buffer too small for instruction"); | |
164 | return XTENSA_UNDEFINED; | |
165 | } | |
166 | ||
167 | fence_post = start + (byte_count * increment); | |
168 | ||
169 | for (i = start; i != fence_post; i += increment, ++cp) | |
170 | { | |
171 | int word_inx = byte_to_word_index (i); | |
172 | int bit_inx = byte_to_bit_index (i); | |
173 | ||
174 | *cp = (insn[word_inx] >> bit_inx) & 0xff; | |
175 | } | |
176 | ||
177 | return byte_count; | |
178 | } | |
179 | ||
180 | ||
181 | /* Inward conversion from byte stream to xtensa_insnbuf. See | |
182 | xtensa_insnbuf_to_chars for a discussion of why this is complicated | |
183 | by endianness. */ | |
68ffbac6 | 184 | |
43cd72b9 | 185 | void |
f075ee0c AM |
186 | xtensa_insnbuf_from_chars (xtensa_isa isa, |
187 | xtensa_insnbuf insn, | |
188 | const unsigned char *cp, | |
43cd72b9 BW |
189 | int num_chars) |
190 | { | |
191 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
192 | int max_size, insn_size, fence_post, start, increment, i; | |
193 | ||
194 | max_size = xtensa_isa_maxlength (isa); | |
195 | ||
196 | /* Decode the instruction length so we know how many bytes to read. */ | |
197 | insn_size = (intisa->length_decode_fn) (cp); | |
198 | if (insn_size == XTENSA_UNDEFINED) | |
199 | { | |
200 | /* This should never happen when the byte stream contains a | |
201 | valid instruction. Just read the maximum number of bytes.... */ | |
202 | insn_size = max_size; | |
203 | } | |
204 | ||
205 | if (num_chars == 0 || num_chars > insn_size) | |
206 | num_chars = insn_size; | |
207 | ||
208 | if (intisa->is_big_endian) | |
209 | { | |
210 | start = max_size - 1; | |
211 | increment = -1; | |
212 | } | |
213 | else | |
214 | { | |
215 | start = 0; | |
216 | increment = 1; | |
217 | } | |
218 | ||
219 | fence_post = start + (num_chars * increment); | |
220 | memset (insn, 0, xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word)); | |
221 | ||
222 | for (i = start; i != fence_post; i += increment, ++cp) | |
223 | { | |
224 | int word_inx = byte_to_word_index (i); | |
225 | int bit_inx = byte_to_bit_index (i); | |
226 | ||
e76832f1 | 227 | insn[word_inx] |= (unsigned) (*cp & 0xff) << bit_inx; |
43cd72b9 BW |
228 | } |
229 | } | |
230 | ||
43cd72b9 BW |
231 | \f |
232 | /* ISA information. */ | |
233 | ||
234 | extern xtensa_isa_internal xtensa_modules; | |
235 | ||
d0a2cfbd MF |
236 | static xtensa_isa_internal *xtensa_get_modules (void) |
237 | { | |
238 | static xtensa_isa_internal *modules; | |
239 | ||
240 | if (!modules) | |
241 | modules = (xtensa_isa_internal *) xtensa_load_config ("xtensa_modules", | |
242 | &xtensa_modules, | |
243 | NULL); | |
244 | return modules; | |
245 | } | |
246 | ||
e0001a05 | 247 | xtensa_isa |
43cd72b9 | 248 | xtensa_isa_init (xtensa_isa_status *errno_p, char **error_msg_p) |
e0001a05 | 249 | { |
d0a2cfbd | 250 | xtensa_isa_internal *isa = xtensa_get_modules (); |
43cd72b9 BW |
251 | int n, is_user; |
252 | ||
253 | /* Set up the opcode name lookup table. */ | |
254 | isa->opname_lookup_table = | |
255 | bfd_malloc (isa->num_opcodes * sizeof (xtensa_lookup_entry)); | |
256 | CHECK_ALLOC_FOR_INIT (isa->opname_lookup_table, NULL, errno_p, error_msg_p); | |
257 | for (n = 0; n < isa->num_opcodes; n++) | |
258 | { | |
259 | isa->opname_lookup_table[n].key = isa->opcodes[n].name; | |
260 | isa->opname_lookup_table[n].u.opcode = n; | |
261 | } | |
262 | qsort (isa->opname_lookup_table, isa->num_opcodes, | |
263 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
e0001a05 | 264 | |
43cd72b9 BW |
265 | /* Set up the state name lookup table. */ |
266 | isa->state_lookup_table = | |
267 | bfd_malloc (isa->num_states * sizeof (xtensa_lookup_entry)); | |
268 | CHECK_ALLOC_FOR_INIT (isa->state_lookup_table, NULL, errno_p, error_msg_p); | |
269 | for (n = 0; n < isa->num_states; n++) | |
e0001a05 | 270 | { |
43cd72b9 BW |
271 | isa->state_lookup_table[n].key = isa->states[n].name; |
272 | isa->state_lookup_table[n].u.state = n; | |
273 | } | |
274 | qsort (isa->state_lookup_table, isa->num_states, | |
275 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
276 | ||
277 | /* Set up the sysreg name lookup table. */ | |
278 | isa->sysreg_lookup_table = | |
279 | bfd_malloc (isa->num_sysregs * sizeof (xtensa_lookup_entry)); | |
280 | CHECK_ALLOC_FOR_INIT (isa->sysreg_lookup_table, NULL, errno_p, error_msg_p); | |
281 | for (n = 0; n < isa->num_sysregs; n++) | |
282 | { | |
283 | isa->sysreg_lookup_table[n].key = isa->sysregs[n].name; | |
284 | isa->sysreg_lookup_table[n].u.sysreg = n; | |
285 | } | |
286 | qsort (isa->sysreg_lookup_table, isa->num_sysregs, | |
287 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
288 | ||
289 | /* Set up the user & system sysreg number tables. */ | |
290 | for (is_user = 0; is_user < 2; is_user++) | |
291 | { | |
292 | isa->sysreg_table[is_user] = | |
293 | bfd_malloc ((isa->max_sysreg_num[is_user] + 1) | |
294 | * sizeof (xtensa_sysreg)); | |
295 | CHECK_ALLOC_FOR_INIT (isa->sysreg_table[is_user], NULL, | |
296 | errno_p, error_msg_p); | |
297 | ||
298 | for (n = 0; n <= isa->max_sysreg_num[is_user]; n++) | |
299 | isa->sysreg_table[is_user][n] = XTENSA_UNDEFINED; | |
300 | } | |
301 | for (n = 0; n < isa->num_sysregs; n++) | |
302 | { | |
303 | xtensa_sysreg_internal *sreg = &isa->sysregs[n]; | |
304 | is_user = sreg->is_user; | |
305 | ||
d84ed528 MF |
306 | if (sreg->number >= 0) |
307 | isa->sysreg_table[is_user][sreg->number] = n; | |
43cd72b9 BW |
308 | } |
309 | ||
310 | /* Set up the interface lookup table. */ | |
68ffbac6 | 311 | isa->interface_lookup_table = |
43cd72b9 BW |
312 | bfd_malloc (isa->num_interfaces * sizeof (xtensa_lookup_entry)); |
313 | CHECK_ALLOC_FOR_INIT (isa->interface_lookup_table, NULL, errno_p, | |
314 | error_msg_p); | |
315 | for (n = 0; n < isa->num_interfaces; n++) | |
316 | { | |
317 | isa->interface_lookup_table[n].key = isa->interfaces[n].name; | |
318 | isa->interface_lookup_table[n].u.intf = n; | |
319 | } | |
320 | qsort (isa->interface_lookup_table, isa->num_interfaces, | |
321 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
322 | ||
323 | /* Set up the funcUnit lookup table. */ | |
68ffbac6 | 324 | isa->funcUnit_lookup_table = |
43cd72b9 BW |
325 | bfd_malloc (isa->num_funcUnits * sizeof (xtensa_lookup_entry)); |
326 | CHECK_ALLOC_FOR_INIT (isa->funcUnit_lookup_table, NULL, errno_p, | |
327 | error_msg_p); | |
328 | for (n = 0; n < isa->num_funcUnits; n++) | |
329 | { | |
330 | isa->funcUnit_lookup_table[n].key = isa->funcUnits[n].name; | |
331 | isa->funcUnit_lookup_table[n].u.fun = n; | |
332 | } | |
333 | qsort (isa->funcUnit_lookup_table, isa->num_funcUnits, | |
334 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
335 | ||
336 | isa->insnbuf_size = ((isa->insn_size + sizeof (xtensa_insnbuf_word) - 1) / | |
337 | sizeof (xtensa_insnbuf_word)); | |
338 | ||
339 | return (xtensa_isa) isa; | |
340 | } | |
341 | ||
342 | ||
343 | void | |
344 | xtensa_isa_free (xtensa_isa isa) | |
345 | { | |
346 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
347 | int n; | |
348 | ||
349 | /* With this version of the code, the xtensa_isa structure is not | |
350 | dynamically allocated, so this function is not essential. Free | |
351 | the memory allocated by xtensa_isa_init and restore the xtensa_isa | |
352 | structure to its initial state. */ | |
353 | ||
c9594989 AM |
354 | free (intisa->opname_lookup_table); |
355 | intisa->opname_lookup_table = 0; | |
e0001a05 | 356 | |
c9594989 AM |
357 | free (intisa->state_lookup_table); |
358 | intisa->state_lookup_table = 0; | |
359 | ||
360 | free (intisa->sysreg_lookup_table); | |
361 | intisa->sysreg_lookup_table = 0; | |
43cd72b9 | 362 | |
43cd72b9 BW |
363 | for (n = 0; n < 2; n++) |
364 | { | |
c9594989 AM |
365 | free (intisa->sysreg_table[n]); |
366 | intisa->sysreg_table[n] = 0; | |
e0001a05 | 367 | } |
43cd72b9 | 368 | |
c9594989 AM |
369 | free (intisa->interface_lookup_table); |
370 | intisa->interface_lookup_table = 0; | |
43cd72b9 | 371 | |
c9594989 AM |
372 | free (intisa->funcUnit_lookup_table); |
373 | intisa->funcUnit_lookup_table = 0; | |
43cd72b9 BW |
374 | } |
375 | ||
376 | ||
377 | int | |
378 | xtensa_isa_name_compare (const void *v1, const void *v2) | |
379 | { | |
380 | xtensa_lookup_entry *e1 = (xtensa_lookup_entry *) v1; | |
381 | xtensa_lookup_entry *e2 = (xtensa_lookup_entry *) v2; | |
382 | ||
383 | return strcasecmp (e1->key, e2->key); | |
384 | } | |
385 | ||
386 | ||
387 | int | |
388 | xtensa_isa_maxlength (xtensa_isa isa) | |
389 | { | |
390 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
391 | return intisa->insn_size; | |
392 | } | |
393 | ||
394 | ||
395 | int | |
f075ee0c | 396 | xtensa_isa_length_from_chars (xtensa_isa isa, const unsigned char *cp) |
43cd72b9 BW |
397 | { |
398 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
399 | return (intisa->length_decode_fn) (cp); | |
400 | } | |
401 | ||
402 | ||
403 | int | |
68ffbac6 | 404 | xtensa_isa_num_pipe_stages (xtensa_isa isa) |
43cd72b9 | 405 | { |
43cd72b9 BW |
406 | xtensa_opcode opcode; |
407 | xtensa_funcUnit_use *use; | |
1fbc7e7a | 408 | int num_opcodes, num_uses; |
77cba8a3 BW |
409 | int i, stage; |
410 | static int max_stage = XTENSA_UNDEFINED; | |
411 | ||
412 | /* Only compute the value once. */ | |
413 | if (max_stage != XTENSA_UNDEFINED) | |
414 | return max_stage + 1; | |
43cd72b9 BW |
415 | |
416 | num_opcodes = xtensa_isa_num_opcodes (isa); | |
417 | for (opcode = 0; opcode < num_opcodes; opcode++) | |
418 | { | |
419 | num_uses = xtensa_opcode_num_funcUnit_uses (isa, opcode); | |
420 | for (i = 0; i < num_uses; i++) | |
421 | { | |
422 | use = xtensa_opcode_funcUnit_use (isa, opcode, i); | |
423 | stage = use->stage; | |
424 | if (stage > max_stage) | |
425 | max_stage = stage; | |
426 | } | |
427 | } | |
428 | ||
429 | return max_stage + 1; | |
430 | } | |
431 | ||
432 | ||
433 | int | |
434 | xtensa_isa_num_formats (xtensa_isa isa) | |
435 | { | |
436 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
437 | return intisa->num_formats; | |
438 | } | |
439 | ||
440 | ||
441 | int | |
442 | xtensa_isa_num_opcodes (xtensa_isa isa) | |
443 | { | |
444 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
445 | return intisa->num_opcodes; | |
446 | } | |
447 | ||
448 | ||
449 | int | |
450 | xtensa_isa_num_regfiles (xtensa_isa isa) | |
451 | { | |
452 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
453 | return intisa->num_regfiles; | |
454 | } | |
455 | ||
456 | ||
457 | int | |
458 | xtensa_isa_num_states (xtensa_isa isa) | |
459 | { | |
460 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
461 | return intisa->num_states; | |
462 | } | |
463 | ||
464 | ||
465 | int | |
466 | xtensa_isa_num_sysregs (xtensa_isa isa) | |
467 | { | |
468 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
469 | return intisa->num_sysregs; | |
470 | } | |
471 | ||
472 | ||
473 | int | |
474 | xtensa_isa_num_interfaces (xtensa_isa isa) | |
475 | { | |
476 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
477 | return intisa->num_interfaces; | |
478 | } | |
479 | ||
480 | ||
481 | int | |
482 | xtensa_isa_num_funcUnits (xtensa_isa isa) | |
483 | { | |
484 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
485 | return intisa->num_funcUnits; | |
486 | } | |
487 | ||
488 | ||
489 | \f | |
490 | /* Instruction formats. */ | |
491 | ||
492 | ||
493 | #define CHECK_FORMAT(INTISA,FMT,ERRVAL) \ | |
494 | do { \ | |
495 | if ((FMT) < 0 || (FMT) >= (INTISA)->num_formats) \ | |
496 | { \ | |
497 | xtisa_errno = xtensa_isa_bad_format; \ | |
498 | strcpy (xtisa_error_msg, "invalid format specifier"); \ | |
499 | return (ERRVAL); \ | |
500 | } \ | |
501 | } while (0) | |
502 | ||
503 | ||
504 | #define CHECK_SLOT(INTISA,FMT,SLOT,ERRVAL) \ | |
505 | do { \ | |
506 | if ((SLOT) < 0 || (SLOT) >= (INTISA)->formats[FMT].num_slots) \ | |
507 | { \ | |
508 | xtisa_errno = xtensa_isa_bad_slot; \ | |
509 | strcpy (xtisa_error_msg, "invalid slot specifier"); \ | |
510 | return (ERRVAL); \ | |
511 | } \ | |
512 | } while (0) | |
513 | ||
514 | ||
515 | const char * | |
516 | xtensa_format_name (xtensa_isa isa, xtensa_format fmt) | |
517 | { | |
518 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
519 | CHECK_FORMAT (intisa, fmt, NULL); | |
520 | return intisa->formats[fmt].name; | |
521 | } | |
522 | ||
523 | ||
524 | xtensa_format | |
525 | xtensa_format_lookup (xtensa_isa isa, const char *fmtname) | |
526 | { | |
527 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
528 | int fmt; | |
529 | ||
530 | if (!fmtname || !*fmtname) | |
531 | { | |
532 | xtisa_errno = xtensa_isa_bad_format; | |
533 | strcpy (xtisa_error_msg, "invalid format name"); | |
534 | return XTENSA_UNDEFINED; | |
535 | } | |
536 | ||
537 | for (fmt = 0; fmt < intisa->num_formats; fmt++) | |
538 | { | |
539 | if (strcasecmp (fmtname, intisa->formats[fmt].name) == 0) | |
540 | return fmt; | |
541 | } | |
68ffbac6 | 542 | |
43cd72b9 BW |
543 | xtisa_errno = xtensa_isa_bad_format; |
544 | sprintf (xtisa_error_msg, "format \"%s\" not recognized", fmtname); | |
545 | return XTENSA_UNDEFINED; | |
546 | } | |
547 | ||
548 | ||
549 | xtensa_format | |
550 | xtensa_format_decode (xtensa_isa isa, const xtensa_insnbuf insn) | |
551 | { | |
552 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
553 | xtensa_format fmt; | |
554 | ||
555 | fmt = (intisa->format_decode_fn) (insn); | |
556 | if (fmt != XTENSA_UNDEFINED) | |
557 | return fmt; | |
558 | ||
559 | xtisa_errno = xtensa_isa_bad_format; | |
560 | strcpy (xtisa_error_msg, "cannot decode instruction format"); | |
561 | return XTENSA_UNDEFINED; | |
562 | } | |
563 | ||
564 | ||
565 | int | |
566 | xtensa_format_encode (xtensa_isa isa, xtensa_format fmt, xtensa_insnbuf insn) | |
567 | { | |
568 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
569 | CHECK_FORMAT (intisa, fmt, -1); | |
570 | (*intisa->formats[fmt].encode_fn) (insn); | |
571 | return 0; | |
572 | } | |
573 | ||
574 | ||
575 | int | |
576 | xtensa_format_length (xtensa_isa isa, xtensa_format fmt) | |
577 | { | |
578 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
579 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
580 | return intisa->formats[fmt].length; | |
581 | } | |
582 | ||
583 | ||
584 | int | |
585 | xtensa_format_num_slots (xtensa_isa isa, xtensa_format fmt) | |
586 | { | |
587 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
588 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
589 | return intisa->formats[fmt].num_slots; | |
590 | } | |
591 | ||
592 | ||
593 | xtensa_opcode | |
594 | xtensa_format_slot_nop_opcode (xtensa_isa isa, xtensa_format fmt, int slot) | |
595 | { | |
596 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
597 | int slot_id; | |
598 | ||
599 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
600 | CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED); | |
601 | ||
602 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
603 | return xtensa_opcode_lookup (isa, intisa->slots[slot_id].nop_name); | |
604 | } | |
605 | ||
606 | ||
607 | int | |
608 | xtensa_format_get_slot (xtensa_isa isa, xtensa_format fmt, int slot, | |
609 | const xtensa_insnbuf insn, xtensa_insnbuf slotbuf) | |
610 | { | |
611 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
612 | int slot_id; | |
613 | ||
614 | CHECK_FORMAT (intisa, fmt, -1); | |
615 | CHECK_SLOT (intisa, fmt, slot, -1); | |
616 | ||
617 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
618 | (*intisa->slots[slot_id].get_fn) (insn, slotbuf); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | ||
623 | int | |
624 | xtensa_format_set_slot (xtensa_isa isa, xtensa_format fmt, int slot, | |
625 | xtensa_insnbuf insn, const xtensa_insnbuf slotbuf) | |
626 | { | |
627 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
628 | int slot_id; | |
629 | ||
630 | CHECK_FORMAT (intisa, fmt, -1); | |
631 | CHECK_SLOT (intisa, fmt, slot, -1); | |
632 | ||
633 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
634 | (*intisa->slots[slot_id].set_fn) (insn, slotbuf); | |
635 | return 0; | |
636 | } | |
637 | ||
638 | ||
639 | \f | |
640 | /* Opcode information. */ | |
641 | ||
642 | ||
643 | #define CHECK_OPCODE(INTISA,OPC,ERRVAL) \ | |
644 | do { \ | |
645 | if ((OPC) < 0 || (OPC) >= (INTISA)->num_opcodes) \ | |
646 | { \ | |
647 | xtisa_errno = xtensa_isa_bad_opcode; \ | |
648 | strcpy (xtisa_error_msg, "invalid opcode specifier"); \ | |
649 | return (ERRVAL); \ | |
650 | } \ | |
651 | } while (0) | |
652 | ||
653 | ||
654 | xtensa_opcode | |
655 | xtensa_opcode_lookup (xtensa_isa isa, const char *opname) | |
656 | { | |
657 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1fbc7e7a | 658 | xtensa_lookup_entry entry, *result = 0; |
43cd72b9 BW |
659 | |
660 | if (!opname || !*opname) | |
661 | { | |
662 | xtisa_errno = xtensa_isa_bad_opcode; | |
663 | strcpy (xtisa_error_msg, "invalid opcode name"); | |
664 | return XTENSA_UNDEFINED; | |
665 | } | |
666 | ||
1fbc7e7a BW |
667 | if (intisa->num_opcodes != 0) |
668 | { | |
669 | entry.key = opname; | |
670 | result = bsearch (&entry, intisa->opname_lookup_table, | |
671 | intisa->num_opcodes, sizeof (xtensa_lookup_entry), | |
672 | xtensa_isa_name_compare); | |
673 | } | |
43cd72b9 BW |
674 | |
675 | if (!result) | |
676 | { | |
677 | xtisa_errno = xtensa_isa_bad_opcode; | |
678 | sprintf (xtisa_error_msg, "opcode \"%s\" not recognized", opname); | |
679 | return XTENSA_UNDEFINED; | |
680 | } | |
681 | ||
682 | return result->u.opcode; | |
683 | } | |
684 | ||
685 | ||
686 | xtensa_opcode | |
687 | xtensa_opcode_decode (xtensa_isa isa, xtensa_format fmt, int slot, | |
688 | const xtensa_insnbuf slotbuf) | |
689 | { | |
690 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
691 | int slot_id; | |
692 | xtensa_opcode opc; | |
693 | ||
694 | CHECK_FORMAT (intisa, fmt, XTENSA_UNDEFINED); | |
695 | CHECK_SLOT (intisa, fmt, slot, XTENSA_UNDEFINED); | |
696 | ||
697 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
698 | ||
699 | opc = (intisa->slots[slot_id].opcode_decode_fn) (slotbuf); | |
1fbc7e7a BW |
700 | if (opc != XTENSA_UNDEFINED) |
701 | return opc; | |
702 | ||
703 | xtisa_errno = xtensa_isa_bad_opcode; | |
704 | strcpy (xtisa_error_msg, "cannot decode opcode"); | |
705 | return XTENSA_UNDEFINED; | |
43cd72b9 BW |
706 | } |
707 | ||
708 | ||
709 | int | |
710 | xtensa_opcode_encode (xtensa_isa isa, xtensa_format fmt, int slot, | |
711 | xtensa_insnbuf slotbuf, xtensa_opcode opc) | |
712 | { | |
713 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
714 | int slot_id; | |
715 | xtensa_opcode_encode_fn encode_fn; | |
716 | ||
717 | CHECK_FORMAT (intisa, fmt, -1); | |
718 | CHECK_SLOT (intisa, fmt, slot, -1); | |
719 | CHECK_OPCODE (intisa, opc, -1); | |
720 | ||
721 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
722 | encode_fn = intisa->opcodes[opc].encode_fns[slot_id]; | |
723 | if (!encode_fn) | |
724 | { | |
725 | xtisa_errno = xtensa_isa_wrong_slot; | |
726 | sprintf (xtisa_error_msg, | |
727 | "opcode \"%s\" is not allowed in slot %d of format \"%s\"", | |
728 | intisa->opcodes[opc].name, slot, intisa->formats[fmt].name); | |
729 | return -1; | |
730 | } | |
731 | (*encode_fn) (slotbuf); | |
732 | return 0; | |
733 | } | |
734 | ||
735 | ||
736 | const char * | |
737 | xtensa_opcode_name (xtensa_isa isa, xtensa_opcode opc) | |
738 | { | |
739 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
740 | CHECK_OPCODE (intisa, opc, NULL); | |
741 | return intisa->opcodes[opc].name; | |
742 | } | |
743 | ||
744 | ||
745 | int | |
746 | xtensa_opcode_is_branch (xtensa_isa isa, xtensa_opcode opc) | |
747 | { | |
748 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
749 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
750 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_BRANCH) != 0) | |
751 | return 1; | |
752 | return 0; | |
753 | } | |
754 | ||
755 | ||
756 | int | |
757 | xtensa_opcode_is_jump (xtensa_isa isa, xtensa_opcode opc) | |
758 | { | |
759 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
760 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
761 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_JUMP) != 0) | |
762 | return 1; | |
763 | return 0; | |
764 | } | |
765 | ||
766 | ||
767 | int | |
768 | xtensa_opcode_is_loop (xtensa_isa isa, xtensa_opcode opc) | |
769 | { | |
770 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
771 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
772 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_LOOP) != 0) | |
773 | return 1; | |
774 | return 0; | |
775 | } | |
776 | ||
777 | ||
778 | int | |
779 | xtensa_opcode_is_call (xtensa_isa isa, xtensa_opcode opc) | |
780 | { | |
781 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
782 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
783 | if ((intisa->opcodes[opc].flags & XTENSA_OPCODE_IS_CALL) != 0) | |
784 | return 1; | |
785 | return 0; | |
786 | } | |
787 | ||
788 | ||
789 | int | |
790 | xtensa_opcode_num_operands (xtensa_isa isa, xtensa_opcode opc) | |
791 | { | |
792 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
793 | int iclass_id; | |
794 | ||
795 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
796 | iclass_id = intisa->opcodes[opc].iclass_id; | |
797 | return intisa->iclasses[iclass_id].num_operands; | |
798 | } | |
799 | ||
800 | ||
801 | int | |
802 | xtensa_opcode_num_stateOperands (xtensa_isa isa, xtensa_opcode opc) | |
803 | { | |
804 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
805 | int iclass_id; | |
806 | ||
807 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
808 | iclass_id = intisa->opcodes[opc].iclass_id; | |
809 | return intisa->iclasses[iclass_id].num_stateOperands; | |
810 | } | |
811 | ||
812 | ||
813 | int | |
814 | xtensa_opcode_num_interfaceOperands (xtensa_isa isa, xtensa_opcode opc) | |
815 | { | |
816 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
817 | int iclass_id; | |
818 | ||
819 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
820 | iclass_id = intisa->opcodes[opc].iclass_id; | |
821 | return intisa->iclasses[iclass_id].num_interfaceOperands; | |
822 | } | |
823 | ||
824 | ||
825 | int | |
826 | xtensa_opcode_num_funcUnit_uses (xtensa_isa isa, xtensa_opcode opc) | |
827 | { | |
828 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
829 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
830 | return intisa->opcodes[opc].num_funcUnit_uses; | |
831 | } | |
832 | ||
833 | ||
834 | xtensa_funcUnit_use * | |
835 | xtensa_opcode_funcUnit_use (xtensa_isa isa, xtensa_opcode opc, int u) | |
836 | { | |
837 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
838 | CHECK_OPCODE (intisa, opc, NULL); | |
839 | if (u < 0 || u >= intisa->opcodes[opc].num_funcUnit_uses) | |
840 | { | |
841 | xtisa_errno = xtensa_isa_bad_funcUnit; | |
842 | sprintf (xtisa_error_msg, "invalid functional unit use number (%d); " | |
843 | "opcode \"%s\" has %d", u, intisa->opcodes[opc].name, | |
844 | intisa->opcodes[opc].num_funcUnit_uses); | |
845 | return NULL; | |
846 | } | |
847 | return &intisa->opcodes[opc].funcUnit_uses[u]; | |
848 | } | |
849 | ||
850 | ||
851 | \f | |
852 | /* Operand information. */ | |
853 | ||
854 | ||
855 | #define CHECK_OPERAND(INTISA,OPC,ICLASS,OPND,ERRVAL) \ | |
856 | do { \ | |
857 | if ((OPND) < 0 || (OPND) >= (ICLASS)->num_operands) \ | |
858 | { \ | |
859 | xtisa_errno = xtensa_isa_bad_operand; \ | |
860 | sprintf (xtisa_error_msg, "invalid operand number (%d); " \ | |
861 | "opcode \"%s\" has %d operands", (OPND), \ | |
862 | (INTISA)->opcodes[(OPC)].name, (ICLASS)->num_operands); \ | |
863 | return (ERRVAL); \ | |
864 | } \ | |
865 | } while (0) | |
866 | ||
867 | ||
868 | static xtensa_operand_internal * | |
869 | get_operand (xtensa_isa_internal *intisa, xtensa_opcode opc, int opnd) | |
870 | { | |
871 | xtensa_iclass_internal *iclass; | |
872 | int iclass_id, operand_id; | |
873 | ||
874 | CHECK_OPCODE (intisa, opc, NULL); | |
875 | iclass_id = intisa->opcodes[opc].iclass_id; | |
876 | iclass = &intisa->iclasses[iclass_id]; | |
877 | CHECK_OPERAND (intisa, opc, iclass, opnd, NULL); | |
878 | operand_id = iclass->operands[opnd].u.operand_id; | |
879 | return &intisa->operands[operand_id]; | |
880 | } | |
881 | ||
882 | ||
883 | const char * | |
884 | xtensa_operand_name (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
885 | { | |
886 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
887 | xtensa_operand_internal *intop; | |
888 | ||
889 | intop = get_operand (intisa, opc, opnd); | |
890 | if (!intop) return NULL; | |
891 | return intop->name; | |
892 | } | |
893 | ||
894 | ||
895 | int | |
896 | xtensa_operand_is_visible (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
897 | { | |
898 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
899 | xtensa_iclass_internal *iclass; | |
900 | int iclass_id, operand_id; | |
901 | xtensa_operand_internal *intop; | |
902 | ||
903 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
904 | iclass_id = intisa->opcodes[opc].iclass_id; | |
905 | iclass = &intisa->iclasses[iclass_id]; | |
906 | CHECK_OPERAND (intisa, opc, iclass, opnd, XTENSA_UNDEFINED); | |
907 | ||
908 | /* Special case for "sout" operands. */ | |
909 | if (iclass->operands[opnd].inout == 's') | |
910 | return 0; | |
911 | ||
912 | operand_id = iclass->operands[opnd].u.operand_id; | |
913 | intop = &intisa->operands[operand_id]; | |
914 | ||
915 | if ((intop->flags & XTENSA_OPERAND_IS_INVISIBLE) == 0) | |
916 | return 1; | |
917 | return 0; | |
918 | } | |
919 | ||
920 | ||
921 | char | |
922 | xtensa_operand_inout (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
923 | { | |
924 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
925 | xtensa_iclass_internal *iclass; | |
926 | int iclass_id; | |
927 | char inout; | |
928 | ||
929 | CHECK_OPCODE (intisa, opc, 0); | |
930 | iclass_id = intisa->opcodes[opc].iclass_id; | |
931 | iclass = &intisa->iclasses[iclass_id]; | |
932 | CHECK_OPERAND (intisa, opc, iclass, opnd, 0); | |
933 | inout = iclass->operands[opnd].inout; | |
934 | ||
935 | /* Special case for "sout" operands. */ | |
936 | if (inout == 's') | |
937 | return 'o'; | |
938 | ||
939 | return inout; | |
940 | } | |
941 | ||
942 | ||
943 | int | |
944 | xtensa_operand_get_field (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
945 | xtensa_format fmt, int slot, | |
946 | const xtensa_insnbuf slotbuf, uint32 *valp) | |
947 | { | |
948 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
949 | xtensa_operand_internal *intop; | |
950 | int slot_id; | |
951 | xtensa_get_field_fn get_fn; | |
952 | ||
953 | intop = get_operand (intisa, opc, opnd); | |
954 | if (!intop) return -1; | |
955 | ||
956 | CHECK_FORMAT (intisa, fmt, -1); | |
957 | CHECK_SLOT (intisa, fmt, slot, -1); | |
958 | ||
959 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
960 | if (intop->field_id == XTENSA_UNDEFINED) | |
961 | { | |
962 | xtisa_errno = xtensa_isa_no_field; | |
963 | strcpy (xtisa_error_msg, "implicit operand has no field"); | |
964 | return -1; | |
965 | } | |
966 | get_fn = intisa->slots[slot_id].get_field_fns[intop->field_id]; | |
967 | if (!get_fn) | |
968 | { | |
969 | xtisa_errno = xtensa_isa_wrong_slot; | |
970 | sprintf (xtisa_error_msg, | |
971 | "operand \"%s\" does not exist in slot %d of format \"%s\"", | |
972 | intop->name, slot, intisa->formats[fmt].name); | |
973 | return -1; | |
974 | } | |
975 | *valp = (*get_fn) (slotbuf); | |
976 | return 0; | |
977 | } | |
978 | ||
979 | ||
980 | int | |
981 | xtensa_operand_set_field (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
982 | xtensa_format fmt, int slot, | |
983 | xtensa_insnbuf slotbuf, uint32 val) | |
984 | { | |
985 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
986 | xtensa_operand_internal *intop; | |
987 | int slot_id; | |
988 | xtensa_set_field_fn set_fn; | |
989 | ||
990 | intop = get_operand (intisa, opc, opnd); | |
991 | if (!intop) return -1; | |
992 | ||
993 | CHECK_FORMAT (intisa, fmt, -1); | |
994 | CHECK_SLOT (intisa, fmt, slot, -1); | |
995 | ||
996 | slot_id = intisa->formats[fmt].slot_id[slot]; | |
997 | if (intop->field_id == XTENSA_UNDEFINED) | |
998 | { | |
999 | xtisa_errno = xtensa_isa_no_field; | |
1000 | strcpy (xtisa_error_msg, "implicit operand has no field"); | |
1001 | return -1; | |
1002 | } | |
1003 | set_fn = intisa->slots[slot_id].set_field_fns[intop->field_id]; | |
1004 | if (!set_fn) | |
1005 | { | |
1006 | xtisa_errno = xtensa_isa_wrong_slot; | |
1007 | sprintf (xtisa_error_msg, | |
1008 | "operand \"%s\" does not exist in slot %d of format \"%s\"", | |
1009 | intop->name, slot, intisa->formats[fmt].name); | |
1010 | return -1; | |
1011 | } | |
1012 | (*set_fn) (slotbuf, val); | |
1013 | return 0; | |
e0001a05 NC |
1014 | } |
1015 | ||
e0001a05 | 1016 | |
43cd72b9 BW |
1017 | int |
1018 | xtensa_operand_encode (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
1019 | uint32 *valp) | |
e0001a05 | 1020 | { |
43cd72b9 BW |
1021 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1022 | xtensa_operand_internal *intop; | |
1023 | uint32 test_val, orig_val; | |
e0001a05 | 1024 | |
43cd72b9 | 1025 | intop = get_operand (intisa, opc, opnd); |
91d6fa6a NC |
1026 | if (!intop) |
1027 | return -1; | |
e0001a05 | 1028 | |
43cd72b9 | 1029 | if (!intop->encode) |
e0001a05 | 1030 | { |
43cd72b9 BW |
1031 | /* This is a default operand for a field. How can we tell if the |
1032 | value fits in the field? Write the value into the field, | |
1033 | read it back, and then make sure we get the same value. */ | |
43cd72b9 BW |
1034 | static xtensa_insnbuf tmpbuf = 0; |
1035 | int slot_id; | |
e0001a05 | 1036 | |
43cd72b9 | 1037 | if (!tmpbuf) |
e0001a05 | 1038 | { |
43cd72b9 BW |
1039 | tmpbuf = xtensa_insnbuf_alloc (isa); |
1040 | CHECK_ALLOC (tmpbuf, -1); | |
e0001a05 | 1041 | } |
43cd72b9 BW |
1042 | |
1043 | /* A default operand is always associated with a field, | |
1044 | but check just to be sure.... */ | |
1045 | if (intop->field_id == XTENSA_UNDEFINED) | |
e0001a05 | 1046 | { |
43cd72b9 BW |
1047 | xtisa_errno = xtensa_isa_internal_error; |
1048 | strcpy (xtisa_error_msg, "operand has no field"); | |
1049 | return -1; | |
e0001a05 NC |
1050 | } |
1051 | ||
43cd72b9 BW |
1052 | /* Find some slot that includes the field. */ |
1053 | for (slot_id = 0; slot_id < intisa->num_slots; slot_id++) | |
e0001a05 | 1054 | { |
43cd72b9 BW |
1055 | xtensa_get_field_fn get_fn = |
1056 | intisa->slots[slot_id].get_field_fns[intop->field_id]; | |
1057 | xtensa_set_field_fn set_fn = | |
1058 | intisa->slots[slot_id].set_field_fns[intop->field_id]; | |
1059 | ||
1060 | if (get_fn && set_fn) | |
e0001a05 | 1061 | { |
43cd72b9 BW |
1062 | (*set_fn) (tmpbuf, *valp); |
1063 | return ((*get_fn) (tmpbuf) != *valp); | |
e0001a05 NC |
1064 | } |
1065 | } | |
43cd72b9 BW |
1066 | |
1067 | /* Couldn't find any slot containing the field.... */ | |
1068 | xtisa_errno = xtensa_isa_no_field; | |
1069 | strcpy (xtisa_error_msg, "field does not exist in any slot"); | |
1070 | return -1; | |
1071 | } | |
1072 | ||
1073 | /* Encode the value. In some cases, the encoding function may detect | |
1074 | errors, but most of the time the only way to determine if the value | |
1075 | was successfully encoded is to decode it and check if it matches | |
1076 | the original value. */ | |
1077 | orig_val = *valp; | |
91d6fa6a NC |
1078 | if ((*intop->encode) (valp) |
1079 | || (test_val = *valp, (*intop->decode) (&test_val)) | |
1080 | || test_val != orig_val) | |
43cd72b9 BW |
1081 | { |
1082 | xtisa_errno = xtensa_isa_bad_value; | |
1083 | sprintf (xtisa_error_msg, "cannot encode operand value 0x%08x", *valp); | |
1084 | return -1; | |
e0001a05 NC |
1085 | } |
1086 | ||
43cd72b9 | 1087 | return 0; |
e0001a05 NC |
1088 | } |
1089 | ||
1090 | ||
43cd72b9 BW |
1091 | int |
1092 | xtensa_operand_decode (xtensa_isa isa, xtensa_opcode opc, int opnd, | |
1093 | uint32 *valp) | |
e0001a05 | 1094 | { |
43cd72b9 BW |
1095 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1096 | xtensa_operand_internal *intop; | |
e0001a05 | 1097 | |
43cd72b9 BW |
1098 | intop = get_operand (intisa, opc, opnd); |
1099 | if (!intop) return -1; | |
e0001a05 | 1100 | |
43cd72b9 BW |
1101 | /* Use identity function for "default" operands. */ |
1102 | if (!intop->decode) | |
e0001a05 NC |
1103 | return 0; |
1104 | ||
43cd72b9 | 1105 | if ((*intop->decode) (valp)) |
e0001a05 | 1106 | { |
43cd72b9 BW |
1107 | xtisa_errno = xtensa_isa_bad_value; |
1108 | sprintf (xtisa_error_msg, "cannot decode operand value 0x%08x", *valp); | |
1109 | return -1; | |
e0001a05 | 1110 | } |
43cd72b9 BW |
1111 | return 0; |
1112 | } | |
e0001a05 | 1113 | |
e0001a05 | 1114 | |
43cd72b9 BW |
1115 | int |
1116 | xtensa_operand_is_register (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
1117 | { | |
1118 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1119 | xtensa_operand_internal *intop; | |
e0001a05 | 1120 | |
43cd72b9 BW |
1121 | intop = get_operand (intisa, opc, opnd); |
1122 | if (!intop) return XTENSA_UNDEFINED; | |
e0001a05 | 1123 | |
43cd72b9 BW |
1124 | if ((intop->flags & XTENSA_OPERAND_IS_REGISTER) != 0) |
1125 | return 1; | |
1126 | return 0; | |
1127 | } | |
e0001a05 | 1128 | |
e0001a05 | 1129 | |
43cd72b9 BW |
1130 | xtensa_regfile |
1131 | xtensa_operand_regfile (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
1132 | { | |
1133 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1134 | xtensa_operand_internal *intop; | |
e0001a05 | 1135 | |
43cd72b9 BW |
1136 | intop = get_operand (intisa, opc, opnd); |
1137 | if (!intop) return XTENSA_UNDEFINED; | |
e0001a05 | 1138 | |
43cd72b9 | 1139 | return intop->regfile; |
e0001a05 NC |
1140 | } |
1141 | ||
1142 | ||
43cd72b9 BW |
1143 | int |
1144 | xtensa_operand_num_regs (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
e0001a05 | 1145 | { |
43cd72b9 BW |
1146 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1147 | xtensa_operand_internal *intop; | |
e0001a05 | 1148 | |
43cd72b9 BW |
1149 | intop = get_operand (intisa, opc, opnd); |
1150 | if (!intop) return XTENSA_UNDEFINED; | |
1151 | ||
1152 | return intop->num_regs; | |
e0001a05 NC |
1153 | } |
1154 | ||
1155 | ||
1156 | int | |
43cd72b9 | 1157 | xtensa_operand_is_known_reg (xtensa_isa isa, xtensa_opcode opc, int opnd) |
e0001a05 NC |
1158 | { |
1159 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1160 | xtensa_operand_internal *intop; |
1161 | ||
1162 | intop = get_operand (intisa, opc, opnd); | |
1163 | if (!intop) return XTENSA_UNDEFINED; | |
1164 | ||
1165 | if ((intop->flags & XTENSA_OPERAND_IS_UNKNOWN) == 0) | |
1166 | return 1; | |
1167 | return 0; | |
e0001a05 NC |
1168 | } |
1169 | ||
1170 | ||
43cd72b9 BW |
1171 | int |
1172 | xtensa_operand_is_PCrelative (xtensa_isa isa, xtensa_opcode opc, int opnd) | |
e0001a05 NC |
1173 | { |
1174 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1175 | xtensa_operand_internal *intop; |
1176 | ||
1177 | intop = get_operand (intisa, opc, opnd); | |
1178 | if (!intop) return XTENSA_UNDEFINED; | |
1179 | ||
1180 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) != 0) | |
1181 | return 1; | |
1182 | return 0; | |
e0001a05 NC |
1183 | } |
1184 | ||
1185 | ||
1186 | int | |
43cd72b9 BW |
1187 | xtensa_operand_do_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd, |
1188 | uint32 *valp, uint32 pc) | |
e0001a05 NC |
1189 | { |
1190 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1191 | xtensa_operand_internal *intop; |
1192 | ||
1193 | intop = get_operand (intisa, opc, opnd); | |
1194 | if (!intop) return -1; | |
1195 | ||
1196 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0) | |
1197 | return 0; | |
1198 | ||
1199 | if (!intop->do_reloc) | |
1200 | { | |
1201 | xtisa_errno = xtensa_isa_internal_error; | |
1202 | strcpy (xtisa_error_msg, "operand missing do_reloc function"); | |
1203 | return -1; | |
1204 | } | |
1205 | ||
1206 | if ((*intop->do_reloc) (valp, pc)) | |
1207 | { | |
1208 | xtisa_errno = xtensa_isa_bad_value; | |
1209 | sprintf (xtisa_error_msg, | |
1210 | "do_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc); | |
1211 | return -1; | |
1212 | } | |
1213 | ||
1214 | return 0; | |
e0001a05 NC |
1215 | } |
1216 | ||
1217 | ||
1218 | int | |
43cd72b9 BW |
1219 | xtensa_operand_undo_reloc (xtensa_isa isa, xtensa_opcode opc, int opnd, |
1220 | uint32 *valp, uint32 pc) | |
e0001a05 | 1221 | { |
43cd72b9 BW |
1222 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1223 | xtensa_operand_internal *intop; | |
1224 | ||
1225 | intop = get_operand (intisa, opc, opnd); | |
1226 | if (!intop) return -1; | |
1227 | ||
1228 | if ((intop->flags & XTENSA_OPERAND_IS_PCRELATIVE) == 0) | |
1229 | return 0; | |
1230 | ||
1231 | if (!intop->undo_reloc) | |
1232 | { | |
1233 | xtisa_errno = xtensa_isa_internal_error; | |
1234 | strcpy (xtisa_error_msg, "operand missing undo_reloc function"); | |
1235 | return -1; | |
1236 | } | |
1237 | ||
1238 | if ((*intop->undo_reloc) (valp, pc)) | |
1239 | { | |
1240 | xtisa_errno = xtensa_isa_bad_value; | |
1241 | sprintf (xtisa_error_msg, | |
1242 | "undo_reloc failed for value 0x%08x at PC 0x%08x", *valp, pc); | |
1243 | return -1; | |
1244 | } | |
1245 | ||
1246 | return 0; | |
e0001a05 NC |
1247 | } |
1248 | ||
1249 | ||
43cd72b9 BW |
1250 | \f |
1251 | /* State Operands. */ | |
1252 | ||
1253 | ||
1254 | #define CHECK_STATE_OPERAND(INTISA,OPC,ICLASS,STOP,ERRVAL) \ | |
1255 | do { \ | |
1256 | if ((STOP) < 0 || (STOP) >= (ICLASS)->num_stateOperands) \ | |
1257 | { \ | |
1258 | xtisa_errno = xtensa_isa_bad_operand; \ | |
1259 | sprintf (xtisa_error_msg, "invalid state operand number (%d); " \ | |
1260 | "opcode \"%s\" has %d state operands", (STOP), \ | |
1261 | (INTISA)->opcodes[(OPC)].name, (ICLASS)->num_stateOperands); \ | |
1262 | return (ERRVAL); \ | |
1263 | } \ | |
1264 | } while (0) | |
1265 | ||
1266 | ||
1267 | xtensa_state | |
1268 | xtensa_stateOperand_state (xtensa_isa isa, xtensa_opcode opc, int stOp) | |
e0001a05 NC |
1269 | { |
1270 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1271 | xtensa_iclass_internal *iclass; |
1272 | int iclass_id; | |
1273 | ||
1274 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
1275 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1276 | iclass = &intisa->iclasses[iclass_id]; | |
1277 | CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, XTENSA_UNDEFINED); | |
1278 | return iclass->stateOperands[stOp].u.state; | |
e0001a05 NC |
1279 | } |
1280 | ||
1281 | ||
43cd72b9 BW |
1282 | char |
1283 | xtensa_stateOperand_inout (xtensa_isa isa, xtensa_opcode opc, int stOp) | |
e0001a05 NC |
1284 | { |
1285 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1286 | xtensa_iclass_internal *iclass; |
1287 | int iclass_id; | |
1288 | ||
1289 | CHECK_OPCODE (intisa, opc, 0); | |
1290 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1291 | iclass = &intisa->iclasses[iclass_id]; | |
1292 | CHECK_STATE_OPERAND (intisa, opc, iclass, stOp, 0); | |
1293 | return iclass->stateOperands[stOp].inout; | |
1294 | } | |
e0001a05 | 1295 | |
1fbc7e7a | 1296 | |
43cd72b9 BW |
1297 | \f |
1298 | /* Interface Operands. */ | |
1299 | ||
1300 | ||
1301 | #define CHECK_INTERFACE_OPERAND(INTISA,OPC,ICLASS,IFOP,ERRVAL) \ | |
1302 | do { \ | |
1303 | if ((IFOP) < 0 || (IFOP) >= (ICLASS)->num_interfaceOperands) \ | |
1304 | { \ | |
1305 | xtisa_errno = xtensa_isa_bad_operand; \ | |
1306 | sprintf (xtisa_error_msg, "invalid interface operand number (%d); " \ | |
1307 | "opcode \"%s\" has %d interface operands", (IFOP), \ | |
1308 | (INTISA)->opcodes[(OPC)].name, \ | |
1309 | (ICLASS)->num_interfaceOperands); \ | |
1310 | return (ERRVAL); \ | |
1311 | } \ | |
1312 | } while (0) | |
1313 | ||
1314 | ||
1315 | xtensa_interface | |
1316 | xtensa_interfaceOperand_interface (xtensa_isa isa, xtensa_opcode opc, | |
1317 | int ifOp) | |
1318 | { | |
1319 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1320 | xtensa_iclass_internal *iclass; | |
1321 | int iclass_id; | |
1322 | ||
1323 | CHECK_OPCODE (intisa, opc, XTENSA_UNDEFINED); | |
1324 | iclass_id = intisa->opcodes[opc].iclass_id; | |
1325 | iclass = &intisa->iclasses[iclass_id]; | |
1326 | CHECK_INTERFACE_OPERAND (intisa, opc, iclass, ifOp, XTENSA_UNDEFINED); | |
1327 | return iclass->interfaceOperands[ifOp]; | |
e0001a05 NC |
1328 | } |
1329 | ||
1330 | ||
43cd72b9 BW |
1331 | \f |
1332 | /* Register Files. */ | |
1333 | ||
1334 | ||
1335 | #define CHECK_REGFILE(INTISA,RF,ERRVAL) \ | |
1336 | do { \ | |
1337 | if ((RF) < 0 || (RF) >= (INTISA)->num_regfiles) \ | |
1338 | { \ | |
1339 | xtisa_errno = xtensa_isa_bad_regfile; \ | |
1340 | strcpy (xtisa_error_msg, "invalid regfile specifier"); \ | |
1341 | return (ERRVAL); \ | |
1342 | } \ | |
1343 | } while (0) | |
1344 | ||
1345 | ||
1346 | xtensa_regfile | |
1347 | xtensa_regfile_lookup (xtensa_isa isa, const char *name) | |
e0001a05 NC |
1348 | { |
1349 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1350 | int n; |
1351 | ||
1352 | if (!name || !*name) | |
1353 | { | |
1354 | xtisa_errno = xtensa_isa_bad_regfile; | |
1355 | strcpy (xtisa_error_msg, "invalid regfile name"); | |
1356 | return XTENSA_UNDEFINED; | |
1357 | } | |
1358 | ||
1359 | /* The expected number of regfiles is small; use a linear search. */ | |
1360 | for (n = 0; n < intisa->num_regfiles; n++) | |
1361 | { | |
007d6189 | 1362 | if (!filename_cmp (intisa->regfiles[n].name, name)) |
43cd72b9 BW |
1363 | return n; |
1364 | } | |
1365 | ||
1366 | xtisa_errno = xtensa_isa_bad_regfile; | |
1367 | sprintf (xtisa_error_msg, "regfile \"%s\" not recognized", name); | |
e0001a05 NC |
1368 | return XTENSA_UNDEFINED; |
1369 | } | |
1370 | ||
1371 | ||
43cd72b9 BW |
1372 | xtensa_regfile |
1373 | xtensa_regfile_lookup_shortname (xtensa_isa isa, const char *shortname) | |
e0001a05 NC |
1374 | { |
1375 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
e0001a05 NC |
1376 | int n; |
1377 | ||
43cd72b9 BW |
1378 | if (!shortname || !*shortname) |
1379 | { | |
1380 | xtisa_errno = xtensa_isa_bad_regfile; | |
1381 | strcpy (xtisa_error_msg, "invalid regfile shortname"); | |
1382 | return XTENSA_UNDEFINED; | |
1383 | } | |
e0001a05 | 1384 | |
43cd72b9 BW |
1385 | /* The expected number of regfiles is small; use a linear search. */ |
1386 | for (n = 0; n < intisa->num_regfiles; n++) | |
1387 | { | |
1388 | /* Ignore regfile views since they always have the same shortnames | |
1389 | as their parents. */ | |
1390 | if (intisa->regfiles[n].parent != n) | |
1391 | continue; | |
007d6189 | 1392 | if (!filename_cmp (intisa->regfiles[n].shortname, shortname)) |
43cd72b9 BW |
1393 | return n; |
1394 | } | |
e0001a05 | 1395 | |
43cd72b9 BW |
1396 | xtisa_errno = xtensa_isa_bad_regfile; |
1397 | sprintf (xtisa_error_msg, "regfile shortname \"%s\" not recognized", | |
1398 | shortname); | |
1399 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1400 | } |
1401 | ||
1402 | ||
1403 | const char * | |
43cd72b9 | 1404 | xtensa_regfile_name (xtensa_isa isa, xtensa_regfile rf) |
e0001a05 NC |
1405 | { |
1406 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1407 | CHECK_REGFILE (intisa, rf, NULL); |
1408 | return intisa->regfiles[rf].name; | |
e0001a05 NC |
1409 | } |
1410 | ||
1411 | ||
43cd72b9 BW |
1412 | const char * |
1413 | xtensa_regfile_shortname (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1414 | { |
1415 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1416 | CHECK_REGFILE (intisa, rf, NULL); |
1417 | return intisa->regfiles[rf].shortname; | |
e0001a05 NC |
1418 | } |
1419 | ||
1420 | ||
43cd72b9 BW |
1421 | xtensa_regfile |
1422 | xtensa_regfile_view_parent (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1423 | { |
1424 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1425 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1426 | return intisa->regfiles[rf].parent; | |
e0001a05 NC |
1427 | } |
1428 | ||
1429 | ||
1430 | int | |
43cd72b9 | 1431 | xtensa_regfile_num_bits (xtensa_isa isa, xtensa_regfile rf) |
e0001a05 NC |
1432 | { |
1433 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1434 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1435 | return intisa->regfiles[rf].num_bits; | |
e0001a05 NC |
1436 | } |
1437 | ||
1438 | ||
43cd72b9 BW |
1439 | int |
1440 | xtensa_regfile_num_entries (xtensa_isa isa, xtensa_regfile rf) | |
e0001a05 NC |
1441 | { |
1442 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1443 | CHECK_REGFILE (intisa, rf, XTENSA_UNDEFINED); |
1444 | return intisa->regfiles[rf].num_entries; | |
e0001a05 NC |
1445 | } |
1446 | ||
1fbc7e7a | 1447 | |
43cd72b9 BW |
1448 | \f |
1449 | /* Processor States. */ | |
e0001a05 | 1450 | |
e0001a05 | 1451 | |
43cd72b9 BW |
1452 | #define CHECK_STATE(INTISA,ST,ERRVAL) \ |
1453 | do { \ | |
1454 | if ((ST) < 0 || (ST) >= (INTISA)->num_states) \ | |
1455 | { \ | |
1456 | xtisa_errno = xtensa_isa_bad_state; \ | |
1457 | strcpy (xtisa_error_msg, "invalid state specifier"); \ | |
1458 | return (ERRVAL); \ | |
1459 | } \ | |
1460 | } while (0) | |
e0001a05 NC |
1461 | |
1462 | ||
43cd72b9 BW |
1463 | xtensa_state |
1464 | xtensa_state_lookup (xtensa_isa isa, const char *name) | |
e0001a05 | 1465 | { |
43cd72b9 | 1466 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1fbc7e7a | 1467 | xtensa_lookup_entry entry, *result = 0; |
e0001a05 | 1468 | |
43cd72b9 BW |
1469 | if (!name || !*name) |
1470 | { | |
1471 | xtisa_errno = xtensa_isa_bad_state; | |
1472 | strcpy (xtisa_error_msg, "invalid state name"); | |
1473 | return XTENSA_UNDEFINED; | |
1474 | } | |
e0001a05 | 1475 | |
1fbc7e7a BW |
1476 | if (intisa->num_states != 0) |
1477 | { | |
1478 | entry.key = name; | |
1479 | result = bsearch (&entry, intisa->state_lookup_table, intisa->num_states, | |
1480 | sizeof (xtensa_lookup_entry), xtensa_isa_name_compare); | |
1481 | } | |
e0001a05 | 1482 | |
43cd72b9 BW |
1483 | if (!result) |
1484 | { | |
1485 | xtisa_errno = xtensa_isa_bad_state; | |
1486 | sprintf (xtisa_error_msg, "state \"%s\" not recognized", name); | |
1487 | return XTENSA_UNDEFINED; | |
1488 | } | |
e0001a05 | 1489 | |
43cd72b9 | 1490 | return result->u.state; |
e0001a05 NC |
1491 | } |
1492 | ||
1493 | ||
43cd72b9 BW |
1494 | const char * |
1495 | xtensa_state_name (xtensa_isa isa, xtensa_state st) | |
e0001a05 | 1496 | { |
43cd72b9 BW |
1497 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1498 | CHECK_STATE (intisa, st, NULL); | |
1499 | return intisa->states[st].name; | |
e0001a05 NC |
1500 | } |
1501 | ||
1502 | ||
43cd72b9 BW |
1503 | int |
1504 | xtensa_state_num_bits (xtensa_isa isa, xtensa_state st) | |
e0001a05 | 1505 | { |
43cd72b9 BW |
1506 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1507 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1508 | return intisa->states[st].num_bits; | |
e0001a05 NC |
1509 | } |
1510 | ||
1511 | ||
1512 | int | |
43cd72b9 | 1513 | xtensa_state_is_exported (xtensa_isa isa, xtensa_state st) |
e0001a05 | 1514 | { |
43cd72b9 BW |
1515 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1516 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1517 | if ((intisa->states[st].flags & XTENSA_STATE_IS_EXPORTED) != 0) | |
1518 | return 1; | |
1519 | return 0; | |
e0001a05 NC |
1520 | } |
1521 | ||
1fbc7e7a | 1522 | |
1fa3cd83 SA |
1523 | int |
1524 | xtensa_state_is_shared_or (xtensa_isa isa, xtensa_state st) | |
1525 | { | |
1526 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1527 | CHECK_STATE (intisa, st, XTENSA_UNDEFINED); | |
1528 | if ((intisa->states[st].flags & XTENSA_STATE_IS_SHARED_OR) != 0) | |
1529 | return 1; | |
1530 | return 0; | |
1531 | } | |
1532 | ||
1533 | ||
43cd72b9 BW |
1534 | \f |
1535 | /* Sysregs. */ | |
1536 | ||
1537 | ||
1538 | #define CHECK_SYSREG(INTISA,SYSREG,ERRVAL) \ | |
1539 | do { \ | |
1540 | if ((SYSREG) < 0 || (SYSREG) >= (INTISA)->num_sysregs) \ | |
1541 | { \ | |
1542 | xtisa_errno = xtensa_isa_bad_sysreg; \ | |
1543 | strcpy (xtisa_error_msg, "invalid sysreg specifier"); \ | |
1544 | return (ERRVAL); \ | |
1545 | } \ | |
1546 | } while (0) | |
e0001a05 | 1547 | |
43cd72b9 BW |
1548 | |
1549 | xtensa_sysreg | |
1550 | xtensa_sysreg_lookup (xtensa_isa isa, int num, int is_user) | |
e0001a05 | 1551 | { |
43cd72b9 BW |
1552 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1553 | ||
1554 | if (is_user != 0) | |
1555 | is_user = 1; | |
1556 | ||
1557 | if (num < 0 || num > intisa->max_sysreg_num[is_user] | |
1558 | || intisa->sysreg_table[is_user][num] == XTENSA_UNDEFINED) | |
1559 | { | |
1560 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1561 | strcpy (xtisa_error_msg, "sysreg not recognized"); | |
1562 | return XTENSA_UNDEFINED; | |
1563 | } | |
1564 | ||
1565 | return intisa->sysreg_table[is_user][num]; | |
e0001a05 NC |
1566 | } |
1567 | ||
1568 | ||
43cd72b9 BW |
1569 | xtensa_sysreg |
1570 | xtensa_sysreg_lookup_name (xtensa_isa isa, const char *name) | |
e0001a05 | 1571 | { |
43cd72b9 | 1572 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1fbc7e7a | 1573 | xtensa_lookup_entry entry, *result = 0; |
e0001a05 | 1574 | |
43cd72b9 BW |
1575 | if (!name || !*name) |
1576 | { | |
1577 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1578 | strcpy (xtisa_error_msg, "invalid sysreg name"); | |
1579 | return XTENSA_UNDEFINED; | |
1580 | } | |
e0001a05 | 1581 | |
1fbc7e7a BW |
1582 | if (intisa->num_sysregs != 0) |
1583 | { | |
1584 | entry.key = name; | |
1585 | result = bsearch (&entry, intisa->sysreg_lookup_table, | |
1586 | intisa->num_sysregs, sizeof (xtensa_lookup_entry), | |
1587 | xtensa_isa_name_compare); | |
1588 | } | |
e0001a05 | 1589 | |
43cd72b9 BW |
1590 | if (!result) |
1591 | { | |
1592 | xtisa_errno = xtensa_isa_bad_sysreg; | |
1593 | sprintf (xtisa_error_msg, "sysreg \"%s\" not recognized", name); | |
1594 | return XTENSA_UNDEFINED; | |
1595 | } | |
1596 | ||
1597 | return result->u.sysreg; | |
e0001a05 NC |
1598 | } |
1599 | ||
1600 | ||
43cd72b9 BW |
1601 | const char * |
1602 | xtensa_sysreg_name (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1603 | { |
43cd72b9 BW |
1604 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1605 | CHECK_SYSREG (intisa, sysreg, NULL); | |
1606 | return intisa->sysregs[sysreg].name; | |
e0001a05 NC |
1607 | } |
1608 | ||
1609 | ||
43cd72b9 BW |
1610 | int |
1611 | xtensa_sysreg_number (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1612 | { |
43cd72b9 BW |
1613 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1614 | CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED); | |
1615 | return intisa->sysregs[sysreg].number; | |
e0001a05 NC |
1616 | } |
1617 | ||
1618 | ||
43cd72b9 BW |
1619 | int |
1620 | xtensa_sysreg_is_user (xtensa_isa isa, xtensa_sysreg sysreg) | |
e0001a05 | 1621 | { |
43cd72b9 BW |
1622 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; |
1623 | CHECK_SYSREG (intisa, sysreg, XTENSA_UNDEFINED); | |
1624 | if (intisa->sysregs[sysreg].is_user) | |
1625 | return 1; | |
1626 | return 0; | |
e0001a05 NC |
1627 | } |
1628 | ||
1fbc7e7a | 1629 | |
43cd72b9 BW |
1630 | \f |
1631 | /* Interfaces. */ | |
e0001a05 | 1632 | |
e0001a05 | 1633 | |
43cd72b9 BW |
1634 | #define CHECK_INTERFACE(INTISA,INTF,ERRVAL) \ |
1635 | do { \ | |
1636 | if ((INTF) < 0 || (INTF) >= (INTISA)->num_interfaces) \ | |
1637 | { \ | |
1638 | xtisa_errno = xtensa_isa_bad_interface; \ | |
1639 | strcpy (xtisa_error_msg, "invalid interface specifier"); \ | |
1640 | return (ERRVAL); \ | |
1641 | } \ | |
1642 | } while (0) | |
1643 | ||
1644 | ||
1645 | xtensa_interface | |
1646 | xtensa_interface_lookup (xtensa_isa isa, const char *ifname) | |
e0001a05 NC |
1647 | { |
1648 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1fbc7e7a | 1649 | xtensa_lookup_entry entry, *result = 0; |
e0001a05 | 1650 | |
43cd72b9 | 1651 | if (!ifname || !*ifname) |
e0001a05 | 1652 | { |
43cd72b9 BW |
1653 | xtisa_errno = xtensa_isa_bad_interface; |
1654 | strcpy (xtisa_error_msg, "invalid interface name"); | |
1655 | return XTENSA_UNDEFINED; | |
e0001a05 | 1656 | } |
43cd72b9 | 1657 | |
1fbc7e7a BW |
1658 | if (intisa->num_interfaces != 0) |
1659 | { | |
1660 | entry.key = ifname; | |
1661 | result = bsearch (&entry, intisa->interface_lookup_table, | |
1662 | intisa->num_interfaces, sizeof (xtensa_lookup_entry), | |
1663 | xtensa_isa_name_compare); | |
1664 | } | |
43cd72b9 BW |
1665 | |
1666 | if (!result) | |
e0001a05 | 1667 | { |
43cd72b9 BW |
1668 | xtisa_errno = xtensa_isa_bad_interface; |
1669 | sprintf (xtisa_error_msg, "interface \"%s\" not recognized", ifname); | |
1670 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1671 | } |
1672 | ||
43cd72b9 BW |
1673 | return result->u.intf; |
1674 | } | |
e0001a05 | 1675 | |
e0001a05 | 1676 | |
43cd72b9 BW |
1677 | const char * |
1678 | xtensa_interface_name (xtensa_isa isa, xtensa_interface intf) | |
1679 | { | |
1680 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1681 | CHECK_INTERFACE (intisa, intf, NULL); | |
1682 | return intisa->interfaces[intf].name; | |
1683 | } | |
e0001a05 | 1684 | |
43cd72b9 BW |
1685 | |
1686 | int | |
1687 | xtensa_interface_num_bits (xtensa_isa isa, xtensa_interface intf) | |
1688 | { | |
1689 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1690 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1691 | return intisa->interfaces[intf].num_bits; | |
e0001a05 NC |
1692 | } |
1693 | ||
43cd72b9 BW |
1694 | |
1695 | char | |
1696 | xtensa_interface_inout (xtensa_isa isa, xtensa_interface intf) | |
e0001a05 NC |
1697 | { |
1698 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
43cd72b9 BW |
1699 | CHECK_INTERFACE (intisa, intf, 0); |
1700 | return intisa->interfaces[intf].inout; | |
1701 | } | |
e0001a05 | 1702 | |
43cd72b9 BW |
1703 | |
1704 | int | |
1705 | xtensa_interface_has_side_effect (xtensa_isa isa, xtensa_interface intf) | |
1706 | { | |
1707 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1708 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1709 | if ((intisa->interfaces[intf].flags & XTENSA_INTERFACE_HAS_SIDE_EFFECT) != 0) | |
1710 | return 1; | |
1711 | return 0; | |
1712 | } | |
1713 | ||
a1ace8d8 BW |
1714 | |
1715 | int | |
1716 | xtensa_interface_class_id (xtensa_isa isa, xtensa_interface intf) | |
1717 | { | |
1718 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1719 | CHECK_INTERFACE (intisa, intf, XTENSA_UNDEFINED); | |
1720 | return intisa->interfaces[intf].class_id; | |
1721 | } | |
1722 | ||
1fbc7e7a | 1723 | |
43cd72b9 BW |
1724 | \f |
1725 | /* Functional Units. */ | |
1726 | ||
1727 | ||
1728 | #define CHECK_FUNCUNIT(INTISA,FUN,ERRVAL) \ | |
1729 | do { \ | |
1730 | if ((FUN) < 0 || (FUN) >= (INTISA)->num_funcUnits) \ | |
1731 | { \ | |
1732 | xtisa_errno = xtensa_isa_bad_funcUnit; \ | |
1733 | strcpy (xtisa_error_msg, "invalid functional unit specifier"); \ | |
1734 | return (ERRVAL); \ | |
1735 | } \ | |
1736 | } while (0) | |
1737 | ||
1738 | ||
1739 | xtensa_funcUnit | |
1740 | xtensa_funcUnit_lookup (xtensa_isa isa, const char *fname) | |
1741 | { | |
1742 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1fbc7e7a | 1743 | xtensa_lookup_entry entry, *result = 0; |
43cd72b9 BW |
1744 | |
1745 | if (!fname || !*fname) | |
e0001a05 | 1746 | { |
43cd72b9 BW |
1747 | xtisa_errno = xtensa_isa_bad_funcUnit; |
1748 | strcpy (xtisa_error_msg, "invalid functional unit name"); | |
1749 | return XTENSA_UNDEFINED; | |
e0001a05 | 1750 | } |
43cd72b9 | 1751 | |
1fbc7e7a BW |
1752 | if (intisa->num_funcUnits != 0) |
1753 | { | |
1754 | entry.key = fname; | |
1755 | result = bsearch (&entry, intisa->funcUnit_lookup_table, | |
1756 | intisa->num_funcUnits, sizeof (xtensa_lookup_entry), | |
1757 | xtensa_isa_name_compare); | |
1758 | } | |
43cd72b9 BW |
1759 | |
1760 | if (!result) | |
e0001a05 | 1761 | { |
43cd72b9 BW |
1762 | xtisa_errno = xtensa_isa_bad_funcUnit; |
1763 | sprintf (xtisa_error_msg, | |
1764 | "functional unit \"%s\" not recognized", fname); | |
1765 | return XTENSA_UNDEFINED; | |
e0001a05 NC |
1766 | } |
1767 | ||
43cd72b9 BW |
1768 | return result->u.fun; |
1769 | } | |
e0001a05 | 1770 | |
e0001a05 | 1771 | |
43cd72b9 BW |
1772 | const char * |
1773 | xtensa_funcUnit_name (xtensa_isa isa, xtensa_funcUnit fun) | |
1774 | { | |
1775 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1776 | CHECK_FUNCUNIT (intisa, fun, NULL); | |
1777 | return intisa->funcUnits[fun].name; | |
1778 | } | |
1779 | ||
1780 | ||
1781 | int | |
1782 | xtensa_funcUnit_num_copies (xtensa_isa isa, xtensa_funcUnit fun) | |
1783 | { | |
1784 | xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa; | |
1785 | CHECK_FUNCUNIT (intisa, fun, XTENSA_UNDEFINED); | |
1786 | return intisa->funcUnits[fun].num_copies; | |
e0001a05 NC |
1787 | } |
1788 |