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1da177e4 LT |
1 | %{ |
2 | /* | |
3 | * Parser for the Aic7xxx SCSI Host adapter sequencer assembler. | |
4 | * | |
5 | * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs. | |
6 | * Copyright (c) 2001, 2002 Adaptec Inc. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions, and the following disclaimer, | |
14 | * without modification. | |
15 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
16 | * substantially similar to the "NO WARRANTY" disclaimer below | |
17 | * ("Disclaimer") and any redistribution must be conditioned upon | |
18 | * including a substantially similar Disclaimer requirement for further | |
19 | * binary redistribution. | |
20 | * 3. Neither the names of the above-listed copyright holders nor the names | |
21 | * of any contributors may be used to endorse or promote products derived | |
22 | * from this software without specific prior written permission. | |
23 | * | |
24 | * Alternatively, this software may be distributed under the terms of the | |
25 | * GNU General Public License ("GPL") version 2 as published by the Free | |
26 | * Software Foundation. | |
27 | * | |
28 | * NO WARRANTY | |
29 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
30 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
31 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
32 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
33 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
37 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
38 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
39 | * POSSIBILITY OF SUCH DAMAGES. | |
40 | * | |
2628ed2b | 41 | * $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_gram.y#30 $ |
1da177e4 LT |
42 | * |
43 | * $FreeBSD$ | |
44 | */ | |
45 | ||
46 | #include <sys/types.h> | |
47 | ||
48 | #include <inttypes.h> | |
49 | #include <regex.h> | |
50 | #include <stdio.h> | |
51 | #include <stdlib.h> | |
52 | #include <string.h> | |
53 | #include <sysexits.h> | |
54 | ||
55 | #ifdef __linux__ | |
56 | #include "../queue.h" | |
57 | #else | |
58 | #include <sys/queue.h> | |
59 | #endif | |
60 | ||
61 | #include "aicasm.h" | |
62 | #include "aicasm_symbol.h" | |
63 | #include "aicasm_insformat.h" | |
64 | ||
65 | int yylineno; | |
66 | char *yyfilename; | |
67 | char stock_prefix[] = "aic_"; | |
68 | char *prefix = stock_prefix; | |
69 | char *patch_arg_list; | |
70 | char *versions; | |
71 | static char errbuf[255]; | |
72 | static char regex_pattern[255]; | |
73 | static symbol_t *cur_symbol; | |
74 | static symbol_t *field_symbol; | |
75 | static symbol_t *scb_or_sram_symbol; | |
76 | static symtype cur_symtype; | |
77 | static symbol_ref_t accumulator; | |
78 | static symbol_ref_t mode_ptr; | |
79 | static symbol_ref_t allones; | |
80 | static symbol_ref_t allzeros; | |
81 | static symbol_ref_t none; | |
82 | static symbol_ref_t sindex; | |
83 | static int instruction_ptr; | |
84 | static int num_srams; | |
85 | static int sram_or_scb_offset; | |
86 | static int download_constant_count; | |
87 | static int in_critical_section; | |
88 | static u_int enum_increment; | |
89 | static u_int enum_next_value; | |
90 | ||
91 | static void process_field(int field_type, symbol_t *sym, int mask); | |
92 | static void initialize_symbol(symbol_t *symbol); | |
93 | static void add_macro_arg(const char *argtext, int position); | |
94 | static void add_macro_body(const char *bodytext); | |
95 | static void process_register(symbol_t **p_symbol); | |
96 | static void format_1_instr(int opcode, symbol_ref_t *dest, | |
97 | expression_t *immed, symbol_ref_t *src, int ret); | |
98 | static void format_2_instr(int opcode, symbol_ref_t *dest, | |
99 | expression_t *places, symbol_ref_t *src, int ret); | |
100 | static void format_3_instr(int opcode, symbol_ref_t *src, | |
101 | expression_t *immed, symbol_ref_t *address); | |
102 | static void test_readable_symbol(symbol_t *symbol); | |
103 | static void test_writable_symbol(symbol_t *symbol); | |
2b48aed1 | 104 | static void type_check(symbol_ref_t *sym, expression_t *expression, int and_op); |
1da177e4 LT |
105 | static void make_expression(expression_t *immed, int value); |
106 | static void add_conditional(symbol_t *symbol); | |
107 | static void add_version(const char *verstring); | |
108 | static int is_download_const(expression_t *immed); | |
2b48aed1 | 109 | static int is_location_address(symbol_t *symbol); |
f45ffaec | 110 | void yyerror(const char *string); |
1da177e4 LT |
111 | |
112 | #define SRAM_SYMNAME "SRAM_BASE" | |
113 | #define SCB_SYMNAME "SCB_BASE" | |
114 | %} | |
115 | ||
116 | %union { | |
117 | u_int value; | |
118 | char *str; | |
119 | symbol_t *sym; | |
120 | symbol_ref_t sym_ref; | |
121 | expression_t expression; | |
122 | } | |
123 | ||
124 | %token T_REGISTER | |
125 | ||
126 | %token <value> T_CONST | |
127 | ||
128 | %token T_EXPORT | |
129 | ||
130 | %token T_DOWNLOAD | |
131 | ||
132 | %token T_SCB | |
133 | ||
134 | %token T_SRAM | |
135 | ||
136 | %token T_ALIAS | |
137 | ||
138 | %token T_SIZE | |
139 | ||
140 | %token T_EXPR_LSHIFT | |
141 | ||
142 | %token T_EXPR_RSHIFT | |
143 | ||
144 | %token <value> T_ADDRESS | |
145 | ||
3dbd10f3 HR |
146 | %token T_COUNT |
147 | ||
1da177e4 LT |
148 | %token T_ACCESS_MODE |
149 | ||
150 | %token T_MODES | |
151 | ||
152 | %token T_DEFINE | |
153 | ||
154 | %token T_SET_SRC_MODE | |
155 | ||
156 | %token T_SET_DST_MODE | |
157 | ||
158 | %token <value> T_MODE | |
159 | ||
160 | %token T_BEGIN_CS | |
161 | ||
162 | %token T_END_CS | |
163 | ||
2628ed2b HR |
164 | %token T_PAD_PAGE |
165 | ||
1da177e4 LT |
166 | %token T_FIELD |
167 | ||
168 | %token T_ENUM | |
169 | ||
170 | %token T_MASK | |
171 | ||
172 | %token <value> T_NUMBER | |
173 | ||
174 | %token <str> T_PATH T_STRING T_ARG T_MACROBODY | |
175 | ||
176 | %token <sym> T_CEXPR | |
177 | ||
178 | %token T_EOF T_INCLUDE T_VERSION T_PREFIX T_PATCH_ARG_LIST | |
179 | ||
180 | %token <value> T_SHR T_SHL T_ROR T_ROL | |
181 | ||
182 | %token <value> T_MVI T_MOV T_CLR T_BMOV | |
183 | ||
184 | %token <value> T_JMP T_JC T_JNC T_JE T_JNE T_JNZ T_JZ T_CALL | |
185 | ||
186 | %token <value> T_ADD T_ADC | |
187 | ||
188 | %token <value> T_INC T_DEC | |
189 | ||
190 | %token <value> T_STC T_CLC | |
191 | ||
192 | %token <value> T_CMP T_NOT T_XOR | |
193 | ||
194 | %token <value> T_TEST T_AND | |
195 | ||
196 | %token <value> T_OR | |
197 | ||
2b48aed1 HR |
198 | /* 16 bit extensions, not implemented |
199 | * %token <value> T_OR16 T_AND16 T_XOR16 T_ADD16 | |
200 | * %token <value> T_ADC16 T_MVI16 T_TEST16 T_CMP16 T_CMPXCHG | |
201 | */ | |
1da177e4 LT |
202 | %token T_RET |
203 | ||
204 | %token T_NOP | |
205 | ||
206 | %token T_ACCUM T_ALLONES T_ALLZEROS T_NONE T_SINDEX T_MODE_PTR | |
207 | ||
208 | %token T_A | |
209 | ||
210 | %token <sym> T_SYMBOL | |
211 | ||
212 | %token T_NL | |
213 | ||
214 | %token T_IF T_ELSE T_ELSE_IF T_ENDIF | |
215 | ||
216 | %type <sym_ref> reg_symbol address destination source opt_source | |
217 | ||
218 | %type <expression> expression immediate immediate_or_a | |
219 | ||
2b48aed1 | 220 | %type <value> export ret f1_opcode f2_opcode jmp_jc_jnc_call jz_jnz je_jne |
1da177e4 LT |
221 | |
222 | %type <value> mode_value mode_list macro_arglist | |
223 | ||
224 | %left '|' | |
225 | %left '&' | |
226 | %left T_EXPR_LSHIFT T_EXPR_RSHIFT | |
227 | %left '+' '-' | |
228 | %left '*' '/' | |
229 | %right '~' | |
230 | %nonassoc UMINUS | |
231 | %% | |
232 | ||
233 | program: | |
234 | include | |
235 | | program include | |
236 | | prefix | |
237 | | program prefix | |
238 | | patch_arg_list | |
239 | | program patch_arg_list | |
240 | | version | |
241 | | program version | |
242 | | register | |
243 | | program register | |
244 | | constant | |
245 | | program constant | |
246 | | macrodefn | |
247 | | program macrodefn | |
248 | | scratch_ram | |
249 | | program scratch_ram | |
250 | | scb | |
251 | | program scb | |
252 | | label | |
253 | | program label | |
254 | | set_src_mode | |
255 | | program set_src_mode | |
256 | | set_dst_mode | |
257 | | program set_dst_mode | |
258 | | critical_section_start | |
259 | | program critical_section_start | |
260 | | critical_section_end | |
261 | | program critical_section_end | |
262 | | conditional | |
263 | | program conditional | |
264 | | code | |
265 | | program code | |
266 | ; | |
267 | ||
268 | include: | |
269 | T_INCLUDE '<' T_PATH '>' | |
270 | { | |
271 | include_file($3, BRACKETED_INCLUDE); | |
272 | } | |
273 | | T_INCLUDE '"' T_PATH '"' | |
274 | { | |
275 | include_file($3, QUOTED_INCLUDE); | |
276 | } | |
277 | ; | |
278 | ||
279 | prefix: | |
280 | T_PREFIX '=' T_STRING | |
281 | { | |
282 | if (prefix != stock_prefix) | |
283 | stop("Prefix multiply defined", | |
284 | EX_DATAERR); | |
285 | prefix = strdup($3); | |
286 | if (prefix == NULL) | |
287 | stop("Unable to record prefix", EX_SOFTWARE); | |
288 | } | |
289 | ; | |
290 | ||
291 | patch_arg_list: | |
292 | T_PATCH_ARG_LIST '=' T_STRING | |
293 | { | |
294 | if (patch_arg_list != NULL) | |
295 | stop("Patch argument list multiply defined", | |
296 | EX_DATAERR); | |
297 | patch_arg_list = strdup($3); | |
298 | if (patch_arg_list == NULL) | |
299 | stop("Unable to record patch arg list", EX_SOFTWARE); | |
300 | } | |
301 | ; | |
302 | ||
303 | version: | |
304 | T_VERSION '=' T_STRING | |
305 | { add_version($3); } | |
306 | ; | |
307 | ||
308 | register: | |
309 | T_REGISTER { cur_symtype = REGISTER; } reg_definition | |
310 | ; | |
311 | ||
312 | reg_definition: | |
313 | T_SYMBOL '{' | |
314 | { | |
315 | if ($1->type != UNINITIALIZED) { | |
316 | stop("Register multiply defined", EX_DATAERR); | |
317 | /* NOTREACHED */ | |
318 | } | |
2b48aed1 | 319 | cur_symbol = $1; |
1da177e4 LT |
320 | cur_symbol->type = cur_symtype; |
321 | initialize_symbol(cur_symbol); | |
322 | } | |
323 | reg_attribute_list | |
324 | '}' | |
2b48aed1 | 325 | { |
1da177e4 LT |
326 | /* |
327 | * Default to allowing everything in for registers | |
328 | * with no bit or mask definitions. | |
329 | */ | |
330 | if (cur_symbol->info.rinfo->valid_bitmask == 0) | |
331 | cur_symbol->info.rinfo->valid_bitmask = 0xFF; | |
332 | ||
333 | if (cur_symbol->info.rinfo->size == 0) | |
334 | cur_symbol->info.rinfo->size = 1; | |
335 | ||
336 | /* | |
337 | * This might be useful for registers too. | |
338 | */ | |
339 | if (cur_symbol->type != REGISTER) { | |
340 | if (cur_symbol->info.rinfo->address == 0) | |
341 | cur_symbol->info.rinfo->address = | |
342 | sram_or_scb_offset; | |
343 | sram_or_scb_offset += | |
344 | cur_symbol->info.rinfo->size; | |
345 | } | |
346 | cur_symbol = NULL; | |
347 | } | |
348 | ; | |
349 | ||
350 | reg_attribute_list: | |
351 | reg_attribute | |
352 | | reg_attribute_list reg_attribute | |
353 | ; | |
354 | ||
2b48aed1 | 355 | reg_attribute: |
1da177e4 LT |
356 | reg_address |
357 | | size | |
3dbd10f3 | 358 | | count |
1da177e4 LT |
359 | | access_mode |
360 | | modes | |
361 | | field_defn | |
362 | | enum_defn | |
363 | | mask_defn | |
364 | | alias | |
365 | | accumulator | |
366 | | mode_pointer | |
367 | | allones | |
368 | | allzeros | |
369 | | none | |
370 | | sindex | |
371 | ; | |
372 | ||
373 | reg_address: | |
374 | T_ADDRESS T_NUMBER | |
375 | { | |
376 | cur_symbol->info.rinfo->address = $2; | |
377 | } | |
378 | ; | |
379 | ||
380 | size: | |
381 | T_SIZE T_NUMBER | |
382 | { | |
383 | cur_symbol->info.rinfo->size = $2; | |
384 | if (scb_or_sram_symbol != NULL) { | |
385 | u_int max_addr; | |
386 | u_int sym_max_addr; | |
387 | ||
388 | max_addr = scb_or_sram_symbol->info.rinfo->address | |
389 | + scb_or_sram_symbol->info.rinfo->size; | |
390 | sym_max_addr = cur_symbol->info.rinfo->address | |
391 | + cur_symbol->info.rinfo->size; | |
392 | ||
393 | if (sym_max_addr > max_addr) | |
394 | stop("SCB or SRAM space exhausted", EX_DATAERR); | |
395 | } | |
396 | } | |
397 | ; | |
398 | ||
3dbd10f3 HR |
399 | count: |
400 | T_COUNT T_NUMBER | |
401 | { | |
402 | cur_symbol->count += $2; | |
403 | } | |
404 | ; | |
405 | ||
1da177e4 LT |
406 | access_mode: |
407 | T_ACCESS_MODE T_MODE | |
408 | { | |
409 | cur_symbol->info.rinfo->mode = $2; | |
410 | } | |
411 | ; | |
412 | ||
413 | modes: | |
414 | T_MODES mode_list | |
415 | { | |
416 | cur_symbol->info.rinfo->modes = $2; | |
417 | } | |
418 | ; | |
419 | ||
420 | mode_list: | |
421 | mode_value | |
422 | { | |
423 | $$ = $1; | |
424 | } | |
425 | | mode_list ',' mode_value | |
426 | { | |
427 | $$ = $1 | $3; | |
428 | } | |
429 | ; | |
430 | ||
431 | mode_value: | |
432 | T_NUMBER | |
433 | { | |
434 | if ($1 > 4) { | |
435 | stop("Valid register modes range between 0 and 4.", | |
436 | EX_DATAERR); | |
437 | /* NOTREACHED */ | |
438 | } | |
439 | ||
440 | $$ = (0x1 << $1); | |
441 | } | |
442 | | T_SYMBOL | |
443 | { | |
444 | symbol_t *symbol; | |
445 | ||
446 | symbol = $1; | |
447 | if (symbol->type != CONST) { | |
448 | stop("Only \"const\" symbols allowed in " | |
449 | "mode definitions.", EX_DATAERR); | |
450 | /* NOTREACHED */ | |
451 | } | |
452 | if (symbol->info.cinfo->value > 4) { | |
453 | stop("Valid register modes range between 0 and 4.", | |
454 | EX_DATAERR); | |
455 | /* NOTREACHED */ | |
456 | } | |
457 | $$ = (0x1 << symbol->info.cinfo->value); | |
458 | } | |
459 | ; | |
460 | ||
461 | field_defn: | |
462 | T_FIELD | |
463 | { | |
464 | field_symbol = NULL; | |
465 | enum_next_value = 0; | |
466 | enum_increment = 1; | |
467 | } | |
468 | '{' enum_entry_list '}' | |
469 | | T_FIELD T_SYMBOL expression | |
470 | { | |
471 | process_field(FIELD, $2, $3.value); | |
472 | field_symbol = $2; | |
473 | enum_next_value = 0; | |
474 | enum_increment = 0x01 << (ffs($3.value) - 1); | |
475 | } | |
476 | '{' enum_entry_list '}' | |
477 | | T_FIELD T_SYMBOL expression | |
478 | { | |
479 | process_field(FIELD, $2, $3.value); | |
480 | } | |
481 | ; | |
482 | ||
483 | enum_defn: | |
484 | T_ENUM | |
485 | { | |
486 | field_symbol = NULL; | |
487 | enum_next_value = 0; | |
488 | enum_increment = 1; | |
489 | } | |
490 | '{' enum_entry_list '}' | |
491 | | T_ENUM T_SYMBOL expression | |
492 | { | |
493 | process_field(ENUM, $2, $3.value); | |
494 | field_symbol = $2; | |
495 | enum_next_value = 0; | |
496 | enum_increment = 0x01 << (ffs($3.value) - 1); | |
497 | } | |
498 | '{' enum_entry_list '}' | |
499 | ; | |
500 | ||
501 | enum_entry_list: | |
502 | enum_entry | |
503 | | enum_entry_list ',' enum_entry | |
504 | ; | |
505 | ||
506 | enum_entry: | |
507 | T_SYMBOL | |
508 | { | |
509 | process_field(ENUM_ENTRY, $1, enum_next_value); | |
510 | enum_next_value += enum_increment; | |
511 | } | |
512 | | T_SYMBOL expression | |
513 | { | |
514 | process_field(ENUM_ENTRY, $1, $2.value); | |
515 | enum_next_value = $2.value + enum_increment; | |
516 | } | |
517 | ; | |
518 | ||
519 | mask_defn: | |
520 | T_MASK T_SYMBOL expression | |
521 | { | |
522 | process_field(MASK, $2, $3.value); | |
523 | } | |
524 | ; | |
525 | ||
526 | alias: | |
527 | T_ALIAS T_SYMBOL | |
528 | { | |
529 | if ($2->type != UNINITIALIZED) { | |
530 | stop("Re-definition of register alias", | |
531 | EX_DATAERR); | |
532 | /* NOTREACHED */ | |
533 | } | |
534 | $2->type = ALIAS; | |
535 | initialize_symbol($2); | |
536 | $2->info.ainfo->parent = cur_symbol; | |
537 | } | |
538 | ; | |
539 | ||
540 | accumulator: | |
541 | T_ACCUM | |
542 | { | |
543 | if (accumulator.symbol != NULL) { | |
544 | stop("Only one accumulator definition allowed", | |
545 | EX_DATAERR); | |
546 | /* NOTREACHED */ | |
547 | } | |
548 | accumulator.symbol = cur_symbol; | |
549 | } | |
550 | ; | |
551 | ||
552 | mode_pointer: | |
553 | T_MODE_PTR | |
554 | { | |
555 | if (mode_ptr.symbol != NULL) { | |
556 | stop("Only one mode pointer definition allowed", | |
557 | EX_DATAERR); | |
558 | /* NOTREACHED */ | |
559 | } | |
560 | mode_ptr.symbol = cur_symbol; | |
561 | } | |
562 | ; | |
563 | ||
564 | allones: | |
565 | T_ALLONES | |
566 | { | |
567 | if (allones.symbol != NULL) { | |
568 | stop("Only one definition of allones allowed", | |
569 | EX_DATAERR); | |
570 | /* NOTREACHED */ | |
571 | } | |
572 | allones.symbol = cur_symbol; | |
573 | } | |
574 | ; | |
575 | ||
576 | allzeros: | |
577 | T_ALLZEROS | |
578 | { | |
579 | if (allzeros.symbol != NULL) { | |
580 | stop("Only one definition of allzeros allowed", | |
581 | EX_DATAERR); | |
582 | /* NOTREACHED */ | |
583 | } | |
584 | allzeros.symbol = cur_symbol; | |
585 | } | |
586 | ; | |
587 | ||
588 | none: | |
589 | T_NONE | |
590 | { | |
591 | if (none.symbol != NULL) { | |
592 | stop("Only one definition of none allowed", | |
593 | EX_DATAERR); | |
594 | /* NOTREACHED */ | |
595 | } | |
596 | none.symbol = cur_symbol; | |
597 | } | |
598 | ; | |
599 | ||
600 | sindex: | |
601 | T_SINDEX | |
602 | { | |
603 | if (sindex.symbol != NULL) { | |
604 | stop("Only one definition of sindex allowed", | |
605 | EX_DATAERR); | |
606 | /* NOTREACHED */ | |
607 | } | |
608 | sindex.symbol = cur_symbol; | |
609 | } | |
610 | ; | |
611 | ||
612 | expression: | |
613 | expression '|' expression | |
614 | { | |
615 | $$.value = $1.value | $3.value; | |
616 | symlist_merge(&$$.referenced_syms, | |
617 | &$1.referenced_syms, | |
618 | &$3.referenced_syms); | |
619 | } | |
620 | | expression '&' expression | |
621 | { | |
622 | $$.value = $1.value & $3.value; | |
623 | symlist_merge(&$$.referenced_syms, | |
624 | &$1.referenced_syms, | |
625 | &$3.referenced_syms); | |
626 | } | |
627 | | expression '+' expression | |
628 | { | |
629 | $$.value = $1.value + $3.value; | |
630 | symlist_merge(&$$.referenced_syms, | |
631 | &$1.referenced_syms, | |
632 | &$3.referenced_syms); | |
633 | } | |
634 | | expression '-' expression | |
635 | { | |
636 | $$.value = $1.value - $3.value; | |
637 | symlist_merge(&($$.referenced_syms), | |
638 | &($1.referenced_syms), | |
639 | &($3.referenced_syms)); | |
640 | } | |
641 | | expression '*' expression | |
642 | { | |
643 | $$.value = $1.value * $3.value; | |
644 | symlist_merge(&($$.referenced_syms), | |
645 | &($1.referenced_syms), | |
646 | &($3.referenced_syms)); | |
647 | } | |
648 | | expression '/' expression | |
649 | { | |
650 | $$.value = $1.value / $3.value; | |
651 | symlist_merge(&($$.referenced_syms), | |
652 | &($1.referenced_syms), | |
653 | &($3.referenced_syms)); | |
654 | } | |
2b48aed1 | 655 | | expression T_EXPR_LSHIFT expression |
1da177e4 LT |
656 | { |
657 | $$.value = $1.value << $3.value; | |
658 | symlist_merge(&$$.referenced_syms, | |
659 | &$1.referenced_syms, | |
660 | &$3.referenced_syms); | |
661 | } | |
2b48aed1 | 662 | | expression T_EXPR_RSHIFT expression |
1da177e4 LT |
663 | { |
664 | $$.value = $1.value >> $3.value; | |
665 | symlist_merge(&$$.referenced_syms, | |
666 | &$1.referenced_syms, | |
667 | &$3.referenced_syms); | |
668 | } | |
669 | | '(' expression ')' | |
670 | { | |
671 | $$ = $2; | |
672 | } | |
673 | | '~' expression | |
674 | { | |
675 | $$ = $2; | |
676 | $$.value = (~$$.value) & 0xFF; | |
677 | } | |
678 | | '-' expression %prec UMINUS | |
679 | { | |
680 | $$ = $2; | |
681 | $$.value = -$$.value; | |
682 | } | |
683 | | T_NUMBER | |
684 | { | |
685 | $$.value = $1; | |
686 | SLIST_INIT(&$$.referenced_syms); | |
687 | } | |
688 | | T_SYMBOL | |
689 | { | |
690 | symbol_t *symbol; | |
691 | ||
692 | symbol = $1; | |
693 | switch (symbol->type) { | |
694 | case ALIAS: | |
695 | symbol = $1->info.ainfo->parent; | |
696 | case REGISTER: | |
697 | case SCBLOC: | |
698 | case SRAMLOC: | |
699 | $$.value = symbol->info.rinfo->address; | |
700 | break; | |
701 | case MASK: | |
702 | case FIELD: | |
703 | case ENUM: | |
704 | case ENUM_ENTRY: | |
705 | $$.value = symbol->info.finfo->value; | |
706 | break; | |
707 | case DOWNLOAD_CONST: | |
708 | case CONST: | |
709 | $$.value = symbol->info.cinfo->value; | |
710 | break; | |
711 | case UNINITIALIZED: | |
712 | default: | |
713 | { | |
714 | snprintf(errbuf, sizeof(errbuf), | |
715 | "Undefined symbol %s referenced", | |
716 | symbol->name); | |
717 | stop(errbuf, EX_DATAERR); | |
718 | /* NOTREACHED */ | |
719 | break; | |
720 | } | |
721 | } | |
722 | SLIST_INIT(&$$.referenced_syms); | |
723 | symlist_add(&$$.referenced_syms, symbol, SYMLIST_INSERT_HEAD); | |
724 | } | |
725 | ; | |
726 | ||
727 | constant: | |
2b48aed1 | 728 | T_CONST T_SYMBOL expression |
1da177e4 LT |
729 | { |
730 | if ($2->type != UNINITIALIZED) { | |
731 | stop("Re-definition of symbol as a constant", | |
732 | EX_DATAERR); | |
733 | /* NOTREACHED */ | |
734 | } | |
735 | $2->type = CONST; | |
736 | initialize_symbol($2); | |
737 | $2->info.cinfo->value = $3.value; | |
738 | } | |
739 | | T_CONST T_SYMBOL T_DOWNLOAD | |
740 | { | |
741 | if ($1) { | |
742 | stop("Invalid downloaded constant declaration", | |
743 | EX_DATAERR); | |
744 | /* NOTREACHED */ | |
745 | } | |
746 | if ($2->type != UNINITIALIZED) { | |
747 | stop("Re-definition of symbol as a downloaded constant", | |
748 | EX_DATAERR); | |
749 | /* NOTREACHED */ | |
750 | } | |
751 | $2->type = DOWNLOAD_CONST; | |
752 | initialize_symbol($2); | |
753 | $2->info.cinfo->value = download_constant_count++; | |
754 | } | |
755 | ; | |
756 | ||
757 | macrodefn_prologue: | |
758 | T_DEFINE T_SYMBOL | |
759 | { | |
760 | if ($2->type != UNINITIALIZED) { | |
761 | stop("Re-definition of symbol as a macro", | |
762 | EX_DATAERR); | |
763 | /* NOTREACHED */ | |
764 | } | |
765 | cur_symbol = $2; | |
766 | cur_symbol->type = MACRO; | |
767 | initialize_symbol(cur_symbol); | |
768 | } | |
769 | ; | |
770 | ||
771 | macrodefn: | |
772 | macrodefn_prologue T_MACROBODY | |
773 | { | |
774 | add_macro_body($2); | |
775 | } | |
776 | | macrodefn_prologue '(' macro_arglist ')' T_MACROBODY | |
777 | { | |
778 | add_macro_body($5); | |
779 | cur_symbol->info.macroinfo->narg = $3; | |
780 | } | |
781 | ; | |
782 | ||
783 | macro_arglist: | |
784 | { | |
785 | /* Macros can take no arguments */ | |
786 | $$ = 0; | |
787 | } | |
788 | | T_ARG | |
789 | { | |
790 | $$ = 1; | |
791 | add_macro_arg($1, 0); | |
792 | } | |
793 | | macro_arglist ',' T_ARG | |
794 | { | |
795 | if ($1 == 0) { | |
796 | stop("Comma without preceeding argument in arg list", | |
797 | EX_DATAERR); | |
798 | /* NOTREACHED */ | |
799 | } | |
800 | $$ = $1 + 1; | |
801 | add_macro_arg($3, $1); | |
802 | } | |
803 | ; | |
804 | ||
805 | scratch_ram: | |
806 | T_SRAM '{' | |
807 | { | |
808 | snprintf(errbuf, sizeof(errbuf), "%s%d", SRAM_SYMNAME, | |
809 | num_srams); | |
810 | cur_symbol = symtable_get(SRAM_SYMNAME); | |
811 | cur_symtype = SRAMLOC; | |
812 | cur_symbol->type = SRAMLOC; | |
813 | initialize_symbol(cur_symbol); | |
3dbd10f3 | 814 | cur_symbol->count += 1; |
1da177e4 LT |
815 | } |
816 | reg_address | |
817 | { | |
818 | sram_or_scb_offset = cur_symbol->info.rinfo->address; | |
819 | } | |
820 | size | |
821 | { | |
822 | scb_or_sram_symbol = cur_symbol; | |
823 | } | |
824 | scb_or_sram_attributes | |
825 | '}' | |
826 | { | |
827 | cur_symbol = NULL; | |
828 | scb_or_sram_symbol = NULL; | |
829 | } | |
830 | ; | |
831 | ||
832 | scb: | |
833 | T_SCB '{' | |
834 | { | |
835 | cur_symbol = symtable_get(SCB_SYMNAME); | |
836 | cur_symtype = SCBLOC; | |
837 | if (cur_symbol->type != UNINITIALIZED) { | |
838 | stop("Only one SRAM definition allowed", | |
839 | EX_SOFTWARE); | |
840 | /* NOTREACHED */ | |
841 | } | |
842 | cur_symbol->type = SCBLOC; | |
843 | initialize_symbol(cur_symbol); | |
844 | /* 64 bytes of SCB space */ | |
845 | cur_symbol->info.rinfo->size = 64; | |
3dbd10f3 | 846 | cur_symbol->count += 1; |
1da177e4 LT |
847 | } |
848 | reg_address | |
849 | { | |
850 | sram_or_scb_offset = cur_symbol->info.rinfo->address; | |
851 | } | |
852 | size | |
853 | { | |
854 | scb_or_sram_symbol = cur_symbol; | |
855 | } | |
856 | scb_or_sram_attributes | |
857 | '}' | |
858 | { | |
859 | cur_symbol = NULL; | |
860 | scb_or_sram_symbol = NULL; | |
861 | } | |
862 | ; | |
863 | ||
864 | scb_or_sram_attributes: | |
865 | /* NULL definition is okay */ | |
866 | | modes | |
867 | | scb_or_sram_reg_list | |
868 | | modes scb_or_sram_reg_list | |
869 | ; | |
870 | ||
871 | scb_or_sram_reg_list: | |
872 | reg_definition | |
873 | | scb_or_sram_reg_list reg_definition | |
874 | ; | |
875 | ||
876 | reg_symbol: | |
877 | T_SYMBOL | |
878 | { | |
879 | process_register(&$1); | |
880 | $$.symbol = $1; | |
881 | $$.offset = 0; | |
882 | } | |
883 | | T_SYMBOL '[' T_SYMBOL ']' | |
884 | { | |
885 | process_register(&$1); | |
886 | if ($3->type != CONST) { | |
887 | stop("register offset must be a constant", EX_DATAERR); | |
888 | /* NOTREACHED */ | |
889 | } | |
890 | if (($3->info.cinfo->value + 1) > $1->info.rinfo->size) { | |
891 | stop("Accessing offset beyond range of register", | |
892 | EX_DATAERR); | |
893 | /* NOTREACHED */ | |
894 | } | |
895 | $$.symbol = $1; | |
896 | $$.offset = $3->info.cinfo->value; | |
897 | } | |
898 | | T_SYMBOL '[' T_NUMBER ']' | |
899 | { | |
900 | process_register(&$1); | |
901 | if (($3 + 1) > $1->info.rinfo->size) { | |
902 | stop("Accessing offset beyond range of register", | |
903 | EX_DATAERR); | |
904 | /* NOTREACHED */ | |
905 | } | |
906 | $$.symbol = $1; | |
907 | $$.offset = $3; | |
908 | } | |
909 | | T_A | |
910 | { | |
911 | if (accumulator.symbol == NULL) { | |
912 | stop("No accumulator has been defined", EX_DATAERR); | |
913 | /* NOTREACHED */ | |
914 | } | |
915 | $$.symbol = accumulator.symbol; | |
916 | $$.offset = 0; | |
917 | } | |
918 | ; | |
919 | ||
920 | destination: | |
921 | reg_symbol | |
922 | { | |
923 | test_writable_symbol($1.symbol); | |
924 | $$ = $1; | |
925 | } | |
926 | ; | |
927 | ||
928 | immediate: | |
929 | expression | |
930 | { $$ = $1; } | |
931 | ; | |
932 | ||
933 | immediate_or_a: | |
934 | expression | |
935 | { | |
936 | if ($1.value == 0 && is_download_const(&$1) == 0) { | |
937 | snprintf(errbuf, sizeof(errbuf), | |
938 | "\nExpression evaluates to 0 and thus " | |
939 | "references the accumulator.\n " | |
940 | "If this is the desired effect, use 'A' " | |
941 | "instead.\n"); | |
942 | stop(errbuf, EX_DATAERR); | |
943 | } | |
944 | $$ = $1; | |
945 | } | |
946 | | T_A | |
947 | { | |
948 | SLIST_INIT(&$$.referenced_syms); | |
949 | symlist_add(&$$.referenced_syms, accumulator.symbol, | |
950 | SYMLIST_INSERT_HEAD); | |
951 | $$.value = 0; | |
952 | } | |
953 | ; | |
954 | ||
955 | source: | |
956 | reg_symbol | |
957 | { | |
958 | test_readable_symbol($1.symbol); | |
959 | $$ = $1; | |
960 | } | |
961 | ; | |
962 | ||
963 | opt_source: | |
964 | { | |
965 | $$.symbol = NULL; | |
966 | $$.offset = 0; | |
967 | } | |
968 | | ',' source | |
969 | { $$ = $2; } | |
970 | ; | |
971 | ||
972 | ret: | |
973 | { $$ = 0; } | |
974 | | T_RET | |
975 | { $$ = 1; } | |
976 | ; | |
977 | ||
978 | set_src_mode: | |
979 | T_SET_SRC_MODE T_NUMBER ';' | |
980 | { | |
981 | src_mode = $2; | |
982 | } | |
983 | ; | |
984 | ||
985 | set_dst_mode: | |
986 | T_SET_DST_MODE T_NUMBER ';' | |
987 | { | |
988 | dst_mode = $2; | |
989 | } | |
990 | ; | |
991 | ||
992 | critical_section_start: | |
993 | T_BEGIN_CS ';' | |
994 | { | |
995 | critical_section_t *cs; | |
996 | ||
997 | if (in_critical_section != FALSE) { | |
998 | stop("Critical Section within Critical Section", | |
999 | EX_DATAERR); | |
1000 | /* NOTREACHED */ | |
1001 | } | |
1002 | cs = cs_alloc(); | |
1003 | cs->begin_addr = instruction_ptr; | |
1004 | in_critical_section = TRUE; | |
1005 | } | |
1006 | ; | |
1007 | ||
1008 | critical_section_end: | |
1009 | T_END_CS ';' | |
1010 | { | |
1011 | critical_section_t *cs; | |
1012 | ||
1013 | if (in_critical_section == FALSE) { | |
1014 | stop("Unballanced 'end_cs'", EX_DATAERR); | |
1015 | /* NOTREACHED */ | |
1016 | } | |
1017 | cs = TAILQ_LAST(&cs_tailq, cs_tailq); | |
1018 | cs->end_addr = instruction_ptr; | |
1019 | in_critical_section = FALSE; | |
1020 | } | |
1021 | ; | |
1022 | ||
1023 | export: | |
1024 | { $$ = 0; } | |
1025 | | T_EXPORT | |
1026 | { $$ = 1; } | |
1027 | ; | |
1028 | ||
1029 | label: | |
1030 | export T_SYMBOL ':' | |
1031 | { | |
1032 | if ($2->type != UNINITIALIZED) { | |
1033 | stop("Program label multiply defined", EX_DATAERR); | |
1034 | /* NOTREACHED */ | |
1035 | } | |
1036 | $2->type = LABEL; | |
1037 | initialize_symbol($2); | |
1038 | $2->info.linfo->address = instruction_ptr; | |
1039 | $2->info.linfo->exported = $1; | |
1040 | } | |
1041 | ; | |
1042 | ||
1043 | address: | |
1044 | T_SYMBOL | |
1045 | { | |
1046 | $$.symbol = $1; | |
1047 | $$.offset = 0; | |
1048 | } | |
1049 | | T_SYMBOL '+' T_NUMBER | |
1050 | { | |
1051 | $$.symbol = $1; | |
1052 | $$.offset = $3; | |
1053 | } | |
1054 | | T_SYMBOL '-' T_NUMBER | |
1055 | { | |
1056 | $$.symbol = $1; | |
1057 | $$.offset = -$3; | |
1058 | } | |
1059 | | '.' | |
1060 | { | |
1061 | $$.symbol = NULL; | |
1062 | $$.offset = 0; | |
1063 | } | |
1064 | | '.' '+' T_NUMBER | |
1065 | { | |
1066 | $$.symbol = NULL; | |
1067 | $$.offset = $3; | |
1068 | } | |
1069 | | '.' '-' T_NUMBER | |
1070 | { | |
1071 | $$.symbol = NULL; | |
1072 | $$.offset = -$3; | |
1073 | } | |
1074 | ; | |
1075 | ||
1076 | conditional: | |
1077 | T_IF T_CEXPR '{' | |
1078 | { | |
1079 | scope_t *new_scope; | |
1080 | ||
1081 | add_conditional($2); | |
1082 | new_scope = scope_alloc(); | |
1083 | new_scope->type = SCOPE_IF; | |
1084 | new_scope->begin_addr = instruction_ptr; | |
1085 | new_scope->func_num = $2->info.condinfo->func_num; | |
1086 | } | |
1087 | | T_ELSE T_IF T_CEXPR '{' | |
1088 | { | |
1089 | scope_t *new_scope; | |
1090 | scope_t *scope_context; | |
1091 | scope_t *last_scope; | |
1092 | ||
1093 | /* | |
1094 | * Ensure that the previous scope is either an | |
1095 | * if or and else if. | |
1096 | */ | |
1097 | scope_context = SLIST_FIRST(&scope_stack); | |
1098 | last_scope = TAILQ_LAST(&scope_context->inner_scope, | |
1099 | scope_tailq); | |
1100 | if (last_scope == NULL | |
1101 | || last_scope->type == T_ELSE) { | |
1102 | ||
1103 | stop("'else if' without leading 'if'", EX_DATAERR); | |
1104 | /* NOTREACHED */ | |
1105 | } | |
1106 | add_conditional($3); | |
1107 | new_scope = scope_alloc(); | |
1108 | new_scope->type = SCOPE_ELSE_IF; | |
1109 | new_scope->begin_addr = instruction_ptr; | |
1110 | new_scope->func_num = $3->info.condinfo->func_num; | |
1111 | } | |
1112 | | T_ELSE '{' | |
1113 | { | |
1114 | scope_t *new_scope; | |
1115 | scope_t *scope_context; | |
1116 | scope_t *last_scope; | |
1117 | ||
1118 | /* | |
1119 | * Ensure that the previous scope is either an | |
1120 | * if or and else if. | |
1121 | */ | |
1122 | scope_context = SLIST_FIRST(&scope_stack); | |
1123 | last_scope = TAILQ_LAST(&scope_context->inner_scope, | |
1124 | scope_tailq); | |
1125 | if (last_scope == NULL | |
1126 | || last_scope->type == SCOPE_ELSE) { | |
1127 | ||
1128 | stop("'else' without leading 'if'", EX_DATAERR); | |
1129 | /* NOTREACHED */ | |
1130 | } | |
1131 | new_scope = scope_alloc(); | |
1132 | new_scope->type = SCOPE_ELSE; | |
1133 | new_scope->begin_addr = instruction_ptr; | |
1134 | } | |
1135 | ; | |
1136 | ||
1137 | conditional: | |
1138 | '}' | |
1139 | { | |
1140 | scope_t *scope_context; | |
1141 | ||
1142 | scope_context = SLIST_FIRST(&scope_stack); | |
1143 | if (scope_context->type == SCOPE_ROOT) { | |
1144 | stop("Unexpected '}' encountered", EX_DATAERR); | |
1145 | /* NOTREACHED */ | |
1146 | } | |
1147 | ||
1148 | scope_context->end_addr = instruction_ptr; | |
1149 | ||
1150 | /* Pop the scope */ | |
1151 | SLIST_REMOVE_HEAD(&scope_stack, scope_stack_links); | |
1152 | ||
1153 | process_scope(scope_context); | |
1154 | ||
1155 | if (SLIST_FIRST(&scope_stack) == NULL) { | |
1156 | stop("Unexpected '}' encountered", EX_DATAERR); | |
1157 | /* NOTREACHED */ | |
1158 | } | |
1159 | } | |
1160 | ; | |
1161 | ||
1162 | f1_opcode: | |
1163 | T_AND { $$ = AIC_OP_AND; } | |
1164 | | T_XOR { $$ = AIC_OP_XOR; } | |
1165 | | T_ADD { $$ = AIC_OP_ADD; } | |
1166 | | T_ADC { $$ = AIC_OP_ADC; } | |
1167 | ; | |
1168 | ||
1169 | code: | |
1170 | f1_opcode destination ',' immediate_or_a opt_source ret ';' | |
1171 | { | |
1172 | format_1_instr($1, &$2, &$4, &$5, $6); | |
1173 | } | |
1174 | ; | |
1175 | ||
1176 | code: | |
1177 | T_OR reg_symbol ',' immediate_or_a opt_source ret ';' | |
1178 | { | |
1179 | format_1_instr(AIC_OP_OR, &$2, &$4, &$5, $6); | |
1180 | } | |
1181 | ; | |
1182 | ||
1183 | code: | |
1184 | T_INC destination opt_source ret ';' | |
1185 | { | |
1186 | expression_t immed; | |
1187 | ||
1188 | make_expression(&immed, 1); | |
1189 | format_1_instr(AIC_OP_ADD, &$2, &immed, &$3, $4); | |
1190 | } | |
1191 | ; | |
1192 | ||
1193 | code: | |
1194 | T_DEC destination opt_source ret ';' | |
1195 | { | |
1196 | expression_t immed; | |
1197 | ||
1198 | make_expression(&immed, -1); | |
1199 | format_1_instr(AIC_OP_ADD, &$2, &immed, &$3, $4); | |
1200 | } | |
1201 | ; | |
1202 | ||
1203 | code: | |
1204 | T_CLC ret ';' | |
1205 | { | |
1206 | expression_t immed; | |
1207 | ||
1208 | make_expression(&immed, -1); | |
1209 | format_1_instr(AIC_OP_ADD, &none, &immed, &allzeros, $2); | |
1210 | } | |
1211 | | T_CLC T_MVI destination ',' immediate_or_a ret ';' | |
1212 | { | |
1213 | format_1_instr(AIC_OP_ADD, &$3, &$5, &allzeros, $6); | |
1214 | } | |
1215 | ; | |
1216 | ||
1217 | code: | |
1218 | T_STC ret ';' | |
1219 | { | |
1220 | expression_t immed; | |
1221 | ||
1222 | make_expression(&immed, 1); | |
1223 | format_1_instr(AIC_OP_ADD, &none, &immed, &allones, $2); | |
1224 | } | |
1225 | | T_STC destination ret ';' | |
1226 | { | |
1227 | expression_t immed; | |
1228 | ||
1229 | make_expression(&immed, 1); | |
1230 | format_1_instr(AIC_OP_ADD, &$2, &immed, &allones, $3); | |
1231 | } | |
1232 | ; | |
1233 | ||
1234 | code: | |
1235 | T_BMOV destination ',' source ',' immediate ret ';' | |
1236 | { | |
1237 | format_1_instr(AIC_OP_BMOV, &$2, &$6, &$4, $7); | |
1238 | } | |
1239 | ; | |
1240 | ||
1241 | code: | |
1242 | T_MOV destination ',' source ret ';' | |
1243 | { | |
1244 | expression_t immed; | |
1245 | ||
1246 | make_expression(&immed, 1); | |
1247 | format_1_instr(AIC_OP_BMOV, &$2, &immed, &$4, $5); | |
1248 | } | |
1249 | ; | |
1250 | ||
1251 | code: | |
1252 | T_MVI destination ',' immediate ret ';' | |
1253 | { | |
1254 | if ($4.value == 0 | |
1255 | && is_download_const(&$4) == 0) { | |
1256 | expression_t immed; | |
1257 | ||
1258 | /* | |
1259 | * Allow move immediates of 0 so that macros, | |
1260 | * that can't know the immediate's value and | |
1261 | * otherwise compensate, still work. | |
1262 | */ | |
1263 | make_expression(&immed, 1); | |
1264 | format_1_instr(AIC_OP_BMOV, &$2, &immed, &allzeros, $5); | |
1265 | } else { | |
1266 | format_1_instr(AIC_OP_OR, &$2, &$4, &allzeros, $5); | |
1267 | } | |
1268 | } | |
1269 | ; | |
1270 | ||
1271 | code: | |
1272 | T_NOT destination opt_source ret ';' | |
1273 | { | |
1274 | expression_t immed; | |
1275 | ||
1276 | make_expression(&immed, 0xff); | |
1277 | format_1_instr(AIC_OP_XOR, &$2, &immed, &$3, $4); | |
1278 | } | |
1279 | ; | |
1280 | ||
1281 | code: | |
1282 | T_CLR destination ret ';' | |
1283 | { | |
1284 | expression_t immed; | |
1285 | ||
1286 | make_expression(&immed, 0xff); | |
1287 | format_1_instr(AIC_OP_AND, &$2, &immed, &allzeros, $3); | |
1288 | } | |
1289 | ; | |
1290 | ||
1291 | code: | |
1292 | T_NOP ret ';' | |
1293 | { | |
1294 | expression_t immed; | |
1295 | ||
1296 | make_expression(&immed, 0xff); | |
1297 | format_1_instr(AIC_OP_AND, &none, &immed, &allzeros, $2); | |
1298 | } | |
1299 | ; | |
1300 | ||
1301 | code: | |
1302 | T_RET ';' | |
1303 | { | |
1304 | expression_t immed; | |
1305 | ||
1306 | make_expression(&immed, 0xff); | |
1307 | format_1_instr(AIC_OP_AND, &none, &immed, &allzeros, TRUE); | |
1308 | } | |
1309 | ; | |
1310 | ||
1311 | /* | |
1312 | * This grammer differs from the one in the aic7xxx | |
1313 | * reference manual since the grammer listed there is | |
1314 | * ambiguous and causes a shift/reduce conflict. | |
1315 | * It also seems more logical as the "immediate" | |
1316 | * argument is listed as the second arg like the | |
1317 | * other formats. | |
1318 | */ | |
1319 | ||
1320 | f2_opcode: | |
1321 | T_SHL { $$ = AIC_OP_SHL; } | |
1322 | | T_SHR { $$ = AIC_OP_SHR; } | |
1323 | | T_ROL { $$ = AIC_OP_ROL; } | |
1324 | | T_ROR { $$ = AIC_OP_ROR; } | |
1325 | ; | |
1326 | ||
2b48aed1 HR |
1327 | /* |
1328 | * 16bit opcodes, not used | |
1329 | * | |
1330 | *f4_opcode: | |
1331 | * T_OR16 { $$ = AIC_OP_OR16; } | |
1332 | *| T_AND16 { $$ = AIC_OP_AND16; } | |
1333 | *| T_XOR16 { $$ = AIC_OP_XOR16; } | |
1334 | *| T_ADD16 { $$ = AIC_OP_ADD16; } | |
1335 | *| T_ADC16 { $$ = AIC_OP_ADC16; } | |
1336 | *| T_MVI16 { $$ = AIC_OP_MVI16; } | |
1337 | *; | |
1338 | */ | |
2628ed2b | 1339 | |
1da177e4 LT |
1340 | code: |
1341 | f2_opcode destination ',' expression opt_source ret ';' | |
1342 | { | |
1343 | format_2_instr($1, &$2, &$4, &$5, $6); | |
1344 | } | |
1345 | ; | |
1346 | ||
1347 | jmp_jc_jnc_call: | |
1348 | T_JMP { $$ = AIC_OP_JMP; } | |
1349 | | T_JC { $$ = AIC_OP_JC; } | |
1350 | | T_JNC { $$ = AIC_OP_JNC; } | |
1351 | | T_CALL { $$ = AIC_OP_CALL; } | |
1352 | ; | |
1353 | ||
1354 | jz_jnz: | |
1355 | T_JZ { $$ = AIC_OP_JZ; } | |
1356 | | T_JNZ { $$ = AIC_OP_JNZ; } | |
1357 | ; | |
1358 | ||
1359 | je_jne: | |
1360 | T_JE { $$ = AIC_OP_JE; } | |
1361 | | T_JNE { $$ = AIC_OP_JNE; } | |
1362 | ; | |
1363 | ||
1364 | code: | |
1365 | jmp_jc_jnc_call address ';' | |
1366 | { | |
1367 | expression_t immed; | |
1368 | ||
1369 | make_expression(&immed, 0); | |
1370 | format_3_instr($1, &sindex, &immed, &$2); | |
1371 | } | |
1372 | ; | |
1373 | ||
1374 | code: | |
1375 | T_OR reg_symbol ',' immediate jmp_jc_jnc_call address ';' | |
1376 | { | |
2b48aed1 | 1377 | type_check(&$2, &$4, AIC_OP_OR); |
1da177e4 LT |
1378 | format_3_instr($5, &$2, &$4, &$6); |
1379 | } | |
1380 | ; | |
1381 | ||
1382 | code: | |
1383 | T_TEST source ',' immediate_or_a jz_jnz address ';' | |
1384 | { | |
1385 | format_3_instr($5, &$2, &$4, &$6); | |
1386 | } | |
1387 | ; | |
1388 | ||
1389 | code: | |
1390 | T_CMP source ',' immediate_or_a je_jne address ';' | |
1391 | { | |
1392 | format_3_instr($5, &$2, &$4, &$6); | |
1393 | } | |
1394 | ; | |
1395 | ||
1396 | code: | |
1397 | T_MOV source jmp_jc_jnc_call address ';' | |
1398 | { | |
1399 | expression_t immed; | |
1400 | ||
1401 | make_expression(&immed, 0); | |
1402 | format_3_instr($3, &$2, &immed, &$4); | |
1403 | } | |
1404 | ; | |
1405 | ||
1406 | code: | |
1407 | T_MVI immediate jmp_jc_jnc_call address ';' | |
1408 | { | |
1409 | format_3_instr($3, &allzeros, &$2, &$4); | |
1410 | } | |
1411 | ; | |
1412 | ||
1413 | %% | |
1414 | ||
1415 | static void | |
1416 | process_field(int field_type, symbol_t *sym, int value) | |
1417 | { | |
1418 | /* | |
1419 | * Add the current register to its | |
1420 | * symbol list, if it already exists, | |
1421 | * warn if we are setting it to a | |
1422 | * different value, or in the bit to | |
1423 | * the "allowed bits" of this register. | |
1424 | */ | |
1425 | if (sym->type == UNINITIALIZED) { | |
1426 | sym->type = field_type; | |
1427 | initialize_symbol(sym); | |
1428 | sym->info.finfo->value = value; | |
1429 | if (field_type != ENUM_ENTRY) { | |
1430 | if (field_type != MASK && value == 0) { | |
1431 | stop("Empty Field, or Enum", EX_DATAERR); | |
1432 | /* NOTREACHED */ | |
1433 | } | |
1434 | sym->info.finfo->value = value; | |
1435 | sym->info.finfo->mask = value; | |
1436 | } else if (field_symbol != NULL) { | |
1437 | sym->info.finfo->mask = field_symbol->info.finfo->value; | |
1438 | } else { | |
1439 | sym->info.finfo->mask = 0xFF; | |
1440 | } | |
1441 | } else if (sym->type != field_type) { | |
1442 | stop("Field definition mirrors a definition of the same " | |
1443 | " name, but a different type", EX_DATAERR); | |
1444 | /* NOTREACHED */ | |
1445 | } else if (value != sym->info.finfo->value) { | |
1446 | stop("Field redefined with a conflicting value", EX_DATAERR); | |
1447 | /* NOTREACHED */ | |
1448 | } | |
1449 | /* Fail if this symbol is already listed */ | |
1450 | if (symlist_search(&(sym->info.finfo->symrefs), | |
1451 | cur_symbol->name) != NULL) { | |
1452 | stop("Field defined multiple times for register", EX_DATAERR); | |
1453 | /* NOTREACHED */ | |
1454 | } | |
1455 | symlist_add(&(sym->info.finfo->symrefs), cur_symbol, | |
1456 | SYMLIST_INSERT_HEAD); | |
1457 | cur_symbol->info.rinfo->valid_bitmask |= sym->info.finfo->mask; | |
1458 | cur_symbol->info.rinfo->typecheck_masks = TRUE; | |
1459 | symlist_add(&(cur_symbol->info.rinfo->fields), sym, SYMLIST_SORT); | |
1460 | } | |
1461 | ||
1462 | static void | |
1463 | initialize_symbol(symbol_t *symbol) | |
1464 | { | |
1465 | switch (symbol->type) { | |
1466 | case UNINITIALIZED: | |
1467 | stop("Call to initialize_symbol with type field unset", | |
1468 | EX_SOFTWARE); | |
1469 | /* NOTREACHED */ | |
1470 | break; | |
1471 | case REGISTER: | |
1472 | case SRAMLOC: | |
1473 | case SCBLOC: | |
1474 | symbol->info.rinfo = | |
1475 | (struct reg_info *)malloc(sizeof(struct reg_info)); | |
1476 | if (symbol->info.rinfo == NULL) { | |
1477 | stop("Can't create register info", EX_SOFTWARE); | |
1478 | /* NOTREACHED */ | |
1479 | } | |
1480 | memset(symbol->info.rinfo, 0, | |
1481 | sizeof(struct reg_info)); | |
1482 | SLIST_INIT(&(symbol->info.rinfo->fields)); | |
1483 | /* | |
1484 | * Default to allowing access in all register modes | |
1485 | * or to the mode specified by the SCB or SRAM space | |
1486 | * we are in. | |
1487 | */ | |
1488 | if (scb_or_sram_symbol != NULL) | |
1489 | symbol->info.rinfo->modes = | |
1490 | scb_or_sram_symbol->info.rinfo->modes; | |
1491 | else | |
1492 | symbol->info.rinfo->modes = ~0; | |
1493 | break; | |
1494 | case ALIAS: | |
1495 | symbol->info.ainfo = | |
1496 | (struct alias_info *)malloc(sizeof(struct alias_info)); | |
1497 | if (symbol->info.ainfo == NULL) { | |
1498 | stop("Can't create alias info", EX_SOFTWARE); | |
1499 | /* NOTREACHED */ | |
1500 | } | |
1501 | memset(symbol->info.ainfo, 0, | |
1502 | sizeof(struct alias_info)); | |
1503 | break; | |
1504 | case MASK: | |
1505 | case FIELD: | |
1506 | case ENUM: | |
1507 | case ENUM_ENTRY: | |
1508 | symbol->info.finfo = | |
1509 | (struct field_info *)malloc(sizeof(struct field_info)); | |
1510 | if (symbol->info.finfo == NULL) { | |
1511 | stop("Can't create field info", EX_SOFTWARE); | |
1512 | /* NOTREACHED */ | |
1513 | } | |
1514 | memset(symbol->info.finfo, 0, sizeof(struct field_info)); | |
1515 | SLIST_INIT(&(symbol->info.finfo->symrefs)); | |
1516 | break; | |
1517 | case CONST: | |
1518 | case DOWNLOAD_CONST: | |
1519 | symbol->info.cinfo = | |
1520 | (struct const_info *)malloc(sizeof(struct const_info)); | |
1521 | if (symbol->info.cinfo == NULL) { | |
1522 | stop("Can't create alias info", EX_SOFTWARE); | |
1523 | /* NOTREACHED */ | |
1524 | } | |
1525 | memset(symbol->info.cinfo, 0, | |
1526 | sizeof(struct const_info)); | |
1527 | break; | |
1528 | case LABEL: | |
1529 | symbol->info.linfo = | |
1530 | (struct label_info *)malloc(sizeof(struct label_info)); | |
1531 | if (symbol->info.linfo == NULL) { | |
1532 | stop("Can't create label info", EX_SOFTWARE); | |
1533 | /* NOTREACHED */ | |
1534 | } | |
1535 | memset(symbol->info.linfo, 0, | |
1536 | sizeof(struct label_info)); | |
1537 | break; | |
1538 | case CONDITIONAL: | |
1539 | symbol->info.condinfo = | |
1540 | (struct cond_info *)malloc(sizeof(struct cond_info)); | |
1541 | if (symbol->info.condinfo == NULL) { | |
1542 | stop("Can't create conditional info", EX_SOFTWARE); | |
1543 | /* NOTREACHED */ | |
1544 | } | |
1545 | memset(symbol->info.condinfo, 0, | |
1546 | sizeof(struct cond_info)); | |
1547 | break; | |
1548 | case MACRO: | |
2b48aed1 | 1549 | symbol->info.macroinfo = |
1da177e4 LT |
1550 | (struct macro_info *)malloc(sizeof(struct macro_info)); |
1551 | if (symbol->info.macroinfo == NULL) { | |
1552 | stop("Can't create macro info", EX_SOFTWARE); | |
1553 | /* NOTREACHED */ | |
1554 | } | |
1555 | memset(symbol->info.macroinfo, 0, | |
1556 | sizeof(struct macro_info)); | |
1557 | STAILQ_INIT(&symbol->info.macroinfo->args); | |
1558 | break; | |
1559 | default: | |
1560 | stop("Call to initialize_symbol with invalid symbol type", | |
1561 | EX_SOFTWARE); | |
1562 | /* NOTREACHED */ | |
1563 | break; | |
1564 | } | |
1565 | } | |
1566 | ||
1567 | static void | |
1568 | add_macro_arg(const char *argtext, int argnum) | |
1569 | { | |
1570 | struct macro_arg *marg; | |
1571 | int i; | |
1572 | int retval; | |
1da177e4 LT |
1573 | |
1574 | if (cur_symbol == NULL || cur_symbol->type != MACRO) { | |
1575 | stop("Invalid current symbol for adding macro arg", | |
1576 | EX_SOFTWARE); | |
1577 | /* NOTREACHED */ | |
1578 | } | |
1579 | ||
1580 | marg = (struct macro_arg *)malloc(sizeof(*marg)); | |
1581 | if (marg == NULL) { | |
1582 | stop("Can't create macro_arg structure", EX_SOFTWARE); | |
1583 | /* NOTREACHED */ | |
1584 | } | |
1585 | marg->replacement_text = NULL; | |
1586 | retval = snprintf(regex_pattern, sizeof(regex_pattern), | |
1587 | "[^-/A-Za-z0-9_](%s)([^-/A-Za-z0-9_]|$)", | |
1588 | argtext); | |
1589 | if (retval >= sizeof(regex_pattern)) { | |
1590 | stop("Regex text buffer too small for arg", | |
1591 | EX_SOFTWARE); | |
1592 | /* NOTREACHED */ | |
1593 | } | |
1594 | retval = regcomp(&marg->arg_regex, regex_pattern, REG_EXTENDED); | |
1595 | if (retval != 0) { | |
1596 | stop("Regex compilation failed", EX_SOFTWARE); | |
1597 | /* NOTREACHED */ | |
1598 | } | |
1599 | STAILQ_INSERT_TAIL(&cur_symbol->info.macroinfo->args, marg, links); | |
1600 | } | |
1601 | ||
1602 | static void | |
1603 | add_macro_body(const char *bodytext) | |
1604 | { | |
1605 | if (cur_symbol == NULL || cur_symbol->type != MACRO) { | |
1606 | stop("Invalid current symbol for adding macro arg", | |
1607 | EX_SOFTWARE); | |
1608 | /* NOTREACHED */ | |
1609 | } | |
1610 | cur_symbol->info.macroinfo->body = strdup(bodytext); | |
1611 | if (cur_symbol->info.macroinfo->body == NULL) { | |
1612 | stop("Can't duplicate macro body text", EX_SOFTWARE); | |
1613 | /* NOTREACHED */ | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | static void | |
1618 | process_register(symbol_t **p_symbol) | |
1619 | { | |
1620 | symbol_t *symbol = *p_symbol; | |
1621 | ||
1622 | if (symbol->type == UNINITIALIZED) { | |
1623 | snprintf(errbuf, sizeof(errbuf), "Undefined register %s", | |
1624 | symbol->name); | |
1625 | stop(errbuf, EX_DATAERR); | |
1626 | /* NOTREACHED */ | |
1627 | } else if (symbol->type == ALIAS) { | |
1628 | *p_symbol = symbol->info.ainfo->parent; | |
1629 | } else if ((symbol->type != REGISTER) | |
1630 | && (symbol->type != SCBLOC) | |
1631 | && (symbol->type != SRAMLOC)) { | |
1632 | snprintf(errbuf, sizeof(errbuf), | |
1633 | "Specified symbol %s is not a register", | |
1634 | symbol->name); | |
1635 | stop(errbuf, EX_DATAERR); | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | static void | |
1640 | format_1_instr(int opcode, symbol_ref_t *dest, expression_t *immed, | |
1641 | symbol_ref_t *src, int ret) | |
1642 | { | |
1643 | struct instruction *instr; | |
1644 | struct ins_format1 *f1_instr; | |
1645 | ||
1646 | if (src->symbol == NULL) | |
1647 | src = dest; | |
1648 | ||
1649 | /* Test register permissions */ | |
1650 | test_writable_symbol(dest->symbol); | |
1651 | test_readable_symbol(src->symbol); | |
1652 | ||
2b48aed1 HR |
1653 | if (!is_location_address(dest->symbol)) { |
1654 | /* Ensure that immediate makes sense for this destination */ | |
1655 | type_check(dest, immed, opcode); | |
1656 | } | |
1da177e4 LT |
1657 | |
1658 | /* Allocate sequencer space for the instruction and fill it out */ | |
1659 | instr = seq_alloc(); | |
1660 | f1_instr = &instr->format.format1; | |
1661 | f1_instr->ret = ret ? 1 : 0; | |
1662 | f1_instr->opcode = opcode; | |
1663 | f1_instr->destination = dest->symbol->info.rinfo->address | |
1664 | + dest->offset; | |
1665 | f1_instr->source = src->symbol->info.rinfo->address | |
1666 | + src->offset; | |
1667 | f1_instr->immediate = immed->value; | |
1668 | ||
1669 | if (is_download_const(immed)) | |
1670 | f1_instr->parity = 1; | |
1671 | else if (dest->symbol == mode_ptr.symbol) { | |
1672 | u_int src_value; | |
1673 | u_int dst_value; | |
1674 | ||
1675 | /* | |
1676 | * Attempt to update mode information if | |
1677 | * we are operating on the mode register. | |
1678 | */ | |
1679 | if (src->symbol == allones.symbol) | |
1680 | src_value = 0xFF; | |
1681 | else if (src->symbol == allzeros.symbol) | |
1682 | src_value = 0; | |
1683 | else if (src->symbol == mode_ptr.symbol) | |
1684 | src_value = (dst_mode << 4) | src_mode; | |
1685 | else | |
1686 | goto cant_update; | |
1687 | ||
1688 | switch (opcode) { | |
1689 | case AIC_OP_AND: | |
1690 | dst_value = src_value & immed->value; | |
1691 | break; | |
1692 | case AIC_OP_XOR: | |
1693 | dst_value = src_value ^ immed->value; | |
1694 | break; | |
1695 | case AIC_OP_ADD: | |
1696 | dst_value = (src_value + immed->value) & 0xFF; | |
1697 | break; | |
1698 | case AIC_OP_OR: | |
1699 | dst_value = src_value | immed->value; | |
1700 | break; | |
1701 | case AIC_OP_BMOV: | |
1702 | dst_value = src_value; | |
1703 | break; | |
1704 | default: | |
1705 | goto cant_update; | |
1706 | } | |
1707 | src_mode = dst_value & 0xF; | |
1708 | dst_mode = (dst_value >> 4) & 0xF; | |
1709 | } | |
1710 | ||
1711 | cant_update: | |
1712 | symlist_free(&immed->referenced_syms); | |
1713 | instruction_ptr++; | |
1714 | } | |
1715 | ||
1716 | static void | |
1717 | format_2_instr(int opcode, symbol_ref_t *dest, expression_t *places, | |
1718 | symbol_ref_t *src, int ret) | |
1719 | { | |
1720 | struct instruction *instr; | |
1721 | struct ins_format2 *f2_instr; | |
1722 | uint8_t shift_control; | |
1723 | ||
1724 | if (src->symbol == NULL) | |
1725 | src = dest; | |
1726 | ||
1727 | /* Test register permissions */ | |
1728 | test_writable_symbol(dest->symbol); | |
1729 | test_readable_symbol(src->symbol); | |
1730 | ||
1731 | /* Allocate sequencer space for the instruction and fill it out */ | |
1732 | instr = seq_alloc(); | |
1733 | f2_instr = &instr->format.format2; | |
1734 | f2_instr->ret = ret ? 1 : 0; | |
1735 | f2_instr->opcode = AIC_OP_ROL; | |
1736 | f2_instr->destination = dest->symbol->info.rinfo->address | |
1737 | + dest->offset; | |
1738 | f2_instr->source = src->symbol->info.rinfo->address | |
1739 | + src->offset; | |
1740 | if (places->value > 8 || places->value <= 0) { | |
1741 | stop("illegal shift value", EX_DATAERR); | |
1742 | /* NOTREACHED */ | |
1743 | } | |
1744 | switch (opcode) { | |
1745 | case AIC_OP_SHL: | |
1746 | if (places->value == 8) | |
1747 | shift_control = 0xf0; | |
1748 | else | |
1749 | shift_control = (places->value << 4) | places->value; | |
1750 | break; | |
1751 | case AIC_OP_SHR: | |
1752 | if (places->value == 8) { | |
1753 | shift_control = 0xf8; | |
1754 | } else { | |
1755 | shift_control = (places->value << 4) | |
1756 | | (8 - places->value) | |
1757 | | 0x08; | |
1758 | } | |
1759 | break; | |
1760 | case AIC_OP_ROL: | |
1761 | shift_control = places->value & 0x7; | |
1762 | break; | |
1763 | case AIC_OP_ROR: | |
1764 | shift_control = (8 - places->value) | 0x08; | |
1765 | break; | |
1766 | default: | |
1767 | shift_control = 0; /* Quiet Compiler */ | |
1768 | stop("Invalid shift operation specified", EX_SOFTWARE); | |
1769 | /* NOTREACHED */ | |
1770 | break; | |
1771 | }; | |
1772 | f2_instr->shift_control = shift_control; | |
1773 | symlist_free(&places->referenced_syms); | |
1774 | instruction_ptr++; | |
1775 | } | |
1776 | ||
1777 | static void | |
1778 | format_3_instr(int opcode, symbol_ref_t *src, | |
1779 | expression_t *immed, symbol_ref_t *address) | |
1780 | { | |
1781 | struct instruction *instr; | |
1782 | struct ins_format3 *f3_instr; | |
1783 | int addr; | |
1784 | ||
1785 | /* Test register permissions */ | |
1786 | test_readable_symbol(src->symbol); | |
1787 | ||
1da177e4 LT |
1788 | /* Allocate sequencer space for the instruction and fill it out */ |
1789 | instr = seq_alloc(); | |
1790 | f3_instr = &instr->format.format3; | |
1791 | if (address->symbol == NULL) { | |
1792 | /* 'dot' referrence. Use the current instruction pointer */ | |
1793 | addr = instruction_ptr + address->offset; | |
1794 | } else if (address->symbol->type == UNINITIALIZED) { | |
1795 | /* forward reference */ | |
1796 | addr = address->offset; | |
1797 | instr->patch_label = address->symbol; | |
1798 | } else | |
1799 | addr = address->symbol->info.linfo->address + address->offset; | |
1800 | f3_instr->opcode = opcode; | |
1801 | f3_instr->address = addr; | |
1802 | f3_instr->source = src->symbol->info.rinfo->address | |
1803 | + src->offset; | |
1804 | f3_instr->immediate = immed->value; | |
1805 | ||
1806 | if (is_download_const(immed)) | |
1807 | f3_instr->parity = 1; | |
1808 | ||
1809 | symlist_free(&immed->referenced_syms); | |
1810 | instruction_ptr++; | |
1811 | } | |
1812 | ||
1813 | static void | |
1814 | test_readable_symbol(symbol_t *symbol) | |
1815 | { | |
1da177e4 LT |
1816 | if ((symbol->info.rinfo->modes & (0x1 << src_mode)) == 0) { |
1817 | snprintf(errbuf, sizeof(errbuf), | |
1818 | "Register %s unavailable in source reg mode %d", | |
1819 | symbol->name, src_mode); | |
1820 | stop(errbuf, EX_DATAERR); | |
1821 | } | |
1822 | ||
1823 | if (symbol->info.rinfo->mode == WO) { | |
1824 | stop("Write Only register specified as source", | |
1825 | EX_DATAERR); | |
1826 | /* NOTREACHED */ | |
1827 | } | |
1828 | } | |
1829 | ||
1830 | static void | |
1831 | test_writable_symbol(symbol_t *symbol) | |
1832 | { | |
1da177e4 LT |
1833 | if ((symbol->info.rinfo->modes & (0x1 << dst_mode)) == 0) { |
1834 | snprintf(errbuf, sizeof(errbuf), | |
1835 | "Register %s unavailable in destination reg mode %d", | |
1836 | symbol->name, dst_mode); | |
1837 | stop(errbuf, EX_DATAERR); | |
1838 | } | |
1839 | ||
1840 | if (symbol->info.rinfo->mode == RO) { | |
1841 | stop("Read Only register specified as destination", | |
1842 | EX_DATAERR); | |
1843 | /* NOTREACHED */ | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | static void | |
2b48aed1 | 1848 | type_check(symbol_ref_t *sym, expression_t *expression, int opcode) |
1da177e4 | 1849 | { |
2b48aed1 | 1850 | symbol_t *symbol = sym->symbol; |
1da177e4 LT |
1851 | symbol_node_t *node; |
1852 | int and_op; | |
2b48aed1 | 1853 | int8_t value, mask; |
1da177e4 LT |
1854 | |
1855 | and_op = FALSE; | |
1da177e4 LT |
1856 | /* |
1857 | * Make sure that we aren't attempting to write something | |
1858 | * that hasn't been defined. If this is an and operation, | |
1859 | * this is a mask, so "undefined" bits are okay. | |
1860 | */ | |
2b48aed1 HR |
1861 | if (opcode == AIC_OP_AND || opcode == AIC_OP_JNZ || |
1862 | opcode == AIC_OP_JZ || opcode == AIC_OP_JNE || | |
1863 | opcode == AIC_OP_BMOV) | |
1864 | and_op = TRUE; | |
1865 | ||
1866 | /* | |
1867 | * Defaulting to 8 bit logic | |
1868 | */ | |
1869 | mask = (int8_t)~symbol->info.rinfo->valid_bitmask; | |
1870 | value = (int8_t)expression->value; | |
1871 | ||
1872 | if (and_op == FALSE && (mask & value) != 0 ) { | |
1da177e4 LT |
1873 | snprintf(errbuf, sizeof(errbuf), |
1874 | "Invalid bit(s) 0x%x in immediate written to %s", | |
2b48aed1 | 1875 | (mask & value), |
1da177e4 LT |
1876 | symbol->name); |
1877 | stop(errbuf, EX_DATAERR); | |
1878 | /* NOTREACHED */ | |
1879 | } | |
1880 | ||
1881 | /* | |
1882 | * Now make sure that all of the symbols referenced by the | |
1883 | * expression are defined for this register. | |
1884 | */ | |
1885 | if (symbol->info.rinfo->typecheck_masks != FALSE) { | |
1886 | for(node = expression->referenced_syms.slh_first; | |
1887 | node != NULL; | |
1888 | node = node->links.sle_next) { | |
1889 | if ((node->symbol->type == MASK | |
1890 | || node->symbol->type == FIELD | |
1891 | || node->symbol->type == ENUM | |
1892 | || node->symbol->type == ENUM_ENTRY) | |
1893 | && symlist_search(&node->symbol->info.finfo->symrefs, | |
1894 | symbol->name) == NULL) { | |
1895 | snprintf(errbuf, sizeof(errbuf), | |
1896 | "Invalid field or mask %s " | |
1897 | "for register %s", | |
1898 | node->symbol->name, symbol->name); | |
1899 | stop(errbuf, EX_DATAERR); | |
1900 | /* NOTREACHED */ | |
1901 | } | |
1902 | } | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | static void | |
1907 | make_expression(expression_t *immed, int value) | |
1908 | { | |
1909 | SLIST_INIT(&immed->referenced_syms); | |
1910 | immed->value = value & 0xff; | |
1911 | } | |
1912 | ||
1913 | static void | |
1914 | add_conditional(symbol_t *symbol) | |
1915 | { | |
1916 | static int numfuncs; | |
1917 | ||
1918 | if (numfuncs == 0) { | |
1919 | /* add a special conditional, "0" */ | |
1920 | symbol_t *false_func; | |
1921 | ||
1922 | false_func = symtable_get("0"); | |
1923 | if (false_func->type != UNINITIALIZED) { | |
1924 | stop("Conditional expression '0' " | |
1925 | "conflicts with a symbol", EX_DATAERR); | |
1926 | /* NOTREACHED */ | |
1927 | } | |
1928 | false_func->type = CONDITIONAL; | |
1929 | initialize_symbol(false_func); | |
1930 | false_func->info.condinfo->func_num = numfuncs++; | |
1931 | symlist_add(&patch_functions, false_func, SYMLIST_INSERT_HEAD); | |
1932 | } | |
1933 | ||
1934 | /* This condition has occurred before */ | |
1935 | if (symbol->type == CONDITIONAL) | |
1936 | return; | |
1937 | ||
1938 | if (symbol->type != UNINITIALIZED) { | |
1939 | stop("Conditional expression conflicts with a symbol", | |
1940 | EX_DATAERR); | |
1941 | /* NOTREACHED */ | |
1942 | } | |
1943 | ||
1944 | symbol->type = CONDITIONAL; | |
1945 | initialize_symbol(symbol); | |
1946 | symbol->info.condinfo->func_num = numfuncs++; | |
1947 | symlist_add(&patch_functions, symbol, SYMLIST_INSERT_HEAD); | |
1948 | } | |
1949 | ||
1950 | static void | |
1951 | add_version(const char *verstring) | |
1952 | { | |
1953 | const char prefix[] = " * "; | |
1954 | int newlen; | |
1955 | int oldlen; | |
1956 | ||
1957 | newlen = strlen(verstring) + strlen(prefix); | |
1958 | oldlen = 0; | |
1959 | if (versions != NULL) | |
1960 | oldlen = strlen(versions); | |
1961 | versions = realloc(versions, newlen + oldlen + 2); | |
1962 | if (versions == NULL) | |
1963 | stop("Can't allocate version string", EX_SOFTWARE); | |
1964 | strcpy(&versions[oldlen], prefix); | |
1965 | strcpy(&versions[oldlen + strlen(prefix)], verstring); | |
1966 | versions[newlen + oldlen] = '\n'; | |
1967 | versions[newlen + oldlen + 1] = '\0'; | |
1968 | } | |
1969 | ||
1970 | void | |
1971 | yyerror(const char *string) | |
1972 | { | |
1973 | stop(string, EX_DATAERR); | |
1974 | } | |
1975 | ||
1976 | static int | |
1977 | is_download_const(expression_t *immed) | |
1978 | { | |
1979 | if ((immed->referenced_syms.slh_first != NULL) | |
1980 | && (immed->referenced_syms.slh_first->symbol->type == DOWNLOAD_CONST)) | |
1981 | return (TRUE); | |
1982 | ||
1983 | return (FALSE); | |
1984 | } | |
2b48aed1 HR |
1985 | |
1986 | static int | |
1987 | is_location_address(symbol_t *sym) | |
1988 | { | |
1989 | if (sym->type == SCBLOC || | |
1990 | sym->type == SRAMLOC) | |
1991 | return (TRUE); | |
1992 | return (FALSE); | |
1993 | } | |
1994 |