]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - sim/igen/igen.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Initial creation of sourceware repository
[thirdparty/binutils-gdb.git] / sim / igen / igen.c
1 /* This file is part of the program psim.
2
3 Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19 */
20
21
22
23 #include <getopt.h>
24
25 #include "misc.h"
26 #include "lf.h"
27 #include "table.h"
28 #include "config.h"
29 #include "filter.h"
30
31 #include "igen.h"
32
33 #include "ld-insn.h"
34 #include "ld-decode.h"
35 #include "ld-cache.h"
36
37 #include "gen.h"
38
39 #include "gen-model.h"
40 #include "gen-icache.h"
41 #include "gen-itable.h"
42 #include "gen-idecode.h"
43 #include "gen-semantics.h"
44 #include "gen-engine.h"
45 #include "gen-support.h"
46 #include "gen-engine.h"
47
48
49 /****************************************************************/
50
51
52 /* Semantic functions */
53
54 int
55 print_semantic_function_formal (lf *file,
56 int nr_prefetched_words)
57 {
58 int nr = 0;
59 int word_nr;
60 if (options.gen.icache || nr_prefetched_words < 0)
61 {
62 nr += lf_printf (file, "SIM_DESC sd,\n");
63 nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
64 options.module.global.prefix.l);
65 nr += lf_printf (file, "%sinstruction_address cia",
66 options.module.global.prefix.l);
67 }
68 else if (options.gen.smp)
69 {
70 nr += lf_printf (file, "sim_cpu *cpu,\n");
71 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
72 {
73 nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
74 options.module.global.prefix.l,
75 word_nr);
76 }
77 nr += lf_printf (file, "%sinstruction_address cia",
78 options.module.global.prefix.l);
79 }
80 else
81 {
82 nr += lf_printf (file, "SIM_DESC sd,\n");
83 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
84 {
85 nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
86 options.module.global.prefix.l,
87 word_nr);
88 }
89 nr += lf_printf (file, "%sinstruction_address cia",
90 options.module.global.prefix.l);
91 }
92 return nr;
93 }
94
95 int
96 print_semantic_function_actual (lf *file,
97 int nr_prefetched_words)
98 {
99 int nr = 0;
100 int word_nr;
101 if (options.gen.icache || nr_prefetched_words < 0)
102 {
103 nr += lf_printf (file, "sd, cache_entry, cia");
104 }
105 else
106 {
107 if (options.gen.smp)
108 nr += lf_printf (file, "cpu");
109 else
110 nr += lf_printf (file, "sd");
111 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
112 nr += lf_printf (file, ", instruction_%d", word_nr);
113 nr += lf_printf (file, ", cia");
114 }
115 return nr;
116 }
117
118 int
119 print_semantic_function_type (lf *file)
120 {
121 int nr = 0;
122 nr += lf_printf (file, "%sinstruction_address",
123 options.module.global.prefix.l);
124 return nr;
125 }
126
127
128 /* Idecode functions */
129
130 int
131 print_icache_function_formal (lf *file,
132 int nr_prefetched_words)
133 {
134 int nr = 0;
135 int word_nr;
136 if (options.gen.smp)
137 nr += lf_printf (file, "sim_cpu *cpu,\n");
138 else
139 nr += lf_printf (file, "SIM_DESC sd,\n");
140 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
141 nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
142 options.module.global.prefix.l, word_nr);
143 nr += lf_printf (file, " %sinstruction_address cia,\n",
144 options.module.global.prefix.l);
145 nr += lf_printf (file, " %sidecode_cache *cache_entry",
146 options.module.global.prefix.l);
147 return nr;
148 }
149
150 int
151 print_icache_function_actual (lf *file,
152 int nr_prefetched_words)
153 {
154 int nr = 0;
155 int word_nr;
156 if (options.gen.smp)
157 nr += lf_printf (file, "cpu");
158 else
159 nr += lf_printf (file, "sd");
160 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
161 nr += lf_printf (file, ", instruction_%d", word_nr);
162 nr += lf_printf (file, ", cia, cache_entry");
163 return nr;
164 }
165
166 int
167 print_icache_function_type (lf *file)
168 {
169 int nr;
170 if (options.gen.semantic_icache)
171 {
172 nr = print_semantic_function_type (file);
173 }
174 else
175 {
176 nr = lf_printf (file, "%sidecode_semantic *",
177 options.module.global.prefix.l);
178 }
179 return nr;
180 }
181
182
183 /* Function names */
184
185 static int
186 print_opcode_bits (lf *file,
187 opcode_bits *bits)
188 {
189 int nr = 0;
190 if (bits == NULL)
191 return nr;
192 nr += lf_putchr (file, '_');
193 nr += lf_putstr (file, bits->field->val_string);
194 if (bits->opcode->is_boolean && bits->value == 0)
195 nr += lf_putint (file, bits->opcode->boolean_constant);
196 else if (!bits->opcode->is_boolean) {
197 if (bits->opcode->last < bits->field->last)
198 nr += lf_putint (file, bits->value << (bits->field->last - bits->opcode->last));
199 else
200 nr += lf_putint (file, bits->value);
201 }
202 nr += print_opcode_bits (file, bits->next);
203 return nr;
204 }
205
206 static int
207 print_c_name (lf *file,
208 const char *name)
209 {
210 int nr = 0;
211 const char *pos;
212 for (pos = name; *pos != '\0'; pos++)
213 {
214 switch (*pos)
215 {
216 case '/':
217 case '-':
218 break;
219 case ' ':
220 case '.':
221 nr += lf_putchr (file, '_');
222 break;
223 default:
224 nr += lf_putchr (file, *pos);
225 break;
226 }
227 }
228 return nr;
229 }
230
231 extern int
232 print_function_name (lf *file,
233 const char *basename,
234 const char *format_name,
235 const char *model_name,
236 opcode_bits *expanded_bits,
237 lf_function_name_prefixes prefix)
238 {
239 int nr = 0;
240 /* the prefix */
241 switch (prefix)
242 {
243 case function_name_prefix_semantics:
244 nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
245 nr += lf_printf (file, "semantic_");
246 break;
247 case function_name_prefix_idecode:
248 nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
249 nr += lf_printf (file, "idecode_");
250 break;
251 case function_name_prefix_itable:
252 nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
253 break;
254 case function_name_prefix_icache:
255 nr += lf_printf (file, "%s", options.module.icache.prefix.l);
256 nr += lf_printf (file, "icache_");
257 break;
258 case function_name_prefix_engine:
259 nr += lf_printf (file, "%s", options.module.engine.prefix.l);
260 nr += lf_printf (file, "engine_");
261 default:
262 break;
263 }
264
265 if (model_name != NULL)
266 {
267 nr += print_c_name (file, model_name);
268 nr += lf_printf (file, "_");
269 }
270
271 /* the function name */
272 nr += print_c_name (file, basename);
273
274 /* the format name if available */
275 if (format_name != NULL)
276 {
277 nr += lf_printf (file, "_");
278 nr += print_c_name (file, format_name);
279 }
280
281 /* the suffix */
282 nr += print_opcode_bits (file, expanded_bits);
283
284 return nr;
285 }
286
287
288 void
289 print_my_defines (lf *file,
290 const char *basename,
291 const char *format_name,
292 opcode_bits *expanded_bits)
293 {
294 /* #define MY_INDEX xxxxx */
295 lf_indent_suppress (file);
296 lf_printf (file, "#undef MY_INDEX\n");
297 lf_indent_suppress (file);
298 lf_printf (file, "#define MY_INDEX ");
299 print_function_name (file,
300 basename, format_name, NULL,
301 NULL,
302 function_name_prefix_itable);
303 lf_printf (file, "\n");
304 /* #define MY_PREFIX xxxxxx */
305 lf_indent_suppress (file);
306 lf_printf (file, "#undef ");
307 print_function_name (file,
308 basename, format_name, NULL,
309 expanded_bits,
310 function_name_prefix_none);
311 lf_printf (file, "\n");
312 lf_indent_suppress (file);
313 lf_printf (file, "#undef MY_PREFIX\n");
314 lf_indent_suppress (file);
315 lf_printf (file, "#define MY_PREFIX ");
316 print_function_name (file,
317 basename, format_name, NULL,
318 expanded_bits,
319 function_name_prefix_none);
320 lf_printf (file, "\n");
321 /* #define MY_NAME xxxxxx */
322 lf_indent_suppress (file);
323 lf_indent_suppress (file);
324 lf_printf (file, "#undef MY_NAME\n");
325 lf_indent_suppress (file);
326 lf_printf (file, "#define MY_NAME \"");
327 print_function_name (file,
328 basename, format_name, NULL,
329 expanded_bits,
330 function_name_prefix_none);
331 lf_printf (file, "\"\n");
332 }
333
334
335 static int
336 print_itrace_prefix (lf *file)
337 {
338 const char *prefix = "trace_prefix (";
339 int indent = strlen (prefix);
340 lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n", prefix);
341 lf_indent (file, +indent);
342 lf_printf (file, "%sitable[MY_INDEX].file, \\\n", options.module.itable.prefix.l);
343 lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n", options.module.itable.prefix.l);
344 lf_printf (file, "\"");
345 return indent;
346 }
347
348
349 static void
350 print_itrace_format (lf *file,
351 insn_mnemonic_entry *assembler)
352 {
353 /* pass=1 is fmt string; pass=2 is arguments */
354 int pass;
355 /* print the format string */
356 for (pass = 1; pass <= 2; pass++)
357 {
358 const char *chp = assembler->format;
359 chp++; /* skip the leading quote */
360 /* write out the format/args */
361 while (*chp != '\0')
362 {
363 if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
364 {
365 if (pass == 1)
366 lf_putchr (file, chp[1]);
367 chp += 2;
368 }
369 else if (chp[0] == '<' || chp[0] == '%')
370 {
371 /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
372 const char *fmt;
373 const char *func;
374 int strlen_func;
375 const char *param;
376 int strlen_param;
377 /* the "%" ... "<" format */
378 fmt = chp;
379 while (chp[0] != '<' && chp[0] != '\0')
380 chp++;
381 if (chp[0] != '<')
382 error (assembler->line, "Missing `<' after `%%'\n");
383 chp++;
384 /* [ "func" # ] OR "param" */
385 func = chp;
386 param = chp;
387 while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
388 chp++;
389 strlen_func = chp - func;
390 if (chp[0] == '#')
391 {
392 chp++;
393 param = chp;
394 while (chp[0] != '>' && chp[0] != '\0')
395 chp++;
396 }
397 strlen_param = chp - param;
398 if (chp[0] != '>')
399 error (assembler->line, "Missing closing `>' in assembler string\n");
400 chp++;
401 /* now process it */
402 if (pass == 2)
403 lf_printf (file, ", \\\n");
404 if (strncmp (fmt, "<", 1) == 0)
405 /* implicit long int format */
406 {
407 if (pass == 1)
408 lf_printf (file, "%%ld");
409 else
410 {
411 lf_printf (file, "(long) ");
412 lf_write (file, param, strlen_param);
413 }
414 }
415 else if (strncmp (fmt, "%<", 2) == 0)
416 /* explicit format */
417 {
418 if (pass == 1)
419 lf_printf (file, "%%");
420 else
421 lf_write (file, param, strlen_param);
422 }
423 else if (strncmp (fmt, "%s<", 3) == 0)
424 /* string format */
425 {
426 if (pass == 1)
427 lf_printf (file, "%%s");
428 else
429 {
430 lf_printf (file, "%sstr_", options.module.global.prefix.l);
431 lf_write (file, func, strlen_func);
432 lf_printf (file, " (SD_, ");
433 lf_write (file, param, strlen_param);
434 lf_printf (file, ")");
435 }
436 }
437 else if (strncmp (fmt, "%lx<", 4) == 0)
438 /* simple hex */
439 {
440 if (pass == 1)
441 lf_printf (file, "%%lx");
442 else
443 {
444 lf_printf (file, "(unsigned long) ");
445 lf_write (file, param, strlen_param);
446 }
447 }
448 else if (strncmp (fmt, "%08lx<", 6) == 0)
449 /* simple hex */
450 {
451 if (pass == 1)
452 lf_printf (file, "%%08lx");
453 else
454 {
455 lf_printf (file, "(unsigned long) ");
456 lf_write (file, param, strlen_param);
457 }
458 }
459 else
460 error (assembler->line, "Unknown assembler string format\n");
461 }
462 else
463 {
464 if (pass == 1)
465 lf_putchr (file, chp[0]);
466 chp += 1;
467 }
468 }
469 }
470 lf_printf (file, ");\n");
471 }
472
473
474 void
475 print_itrace (lf *file,
476 insn_entry *insn,
477 int idecode)
478 {
479 /* NB: Here we escape each EOLN. This is so that the the compiler
480 treats a trace function call as a single line. Consequently any
481 errors in the line are refered back to the same igen assembler
482 source line */
483 const char *phase = (idecode) ? "DECODE" : "INSN";
484 lf_printf (file, "\n");
485 lf_indent_suppress (file);
486 lf_printf (file, "#if defined (WITH_TRACE)\n");
487 lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
488 lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
489 lf_printf (file, " {\n");
490 lf_indent (file, +4);
491 {
492 if (insn->mnemonics != NULL)
493 {
494 insn_mnemonic_entry *assembler = insn->mnemonics;
495 int is_first = 1;
496 do
497 {
498 if (assembler->condition != NULL)
499 {
500 int indent;
501 lf_printf (file, "%sif (%s)\n",
502 is_first ? "" : "else ",
503 assembler->condition);
504 lf_indent (file, +2);
505 lf_print__line_ref (file, assembler->line);
506 indent = print_itrace_prefix (file);
507 print_itrace_format (file, assembler);
508 lf_print__internal_ref (file);
509 lf_indent (file, -indent);
510 lf_indent (file, -2);
511 if (assembler->next == NULL)
512 error (assembler->line, "Missing final unconditional assembler\n");
513 }
514 else
515 {
516 int indent;
517 if (!is_first)
518 {
519 lf_printf (file, "else\n");
520 lf_indent (file, +2);
521 }
522 lf_print__line_ref (file, assembler->line);
523 indent = print_itrace_prefix (file);
524 print_itrace_format (file, assembler);
525 lf_print__internal_ref (file);
526 lf_indent (file, -indent);
527 if (!is_first)
528 lf_indent (file, -2);
529 if (assembler->next != NULL)
530 error (assembler->line, "Unconditional assembler is not last\n");
531 }
532 is_first = 0;
533 assembler = assembler->next;
534 }
535 while (assembler != NULL);
536 }
537 else
538 {
539 int indent;
540 lf_indent (file, +2);
541 lf_print__line_ref (file, insn->line);
542 indent = print_itrace_prefix (file);
543 lf_printf (file, "%%s\", \\\n");
544 lf_printf (file, "itable[MY_INDEX].name);\n");
545 lf_print__internal_ref (file);
546 lf_indent (file, -indent);
547 lf_indent (file, -2);
548 }
549 lf_printf (file, "/* trace the instruction execution if enabled */\n");
550 lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
551 lf_printf (file, " trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n", phase);
552 }
553 lf_indent (file, -4);
554 lf_printf (file, " }\n");
555 lf_indent_suppress (file);
556 lf_printf (file, "#endif\n");
557 }
558
559
560 void
561 print_sim_engine_abort (lf *file,
562 const char *message)
563 {
564 lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
565 lf_printf (file, "\"%s\"", message);
566 lf_printf (file, ");\n");
567 }
568
569
570 void
571 print_include (lf *file,
572 igen_module module)
573 {
574 lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
575 }
576
577 void
578 print_include_inline (lf *file,
579 igen_module module)
580 {
581 lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
582 lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
583 lf_printf (file, "#else\n");
584 print_include (file, module);
585 lf_printf (file, "#endif\n");
586 lf_printf (file, "\n");
587 }
588
589 void
590 print_includes (lf *file)
591 {
592 lf_printf (file, "\n");
593 lf_printf (file, "#include \"sim-inline.c\"\n");
594 lf_printf (file, "\n");
595 print_include_inline (file, options.module.itable);
596 print_include_inline (file, options.module.idecode);
597 print_include_inline (file, options.module.support);
598 }
599
600
601 /****************************************************************/
602
603
604 static void
605 gen_semantics_h (lf *file,
606 insn_list *semantics,
607 int max_nr_words)
608 {
609 int word_nr;
610 insn_list *semantic;
611 for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
612 {
613 lf_printf (file, "typedef ");
614 print_semantic_function_type (file);
615 lf_printf (file, " %sidecode_semantic",
616 options.module.global.prefix.l);
617 if (word_nr >= 0)
618 lf_printf (file, "_%d", word_nr);
619 lf_printf (file, "\n(");
620 lf_indent (file, +1);
621 print_semantic_function_formal (file, word_nr);
622 lf_indent (file, -1);
623 lf_printf (file, ");\n");
624 lf_printf (file, "\n");
625 }
626 switch (options.gen.code)
627 {
628 case generate_calls:
629 for (semantic = semantics; semantic != NULL; semantic = semantic->next)
630 {
631 /* Ignore any special/internal instructions */
632 if (semantic->insn->nr_words == 0)
633 continue;
634 print_semantic_declaration (file,
635 semantic->insn,
636 semantic->expanded_bits,
637 semantic->opcodes,
638 semantic->nr_prefetched_words);
639 }
640 break;
641 case generate_jumps:
642 lf_print__this_file_is_empty (file, "generating jumps");
643 break;
644 }
645 }
646
647
648 static void
649 gen_semantics_c (lf *file,
650 insn_list *semantics,
651 cache_entry *cache_rules)
652 {
653 if (options.gen.code == generate_calls)
654 {
655 insn_list *semantic;
656 print_includes (file);
657 print_include (file, options.module.semantics);
658 lf_printf (file, "\n");
659
660 for (semantic = semantics; semantic != NULL; semantic = semantic->next)
661 {
662 /* Ignore any special/internal instructions */
663 if (semantic->insn->nr_words == 0)
664 continue;
665 print_semantic_definition (file,
666 semantic->insn,
667 semantic->expanded_bits,
668 semantic->opcodes,
669 cache_rules,
670 semantic->nr_prefetched_words);
671 }
672 }
673 else
674 {
675 lf_print__this_file_is_empty (file, "generating jump engine");
676 }
677 }
678
679
680 /****************************************************************/
681
682
683 static void
684 gen_icache_h (lf *file,
685 insn_list *semantic,
686 function_entry *functions,
687 int max_nr_words)
688 {
689 int word_nr;
690 for (word_nr = 0; word_nr <= max_nr_words; word_nr++)
691 {
692 lf_printf (file, "typedef ");
693 print_icache_function_type(file);
694 lf_printf (file, " %sidecode_icache_%d\n(",
695 options.module.global.prefix.l,
696 word_nr);
697 print_icache_function_formal(file, word_nr);
698 lf_printf (file, ");\n");
699 lf_printf (file, "\n");
700 }
701 if (options.gen.code == generate_calls
702 && options.gen.icache)
703 {
704 function_entry_traverse (file, functions,
705 print_icache_internal_function_declaration,
706 NULL);
707 while (semantic != NULL)
708 {
709 print_icache_declaration (file,
710 semantic->insn,
711 semantic->expanded_bits,
712 semantic->opcodes,
713 semantic->nr_prefetched_words);
714 semantic = semantic->next;
715 }
716 }
717 else
718 {
719 lf_print__this_file_is_empty (file, "generating jump engine");
720 }
721 }
722
723 static void
724 gen_icache_c (lf *file,
725 insn_list *semantic,
726 function_entry *functions,
727 cache_entry *cache_rules)
728 {
729 /* output `internal' invalid/floating-point unavailable functions
730 where needed */
731 if (options.gen.code == generate_calls
732 && options.gen.icache)
733 {
734 lf_printf (file, "\n");
735 lf_printf (file, "#include \"cpu.h\"\n");
736 lf_printf (file, "#include \"idecode.h\"\n");
737 lf_printf (file, "#include \"semantics.h\"\n");
738 lf_printf (file, "#include \"icache.h\"\n");
739 lf_printf (file, "#include \"support.h\"\n");
740 lf_printf (file, "\n");
741 function_entry_traverse (file, functions,
742 print_icache_internal_function_definition,
743 NULL);
744 lf_printf (file, "\n");
745 while (semantic != NULL)
746 {
747 print_icache_definition (file,
748 semantic->insn,
749 semantic->expanded_bits,
750 semantic->opcodes,
751 cache_rules,
752 semantic->nr_prefetched_words);
753 semantic = semantic->next;
754 }
755 }
756 else
757 {
758 lf_print__this_file_is_empty (file, "generating jump engine");
759 }
760 }
761
762
763 /****************************************************************/
764
765
766 static void
767 gen_idecode_h (lf *file,
768 gen_table *gen,
769 insn_table *insns,
770 cache_entry *cache_rules)
771 {
772 lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
773 options.insn_bit_size, options.module.global.prefix.l);
774 if (options.gen.delayed_branch)
775 {
776 lf_printf (file, "typedef struct _%sinstruction_address {\n",
777 options.module.global.prefix.l);
778 lf_printf (file, " address_word ip; /* instruction pointer */\n");
779 lf_printf (file, " address_word dp; /* delayed-slot pointer */\n");
780 lf_printf (file, "} %sinstruction_address;\n", options.module.global.prefix.l);
781 }
782 else
783 {
784 lf_printf (file, "typedef address_word %sinstruction_address;\n",
785 options.module.global.prefix.l);
786
787 }
788 if (options.gen.nia == nia_is_invalid
789 && strlen (options.module.global.prefix.u) > 0)
790 {
791 lf_indent_suppress (file);
792 lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
793 options.module.global.prefix.u);
794 lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
795 }
796 lf_printf (file, "\n");
797 print_icache_struct (file, insns, cache_rules);
798 lf_printf (file, "\n");
799 if (options.gen.icache)
800 {
801 ERROR ("FIXME - idecode with icache suffering from bit-rot");
802 }
803 else
804 {
805 gen_list *entry;
806 for (entry = gen->tables; entry != NULL; entry = entry->next)
807 {
808 print_idecode_issue_function_header (file,
809 (options.gen.multi_sim
810 ? entry->model->name
811 : NULL),
812 is_function_declaration,
813 1/*ALWAYS ONE WORD*/);
814 }
815 if (options.gen.multi_sim)
816 {
817 print_idecode_issue_function_header (file,
818 NULL,
819 is_function_variable,
820 1/*ALWAYS ONE WORD*/);
821 }
822 }
823 }
824
825
826 static void
827 gen_idecode_c (lf *file,
828 gen_table *gen,
829 insn_table *isa,
830 cache_entry *cache_rules)
831 {
832 /* the intro */
833 print_includes (file);
834 print_include_inline (file, options.module.semantics);
835 lf_printf (file, "\n");
836
837 print_idecode_globals (file);
838 lf_printf (file, "\n");
839
840 switch (options.gen.code)
841 {
842 case generate_calls:
843 {
844 gen_list *entry;
845 for (entry = gen->tables; entry != NULL; entry = entry->next)
846 {
847 print_idecode_lookups (file, entry->table, cache_rules);
848
849 /* output the main idecode routine */
850 if (!options.gen.icache)
851 {
852 print_idecode_issue_function_header (file,
853 (options.gen.multi_sim
854 ? entry->model->name
855 : NULL),
856 1/*is definition*/,
857 1/*ALWAYS ONE WORD*/);
858 lf_printf (file, "{\n");
859 lf_indent (file, +2);
860 lf_printf (file, "%sinstruction_address nia;\n",
861 options.module.global.prefix.l);
862 print_idecode_body (file, entry->table, "nia =");
863 lf_printf (file, "return nia;");
864 lf_indent (file, -2);
865 lf_printf (file, "}\n");
866 }
867 }
868 break;
869 }
870 case generate_jumps:
871 {
872 lf_print__this_file_is_empty (file, "generating a jump engine");
873 break;
874 }
875 }
876 }
877
878
879 /****************************************************************/
880
881
882 static void
883 gen_run_c (lf *file,
884 gen_table *gen)
885 {
886 gen_list *entry;
887 lf_printf (file, "#include \"sim-main.h\"\n");
888 lf_printf (file, "#include \"engine.h\"\n");
889 lf_printf (file, "#include \"idecode.h\"\n");
890 lf_printf (file, "#include \"bfd.h\"\n");
891 lf_printf (file, "\n");
892
893 if (options.gen.multi_sim)
894 {
895 print_idecode_issue_function_header (file, NULL, is_function_variable, 1);
896 lf_printf (file, "\n");
897 print_engine_run_function_header (file, NULL, is_function_variable);
898 lf_printf (file, "\n");
899 }
900
901 lf_printf (file, "void\n");
902 lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
903 lf_printf (file, " int next_cpu_nr,\n");
904 lf_printf (file, " int nr_cpus,\n");
905 lf_printf (file, " int siggnal)\n");
906 lf_printf (file, "{\n");
907 lf_indent (file, +2);
908 if (options.gen.multi_sim)
909 {
910 lf_printf (file, "int mach;\n");
911 lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
912 lf_printf (file, " mach = 0;\n");
913 lf_printf (file, "else\n");
914 lf_printf (file, " mach = STATE_ARCHITECTURE (sd)->mach;\n");
915 lf_printf (file, "switch (mach)\n");
916 lf_printf (file, " {\n");
917 lf_indent (file, +2);
918 for (entry = gen->tables; entry != NULL; entry = entry->next)
919 {
920 if (options.gen.default_model != NULL
921 && (strcmp (entry->model->name, options.gen.default_model) == 0
922 || strcmp (entry->model->full_name, options.gen.default_model) == 0))
923 lf_printf (file, "default:\n");
924 lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
925 lf_indent (file, +2);
926 print_function_name (file,
927 "issue",
928 NULL, /* format name */
929 NULL, /* NO processor */
930 NULL, /* expanded bits */
931 function_name_prefix_idecode);
932 lf_printf (file, " = ");
933 print_function_name (file,
934 "issue",
935 NULL, /* format name */
936 entry->model->name,
937 NULL, /* expanded bits */
938 function_name_prefix_idecode);
939 lf_printf (file, ";\n");
940 print_function_name (file,
941 "run",
942 NULL, /* format name */
943 NULL, /* NO processor */
944 NULL, /* expanded bits */
945 function_name_prefix_engine);
946 lf_printf (file, " = ");
947 print_function_name (file,
948 "run",
949 NULL, /* format name */
950 entry->model->name,
951 NULL, /* expanded bits */
952 function_name_prefix_engine);
953 lf_printf (file, ";\n");
954 lf_printf (file, "break;\n");
955 lf_indent (file, -2);
956 }
957 if (options.gen.default_model == NULL)
958 {
959 lf_printf (file, "default:\n");
960 lf_indent (file, +2);
961 lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
962 lf_printf (file, " \"sim_engine_run - unknown machine\");\n");
963 lf_printf (file, "break;\n");
964 lf_indent (file, -2);
965 }
966 lf_indent (file, -2);
967 lf_printf (file, " }\n");
968 }
969 print_function_name (file,
970 "run",
971 NULL, /* format name */
972 NULL, /* NO processor */
973 NULL, /* expanded bits */
974 function_name_prefix_engine);
975 lf_printf (file, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
976 lf_indent (file, -2);
977 lf_printf (file, "}\n");
978 }
979
980 /****************************************************************/
981
982 static gen_table *
983 do_gen (insn_table *isa,
984 decode_table *decode_rules)
985 {
986 gen_table *gen;
987 if (decode_rules == NULL)
988 error (NULL, "Must specify a decode table\n");
989 if (isa == NULL)
990 error (NULL, "Must specify an instruction table\n");
991 if (decode_table_max_word_nr (decode_rules) > 0)
992 options.gen.multi_word = decode_table_max_word_nr (decode_rules);
993 gen = make_gen_tables (isa, decode_rules);
994 gen_tables_expand_insns (gen);
995 gen_tables_expand_semantics (gen);
996 return gen;
997 }
998
999 /****************************************************************/
1000
1001 igen_options options;
1002
1003 int
1004 main (int argc,
1005 char **argv,
1006 char **envp)
1007 {
1008 cache_entry *cache_rules = NULL;
1009 lf_file_references file_references = lf_include_references;
1010 decode_table *decode_rules = NULL;
1011 insn_table *isa = NULL;
1012 gen_table *gen = NULL;
1013 char *real_file_name = NULL;
1014 int is_header = 0;
1015 int ch;
1016 lf *standard_out = lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
1017
1018 INIT_OPTIONS ();
1019
1020 if (argc == 1)
1021 {
1022 printf ("Usage:\n");
1023 printf ("\n");
1024 printf (" igen <config-opts> ... <input-opts>... <output-opts>...\n");
1025 printf ("\n");
1026 printf ("Config options:\n");
1027 printf ("\n");
1028 printf (" -B <bit-size>\n");
1029 printf ("\t Set the number of bits in an instruction (depreciated).\n");
1030 printf ("\t This option can now be set directly in the instruction table.\n");
1031 printf ("\n");
1032 printf (" -D <data-structure>\n");
1033 printf ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1034 printf ("\t processor-names - list the names of all the processors (models)\n");
1035 printf ("\n");
1036 printf (" -F <filter-list>\n");
1037 printf ("\t Filter out any instructions with a non-empty flags field that contains\n");
1038 printf ("\t a flag not listed in the <filter-list>.\n");
1039 printf ("\n");
1040 printf (" -H <high-bit>\n");
1041 printf ("\t Set the number of the high (most significant) instruction bit (depreciated).\n");
1042 printf ("\t This option can now be set directly in the instruction table.\n");
1043 printf ("\n");
1044 printf (" -I <directory>\n");
1045 printf ("\t Add <directory> to the list of directories searched when opening a file\n");
1046 printf ("\n");
1047 printf (" -M <model-list>\n");
1048 printf ("\t Filter out any instructions that do not support at least one of the listed\n");
1049 printf ("\t models (An instructions with no model information is considered to support\n");
1050 printf ("\t all models.).\n");
1051 printf ("\n");
1052 printf (" -N <nr-cpus>\n");
1053 printf ("\t Generate a simulator supporting <nr-cpus>\n");
1054 printf ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1055 printf ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1056 printf ("\n");
1057 printf (" -T <mechanism>\n");
1058 printf ("\t Override the decode mechanism specified by the decode rules\n");
1059 printf ("\n");
1060 printf (" -P <prefix>\n");
1061 printf ("\t Prepend global names (except itable) with the string <prefix>.\n");
1062 printf ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1063 printf ("\n");
1064 printf (" -S <suffix>\n");
1065 printf ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1066 printf ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1067 printf ("\n");
1068 printf (" -Werror\n");
1069 printf ("\t Make warnings errors\n");
1070 printf (" -Wnodiscard\n");
1071 printf ("\t Suppress warnings about discarded functions and instructions\n");
1072 printf (" -Wnowidth\n");
1073 printf ("\t Suppress warnings about instructions with invalid widths\n");
1074 printf (" -Wnounimplemented\n");
1075 printf ("\t Suppress warnings about unimplemented instructions\n");
1076 printf ("\n");
1077 printf (" -G [!]<gen-option>\n");
1078 printf ("\t Any of the following options:\n");
1079 printf ("\n");
1080 printf ("\t decode-duplicate - Override the decode rules, forcing the duplication of\n");
1081 printf ("\t semantic functions\n");
1082 printf ("\t decode-combine - Combine any duplicated entries within a table\n");
1083 printf ("\t decode-zero-reserved - Override the decode rules, forcing reserved bits to be\n");
1084 printf ("\t treated as zero.\n");
1085 printf ("\t decode-switch-is-goto - Overfide the padded-switch code type as a goto-switch\n");
1086 printf ("\n");
1087 printf ("\t gen-conditional-issue - conditionally issue each instruction\n");
1088 printf ("\t gen-delayed-branch - need both cia and nia passed around\n");
1089 printf ("\t gen-direct-access - use #defines to directly access values\n");
1090 printf ("\t gen-zero-r<N> - arch assumes GPR(<N>) == 0, keep it that way\n");
1091 printf ("\t gen-icache[=<N> - generate an instruction cracking cache of size <N>\n");
1092 printf ("\t Default size is %d\n", options.gen.icache_size);
1093 printf ("\t gen-insn-in-icache - save original instruction when cracking\n");
1094 printf ("\t gen-multi-sim[=MODEL] - generate multiple simulators - one per model\n");
1095 printf ("\t If specified MODEL is made the default architecture.\n");
1096 printf ("\t By default, a single simulator that will\n");
1097 printf ("\t execute any instruction is generated\n");
1098 printf ("\t gen-multi-word - generate code allowing for multi-word insns\n");
1099 printf ("\t gen-semantic-icache - include semantic code in cracking functions\n");
1100 printf ("\t gen-slot-verification - perform slot verification as part of decode\n");
1101 printf ("\t gen-nia-invalid - NIA defaults to nia_invalid\n");
1102 printf ("\t gen-nia-void - do not compute/return NIA\n");
1103 printf ("\n");
1104 printf ("\t trace-combine - report combined entries a rule application\n");
1105 printf ("\t trace-entries - report entries after a rules application\n");
1106 printf ("\t trace-rule-rejection - report each rule as rejected\n");
1107 printf ("\t trace-rule-selection - report each rule as selected\n");
1108 printf ("\t trace-insn-insertion - report each instruction as it is inserted into a decode table\n");
1109 printf ("\t trace-rule-expansion - report each instruction as it is expanded (before insertion into a decode table)\n");
1110 printf ("\t trace-all - enable all trace options\n");
1111 printf ("\n");
1112 printf ("\t field-widths - instruction formats specify widths (depreciated)\n");
1113 printf ("\t By default, an instruction format specifies bit\n");
1114 printf ("\t positions\n");
1115 printf ("\t This option can now be set directly in the\n");
1116 printf ("\t instruction table\n");
1117 printf ("\t jumps - use jumps instead of function calls\n");
1118 printf ("\t omit-line-numbers - do not include line number information in the output\n");
1119 printf ("\n");
1120 printf ("Input options:\n");
1121 printf ("\n");
1122 printf (" -k <cache-rules> (depreciated)\n");
1123 printf (" -o <decode-rules>\n");
1124 printf (" -i <instruction-table>\n");
1125 printf ("\n");
1126 printf ("Output options:\n");
1127 printf ("\n");
1128 printf (" -x Perform expansion (required)\n");
1129 printf (" -n <real-name> Specify the real name of the next output file\n");
1130 printf (" -h Generate the header (.h) file rather than the body (.c)\n");
1131 printf (" -c <output-file> output icache\n");
1132 printf (" -d <output-file> output idecode\n");
1133 printf (" -e <output-file> output engine\n");
1134 printf (" -f <output-file> output support functions\n");
1135 printf (" -m <output-file> output model\n");
1136 printf (" -r <output-file> output multi-sim run\n");
1137 printf (" -s <output-file> output schematic\n");
1138 printf (" -t <output-file> output itable\n");
1139 }
1140
1141 while ((ch = getopt(argc, argv,
1142 "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1143 != -1)
1144 {
1145 fprintf (stderr, " -%c ", ch);
1146 if (optarg)
1147 fprintf (stderr, "%s ", optarg);
1148 fprintf (stderr, "\\\n");
1149
1150 switch(ch)
1151 {
1152
1153 case 'M':
1154 filter_parse (&options.model_filter, optarg);
1155 break;
1156
1157 case 'D':
1158 if (strcmp (optarg, "processor-names"))
1159 {
1160 char *processor;
1161 for (processor = filter_next (options.model_filter, "");
1162 processor != NULL;
1163 processor = filter_next (options.model_filter, processor))
1164 lf_printf (standard_out, "%s\n", processor);
1165 }
1166 else
1167 error (NULL, "Unknown data structure %s, not dumped\n", optarg);
1168 break;
1169
1170 case 'F':
1171 filter_parse (&options.flags_filter, optarg);
1172 break;
1173
1174 case 'I':
1175 {
1176 table_include **dir = &options.include;
1177 while ((*dir) != NULL)
1178 dir = &(*dir)->next;
1179 (*dir) = ZALLOC (table_include);
1180 (*dir)->dir = strdup (optarg);
1181 }
1182 break;
1183
1184 case 'B':
1185 options.insn_bit_size = a2i (optarg);
1186 if (options.insn_bit_size <= 0
1187 || options.insn_bit_size > max_insn_bit_size)
1188 {
1189 error (NULL, "Instruction bitsize must be in range 1..%d\n",
1190 max_insn_bit_size);
1191 }
1192 if (options.hi_bit_nr != options.insn_bit_size - 1
1193 && options.hi_bit_nr != 0)
1194 {
1195 error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1196 }
1197 break;
1198
1199 case 'H':
1200 options.hi_bit_nr = a2i (optarg);
1201 if (options.hi_bit_nr != options.insn_bit_size - 1
1202 && options.hi_bit_nr != 0)
1203 {
1204 error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
1205 }
1206 break;
1207
1208 case 'N':
1209 options.gen.smp = a2i (optarg);
1210 break;
1211
1212 case 'P':
1213 case 'S':
1214 {
1215 igen_module *names;
1216 igen_name *name;
1217 char *chp;
1218 chp = strchr (optarg, '=');
1219 if (chp == NULL)
1220 {
1221 names = &options.module.global;
1222 chp = optarg;
1223 }
1224 else
1225 {
1226 chp = chp + 1; /* skip `=' */
1227 names = NULL;
1228 if (strncmp (optarg, "global=", chp - optarg) == 0)
1229 {
1230 names = &options.module.global;
1231 }
1232 if (strncmp (optarg, "engine=", chp - optarg) == 0)
1233 {
1234 names = &options.module.engine;
1235 }
1236 if (strncmp (optarg, "icache=", chp - optarg) == 0)
1237 {
1238 names = &options.module.icache;
1239 }
1240 if (strncmp (optarg, "idecode=", chp - optarg) == 0)
1241 {
1242 names = &options.module.idecode;
1243 }
1244 if (strncmp (optarg, "itable=", chp - optarg) == 0)
1245 {
1246 names = &options.module.itable;
1247 }
1248 if (strncmp (optarg, "semantics=", chp - optarg) == 0)
1249 {
1250 names = &options.module.semantics;
1251 }
1252 if (strncmp (optarg, "support=", chp - optarg) == 0)
1253 {
1254 names = &options.module.support;
1255 }
1256 if (names == NULL)
1257 {
1258 error (NULL, "Prefix `%s' unreconized\n", optarg);
1259 }
1260 }
1261 switch (ch)
1262 {
1263 case 'P':
1264 name = &names->prefix;
1265 break;
1266 case 'S':
1267 name = &names->suffix;
1268 break;
1269 }
1270 name->u = strdup (chp);
1271 name->l = strdup (chp);
1272 chp = name->u;
1273 while (*chp) {
1274 if (islower(*chp))
1275 *chp = toupper(*chp);
1276 chp++;
1277 }
1278 if (name == &options.module.global.prefix)
1279 {
1280 options.module.engine.prefix = options.module.global.prefix;
1281 options.module.icache.prefix = options.module.global.prefix;
1282 options.module.idecode.prefix = options.module.global.prefix;
1283 /* options.module.itable.prefix = options.module.global.prefix; */
1284 options.module.semantics.prefix = options.module.global.prefix;
1285 options.module.support.prefix = options.module.global.prefix;
1286 }
1287 if (name == &options.module.global.suffix)
1288 {
1289 options.module.engine.suffix = options.module.global.suffix;
1290 options.module.icache.suffix = options.module.global.suffix;
1291 options.module.idecode.suffix = options.module.global.suffix;
1292 /* options.module.itable.suffix = options.module.global.suffix; */
1293 options.module.semantics.suffix = options.module.global.suffix;
1294 options.module.support.suffix = options.module.global.suffix;
1295 }
1296 break;
1297 }
1298
1299 case 'W':
1300 {
1301 if (strcmp (optarg, "error") == 0)
1302 options.warning = error;
1303 else if (strcmp (optarg, "nodiscard") == 0)
1304 options.warn.discard = 0;
1305 else if (strcmp (optarg, "discard") == 0)
1306 options.warn.discard = 1;
1307 else if (strcmp (optarg, "nowidth") == 0)
1308 options.warn.width = 0;
1309 else if (strcmp (optarg, "width") == 0)
1310 options.warn.width = 1;
1311 else if (strcmp (optarg, "nounimplemented") == 0)
1312 options.warn.unimplemented = 0;
1313 else if (strcmp (optarg, "unimplemented") == 0)
1314 options.warn.unimplemented = 1;
1315 else
1316 error (NULL, "Unknown -W argument `%s'\n", optarg);
1317 break;
1318 }
1319
1320
1321 case 'G':
1322 {
1323 int enable_p;
1324 char *argp;
1325 if (strncmp (optarg, "no-", strlen ("no-")) == 0)
1326 {
1327 argp = optarg + strlen ("no-");
1328 enable_p = 0;
1329 }
1330 else if (strncmp (optarg, "!", strlen ("!")) == 0)
1331 {
1332 argp = optarg + strlen ("no-");
1333 enable_p = 0;
1334 }
1335 else
1336 {
1337 argp = optarg;
1338 enable_p = 1;
1339 }
1340 if (strcmp (argp, "decode-duplicate") == 0)
1341 {
1342 options.decode.duplicate = enable_p;
1343 }
1344 else if (strcmp (argp, "decode-combine") == 0)
1345 {
1346 options.decode.combine = enable_p;
1347 }
1348 else if (strcmp (argp, "decode-zero-reserved") == 0)
1349 {
1350 options.decode.zero_reserved = enable_p;
1351 }
1352
1353 else if (strcmp (argp, "gen-conditional-issue") == 0)
1354 {
1355 options.gen.conditional_issue = enable_p;
1356 }
1357 else if (strcmp (argp, "conditional-issue") == 0)
1358 {
1359 options.gen.conditional_issue = enable_p;
1360 options.warning (NULL, "Option conditional-issue replaced by gen-conditional-issue\n");
1361 }
1362 else if (strcmp (argp, "gen-delayed-branch") == 0)
1363 {
1364 options.gen.delayed_branch = enable_p;
1365 }
1366 else if (strcmp (argp, "delayed-branch") == 0)
1367 {
1368 options.gen.delayed_branch = enable_p;
1369 options.warning (NULL, "Option delayed-branch replaced by gen-delayed-branch\n");
1370 }
1371 else if (strcmp (argp, "gen-direct-access") == 0)
1372 {
1373 options.gen.direct_access = enable_p;
1374 }
1375 else if (strcmp (argp, "direct-access") == 0)
1376 {
1377 options.gen.direct_access = enable_p;
1378 options.warning (NULL, "Option direct-access replaced by gen-direct-access\n");
1379 }
1380 else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1381 {
1382 options.gen.zero_reg = enable_p;
1383 options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
1384 }
1385 else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
1386 {
1387 options.gen.zero_reg = enable_p;
1388 options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
1389 options.warning (NULL, "Option zero-r<N> replaced by gen-zero-r<N>\n");
1390 }
1391 else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
1392 {
1393 switch (argp[strlen ("gen-icache")])
1394 {
1395 case '=':
1396 options.gen.icache_size = atoi (argp + strlen ("gen-icache") + 1);
1397 options.gen.icache = enable_p;
1398 break;
1399 case '\0':
1400 options.gen.icache = enable_p;
1401 break;
1402 default:
1403 error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1404 }
1405 }
1406 else if (strcmp (argp, "gen-insn-in-icache") == 0)
1407 {
1408 options.gen.insn_in_icache = enable_p;
1409 }
1410 else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim")) == 0)
1411 {
1412 char *arg = &argp[strlen ("gen-multi-sim")];
1413 switch (arg[0])
1414 {
1415 case '=':
1416 options.gen.multi_sim = enable_p;
1417 options.gen.default_model = arg + 1;
1418 if (! filter_is_member (options.model_filter, options.gen.default_model))
1419 error (NULL, "multi-sim model %s unknown\n", options.gen.default_model);
1420 break;
1421 case '\0':
1422 options.gen.multi_sim = enable_p;
1423 options.gen.default_model = NULL;
1424 break;
1425 default:
1426 error (NULL, "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1427 break;
1428 }
1429 }
1430 else if (strcmp (argp, "gen-multi-word") == 0)
1431 {
1432 options.gen.multi_word = enable_p;
1433 }
1434 else if (strcmp (argp, "gen-semantic-icache") == 0)
1435 {
1436 options.gen.semantic_icache = enable_p;
1437 }
1438 else if (strcmp (argp, "gen-slot-verification") == 0)
1439 {
1440 options.gen.slot_verification = enable_p;
1441 }
1442 else if (strcmp (argp, "verify-slot") == 0)
1443 {
1444 options.gen.slot_verification = enable_p;
1445 options.warning (NULL, "Option verify-slot replaced by gen-slot-verification\n");
1446 }
1447 else if (strcmp (argp, "gen-nia-invalid") == 0)
1448 {
1449 options.gen.nia = nia_is_invalid;
1450 }
1451 else if (strcmp (argp, "default-nia-minus-one") == 0)
1452 {
1453 options.gen.nia = nia_is_invalid;
1454 options.warning (NULL, "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1455 }
1456 else if (strcmp (argp, "gen-nia-void") == 0)
1457 {
1458 options.gen.nia = nia_is_void;
1459 }
1460 else if (strcmp (argp, "trace-all") == 0)
1461 {
1462 memset (&options.trace, enable_p, sizeof (options.trace));
1463 }
1464 else if (strcmp (argp, "trace-combine") == 0)
1465 {
1466 options.trace.combine = enable_p;
1467 }
1468 else if (strcmp (argp, "trace-entries") == 0)
1469 {
1470 options.trace.entries = enable_p;
1471 }
1472 else if (strcmp (argp, "trace-rule-rejection") == 0)
1473 {
1474 options.trace.rule_rejection = enable_p;
1475 }
1476 else if (strcmp (argp, "trace-rule-selection") == 0)
1477 {
1478 options.trace.rule_selection = enable_p;
1479 }
1480 else if (strcmp (argp, "trace-insn-insertion") == 0)
1481 {
1482 options.trace.insn_insertion = enable_p;
1483 }
1484 else if (strcmp (argp, "trace-insn-expansion") == 0)
1485 {
1486 options.trace.insn_expansion = enable_p;
1487 }
1488 else if (strcmp (argp, "jumps") == 0)
1489 {
1490 options.gen.code = generate_jumps;
1491 }
1492 else if (strcmp (argp, "field-widths") == 0)
1493 {
1494 options.insn_specifying_widths = enable_p;
1495 }
1496 else if (strcmp (argp, "omit-line-numbers") == 0)
1497 {
1498 file_references = lf_omit_references;
1499 }
1500 else
1501 {
1502 error (NULL, "Unknown option %s\n", optarg);
1503 }
1504 break;
1505 }
1506
1507 case 'i':
1508 isa = load_insn_table (optarg, cache_rules);
1509 if (isa->illegal_insn == NULL)
1510 error (NULL, "illegal-instruction missing from insn table\n");
1511 break;
1512
1513 case 'x':
1514 gen = do_gen (isa, decode_rules);
1515 break;
1516
1517 case 'o':
1518 decode_rules = load_decode_table (optarg);
1519 break;
1520
1521 case 'k':
1522 if (isa != NULL)
1523 error (NULL, "Cache file must appear before the insn file\n");
1524 cache_rules = load_cache_table (optarg);
1525 break;
1526
1527 case 'n':
1528 real_file_name = strdup(optarg);
1529 break;
1530
1531 case 'h':
1532 is_header = 1;
1533 break;
1534
1535 case 'c':
1536 case 'd':
1537 case 'e':
1538 case 'f':
1539 case 'm':
1540 case 'r':
1541 case 's':
1542 case 't':
1543 {
1544 lf *file = lf_open(optarg, real_file_name, file_references,
1545 (is_header ? lf_is_h : lf_is_c),
1546 argv[0]);
1547 if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
1548 {
1549 options.warning (NULL, "Explicitly generate tables with -x option\n");
1550 gen = do_gen (isa, decode_rules);
1551 }
1552 lf_print__file_start(file);
1553 switch (ch)
1554 {
1555 case 'm':
1556 if (is_header)
1557 gen_model_h (file, isa);
1558 else
1559 gen_model_c (file, isa);
1560 break;
1561 case 't':
1562 if (is_header)
1563 gen_itable_h (file, isa);
1564 else
1565 gen_itable_c (file, isa);
1566 break;
1567 case 'f':
1568 if (is_header)
1569 gen_support_h (file, isa);
1570 else
1571 gen_support_c (file, isa);
1572 break;
1573 case 'r':
1574 if (is_header)
1575 options.warning (NULL, "-hr option ignored\n");
1576 else
1577 gen_run_c (file, gen);
1578 break;
1579 case 's':
1580 if(is_header)
1581 gen_semantics_h (file, gen->semantics, isa->max_nr_words);
1582 else
1583 gen_semantics_c (file, gen->semantics, isa->caches);
1584 break;
1585 case 'd':
1586 if (is_header)
1587 gen_idecode_h (file, gen, isa, cache_rules);
1588 else
1589 gen_idecode_c (file, gen, isa, cache_rules);
1590 break;
1591 case 'e':
1592 if (is_header)
1593 gen_engine_h (file, gen, isa, cache_rules);
1594 else
1595 gen_engine_c (file, gen, isa, cache_rules);
1596 break;
1597 case 'c':
1598 if (is_header)
1599 gen_icache_h (file,
1600 gen->semantics,
1601 isa->functions,
1602 isa->max_nr_words);
1603 else
1604 gen_icache_c (file,
1605 gen->semantics,
1606 isa->functions,
1607 cache_rules);
1608 break;
1609 }
1610 lf_print__file_finish(file);
1611 lf_close(file);
1612 is_header = 0;
1613 }
1614 real_file_name = NULL;
1615 break;
1616 default:
1617 ERROR ("Bad switch");
1618 }
1619 }
1620 return (0);
1621 }
A mirror of the official binutils-gdb repository