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c906108c SS |
1 | /* This file is part of the program psim. |
2 | ||
8d64d0fd | 3 | Copyright 1994, 1995, 1996, 1997, 2003 Andrew Cagney |
c906108c SS |
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 | |
3fd725ef | 7 | the Free Software Foundation; either version 3 of the License, or |
c906108c SS |
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 | |
51b318de | 16 | along with this program; if not, see <http://www.gnu.org/licenses/>. |
c906108c SS |
17 | |
18 | */ | |
19 | ||
c906108c | 20 | #include <getopt.h> |
3d52735b | 21 | #include <stdlib.h> |
c906108c SS |
22 | |
23 | #include "misc.h" | |
24 | #include "lf.h" | |
25 | #include "table.h" | |
68a3e151 | 26 | #include "build-config.h" |
c906108c SS |
27 | |
28 | #include "filter.h" | |
29 | ||
c906108c | 30 | #include "ld-cache.h" |
d81bb16a | 31 | #include "ld-decode.h" |
c906108c SS |
32 | #include "ld-insn.h" |
33 | ||
34 | #include "igen.h" | |
35 | ||
36 | #include "gen-model.h" | |
37 | #include "gen-icache.h" | |
38 | #include "gen-itable.h" | |
39 | #include "gen-idecode.h" | |
40 | #include "gen-semantics.h" | |
41 | #include "gen-support.h" | |
42 | ||
43 | int hi_bit_nr; | |
44 | int insn_bit_size = max_insn_bit_size; | |
45 | ||
46 | igen_code code = generate_calls; | |
47 | ||
48 | int generate_expanded_instructions; | |
49 | int icache_size = 1024; | |
50 | int generate_smp; | |
51 | ||
52 | /****************************************************************/ | |
53 | ||
54 | static int | |
55 | print_insn_bits(lf *file, insn_bits *bits) | |
56 | { | |
57 | int nr = 0; | |
58 | if (bits == NULL) | |
59 | return nr; | |
60 | nr += print_insn_bits(file, bits->last); | |
61 | nr += lf_putchr(file, '_'); | |
62 | nr += lf_putstr(file, bits->field->val_string); | |
63 | if (bits->opcode->is_boolean && bits->value == 0) | |
64 | nr += lf_putint(file, bits->opcode->boolean_constant); | |
65 | else if (!bits->opcode->is_boolean) { | |
66 | if (bits->opcode->last < bits->field->last) | |
67 | nr += lf_putint(file, bits->value << (bits->field->last - bits->opcode->last)); | |
68 | else | |
69 | nr += lf_putint(file, bits->value); | |
70 | } | |
71 | return nr; | |
72 | } | |
73 | ||
74 | extern int | |
75 | print_function_name(lf *file, | |
76 | const char *basename, | |
77 | insn_bits *expanded_bits, | |
78 | lf_function_name_prefixes prefix) | |
79 | { | |
80 | int nr = 0; | |
81 | /* the prefix */ | |
82 | switch (prefix) { | |
83 | case function_name_prefix_semantics: | |
84 | nr += lf_putstr(file, "semantic_"); | |
85 | break; | |
86 | case function_name_prefix_idecode: | |
87 | nr += lf_printf(file, "idecode_"); | |
88 | break; | |
89 | case function_name_prefix_itable: | |
90 | nr += lf_putstr(file, "itable_"); | |
91 | break; | |
92 | case function_name_prefix_icache: | |
93 | nr += lf_putstr(file, "icache_"); | |
94 | break; | |
95 | default: | |
96 | break; | |
97 | } | |
98 | ||
99 | /* the function name */ | |
100 | { | |
101 | const char *pos; | |
102 | for (pos = basename; | |
103 | *pos != '\0'; | |
104 | pos++) { | |
105 | switch (*pos) { | |
106 | case '/': | |
107 | case '-': | |
d29d5195 MG |
108 | case '(': |
109 | case ')': | |
c906108c SS |
110 | break; |
111 | case ' ': | |
112 | nr += lf_putchr(file, '_'); | |
113 | break; | |
114 | default: | |
115 | nr += lf_putchr(file, *pos); | |
116 | break; | |
117 | } | |
118 | } | |
119 | } | |
120 | ||
121 | /* the suffix */ | |
122 | if (generate_expanded_instructions) | |
123 | nr += print_insn_bits(file, expanded_bits); | |
124 | ||
125 | return nr; | |
126 | } | |
127 | ||
128 | ||
129 | void | |
130 | print_my_defines(lf *file, | |
131 | insn_bits *expanded_bits, | |
132 | table_entry *file_entry) | |
133 | { | |
134 | /* #define MY_INDEX xxxxx */ | |
135 | lf_indent_suppress(file); | |
136 | lf_printf(file, "#undef MY_INDEX\n"); | |
137 | lf_indent_suppress(file); | |
138 | lf_printf(file, "#define MY_INDEX "); | |
139 | print_function_name(file, | |
140 | file_entry->fields[insn_name], | |
141 | NULL, | |
142 | function_name_prefix_itable); | |
143 | lf_printf(file, "\n"); | |
144 | /* #define MY_PREFIX xxxxxx */ | |
145 | lf_indent_suppress(file); | |
146 | lf_printf(file, "#undef MY_PREFIX\n"); | |
147 | lf_indent_suppress(file); | |
148 | lf_printf(file, "#define MY_PREFIX "); | |
149 | print_function_name(file, | |
150 | file_entry->fields[insn_name], | |
151 | expanded_bits, | |
152 | function_name_prefix_none); | |
153 | lf_printf(file, "\n"); | |
154 | } | |
155 | ||
156 | ||
157 | void | |
158 | print_itrace(lf *file, | |
159 | table_entry *file_entry, | |
160 | int idecode) | |
161 | { | |
162 | lf_print__external_reference(file, file_entry->line_nr, file_entry->file_name); | |
163 | lf_printf(file, "ITRACE(trace_%s, (\"%s %s\\n\"));\n", | |
164 | (idecode ? "idecode" : "semantics"), | |
165 | (idecode ? "idecode" : "semantics"), | |
166 | file_entry->fields[insn_name]); | |
167 | lf_print__internal_reference(file); | |
168 | } | |
169 | ||
170 | ||
171 | /****************************************************************/ | |
172 | ||
173 | ||
174 | static void | |
175 | gen_semantics_h(insn_table *table, | |
176 | lf *file, | |
177 | igen_code generate) | |
178 | { | |
179 | lf_printf(file, "typedef %s idecode_semantic\n(%s);\n", | |
180 | SEMANTIC_FUNCTION_TYPE, | |
181 | SEMANTIC_FUNCTION_FORMAL); | |
182 | lf_printf(file, "\n"); | |
183 | if ((code & generate_calls)) { | |
c906108c SS |
184 | lf_printf(file, "extern int option_mpc860c0;\n"); |
185 | lf_printf(file, "#define PAGE_SIZE 0x1000\n"); | |
186 | lf_printf(file, "\n"); | |
d29d5195 | 187 | lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n"); |
c906108c SS |
188 | lf_printf(file, "semantic_init(device* root);\n"); |
189 | lf_printf(file, "\n"); | |
c906108c SS |
190 | if (generate_expanded_instructions) |
191 | insn_table_traverse_tree(table, | |
192 | file, NULL, | |
193 | 1, | |
194 | NULL, /* start */ | |
195 | print_semantic_declaration, /* leaf */ | |
196 | NULL, /* end */ | |
197 | NULL); /* padding */ | |
198 | else | |
199 | insn_table_traverse_insn(table, | |
200 | file, NULL, | |
201 | print_semantic_declaration); | |
202 | ||
203 | } | |
204 | else { | |
205 | lf_print__this_file_is_empty(file); | |
206 | } | |
207 | } | |
208 | ||
209 | ||
210 | static void | |
211 | gen_semantics_c(insn_table *table, | |
212 | cache_table *cache_rules, | |
213 | lf *file, | |
214 | igen_code generate) | |
215 | { | |
216 | if ((code & generate_calls)) { | |
217 | lf_printf(file, "\n"); | |
218 | lf_printf(file, "#include \"cpu.h\"\n"); | |
219 | lf_printf(file, "#include \"idecode.h\"\n"); | |
220 | lf_printf(file, "#include \"semantics.h\"\n"); | |
8d64d0fd | 221 | lf_printf(file, "#ifdef HAVE_COMMON_FPU\n"); |
d29d5195 MG |
222 | lf_printf(file, "#include \"sim-inline.h\"\n"); |
223 | lf_printf(file, "#include \"sim-fpu.h\"\n"); | |
8d64d0fd AC |
224 | lf_printf(file, "#endif\n"); |
225 | lf_printf(file, "#include \"support.h\"\n"); | |
c906108c | 226 | lf_printf(file, "\n"); |
c906108c SS |
227 | lf_printf(file, "int option_mpc860c0 = 0;\n"); |
228 | lf_printf(file, "\n"); | |
d29d5195 | 229 | lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n"); |
c906108c SS |
230 | lf_printf(file, "semantic_init(device* root)\n"); |
231 | lf_printf(file, "{\n"); | |
232 | lf_printf(file, " option_mpc860c0 = 0;\n"); | |
233 | lf_printf(file, " if (tree_find_property(root, \"/options/mpc860c0\"))\n"); | |
234 | lf_printf(file, " option_mpc860c0 = tree_find_integer_property(root, \"/options/mpc860c0\");\n"); | |
7a292a7a | 235 | lf_printf(file, " option_mpc860c0 *= 4; /* convert word count to byte count */\n"); |
c906108c SS |
236 | lf_printf(file, "}\n"); |
237 | lf_printf(file, "\n"); | |
c906108c SS |
238 | if (generate_expanded_instructions) |
239 | insn_table_traverse_tree(table, | |
240 | file, cache_rules, | |
241 | 1, | |
242 | NULL, /* start */ | |
243 | print_semantic_definition, /* leaf */ | |
244 | NULL, /* end */ | |
245 | NULL); /* padding */ | |
246 | else | |
247 | insn_table_traverse_insn(table, | |
248 | file, cache_rules, | |
249 | print_semantic_definition); | |
250 | ||
251 | } | |
252 | else { | |
253 | lf_print__this_file_is_empty(file); | |
254 | } | |
255 | } | |
256 | ||
257 | ||
258 | /****************************************************************/ | |
259 | ||
260 | ||
261 | static void | |
262 | gen_icache_h(insn_table *table, | |
263 | lf *file, | |
264 | igen_code generate) | |
265 | { | |
266 | lf_printf(file, "typedef %s idecode_icache\n(%s);\n", | |
267 | ICACHE_FUNCTION_TYPE, | |
268 | ICACHE_FUNCTION_FORMAL); | |
269 | lf_printf(file, "\n"); | |
270 | if ((code & generate_calls) | |
271 | && (code & generate_with_icache)) { | |
272 | insn_table_traverse_function(table, | |
273 | file, NULL, | |
274 | print_icache_internal_function_declaration); | |
275 | if (generate_expanded_instructions) | |
276 | insn_table_traverse_tree(table, | |
277 | file, NULL, | |
278 | 1, | |
279 | NULL, /* start */ | |
280 | print_icache_declaration, /* leaf */ | |
281 | NULL, /* end */ | |
282 | NULL); /* padding */ | |
283 | else | |
284 | insn_table_traverse_insn(table, | |
285 | file, NULL, | |
286 | print_icache_declaration); | |
287 | ||
288 | } | |
289 | else { | |
290 | lf_print__this_file_is_empty(file); | |
291 | } | |
292 | } | |
293 | ||
294 | static void | |
295 | gen_icache_c(insn_table *table, | |
296 | cache_table *cache_rules, | |
297 | lf *file, | |
298 | igen_code generate) | |
299 | { | |
300 | /* output `internal' invalid/floating-point unavailable functions | |
301 | where needed */ | |
302 | if ((code & generate_calls) | |
303 | && (code & generate_with_icache)) { | |
304 | lf_printf(file, "\n"); | |
305 | lf_printf(file, "#include \"cpu.h\"\n"); | |
306 | lf_printf(file, "#include \"idecode.h\"\n"); | |
307 | lf_printf(file, "#include \"semantics.h\"\n"); | |
308 | lf_printf(file, "#include \"icache.h\"\n"); | |
8d64d0fd | 309 | lf_printf(file, "#ifdef HAVE_COMMON_FPU\n"); |
d29d5195 MG |
310 | lf_printf(file, "#include \"sim-inline.h\"\n"); |
311 | lf_printf(file, "#include \"sim-fpu.h\"\n"); | |
8d64d0fd AC |
312 | lf_printf(file, "#endif\n"); |
313 | lf_printf(file, "#include \"support.h\"\n"); | |
c906108c SS |
314 | lf_printf(file, "\n"); |
315 | insn_table_traverse_function(table, | |
316 | file, NULL, | |
317 | print_icache_internal_function_definition); | |
318 | lf_printf(file, "\n"); | |
319 | if (generate_expanded_instructions) | |
320 | insn_table_traverse_tree(table, | |
321 | file, cache_rules, | |
322 | 1, | |
323 | NULL, /* start */ | |
324 | print_icache_definition, /* leaf */ | |
325 | NULL, /* end */ | |
326 | NULL); /* padding */ | |
327 | else | |
328 | insn_table_traverse_insn(table, | |
329 | file, cache_rules, | |
330 | print_icache_definition); | |
331 | ||
332 | } | |
333 | else { | |
334 | lf_print__this_file_is_empty(file); | |
335 | } | |
336 | } | |
337 | ||
338 | ||
339 | /****************************************************************/ | |
340 | ||
341 | ||
342 | int | |
343 | main(int argc, | |
344 | char **argv, | |
345 | char **envp) | |
346 | { | |
347 | cache_table *cache_rules = NULL; | |
348 | lf_file_references file_references = lf_include_references; | |
349 | decode_table *decode_rules = NULL; | |
350 | filter *filters = NULL; | |
351 | insn_table *instructions = NULL; | |
43c4bab0 | 352 | table_include *includes = NULL; |
c906108c SS |
353 | char *real_file_name = NULL; |
354 | int is_header = 0; | |
355 | int ch; | |
356 | ||
357 | if (argc == 1) { | |
358 | printf("Usage:\n"); | |
359 | printf(" igen <config-opts> ... <input-opts>... <output-opts>...\n"); | |
360 | printf("Config options:\n"); | |
361 | printf(" -F <filter-out-flag> eg -F 64 to skip 64bit instructions\n"); | |
362 | printf(" -E Expand (duplicate) semantic functions\n"); | |
363 | printf(" -I <icache-size> Generate cracking cache version\n"); | |
364 | printf(" -C Include semantics in cache functions\n"); | |
365 | printf(" -S Include insn (instruction) in icache\n"); | |
366 | printf(" -R Use defines to reference cache vars\n"); | |
367 | printf(" -L Supress line numbering in output files\n"); | |
368 | printf(" -B <bit-size> Set the number of bits in an instruction\n"); | |
369 | printf(" -H <high-bit> Set the nr of the high (msb bit)\n"); | |
370 | printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n"); | |
371 | printf(" -J Use jumps instead of function calls\n"); | |
372 | printf(" -T <mechanism> Override the mechanism used to decode an instruction\n"); | |
373 | printf(" using <mechanism> instead of what was specified in the\n"); | |
374 | printf(" decode-rules input file\n"); | |
375 | printf("\n"); | |
376 | printf("Input options (ucase version also dumps loaded table):\n"); | |
377 | printf(" -o <decode-rules>\n"); | |
378 | printf(" -k <cache-rules>\n"); | |
379 | printf(" -i <instruction-table>\n"); | |
380 | printf("\n"); | |
381 | printf("Output options:\n"); | |
382 | printf(" -n <real-name> Specify the real name of for the next output file\n"); | |
383 | printf(" -h Generate header file\n"); | |
384 | printf(" -c <output-file> output icache\n"); | |
385 | printf(" -d <output-file> output idecode\n"); | |
386 | printf(" -m <output-file> output model\n"); | |
387 | printf(" -s <output-file> output schematic\n"); | |
388 | printf(" -t <output-file> output itable\n"); | |
389 | printf(" -f <output-file> output support functions\n"); | |
390 | } | |
391 | ||
392 | while ((ch = getopt(argc, argv, | |
393 | "F:EI:RSLJT:CB:H:N:o:k:i:n:hc:d:m:s:t:f:")) | |
394 | != -1) { | |
395 | fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : "")); | |
396 | switch(ch) { | |
397 | case 'C': | |
398 | code |= generate_with_icache; | |
399 | code |= generate_with_semantic_icache; | |
400 | break; | |
401 | case 'S': | |
402 | code |= generate_with_icache; | |
403 | code |= generate_with_insn_in_icache; | |
404 | break; | |
405 | case 'L': | |
406 | file_references = lf_omit_references; | |
407 | break; | |
408 | case 'E': | |
409 | generate_expanded_instructions = 1; | |
410 | break; | |
43c4bab0 MG |
411 | case 'G': |
412 | { | |
413 | int enable_p; | |
414 | char *argp; | |
415 | if (strncmp (optarg, "no-", strlen ("no-")) == 0) | |
416 | { | |
417 | argp = optarg + strlen ("no-"); | |
418 | enable_p = 0; | |
419 | } | |
420 | else if (strncmp (optarg, "!", strlen ("!")) == 0) | |
421 | { | |
422 | argp = optarg + strlen ("no-"); | |
423 | enable_p = 0; | |
424 | } | |
425 | else | |
426 | { | |
427 | argp = optarg; | |
428 | enable_p = 1; | |
429 | } | |
430 | if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0) | |
431 | { | |
432 | switch (argp[strlen ("gen-icache")]) | |
433 | { | |
434 | case '=': | |
435 | icache_size = atoi (argp + strlen ("gen-icache") + 1); | |
436 | code |= generate_with_icache; | |
437 | break; | |
438 | case '\0': | |
439 | code |= generate_with_icache; | |
440 | break; | |
441 | default: | |
442 | error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n"); | |
443 | } | |
444 | } | |
445 | } | |
c906108c | 446 | case 'I': |
43c4bab0 MG |
447 | { |
448 | table_include **dir = &includes; | |
449 | while ((*dir) != NULL) | |
450 | dir = &(*dir)->next; | |
451 | (*dir) = ZALLOC (table_include); | |
452 | (*dir)->dir = strdup (optarg); | |
453 | } | |
c906108c SS |
454 | break; |
455 | case 'N': | |
456 | generate_smp = a2i(optarg); | |
457 | break; | |
458 | case 'R': | |
459 | code |= generate_with_direct_access; | |
460 | break; | |
461 | case 'B': | |
462 | insn_bit_size = a2i(optarg); | |
463 | ASSERT(insn_bit_size > 0 && insn_bit_size <= max_insn_bit_size | |
464 | && (hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0)); | |
465 | break; | |
466 | case 'H': | |
467 | hi_bit_nr = a2i(optarg); | |
468 | ASSERT(hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0); | |
469 | break; | |
470 | case 'F': | |
471 | filters = new_filter(optarg, filters); | |
472 | break; | |
473 | case 'J': | |
474 | code &= ~generate_calls; | |
475 | code |= generate_jumps; | |
476 | break; | |
477 | case 'T': | |
478 | force_decode_gen_type(optarg); | |
479 | break; | |
480 | case 'i': | |
d81bb16a AC |
481 | if (decode_rules == NULL) { |
482 | fprintf(stderr, "Must specify decode tables\n"); | |
c906108c SS |
483 | exit (1); |
484 | } | |
d81bb16a AC |
485 | instructions = load_insn_table(optarg, decode_rules, filters, includes, |
486 | &cache_rules); | |
c906108c SS |
487 | fprintf(stderr, "\texpanding ...\n"); |
488 | insn_table_expand_insns(instructions); | |
489 | break; | |
490 | case 'o': | |
491 | decode_rules = load_decode_table(optarg, hi_bit_nr); | |
492 | break; | |
493 | case 'k': | |
494 | cache_rules = load_cache_table(optarg, hi_bit_nr); | |
495 | break; | |
496 | case 'n': | |
497 | real_file_name = strdup(optarg); | |
498 | break; | |
499 | case 'h': | |
500 | is_header = 1; | |
501 | break; | |
502 | case 's': | |
503 | case 'd': | |
504 | case 'm': | |
505 | case 't': | |
506 | case 'f': | |
507 | case 'c': | |
508 | { | |
509 | lf *file = lf_open(optarg, real_file_name, file_references, | |
510 | (is_header ? lf_is_h : lf_is_c), | |
511 | argv[0]); | |
512 | lf_print__file_start(file); | |
513 | ASSERT(instructions != NULL); | |
514 | switch (ch) { | |
515 | case 's': | |
516 | if(is_header) | |
517 | gen_semantics_h(instructions, file, code); | |
518 | else | |
519 | gen_semantics_c(instructions, cache_rules, file, code); | |
520 | break; | |
521 | case 'd': | |
522 | if (is_header) | |
523 | gen_idecode_h(file, instructions, cache_rules); | |
524 | else | |
525 | gen_idecode_c(file, instructions, cache_rules); | |
526 | break; | |
527 | case 'm': | |
528 | if (is_header) | |
529 | gen_model_h(instructions, file); | |
530 | else | |
531 | gen_model_c(instructions, file); | |
532 | break; | |
533 | case 't': | |
534 | if (is_header) | |
535 | gen_itable_h(instructions, file); | |
536 | else | |
537 | gen_itable_c(instructions, file); | |
538 | break; | |
539 | case 'f': | |
540 | if (is_header) | |
541 | gen_support_h(instructions, file); | |
542 | else | |
543 | gen_support_c(instructions, file); | |
544 | break; | |
545 | case 'c': | |
546 | if (is_header) | |
547 | gen_icache_h(instructions, file, code); | |
548 | else | |
549 | gen_icache_c(instructions, cache_rules, file, code); | |
550 | break; | |
551 | } | |
552 | lf_print__file_finish(file); | |
553 | lf_close(file); | |
554 | is_header = 0; | |
555 | } | |
556 | real_file_name = NULL; | |
557 | break; | |
558 | default: | |
559 | error("unknown option\n"); | |
560 | } | |
561 | } | |
562 | return 0; | |
563 | } |