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c906108c SS |
1 | /* This file is part of the program psim. |
2 | ||
3 | Copyright (C) 1994-1997, 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 | ||
30 | #include "filter.h" | |
31 | ||
32 | #include "ld-decode.h" | |
33 | #include "ld-cache.h" | |
34 | #include "ld-insn.h" | |
35 | ||
36 | #include "igen.h" | |
37 | ||
38 | #include "gen-model.h" | |
39 | #include "gen-icache.h" | |
40 | #include "gen-itable.h" | |
41 | #include "gen-idecode.h" | |
42 | #include "gen-semantics.h" | |
43 | #include "gen-support.h" | |
44 | ||
45 | int hi_bit_nr; | |
46 | int insn_bit_size = max_insn_bit_size; | |
47 | ||
48 | igen_code code = generate_calls; | |
49 | ||
50 | int generate_expanded_instructions; | |
51 | int icache_size = 1024; | |
52 | int generate_smp; | |
53 | ||
54 | /****************************************************************/ | |
55 | ||
56 | static int | |
57 | print_insn_bits(lf *file, insn_bits *bits) | |
58 | { | |
59 | int nr = 0; | |
60 | if (bits == NULL) | |
61 | return nr; | |
62 | nr += print_insn_bits(file, bits->last); | |
63 | nr += lf_putchr(file, '_'); | |
64 | nr += lf_putstr(file, bits->field->val_string); | |
65 | if (bits->opcode->is_boolean && bits->value == 0) | |
66 | nr += lf_putint(file, bits->opcode->boolean_constant); | |
67 | else if (!bits->opcode->is_boolean) { | |
68 | if (bits->opcode->last < bits->field->last) | |
69 | nr += lf_putint(file, bits->value << (bits->field->last - bits->opcode->last)); | |
70 | else | |
71 | nr += lf_putint(file, bits->value); | |
72 | } | |
73 | return nr; | |
74 | } | |
75 | ||
76 | extern int | |
77 | print_function_name(lf *file, | |
78 | const char *basename, | |
79 | insn_bits *expanded_bits, | |
80 | lf_function_name_prefixes prefix) | |
81 | { | |
82 | int nr = 0; | |
83 | /* the prefix */ | |
84 | switch (prefix) { | |
85 | case function_name_prefix_semantics: | |
86 | nr += lf_putstr(file, "semantic_"); | |
87 | break; | |
88 | case function_name_prefix_idecode: | |
89 | nr += lf_printf(file, "idecode_"); | |
90 | break; | |
91 | case function_name_prefix_itable: | |
92 | nr += lf_putstr(file, "itable_"); | |
93 | break; | |
94 | case function_name_prefix_icache: | |
95 | nr += lf_putstr(file, "icache_"); | |
96 | break; | |
97 | default: | |
98 | break; | |
99 | } | |
100 | ||
101 | /* the function name */ | |
102 | { | |
103 | const char *pos; | |
104 | for (pos = basename; | |
105 | *pos != '\0'; | |
106 | pos++) { | |
107 | switch (*pos) { | |
108 | case '/': | |
109 | case '-': | |
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"); | |
187 | lf_printf(file, "EXTERN_SEMANTICS(void)\n"); | |
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"); | |
221 | lf_printf(file, "#include \"support.h\"\n"); | |
222 | lf_printf(file, "\n"); | |
c906108c SS |
223 | lf_printf(file, "int option_mpc860c0 = 0;\n"); |
224 | lf_printf(file, "\n"); | |
225 | lf_printf(file, "EXTERN_SEMANTICS(void)\n"); | |
226 | lf_printf(file, "semantic_init(device* root)\n"); | |
227 | lf_printf(file, "{\n"); | |
228 | lf_printf(file, " option_mpc860c0 = 0;\n"); | |
229 | lf_printf(file, " if (tree_find_property(root, \"/options/mpc860c0\"))\n"); | |
230 | lf_printf(file, " option_mpc860c0 = tree_find_integer_property(root, \"/options/mpc860c0\");\n"); | |
7a292a7a | 231 | lf_printf(file, " option_mpc860c0 *= 4; /* convert word count to byte count */\n"); |
c906108c SS |
232 | lf_printf(file, "}\n"); |
233 | lf_printf(file, "\n"); | |
c906108c SS |
234 | if (generate_expanded_instructions) |
235 | insn_table_traverse_tree(table, | |
236 | file, cache_rules, | |
237 | 1, | |
238 | NULL, /* start */ | |
239 | print_semantic_definition, /* leaf */ | |
240 | NULL, /* end */ | |
241 | NULL); /* padding */ | |
242 | else | |
243 | insn_table_traverse_insn(table, | |
244 | file, cache_rules, | |
245 | print_semantic_definition); | |
246 | ||
247 | } | |
248 | else { | |
249 | lf_print__this_file_is_empty(file); | |
250 | } | |
251 | } | |
252 | ||
253 | ||
254 | /****************************************************************/ | |
255 | ||
256 | ||
257 | static void | |
258 | gen_icache_h(insn_table *table, | |
259 | lf *file, | |
260 | igen_code generate) | |
261 | { | |
262 | lf_printf(file, "typedef %s idecode_icache\n(%s);\n", | |
263 | ICACHE_FUNCTION_TYPE, | |
264 | ICACHE_FUNCTION_FORMAL); | |
265 | lf_printf(file, "\n"); | |
266 | if ((code & generate_calls) | |
267 | && (code & generate_with_icache)) { | |
268 | insn_table_traverse_function(table, | |
269 | file, NULL, | |
270 | print_icache_internal_function_declaration); | |
271 | if (generate_expanded_instructions) | |
272 | insn_table_traverse_tree(table, | |
273 | file, NULL, | |
274 | 1, | |
275 | NULL, /* start */ | |
276 | print_icache_declaration, /* leaf */ | |
277 | NULL, /* end */ | |
278 | NULL); /* padding */ | |
279 | else | |
280 | insn_table_traverse_insn(table, | |
281 | file, NULL, | |
282 | print_icache_declaration); | |
283 | ||
284 | } | |
285 | else { | |
286 | lf_print__this_file_is_empty(file); | |
287 | } | |
288 | } | |
289 | ||
290 | static void | |
291 | gen_icache_c(insn_table *table, | |
292 | cache_table *cache_rules, | |
293 | lf *file, | |
294 | igen_code generate) | |
295 | { | |
296 | /* output `internal' invalid/floating-point unavailable functions | |
297 | where needed */ | |
298 | if ((code & generate_calls) | |
299 | && (code & generate_with_icache)) { | |
300 | lf_printf(file, "\n"); | |
301 | lf_printf(file, "#include \"cpu.h\"\n"); | |
302 | lf_printf(file, "#include \"idecode.h\"\n"); | |
303 | lf_printf(file, "#include \"semantics.h\"\n"); | |
304 | lf_printf(file, "#include \"icache.h\"\n"); | |
305 | lf_printf(file, "#include \"support.h\"\n"); | |
306 | lf_printf(file, "\n"); | |
307 | insn_table_traverse_function(table, | |
308 | file, NULL, | |
309 | print_icache_internal_function_definition); | |
310 | lf_printf(file, "\n"); | |
311 | if (generate_expanded_instructions) | |
312 | insn_table_traverse_tree(table, | |
313 | file, cache_rules, | |
314 | 1, | |
315 | NULL, /* start */ | |
316 | print_icache_definition, /* leaf */ | |
317 | NULL, /* end */ | |
318 | NULL); /* padding */ | |
319 | else | |
320 | insn_table_traverse_insn(table, | |
321 | file, cache_rules, | |
322 | print_icache_definition); | |
323 | ||
324 | } | |
325 | else { | |
326 | lf_print__this_file_is_empty(file); | |
327 | } | |
328 | } | |
329 | ||
330 | ||
331 | /****************************************************************/ | |
332 | ||
333 | ||
334 | int | |
335 | main(int argc, | |
336 | char **argv, | |
337 | char **envp) | |
338 | { | |
339 | cache_table *cache_rules = NULL; | |
340 | lf_file_references file_references = lf_include_references; | |
341 | decode_table *decode_rules = NULL; | |
342 | filter *filters = NULL; | |
343 | insn_table *instructions = NULL; | |
344 | char *real_file_name = NULL; | |
345 | int is_header = 0; | |
346 | int ch; | |
347 | ||
348 | if (argc == 1) { | |
349 | printf("Usage:\n"); | |
350 | printf(" igen <config-opts> ... <input-opts>... <output-opts>...\n"); | |
351 | printf("Config options:\n"); | |
352 | printf(" -F <filter-out-flag> eg -F 64 to skip 64bit instructions\n"); | |
353 | printf(" -E Expand (duplicate) semantic functions\n"); | |
354 | printf(" -I <icache-size> Generate cracking cache version\n"); | |
355 | printf(" -C Include semantics in cache functions\n"); | |
356 | printf(" -S Include insn (instruction) in icache\n"); | |
357 | printf(" -R Use defines to reference cache vars\n"); | |
358 | printf(" -L Supress line numbering in output files\n"); | |
359 | printf(" -B <bit-size> Set the number of bits in an instruction\n"); | |
360 | printf(" -H <high-bit> Set the nr of the high (msb bit)\n"); | |
361 | printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n"); | |
362 | printf(" -J Use jumps instead of function calls\n"); | |
363 | printf(" -T <mechanism> Override the mechanism used to decode an instruction\n"); | |
364 | printf(" using <mechanism> instead of what was specified in the\n"); | |
365 | printf(" decode-rules input file\n"); | |
366 | printf("\n"); | |
367 | printf("Input options (ucase version also dumps loaded table):\n"); | |
368 | printf(" -o <decode-rules>\n"); | |
369 | printf(" -k <cache-rules>\n"); | |
370 | printf(" -i <instruction-table>\n"); | |
371 | printf("\n"); | |
372 | printf("Output options:\n"); | |
373 | printf(" -n <real-name> Specify the real name of for the next output file\n"); | |
374 | printf(" -h Generate header file\n"); | |
375 | printf(" -c <output-file> output icache\n"); | |
376 | printf(" -d <output-file> output idecode\n"); | |
377 | printf(" -m <output-file> output model\n"); | |
378 | printf(" -s <output-file> output schematic\n"); | |
379 | printf(" -t <output-file> output itable\n"); | |
380 | printf(" -f <output-file> output support functions\n"); | |
381 | } | |
382 | ||
383 | while ((ch = getopt(argc, argv, | |
384 | "F:EI:RSLJT:CB:H:N:o:k:i:n:hc:d:m:s:t:f:")) | |
385 | != -1) { | |
386 | fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : "")); | |
387 | switch(ch) { | |
388 | case 'C': | |
389 | code |= generate_with_icache; | |
390 | code |= generate_with_semantic_icache; | |
391 | break; | |
392 | case 'S': | |
393 | code |= generate_with_icache; | |
394 | code |= generate_with_insn_in_icache; | |
395 | break; | |
396 | case 'L': | |
397 | file_references = lf_omit_references; | |
398 | break; | |
399 | case 'E': | |
400 | generate_expanded_instructions = 1; | |
401 | break; | |
402 | case 'I': | |
403 | icache_size = a2i(optarg); | |
404 | code |= generate_with_icache; | |
405 | break; | |
406 | case 'N': | |
407 | generate_smp = a2i(optarg); | |
408 | break; | |
409 | case 'R': | |
410 | code |= generate_with_direct_access; | |
411 | break; | |
412 | case 'B': | |
413 | insn_bit_size = a2i(optarg); | |
414 | ASSERT(insn_bit_size > 0 && insn_bit_size <= max_insn_bit_size | |
415 | && (hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0)); | |
416 | break; | |
417 | case 'H': | |
418 | hi_bit_nr = a2i(optarg); | |
419 | ASSERT(hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0); | |
420 | break; | |
421 | case 'F': | |
422 | filters = new_filter(optarg, filters); | |
423 | break; | |
424 | case 'J': | |
425 | code &= ~generate_calls; | |
426 | code |= generate_jumps; | |
427 | break; | |
428 | case 'T': | |
429 | force_decode_gen_type(optarg); | |
430 | break; | |
431 | case 'i': | |
432 | if (decode_rules == NULL || cache_rules == NULL) { | |
433 | fprintf(stderr, "Must specify decode and cache tables\n"); | |
434 | exit (1); | |
435 | } | |
436 | instructions = load_insn_table(optarg, decode_rules, filters); | |
437 | fprintf(stderr, "\texpanding ...\n"); | |
438 | insn_table_expand_insns(instructions); | |
439 | break; | |
440 | case 'o': | |
441 | decode_rules = load_decode_table(optarg, hi_bit_nr); | |
442 | break; | |
443 | case 'k': | |
444 | cache_rules = load_cache_table(optarg, hi_bit_nr); | |
445 | break; | |
446 | case 'n': | |
447 | real_file_name = strdup(optarg); | |
448 | break; | |
449 | case 'h': | |
450 | is_header = 1; | |
451 | break; | |
452 | case 's': | |
453 | case 'd': | |
454 | case 'm': | |
455 | case 't': | |
456 | case 'f': | |
457 | case 'c': | |
458 | { | |
459 | lf *file = lf_open(optarg, real_file_name, file_references, | |
460 | (is_header ? lf_is_h : lf_is_c), | |
461 | argv[0]); | |
462 | lf_print__file_start(file); | |
463 | ASSERT(instructions != NULL); | |
464 | switch (ch) { | |
465 | case 's': | |
466 | if(is_header) | |
467 | gen_semantics_h(instructions, file, code); | |
468 | else | |
469 | gen_semantics_c(instructions, cache_rules, file, code); | |
470 | break; | |
471 | case 'd': | |
472 | if (is_header) | |
473 | gen_idecode_h(file, instructions, cache_rules); | |
474 | else | |
475 | gen_idecode_c(file, instructions, cache_rules); | |
476 | break; | |
477 | case 'm': | |
478 | if (is_header) | |
479 | gen_model_h(instructions, file); | |
480 | else | |
481 | gen_model_c(instructions, file); | |
482 | break; | |
483 | case 't': | |
484 | if (is_header) | |
485 | gen_itable_h(instructions, file); | |
486 | else | |
487 | gen_itable_c(instructions, file); | |
488 | break; | |
489 | case 'f': | |
490 | if (is_header) | |
491 | gen_support_h(instructions, file); | |
492 | else | |
493 | gen_support_c(instructions, file); | |
494 | break; | |
495 | case 'c': | |
496 | if (is_header) | |
497 | gen_icache_h(instructions, file, code); | |
498 | else | |
499 | gen_icache_c(instructions, cache_rules, file, code); | |
500 | break; | |
501 | } | |
502 | lf_print__file_finish(file); | |
503 | lf_close(file); | |
504 | is_header = 0; | |
505 | } | |
506 | real_file_name = NULL; | |
507 | break; | |
508 | default: | |
509 | error("unknown option\n"); | |
510 | } | |
511 | } | |
512 | return 0; | |
513 | } |