1 /* This file is part of the program psim.
3 Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
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.
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.
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.
32 #include "ld-decode.h"
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"
46 int insn_bit_size = max_insn_bit_size;
48 igen_code code = generate_calls;
50 int generate_expanded_instructions;
51 int icache_size = 1024;
54 /****************************************************************/
57 print_insn_bits(lf *file, insn_bits *bits)
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));
71 nr += lf_putint(file, bits->value);
77 print_function_name(lf *file,
79 insn_bits *expanded_bits,
80 lf_function_name_prefixes prefix)
85 case function_name_prefix_semantics:
86 nr += lf_putstr(file, "semantic_");
88 case function_name_prefix_idecode:
89 nr += lf_printf(file, "idecode_");
91 case function_name_prefix_itable:
92 nr += lf_putstr(file, "itable_");
94 case function_name_prefix_icache:
95 nr += lf_putstr(file, "icache_");
101 /* the function name */
114 nr += lf_putchr(file, '_');
117 nr += lf_putchr(file, *pos);
124 if (generate_expanded_instructions)
125 nr += print_insn_bits(file, expanded_bits);
132 print_my_defines(lf *file,
133 insn_bits *expanded_bits,
134 table_entry *file_entry)
136 /* #define MY_INDEX xxxxx */
137 lf_indent_suppress(file);
138 lf_printf(file, "#undef MY_INDEX\n");
139 lf_indent_suppress(file);
140 lf_printf(file, "#define MY_INDEX ");
141 print_function_name(file,
142 file_entry->fields[insn_name],
144 function_name_prefix_itable);
145 lf_printf(file, "\n");
146 /* #define MY_PREFIX xxxxxx */
147 lf_indent_suppress(file);
148 lf_printf(file, "#undef MY_PREFIX\n");
149 lf_indent_suppress(file);
150 lf_printf(file, "#define MY_PREFIX ");
151 print_function_name(file,
152 file_entry->fields[insn_name],
154 function_name_prefix_none);
155 lf_printf(file, "\n");
160 print_itrace(lf *file,
161 table_entry *file_entry,
164 lf_print__external_reference(file, file_entry->line_nr, file_entry->file_name);
165 lf_printf(file, "ITRACE(trace_%s, (\"%s %s\\n\"));\n",
166 (idecode ? "idecode" : "semantics"),
167 (idecode ? "idecode" : "semantics"),
168 file_entry->fields[insn_name]);
169 lf_print__internal_reference(file);
173 /****************************************************************/
177 gen_semantics_h(insn_table *table,
181 lf_printf(file, "typedef %s idecode_semantic\n(%s);\n",
182 SEMANTIC_FUNCTION_TYPE,
183 SEMANTIC_FUNCTION_FORMAL);
184 lf_printf(file, "\n");
185 if ((code & generate_calls)) {
186 lf_printf(file, "extern int option_mpc860c0;\n");
187 lf_printf(file, "#define PAGE_SIZE 0x1000\n");
188 lf_printf(file, "\n");
189 lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n");
190 lf_printf(file, "semantic_init(device* root);\n");
191 lf_printf(file, "\n");
192 if (generate_expanded_instructions)
193 insn_table_traverse_tree(table,
197 print_semantic_declaration, /* leaf */
201 insn_table_traverse_insn(table,
203 print_semantic_declaration);
207 lf_print__this_file_is_empty(file);
213 gen_semantics_c(insn_table *table,
214 cache_table *cache_rules,
218 if ((code & generate_calls)) {
219 lf_printf(file, "\n");
220 lf_printf(file, "#include \"cpu.h\"\n");
221 lf_printf(file, "#include \"idecode.h\"\n");
222 lf_printf(file, "#include \"semantics.h\"\n");
223 lf_printf(file, "#include \"support.h\"\n");
224 lf_printf(file, "#include \"sim-inline.h\"\n");
225 lf_printf(file, "#include \"sim-fpu.h\"\n");
226 lf_printf(file, "\n");
227 lf_printf(file, "int option_mpc860c0 = 0;\n");
228 lf_printf(file, "\n");
229 lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n");
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");
235 lf_printf(file, " option_mpc860c0 *= 4; /* convert word count to byte count */\n");
236 lf_printf(file, "}\n");
237 lf_printf(file, "\n");
238 if (generate_expanded_instructions)
239 insn_table_traverse_tree(table,
243 print_semantic_definition, /* leaf */
247 insn_table_traverse_insn(table,
249 print_semantic_definition);
253 lf_print__this_file_is_empty(file);
258 /****************************************************************/
262 gen_icache_h(insn_table *table,
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,
274 print_icache_internal_function_declaration);
275 if (generate_expanded_instructions)
276 insn_table_traverse_tree(table,
280 print_icache_declaration, /* leaf */
284 insn_table_traverse_insn(table,
286 print_icache_declaration);
290 lf_print__this_file_is_empty(file);
295 gen_icache_c(insn_table *table,
296 cache_table *cache_rules,
300 /* output `internal' invalid/floating-point unavailable functions
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");
309 lf_printf(file, "#include \"support.h\"\n");
310 lf_printf(file, "#include \"sim-inline.h\"\n");
311 lf_printf(file, "#include \"sim-fpu.h\"\n");
312 lf_printf(file, "\n");
313 insn_table_traverse_function(table,
315 print_icache_internal_function_definition);
316 lf_printf(file, "\n");
317 if (generate_expanded_instructions)
318 insn_table_traverse_tree(table,
322 print_icache_definition, /* leaf */
326 insn_table_traverse_insn(table,
328 print_icache_definition);
332 lf_print__this_file_is_empty(file);
337 /****************************************************************/
345 cache_table *cache_rules = NULL;
346 lf_file_references file_references = lf_include_references;
347 decode_table *decode_rules = NULL;
348 filter *filters = NULL;
349 insn_table *instructions = NULL;
350 table_include *includes = NULL;
351 char *real_file_name = NULL;
357 printf(" igen <config-opts> ... <input-opts>... <output-opts>...\n");
358 printf("Config options:\n");
359 printf(" -F <filter-out-flag> eg -F 64 to skip 64bit instructions\n");
360 printf(" -E Expand (duplicate) semantic functions\n");
361 printf(" -I <icache-size> Generate cracking cache version\n");
362 printf(" -C Include semantics in cache functions\n");
363 printf(" -S Include insn (instruction) in icache\n");
364 printf(" -R Use defines to reference cache vars\n");
365 printf(" -L Supress line numbering in output files\n");
366 printf(" -B <bit-size> Set the number of bits in an instruction\n");
367 printf(" -H <high-bit> Set the nr of the high (msb bit)\n");
368 printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n");
369 printf(" -J Use jumps instead of function calls\n");
370 printf(" -T <mechanism> Override the mechanism used to decode an instruction\n");
371 printf(" using <mechanism> instead of what was specified in the\n");
372 printf(" decode-rules input file\n");
374 printf("Input options (ucase version also dumps loaded table):\n");
375 printf(" -o <decode-rules>\n");
376 printf(" -k <cache-rules>\n");
377 printf(" -i <instruction-table>\n");
379 printf("Output options:\n");
380 printf(" -n <real-name> Specify the real name of for the next output file\n");
381 printf(" -h Generate header file\n");
382 printf(" -c <output-file> output icache\n");
383 printf(" -d <output-file> output idecode\n");
384 printf(" -m <output-file> output model\n");
385 printf(" -s <output-file> output schematic\n");
386 printf(" -t <output-file> output itable\n");
387 printf(" -f <output-file> output support functions\n");
390 while ((ch = getopt(argc, argv,
391 "F:EI:RSLJT:CB:H:N:o:k:i:n:hc:d:m:s:t:f:"))
393 fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : ""));
396 code |= generate_with_icache;
397 code |= generate_with_semantic_icache;
400 code |= generate_with_icache;
401 code |= generate_with_insn_in_icache;
404 file_references = lf_omit_references;
407 generate_expanded_instructions = 1;
413 if (strncmp (optarg, "no-", strlen ("no-")) == 0)
415 argp = optarg + strlen ("no-");
418 else if (strncmp (optarg, "!", strlen ("!")) == 0)
420 argp = optarg + strlen ("no-");
428 if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
430 switch (argp[strlen ("gen-icache")])
433 icache_size = atoi (argp + strlen ("gen-icache") + 1);
434 code |= generate_with_icache;
437 code |= generate_with_icache;
440 error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
446 table_include **dir = &includes;
447 while ((*dir) != NULL)
449 (*dir) = ZALLOC (table_include);
450 (*dir)->dir = strdup (optarg);
454 generate_smp = a2i(optarg);
457 code |= generate_with_direct_access;
460 insn_bit_size = a2i(optarg);
461 ASSERT(insn_bit_size > 0 && insn_bit_size <= max_insn_bit_size
462 && (hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0));
465 hi_bit_nr = a2i(optarg);
466 ASSERT(hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0);
469 filters = new_filter(optarg, filters);
472 code &= ~generate_calls;
473 code |= generate_jumps;
476 force_decode_gen_type(optarg);
479 if (decode_rules == NULL || cache_rules == NULL) {
480 fprintf(stderr, "Must specify decode and cache tables\n");
483 instructions = load_insn_table(optarg, decode_rules, filters, includes);
484 fprintf(stderr, "\texpanding ...\n");
485 insn_table_expand_insns(instructions);
488 decode_rules = load_decode_table(optarg, hi_bit_nr);
491 cache_rules = load_cache_table(optarg, hi_bit_nr);
494 real_file_name = strdup(optarg);
506 lf *file = lf_open(optarg, real_file_name, file_references,
507 (is_header ? lf_is_h : lf_is_c),
509 lf_print__file_start(file);
510 ASSERT(instructions != NULL);
514 gen_semantics_h(instructions, file, code);
516 gen_semantics_c(instructions, cache_rules, file, code);
520 gen_idecode_h(file, instructions, cache_rules);
522 gen_idecode_c(file, instructions, cache_rules);
526 gen_model_h(instructions, file);
528 gen_model_c(instructions, file);
532 gen_itable_h(instructions, file);
534 gen_itable_c(instructions, file);
538 gen_support_h(instructions, file);
540 gen_support_c(instructions, file);
544 gen_icache_h(instructions, file, code);
546 gen_icache_c(instructions, cache_rules, file, code);
549 lf_print__file_finish(file);
553 real_file_name = NULL;
556 error("unknown option\n");