| 1 | /* This file is part of the program psim. |
| 2 | |
| 3 | Copyright 1994, 1995, 1996, 1997, 2003 Andrew Cagney |
| 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 3 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, see <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | |
| 22 | #include <getopt.h> |
| 23 | |
| 24 | #include "misc.h" |
| 25 | #include "lf.h" |
| 26 | #include "table.h" |
| 27 | #include "build-config.h" |
| 28 | |
| 29 | #include "filter.h" |
| 30 | |
| 31 | #include "ld-cache.h" |
| 32 | #include "ld-decode.h" |
| 33 | #include "ld-insn.h" |
| 34 | |
| 35 | #include "igen.h" |
| 36 | |
| 37 | #include "gen-model.h" |
| 38 | #include "gen-icache.h" |
| 39 | #include "gen-itable.h" |
| 40 | #include "gen-idecode.h" |
| 41 | #include "gen-semantics.h" |
| 42 | #include "gen-support.h" |
| 43 | |
| 44 | int hi_bit_nr; |
| 45 | int insn_bit_size = max_insn_bit_size; |
| 46 | |
| 47 | igen_code code = generate_calls; |
| 48 | |
| 49 | int generate_expanded_instructions; |
| 50 | int icache_size = 1024; |
| 51 | int generate_smp; |
| 52 | |
| 53 | /****************************************************************/ |
| 54 | |
| 55 | static int |
| 56 | print_insn_bits(lf *file, insn_bits *bits) |
| 57 | { |
| 58 | int nr = 0; |
| 59 | if (bits == NULL) |
| 60 | return nr; |
| 61 | nr += print_insn_bits(file, bits->last); |
| 62 | nr += lf_putchr(file, '_'); |
| 63 | nr += lf_putstr(file, bits->field->val_string); |
| 64 | if (bits->opcode->is_boolean && bits->value == 0) |
| 65 | nr += lf_putint(file, bits->opcode->boolean_constant); |
| 66 | else if (!bits->opcode->is_boolean) { |
| 67 | if (bits->opcode->last < bits->field->last) |
| 68 | nr += lf_putint(file, bits->value << (bits->field->last - bits->opcode->last)); |
| 69 | else |
| 70 | nr += lf_putint(file, bits->value); |
| 71 | } |
| 72 | return nr; |
| 73 | } |
| 74 | |
| 75 | extern int |
| 76 | print_function_name(lf *file, |
| 77 | const char *basename, |
| 78 | insn_bits *expanded_bits, |
| 79 | lf_function_name_prefixes prefix) |
| 80 | { |
| 81 | int nr = 0; |
| 82 | /* the prefix */ |
| 83 | switch (prefix) { |
| 84 | case function_name_prefix_semantics: |
| 85 | nr += lf_putstr(file, "semantic_"); |
| 86 | break; |
| 87 | case function_name_prefix_idecode: |
| 88 | nr += lf_printf(file, "idecode_"); |
| 89 | break; |
| 90 | case function_name_prefix_itable: |
| 91 | nr += lf_putstr(file, "itable_"); |
| 92 | break; |
| 93 | case function_name_prefix_icache: |
| 94 | nr += lf_putstr(file, "icache_"); |
| 95 | break; |
| 96 | default: |
| 97 | break; |
| 98 | } |
| 99 | |
| 100 | /* the function name */ |
| 101 | { |
| 102 | const char *pos; |
| 103 | for (pos = basename; |
| 104 | *pos != '\0'; |
| 105 | pos++) { |
| 106 | switch (*pos) { |
| 107 | case '/': |
| 108 | case '-': |
| 109 | case '(': |
| 110 | case ')': |
| 111 | break; |
| 112 | case ' ': |
| 113 | nr += lf_putchr(file, '_'); |
| 114 | break; |
| 115 | default: |
| 116 | nr += lf_putchr(file, *pos); |
| 117 | break; |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | /* the suffix */ |
| 123 | if (generate_expanded_instructions) |
| 124 | nr += print_insn_bits(file, expanded_bits); |
| 125 | |
| 126 | return nr; |
| 127 | } |
| 128 | |
| 129 | |
| 130 | void |
| 131 | print_my_defines(lf *file, |
| 132 | insn_bits *expanded_bits, |
| 133 | table_entry *file_entry) |
| 134 | { |
| 135 | /* #define MY_INDEX xxxxx */ |
| 136 | lf_indent_suppress(file); |
| 137 | lf_printf(file, "#undef MY_INDEX\n"); |
| 138 | lf_indent_suppress(file); |
| 139 | lf_printf(file, "#define MY_INDEX "); |
| 140 | print_function_name(file, |
| 141 | file_entry->fields[insn_name], |
| 142 | NULL, |
| 143 | function_name_prefix_itable); |
| 144 | lf_printf(file, "\n"); |
| 145 | /* #define MY_PREFIX xxxxxx */ |
| 146 | lf_indent_suppress(file); |
| 147 | lf_printf(file, "#undef MY_PREFIX\n"); |
| 148 | lf_indent_suppress(file); |
| 149 | lf_printf(file, "#define MY_PREFIX "); |
| 150 | print_function_name(file, |
| 151 | file_entry->fields[insn_name], |
| 152 | expanded_bits, |
| 153 | function_name_prefix_none); |
| 154 | lf_printf(file, "\n"); |
| 155 | } |
| 156 | |
| 157 | |
| 158 | void |
| 159 | print_itrace(lf *file, |
| 160 | table_entry *file_entry, |
| 161 | int idecode) |
| 162 | { |
| 163 | lf_print__external_reference(file, file_entry->line_nr, file_entry->file_name); |
| 164 | lf_printf(file, "ITRACE(trace_%s, (\"%s %s\\n\"));\n", |
| 165 | (idecode ? "idecode" : "semantics"), |
| 166 | (idecode ? "idecode" : "semantics"), |
| 167 | file_entry->fields[insn_name]); |
| 168 | lf_print__internal_reference(file); |
| 169 | } |
| 170 | |
| 171 | |
| 172 | /****************************************************************/ |
| 173 | |
| 174 | |
| 175 | static void |
| 176 | gen_semantics_h(insn_table *table, |
| 177 | lf *file, |
| 178 | igen_code generate) |
| 179 | { |
| 180 | lf_printf(file, "typedef %s idecode_semantic\n(%s);\n", |
| 181 | SEMANTIC_FUNCTION_TYPE, |
| 182 | SEMANTIC_FUNCTION_FORMAL); |
| 183 | lf_printf(file, "\n"); |
| 184 | if ((code & generate_calls)) { |
| 185 | lf_printf(file, "extern int option_mpc860c0;\n"); |
| 186 | lf_printf(file, "#define PAGE_SIZE 0x1000\n"); |
| 187 | lf_printf(file, "\n"); |
| 188 | lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n"); |
| 189 | lf_printf(file, "semantic_init(device* root);\n"); |
| 190 | lf_printf(file, "\n"); |
| 191 | if (generate_expanded_instructions) |
| 192 | insn_table_traverse_tree(table, |
| 193 | file, NULL, |
| 194 | 1, |
| 195 | NULL, /* start */ |
| 196 | print_semantic_declaration, /* leaf */ |
| 197 | NULL, /* end */ |
| 198 | NULL); /* padding */ |
| 199 | else |
| 200 | insn_table_traverse_insn(table, |
| 201 | file, NULL, |
| 202 | print_semantic_declaration); |
| 203 | |
| 204 | } |
| 205 | else { |
| 206 | lf_print__this_file_is_empty(file); |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | |
| 211 | static void |
| 212 | gen_semantics_c(insn_table *table, |
| 213 | cache_table *cache_rules, |
| 214 | lf *file, |
| 215 | igen_code generate) |
| 216 | { |
| 217 | if ((code & generate_calls)) { |
| 218 | lf_printf(file, "\n"); |
| 219 | lf_printf(file, "#include \"cpu.h\"\n"); |
| 220 | lf_printf(file, "#include \"idecode.h\"\n"); |
| 221 | lf_printf(file, "#include \"semantics.h\"\n"); |
| 222 | lf_printf(file, "#ifdef HAVE_COMMON_FPU\n"); |
| 223 | lf_printf(file, "#include \"sim-inline.h\"\n"); |
| 224 | lf_printf(file, "#include \"sim-fpu.h\"\n"); |
| 225 | lf_printf(file, "#endif\n"); |
| 226 | lf_printf(file, "#include \"support.h\"\n"); |
| 227 | lf_printf(file, "\n"); |
| 228 | lf_printf(file, "int option_mpc860c0 = 0;\n"); |
| 229 | lf_printf(file, "\n"); |
| 230 | lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n"); |
| 231 | lf_printf(file, "semantic_init(device* root)\n"); |
| 232 | lf_printf(file, "{\n"); |
| 233 | lf_printf(file, " option_mpc860c0 = 0;\n"); |
| 234 | lf_printf(file, " if (tree_find_property(root, \"/options/mpc860c0\"))\n"); |
| 235 | lf_printf(file, " option_mpc860c0 = tree_find_integer_property(root, \"/options/mpc860c0\");\n"); |
| 236 | lf_printf(file, " option_mpc860c0 *= 4; /* convert word count to byte count */\n"); |
| 237 | lf_printf(file, "}\n"); |
| 238 | lf_printf(file, "\n"); |
| 239 | if (generate_expanded_instructions) |
| 240 | insn_table_traverse_tree(table, |
| 241 | file, cache_rules, |
| 242 | 1, |
| 243 | NULL, /* start */ |
| 244 | print_semantic_definition, /* leaf */ |
| 245 | NULL, /* end */ |
| 246 | NULL); /* padding */ |
| 247 | else |
| 248 | insn_table_traverse_insn(table, |
| 249 | file, cache_rules, |
| 250 | print_semantic_definition); |
| 251 | |
| 252 | } |
| 253 | else { |
| 254 | lf_print__this_file_is_empty(file); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | |
| 259 | /****************************************************************/ |
| 260 | |
| 261 | |
| 262 | static void |
| 263 | gen_icache_h(insn_table *table, |
| 264 | lf *file, |
| 265 | igen_code generate) |
| 266 | { |
| 267 | lf_printf(file, "typedef %s idecode_icache\n(%s);\n", |
| 268 | ICACHE_FUNCTION_TYPE, |
| 269 | ICACHE_FUNCTION_FORMAL); |
| 270 | lf_printf(file, "\n"); |
| 271 | if ((code & generate_calls) |
| 272 | && (code & generate_with_icache)) { |
| 273 | insn_table_traverse_function(table, |
| 274 | file, NULL, |
| 275 | print_icache_internal_function_declaration); |
| 276 | if (generate_expanded_instructions) |
| 277 | insn_table_traverse_tree(table, |
| 278 | file, NULL, |
| 279 | 1, |
| 280 | NULL, /* start */ |
| 281 | print_icache_declaration, /* leaf */ |
| 282 | NULL, /* end */ |
| 283 | NULL); /* padding */ |
| 284 | else |
| 285 | insn_table_traverse_insn(table, |
| 286 | file, NULL, |
| 287 | print_icache_declaration); |
| 288 | |
| 289 | } |
| 290 | else { |
| 291 | lf_print__this_file_is_empty(file); |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | static void |
| 296 | gen_icache_c(insn_table *table, |
| 297 | cache_table *cache_rules, |
| 298 | lf *file, |
| 299 | igen_code generate) |
| 300 | { |
| 301 | /* output `internal' invalid/floating-point unavailable functions |
| 302 | where needed */ |
| 303 | if ((code & generate_calls) |
| 304 | && (code & generate_with_icache)) { |
| 305 | lf_printf(file, "\n"); |
| 306 | lf_printf(file, "#include \"cpu.h\"\n"); |
| 307 | lf_printf(file, "#include \"idecode.h\"\n"); |
| 308 | lf_printf(file, "#include \"semantics.h\"\n"); |
| 309 | lf_printf(file, "#include \"icache.h\"\n"); |
| 310 | lf_printf(file, "#ifdef HAVE_COMMON_FPU\n"); |
| 311 | lf_printf(file, "#include \"sim-inline.h\"\n"); |
| 312 | lf_printf(file, "#include \"sim-fpu.h\"\n"); |
| 313 | lf_printf(file, "#endif\n"); |
| 314 | lf_printf(file, "#include \"support.h\"\n"); |
| 315 | lf_printf(file, "\n"); |
| 316 | insn_table_traverse_function(table, |
| 317 | file, NULL, |
| 318 | print_icache_internal_function_definition); |
| 319 | lf_printf(file, "\n"); |
| 320 | if (generate_expanded_instructions) |
| 321 | insn_table_traverse_tree(table, |
| 322 | file, cache_rules, |
| 323 | 1, |
| 324 | NULL, /* start */ |
| 325 | print_icache_definition, /* leaf */ |
| 326 | NULL, /* end */ |
| 327 | NULL); /* padding */ |
| 328 | else |
| 329 | insn_table_traverse_insn(table, |
| 330 | file, cache_rules, |
| 331 | print_icache_definition); |
| 332 | |
| 333 | } |
| 334 | else { |
| 335 | lf_print__this_file_is_empty(file); |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | |
| 340 | /****************************************************************/ |
| 341 | |
| 342 | |
| 343 | int |
| 344 | main(int argc, |
| 345 | char **argv, |
| 346 | char **envp) |
| 347 | { |
| 348 | cache_table *cache_rules = NULL; |
| 349 | lf_file_references file_references = lf_include_references; |
| 350 | decode_table *decode_rules = NULL; |
| 351 | filter *filters = NULL; |
| 352 | insn_table *instructions = NULL; |
| 353 | table_include *includes = NULL; |
| 354 | char *real_file_name = NULL; |
| 355 | int is_header = 0; |
| 356 | int ch; |
| 357 | |
| 358 | if (argc == 1) { |
| 359 | printf("Usage:\n"); |
| 360 | printf(" igen <config-opts> ... <input-opts>... <output-opts>...\n"); |
| 361 | printf("Config options:\n"); |
| 362 | printf(" -F <filter-out-flag> eg -F 64 to skip 64bit instructions\n"); |
| 363 | printf(" -E Expand (duplicate) semantic functions\n"); |
| 364 | printf(" -I <icache-size> Generate cracking cache version\n"); |
| 365 | printf(" -C Include semantics in cache functions\n"); |
| 366 | printf(" -S Include insn (instruction) in icache\n"); |
| 367 | printf(" -R Use defines to reference cache vars\n"); |
| 368 | printf(" -L Supress line numbering in output files\n"); |
| 369 | printf(" -B <bit-size> Set the number of bits in an instruction\n"); |
| 370 | printf(" -H <high-bit> Set the nr of the high (msb bit)\n"); |
| 371 | printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n"); |
| 372 | printf(" -J Use jumps instead of function calls\n"); |
| 373 | printf(" -T <mechanism> Override the mechanism used to decode an instruction\n"); |
| 374 | printf(" using <mechanism> instead of what was specified in the\n"); |
| 375 | printf(" decode-rules input file\n"); |
| 376 | printf("\n"); |
| 377 | printf("Input options (ucase version also dumps loaded table):\n"); |
| 378 | printf(" -o <decode-rules>\n"); |
| 379 | printf(" -k <cache-rules>\n"); |
| 380 | printf(" -i <instruction-table>\n"); |
| 381 | printf("\n"); |
| 382 | printf("Output options:\n"); |
| 383 | printf(" -n <real-name> Specify the real name of for the next output file\n"); |
| 384 | printf(" -h Generate header file\n"); |
| 385 | printf(" -c <output-file> output icache\n"); |
| 386 | printf(" -d <output-file> output idecode\n"); |
| 387 | printf(" -m <output-file> output model\n"); |
| 388 | printf(" -s <output-file> output schematic\n"); |
| 389 | printf(" -t <output-file> output itable\n"); |
| 390 | printf(" -f <output-file> output support functions\n"); |
| 391 | } |
| 392 | |
| 393 | while ((ch = getopt(argc, argv, |
| 394 | "F:EI:RSLJT:CB:H:N:o:k:i:n:hc:d:m:s:t:f:")) |
| 395 | != -1) { |
| 396 | fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : "")); |
| 397 | switch(ch) { |
| 398 | case 'C': |
| 399 | code |= generate_with_icache; |
| 400 | code |= generate_with_semantic_icache; |
| 401 | break; |
| 402 | case 'S': |
| 403 | code |= generate_with_icache; |
| 404 | code |= generate_with_insn_in_icache; |
| 405 | break; |
| 406 | case 'L': |
| 407 | file_references = lf_omit_references; |
| 408 | break; |
| 409 | case 'E': |
| 410 | generate_expanded_instructions = 1; |
| 411 | break; |
| 412 | case 'G': |
| 413 | { |
| 414 | int enable_p; |
| 415 | char *argp; |
| 416 | if (strncmp (optarg, "no-", strlen ("no-")) == 0) |
| 417 | { |
| 418 | argp = optarg + strlen ("no-"); |
| 419 | enable_p = 0; |
| 420 | } |
| 421 | else if (strncmp (optarg, "!", strlen ("!")) == 0) |
| 422 | { |
| 423 | argp = optarg + strlen ("no-"); |
| 424 | enable_p = 0; |
| 425 | } |
| 426 | else |
| 427 | { |
| 428 | argp = optarg; |
| 429 | enable_p = 1; |
| 430 | } |
| 431 | if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0) |
| 432 | { |
| 433 | switch (argp[strlen ("gen-icache")]) |
| 434 | { |
| 435 | case '=': |
| 436 | icache_size = atoi (argp + strlen ("gen-icache") + 1); |
| 437 | code |= generate_with_icache; |
| 438 | break; |
| 439 | case '\0': |
| 440 | code |= generate_with_icache; |
| 441 | break; |
| 442 | default: |
| 443 | error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n"); |
| 444 | } |
| 445 | } |
| 446 | } |
| 447 | case 'I': |
| 448 | { |
| 449 | table_include **dir = &includes; |
| 450 | while ((*dir) != NULL) |
| 451 | dir = &(*dir)->next; |
| 452 | (*dir) = ZALLOC (table_include); |
| 453 | (*dir)->dir = strdup (optarg); |
| 454 | } |
| 455 | break; |
| 456 | case 'N': |
| 457 | generate_smp = a2i(optarg); |
| 458 | break; |
| 459 | case 'R': |
| 460 | code |= generate_with_direct_access; |
| 461 | break; |
| 462 | case 'B': |
| 463 | insn_bit_size = a2i(optarg); |
| 464 | ASSERT(insn_bit_size > 0 && insn_bit_size <= max_insn_bit_size |
| 465 | && (hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0)); |
| 466 | break; |
| 467 | case 'H': |
| 468 | hi_bit_nr = a2i(optarg); |
| 469 | ASSERT(hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0); |
| 470 | break; |
| 471 | case 'F': |
| 472 | filters = new_filter(optarg, filters); |
| 473 | break; |
| 474 | case 'J': |
| 475 | code &= ~generate_calls; |
| 476 | code |= generate_jumps; |
| 477 | break; |
| 478 | case 'T': |
| 479 | force_decode_gen_type(optarg); |
| 480 | break; |
| 481 | case 'i': |
| 482 | if (decode_rules == NULL) { |
| 483 | fprintf(stderr, "Must specify decode tables\n"); |
| 484 | exit (1); |
| 485 | } |
| 486 | instructions = load_insn_table(optarg, decode_rules, filters, includes, |
| 487 | &cache_rules); |
| 488 | fprintf(stderr, "\texpanding ...\n"); |
| 489 | insn_table_expand_insns(instructions); |
| 490 | break; |
| 491 | case 'o': |
| 492 | decode_rules = load_decode_table(optarg, hi_bit_nr); |
| 493 | break; |
| 494 | case 'k': |
| 495 | cache_rules = load_cache_table(optarg, hi_bit_nr); |
| 496 | break; |
| 497 | case 'n': |
| 498 | real_file_name = strdup(optarg); |
| 499 | break; |
| 500 | case 'h': |
| 501 | is_header = 1; |
| 502 | break; |
| 503 | case 's': |
| 504 | case 'd': |
| 505 | case 'm': |
| 506 | case 't': |
| 507 | case 'f': |
| 508 | case 'c': |
| 509 | { |
| 510 | lf *file = lf_open(optarg, real_file_name, file_references, |
| 511 | (is_header ? lf_is_h : lf_is_c), |
| 512 | argv[0]); |
| 513 | lf_print__file_start(file); |
| 514 | ASSERT(instructions != NULL); |
| 515 | switch (ch) { |
| 516 | case 's': |
| 517 | if(is_header) |
| 518 | gen_semantics_h(instructions, file, code); |
| 519 | else |
| 520 | gen_semantics_c(instructions, cache_rules, file, code); |
| 521 | break; |
| 522 | case 'd': |
| 523 | if (is_header) |
| 524 | gen_idecode_h(file, instructions, cache_rules); |
| 525 | else |
| 526 | gen_idecode_c(file, instructions, cache_rules); |
| 527 | break; |
| 528 | case 'm': |
| 529 | if (is_header) |
| 530 | gen_model_h(instructions, file); |
| 531 | else |
| 532 | gen_model_c(instructions, file); |
| 533 | break; |
| 534 | case 't': |
| 535 | if (is_header) |
| 536 | gen_itable_h(instructions, file); |
| 537 | else |
| 538 | gen_itable_c(instructions, file); |
| 539 | break; |
| 540 | case 'f': |
| 541 | if (is_header) |
| 542 | gen_support_h(instructions, file); |
| 543 | else |
| 544 | gen_support_c(instructions, file); |
| 545 | break; |
| 546 | case 'c': |
| 547 | if (is_header) |
| 548 | gen_icache_h(instructions, file, code); |
| 549 | else |
| 550 | gen_icache_c(instructions, cache_rules, file, code); |
| 551 | break; |
| 552 | } |
| 553 | lf_print__file_finish(file); |
| 554 | lf_close(file); |
| 555 | is_header = 0; |
| 556 | } |
| 557 | real_file_name = NULL; |
| 558 | break; |
| 559 | default: |
| 560 | error("unknown option\n"); |
| 561 | } |
| 562 | } |
| 563 | return 0; |
| 564 | } |