| /* This file is part of the program psim. |
| |
| Copyright 1994, 1995, 1996, 1997, 2003 Andrew Cagney |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, see <http://www.gnu.org/licenses/>. |
| |
| */ |
| |
| #include <getopt.h> |
| #include <stdlib.h> |
| |
| #include "misc.h" |
| #include "lf.h" |
| #include "table.h" |
| #include "build-config.h" |
| |
| #include "filter.h" |
| |
| #include "ld-cache.h" |
| #include "ld-decode.h" |
| #include "ld-insn.h" |
| |
| #include "igen.h" |
| |
| #include "gen-model.h" |
| #include "gen-icache.h" |
| #include "gen-itable.h" |
| #include "gen-idecode.h" |
| #include "gen-semantics.h" |
| #include "gen-support.h" |
| |
| int hi_bit_nr; |
| int insn_bit_size = max_insn_bit_size; |
| |
| igen_code code = generate_calls; |
| |
| int generate_expanded_instructions; |
| int icache_size = 1024; |
| int generate_smp; |
| |
| /****************************************************************/ |
| |
| static int |
| print_insn_bits(lf *file, insn_bits *bits) |
| { |
| int nr = 0; |
| if (bits == NULL) |
| return nr; |
| nr += print_insn_bits(file, bits->last); |
| nr += lf_putchr(file, '_'); |
| nr += lf_putstr(file, bits->field->val_string); |
| if (bits->opcode->is_boolean && bits->value == 0) |
| nr += lf_putint(file, bits->opcode->boolean_constant); |
| else if (!bits->opcode->is_boolean) { |
| if (bits->opcode->last < bits->field->last) |
| nr += lf_putint(file, bits->value << (bits->field->last - bits->opcode->last)); |
| else |
| nr += lf_putint(file, bits->value); |
| } |
| return nr; |
| } |
| |
| extern int |
| print_function_name(lf *file, |
| const char *basename, |
| insn_bits *expanded_bits, |
| lf_function_name_prefixes prefix) |
| { |
| int nr = 0; |
| /* the prefix */ |
| switch (prefix) { |
| case function_name_prefix_semantics: |
| nr += lf_putstr(file, "semantic_"); |
| break; |
| case function_name_prefix_idecode: |
| nr += lf_printf(file, "idecode_"); |
| break; |
| case function_name_prefix_itable: |
| nr += lf_putstr(file, "itable_"); |
| break; |
| case function_name_prefix_icache: |
| nr += lf_putstr(file, "icache_"); |
| break; |
| default: |
| break; |
| } |
| |
| /* the function name */ |
| { |
| const char *pos; |
| for (pos = basename; |
| *pos != '\0'; |
| pos++) { |
| switch (*pos) { |
| case '/': |
| case '-': |
| case '(': |
| case ')': |
| break; |
| case ' ': |
| nr += lf_putchr(file, '_'); |
| break; |
| default: |
| nr += lf_putchr(file, *pos); |
| break; |
| } |
| } |
| } |
| |
| /* the suffix */ |
| if (generate_expanded_instructions) |
| nr += print_insn_bits(file, expanded_bits); |
| |
| return nr; |
| } |
| |
| |
| void |
| print_my_defines(lf *file, |
| insn_bits *expanded_bits, |
| table_entry *file_entry) |
| { |
| /* #define MY_INDEX xxxxx */ |
| lf_indent_suppress(file); |
| lf_printf(file, "#undef MY_INDEX\n"); |
| lf_indent_suppress(file); |
| lf_printf(file, "#define MY_INDEX "); |
| print_function_name(file, |
| file_entry->fields[insn_name], |
| NULL, |
| function_name_prefix_itable); |
| lf_printf(file, "\n"); |
| /* #define MY_PREFIX xxxxxx */ |
| lf_indent_suppress(file); |
| lf_printf(file, "#undef MY_PREFIX\n"); |
| lf_indent_suppress(file); |
| lf_printf(file, "#define MY_PREFIX "); |
| print_function_name(file, |
| file_entry->fields[insn_name], |
| expanded_bits, |
| function_name_prefix_none); |
| lf_printf(file, "\n"); |
| } |
| |
| |
| void |
| print_itrace(lf *file, |
| table_entry *file_entry, |
| int idecode) |
| { |
| lf_print__external_reference(file, file_entry->line_nr, file_entry->file_name); |
| lf_printf(file, "ITRACE(trace_%s, (\"%s %s\\n\"));\n", |
| (idecode ? "idecode" : "semantics"), |
| (idecode ? "idecode" : "semantics"), |
| file_entry->fields[insn_name]); |
| lf_print__internal_reference(file); |
| } |
| |
| |
| /****************************************************************/ |
| |
| |
| static void |
| gen_semantics_h(insn_table *table, |
| lf *file, |
| igen_code generate) |
| { |
| lf_printf(file, "typedef %s idecode_semantic\n(%s);\n", |
| SEMANTIC_FUNCTION_TYPE, |
| SEMANTIC_FUNCTION_FORMAL); |
| lf_printf(file, "\n"); |
| if ((code & generate_calls)) { |
| lf_printf(file, "extern int option_mpc860c0;\n"); |
| lf_printf(file, "#define MPC860C0_PAGE_SIZE 0x1000\n"); |
| lf_printf(file, "\n"); |
| lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n"); |
| lf_printf(file, "semantic_init(device* root);\n"); |
| lf_printf(file, "\n"); |
| if (generate_expanded_instructions) |
| insn_table_traverse_tree(table, |
| file, NULL, |
| 1, |
| NULL, /* start */ |
| print_semantic_declaration, /* leaf */ |
| NULL, /* end */ |
| NULL); /* padding */ |
| else |
| insn_table_traverse_insn(table, |
| file, NULL, |
| print_semantic_declaration); |
| |
| } |
| else { |
| lf_print__this_file_is_empty(file); |
| } |
| } |
| |
| |
| static void |
| gen_semantics_c(insn_table *table, |
| cache_table *cache_rules, |
| lf *file, |
| igen_code generate) |
| { |
| if ((code & generate_calls)) { |
| lf_printf(file, "\n"); |
| lf_printf(file, "#include \"cpu.h\"\n"); |
| lf_printf(file, "#include \"idecode.h\"\n"); |
| lf_printf(file, "#include \"semantics.h\"\n"); |
| lf_printf(file, "#include \"tree.h\"\n"); |
| lf_printf(file, "#ifdef HAVE_COMMON_FPU\n"); |
| lf_printf(file, "#include \"sim-inline.h\"\n"); |
| lf_printf(file, "#include \"sim-fpu.h\"\n"); |
| lf_printf(file, "#endif\n"); |
| lf_printf(file, "#include \"support.h\"\n"); |
| lf_printf(file, "\n"); |
| lf_printf(file, "int option_mpc860c0 = 0;\n"); |
| lf_printf(file, "\n"); |
| lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n"); |
| lf_printf(file, "semantic_init(device* root)\n"); |
| lf_printf(file, "{\n"); |
| lf_printf(file, " option_mpc860c0 = 0;\n"); |
| lf_printf(file, " if (tree_find_property(root, \"/options/mpc860c0\"))\n"); |
| lf_printf(file, " option_mpc860c0 = tree_find_integer_property(root, \"/options/mpc860c0\");\n"); |
| lf_printf(file, " option_mpc860c0 *= 4; /* convert word count to byte count */\n"); |
| lf_printf(file, "}\n"); |
| lf_printf(file, "\n"); |
| if (generate_expanded_instructions) |
| insn_table_traverse_tree(table, |
| file, cache_rules, |
| 1, |
| NULL, /* start */ |
| print_semantic_definition, /* leaf */ |
| NULL, /* end */ |
| NULL); /* padding */ |
| else |
| insn_table_traverse_insn(table, |
| file, cache_rules, |
| print_semantic_definition); |
| |
| } |
| else { |
| lf_print__this_file_is_empty(file); |
| } |
| } |
| |
| |
| /****************************************************************/ |
| |
| |
| static void |
| gen_icache_h(insn_table *table, |
| lf *file, |
| igen_code generate) |
| { |
| lf_printf(file, "typedef %s idecode_icache\n(%s);\n", |
| ICACHE_FUNCTION_TYPE, |
| ICACHE_FUNCTION_FORMAL); |
| lf_printf(file, "\n"); |
| if ((code & generate_calls) |
| && (code & generate_with_icache)) { |
| insn_table_traverse_function(table, |
| file, NULL, |
| print_icache_internal_function_declaration); |
| if (generate_expanded_instructions) |
| insn_table_traverse_tree(table, |
| file, NULL, |
| 1, |
| NULL, /* start */ |
| print_icache_declaration, /* leaf */ |
| NULL, /* end */ |
| NULL); /* padding */ |
| else |
| insn_table_traverse_insn(table, |
| file, NULL, |
| print_icache_declaration); |
| |
| } |
| else { |
| lf_print__this_file_is_empty(file); |
| } |
| } |
| |
| static void |
| gen_icache_c(insn_table *table, |
| cache_table *cache_rules, |
| lf *file, |
| igen_code generate) |
| { |
| /* output `internal' invalid/floating-point unavailable functions |
| where needed */ |
| if ((code & generate_calls) |
| && (code & generate_with_icache)) { |
| lf_printf(file, "\n"); |
| lf_printf(file, "#include \"cpu.h\"\n"); |
| lf_printf(file, "#include \"idecode.h\"\n"); |
| lf_printf(file, "#include \"semantics.h\"\n"); |
| lf_printf(file, "#include \"icache.h\"\n"); |
| lf_printf(file, "#ifdef HAVE_COMMON_FPU\n"); |
| lf_printf(file, "#include \"sim-inline.h\"\n"); |
| lf_printf(file, "#include \"sim-fpu.h\"\n"); |
| lf_printf(file, "#endif\n"); |
| lf_printf(file, "#include \"support.h\"\n"); |
| lf_printf(file, "\n"); |
| insn_table_traverse_function(table, |
| file, NULL, |
| print_icache_internal_function_definition); |
| lf_printf(file, "\n"); |
| if (generate_expanded_instructions) |
| insn_table_traverse_tree(table, |
| file, cache_rules, |
| 1, |
| NULL, /* start */ |
| print_icache_definition, /* leaf */ |
| NULL, /* end */ |
| NULL); /* padding */ |
| else |
| insn_table_traverse_insn(table, |
| file, cache_rules, |
| print_icache_definition); |
| |
| } |
| else { |
| lf_print__this_file_is_empty(file); |
| } |
| } |
| |
| |
| /****************************************************************/ |
| |
| |
| int |
| main(int argc, |
| char **argv, |
| char **envp) |
| { |
| cache_table *cache_rules = NULL; |
| lf_file_references file_references = lf_include_references; |
| decode_table *decode_rules = NULL; |
| filter *filters = NULL; |
| insn_table *instructions = NULL; |
| table_include *includes = NULL; |
| char *real_file_name = NULL; |
| int is_header = 0; |
| int ch; |
| |
| if (argc == 1) { |
| printf("Usage:\n"); |
| printf(" igen <config-opts> ... <input-opts>... <output-opts>...\n"); |
| printf("Config options:\n"); |
| printf(" -F <filter-out-flag> eg -F 64 to skip 64bit instructions\n"); |
| printf(" -E Expand (duplicate) semantic functions\n"); |
| printf(" -I <icache-size> Generate cracking cache version\n"); |
| printf(" -C Include semantics in cache functions\n"); |
| printf(" -S Include insn (instruction) in icache\n"); |
| printf(" -R Use defines to reference cache vars\n"); |
| printf(" -L Supress line numbering in output files\n"); |
| printf(" -B <bit-size> Set the number of bits in an instruction\n"); |
| printf(" -H <high-bit> Set the nr of the high (msb bit)\n"); |
| printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n"); |
| printf(" -J Use jumps instead of function calls\n"); |
| printf(" -T <mechanism> Override the mechanism used to decode an instruction\n"); |
| printf(" using <mechanism> instead of what was specified in the\n"); |
| printf(" decode-rules input file\n"); |
| printf("\n"); |
| printf("Input options (ucase version also dumps loaded table):\n"); |
| printf(" -o <decode-rules>\n"); |
| printf(" -k <cache-rules>\n"); |
| printf(" -i <instruction-table>\n"); |
| printf("\n"); |
| printf("Output options:\n"); |
| printf(" -n <real-name> Specify the real name of for the next output file\n"); |
| printf(" -h Generate header file\n"); |
| printf(" -c <output-file> output icache\n"); |
| printf(" -d <output-file> output idecode\n"); |
| printf(" -m <output-file> output model\n"); |
| printf(" -s <output-file> output schematic\n"); |
| printf(" -t <output-file> output itable\n"); |
| printf(" -f <output-file> output support functions\n"); |
| } |
| |
| while ((ch = getopt(argc, argv, |
| "F:EI:RSLJT:CB:H:N:o:k:i:n:hc:d:m:s:t:f:")) |
| != -1) { |
| fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : "")); |
| switch(ch) { |
| case 'C': |
| code |= generate_with_icache; |
| code |= generate_with_semantic_icache; |
| break; |
| case 'S': |
| code |= generate_with_icache; |
| code |= generate_with_insn_in_icache; |
| break; |
| case 'L': |
| file_references = lf_omit_references; |
| break; |
| case 'E': |
| generate_expanded_instructions = 1; |
| break; |
| case 'G': |
| { |
| int enable_p; |
| char *argp; |
| if (strncmp (optarg, "no-", strlen ("no-")) == 0) |
| { |
| argp = optarg + strlen ("no-"); |
| enable_p = 0; |
| } |
| else if (strncmp (optarg, "!", strlen ("!")) == 0) |
| { |
| argp = optarg + strlen ("no-"); |
| enable_p = 0; |
| } |
| else |
| { |
| argp = optarg; |
| enable_p = 1; |
| } |
| if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0) |
| { |
| switch (argp[strlen ("gen-icache")]) |
| { |
| case '=': |
| icache_size = atoi (argp + strlen ("gen-icache") + 1); |
| code |= generate_with_icache; |
| break; |
| case '\0': |
| code |= generate_with_icache; |
| break; |
| default: |
| error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n"); |
| } |
| } |
| } |
| case 'I': |
| { |
| table_include **dir = &includes; |
| while ((*dir) != NULL) |
| dir = &(*dir)->next; |
| (*dir) = ZALLOC (table_include); |
| (*dir)->dir = strdup (optarg); |
| } |
| break; |
| case 'N': |
| generate_smp = a2i(optarg); |
| break; |
| case 'R': |
| code |= generate_with_direct_access; |
| break; |
| case 'B': |
| insn_bit_size = a2i(optarg); |
| ASSERT(insn_bit_size > 0 && insn_bit_size <= max_insn_bit_size |
| && (hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0)); |
| break; |
| case 'H': |
| hi_bit_nr = a2i(optarg); |
| ASSERT(hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0); |
| break; |
| case 'F': |
| filters = new_filter(optarg, filters); |
| break; |
| case 'J': |
| code &= ~generate_calls; |
| code |= generate_jumps; |
| break; |
| case 'T': |
| force_decode_gen_type(optarg); |
| break; |
| case 'i': |
| if (decode_rules == NULL) { |
| fprintf(stderr, "Must specify decode tables\n"); |
| exit (1); |
| } |
| instructions = load_insn_table(optarg, decode_rules, filters, includes, |
| &cache_rules); |
| fprintf(stderr, "\texpanding ...\n"); |
| insn_table_expand_insns(instructions); |
| break; |
| case 'o': |
| decode_rules = load_decode_table(optarg, hi_bit_nr); |
| break; |
| case 'k': |
| cache_rules = load_cache_table(optarg, hi_bit_nr); |
| break; |
| case 'n': |
| real_file_name = strdup(optarg); |
| break; |
| case 'h': |
| is_header = 1; |
| break; |
| case 's': |
| case 'd': |
| case 'm': |
| case 't': |
| case 'f': |
| case 'c': |
| { |
| lf *file = lf_open(optarg, real_file_name, file_references, |
| (is_header ? lf_is_h : lf_is_c), |
| argv[0]); |
| lf_print__file_start(file); |
| ASSERT(instructions != NULL); |
| switch (ch) { |
| case 's': |
| if(is_header) |
| gen_semantics_h(instructions, file, code); |
| else |
| gen_semantics_c(instructions, cache_rules, file, code); |
| break; |
| case 'd': |
| if (is_header) |
| gen_idecode_h(file, instructions, cache_rules); |
| else |
| gen_idecode_c(file, instructions, cache_rules); |
| break; |
| case 'm': |
| if (is_header) |
| gen_model_h(instructions, file); |
| else |
| gen_model_c(instructions, file); |
| break; |
| case 't': |
| if (is_header) |
| gen_itable_h(instructions, file); |
| else |
| gen_itable_c(instructions, file); |
| break; |
| case 'f': |
| if (is_header) |
| gen_support_h(instructions, file); |
| else |
| gen_support_c(instructions, file); |
| break; |
| case 'c': |
| if (is_header) |
| gen_icache_h(instructions, file, code); |
| else |
| gen_icache_c(instructions, cache_rules, file, code); |
| break; |
| } |
| lf_print__file_finish(file); |
| lf_close(file); |
| is_header = 0; |
| } |
| real_file_name = NULL; |
| break; |
| default: |
| error("unknown option\n"); |
| } |
| } |
| return 0; |
| } |
