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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc1/] [sim/] [ppc/] [igen.c] - Rev 330
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/* 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <getopt.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 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, "#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; }
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