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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [sim/] [ppc/] [ld-decode.c] - Rev 816
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/* This file is part of the program psim. Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au> 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. */ /* load the opcode stat structure */ #include "misc.h" #include "lf.h" #include "table.h" #include "ld-decode.h" #ifndef NULL #define NULL 0 #endif enum { op_options, op_first, op_last, op_force_first, op_force_last, op_force_expansion, op_special_mask, op_special_value, op_special_constant, nr_decode_fields, }; static const name_map decode_type_map[] = { { "normal", normal_decode_rule }, { "expand-forced", expand_forced_rule }, { "boolean", boolean_rule }, { NULL, normal_decode_rule }, }; static const name_map decode_gen_map[] = { { "array", array_gen }, { "switch", switch_gen }, { "padded-switch", padded_switch_gen }, { "goto-switch", goto_switch_gen }, { NULL, -1 }, }; static const name_map decode_slash_map[] = { { "variable-slash", 0 }, { "constant-slash", 1 }, { NULL }, }; static decode_gen_type overriding_gen_type = invalid_gen; void force_decode_gen_type(const char *type) { overriding_gen_type = name2i(type, decode_gen_map); } decode_table * load_decode_table(char *file_name, int hi_bit_nr) { table *file = table_open(file_name, nr_decode_fields, 0); table_entry *entry; decode_table *table = NULL; decode_table **curr_rule = &table; while ((entry = table_entry_read(file)) != NULL) { decode_table *new_rule = ZALLOC(decode_table); new_rule->type = name2i(entry->fields[op_options], decode_type_map); new_rule->gen = (overriding_gen_type != invalid_gen ? overriding_gen_type : name2i(entry->fields[op_options], decode_gen_map)); new_rule->force_slash = name2i(entry->fields[op_options], decode_slash_map); new_rule->first = target_a2i(hi_bit_nr, entry->fields[op_first]); new_rule->last = target_a2i(hi_bit_nr, entry->fields[op_last]); new_rule->force_first = (strlen(entry->fields[op_force_first]) ? target_a2i(hi_bit_nr, entry->fields[op_force_first]) : new_rule->last + 1); new_rule->force_last = (strlen(entry->fields[op_force_last]) ? target_a2i(hi_bit_nr, entry->fields[op_force_last]) : new_rule->first - 1); new_rule->force_expansion = entry->fields[op_force_expansion]; new_rule->special_mask = a2i(entry->fields[op_special_mask]); new_rule->special_value = a2i(entry->fields[op_special_value]); new_rule->special_constant = a2i(entry->fields[op_special_constant]); *curr_rule = new_rule; curr_rule = &new_rule->next; } return table; } void dump_decode_rule(decode_table *rule, int indent) { dumpf(indent, "((decode_table*)%p\n", rule); if (rule) { dumpf(indent, " (type %s)\n", i2name(rule->type, decode_type_map)); dumpf(indent, " (gen %s)\n", i2name(rule->gen, decode_gen_map)); dumpf(indent, " (force_slash %d)\n", rule->force_slash); dumpf(indent, " (first %d)\n", rule->first); dumpf(indent, " (last %d)\n", rule->last); dumpf(indent, " (force_first %d)\n", rule->force_first); dumpf(indent, " (force_last %d)\n", rule->force_last); dumpf(indent, " (force_expansion \"%s\")\n", rule->force_expansion); dumpf(indent, " (special_mask 0x%x)\n", rule->special_mask); dumpf(indent, " (special_value 0x%x)\n", rule->special_value); dumpf(indent, " (special_constant 0x%x)\n", rule->special_constant); dumpf(indent, " (next 0x%x)\n", rule->next); } dumpf(indent, " )\n"); } #ifdef MAIN static void dump_decode_rules(decode_table *rule, int indent) { while (rule) { dump_decode_rule(rule, indent); rule = rule->next; } } int main(int argc, char **argv) { decode_table *rules; if (argc != 3) error("Usage: decode <decode-file> <hi-bit-nr>\n"); rules = load_decode_table(argv[1], a2i(argv[2])); dump_decode_rules(rules, 0); return 0; } #endif
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