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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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