1435 lines
40 KiB
C
1435 lines
40 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <getopt.h>
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#include "misc.h"
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#include "lf.h"
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#include "table.h"
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#include "config.h"
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#include "filter.h"
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#include "igen.h"
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#include "ld-insn.h"
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#include "ld-decode.h"
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#include "ld-cache.h"
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#include "gen.h"
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#include "gen-model.h"
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#include "gen-icache.h"
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#include "gen-itable.h"
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#include "gen-idecode.h"
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#include "gen-semantics.h"
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#include "gen-engine.h"
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#include "gen-support.h"
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#include "gen-engine.h"
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/****************************************************************/
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/* Semantic functions */
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int
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print_semantic_function_formal (lf *file,
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int nr_prefetched_words)
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{
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int nr = 0;
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int word_nr;
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if (options.gen.icache || nr_prefetched_words < 0)
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{
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nr += lf_printf (file, "SIM_DESC sd,\n");
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nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
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options.prefix.global.name);
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nr += lf_printf (file, "%sinstruction_address cia",
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options.prefix.global.name);
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}
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else if (options.gen.smp)
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{
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nr += lf_printf (file, "sim_cpu *cpu,\n");
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for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
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{
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nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
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options.prefix.global.name,
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word_nr);
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}
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nr += lf_printf (file, "%sinstruction_address cia",
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options.prefix.global.name);
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}
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else
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{
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nr += lf_printf (file, "SIM_DESC sd,\n");
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for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
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{
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nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
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options.prefix.global.name,
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word_nr);
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}
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nr += lf_printf (file, "%sinstruction_address cia",
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options.prefix.global.name);
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}
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return nr;
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}
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int
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print_semantic_function_actual (lf *file,
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int nr_prefetched_words)
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{
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int nr = 0;
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int word_nr;
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if (options.gen.icache || nr_prefetched_words < 0)
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{
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nr += lf_printf (file, "sd, cache_entry, cia");
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}
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else
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{
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if (options.gen.smp)
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nr += lf_printf (file, "cpu");
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else
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nr += lf_printf (file, "sd");
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for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
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nr += lf_printf (file, ", instruction_%d", word_nr);
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nr += lf_printf (file, ", cia");
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}
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return nr;
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}
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int
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print_semantic_function_type (lf *file)
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{
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int nr = 0;
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nr += lf_printf (file, "%sinstruction_address",
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options.prefix.global.name);
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return nr;
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}
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/* Idecode functions */
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int
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print_icache_function_formal (lf *file,
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int nr_prefetched_words)
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{
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int nr = 0;
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int word_nr;
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if (options.gen.smp)
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nr += lf_printf (file, "sim_cpu *cpu,\n");
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else
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nr += lf_printf (file, "SIM_DESC sd,\n");
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for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
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nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
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options.prefix.global.name, word_nr);
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nr += lf_printf (file, " %sinstruction_address cia,\n",
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options.prefix.global.name);
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nr += lf_printf (file, " %sidecode_cache *cache_entry",
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options.prefix.global.name);
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return nr;
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}
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int
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print_icache_function_actual (lf *file,
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int nr_prefetched_words)
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{
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int nr = 0;
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int word_nr;
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if (options.gen.smp)
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nr += lf_printf (file, "cpu");
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else
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nr += lf_printf (file, "sd");
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for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
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nr += lf_printf (file, ", instruction_%d", word_nr);
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nr += lf_printf (file, ", cia, cache_entry");
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return nr;
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}
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int
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print_icache_function_type (lf *file)
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{
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int nr;
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if (options.gen.semantic_icache)
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{
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nr = print_semantic_function_type (file);
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}
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else
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{
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nr = lf_printf (file, "%sidecode_semantic *",
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options.prefix.global.name);
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}
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return nr;
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}
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/* Function names */
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static int
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print_opcode_bits (lf *file,
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opcode_bits *bits)
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{
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int nr = 0;
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if (bits == NULL)
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return nr;
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nr += lf_putchr (file, '_');
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nr += lf_putstr (file, bits->field->val_string);
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if (bits->opcode->is_boolean && bits->value == 0)
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nr += lf_putint (file, bits->opcode->boolean_constant);
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else if (!bits->opcode->is_boolean) {
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if (bits->opcode->last < bits->field->last)
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nr += lf_putint (file, bits->value << (bits->field->last - bits->opcode->last));
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else
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nr += lf_putint (file, bits->value);
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}
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nr += print_opcode_bits (file, bits->next);
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return nr;
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}
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static int
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print_c_name (lf *file,
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const char *name)
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{
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int nr = 0;
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const char *pos;
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for (pos = name; *pos != '\0'; pos++)
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{
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switch (*pos)
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{
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case '/':
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case '-':
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break;
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case ' ':
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case '.':
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nr += lf_putchr (file, '_');
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break;
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default:
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nr += lf_putchr (file, *pos);
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break;
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}
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}
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return nr;
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}
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extern int
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print_function_name (lf *file,
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const char *basename,
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const char *format_name,
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const char *model_name,
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opcode_bits *expanded_bits,
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lf_function_name_prefixes prefix)
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{
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int nr = 0;
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/* the prefix */
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switch (prefix)
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{
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case function_name_prefix_semantics:
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nr += lf_printf (file, "%s", options.prefix.semantics.name);
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nr += lf_printf (file, "semantic_");
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break;
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case function_name_prefix_idecode:
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nr += lf_printf (file, "%s", options.prefix.idecode.name);
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nr += lf_printf (file, "idecode_");
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break;
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case function_name_prefix_itable:
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nr += lf_printf (file, "%sitable_", options.prefix.itable.name);
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break;
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case function_name_prefix_icache:
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nr += lf_printf (file, "%s", options.prefix.icache.name);
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nr += lf_printf (file, "icache_");
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break;
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case function_name_prefix_engine:
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nr += lf_printf (file, "%s", options.prefix.engine.name);
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nr += lf_printf (file, "engine_");
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default:
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break;
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}
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if (model_name != NULL)
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{
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nr += print_c_name (file, model_name);
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nr += lf_printf (file, "_");
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}
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/* the format name if available */
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if (format_name != NULL)
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{
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nr += print_c_name (file, format_name);
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nr += lf_printf (file, "_");
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}
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/* the function name */
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nr += print_c_name (file, basename);
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/* the suffix */
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nr += print_opcode_bits (file, expanded_bits);
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return nr;
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}
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void
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print_my_defines (lf *file,
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const char *basename,
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const char *format_name,
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opcode_bits *expanded_bits)
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{
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/* #define MY_INDEX xxxxx */
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lf_indent_suppress (file);
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lf_printf (file, "#undef MY_INDEX\n");
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lf_indent_suppress (file);
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lf_printf (file, "#define MY_INDEX ");
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print_function_name (file,
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basename, format_name, NULL,
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NULL,
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function_name_prefix_itable);
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lf_printf (file, "\n");
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/* #define MY_PREFIX xxxxxx */
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lf_indent_suppress (file);
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lf_printf (file, "#undef ");
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print_function_name (file,
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basename, format_name, NULL,
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expanded_bits,
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function_name_prefix_none);
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lf_printf (file, "\n");
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lf_indent_suppress (file);
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lf_printf (file, "#undef MY_PREFIX\n");
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lf_indent_suppress (file);
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lf_printf (file, "#define MY_PREFIX ");
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print_function_name (file,
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basename, format_name, NULL,
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expanded_bits,
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function_name_prefix_none);
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lf_printf (file, "\n");
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/* #define MY_NAME xxxxxx */
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lf_indent_suppress (file);
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lf_indent_suppress (file);
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lf_printf (file, "#undef MY_NAME\n");
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lf_indent_suppress (file);
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lf_printf (file, "#define MY_NAME \"");
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print_function_name (file,
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basename, format_name, NULL,
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expanded_bits,
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function_name_prefix_none);
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lf_printf (file, "\"\n");
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}
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static int
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print_itrace_prefix (lf *file,
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const char *phase_lc)
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{
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const char *prefix = "trace_one_insn (";
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int indent = strlen (prefix);
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lf_printf (file, "%sSD, CPU, %s, TRACE_LINENUM_P (CPU),\n",
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prefix, (options.gen.delayed_branch ? "cia.ip" : "cia"));
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lf_indent (file, +indent);
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lf_printf (file, "%sitable[MY_INDEX].file,\n", options.prefix.itable.name);
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lf_printf (file, "%sitable[MY_INDEX].line_nr,\n", options.prefix.itable.name);
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lf_printf (file, "\"%s\",\n", phase_lc);
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lf_printf (file, "\"%%-18s - ");
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return indent;
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}
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static void
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print_itrace_format (lf *file,
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insn_mnemonic_entry *assembler)
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{
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/* pass=1 is fmt string; pass=2 is is arguments */
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int pass;
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/* print the format string */
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for (pass = 1; pass <= 2; pass++)
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{
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const char *chp = assembler->format;
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chp++; /* skip the leading quote */
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/* prefix the format with the insn `name' */
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if (pass == 2)
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{
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lf_printf (file, ",\n");
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lf_printf (file, "%sitable[MY_INDEX].name", options.prefix.itable.name);
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}
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/* write out the format/args */
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while (*chp != '\0')
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{
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if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
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{
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if (pass == 1)
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lf_putchr (file, chp[1]);
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chp += 2;
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}
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else if (chp[0] == '<' || chp[0] == '%')
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{
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/* parse [ "%" ... ] "<" [ func "#" ] param ">" */
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const char *fmt;
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const char *func;
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int strlen_func;
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const char *param;
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int strlen_param;
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/* the "%" ... "<" format */
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fmt = chp;
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while (chp[0] != '<' && chp[0] != '\0')
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chp++;
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if (chp[0] != '<')
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error (assembler->line, "Missing `<' after `%%'\n");
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chp++;
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/* [ "func" # ] OR "param" */
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func = chp;
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param = chp;
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while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
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chp++;
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strlen_func = chp - func;
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if (chp[0] == '#')
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{
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chp++;
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param = chp;
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while (chp[0] != '>' && chp[0] != '\0')
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chp++;
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}
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strlen_param = chp - param;
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if (chp[0] != '>')
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error (assembler->line, "Missing closing `>' in assembler string\n");
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chp++;
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/* now process it */
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if (pass == 2)
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lf_printf (file, ",\n");
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if (strncmp (fmt, "<", 1) == 0)
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/* implicit long int format */
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{
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if (pass == 1)
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lf_printf (file, "%%ld");
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else
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{
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lf_printf (file, "(long) ");
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lf_write (file, param, strlen_param);
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}
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}
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else if (strncmp (fmt, "%<", 2) == 0)
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/* explicit format */
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{
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if (pass == 1)
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lf_printf (file, "%%");
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else
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lf_write (file, param, strlen_param);
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}
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else if (strncmp (fmt, "%s<", 3) == 0)
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/* string format */
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{
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if (pass == 1)
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lf_printf (file, "%%s");
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else
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{
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lf_printf (file, "%sstr_", options.prefix.global.name);
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lf_write (file, func, strlen_func);
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lf_printf (file, " (SD_, ");
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lf_write (file, param, strlen_param);
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lf_printf (file, ")");
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}
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}
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else if (strncmp (fmt, "%lx<", 4) == 0)
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/* simple hex */
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{
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if (pass == 1)
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lf_printf (file, "%%lx");
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else
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{
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lf_printf (file, "(unsigned long) ");
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lf_write (file, param, strlen_param);
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}
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}
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else if (strncmp (fmt, "%08lx<", 6) == 0)
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/* simple hex */
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{
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if (pass == 1)
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lf_printf (file, "%%08lx");
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else
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{
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lf_printf (file, "(unsigned long) ");
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lf_write (file, param, strlen_param);
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}
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}
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else
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error (assembler->line, "Unknown assembler string format\n");
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}
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else
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{
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if (pass == 1)
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lf_putchr (file, chp[0]);
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chp += 1;
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}
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}
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}
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lf_printf (file, ");\n");
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}
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void
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print_itrace (lf *file,
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insn_entry *insn,
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int idecode)
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{
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const char *phase = (idecode) ? "DECODE" : "INSN";
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const char *phase_lc = (idecode) ? "decode" : "insn";
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lf_printf (file, "\n");
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lf_indent_suppress (file);
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lf_printf (file, "#if defined (WITH_TRACE)\n");
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lf_printf (file, "/* trace the instructions execution if enabled */\n");
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lf_printf (file, "if (TRACE_%s_P (CPU)) {\n", phase);
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lf_indent (file, +2);
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if (insn->mnemonics != NULL)
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{
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insn_mnemonic_entry *assembler = insn->mnemonics;
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int is_first = 1;
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do
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{
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if (assembler->condition != NULL)
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{
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int indent;
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lf_printf (file, "%sif (%s)\n",
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is_first ? "" : "else ",
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assembler->condition);
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lf_indent (file, +2);
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indent = print_itrace_prefix (file, phase_lc);
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print_itrace_format (file, assembler);
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lf_indent (file, -indent);
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lf_indent (file, -2);
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if (assembler->next == NULL)
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error (assembler->line, "Missing final unconditional assembler\n");
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}
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else
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{
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int indent;
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if (!is_first)
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{
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lf_printf (file, "else\n");
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lf_indent (file, +2);
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}
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indent = print_itrace_prefix (file, phase_lc);
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print_itrace_format (file, assembler);
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lf_indent (file, -indent);
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if (!is_first)
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lf_indent (file, -2);
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if (assembler->next != NULL)
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error (assembler->line, "Unconditional assembler is not last\n");
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}
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is_first = 0;
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assembler = assembler->next;
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}
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while (assembler != NULL);
|
|
}
|
|
else
|
|
{
|
|
int indent = print_itrace_prefix (file, phase_lc);
|
|
lf_printf (file, "?\",\n");
|
|
lf_printf (file, "itable[MY_INDEX].name);\n");
|
|
lf_indent (file, -indent);
|
|
}
|
|
lf_indent (file, -2);
|
|
lf_printf (file, "}\n");
|
|
lf_indent_suppress (file);
|
|
lf_printf (file, "#endif\n");
|
|
}
|
|
|
|
|
|
void
|
|
print_sim_engine_abort (lf *file,
|
|
const char *message)
|
|
{
|
|
lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
|
|
lf_printf (file, "\"%s\"", message);
|
|
lf_printf (file, ");\n");
|
|
}
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
static void
|
|
gen_semantics_h (lf *file,
|
|
insn_list *semantics,
|
|
int max_nr_words)
|
|
{
|
|
int word_nr;
|
|
insn_list *semantic;
|
|
for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
|
|
{
|
|
lf_printf (file, "typedef ");
|
|
print_semantic_function_type (file);
|
|
lf_printf (file, " %sidecode_semantic",
|
|
options.prefix.global.name);
|
|
if (word_nr >= 0)
|
|
lf_printf (file, "_%d", word_nr);
|
|
lf_printf (file, "\n(");
|
|
lf_indent (file, +1);
|
|
print_semantic_function_formal (file, word_nr);
|
|
lf_indent (file, -1);
|
|
lf_printf (file, ");\n");
|
|
lf_printf (file, "\n");
|
|
}
|
|
switch (options.gen.code)
|
|
{
|
|
case generate_calls:
|
|
for (semantic = semantics; semantic != NULL; semantic = semantic->next)
|
|
{
|
|
/* Ignore any special/internal instructions */
|
|
if (semantic->insn->nr_words == 0)
|
|
continue;
|
|
print_semantic_declaration (file,
|
|
semantic->insn,
|
|
semantic->expanded_bits,
|
|
semantic->opcodes,
|
|
semantic->nr_prefetched_words);
|
|
}
|
|
break;
|
|
case generate_jumps:
|
|
lf_print__this_file_is_empty (file, "generating jumps");
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
gen_semantics_c (lf *file,
|
|
insn_list *semantics,
|
|
cache_entry *cache_rules)
|
|
{
|
|
if (options.gen.code == generate_calls)
|
|
{
|
|
insn_list *semantic;
|
|
lf_printf (file, "\n");
|
|
lf_printf (file, "#include \"sim-main.h\"\n");
|
|
lf_printf (file, "#include \"%sitable.h\"\n",
|
|
options.prefix.itable.name);
|
|
lf_printf (file, "#include \"%sidecode.h\"\n",
|
|
options.prefix.idecode.name);
|
|
lf_printf (file, "#include \"%ssemantics.h\"\n",
|
|
options.prefix.semantics.name);
|
|
lf_printf (file, "#include \"%ssupport.h\"\n",
|
|
options.prefix.support.name);
|
|
lf_printf (file, "\n");
|
|
for (semantic = semantics; semantic != NULL; semantic = semantic->next)
|
|
{
|
|
/* Ignore any special/internal instructions */
|
|
if (semantic->insn->nr_words == 0)
|
|
continue;
|
|
print_semantic_definition (file,
|
|
semantic->insn,
|
|
semantic->expanded_bits,
|
|
semantic->opcodes,
|
|
cache_rules,
|
|
semantic->nr_prefetched_words);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lf_print__this_file_is_empty (file, "generating jump engine");
|
|
}
|
|
}
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
static void
|
|
gen_icache_h (lf *file,
|
|
insn_list *semantic,
|
|
function_entry *functions,
|
|
int max_nr_words)
|
|
{
|
|
int word_nr;
|
|
for (word_nr = 0; word_nr <= max_nr_words; word_nr++)
|
|
{
|
|
lf_printf (file, "typedef ");
|
|
print_icache_function_type(file);
|
|
lf_printf (file, " %sidecode_icache_%d\n(",
|
|
options.prefix.global.name,
|
|
word_nr);
|
|
print_icache_function_formal(file, word_nr);
|
|
lf_printf (file, ");\n");
|
|
lf_printf (file, "\n");
|
|
}
|
|
if (options.gen.code == generate_calls
|
|
&& options.gen.icache)
|
|
{
|
|
function_entry_traverse (file, functions,
|
|
print_icache_internal_function_declaration,
|
|
NULL);
|
|
while (semantic != NULL)
|
|
{
|
|
print_icache_declaration (file,
|
|
semantic->insn,
|
|
semantic->expanded_bits,
|
|
semantic->opcodes,
|
|
semantic->nr_prefetched_words);
|
|
semantic = semantic->next;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lf_print__this_file_is_empty (file, "generating jump engine");
|
|
}
|
|
}
|
|
|
|
static void
|
|
gen_icache_c (lf *file,
|
|
insn_list *semantic,
|
|
function_entry *functions,
|
|
cache_entry *cache_rules)
|
|
{
|
|
/* output `internal' invalid/floating-point unavailable functions
|
|
where needed */
|
|
if (options.gen.code == generate_calls
|
|
&& options.gen.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, "#include \"support.h\"\n");
|
|
lf_printf (file, "\n");
|
|
function_entry_traverse (file, functions,
|
|
print_icache_internal_function_definition,
|
|
NULL);
|
|
lf_printf (file, "\n");
|
|
while (semantic != NULL)
|
|
{
|
|
print_icache_definition (file,
|
|
semantic->insn,
|
|
semantic->expanded_bits,
|
|
semantic->opcodes,
|
|
cache_rules,
|
|
semantic->nr_prefetched_words);
|
|
semantic = semantic->next;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lf_print__this_file_is_empty (file, "generating jump engine");
|
|
}
|
|
}
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
static void
|
|
gen_idecode_h (lf *file,
|
|
gen_table *gen,
|
|
insn_table *insns,
|
|
cache_entry *cache_rules)
|
|
{
|
|
lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
|
|
options.insn_bit_size, options.prefix.global.name);
|
|
if (options.gen.delayed_branch)
|
|
{
|
|
lf_printf (file, "typedef struct _%sinstruction_address {\n",
|
|
options.prefix.global.name);
|
|
lf_printf (file, " address_word ip; /* instruction pointer */\n");
|
|
lf_printf (file, " address_word dp; /* delayed-slot pointer */\n");
|
|
lf_printf (file, "} %sinstruction_address;\n", options.prefix.global.name);
|
|
}
|
|
else
|
|
{
|
|
lf_printf (file, "typedef address_word %sinstruction_address;\n",
|
|
options.prefix.global.name);
|
|
|
|
}
|
|
if (options.gen.nia == nia_is_invalid
|
|
&& strlen (options.prefix.global.uname) > 0)
|
|
{
|
|
lf_indent_suppress (file);
|
|
lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
|
|
options.prefix.global.uname);
|
|
lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
|
|
}
|
|
lf_printf (file, "\n");
|
|
print_icache_struct (file, insns, cache_rules);
|
|
lf_printf (file, "\n");
|
|
if (options.gen.icache)
|
|
{
|
|
ERROR ("FIXME - idecode with icache suffering from bit-rot");
|
|
}
|
|
else
|
|
{
|
|
gen_list *entry;
|
|
for (entry = gen->tables; entry != NULL; entry = entry->next)
|
|
{
|
|
print_idecode_issue_function_header (file,
|
|
entry->processor,
|
|
0/*is definition*/,
|
|
1/*ALWAYS ONE WORD*/);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
gen_idecode_c (lf *file,
|
|
gen_table *gen,
|
|
insn_table *isa,
|
|
cache_entry *cache_rules)
|
|
{
|
|
/* the intro */
|
|
lf_printf (file, "#include \"sim-main.h\"\n");
|
|
lf_printf (file, "#include \"%sidecode.h\"\n", options.prefix.global.name);
|
|
lf_printf (file, "#include \"%ssemantics.h\"\n", options.prefix.global.name);
|
|
lf_printf (file, "#include \"%sicache.h\"\n", options.prefix.global.name);
|
|
lf_printf (file, "#include \"%ssupport.h\"\n", options.prefix.global.name);
|
|
lf_printf (file, "\n");
|
|
lf_printf (file, "\n");
|
|
|
|
print_idecode_globals (file);
|
|
lf_printf (file, "\n");
|
|
|
|
switch (options.gen.code)
|
|
{
|
|
case generate_calls:
|
|
{
|
|
gen_list *entry;
|
|
for (entry = gen->tables; entry != NULL; entry = entry->next)
|
|
{
|
|
print_idecode_lookups (file, entry->table, cache_rules);
|
|
|
|
/* output the main idecode routine */
|
|
if (!options.gen.icache)
|
|
{
|
|
print_idecode_issue_function_header (file,
|
|
entry->processor,
|
|
1/*is definition*/,
|
|
1/*ALWAYS ONE WORD*/);
|
|
lf_printf (file, "{\n");
|
|
lf_indent (file, +2);
|
|
lf_printf (file, "%sinstruction_address nia;\n",
|
|
options.prefix.global.name);
|
|
print_idecode_body (file, entry->table, "nia =");
|
|
lf_printf (file, "return nia;");
|
|
lf_indent (file, -2);
|
|
lf_printf (file, "}\n");
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case generate_jumps:
|
|
{
|
|
lf_print__this_file_is_empty (file, "generating a jump engine");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/****************************************************************/
|
|
|
|
|
|
static void
|
|
gen_run_c (lf *file,
|
|
gen_table *gen)
|
|
{
|
|
gen_list *entry;
|
|
lf_printf (file, "#include \"sim-main.h\"\n");
|
|
lf_printf (file, "#include \"engine.h\"\n");
|
|
lf_printf (file, "#include \"bfd.h\"\n");
|
|
lf_printf (file, "\n");
|
|
lf_printf (file, "void\n");
|
|
lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
|
|
lf_printf (file, " int next_cpu_nr,\n");
|
|
lf_printf (file, " int siggnal)\n");
|
|
lf_printf (file, "{\n");
|
|
lf_indent (file, +2);
|
|
if (options.gen.multi_sim)
|
|
{
|
|
lf_printf (file, "int mach;\n");
|
|
lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
|
|
lf_printf (file, " mach = 0;\n");
|
|
lf_printf (file, "else\n");
|
|
lf_printf (file, " mach = STATE_ARCHITECTURE (sd)->mach;\n");
|
|
lf_printf (file, "switch (mach)\n");
|
|
lf_printf (file, " {\n");
|
|
lf_indent (file, +2);
|
|
for (entry = gen->tables; entry != NULL; entry = entry->next)
|
|
{
|
|
lf_printf (file, "case bfd_mach_%s:\n", entry->processor);
|
|
lf_indent (file, +2);
|
|
print_function_name (file,
|
|
"run",
|
|
NULL, /* format name */
|
|
entry->processor,
|
|
NULL, /* expanded bits */
|
|
function_name_prefix_engine);
|
|
lf_printf (file, " (sd, next_cpu_nr, siggnal);\n");
|
|
lf_printf (file, "break;\n");
|
|
lf_indent (file, -2);
|
|
}
|
|
lf_printf (file, "default:\n");
|
|
lf_indent (file, +2);
|
|
lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
|
|
lf_printf (file, " \"sim_engine_run - unknown machine\");\n");
|
|
lf_printf (file, "break;\n");
|
|
lf_indent (file, -2);
|
|
lf_indent (file, -2);
|
|
lf_printf (file, " }\n");
|
|
}
|
|
else
|
|
{
|
|
print_function_name (file,
|
|
"run",
|
|
NULL, /* format name */
|
|
NULL, /* NO processor */
|
|
NULL, /* expanded bits */
|
|
function_name_prefix_engine);
|
|
lf_printf (file, " (sd, next_cpu_nr, siggnal);\n");
|
|
}
|
|
lf_indent (file, -2);
|
|
lf_printf (file, "}\n");
|
|
}
|
|
|
|
/****************************************************************/
|
|
|
|
static gen_table *
|
|
do_gen (insn_table *isa,
|
|
decode_table *decode_rules)
|
|
{
|
|
gen_table *gen;
|
|
if (decode_rules == NULL)
|
|
error (NULL, "Must specify a decode table\n");
|
|
if (isa == NULL)
|
|
error (NULL, "Must specify an instruction table\n");
|
|
if (decode_table_max_word_nr (decode_rules) > 0)
|
|
options.gen.multi_word = decode_table_max_word_nr (decode_rules);
|
|
gen = make_gen_tables (isa, decode_rules);
|
|
gen_tables_expand_insns (gen);
|
|
gen_tables_expand_semantics (gen);
|
|
return gen;
|
|
}
|
|
|
|
/****************************************************************/
|
|
|
|
igen_options options;
|
|
|
|
int
|
|
main (int argc,
|
|
char **argv,
|
|
char **envp)
|
|
{
|
|
cache_entry *cache_rules = NULL;
|
|
lf_file_references file_references = lf_include_references;
|
|
decode_table *decode_rules = NULL;
|
|
insn_table *isa = NULL;
|
|
gen_table *gen = NULL;
|
|
char *real_file_name = NULL;
|
|
int is_header = 0;
|
|
int ch;
|
|
lf *standard_out = lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
|
|
|
|
INIT_OPTIONS (options);
|
|
|
|
if (argc == 1)
|
|
{
|
|
printf ("Usage:\n");
|
|
printf ("\n");
|
|
printf (" igen <config-opts> ... <input-opts>... <output-opts>...\n");
|
|
printf ("\n");
|
|
printf ("Config options:\n");
|
|
printf ("\n");
|
|
printf (" -B <bit-size>\n");
|
|
printf ("\t Set the number of bits in an instruction (depreciated).\n");
|
|
printf ("\t This option can now be set directly in the instruction table.\n");
|
|
printf ("\n");
|
|
printf (" -D <data-structure>\n");
|
|
printf ("\t Dump the specified data structure to stdout. Valid structures include:\n");
|
|
printf ("\t processor-names - list the names of all the processors (models)\n");
|
|
printf ("\n");
|
|
printf (" -F <filter-list>\n");
|
|
printf ("\t Filter out any instructions with a non-empty flags field that contains\n");
|
|
printf ("\t a flag not listed in the <filter-list>.\n");
|
|
printf ("\n");
|
|
printf (" -H <high-bit>\n");
|
|
printf ("\t Set the number of the high (most significant) instruction bit (depreciated).\n");
|
|
printf ("\t This option can now be set directly in the instruction table.\n");
|
|
printf ("\n");
|
|
printf (" -I <icache-size>\n");
|
|
printf ("\t Specify size of the cracking instruction cache (default %d instructions).\n",
|
|
options.gen.icache_size);
|
|
printf ("\t Implies -G icache.\n");
|
|
printf ("\n");
|
|
printf (" -M <model-list>\n");
|
|
printf ("\t Filter out any instructions that do not support at least one of the listed\n");
|
|
printf ("\t models (An instructions with no model information is considered to support\n");
|
|
printf ("\n all models.).\n");
|
|
printf ("\n");
|
|
printf (" -N <nr-cpus>\n");
|
|
printf ("\t Generate a simulator supporting <nr-cpus>\n");
|
|
printf ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
|
|
printf ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
|
|
printf ("\n");
|
|
printf (" -T <mechanism>\n");
|
|
printf ("\t Override the decode mechanism specified by the decode rules\n");
|
|
printf ("\n");
|
|
printf (" -P <prefix>\n");
|
|
printf ("\t Prepend global names (except itable) with the string <prefix>.\n");
|
|
printf ("\t Specify -P <module>=<prefix> to set the <modules> prefix.\n");
|
|
printf ("\n");
|
|
printf (" -Werror\n");
|
|
printf ("\t Make warnings errors\n");
|
|
printf ("\n");
|
|
printf (" -G [!]<gen-option>\n");
|
|
printf ("\t Any of the following options:\n");
|
|
printf ("\n");
|
|
printf ("\t decode-duplicate - Override the decode rules, forcing the duplication of\n");
|
|
printf ("\t semantic functions\n");
|
|
printf ("\t decode-combine - Combine any duplicated entries within a table\n");
|
|
printf ("\t decode-zero-reserved - Override the decode rules, forcing reserved bits to be\n");
|
|
printf ("\t treated as zero.\n");
|
|
printf ("\t decode-switch-is-goto - Overfide the padded-switch code type as a goto-switch\n");
|
|
printf ("\n");
|
|
printf ("\t gen-conditional-issue - conditionally issue each instruction\n");
|
|
printf ("\t gen-delayed-branch - need both cia and nia passed around\n");
|
|
printf ("\t gen-direct-access - use #defines to directly access values\n");
|
|
printf ("\t gen-zero-r<N> - arch assumes GPR(<N>) == 0, keep it that way\n");
|
|
printf ("\t gen-icache - generate an instruction cracking cache\n");
|
|
printf ("\t gen-insn-in-icache - save original instruction when cracking\n");
|
|
printf ("\t gen-multi-sim - generate multiple simulators - one per model\n");
|
|
printf ("\t By default, a single simulator that will\n");
|
|
printf ("\t execute any instruction is generated\n");
|
|
printf ("\t gen-multi-word - generate code allowing for multi-word insns\n");
|
|
printf ("\t gen-semantic-icache - include semantic code in cracking functions\n");
|
|
printf ("\t gen-slot-verification - perform slot verification as part of decode\n");
|
|
printf ("\t gen-nia-invalid - NIA defaults to nia_invalid\n");
|
|
printf ("\t gen-nia-void - do not compute/return NIA\n");
|
|
printf ("\n");
|
|
printf ("\t trace-combine - report combined entries a rule application\n");
|
|
printf ("\t trace-entries - report entries after a rules application\n");
|
|
printf ("\t trace-rule-rejection - report each rule as rejected\n");
|
|
printf ("\t trace-rule-selection - report each rule as selected\n");
|
|
printf ("\n");
|
|
printf ("\t field-widths - instruction formats specify widths (depreciated)\n");
|
|
printf ("\t By default, an instruction format specifies bit\n");
|
|
printf ("\t positions\n");
|
|
printf ("\t This option can now be set directly in the\n");
|
|
printf ("\t instruction table\n");
|
|
printf ("\t jumps - use jumps instead of function calls\n");
|
|
printf ("\t omit-line-numbers - do not include line number information in the output\n");
|
|
printf ("\n");
|
|
printf ("Input options:\n");
|
|
printf ("\n");
|
|
printf (" -k <cache-rules> (depreciated)\n");
|
|
printf (" -o <decode-rules>\n");
|
|
printf (" -i <instruction-table>\n");
|
|
printf ("\n");
|
|
printf ("Output options:\n");
|
|
printf ("\n");
|
|
printf (" -x Perform expansion (required)\n");
|
|
printf (" -n <real-name> Specify the real name of the next output file\n");
|
|
printf (" -h Generate the header (.h) file rather than the body (.c)\n");
|
|
printf (" -c <output-file> output icache\n");
|
|
printf (" -d <output-file> output idecode\n");
|
|
printf (" -e <output-file> output engine\n");
|
|
printf (" -f <output-file> output support functions\n");
|
|
printf (" -m <output-file> output model\n");
|
|
printf (" -r <output-file> output multi-sim run\n");
|
|
printf (" -s <output-file> output schematic\n");
|
|
printf (" -t <output-file> output itable\n");
|
|
}
|
|
|
|
while ((ch = getopt(argc, argv,
|
|
"B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
|
|
!= -1)
|
|
{
|
|
fprintf (stderr, " -%c ", ch);
|
|
if (optarg)
|
|
fprintf (stderr, "%s ", optarg);
|
|
fprintf (stderr, "\\\n");
|
|
|
|
switch(ch)
|
|
{
|
|
|
|
case 'M':
|
|
filter_parse (&options.model_filter, optarg);
|
|
break;
|
|
|
|
case 'D':
|
|
if (strcmp (optarg, "processor-names"))
|
|
{
|
|
char *processor;
|
|
for (processor = filter_next (options.model_filter, "");
|
|
processor != NULL;
|
|
processor = filter_next (options.model_filter, processor))
|
|
lf_printf (standard_out, "%s\n", processor);
|
|
}
|
|
else
|
|
error (NULL, "Unknown data structure %s, not dumped\n", optarg);
|
|
break;
|
|
|
|
case 'F':
|
|
filter_parse (&options.flags_filter, optarg);
|
|
break;
|
|
|
|
case 'I':
|
|
options.gen.icache_size = a2i (optarg);
|
|
options.gen.icache = 1;
|
|
break;
|
|
|
|
case 'B':
|
|
options.insn_bit_size = a2i (optarg);
|
|
if (options.insn_bit_size <= 0
|
|
|| options.insn_bit_size > max_insn_bit_size)
|
|
{
|
|
error (NULL, "Instruction bitsize must be in range 1..%d\n",
|
|
max_insn_bit_size);
|
|
}
|
|
if (options.hi_bit_nr != options.insn_bit_size - 1
|
|
&& options.hi_bit_nr != 0)
|
|
{
|
|
error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
|
|
}
|
|
break;
|
|
|
|
case 'H':
|
|
options.hi_bit_nr = a2i (optarg);
|
|
if (options.hi_bit_nr != options.insn_bit_size - 1
|
|
&& options.hi_bit_nr != 0)
|
|
{
|
|
error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
|
|
}
|
|
break;
|
|
|
|
case 'N':
|
|
options.gen.smp = a2i (optarg);
|
|
break;
|
|
|
|
case 'P':
|
|
{
|
|
igen_prefix_name *names;
|
|
char *chp;
|
|
chp = strchr (optarg, '=');
|
|
if (chp == NULL)
|
|
{
|
|
names = &options.prefix.global;
|
|
chp = optarg;
|
|
}
|
|
else
|
|
{
|
|
chp = chp + 1; /* skip `=' */
|
|
if (strncmp (optarg, "global=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.global;
|
|
}
|
|
if (strncmp (optarg, "engine=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.engine;
|
|
}
|
|
if (strncmp (optarg, "icache=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.icache;
|
|
}
|
|
if (strncmp (optarg, "idecode=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.idecode;
|
|
}
|
|
if (strncmp (optarg, "itable=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.itable;
|
|
}
|
|
if (strncmp (optarg, "semantics=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.semantics;
|
|
}
|
|
if (strncmp (optarg, "support=", chp - optarg) == 0)
|
|
{
|
|
names = &options.prefix.support;
|
|
}
|
|
else
|
|
{
|
|
names = NULL;
|
|
error (NULL, "Prefix `%s' unreconized\n", optarg);
|
|
}
|
|
}
|
|
names->name = strdup (chp);
|
|
names->uname = strdup (chp);
|
|
chp = names->uname;
|
|
while (*chp) {
|
|
if (islower(*chp))
|
|
*chp = toupper(*chp);
|
|
chp++;
|
|
}
|
|
if (names == &options.prefix.global)
|
|
{
|
|
options.prefix.engine = options.prefix.global;
|
|
options.prefix.icache = options.prefix.global;
|
|
options.prefix.idecode = options.prefix.global;
|
|
/* options.prefix.itable = options.prefix.global; */
|
|
options.prefix.semantics = options.prefix.global;
|
|
options.prefix.support = options.prefix.global;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'W':
|
|
{
|
|
if (strcmp (optarg, "error") == 0)
|
|
options.warning = error;
|
|
else
|
|
error (NULL, "Unknown -W argument `%s'\n", optarg);
|
|
break;
|
|
}
|
|
|
|
|
|
case 'G':
|
|
if (strcmp (optarg, "decode-duplicate") == 0)
|
|
{
|
|
options.decode.duplicate = 1;
|
|
}
|
|
else if (strcmp (optarg, "decode-combine") == 0)
|
|
{
|
|
options.decode.combine = 1;
|
|
}
|
|
else if (strcmp (optarg, "decode-zero-reserved") == 0)
|
|
{
|
|
options.decode.zero_reserved = 1;
|
|
}
|
|
|
|
else if (strcmp (optarg, "gen-conditional-issue") == 0)
|
|
{
|
|
options.gen.conditional_issue = 1;
|
|
}
|
|
else if (strcmp (optarg, "conditional-issue") == 0)
|
|
{
|
|
options.gen.conditional_issue = 1;
|
|
options.warning (NULL, "Option conditional-issue replaced by gen-conditional-issue\n");
|
|
}
|
|
else if (strcmp (optarg, "gen-delayed-branch") == 0)
|
|
{
|
|
options.gen.delayed_branch = 1;
|
|
}
|
|
else if (strcmp (optarg, "delayed-branch") == 0)
|
|
{
|
|
options.gen.delayed_branch = 1;
|
|
options.warning (NULL, "Option delayed-branch replaced by gen-delayed-branch\n");
|
|
}
|
|
else if (strcmp (optarg, "gen-direct-access") == 0)
|
|
{
|
|
options.gen.direct_access = 1;
|
|
}
|
|
else if (strcmp (optarg, "direct-access") == 0)
|
|
{
|
|
options.gen.direct_access = 1;
|
|
options.warning (NULL, "Option direct-access replaced by gen-direct-access\n");
|
|
}
|
|
else if (strncmp (optarg, "gen-zero-r", strlen ("gen-zero-r")) == 0)
|
|
{
|
|
options.gen.zero_reg = 1;
|
|
options.gen.zero_reg_nr = atoi (optarg + strlen ("gen-zero-r"));
|
|
}
|
|
else if (strncmp (optarg, "zero-r", strlen ("zero-r")) == 0)
|
|
{
|
|
options.gen.zero_reg = 1;
|
|
options.gen.zero_reg_nr = atoi (optarg + strlen ("zero-r"));
|
|
options.warning (NULL, "Option zero-r<N> replaced by gen-zero-r<N>\n");
|
|
}
|
|
else if (strcmp (optarg, "gen-icache") == 0)
|
|
{
|
|
options.gen.icache = 1;
|
|
}
|
|
else if (strcmp (optarg, "gen-insn-in-icache") == 0)
|
|
{
|
|
options.gen.insn_in_icache = 1;
|
|
}
|
|
else if (strcmp (optarg, "gen-multi-sim") == 0)
|
|
{
|
|
options.gen.multi_sim = 1;
|
|
}
|
|
else if (strcmp (optarg, "gen-multi-word") == 0)
|
|
{
|
|
options.gen.multi_word = 1;
|
|
}
|
|
else if (strcmp (optarg, "gen-semantic-icache") == 0)
|
|
{
|
|
options.gen.semantic_icache = 1;
|
|
}
|
|
else if (strcmp (optarg, "gen-slot-verification") == 0)
|
|
{
|
|
options.gen.slot_verification = 1;
|
|
}
|
|
else if (strcmp (optarg, "verify-slot") == 0)
|
|
{
|
|
options.gen.slot_verification = 1;
|
|
options.warning (NULL, "Option verify-slot replaced by gen-slot-verification\n");
|
|
}
|
|
else if (strcmp (optarg, "gen-nia-invalid") == 0)
|
|
{
|
|
options.gen.nia = nia_is_invalid;
|
|
}
|
|
else if (strcmp (optarg, "default-nia-minus-one") == 0)
|
|
{
|
|
options.gen.nia = nia_is_invalid;
|
|
options.warning (NULL, "Option default-nia-minus-one replaced by gen-nia-invalid\n");
|
|
}
|
|
else if (strcmp (optarg, "gen-nia-void") == 0)
|
|
{
|
|
options.gen.nia = nia_is_void;
|
|
}
|
|
else if (strcmp (optarg, "trace-combine") == 0)
|
|
{
|
|
options.trace.combine = 1;
|
|
}
|
|
else if (strcmp (optarg, "trace-entries") == 0)
|
|
{
|
|
options.trace.entries = 1;
|
|
}
|
|
else if (strcmp (optarg, "trace-rule-rejection") == 0)
|
|
{
|
|
options.trace.rule_rejection = 1;
|
|
}
|
|
else if (strcmp (optarg, "trace-rule-selection") == 0)
|
|
{
|
|
options.trace.rule_selection = 1;
|
|
}
|
|
else if (strcmp (optarg, "jumps") == 0)
|
|
{
|
|
options.gen.code = generate_jumps;
|
|
}
|
|
else if (strcmp (optarg, "field-widths") == 0)
|
|
{
|
|
options.insn_specifying_widths = 1;
|
|
}
|
|
else if (strcmp (optarg, "omit-line-numbers") == 0)
|
|
{
|
|
file_references = lf_omit_references;
|
|
}
|
|
else
|
|
error (NULL, "Unknown option %s\n", optarg);
|
|
break;
|
|
|
|
case 'i':
|
|
isa = load_insn_table (optarg, cache_rules);
|
|
if (isa->illegal_insn == NULL)
|
|
error (NULL, "illegal-instruction missing from insn table\n");
|
|
break;
|
|
|
|
case 'x':
|
|
gen = do_gen (isa, decode_rules);
|
|
break;
|
|
|
|
case 'o':
|
|
decode_rules = load_decode_table (optarg);
|
|
break;
|
|
|
|
case 'k':
|
|
if (isa != NULL)
|
|
error (NULL, "Cache file must appear before the insn file\n");
|
|
cache_rules = load_cache_table (optarg);
|
|
break;
|
|
|
|
case 'n':
|
|
real_file_name = strdup(optarg);
|
|
break;
|
|
|
|
case 'h':
|
|
is_header = 1;
|
|
break;
|
|
|
|
case 'c':
|
|
case 'd':
|
|
case 'e':
|
|
case 'f':
|
|
case 'm':
|
|
case 'r':
|
|
case 's':
|
|
case 't':
|
|
{
|
|
lf *file = lf_open(optarg, real_file_name, file_references,
|
|
(is_header ? lf_is_h : lf_is_c),
|
|
argv[0]);
|
|
if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
|
|
{
|
|
options.warning (NULL, "Explicitly generate tables with -x option\n");
|
|
gen = do_gen (isa, decode_rules);
|
|
}
|
|
lf_print__file_start(file);
|
|
switch (ch)
|
|
{
|
|
case 'm':
|
|
if (is_header)
|
|
gen_model_h (file, isa);
|
|
else
|
|
gen_model_c (file, isa);
|
|
break;
|
|
case 't':
|
|
if (is_header)
|
|
gen_itable_h (file, isa);
|
|
else
|
|
gen_itable_c (file, isa);
|
|
break;
|
|
case 'f':
|
|
if (is_header)
|
|
gen_support_h (file, isa);
|
|
else
|
|
gen_support_c (file, isa);
|
|
break;
|
|
case 'r':
|
|
if (is_header)
|
|
options.warning (NULL, "-hr option ignored\n");
|
|
else
|
|
gen_run_c (file, gen);
|
|
break;
|
|
case 's':
|
|
if(is_header)
|
|
gen_semantics_h (file, gen->semantics, isa->max_nr_words);
|
|
else
|
|
gen_semantics_c (file, gen->semantics, isa->caches);
|
|
break;
|
|
case 'd':
|
|
if (is_header)
|
|
gen_idecode_h (file, gen, isa, cache_rules);
|
|
else
|
|
gen_idecode_c (file, gen, isa, cache_rules);
|
|
break;
|
|
case 'e':
|
|
if (is_header)
|
|
gen_engine_h (file, gen, isa, cache_rules);
|
|
else
|
|
gen_engine_c (file, gen, isa, cache_rules);
|
|
break;
|
|
case 'c':
|
|
if (is_header)
|
|
gen_icache_h (file,
|
|
gen->semantics,
|
|
isa->functions,
|
|
isa->max_nr_words);
|
|
else
|
|
gen_icache_c (file,
|
|
gen->semantics,
|
|
isa->functions,
|
|
cache_rules);
|
|
break;
|
|
}
|
|
lf_print__file_finish(file);
|
|
lf_close(file);
|
|
is_header = 0;
|
|
}
|
|
real_file_name = NULL;
|
|
break;
|
|
default:
|
|
ERROR ("Bad switch");
|
|
}
|
|
}
|
|
return (0);
|
|
}
|