652 lines
17 KiB
C
652 lines
17 KiB
C
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/* 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 "ld-decode.h"
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#include "ld-cache.h"
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#include "ld-insn.h"
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#include "igen.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-support.h"
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int hi_bit_nr = 0;
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int insn_bit_size = default_insn_bit_size;
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int insn_specifying_widths = 0;
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const char *global_name_prefix = "";
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const char *global_uname_prefix = "";
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int code = generate_calls;
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int generate_expanded_instructions;
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int icache_size = 1024;
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int generate_smp;
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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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{
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int nr;
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if ((code & generate_with_icache))
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nr = lf_printf(file, "SIM_DESC sd,\n %sidecode_cache *cache_entry,\n address_word cia",
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global_name_prefix);
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else if (generate_smp)
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nr = lf_printf(file, "sim_cpu *cpu,\n %sinstruction_word instruction,\n address_word cia",
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global_name_prefix);
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else
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nr = lf_printf(file, "SIM_DESC sd,\n %sinstruction_word instruction,\n address_word cia",
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global_name_prefix);
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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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{
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int nr;
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if ((code & generate_with_icache))
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nr = lf_printf(file, "sd, cache_entry, cia");
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else if (generate_smp)
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nr = lf_printf(file, "cpu, instruction, cia");
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else
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nr = lf_printf(file, "sd, instruction, cia");
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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;
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nr = lf_printf(file, "address_word");
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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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{
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int nr = 0;
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if (generate_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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nr += lf_printf(file, " %sinstruction_word instruction,\n", global_name_prefix);
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nr += lf_printf(file, " address_word cia,\n");
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nr += lf_printf(file, " %sidecode_cache *cache_entry", global_name_prefix);
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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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{
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int nr;
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if (generate_smp)
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nr = lf_printf(file, "cpu, instruction, cia, cache_entry");
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else
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nr = lf_printf(file, "sd, instruction, 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 ((code & generate_with_semantic_icache))
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nr = print_semantic_function_type(file);
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else
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nr = lf_printf(file, "%sidecode_semantic *", global_name_prefix);
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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_insn_bits(lf *file, insn_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 += print_insn_bits(file, bits->last);
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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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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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insn_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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case function_name_prefix_semantics:
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nr += lf_putstr(file, global_name_prefix);
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nr += lf_putstr(file, "semantic_");
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break;
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case function_name_prefix_idecode:
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nr += lf_putstr(file, global_name_prefix);
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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_putstr(file, "itable_");
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break;
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case function_name_prefix_icache:
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nr += lf_putstr(file, global_name_prefix);
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nr += lf_putstr(file, "icache_");
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break;
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default:
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break;
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}
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/* the function name */
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{
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const char *pos;
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for (pos = basename;
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*pos != '\0';
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pos++) {
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switch (*pos) {
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case '/':
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case '-':
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break;
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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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}
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/* the suffix */
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if (generate_expanded_instructions)
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nr += print_insn_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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insn_bits *expanded_bits,
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table_entry *file_entry)
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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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file_entry->fields[insn_name],
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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 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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file_entry->fields[insn_name],
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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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void
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print_itrace(lf *file,
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table_entry *file_entry,
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int idecode)
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{
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const char *object = 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", object);
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lf_printf(file, " trace_printf (CPU,\n");
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lf_printf(file, " \"%s:%d:0x%%08lx:%%s\\n\", %s, %s);\n",
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filter_filename(file_entry->file_name),
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file_entry->line_nr,
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"(long)cia",
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"itable[MY_INDEX].name");
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lf_printf(file, "}\n");
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lf_indent_suppress(file);
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lf_printf(file, "#endif\n");
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}
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/****************************************************************/
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static void
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gen_semantics_h(insn_table *table,
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lf *file,
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igen_code generate)
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{
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lf_printf(file, "typedef ");
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print_semantic_function_type(file);
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lf_printf(file, " %sidecode_semantic\n(", global_name_prefix);
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print_semantic_function_formal(file);
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lf_printf(file, ");\n");
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lf_printf(file, "\n");
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if ((code & generate_calls)) {
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if (generate_expanded_instructions)
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insn_table_traverse_tree(table,
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file, NULL,
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1,
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NULL, /* start */
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print_semantic_declaration, /* leaf */
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NULL, /* end */
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NULL); /* padding */
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else
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insn_table_traverse_insn(table,
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file, NULL,
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print_semantic_declaration);
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}
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else {
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lf_print__this_file_is_empty(file);
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}
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}
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static void
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gen_semantics_c(insn_table *table,
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cache_table *cache_rules,
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lf *file,
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igen_code generate)
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{
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if ((code & generate_calls)) {
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lf_printf(file, "\n");
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lf_printf(file, "#include \"sim-main.h\"\n");
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lf_printf(file, "#include \"%sidecode.h\"\n", global_name_prefix);
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lf_printf(file, "#include \"%ssemantics.h\"\n", global_name_prefix);
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lf_printf(file, "#include \"%ssupport.h\"\n", global_name_prefix);
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lf_printf(file, "\n");
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if (generate_expanded_instructions)
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insn_table_traverse_tree(table,
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file, cache_rules,
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1,
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NULL, /* start */
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print_semantic_definition, /* leaf */
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NULL, /* end */
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NULL); /* padding */
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else
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insn_table_traverse_insn(table,
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file, cache_rules,
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print_semantic_definition);
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}
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else {
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lf_print__this_file_is_empty(file);
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}
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}
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/****************************************************************/
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static void
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gen_icache_h(insn_table *table,
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lf *file,
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igen_code generate)
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{
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lf_printf(file, "typedef ");
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print_icache_function_type(file);
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lf_printf(file, " %sidecode_icache\n(", global_name_prefix);
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print_icache_function_formal(file);
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lf_printf(file, ");\n");
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lf_printf(file, "\n");
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if ((code & generate_calls)
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&& (code & generate_with_icache)) {
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insn_table_traverse_function(table,
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file, NULL,
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print_icache_internal_function_declaration);
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if (generate_expanded_instructions)
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insn_table_traverse_tree(table,
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file, NULL,
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1,
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NULL, /* start */
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print_icache_declaration, /* leaf */
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NULL, /* end */
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NULL); /* padding */
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else
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insn_table_traverse_insn(table,
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file, NULL,
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print_icache_declaration);
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}
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else {
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lf_print__this_file_is_empty(file);
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}
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}
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static void
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gen_icache_c(insn_table *table,
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cache_table *cache_rules,
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lf *file,
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igen_code generate)
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{
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/* output `internal' invalid/floating-point unavailable functions
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where needed */
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if ((code & generate_calls)
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&& (code & generate_with_icache)) {
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lf_printf(file, "\n");
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lf_printf(file, "#include \"cpu.h\"\n");
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lf_printf(file, "#include \"idecode.h\"\n");
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lf_printf(file, "#include \"semantics.h\"\n");
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lf_printf(file, "#include \"icache.h\"\n");
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lf_printf(file, "#include \"support.h\"\n");
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|
|
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;
|
||
|
|
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-flag> eg -F 32 to include 32bit instructions\n");
|
||
|
|
printf(" -I <icache-size> Specify size of cracking cache\n");
|
||
|
|
printf(" -B <bit-size> Set the number of bits in an instruction\n");
|
||
|
|
printf(" -H <high-bit> Set the number of the high (msb) instruction bit\n");
|
||
|
|
printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n");
|
||
|
|
printf(" -T <mechanism> Override the decode mechanism specified by the decode rules\n");
|
||
|
|
printf(" -P <prefix> Prepend all functions with the specified prefix\n");
|
||
|
|
printf(" -G <gen-option> Any of the following options:\n");
|
||
|
|
printf(" field-widths - instruction table specifies widths (not ofsesets)\n");
|
||
|
|
printf(" jumps - use jumps instead of function calls\n");
|
||
|
|
printf(" duplicate - expand (duplicate) semantic functions\n");
|
||
|
|
printf(" omit-line-numbers - do not include line nr info in output\n");
|
||
|
|
printf(" direct-access - use #defines to directly access values\n");
|
||
|
|
printf(" icache - generate an instruction cracking cache\n");
|
||
|
|
printf(" semantic-icache - include semantic code in cracking functions\n");
|
||
|
|
printf(" insn-in-icache - save original instruction when cracking\n");
|
||
|
|
printf(" default-nia-minus-one - instead of cia + insn-size\n");
|
||
|
|
printf(" conditional-issue - conditionally issue each instruction\n");
|
||
|
|
printf(" validate-slot - perform slot verification as part of decode\n");
|
||
|
|
printf("\n");
|
||
|
|
printf("Input options:\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 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(" -e <output-file> output engine\n");
|
||
|
|
printf(" -f <output-file> output support functions\n");
|
||
|
|
printf(" -m <output-file> output model\n");
|
||
|
|
printf(" -s <output-file> output schematic\n");
|
||
|
|
printf(" -t <output-file> output itable\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
while ((ch = getopt(argc, argv,
|
||
|
|
"F:I:B:H:N:T:P:G:o:k:i:n:hc:d:e:m:s:t:f:"))
|
||
|
|
!= -1) {
|
||
|
|
fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : ""));
|
||
|
|
|
||
|
|
switch(ch) {
|
||
|
|
|
||
|
|
case 'F':
|
||
|
|
filters = new_filter(optarg, filters);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'I':
|
||
|
|
icache_size = a2i(optarg);
|
||
|
|
code |= generate_with_icache;
|
||
|
|
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 'N':
|
||
|
|
generate_smp = a2i(optarg);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'T':
|
||
|
|
force_decode_gen_type(optarg);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'P':
|
||
|
|
{
|
||
|
|
char *chp;
|
||
|
|
global_name_prefix = strdup(optarg);
|
||
|
|
chp = strdup(optarg);
|
||
|
|
global_uname_prefix = chp;
|
||
|
|
while (*chp) {
|
||
|
|
if (islower(*chp))
|
||
|
|
*chp = toupper(*chp);
|
||
|
|
chp++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'G':
|
||
|
|
if (strcmp(optarg, "jumps") == 0) {
|
||
|
|
code &= ~generate_calls;
|
||
|
|
code |= generate_jumps;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "field-widths") == 0) {
|
||
|
|
insn_specifying_widths = 1;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "duplicate") == 0) {
|
||
|
|
generate_expanded_instructions = 1;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "omit-line-numbers") == 0) {
|
||
|
|
file_references = lf_omit_references;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "direct-access") == 0) {
|
||
|
|
code |= generate_with_direct_access;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "icache") == 0) {
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "semantic-icache") == 0) {
|
||
|
|
code |= generate_with_icache;
|
||
|
|
code |= generate_with_semantic_icache;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "insn-in-icache") == 0) {
|
||
|
|
code |= generate_with_icache;
|
||
|
|
code |= generate_with_insn_in_icache;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "default-nia-minus-one") == 0) {
|
||
|
|
code |= generate_with_semantic_returning_modified_nia_only;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "conditional-issue") == 0) {
|
||
|
|
code |= generate_with_semantic_conditional_issue;
|
||
|
|
}
|
||
|
|
else if (strcmp(optarg, "verify-slot") == 0) {
|
||
|
|
code |= generate_with_idecode_slot_verification;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
error("Unknown option %s", optarg);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'i':
|
||
|
|
if (decode_rules == NULL || cache_rules == NULL) {
|
||
|
|
fprintf(stderr, "Must specify decode and cache tables\n");
|
||
|
|
exit (1);
|
||
|
|
}
|
||
|
|
instructions = load_insn_table(optarg, decode_rules, filters);
|
||
|
|
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 'e':
|
||
|
|
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 'e':
|
||
|
|
if (is_header)
|
||
|
|
gen_engine_h(file, instructions, cache_rules);
|
||
|
|
else
|
||
|
|
gen_engine_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;
|
||
|
|
}
|