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jeremybenn |
/* This file is part of the program psim.
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Copyright 1994, 1995, 1996, 1997, 2003 Andrew Cagney
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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 "build-config.h"
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#include "filter.h"
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#include "ld-cache.h"
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#include "ld-decode.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;
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int insn_bit_size = max_insn_bit_size;
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igen_code 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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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, "semantic_");
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break;
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case function_name_prefix_idecode:
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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, "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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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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lf_print__external_reference(file, file_entry->line_nr, file_entry->file_name);
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lf_printf(file, "ITRACE(trace_%s, (\"%s %s\\n\"));\n",
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(idecode ? "idecode" : "semantics"),
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(idecode ? "idecode" : "semantics"),
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file_entry->fields[insn_name]);
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lf_print__internal_reference(file);
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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 %s idecode_semantic\n(%s);\n",
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SEMANTIC_FUNCTION_TYPE,
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SEMANTIC_FUNCTION_FORMAL);
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lf_printf(file, "\n");
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if ((code & generate_calls)) {
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lf_printf(file, "extern int option_mpc860c0;\n");
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lf_printf(file, "#define PAGE_SIZE 0x1000\n");
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lf_printf(file, "\n");
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lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n");
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lf_printf(file, "semantic_init(device* root);\n");
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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, 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 \"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, "#ifdef HAVE_COMMON_FPU\n");
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lf_printf(file, "#include \"sim-inline.h\"\n");
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lf_printf(file, "#include \"sim-fpu.h\"\n");
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lf_printf(file, "#endif\n");
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lf_printf(file, "#include \"support.h\"\n");
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lf_printf(file, "\n");
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lf_printf(file, "int option_mpc860c0 = 0;\n");
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lf_printf(file, "\n");
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lf_printf(file, "PSIM_EXTERN_SEMANTICS(void)\n");
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lf_printf(file, "semantic_init(device* root)\n");
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lf_printf(file, "{\n");
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lf_printf(file, " option_mpc860c0 = 0;\n");
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lf_printf(file, " if (tree_find_property(root, \"/options/mpc860c0\"))\n");
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lf_printf(file, " option_mpc860c0 = tree_find_integer_property(root, \"/options/mpc860c0\");\n");
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lf_printf(file, " option_mpc860c0 *= 4; /* convert word count to byte count */\n");
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lf_printf(file, "}\n");
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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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259 |
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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 %s idecode_icache\n(%s);\n",
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ICACHE_FUNCTION_TYPE,
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ICACHE_FUNCTION_FORMAL);
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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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282 |
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print_icache_declaration, /* leaf */
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283 |
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NULL, /* end */
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284 |
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NULL); /* padding */
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285 |
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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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290 |
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}
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291 |
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else {
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lf_print__this_file_is_empty(file);
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}
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294 |
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}
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295 |
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296 |
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static void
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297 |
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gen_icache_c(insn_table *table,
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298 |
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cache_table *cache_rules,
|
299 |
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lf *file,
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300 |
|
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igen_code generate)
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301 |
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{
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302 |
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/* output `internal' invalid/floating-point unavailable functions
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303 |
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where needed */
|
304 |
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if ((code & generate_calls)
|
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&& (code & generate_with_icache)) {
|
306 |
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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");
|
309 |
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lf_printf(file, "#include \"semantics.h\"\n");
|
310 |
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lf_printf(file, "#include \"icache.h\"\n");
|
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lf_printf(file, "#ifdef HAVE_COMMON_FPU\n");
|
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lf_printf(file, "#include \"sim-inline.h\"\n");
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lf_printf(file, "#include \"sim-fpu.h\"\n");
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lf_printf(file, "#endif\n");
|
315 |
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lf_printf(file, "#include \"support.h\"\n");
|
316 |
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lf_printf(file, "\n");
|
317 |
|
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insn_table_traverse_function(table,
|
318 |
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file, NULL,
|
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print_icache_internal_function_definition);
|
320 |
|
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lf_printf(file, "\n");
|
321 |
|
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if (generate_expanded_instructions)
|
322 |
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insn_table_traverse_tree(table,
|
323 |
|
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file, cache_rules,
|
324 |
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1,
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325 |
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NULL, /* start */
|
326 |
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print_icache_definition, /* leaf */
|
327 |
|
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NULL, /* end */
|
328 |
|
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NULL); /* padding */
|
329 |
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else
|
330 |
|
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insn_table_traverse_insn(table,
|
331 |
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file, cache_rules,
|
332 |
|
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print_icache_definition);
|
333 |
|
|
|
334 |
|
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}
|
335 |
|
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else {
|
336 |
|
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lf_print__this_file_is_empty(file);
|
337 |
|
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}
|
338 |
|
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}
|
339 |
|
|
|
340 |
|
|
|
341 |
|
|
/****************************************************************/
|
342 |
|
|
|
343 |
|
|
|
344 |
|
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int
|
345 |
|
|
main(int argc,
|
346 |
|
|
char **argv,
|
347 |
|
|
char **envp)
|
348 |
|
|
{
|
349 |
|
|
cache_table *cache_rules = NULL;
|
350 |
|
|
lf_file_references file_references = lf_include_references;
|
351 |
|
|
decode_table *decode_rules = NULL;
|
352 |
|
|
filter *filters = NULL;
|
353 |
|
|
insn_table *instructions = NULL;
|
354 |
|
|
table_include *includes = NULL;
|
355 |
|
|
char *real_file_name = NULL;
|
356 |
|
|
int is_header = 0;
|
357 |
|
|
int ch;
|
358 |
|
|
|
359 |
|
|
if (argc == 1) {
|
360 |
|
|
printf("Usage:\n");
|
361 |
|
|
printf(" igen <config-opts> ... <input-opts>... <output-opts>...\n");
|
362 |
|
|
printf("Config options:\n");
|
363 |
|
|
printf(" -F <filter-out-flag> eg -F 64 to skip 64bit instructions\n");
|
364 |
|
|
printf(" -E Expand (duplicate) semantic functions\n");
|
365 |
|
|
printf(" -I <icache-size> Generate cracking cache version\n");
|
366 |
|
|
printf(" -C Include semantics in cache functions\n");
|
367 |
|
|
printf(" -S Include insn (instruction) in icache\n");
|
368 |
|
|
printf(" -R Use defines to reference cache vars\n");
|
369 |
|
|
printf(" -L Supress line numbering in output files\n");
|
370 |
|
|
printf(" -B <bit-size> Set the number of bits in an instruction\n");
|
371 |
|
|
printf(" -H <high-bit> Set the nr of the high (msb bit)\n");
|
372 |
|
|
printf(" -N <nr-cpus> Specify the max number of cpus the simulation will support\n");
|
373 |
|
|
printf(" -J Use jumps instead of function calls\n");
|
374 |
|
|
printf(" -T <mechanism> Override the mechanism used to decode an instruction\n");
|
375 |
|
|
printf(" using <mechanism> instead of what was specified in the\n");
|
376 |
|
|
printf(" decode-rules input file\n");
|
377 |
|
|
printf("\n");
|
378 |
|
|
printf("Input options (ucase version also dumps loaded table):\n");
|
379 |
|
|
printf(" -o <decode-rules>\n");
|
380 |
|
|
printf(" -k <cache-rules>\n");
|
381 |
|
|
printf(" -i <instruction-table>\n");
|
382 |
|
|
printf("\n");
|
383 |
|
|
printf("Output options:\n");
|
384 |
|
|
printf(" -n <real-name> Specify the real name of for the next output file\n");
|
385 |
|
|
printf(" -h Generate header file\n");
|
386 |
|
|
printf(" -c <output-file> output icache\n");
|
387 |
|
|
printf(" -d <output-file> output idecode\n");
|
388 |
|
|
printf(" -m <output-file> output model\n");
|
389 |
|
|
printf(" -s <output-file> output schematic\n");
|
390 |
|
|
printf(" -t <output-file> output itable\n");
|
391 |
|
|
printf(" -f <output-file> output support functions\n");
|
392 |
|
|
}
|
393 |
|
|
|
394 |
|
|
while ((ch = getopt(argc, argv,
|
395 |
|
|
"F:EI:RSLJT:CB:H:N:o:k:i:n:hc:d:m:s:t:f:"))
|
396 |
|
|
!= -1) {
|
397 |
|
|
fprintf(stderr, "\t-%c %s\n", ch, (optarg ? optarg : ""));
|
398 |
|
|
switch(ch) {
|
399 |
|
|
case 'C':
|
400 |
|
|
code |= generate_with_icache;
|
401 |
|
|
code |= generate_with_semantic_icache;
|
402 |
|
|
break;
|
403 |
|
|
case 'S':
|
404 |
|
|
code |= generate_with_icache;
|
405 |
|
|
code |= generate_with_insn_in_icache;
|
406 |
|
|
break;
|
407 |
|
|
case 'L':
|
408 |
|
|
file_references = lf_omit_references;
|
409 |
|
|
break;
|
410 |
|
|
case 'E':
|
411 |
|
|
generate_expanded_instructions = 1;
|
412 |
|
|
break;
|
413 |
|
|
case 'G':
|
414 |
|
|
{
|
415 |
|
|
int enable_p;
|
416 |
|
|
char *argp;
|
417 |
|
|
if (strncmp (optarg, "no-", strlen ("no-")) == 0)
|
418 |
|
|
{
|
419 |
|
|
argp = optarg + strlen ("no-");
|
420 |
|
|
enable_p = 0;
|
421 |
|
|
}
|
422 |
|
|
else if (strncmp (optarg, "!", strlen ("!")) == 0)
|
423 |
|
|
{
|
424 |
|
|
argp = optarg + strlen ("no-");
|
425 |
|
|
enable_p = 0;
|
426 |
|
|
}
|
427 |
|
|
else
|
428 |
|
|
{
|
429 |
|
|
argp = optarg;
|
430 |
|
|
enable_p = 1;
|
431 |
|
|
}
|
432 |
|
|
if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
|
433 |
|
|
{
|
434 |
|
|
switch (argp[strlen ("gen-icache")])
|
435 |
|
|
{
|
436 |
|
|
case '=':
|
437 |
|
|
icache_size = atoi (argp + strlen ("gen-icache") + 1);
|
438 |
|
|
code |= generate_with_icache;
|
439 |
|
|
break;
|
440 |
|
|
case '\0':
|
441 |
|
|
code |= generate_with_icache;
|
442 |
|
|
break;
|
443 |
|
|
default:
|
444 |
|
|
error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
|
445 |
|
|
}
|
446 |
|
|
}
|
447 |
|
|
}
|
448 |
|
|
case 'I':
|
449 |
|
|
{
|
450 |
|
|
table_include **dir = &includes;
|
451 |
|
|
while ((*dir) != NULL)
|
452 |
|
|
dir = &(*dir)->next;
|
453 |
|
|
(*dir) = ZALLOC (table_include);
|
454 |
|
|
(*dir)->dir = strdup (optarg);
|
455 |
|
|
}
|
456 |
|
|
break;
|
457 |
|
|
case 'N':
|
458 |
|
|
generate_smp = a2i(optarg);
|
459 |
|
|
break;
|
460 |
|
|
case 'R':
|
461 |
|
|
code |= generate_with_direct_access;
|
462 |
|
|
break;
|
463 |
|
|
case 'B':
|
464 |
|
|
insn_bit_size = a2i(optarg);
|
465 |
|
|
ASSERT(insn_bit_size > 0 && insn_bit_size <= max_insn_bit_size
|
466 |
|
|
&& (hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0));
|
467 |
|
|
break;
|
468 |
|
|
case 'H':
|
469 |
|
|
hi_bit_nr = a2i(optarg);
|
470 |
|
|
ASSERT(hi_bit_nr == insn_bit_size-1 || hi_bit_nr == 0);
|
471 |
|
|
break;
|
472 |
|
|
case 'F':
|
473 |
|
|
filters = new_filter(optarg, filters);
|
474 |
|
|
break;
|
475 |
|
|
case 'J':
|
476 |
|
|
code &= ~generate_calls;
|
477 |
|
|
code |= generate_jumps;
|
478 |
|
|
break;
|
479 |
|
|
case 'T':
|
480 |
|
|
force_decode_gen_type(optarg);
|
481 |
|
|
break;
|
482 |
|
|
case 'i':
|
483 |
|
|
if (decode_rules == NULL) {
|
484 |
|
|
fprintf(stderr, "Must specify decode tables\n");
|
485 |
|
|
exit (1);
|
486 |
|
|
}
|
487 |
|
|
instructions = load_insn_table(optarg, decode_rules, filters, includes,
|
488 |
|
|
&cache_rules);
|
489 |
|
|
fprintf(stderr, "\texpanding ...\n");
|
490 |
|
|
insn_table_expand_insns(instructions);
|
491 |
|
|
break;
|
492 |
|
|
case 'o':
|
493 |
|
|
decode_rules = load_decode_table(optarg, hi_bit_nr);
|
494 |
|
|
break;
|
495 |
|
|
case 'k':
|
496 |
|
|
cache_rules = load_cache_table(optarg, hi_bit_nr);
|
497 |
|
|
break;
|
498 |
|
|
case 'n':
|
499 |
|
|
real_file_name = strdup(optarg);
|
500 |
|
|
break;
|
501 |
|
|
case 'h':
|
502 |
|
|
is_header = 1;
|
503 |
|
|
break;
|
504 |
|
|
case 's':
|
505 |
|
|
case 'd':
|
506 |
|
|
case 'm':
|
507 |
|
|
case 't':
|
508 |
|
|
case 'f':
|
509 |
|
|
case 'c':
|
510 |
|
|
{
|
511 |
|
|
lf *file = lf_open(optarg, real_file_name, file_references,
|
512 |
|
|
(is_header ? lf_is_h : lf_is_c),
|
513 |
|
|
argv[0]);
|
514 |
|
|
lf_print__file_start(file);
|
515 |
|
|
ASSERT(instructions != NULL);
|
516 |
|
|
switch (ch) {
|
517 |
|
|
case 's':
|
518 |
|
|
if(is_header)
|
519 |
|
|
gen_semantics_h(instructions, file, code);
|
520 |
|
|
else
|
521 |
|
|
gen_semantics_c(instructions, cache_rules, file, code);
|
522 |
|
|
break;
|
523 |
|
|
case 'd':
|
524 |
|
|
if (is_header)
|
525 |
|
|
gen_idecode_h(file, instructions, cache_rules);
|
526 |
|
|
else
|
527 |
|
|
gen_idecode_c(file, instructions, cache_rules);
|
528 |
|
|
break;
|
529 |
|
|
case 'm':
|
530 |
|
|
if (is_header)
|
531 |
|
|
gen_model_h(instructions, file);
|
532 |
|
|
else
|
533 |
|
|
gen_model_c(instructions, file);
|
534 |
|
|
break;
|
535 |
|
|
case 't':
|
536 |
|
|
if (is_header)
|
537 |
|
|
gen_itable_h(instructions, file);
|
538 |
|
|
else
|
539 |
|
|
gen_itable_c(instructions, file);
|
540 |
|
|
break;
|
541 |
|
|
case 'f':
|
542 |
|
|
if (is_header)
|
543 |
|
|
gen_support_h(instructions, file);
|
544 |
|
|
else
|
545 |
|
|
gen_support_c(instructions, file);
|
546 |
|
|
break;
|
547 |
|
|
case 'c':
|
548 |
|
|
if (is_header)
|
549 |
|
|
gen_icache_h(instructions, file, code);
|
550 |
|
|
else
|
551 |
|
|
gen_icache_c(instructions, cache_rules, file, code);
|
552 |
|
|
break;
|
553 |
|
|
}
|
554 |
|
|
lf_print__file_finish(file);
|
555 |
|
|
lf_close(file);
|
556 |
|
|
is_header = 0;
|
557 |
|
|
}
|
558 |
|
|
real_file_name = NULL;
|
559 |
|
|
break;
|
560 |
|
|
default:
|
561 |
|
|
error("unknown option\n");
|
562 |
|
|
}
|
563 |
|
|
}
|
564 |
|
|
return 0;
|
565 |
|
|
}
|