--- /dev/null
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ */
+
+
+
+#include <getopt.h>
+
+#include "misc.h"
+#include "lf.h"
+#include "table.h"
+#include "config.h"
+
+#include "filter.h"
+
+#include "ld-decode.h"
+#include "ld-cache.h"
+#include "ld-insn.h"
+
+#include "igen.h"
+
+#include "gen-model.h"
+#include "gen-icache.h"
+#include "gen-itable.h"
+#include "gen-idecode.h"
+#include "gen-semantics.h"
+#include "gen-support.h"
+
+int hi_bit_nr = 0;
+int insn_bit_size = default_insn_bit_size;
+int insn_specifying_widths = 0;
+const char *global_name_prefix = "";
+const char *global_uname_prefix = "";
+
+int code = generate_calls;
+
+int generate_expanded_instructions;
+int icache_size = 1024;
+int generate_smp;
+
+/****************************************************************/
+
+
+/* Semantic functions */
+
+int
+print_semantic_function_formal(lf *file)
+{
+ int nr;
+ if ((code & generate_with_icache))
+ nr = lf_printf(file, "SIM_DESC sd,\n %sidecode_cache *cache_entry,\n address_word cia",
+ global_name_prefix);
+ else if (generate_smp)
+ nr = lf_printf(file, "sim_cpu *cpu,\n %sinstruction_word instruction,\n address_word cia",
+ global_name_prefix);
+ else
+ nr = lf_printf(file, "SIM_DESC sd,\n %sinstruction_word instruction,\n address_word cia",
+ global_name_prefix);
+ return nr;
+}
+
+int
+print_semantic_function_actual(lf *file)
+{
+ int nr;
+ if ((code & generate_with_icache))
+ nr = lf_printf(file, "sd, cache_entry, cia");
+ else if (generate_smp)
+ nr = lf_printf(file, "cpu, instruction, cia");
+ else
+ nr = lf_printf(file, "sd, instruction, cia");
+ return nr;
+}
+
+int
+print_semantic_function_type(lf *file)
+{
+ int nr;
+ nr = lf_printf(file, "address_word");
+ return nr;
+}
+
+
+/* Idecode functions */
+
+int
+print_icache_function_formal(lf *file)
+{
+ int nr = 0;
+ if (generate_smp)
+ nr += lf_printf(file, "sim_cpu *cpu,\n");
+ else
+ nr += lf_printf(file, "SIM_DESC sd,\n");
+ nr += lf_printf(file, " %sinstruction_word instruction,\n", global_name_prefix);
+ nr += lf_printf(file, " address_word cia,\n");
+ nr += lf_printf(file, " %sidecode_cache *cache_entry", global_name_prefix);
+ return nr;
+}
+
+int
+print_icache_function_actual(lf *file)
+{
+ int nr;
+ if (generate_smp)
+ nr = lf_printf(file, "cpu, instruction, cia, cache_entry");
+ else
+ nr = lf_printf(file, "sd, instruction, cia, cache_entry");
+ return nr;
+}
+
+int
+print_icache_function_type(lf *file)
+{
+ int nr;
+ if ((code & generate_with_semantic_icache))
+ nr = print_semantic_function_type(file);
+ else
+ nr = lf_printf(file, "%sidecode_semantic *", global_name_prefix);
+ return nr;
+}
+
+
+/* Function names */
+
+static int
+print_insn_bits(lf *file, insn_bits *bits)
+{
+ int nr = 0;
+ if (bits == NULL)
+ return nr;
+ nr += print_insn_bits(file, bits->last);
+ nr += lf_putchr(file, '_');
+ nr += lf_putstr(file, bits->field->val_string);
+ if (bits->opcode->is_boolean && bits->value == 0)
+ nr += lf_putint(file, bits->opcode->boolean_constant);
+ else if (!bits->opcode->is_boolean) {
+ if (bits->opcode->last < bits->field->last)
+ nr += lf_putint(file, bits->value << (bits->field->last - bits->opcode->last));
+ else
+ nr += lf_putint(file, bits->value);
+ }
+ return nr;
+}
+
+extern int
+print_function_name(lf *file,
+ const char *basename,
+ insn_bits *expanded_bits,
+ lf_function_name_prefixes prefix)
+{
+ int nr = 0;
+ /* the prefix */
+ switch (prefix) {
+ case function_name_prefix_semantics:
+ nr += lf_putstr(file, global_name_prefix);
+ nr += lf_putstr(file, "semantic_");
+ break;
+ case function_name_prefix_idecode:
+ nr += lf_putstr(file, global_name_prefix);
+ nr += lf_printf(file, "idecode_");
+ break;
+ case function_name_prefix_itable:
+ nr += lf_putstr(file, "itable_");
+ break;
+ case function_name_prefix_icache:
+ nr += lf_putstr(file, global_name_prefix);
+ nr += lf_putstr(file, "icache_");
+ break;
+ default:
+ break;
+ }
+
+ /* the function name */
+ {
+ const char *pos;
+ for (pos = basename;
+ *pos != '\0';
+ pos++) {
+ switch (*pos) {
+ case '/':
+ case '-':
+ break;
+ case ' ':
+ nr += lf_putchr(file, '_');
+ break;
+ default:
+ nr += lf_putchr(file, *pos);
+ break;
+ }
+ }
+ }
+
+ /* the suffix */
+ if (generate_expanded_instructions)
+ nr += print_insn_bits(file, expanded_bits);
+
+ return nr;
+}
+
+
+void
+print_my_defines(lf *file,
+ insn_bits *expanded_bits,
+ table_entry *file_entry)
+{
+ /* #define MY_INDEX xxxxx */
+ lf_indent_suppress(file);
+ lf_printf(file, "#undef MY_INDEX\n");
+ lf_indent_suppress(file);
+ lf_printf(file, "#define MY_INDEX ");
+ print_function_name(file,
+ file_entry->fields[insn_name],
+ NULL,
+ function_name_prefix_itable);
+ lf_printf(file, "\n");
+ /* #define MY_PREFIX xxxxxx */
+ lf_indent_suppress(file);
+ lf_printf(file, "#undef MY_PREFIX\n");
+ lf_indent_suppress(file);
+ lf_printf(file, "#define MY_PREFIX ");
+ print_function_name(file,
+ file_entry->fields[insn_name],
+ expanded_bits,
+ function_name_prefix_none);
+ lf_printf(file, "\n");
+}
+
+
+void
+print_itrace(lf *file,
+ table_entry *file_entry,
+ int idecode)
+{
+ const char *object = idecode ? "DECODE" : "INSN";
+ lf_printf(file, "\n");
+ lf_indent_suppress(file);
+ lf_printf(file, "#if defined(WITH_TRACE)\n");
+ lf_printf(file, "/* trace the instructions execution if enabled */\n");
+ lf_printf(file, "if (TRACE_%s_P (CPU)) {\n", object);
+ lf_printf(file, " trace_printf (CPU,\n");
+ lf_printf(file, " \"%s:%d:0x%%08lx:%%s\\n\", %s, %s);\n",
+ filter_filename(file_entry->file_name),
+ file_entry->line_nr,
+ "(long)cia",
+ "itable[MY_INDEX].name");
+ lf_printf(file, "}\n");
+ lf_indent_suppress(file);
+ lf_printf(file, "#endif\n");
+}
+
+
+/****************************************************************/
+
+
+static void
+gen_semantics_h(insn_table *table,
+ lf *file,
+ igen_code generate)
+{
+ lf_printf(file, "typedef ");
+ print_semantic_function_type(file);
+ lf_printf(file, " %sidecode_semantic\n(", global_name_prefix);
+ print_semantic_function_formal(file);
+ lf_printf(file, ");\n");
+ lf_printf(file, "\n");
+ if ((code & generate_calls)) {
+ if (generate_expanded_instructions)
+ insn_table_traverse_tree(table,
+ file, NULL,
+ 1,
+ NULL, /* start */
+ print_semantic_declaration, /* leaf */
+ NULL, /* end */
+ NULL); /* padding */
+ else
+ insn_table_traverse_insn(table,
+ file, NULL,
+ print_semantic_declaration);
+
+ }
+ else {
+ lf_print__this_file_is_empty(file);
+ }
+}
+
+
+static void
+gen_semantics_c(insn_table *table,
+ cache_table *cache_rules,
+ lf *file,
+ igen_code generate)
+{
+ if ((code & generate_calls)) {
+ lf_printf(file, "\n");
+ lf_printf(file, "#include \"sim-main.h\"\n");
+ lf_printf(file, "#include \"%sidecode.h\"\n", global_name_prefix);
+ lf_printf(file, "#include \"%ssemantics.h\"\n", global_name_prefix);
+ lf_printf(file, "#include \"%ssupport.h\"\n", global_name_prefix);
+ lf_printf(file, "\n");
+ if (generate_expanded_instructions)
+ insn_table_traverse_tree(table,
+ file, cache_rules,
+ 1,
+ NULL, /* start */
+ print_semantic_definition, /* leaf */
+ NULL, /* end */
+ NULL); /* padding */
+ else
+ insn_table_traverse_insn(table,
+ file, cache_rules,
+ print_semantic_definition);
+
+ }
+ else {
+ lf_print__this_file_is_empty(file);
+ }
+}
+
+
+/****************************************************************/
+
+
+static void
+gen_icache_h(insn_table *table,
+ lf *file,
+ igen_code generate)
+{
+ lf_printf(file, "typedef ");
+ print_icache_function_type(file);
+ lf_printf(file, " %sidecode_icache\n(", global_name_prefix);
+ print_icache_function_formal(file);
+ lf_printf(file, ");\n");
+ lf_printf(file, "\n");
+ if ((code & generate_calls)
+ && (code & generate_with_icache)) {
+ insn_table_traverse_function(table,
+ file, NULL,
+ print_icache_internal_function_declaration);
+ if (generate_expanded_instructions)
+ insn_table_traverse_tree(table,
+ file, NULL,
+ 1,
+ NULL, /* start */
+ print_icache_declaration, /* leaf */
+ NULL, /* end */
+ NULL); /* padding */
+ else
+ insn_table_traverse_insn(table,
+ file, NULL,
+ print_icache_declaration);
+
+ }
+ else {
+ lf_print__this_file_is_empty(file);
+ }
+}
+
+static void
+gen_icache_c(insn_table *table,
+ cache_table *cache_rules,
+ lf *file,
+ igen_code generate)
+{
+ /* output `internal' invalid/floating-point unavailable functions
+ where needed */
+ if ((code & generate_calls)
+ && (code & generate_with_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");
+ 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;
+}
projects / binutils-gdb.git / commitdiff