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-rw-r--r--sim/igen/igen.c1621
1 files changed, 0 insertions, 1621 deletions
diff --git a/sim/igen/igen.c b/sim/igen/igen.c
deleted file mode 100644
index 094f0cd43bb..00000000000
--- a/sim/igen/igen.c
+++ /dev/null
@@ -1,1621 +0,0 @@
-/* This file is part of the program psim.
-
- Copyright (C) 1994-1998, 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 "igen.h"
-
-#include "ld-insn.h"
-#include "ld-decode.h"
-#include "ld-cache.h"
-
-#include "gen.h"
-
-#include "gen-model.h"
-#include "gen-icache.h"
-#include "gen-itable.h"
-#include "gen-idecode.h"
-#include "gen-semantics.h"
-#include "gen-engine.h"
-#include "gen-support.h"
-#include "gen-engine.h"
-
-
-/****************************************************************/
-
-
-/* Semantic functions */
-
-int
-print_semantic_function_formal (lf *file,
- int nr_prefetched_words)
-{
- int nr = 0;
- int word_nr;
- if (options.gen.icache || nr_prefetched_words < 0)
- {
- nr += lf_printf (file, "SIM_DESC sd,\n");
- nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
- options.module.global.prefix.l);
- nr += lf_printf (file, "%sinstruction_address cia",
- options.module.global.prefix.l);
- }
- else if (options.gen.smp)
- {
- nr += lf_printf (file, "sim_cpu *cpu,\n");
- for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
- {
- nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
- options.module.global.prefix.l,
- word_nr);
- }
- nr += lf_printf (file, "%sinstruction_address cia",
- options.module.global.prefix.l);
- }
- else
- {
- nr += lf_printf (file, "SIM_DESC sd,\n");
- for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
- {
- nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
- options.module.global.prefix.l,
- word_nr);
- }
- nr += lf_printf (file, "%sinstruction_address cia",
- options.module.global.prefix.l);
- }
- return nr;
-}
-
-int
-print_semantic_function_actual (lf *file,
- int nr_prefetched_words)
-{
- int nr = 0;
- int word_nr;
- if (options.gen.icache || nr_prefetched_words < 0)
- {
- nr += lf_printf (file, "sd, cache_entry, cia");
- }
- else
- {
- if (options.gen.smp)
- nr += lf_printf (file, "cpu");
- else
- nr += lf_printf (file, "sd");
- for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
- nr += lf_printf (file, ", instruction_%d", word_nr);
- nr += lf_printf (file, ", cia");
- }
- return nr;
-}
-
-int
-print_semantic_function_type (lf *file)
-{
- int nr = 0;
- nr += lf_printf (file, "%sinstruction_address",
- options.module.global.prefix.l);
- return nr;
-}
-
-
-/* Idecode functions */
-
-int
-print_icache_function_formal (lf *file,
- int nr_prefetched_words)
-{
- int nr = 0;
- int word_nr;
- if (options.gen.smp)
- nr += lf_printf (file, "sim_cpu *cpu,\n");
- else
- nr += lf_printf (file, "SIM_DESC sd,\n");
- for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
- nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
- options.module.global.prefix.l, word_nr);
- nr += lf_printf (file, " %sinstruction_address cia,\n",
- options.module.global.prefix.l);
- nr += lf_printf (file, " %sidecode_cache *cache_entry",
- options.module.global.prefix.l);
- return nr;
-}
-
-int
-print_icache_function_actual (lf *file,
- int nr_prefetched_words)
-{
- int nr = 0;
- int word_nr;
- if (options.gen.smp)
- nr += lf_printf (file, "cpu");
- else
- nr += lf_printf (file, "sd");
- for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
- nr += lf_printf (file, ", instruction_%d", word_nr);
- nr += lf_printf (file, ", cia, cache_entry");
- return nr;
-}
-
-int
-print_icache_function_type (lf *file)
-{
- int nr;
- if (options.gen.semantic_icache)
- {
- nr = print_semantic_function_type (file);
- }
- else
- {
- nr = lf_printf (file, "%sidecode_semantic *",
- options.module.global.prefix.l);
- }
- return nr;
-}
-
-
-/* Function names */
-
-static int
-print_opcode_bits (lf *file,
- opcode_bits *bits)
-{
- int nr = 0;
- if (bits == NULL)
- return nr;
- 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);
- }
- nr += print_opcode_bits (file, bits->next);
- return nr;
-}
-
-static int
-print_c_name (lf *file,
- const char *name)
-{
- int nr = 0;
- const char *pos;
- for (pos = name; *pos != '\0'; pos++)
- {
- switch (*pos)
- {
- case '/':
- case '-':
- break;
- case ' ':
- case '.':
- nr += lf_putchr (file, '_');
- break;
- default:
- nr += lf_putchr (file, *pos);
- break;
- }
- }
- return nr;
-}
-
-extern int
-print_function_name (lf *file,
- const char *basename,
- const char *format_name,
- const char *model_name,
- opcode_bits *expanded_bits,
- lf_function_name_prefixes prefix)
-{
- int nr = 0;
- /* the prefix */
- switch (prefix)
- {
- case function_name_prefix_semantics:
- nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
- nr += lf_printf (file, "semantic_");
- break;
- case function_name_prefix_idecode:
- nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
- nr += lf_printf (file, "idecode_");
- break;
- case function_name_prefix_itable:
- nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
- break;
- case function_name_prefix_icache:
- nr += lf_printf (file, "%s", options.module.icache.prefix.l);
- nr += lf_printf (file, "icache_");
- break;
- case function_name_prefix_engine:
- nr += lf_printf (file, "%s", options.module.engine.prefix.l);
- nr += lf_printf (file, "engine_");
- default:
- break;
- }
-
- if (model_name != NULL)
- {
- nr += print_c_name (file, model_name);
- nr += lf_printf (file, "_");
- }
-
- /* the function name */
- nr += print_c_name (file, basename);
-
- /* the format name if available */
- if (format_name != NULL)
- {
- nr += lf_printf (file, "_");
- nr += print_c_name (file, format_name);
- }
-
- /* the suffix */
- nr += print_opcode_bits (file, expanded_bits);
-
- return nr;
-}
-
-
-void
-print_my_defines (lf *file,
- const char *basename,
- const char *format_name,
- opcode_bits *expanded_bits)
-{
- /* #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,
- basename, format_name, NULL,
- NULL,
- function_name_prefix_itable);
- lf_printf (file, "\n");
- /* #define MY_PREFIX xxxxxx */
- lf_indent_suppress (file);
- lf_printf (file, "#undef ");
- print_function_name (file,
- basename, format_name, NULL,
- expanded_bits,
- function_name_prefix_none);
- lf_printf (file, "\n");
- 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,
- basename, format_name, NULL,
- expanded_bits,
- function_name_prefix_none);
- lf_printf (file, "\n");
- /* #define MY_NAME xxxxxx */
- lf_indent_suppress (file);
- lf_indent_suppress (file);
- lf_printf (file, "#undef MY_NAME\n");
- lf_indent_suppress (file);
- lf_printf (file, "#define MY_NAME \"");
- print_function_name (file,
- basename, format_name, NULL,
- expanded_bits,
- function_name_prefix_none);
- lf_printf (file, "\"\n");
-}
-
-
-static int
-print_itrace_prefix (lf *file)
-{
- const char *prefix = "trace_prefix (";
- int indent = strlen (prefix);
- lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n", prefix);
- lf_indent (file, +indent);
- lf_printf (file, "%sitable[MY_INDEX].file, \\\n", options.module.itable.prefix.l);
- lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n", options.module.itable.prefix.l);
- lf_printf (file, "\"");
- return indent;
-}
-
-
-static void
-print_itrace_format (lf *file,
- insn_mnemonic_entry *assembler)
-{
- /* pass=1 is fmt string; pass=2 is arguments */
- int pass;
- /* print the format string */
- for (pass = 1; pass <= 2; pass++)
- {
- const char *chp = assembler->format;
- chp++; /* skip the leading quote */
- /* write out the format/args */
- while (*chp != '\0')
- {
- if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
- {
- if (pass == 1)
- lf_putchr (file, chp[1]);
- chp += 2;
- }
- else if (chp[0] == '<' || chp[0] == '%')
- {
- /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
- const char *fmt;
- const char *func;
- int strlen_func;
- const char *param;
- int strlen_param;
- /* the "%" ... "<" format */
- fmt = chp;
- while (chp[0] != '<' && chp[0] != '\0')
- chp++;
- if (chp[0] != '<')
- error (assembler->line, "Missing `<' after `%%'\n");
- chp++;
- /* [ "func" # ] OR "param" */
- func = chp;
- param = chp;
- while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
- chp++;
- strlen_func = chp - func;
- if (chp[0] == '#')
- {
- chp++;
- param = chp;
- while (chp[0] != '>' && chp[0] != '\0')
- chp++;
- }
- strlen_param = chp - param;
- if (chp[0] != '>')
- error (assembler->line, "Missing closing `>' in assembler string\n");
- chp++;
- /* now process it */
- if (pass == 2)
- lf_printf (file, ", \\\n");
- if (strncmp (fmt, "<", 1) == 0)
- /* implicit long int format */
- {
- if (pass == 1)
- lf_printf (file, "%%ld");
- else
- {
- lf_printf (file, "(long) ");
- lf_write (file, param, strlen_param);
- }
- }
- else if (strncmp (fmt, "%<", 2) == 0)
- /* explicit format */
- {
- if (pass == 1)
- lf_printf (file, "%%");
- else
- lf_write (file, param, strlen_param);
- }
- else if (strncmp (fmt, "%s<", 3) == 0)
- /* string format */
- {
- if (pass == 1)
- lf_printf (file, "%%s");
- else
- {
- lf_printf (file, "%sstr_", options.module.global.prefix.l);
- lf_write (file, func, strlen_func);
- lf_printf (file, " (SD_, ");
- lf_write (file, param, strlen_param);
- lf_printf (file, ")");
- }
- }
- else if (strncmp (fmt, "%lx<", 4) == 0)
- /* simple hex */
- {
- if (pass == 1)
- lf_printf (file, "%%lx");
- else
- {
- lf_printf (file, "(unsigned long) ");
- lf_write (file, param, strlen_param);
- }
- }
- else if (strncmp (fmt, "%08lx<", 6) == 0)
- /* simple hex */
- {
- if (pass == 1)
- lf_printf (file, "%%08lx");
- else
- {
- lf_printf (file, "(unsigned long) ");
- lf_write (file, param, strlen_param);
- }
- }
- else
- error (assembler->line, "Unknown assembler string format\n");
- }
- else
- {
- if (pass == 1)
- lf_putchr (file, chp[0]);
- chp += 1;
- }
- }
- }
- lf_printf (file, ");\n");
-}
-
-
-void
-print_itrace (lf *file,
- insn_entry *insn,
- int idecode)
-{
- /* NB: Here we escape each EOLN. This is so that the the compiler
- treats a trace function call as a single line. Consequently any
- errors in the line are refered back to the same igen assembler
- source line */
- const char *phase = (idecode) ? "DECODE" : "INSN";
- lf_printf (file, "\n");
- lf_indent_suppress (file);
- lf_printf (file, "#if defined (WITH_TRACE)\n");
- lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
- lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
- lf_printf (file, " {\n");
- lf_indent (file, +4);
- {
- if (insn->mnemonics != NULL)
- {
- insn_mnemonic_entry *assembler = insn->mnemonics;
- int is_first = 1;
- do
- {
- if (assembler->condition != NULL)
- {
- int indent;
- lf_printf (file, "%sif (%s)\n",
- is_first ? "" : "else ",
- assembler->condition);
- lf_indent (file, +2);
- lf_print__line_ref (file, assembler->line);
- indent = print_itrace_prefix (file);
- print_itrace_format (file, assembler);
- lf_print__internal_ref (file);
- lf_indent (file, -indent);
- lf_indent (file, -2);
- if (assembler->next == NULL)
- error (assembler->line, "Missing final unconditional assembler\n");
- }
- else
- {
- int indent;
- if (!is_first)
- {
- lf_printf (file, "else\n");
- lf_indent (file, +2);
- }
- lf_print__line_ref (file, assembler->line);
- indent = print_itrace_prefix (file);
- print_itrace_format (file, assembler);
- lf_print__internal_ref (file);
- lf_indent (file, -indent);
- if (!is_first)
- lf_indent (file, -2);
- if (assembler->next != NULL)
- error (assembler->line, "Unconditional assembler is not last\n");
- }
- is_first = 0;
- assembler = assembler->next;
- }
- while (assembler != NULL);
- }
- else
- {
- int indent;
- lf_indent (file, +2);
- lf_print__line_ref (file, insn->line);
- indent = print_itrace_prefix (file);
- lf_printf (file, "%%s\", \\\n");
- lf_printf (file, "itable[MY_INDEX].name);\n");
- lf_print__internal_ref (file);
- lf_indent (file, -indent);
- lf_indent (file, -2);
- }
- lf_printf (file, "/* trace the instruction execution if enabled */\n");
- lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
- lf_printf (file, " trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n", phase);
- }
- lf_indent (file, -4);
- 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");
-}
-
-
-void
-print_include (lf *file,
- igen_module module)
-{
- lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
-}
-
-void
-print_include_inline (lf *file,
- igen_module module)
-{
- lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
- lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
- lf_printf (file, "#else\n");
- print_include (file, module);
- lf_printf (file, "#endif\n");
- lf_printf (file, "\n");
-}
-
-void
-print_includes (lf *file)
-{
- lf_printf (file, "\n");
- lf_printf (file, "#include \"sim-inline.c\"\n");
- lf_printf (file, "\n");
- print_include_inline (file, options.module.itable);
- print_include_inline (file, options.module.idecode);
- print_include_inline (file, options.module.support);
-}
-
-
-/****************************************************************/
-
-
-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.module.global.prefix.l);
- 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;
- print_includes (file);
- print_include (file, options.module.semantics);
- 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.module.global.prefix.l,
- 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.module.global.prefix.l);
- if (options.gen.delayed_branch)
- {
- lf_printf (file, "typedef struct _%sinstruction_address {\n",
- options.module.global.prefix.l);
- 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.module.global.prefix.l);
- }
- else
- {
- lf_printf (file, "typedef address_word %sinstruction_address;\n",
- options.module.global.prefix.l);
-
- }
- if (options.gen.nia == nia_is_invalid
- && strlen (options.module.global.prefix.u) > 0)
- {
- lf_indent_suppress (file);
- lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
- options.module.global.prefix.u);
- 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,
- (options.gen.multi_sim
- ? entry->model->name
- : NULL),
- is_function_declaration,
- 1/*ALWAYS ONE WORD*/);
- }
- if (options.gen.multi_sim)
- {
- print_idecode_issue_function_header (file,
- NULL,
- is_function_variable,
- 1/*ALWAYS ONE WORD*/);
- }
- }
-}
-
-
-static void
-gen_idecode_c (lf *file,
- gen_table *gen,
- insn_table *isa,
- cache_entry *cache_rules)
-{
- /* the intro */
- print_includes (file);
- print_include_inline (file, options.module.semantics);
- 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,
- (options.gen.multi_sim
- ? entry->model->name
- : NULL),
- 1/*is definition*/,
- 1/*ALWAYS ONE WORD*/);
- lf_printf (file, "{\n");
- lf_indent (file, +2);
- lf_printf (file, "%sinstruction_address nia;\n",
- options.module.global.prefix.l);
- 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 \"idecode.h\"\n");
- lf_printf (file, "#include \"bfd.h\"\n");
- lf_printf (file, "\n");
-
- if (options.gen.multi_sim)
- {
- print_idecode_issue_function_header (file, NULL, is_function_variable, 1);
- lf_printf (file, "\n");
- print_engine_run_function_header (file, NULL, is_function_variable);
- 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 nr_cpus,\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)
- {
- if (options.gen.default_model != NULL
- && (strcmp (entry->model->name, options.gen.default_model) == 0
- || strcmp (entry->model->full_name, options.gen.default_model) == 0))
- lf_printf (file, "default:\n");
- lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
- lf_indent (file, +2);
- print_function_name (file,
- "issue",
- NULL, /* format name */
- NULL, /* NO processor */
- NULL, /* expanded bits */
- function_name_prefix_idecode);
- lf_printf (file, " = ");
- print_function_name (file,
- "issue",
- NULL, /* format name */
- entry->model->name,
- NULL, /* expanded bits */
- function_name_prefix_idecode);
- lf_printf (file, ";\n");
- print_function_name (file,
- "run",
- NULL, /* format name */
- NULL, /* NO processor */
- NULL, /* expanded bits */
- function_name_prefix_engine);
- lf_printf (file, " = ");
- print_function_name (file,
- "run",
- NULL, /* format name */
- entry->model->name,
- NULL, /* expanded bits */
- function_name_prefix_engine);
- lf_printf (file, ";\n");
- lf_printf (file, "break;\n");
- lf_indent (file, -2);
- }
- if (options.gen.default_model == NULL)
- {
- 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");
- }
- 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, nr_cpus, 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 ();
-
- 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 <directory>\n");
- printf ("\t Add <directory> to the list of directories searched when opening a file\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 ("\t 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 a specific <module>'s prefix.\n");
- printf ("\n");
- printf (" -S <suffix>\n");
- printf ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
- printf ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
- printf ("\n");
- printf (" -Werror\n");
- printf ("\t Make warnings errors\n");
- printf (" -Wnodiscard\n");
- printf ("\t Suppress warnings about discarded functions and instructions\n");
- printf (" -Wnowidth\n");
- printf ("\t Suppress warnings about instructions with invalid widths\n");
- printf (" -Wnounimplemented\n");
- printf ("\t Suppress warnings about unimplemented instructions\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[=<N> - generate an instruction cracking cache of size <N>\n");
- printf ("\t Default size is %d\n", options.gen.icache_size);
- printf ("\t gen-insn-in-icache - save original instruction when cracking\n");
- printf ("\t gen-multi-sim[=MODEL] - generate multiple simulators - one per model\n");
- printf ("\t If specified MODEL is made the default architecture.\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 ("\t trace-insn-insertion - report each instruction as it is inserted into a decode table\n");
- printf ("\t trace-rule-expansion - report each instruction as it is expanded (before insertion into a decode table)\n");
- printf ("\t trace-all - enable all trace options\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':
- {
- table_include **dir = &options.include;
- while ((*dir) != NULL)
- dir = &(*dir)->next;
- (*dir) = ZALLOC (table_include);
- (*dir)->dir = strdup (optarg);
- }
- 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':
- case 'S':
- {
- igen_module *names;
- igen_name *name;
- char *chp;
- chp = strchr (optarg, '=');
- if (chp == NULL)
- {
- names = &options.module.global;
- chp = optarg;
- }
- else
- {
- chp = chp + 1; /* skip `=' */
- names = NULL;
- if (strncmp (optarg, "global=", chp - optarg) == 0)
- {
- names = &options.module.global;
- }
- if (strncmp (optarg, "engine=", chp - optarg) == 0)
- {
- names = &options.module.engine;
- }
- if (strncmp (optarg, "icache=", chp - optarg) == 0)
- {
- names = &options.module.icache;
- }
- if (strncmp (optarg, "idecode=", chp - optarg) == 0)
- {
- names = &options.module.idecode;
- }
- if (strncmp (optarg, "itable=", chp - optarg) == 0)
- {
- names = &options.module.itable;
- }
- if (strncmp (optarg, "semantics=", chp - optarg) == 0)
- {
- names = &options.module.semantics;
- }
- if (strncmp (optarg, "support=", chp - optarg) == 0)
- {
- names = &options.module.support;
- }
- if (names == NULL)
- {
- error (NULL, "Prefix `%s' unreconized\n", optarg);
- }
- }
- switch (ch)
- {
- case 'P':
- name = &names->prefix;
- break;
- case 'S':
- name = &names->suffix;
- break;
- }
- name->u = strdup (chp);
- name->l = strdup (chp);
- chp = name->u;
- while (*chp) {
- if (islower(*chp))
- *chp = toupper(*chp);
- chp++;
- }
- if (name == &options.module.global.prefix)
- {
- options.module.engine.prefix = options.module.global.prefix;
- options.module.icache.prefix = options.module.global.prefix;
- options.module.idecode.prefix = options.module.global.prefix;
- /* options.module.itable.prefix = options.module.global.prefix; */
- options.module.semantics.prefix = options.module.global.prefix;
- options.module.support.prefix = options.module.global.prefix;
- }
- if (name == &options.module.global.suffix)
- {
- options.module.engine.suffix = options.module.global.suffix;
- options.module.icache.suffix = options.module.global.suffix;
- options.module.idecode.suffix = options.module.global.suffix;
- /* options.module.itable.suffix = options.module.global.suffix; */
- options.module.semantics.suffix = options.module.global.suffix;
- options.module.support.suffix = options.module.global.suffix;
- }
- break;
- }
-
- case 'W':
- {
- if (strcmp (optarg, "error") == 0)
- options.warning = error;
- else if (strcmp (optarg, "nodiscard") == 0)
- options.warn.discard = 0;
- else if (strcmp (optarg, "discard") == 0)
- options.warn.discard = 1;
- else if (strcmp (optarg, "nowidth") == 0)
- options.warn.width = 0;
- else if (strcmp (optarg, "width") == 0)
- options.warn.width = 1;
- else if (strcmp (optarg, "nounimplemented") == 0)
- options.warn.unimplemented = 0;
- else if (strcmp (optarg, "unimplemented") == 0)
- options.warn.unimplemented = 1;
- else
- error (NULL, "Unknown -W argument `%s'\n", optarg);
- break;
- }
-
-
- case 'G':
- {
- int enable_p;
- char *argp;
- if (strncmp (optarg, "no-", strlen ("no-")) == 0)
- {
- argp = optarg + strlen ("no-");
- enable_p = 0;
- }
- else if (strncmp (optarg, "!", strlen ("!")) == 0)
- {
- argp = optarg + strlen ("no-");
- enable_p = 0;
- }
- else
- {
- argp = optarg;
- enable_p = 1;
- }
- if (strcmp (argp, "decode-duplicate") == 0)
- {
- options.decode.duplicate = enable_p;
- }
- else if (strcmp (argp, "decode-combine") == 0)
- {
- options.decode.combine = enable_p;
- }
- else if (strcmp (argp, "decode-zero-reserved") == 0)
- {
- options.decode.zero_reserved = enable_p;
- }
-
- else if (strcmp (argp, "gen-conditional-issue") == 0)
- {
- options.gen.conditional_issue = enable_p;
- }
- else if (strcmp (argp, "conditional-issue") == 0)
- {
- options.gen.conditional_issue = enable_p;
- options.warning (NULL, "Option conditional-issue replaced by gen-conditional-issue\n");
- }
- else if (strcmp (argp, "gen-delayed-branch") == 0)
- {
- options.gen.delayed_branch = enable_p;
- }
- else if (strcmp (argp, "delayed-branch") == 0)
- {
- options.gen.delayed_branch = enable_p;
- options.warning (NULL, "Option delayed-branch replaced by gen-delayed-branch\n");
- }
- else if (strcmp (argp, "gen-direct-access") == 0)
- {
- options.gen.direct_access = enable_p;
- }
- else if (strcmp (argp, "direct-access") == 0)
- {
- options.gen.direct_access = enable_p;
- options.warning (NULL, "Option direct-access replaced by gen-direct-access\n");
- }
- else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
- {
- options.gen.zero_reg = enable_p;
- options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
- }
- else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
- {
- options.gen.zero_reg = enable_p;
- options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
- options.warning (NULL, "Option zero-r<N> replaced by gen-zero-r<N>\n");
- }
- else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
- {
- switch (argp[strlen ("gen-icache")])
- {
- case '=':
- options.gen.icache_size = atoi (argp + strlen ("gen-icache") + 1);
- options.gen.icache = enable_p;
- break;
- case '\0':
- options.gen.icache = enable_p;
- break;
- default:
- error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
- }
- }
- else if (strcmp (argp, "gen-insn-in-icache") == 0)
- {
- options.gen.insn_in_icache = enable_p;
- }
- else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim")) == 0)
- {
- char *arg = &argp[strlen ("gen-multi-sim")];
- switch (arg[0])
- {
- case '=':
- options.gen.multi_sim = enable_p;
- options.gen.default_model = arg + 1;
- if (! filter_is_member (options.model_filter, options.gen.default_model))
- error (NULL, "multi-sim model %s unknown\n", options.gen.default_model);
- break;
- case '\0':
- options.gen.multi_sim = enable_p;
- options.gen.default_model = NULL;
- break;
- default:
- error (NULL, "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
- break;
- }
- }
- else if (strcmp (argp, "gen-multi-word") == 0)
- {
- options.gen.multi_word = enable_p;
- }
- else if (strcmp (argp, "gen-semantic-icache") == 0)
- {
- options.gen.semantic_icache = enable_p;
- }
- else if (strcmp (argp, "gen-slot-verification") == 0)
- {
- options.gen.slot_verification = enable_p;
- }
- else if (strcmp (argp, "verify-slot") == 0)
- {
- options.gen.slot_verification = enable_p;
- options.warning (NULL, "Option verify-slot replaced by gen-slot-verification\n");
- }
- else if (strcmp (argp, "gen-nia-invalid") == 0)
- {
- options.gen.nia = nia_is_invalid;
- }
- else if (strcmp (argp, "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 (argp, "gen-nia-void") == 0)
- {
- options.gen.nia = nia_is_void;
- }
- else if (strcmp (argp, "trace-all") == 0)
- {
- memset (&options.trace, enable_p, sizeof (options.trace));
- }
- else if (strcmp (argp, "trace-combine") == 0)
- {
- options.trace.combine = enable_p;
- }
- else if (strcmp (argp, "trace-entries") == 0)
- {
- options.trace.entries = enable_p;
- }
- else if (strcmp (argp, "trace-rule-rejection") == 0)
- {
- options.trace.rule_rejection = enable_p;
- }
- else if (strcmp (argp, "trace-rule-selection") == 0)
- {
- options.trace.rule_selection = enable_p;
- }
- else if (strcmp (argp, "trace-insn-insertion") == 0)
- {
- options.trace.insn_insertion = enable_p;
- }
- else if (strcmp (argp, "trace-insn-expansion") == 0)
- {
- options.trace.insn_expansion = enable_p;
- }
- else if (strcmp (argp, "jumps") == 0)
- {
- options.gen.code = generate_jumps;
- }
- else if (strcmp (argp, "field-widths") == 0)
- {
- options.insn_specifying_widths = enable_p;
- }
- else if (strcmp (argp, "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);
-}
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