diff options
Diffstat (limited to 'sim/igen/gen-itable.c')
| -rw-r--r-- | sim/igen/gen-itable.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/sim/igen/gen-itable.c b/sim/igen/gen-itable.c new file mode 100644 index 0000000..c3e9053 --- /dev/null +++ b/sim/igen/gen-itable.c @@ -0,0 +1,317 @@ +/* This file is part of the program psim. + + Copyright (C) 1994-1995, 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 "misc.h" +#include "lf.h" +#include "table.h" +#include "filter.h" +#include "igen.h" + +#include "ld-insn.h" +#include "ld-decode.h" + +#include "gen.h" + +#include "gen-itable.h" + +#ifndef NULL +#define NULL 0 +#endif + + + +typedef struct _itable_info { + int sizeof_form; + int sizeof_name; + int sizeof_file; +} itable_info; + + +static void +itable_h_insn (lf *file, + insn_table *entry, + insn_entry *instruction, + void *data) +{ + int len; + itable_info *info = data; + lf_print__line_ref (file, instruction->line); + lf_printf (file, " "); + print_function_name (file, + instruction->name, + instruction->format_name, + NULL, + NULL, + function_name_prefix_itable); + lf_printf (file, ",\n"); + /* update summary info */ + len = strlen (instruction->format_name); + if (info->sizeof_form <= len) + info->sizeof_form = len + 1; + len = strlen (instruction->name); + if (info->sizeof_name <= len) + info->sizeof_name = len + 1; + len = strlen (filter_filename (instruction->line->file_name)); + if (info->sizeof_file <= len) + info->sizeof_file = len + 1; +} + + +/* print the list of all the different options */ + +static void +itable_print_enum (lf *file, + filter *set, + char *name) +{ + char *elem; + lf_printf (file, "typedef enum {\n"); + lf_indent (file, +2); + for (elem = filter_next (set, ""); + elem != NULL; + elem = filter_next (set, elem)) + { + lf_printf (file, "%sitable_%s_%s,\n", + options.module.itable.prefix.l, name, elem); + if (strlen (options.module.itable.prefix.l) > 0) + { + lf_indent_suppress (file); + lf_printf (file, "#define itable_%s_%s %sitable_%s_%s\n", + name, elem, options.module.itable.prefix.l, name, elem); + } + } + lf_printf (file, "nr_%sitable_%ss,\n", options.module.itable.prefix.l, name); + + lf_indent (file, -2); + lf_printf (file, "} %sitable_%ss;\n", options.module.itable.prefix.l, name); + if (strlen (options.module.itable.prefix.l) > 0) + { + lf_indent_suppress (file); + lf_printf (file, "#define itable_%ss %sitable_%ss\n", + name, options.module.itable.prefix.l, name); + lf_indent_suppress (file); + lf_printf (file, "#define nr_itable_%ss nr_%sitable_%ss\n", + name, options.module.itable.prefix.l, name); + } +} + +/* print an array of the option names as strings */ + +static void +itable_print_names (lf *file, + filter *set, + char *name) +{ + char *elem; + lf_printf (file, "const char *%sitable_%s_names[nr_%sitable_%ss + 1] = {\n", + options.module.itable.prefix.l, name, + options.module.itable.prefix.l, name); + lf_indent (file, +2); + for (elem = filter_next (set, ""); + elem != NULL; + elem = filter_next (set, elem)) + { + lf_printf (file, "\"%s\",\n", elem); + } + lf_printf (file, "0,\n"); + lf_indent (file, -2); + lf_printf (file, "};\n"); +} + +extern void +gen_itable_h (lf *file, + insn_table *isa) +{ + itable_info *info = ZALLOC (itable_info); + + /* output an enumerated type for each instruction */ + lf_printf (file, "typedef enum {\n"); + insn_table_traverse_insn (file, isa, itable_h_insn, info); + lf_printf (file, " nr_%sitable_entries,\n", options.module.itable.prefix.l); + lf_printf (file, "} %sitable_index;\n", options.module.itable.prefix.l); + lf_printf (file, "\n"); + + /* output an enumeration type for each flag */ + itable_print_enum (file, isa->flags, "flag"); + lf_printf (file, "extern const char *%sitable_flag_names[];\n", + options.module.itable.prefix.l); + lf_printf (file, "\n"); + + /* output an enumeration of all the possible options */ + itable_print_enum (file, isa->options, "option"); + lf_printf (file, "extern const char *%sitable_option_names[];\n", + options.module.itable.prefix.l); + lf_printf (file, "\n"); + + /* output an enumeration of all the processor models */ + itable_print_enum (file, isa->model->processors, "processor"); + lf_printf (file, "extern const char *%sitable_processor_names[];\n", + options.module.itable.prefix.l); + lf_printf (file, "\n"); + + /* output the table that contains the actual instruction info */ + lf_printf (file, "typedef struct _%sitable_instruction_info {\n", + options.module.itable.prefix.l); + lf_printf (file, " %sitable_index nr;\n", options.module.itable.prefix.l); + lf_printf (file, " char *format;\n"); + lf_printf (file, " char *form;\n"); + lf_printf (file, " char *flags;\n"); + + /* nr_itable_* may be zero, so we add 1 to avoid an + illegal zero-sized array. */ + lf_printf (file, " char flag[nr_%sitable_flags + 1];\n", + options.module.itable.prefix.l); + lf_printf (file, " char *options;\n"); + lf_printf (file, " char option[nr_%sitable_options + 1];\n", + options.module.itable.prefix.l); + lf_printf (file, " char *processors;\n"); + lf_printf (file, " char processor[nr_%sitable_processors + 1];\n", + options.module.itable.prefix.l); + lf_printf (file, " char *name;\n"); + lf_printf (file, " char *file;\n"); + lf_printf (file, " int line_nr;\n"); + lf_printf (file, "} %sitable_info;\n", options.module.itable.prefix.l); + lf_printf (file, "\n"); + lf_printf (file, "extern %sitable_info %sitable[nr_%sitable_entries];\n", + options.module.itable.prefix.l, options.module.itable.prefix.l, + options.module.itable.prefix.l); + if (strlen (options.module.itable.prefix.l) > 0) + { + lf_indent_suppress (file); + lf_printf (file, "#define itable %sitable\n", + options.module.itable.prefix.l); + } + lf_printf (file, "\n"); + + /* output an enum defining the max size of various itable members */ + lf_printf (file, "enum {\n"); + lf_printf (file, " sizeof_%sitable_form = %d,\n", + options.module.itable.prefix.l, info->sizeof_form); + lf_printf (file, " sizeof_%sitable_name = %d,\n", + options.module.itable.prefix.l, info->sizeof_name); + lf_printf (file, " sizeof_%sitable_file = %d,\n", + options.module.itable.prefix.l, info->sizeof_file); + lf_printf (file, "};\n"); +} + + +/****************************************************************/ + +static void +itable_print_set (lf *file, + filter *set, + filter *members) +{ + char *elem; + lf_printf (file, "\""); + elem = filter_next (members, ""); + if (elem != NULL) + { + while (1) + { + lf_printf (file, "%s", elem); + elem = filter_next (members, elem); + if (elem == NULL) + break; + lf_printf (file, ","); + } + } + lf_printf (file, "\",\n"); + + lf_printf(file, "{"); + for (elem = filter_next (set, ""); + elem != NULL; + elem = filter_next (set, elem)) + { + if (filter_is_member (members, elem)) + { + lf_printf (file, " 1,"); + } + else + { + lf_printf (file, " 0,"); + } + + } + /* always print a dummy element, to avoid empty initializers. */ + lf_printf(file, " 99 },\n"); +} + + +static void +itable_c_insn (lf *file, + insn_table *isa, + insn_entry *instruction, + void *data) +{ + lf_printf (file, "{ "); + lf_indent (file, +2); + print_function_name (file, + instruction->name, + instruction->format_name, + NULL, + NULL, + function_name_prefix_itable); + lf_printf (file, ",\n"); + lf_printf (file, "\""); + print_insn_words (file, instruction); + lf_printf (file, "\",\n"); + lf_printf (file, "\"%s\",\n", instruction->format_name); + + itable_print_set (file, isa->flags, instruction->flags); + itable_print_set (file, isa->options, instruction->options); + itable_print_set (file, isa->model->processors, instruction->processors); + + lf_printf(file, "\"%s\",\n", instruction->name); + lf_printf(file, "\"%s\",\n", + filter_filename (instruction->line->file_name)); + lf_printf(file, "%d,\n", instruction->line->line_nr); + lf_printf(file, "},\n"); + lf_indent (file, -2); +} + + +extern void +gen_itable_c (lf *file, + insn_table *isa) +{ + /* leader */ + lf_printf(file, "#include \"%sitable.h\"\n", options.module.itable.prefix.l); + lf_printf(file, "\n"); + + /* FIXME - output model data??? */ + /* FIXME - output assembler data??? */ + + /* output the flag, option and processor name tables */ + itable_print_names (file, isa->flags, "flag"); + itable_print_names (file, isa->options, "option"); + itable_print_names (file, isa->model->processors, "processor"); + + /* output the table that contains the actual instruction info */ + lf_printf (file, "%sitable_info %sitable[nr_%sitable_entries] = {\n", + options.module.itable.prefix.l, + options.module.itable.prefix.l, + options.module.itable.prefix.l); + insn_table_traverse_insn (file, isa, itable_c_insn, NULL); + + lf_printf(file, "};\n"); +} |