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[/] [or1k/] [trunk/] [gdb-5.3/] [sim/] [igen/] [gen.h] - Rev 1181
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/* The IGEN simulator generator for GDB, the GNU Debugger. Copyright 2002 Free Software Foundation, Inc. Contributed by Andrew Cagney. This file is part of GDB. 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. */ typedef struct _opcode_field opcode_field; struct _opcode_field { int word_nr; int first; int last; int is_boolean; int nr_opcodes; unsigned boolean_constant; opcode_field *parent; }; typedef struct _opcode_bits opcode_bits; struct _opcode_bits { int value; int first; int last; insn_field_entry *field; opcode_field *opcode; opcode_bits *next; }; typedef struct _insn_opcodes insn_opcodes; struct _insn_opcodes { opcode_field *opcode; insn_opcodes *next; }; typedef struct _insn_list insn_list; struct _insn_list { /* the instruction */ insn_entry *insn; /* list of non constant bits that have been made constant */ opcode_bits *expanded_bits; /* list of the various opcode field paths used to reach this instruction */ insn_opcodes *opcodes; /* number of prefetched words for this instruction */ int nr_prefetched_words; /* The semantic function list_entry corresponding to this insn */ insn_list *semantic; /* linked list */ insn_list *next; }; /* forward */ typedef struct _gen_list gen_list; typedef struct _gen_entry gen_entry; struct _gen_entry { /* as an entry in a table */ int word_nr; int opcode_nr; gen_entry *sibling; opcode_bits *expanded_bits; gen_entry *parent; /* parent has the opcode* data */ /* as a table containing entries */ decode_table *opcode_rule; opcode_field *opcode; int nr_prefetched_words; int nr_entries; gen_entry *entries; /* as both an entry and a table */ int nr_insns; insn_list *insns; /* if siblings are being combined */ gen_entry *combined_next; gen_entry *combined_parent; /* our top-of-tree */ gen_list *top; }; struct _gen_list { model_entry *model; insn_table *isa; gen_entry *table; gen_list *next; }; typedef struct _gen_table gen_table; struct _gen_table { /* list of all the instructions */ insn_table *isa; /* list of all the semantic functions */ decode_table *rules; /* list of all the generated instruction tables */ gen_list *tables; /* list of all the semantic functions */ int nr_semantics; insn_list *semantics; }; extern gen_table *make_gen_tables (insn_table *isa, decode_table *rules); extern void gen_tables_expand_insns (gen_table *gen); extern void gen_tables_expand_semantics (gen_table *gen); extern int gen_entry_depth (gen_entry *table); /* Traverse the created data structure */ typedef void gen_entry_handler (lf *file, gen_entry *entry, int depth, void *data); extern void gen_entry_traverse_tree (lf *file, gen_entry *table, int depth, gen_entry_handler * start, gen_entry_handler * leaf, gen_entry_handler * end, void *data); /* Misc functions - actually in igen.c */ /* Cache functions: */ extern int print_icache_function_formal (lf *file, int nr_prefetched_words); extern int print_icache_function_actual (lf *file, int nr_prefetched_words); extern int print_icache_function_type (lf *file); extern int print_semantic_function_formal (lf *file, int nr_prefetched_words); extern int print_semantic_function_actual (lf *file, int nr_prefetched_words); extern int print_semantic_function_type (lf *file); extern int print_idecode_function_formal (lf *file, int nr_prefetched_words); extern int print_idecode_function_actual (lf *file, int nr_prefetched_words); typedef enum { function_name_prefix_semantics, function_name_prefix_idecode, function_name_prefix_itable, function_name_prefix_icache, function_name_prefix_engine, function_name_prefix_none } lf_function_name_prefixes; typedef enum { is_function_declaration = 0, is_function_definition = 1, is_function_variable, } function_decl_type; 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); extern void print_my_defines (lf *file, const char *basename, const char *format_name, opcode_bits *expanded_bits); extern void print_itrace (lf *file, insn_entry * insn, int idecode); extern void print_sim_engine_abort (lf *file, const char *message); extern void print_include (lf *file, igen_module module); extern void print_include_inline (lf *file, igen_module module); extern void print_includes (lf *file);
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