1 /* The IGEN simulator generator for GDB, the GNU Debugger.
3 Copyright 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
5 Contributed by Andrew Cagney.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 typedef struct _opcode_field opcode_field;
31 unsigned boolean_constant;
35 typedef struct _opcode_bits opcode_bits;
41 insn_field_entry *field;
46 typedef struct _insn_opcodes insn_opcodes;
53 typedef struct _insn_list insn_list;
58 /* list of non constant bits that have been made constant */
59 opcode_bits *expanded_bits;
60 /* list of the various opcode field paths used to reach this
62 insn_opcodes *opcodes;
63 /* number of prefetched words for this instruction */
64 int nr_prefetched_words;
65 /* The semantic function list_entry corresponding to this insn */
72 typedef struct _gen_list gen_list;
74 typedef struct _gen_entry gen_entry;
78 /* as an entry in a table */
82 opcode_bits *expanded_bits;
83 gen_entry *parent; /* parent has the opcode* data */
85 /* as a table containing entries */
86 decode_table *opcode_rule;
88 int nr_prefetched_words;
92 /* as both an entry and a table */
96 /* if siblings are being combined */
97 gen_entry *combined_next;
98 gen_entry *combined_parent;
100 /* our top-of-tree */
114 typedef struct _gen_table gen_table;
117 /* list of all the instructions */
119 /* list of all the semantic functions */
121 /* list of all the generated instruction tables */
123 /* list of all the semantic functions */
125 insn_list *semantics;
129 extern gen_table *make_gen_tables (insn_table *isa, decode_table *rules);
132 extern void gen_tables_expand_insns (gen_table *gen);
134 extern void gen_tables_expand_semantics (gen_table *gen);
136 extern int gen_entry_depth (gen_entry *table);
140 /* Traverse the created data structure */
142 typedef void gen_entry_handler
143 (lf *file, gen_entry *entry, int depth, void *data);
145 extern void gen_entry_traverse_tree
149 gen_entry_handler * start,
150 gen_entry_handler * leaf, gen_entry_handler * end, void *data);
154 /* Misc functions - actually in igen.c */
157 /* Cache functions: */
159 extern int print_icache_function_formal (lf *file, int nr_prefetched_words);
161 extern int print_icache_function_actual (lf *file, int nr_prefetched_words);
163 extern int print_icache_function_type (lf *file);
165 extern int print_semantic_function_formal (lf *file, int nr_prefetched_words);
167 extern int print_semantic_function_actual (lf *file, int nr_prefetched_words);
169 extern int print_semantic_function_type (lf *file);
171 extern int print_idecode_function_formal (lf *file, int nr_prefetched_words);
173 extern int print_idecode_function_actual (lf *file, int nr_prefetched_words);
177 function_name_prefix_semantics,
178 function_name_prefix_idecode,
179 function_name_prefix_itable,
180 function_name_prefix_icache,
181 function_name_prefix_engine,
182 function_name_prefix_none
184 lf_function_name_prefixes;
188 is_function_declaration = 0,
189 is_function_definition = 1,
190 is_function_variable,
194 extern int print_function_name
196 const char *basename,
197 const char *format_name,
198 const char *model_name,
199 opcode_bits *expanded_bits, lf_function_name_prefixes prefix);
201 extern void print_my_defines
203 const char *basename, const char *format_name, opcode_bits *expanded_bits);
205 extern void print_itrace (lf *file, insn_entry * insn, int idecode);
207 extern void print_sim_engine_abort (lf *file, const char *message);
210 extern void print_include (lf *file, igen_module module);
211 extern void print_include_inline (lf *file, igen_module module);
212 extern void print_includes (lf *file);