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c906108c SS |
1 | /* This file is part of the program psim. |
2 | ||
3 | Copyright (C) 1994,1995,1996, Andrew Cagney <cagney@highland.com.au> | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | ||
19 | */ | |
20 | ||
21 | ||
22 | typedef struct _opcode_field opcode_field; | |
23 | struct _opcode_field { | |
24 | int word_nr; | |
25 | int first; | |
26 | int last; | |
27 | int is_boolean; | |
28 | int nr_opcodes; | |
29 | unsigned boolean_constant; | |
30 | opcode_field *parent; | |
31 | }; | |
32 | ||
33 | typedef struct _opcode_bits opcode_bits; | |
34 | struct _opcode_bits { | |
35 | int value; | |
36 | int first; | |
37 | int last; | |
38 | insn_field_entry *field; | |
39 | opcode_field *opcode; | |
40 | opcode_bits *next; | |
41 | }; | |
42 | ||
43 | typedef struct _insn_opcodes insn_opcodes; | |
44 | struct _insn_opcodes { | |
45 | opcode_field *opcode; | |
46 | insn_opcodes *next; | |
47 | }; | |
48 | ||
49 | typedef struct _insn_list insn_list; | |
50 | struct _insn_list { | |
51 | /* the instruction */ | |
52 | insn_entry *insn; | |
53 | /* list of non constant bits that have been made constant */ | |
54 | opcode_bits *expanded_bits; | |
55 | /* list of the various opcode field paths used to reach this | |
56 | instruction */ | |
57 | insn_opcodes *opcodes; | |
58 | /* number of prefetched words for this instruction */ | |
59 | int nr_prefetched_words; | |
60 | /* The semantic function list_entry corresponding to this insn */ | |
61 | insn_list *semantic; | |
62 | /* linked list */ | |
63 | insn_list *next; | |
64 | }; | |
65 | ||
66 | /* forward */ | |
67 | typedef struct _gen_list gen_list; | |
68 | ||
69 | typedef struct _gen_entry gen_entry; | |
70 | struct _gen_entry { | |
71 | ||
72 | /* as an entry in a table */ | |
73 | int word_nr; | |
74 | int opcode_nr; | |
75 | gen_entry *sibling; | |
76 | opcode_bits *expanded_bits; | |
77 | gen_entry *parent; /* parent has the opcode* data */ | |
78 | ||
79 | /* as a table containing entries */ | |
80 | decode_table *opcode_rule; | |
81 | opcode_field *opcode; | |
82 | int nr_prefetched_words; | |
83 | int nr_entries; | |
84 | gen_entry *entries; | |
85 | ||
86 | /* as both an entry and a table */ | |
87 | int nr_insns; | |
88 | insn_list *insns; | |
89 | ||
90 | /* if siblings are being combined */ | |
91 | gen_entry *combined_next; | |
92 | gen_entry *combined_parent; | |
93 | ||
94 | /* our top-of-tree */ | |
95 | gen_list *top; | |
96 | }; | |
97 | ||
98 | ||
99 | struct _gen_list { | |
100 | model_entry *model; | |
101 | insn_table *isa; | |
102 | gen_entry *table; | |
103 | gen_list *next; | |
104 | }; | |
105 | ||
106 | ||
107 | typedef struct _gen_table gen_table; | |
108 | struct _gen_table { | |
109 | /* list of all the instructions */ | |
110 | insn_table *isa; | |
111 | /* list of all the semantic functions */ | |
112 | decode_table *rules; | |
113 | /* list of all the generated instruction tables */ | |
114 | gen_list *tables; | |
115 | /* list of all the semantic functions */ | |
116 | int nr_semantics; | |
117 | insn_list *semantics; | |
118 | }; | |
119 | ||
120 | ||
121 | extern gen_table *make_gen_tables | |
122 | (insn_table *isa, | |
123 | decode_table *rules); | |
124 | ||
125 | ||
126 | extern void gen_tables_expand_insns | |
127 | (gen_table *gen); | |
128 | ||
129 | extern void gen_tables_expand_semantics | |
130 | (gen_table *gen); | |
131 | ||
132 | extern int gen_entry_depth | |
133 | (gen_entry *table); | |
134 | ||
135 | ||
136 | ||
137 | /* Traverse the created data structure */ | |
138 | ||
139 | typedef void gen_entry_handler | |
140 | (lf *file, | |
141 | gen_entry *entry, | |
142 | int depth, | |
143 | void *data); | |
144 | ||
145 | extern void gen_entry_traverse_tree | |
146 | (lf *file, | |
147 | gen_entry *table, | |
148 | int depth, | |
149 | gen_entry_handler *start, | |
150 | gen_entry_handler *leaf, | |
151 | gen_entry_handler *end, | |
152 | void *data); | |
153 | ||
154 | ||
155 | ||
156 | /* Misc functions - actually in igen.c */ | |
157 | ||
158 | ||
159 | /* Cache functions: */ | |
160 | ||
161 | extern int print_icache_function_formal | |
162 | (lf *file, int nr_prefetched_words); | |
163 | ||
164 | extern int print_icache_function_actual | |
165 | (lf *file, int nr_prefetched_words); | |
166 | ||
167 | extern int print_icache_function_type | |
168 | (lf *file); | |
169 | ||
170 | extern int print_semantic_function_formal | |
171 | (lf *file, int nr_prefetched_words); | |
172 | ||
173 | extern int print_semantic_function_actual | |
174 | (lf *file, int nr_prefetched_words); | |
175 | ||
176 | extern int print_semantic_function_type | |
177 | (lf *file); | |
178 | ||
179 | extern int print_idecode_function_formal | |
180 | (lf *file, int nr_prefetched_words); | |
181 | ||
182 | extern int print_idecode_function_actual | |
183 | (lf *file, int nr_prefetched_words); | |
184 | ||
185 | typedef enum { | |
186 | function_name_prefix_semantics, | |
187 | function_name_prefix_idecode, | |
188 | function_name_prefix_itable, | |
189 | function_name_prefix_icache, | |
190 | function_name_prefix_engine, | |
191 | function_name_prefix_none | |
192 | } lf_function_name_prefixes; | |
193 | ||
194 | typedef enum { | |
195 | is_function_declaration = 0, | |
196 | is_function_definition = 1, | |
197 | is_function_variable, | |
198 | } function_decl_type; | |
199 | ||
200 | extern int print_function_name | |
201 | (lf *file, | |
202 | const char *basename, | |
203 | const char *format_name, | |
204 | const char *model_name, | |
205 | opcode_bits *expanded_bits, | |
206 | lf_function_name_prefixes prefix); | |
207 | ||
208 | extern void print_my_defines | |
209 | (lf *file, | |
210 | const char *basename, | |
211 | const char *format_name, | |
212 | opcode_bits *expanded_bits); | |
213 | ||
214 | extern void print_itrace | |
215 | (lf *file, | |
216 | insn_entry *insn, | |
217 | int idecode); | |
218 | ||
219 | extern void print_sim_engine_abort | |
220 | (lf *file, | |
221 | const char *message); | |
222 | ||
223 | ||
224 | extern void print_include (lf *file, igen_module module); | |
225 | extern void print_include_inline (lf *file, igen_module module); | |
226 | extern void print_includes (lf *file); | |
227 |