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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 | # -- | |
23 | # | |
24 | # | |
25 | # Fields: | |
26 | # | |
27 | # 1 Instruction format as a `start-bit,content' pairs. | |
28 | # the content is one of a digit, field name or `/' (aka.0) | |
29 | # | |
30 | # 2 Format specifier | |
31 | # | |
32 | # 3 Flags: 64 - 64bit only | |
33 | # f - floating point enabled required | |
34 | # | |
35 | # 4 short name | |
36 | # | |
37 | # 5 Description | |
38 | # | |
39 | # | |
40 | # For flags marked 'model', the fields are interpreted as follows: | |
41 | # | |
42 | # 1 Not used | |
43 | # | |
44 | # 2 Not used | |
45 | # | |
46 | # 3 "macro" | |
47 | # | |
48 | # 4 String name for model | |
49 | # | |
50 | # 5 Specific CPU model, must be an identifier | |
51 | # | |
52 | # 6 Comma separated list of functional units | |
53 | ||
54 | */ | |
55 | ||
56 | ||
57 | /* Global constants */ | |
58 | ||
59 | enum { | |
60 | max_insn_bit_size = 32, | |
61 | }; | |
62 | ||
63 | ||
64 | typedef struct _insn_field insn_field; | |
65 | struct _insn_field { | |
66 | int first; | |
67 | int last; | |
68 | int width; | |
69 | int is_int; | |
70 | int is_slash; | |
71 | int is_string; | |
72 | int val_int; | |
73 | char *pos_string; | |
74 | char *val_string; | |
75 | insn_field *next; | |
76 | insn_field *prev; | |
77 | }; | |
78 | ||
79 | typedef struct _insn_fields insn_fields; | |
80 | struct _insn_fields { | |
81 | insn_field *bits[max_insn_bit_size]; | |
82 | insn_field *first; | |
83 | insn_field *last; | |
84 | unsigned value; | |
85 | }; | |
86 | ||
87 | ||
88 | /****************************************************************/ | |
89 | ||
90 | typedef struct _opcode_field opcode_field; | |
91 | struct _opcode_field { | |
92 | int first; | |
93 | int last; | |
94 | int is_boolean; | |
95 | unsigned boolean_constant; | |
96 | opcode_field *parent; | |
97 | }; | |
98 | ||
99 | ||
100 | /****************************************************************/ | |
101 | ||
102 | typedef struct _insn_bits insn_bits; | |
103 | struct _insn_bits { | |
104 | int is_expanded; | |
105 | int value; | |
106 | insn_field *field; | |
107 | opcode_field *opcode; | |
108 | insn_bits *last; | |
109 | }; | |
110 | ||
111 | ||
112 | /****************************************************************/ | |
113 | ||
114 | ||
115 | typedef enum { | |
116 | insn_format, | |
117 | insn_form, | |
118 | insn_flags, | |
119 | insn_mnemonic, | |
120 | insn_name, | |
121 | insn_comment, | |
122 | nr_insn_table_fields | |
123 | } insn_table_fields; | |
124 | ||
125 | typedef enum { | |
126 | function_type = insn_format, | |
127 | function_name = insn_name, | |
128 | function_param = insn_comment | |
129 | } function_table_fields; | |
130 | ||
131 | typedef enum { | |
132 | model_name = insn_mnemonic, | |
133 | model_identifer = insn_name, | |
134 | model_default = insn_comment, | |
135 | } model_table_fields; | |
136 | ||
43c4bab0 MG |
137 | typedef enum { |
138 | include_flags = insn_flags, | |
139 | include_path = insn_name, | |
140 | } model_include_fields; | |
141 | ||
c906108c SS |
142 | typedef struct _insn insn; |
143 | struct _insn { | |
144 | table_entry *file_entry; | |
145 | insn_fields *fields; | |
146 | insn *next; | |
147 | }; | |
148 | ||
149 | typedef struct _insn_undef insn_undef; | |
150 | struct _insn_undef { | |
151 | insn_undef *next; | |
152 | char *name; | |
153 | }; | |
154 | ||
155 | typedef struct _model model; | |
156 | struct _model { | |
157 | model *next; | |
158 | char *name; | |
159 | char *printable_name; | |
160 | char *insn_default; | |
161 | table_model_entry *func_unit_start; | |
162 | table_model_entry *func_unit_end; | |
163 | }; | |
164 | ||
165 | typedef struct _insn_table insn_table; | |
166 | struct _insn_table { | |
167 | int opcode_nr; | |
168 | insn_bits *expanded_bits; | |
169 | int nr_insn; | |
170 | insn *insns; | |
171 | insn *functions; | |
172 | insn *last_function; | |
173 | decode_table *opcode_rule; | |
174 | opcode_field *opcode; | |
175 | int nr_entries; | |
176 | insn_table *entries; | |
177 | insn_table *sibling; | |
178 | insn_table *parent; | |
179 | }; | |
180 | ||
181 | typedef enum { | |
182 | insn_model_name, | |
183 | insn_model_fields, | |
184 | nr_insn_model_table_fields | |
185 | } insn_model_table_fields; | |
186 | ||
187 | ||
188 | extern insn_table *load_insn_table | |
189 | (const char *file_name, | |
190 | decode_table *decode_rules, | |
43c4bab0 MG |
191 | filter *filters, |
192 | table_include *includes); | |
c906108c SS |
193 | |
194 | model *models; | |
195 | model *last_model; | |
196 | ||
197 | insn *model_macros; | |
198 | insn *last_model_macro; | |
199 | ||
200 | insn *model_functions; | |
201 | insn *last_model_function; | |
202 | ||
203 | insn *model_internal; | |
204 | insn *last_model_internal; | |
205 | ||
206 | insn *model_static; | |
207 | insn *last_model_static; | |
208 | ||
209 | insn *model_data; | |
210 | insn *last_model_data; | |
211 | ||
212 | int max_model_fields_len; | |
213 | ||
214 | extern void insn_table_insert_insn | |
215 | (insn_table *table, | |
216 | table_entry *file_entry, | |
217 | insn_fields *fields); | |
218 | ||
219 | ||
220 | /****************************************************************/ | |
221 | ||
222 | /****************************************************************/ | |
223 | ||
224 | typedef void leaf_handler | |
225 | (insn_table *entry, | |
226 | lf *file, | |
227 | void *data, | |
228 | int depth); | |
229 | ||
230 | typedef void insn_handler | |
231 | (insn_table *table, | |
232 | lf *file, | |
233 | void *data, | |
234 | insn *instruction, | |
235 | int depth); | |
236 | ||
237 | typedef void padding_handler | |
238 | (insn_table *table, | |
239 | lf *file, | |
240 | void *data, | |
241 | int depth, | |
242 | int opcode_nr); | |
243 | ||
244 | ||
245 | extern void insn_table_traverse_tree | |
246 | (insn_table *table, | |
247 | lf *file, | |
248 | void *data, | |
249 | int depth, | |
250 | leaf_handler *start, | |
251 | insn_handler *handler, | |
252 | leaf_handler *end, | |
253 | padding_handler *padding); | |
254 | ||
255 | ||
256 | extern void insn_table_traverse_insn | |
257 | (insn_table *table, | |
258 | lf *file, | |
259 | void *data, | |
260 | insn_handler *handler); | |
261 | ||
262 | ||
263 | ||
264 | /****************************************************************/ | |
265 | ||
266 | typedef void function_handler | |
267 | (insn_table *table, | |
268 | lf *file, | |
269 | void *data, | |
270 | table_entry *function); | |
271 | ||
272 | extern void | |
273 | insn_table_traverse_function | |
274 | (insn_table *table, | |
275 | lf *file, | |
276 | void *data, | |
277 | function_handler *leaf); | |
278 | ||
279 | /****************************************************************/ | |
280 | ||
281 | ||
282 | ||
283 | extern void insn_table_expand_insns | |
284 | (insn_table *table); | |
285 | ||
286 | extern int insn_table_depth | |
287 | (insn_table *table); |