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b85e4829 AC |
1 | /* The common simulator framework for GDB, the GNU Debugger. |
2 | ||
e2882c85 | 3 | Copyright 2002-2018 Free Software Foundation, Inc. |
b85e4829 AC |
4 | |
5 | Contributed by Andrew Cagney and Red Hat. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
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 | |
4744ac1b | 11 | the Free Software Foundation; either version 3 of the License, or |
b85e4829 AC |
12 | (at your option) any later version. |
13 | ||
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. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
4744ac1b | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | ||
23 | #ifndef _SIM_BITS_C_ | |
24 | #define _SIM_BITS_C_ | |
25 | ||
26 | #include "sim-basics.h" | |
27 | #include "sim-assert.h" | |
28 | #include "sim-io.h" | |
29 | ||
30 | ||
31 | INLINE_SIM_BITS\ | |
32 | (unsigned_word) | |
33 | LSMASKED (unsigned_word val, | |
34 | int start, | |
35 | int stop) | |
36 | { | |
37 | /* NOTE - start, stop can wrap */ | |
38 | val &= LSMASK (start, stop); | |
39 | return val; | |
40 | } | |
41 | ||
42 | ||
43 | INLINE_SIM_BITS\ | |
44 | (unsigned_word) | |
45 | MSMASKED (unsigned_word val, | |
46 | int start, | |
47 | int stop) | |
48 | { | |
49 | /* NOTE - start, stop can wrap */ | |
50 | val &= MSMASK (start, stop); | |
51 | return val; | |
52 | } | |
53 | ||
54 | ||
55 | INLINE_SIM_BITS\ | |
56 | (unsigned_word) | |
57 | LSEXTRACTED (unsigned_word val, | |
58 | int start, | |
59 | int stop) | |
60 | { | |
61 | ASSERT (start >= stop); | |
62 | #if (WITH_TARGET_WORD_BITSIZE == 64) | |
63 | return LSEXTRACTED64 (val, start, stop); | |
64 | #endif | |
65 | #if (WITH_TARGET_WORD_BITSIZE == 32) | |
66 | if (stop >= 32) | |
67 | return 0; | |
68 | else | |
69 | { | |
70 | if (start < 32) | |
71 | val &= LSMASK (start, 0); | |
72 | val >>= stop; | |
73 | return val; | |
74 | } | |
75 | #endif | |
3c765a54 AC |
76 | #if (WITH_TARGET_WORD_BITSIZE == 16) |
77 | if (stop >= 16) | |
78 | return 0; | |
79 | else | |
80 | { | |
81 | if (start < 16) | |
82 | val &= LSMASK (start, 0); | |
83 | val >>= stop; | |
84 | return val; | |
85 | } | |
86 | #endif | |
c906108c SS |
87 | } |
88 | ||
89 | ||
90 | INLINE_SIM_BITS\ | |
91 | (unsigned_word) | |
92 | MSEXTRACTED (unsigned_word val, | |
93 | int start, | |
94 | int stop) | |
95 | { | |
96 | ASSERT (start <= stop); | |
97 | #if (WITH_TARGET_WORD_BITSIZE == 64) | |
98 | return MSEXTRACTED64 (val, start, stop); | |
99 | #endif | |
100 | #if (WITH_TARGET_WORD_BITSIZE == 32) | |
101 | if (stop < 32) | |
102 | return 0; | |
103 | else | |
104 | { | |
105 | if (start >= 32) | |
106 | val &= MSMASK (start, 64 - 1); | |
107 | val >>= (64 - stop - 1); | |
108 | return val; | |
109 | } | |
110 | #endif | |
3c765a54 AC |
111 | #if (WITH_TARGET_WORD_BITSIZE == 16) |
112 | if (stop < 16) | |
113 | return 0; | |
114 | else | |
115 | { | |
116 | if (start >= 16) | |
117 | val &= MSMASK (start, 64 - 1); | |
118 | val >>= (64 - stop - 1); | |
119 | return val; | |
120 | } | |
121 | #endif | |
c906108c SS |
122 | } |
123 | ||
124 | ||
125 | INLINE_SIM_BITS\ | |
126 | (unsigned_word) | |
127 | LSINSERTED (unsigned_word val, | |
128 | int start, | |
129 | int stop) | |
130 | { | |
131 | ASSERT (start >= stop); | |
132 | #if (WITH_TARGET_WORD_BITSIZE == 64) | |
133 | return LSINSERTED64 (val, start, stop); | |
134 | #endif | |
135 | #if (WITH_TARGET_WORD_BITSIZE == 32) | |
136 | /* Bit numbers are 63..0, even for 32 bit targets. | |
137 | On 32 bit targets we ignore 63..32 */ | |
138 | if (stop >= 32) | |
139 | return 0; | |
140 | else | |
141 | { | |
142 | val <<= stop; | |
143 | val &= LSMASK (start, stop); | |
144 | return val; | |
145 | } | |
146 | #endif | |
3c765a54 AC |
147 | #if (WITH_TARGET_WORD_BITSIZE == 16) |
148 | /* Bit numbers are 63..0, even for 16 bit targets. | |
149 | On 16 bit targets we ignore 63..16 */ | |
150 | if (stop >= 16) | |
151 | return 0; | |
152 | else | |
153 | { | |
154 | val <<= stop; | |
155 | val &= LSMASK (start, stop); | |
156 | return val; | |
157 | } | |
158 | #endif | |
c906108c SS |
159 | } |
160 | ||
161 | INLINE_SIM_BITS\ | |
162 | (unsigned_word) | |
163 | MSINSERTED (unsigned_word val, | |
164 | int start, | |
165 | int stop) | |
166 | { | |
167 | ASSERT (start <= stop); | |
168 | #if (WITH_TARGET_WORD_BITSIZE == 64) | |
169 | return MSINSERTED64 (val, start, stop); | |
170 | #endif | |
171 | #if (WITH_TARGET_WORD_BITSIZE == 32) | |
172 | /* Bit numbers are 0..63, even for 32 bit targets. | |
173 | On 32 bit targets we ignore 0..31. */ | |
174 | if (stop < 32) | |
175 | return 0; | |
176 | else | |
177 | { | |
178 | val <<= ((64 - 1) - stop); | |
179 | val &= MSMASK (start, stop); | |
180 | return val; | |
181 | } | |
182 | #endif | |
3c765a54 AC |
183 | #if (WITH_TARGET_WORD_BITSIZE == 16) |
184 | /* Bit numbers are 0..63, even for 16 bit targets. | |
185 | On 16 bit targets we ignore 0..47. */ | |
186 | if (stop < 32 + 16) | |
187 | return 0; | |
188 | else | |
189 | { | |
190 | val <<= ((64 - 1) - stop); | |
191 | val &= MSMASK (start, stop); | |
192 | return val; | |
193 | } | |
194 | #endif | |
c906108c SS |
195 | } |
196 | ||
197 | ||
198 | ||
199 | INLINE_SIM_BITS\ | |
200 | (unsigned_word) | |
201 | LSSEXT (signed_word val, | |
202 | int sign_bit) | |
203 | { | |
204 | ASSERT (sign_bit < 64); | |
205 | #if (WITH_TARGET_WORD_BITSIZE == 64) | |
206 | return LSSEXT64 (val, sign_bit); | |
207 | #endif | |
208 | #if (WITH_TARGET_WORD_BITSIZE == 32) | |
209 | if (sign_bit >= 32) | |
210 | return val; | |
211 | else { | |
212 | val = LSSEXT32 (val, sign_bit); | |
213 | return val; | |
214 | } | |
215 | #endif | |
3c765a54 AC |
216 | #if (WITH_TARGET_WORD_BITSIZE == 16) |
217 | if (sign_bit >= 16) | |
218 | return val; | |
219 | else { | |
220 | val = LSSEXT16 (val, sign_bit); | |
221 | return val; | |
222 | } | |
223 | #endif | |
c906108c SS |
224 | } |
225 | ||
226 | INLINE_SIM_BITS\ | |
227 | (unsigned_word) | |
228 | MSSEXT (signed_word val, | |
229 | int sign_bit) | |
230 | { | |
231 | ASSERT (sign_bit < 64); | |
232 | #if (WITH_TARGET_WORD_BITSIZE == 64) | |
233 | return MSSEXT64 (val, sign_bit); | |
234 | #endif | |
235 | #if (WITH_TARGET_WORD_BITSIZE == 32) | |
236 | if (sign_bit < 32) | |
237 | return val; | |
238 | else { | |
239 | val = MSSEXT32 (val, sign_bit - 32); | |
240 | return val; | |
241 | } | |
242 | #endif | |
3c765a54 AC |
243 | #if (WITH_TARGET_WORD_BITSIZE == 16) |
244 | if (sign_bit < 32 + 16) | |
245 | return val; | |
246 | else { | |
247 | val = MSSEXT16 (val, sign_bit - 32 - 16); | |
248 | return val; | |
249 | } | |
250 | #endif | |
c906108c SS |
251 | } |
252 | ||
253 | ||
254 | ||
255 | #define N 8 | |
256 | #include "sim-n-bits.h" | |
257 | #undef N | |
258 | ||
259 | #define N 16 | |
260 | #include "sim-n-bits.h" | |
261 | #undef N | |
262 | ||
263 | #define N 32 | |
264 | #include "sim-n-bits.h" | |
265 | #undef N | |
266 | ||
267 | #define N 64 | |
268 | #include "sim-n-bits.h" | |
269 | #undef N | |
270 | ||
271 | #endif /* _SIM_BITS_C_ */ |