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5a9fdfec FB |
1 | /* |
2 | * defines common to all virtual CPUs | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | #ifndef CPU_ALL_H | |
21 | #define CPU_ALL_H | |
22 | ||
23 | /* all CPU memory access use these macros */ | |
24 | static inline int ldub(void *ptr) | |
25 | { | |
26 | return *(uint8_t *)ptr; | |
27 | } | |
28 | ||
29 | static inline int ldsb(void *ptr) | |
30 | { | |
31 | return *(int8_t *)ptr; | |
32 | } | |
33 | ||
34 | static inline void stb(void *ptr, int v) | |
35 | { | |
36 | *(uint8_t *)ptr = v; | |
37 | } | |
38 | ||
39 | /* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the | |
40 | kernel handles unaligned load/stores may give better results, but | |
41 | it is a system wide setting : bad */ | |
42 | #if defined(WORDS_BIGENDIAN) || defined(__arm__) | |
43 | ||
44 | /* conservative code for little endian unaligned accesses */ | |
45 | static inline int lduw(void *ptr) | |
46 | { | |
47 | #ifdef __powerpc__ | |
48 | int val; | |
49 | __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr)); | |
50 | return val; | |
51 | #else | |
52 | uint8_t *p = ptr; | |
53 | return p[0] | (p[1] << 8); | |
54 | #endif | |
55 | } | |
56 | ||
57 | static inline int ldsw(void *ptr) | |
58 | { | |
59 | #ifdef __powerpc__ | |
60 | int val; | |
61 | __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr)); | |
62 | return (int16_t)val; | |
63 | #else | |
64 | uint8_t *p = ptr; | |
65 | return (int16_t)(p[0] | (p[1] << 8)); | |
66 | #endif | |
67 | } | |
68 | ||
69 | static inline int ldl(void *ptr) | |
70 | { | |
71 | #ifdef __powerpc__ | |
72 | int val; | |
73 | __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr)); | |
74 | return val; | |
75 | #else | |
76 | uint8_t *p = ptr; | |
77 | return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); | |
78 | #endif | |
79 | } | |
80 | ||
81 | static inline uint64_t ldq(void *ptr) | |
82 | { | |
83 | uint8_t *p = ptr; | |
84 | uint32_t v1, v2; | |
85 | v1 = ldl(p); | |
86 | v2 = ldl(p + 4); | |
87 | return v1 | ((uint64_t)v2 << 32); | |
88 | } | |
89 | ||
90 | static inline void stw(void *ptr, int v) | |
91 | { | |
92 | #ifdef __powerpc__ | |
93 | __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr)); | |
94 | #else | |
95 | uint8_t *p = ptr; | |
96 | p[0] = v; | |
97 | p[1] = v >> 8; | |
98 | #endif | |
99 | } | |
100 | ||
101 | static inline void stl(void *ptr, int v) | |
102 | { | |
103 | #ifdef __powerpc__ | |
104 | __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr)); | |
105 | #else | |
106 | uint8_t *p = ptr; | |
107 | p[0] = v; | |
108 | p[1] = v >> 8; | |
109 | p[2] = v >> 16; | |
110 | p[3] = v >> 24; | |
111 | #endif | |
112 | } | |
113 | ||
114 | static inline void stq(void *ptr, uint64_t v) | |
115 | { | |
116 | uint8_t *p = ptr; | |
117 | stl(p, (uint32_t)v); | |
118 | stl(p + 4, v >> 32); | |
119 | } | |
120 | ||
121 | /* float access */ | |
122 | ||
123 | static inline float ldfl(void *ptr) | |
124 | { | |
125 | union { | |
126 | float f; | |
127 | uint32_t i; | |
128 | } u; | |
129 | u.i = ldl(ptr); | |
130 | return u.f; | |
131 | } | |
132 | ||
133 | static inline void stfl(void *ptr, float v) | |
134 | { | |
135 | union { | |
136 | float f; | |
137 | uint32_t i; | |
138 | } u; | |
139 | u.f = v; | |
140 | stl(ptr, u.i); | |
141 | } | |
142 | ||
143 | #if defined(__arm__) && !defined(WORDS_BIGENDIAN) | |
144 | ||
145 | /* NOTE: arm is horrible as double 32 bit words are stored in big endian ! */ | |
146 | static inline double ldfq(void *ptr) | |
147 | { | |
148 | union { | |
149 | double d; | |
150 | uint32_t tab[2]; | |
151 | } u; | |
152 | u.tab[1] = ldl(ptr); | |
153 | u.tab[0] = ldl(ptr + 4); | |
154 | return u.d; | |
155 | } | |
156 | ||
157 | static inline void stfq(void *ptr, double v) | |
158 | { | |
159 | union { | |
160 | double d; | |
161 | uint32_t tab[2]; | |
162 | } u; | |
163 | u.d = v; | |
164 | stl(ptr, u.tab[1]); | |
165 | stl(ptr + 4, u.tab[0]); | |
166 | } | |
167 | ||
168 | #else | |
169 | static inline double ldfq(void *ptr) | |
170 | { | |
171 | union { | |
172 | double d; | |
173 | uint64_t i; | |
174 | } u; | |
175 | u.i = ldq(ptr); | |
176 | return u.d; | |
177 | } | |
178 | ||
179 | static inline void stfq(void *ptr, double v) | |
180 | { | |
181 | union { | |
182 | double d; | |
183 | uint64_t i; | |
184 | } u; | |
185 | u.d = v; | |
186 | stq(ptr, u.i); | |
187 | } | |
188 | #endif | |
189 | ||
190 | #else | |
191 | ||
192 | static inline int lduw(void *ptr) | |
193 | { | |
194 | return *(uint16_t *)ptr; | |
195 | } | |
196 | ||
197 | static inline int ldsw(void *ptr) | |
198 | { | |
199 | return *(int16_t *)ptr; | |
200 | } | |
201 | ||
202 | static inline int ldl(void *ptr) | |
203 | { | |
204 | return *(uint32_t *)ptr; | |
205 | } | |
206 | ||
207 | static inline uint64_t ldq(void *ptr) | |
208 | { | |
209 | return *(uint64_t *)ptr; | |
210 | } | |
211 | ||
212 | static inline void stw(void *ptr, int v) | |
213 | { | |
214 | *(uint16_t *)ptr = v; | |
215 | } | |
216 | ||
217 | static inline void stl(void *ptr, int v) | |
218 | { | |
219 | *(uint32_t *)ptr = v; | |
220 | } | |
221 | ||
222 | static inline void stq(void *ptr, uint64_t v) | |
223 | { | |
224 | *(uint64_t *)ptr = v; | |
225 | } | |
226 | ||
227 | /* float access */ | |
228 | ||
229 | static inline float ldfl(void *ptr) | |
230 | { | |
231 | return *(float *)ptr; | |
232 | } | |
233 | ||
234 | static inline double ldfq(void *ptr) | |
235 | { | |
236 | return *(double *)ptr; | |
237 | } | |
238 | ||
239 | static inline void stfl(void *ptr, float v) | |
240 | { | |
241 | *(float *)ptr = v; | |
242 | } | |
243 | ||
244 | static inline void stfq(void *ptr, double v) | |
245 | { | |
246 | *(double *)ptr = v; | |
247 | } | |
248 | #endif | |
249 | ||
250 | /* page related stuff */ | |
251 | ||
252 | #define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS) | |
253 | #define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1) | |
254 | #define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK) | |
255 | ||
256 | extern unsigned long real_host_page_size; | |
257 | extern unsigned long host_page_bits; | |
258 | extern unsigned long host_page_size; | |
259 | extern unsigned long host_page_mask; | |
260 | ||
261 | #define HOST_PAGE_ALIGN(addr) (((addr) + host_page_size - 1) & host_page_mask) | |
262 | ||
263 | /* same as PROT_xxx */ | |
264 | #define PAGE_READ 0x0001 | |
265 | #define PAGE_WRITE 0x0002 | |
266 | #define PAGE_EXEC 0x0004 | |
267 | #define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC) | |
268 | #define PAGE_VALID 0x0008 | |
269 | /* original state of the write flag (used when tracking self-modifying | |
270 | code */ | |
271 | #define PAGE_WRITE_ORG 0x0010 | |
272 | ||
273 | void page_dump(FILE *f); | |
274 | int page_get_flags(unsigned long address); | |
275 | void page_set_flags(unsigned long start, unsigned long end, int flags); | |
276 | void page_unprotect_range(uint8_t *data, unsigned long data_size); | |
277 | ||
278 | #define SINGLE_CPU_DEFINES | |
279 | #ifdef SINGLE_CPU_DEFINES | |
280 | ||
281 | #if defined(TARGET_I386) | |
282 | ||
283 | #define CPUState CPUX86State | |
284 | #define cpu_init cpu_x86_init | |
285 | #define cpu_exec cpu_x86_exec | |
286 | #define cpu_gen_code cpu_x86_gen_code | |
287 | #define cpu_interrupt cpu_x86_interrupt | |
288 | #define cpu_signal_handler cpu_x86_signal_handler | |
289 | ||
290 | #elif defined(TARGET_ARM) | |
291 | ||
292 | #define CPUState CPUARMState | |
293 | #define cpu_init cpu_arm_init | |
294 | #define cpu_exec cpu_arm_exec | |
295 | #define cpu_gen_code cpu_arm_gen_code | |
296 | #define cpu_interrupt cpu_arm_interrupt | |
297 | #define cpu_signal_handler cpu_arm_signal_handler | |
298 | ||
299 | #else | |
300 | ||
301 | #error unsupported target CPU | |
302 | ||
303 | #endif | |
304 | ||
972ddf78 FB |
305 | #endif /* SINGLE_CPU_DEFINES */ |
306 | ||
3b0dca51 FB |
307 | #define DEFAULT_GDBSTUB_PORT 1234 |
308 | ||
972ddf78 | 309 | void cpu_abort(CPUState *env, const char *fmt, ...); |
e2f22898 | 310 | extern CPUState *cpu_single_env; |
5a9fdfec | 311 | |
68a79315 FB |
312 | #define CPU_INTERRUPT_EXIT 0x01 /* wants exit from main loop */ |
313 | #define CPU_INTERRUPT_HARD 0x02 /* hardware interrupt pending */ | |
314 | void cpu_interrupt(CPUX86State *s, int mask); | |
315 | ||
3b0dca51 FB |
316 | /* gdb stub API */ |
317 | extern int gdbstub_fd; | |
318 | CPUState *cpu_gdbstub_get_env(void *opaque); | |
319 | int cpu_gdbstub(void *opaque, void (*main_loop)(void *opaque), int port); | |
320 | ||
5a9fdfec | 321 | #endif /* CPU_ALL_H */ |