root / target-i386 / exec.h @ 4796f5e9
History | View | Annotate | Download (12.2 kB)
1 |
/*
|
---|---|
2 |
* i386 execution defines
|
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 |
#include "dyngen-exec.h" |
21 |
|
22 |
/* at least 4 register variables are defines */
|
23 |
register struct CPUX86State *env asm(AREG0); |
24 |
register uint32_t T0 asm(AREG1); |
25 |
register uint32_t T1 asm(AREG2); |
26 |
register uint32_t T2 asm(AREG3); |
27 |
|
28 |
#define A0 T2
|
29 |
|
30 |
/* if more registers are available, we define some registers too */
|
31 |
#ifdef AREG4
|
32 |
register uint32_t EAX asm(AREG4); |
33 |
#define reg_EAX
|
34 |
#endif
|
35 |
|
36 |
#ifdef AREG5
|
37 |
register uint32_t ESP asm(AREG5); |
38 |
#define reg_ESP
|
39 |
#endif
|
40 |
|
41 |
#ifdef AREG6
|
42 |
register uint32_t EBP asm(AREG6); |
43 |
#define reg_EBP
|
44 |
#endif
|
45 |
|
46 |
#ifdef AREG7
|
47 |
register uint32_t ECX asm(AREG7); |
48 |
#define reg_ECX
|
49 |
#endif
|
50 |
|
51 |
#ifdef AREG8
|
52 |
register uint32_t EDX asm(AREG8); |
53 |
#define reg_EDX
|
54 |
#endif
|
55 |
|
56 |
#ifdef AREG9
|
57 |
register uint32_t EBX asm(AREG9); |
58 |
#define reg_EBX
|
59 |
#endif
|
60 |
|
61 |
#ifdef AREG10
|
62 |
register uint32_t ESI asm(AREG10); |
63 |
#define reg_ESI
|
64 |
#endif
|
65 |
|
66 |
#ifdef AREG11
|
67 |
register uint32_t EDI asm(AREG11); |
68 |
#define reg_EDI
|
69 |
#endif
|
70 |
|
71 |
extern FILE *logfile;
|
72 |
extern int loglevel; |
73 |
|
74 |
#ifndef reg_EAX
|
75 |
#define EAX (env->regs[R_EAX])
|
76 |
#endif
|
77 |
#ifndef reg_ECX
|
78 |
#define ECX (env->regs[R_ECX])
|
79 |
#endif
|
80 |
#ifndef reg_EDX
|
81 |
#define EDX (env->regs[R_EDX])
|
82 |
#endif
|
83 |
#ifndef reg_EBX
|
84 |
#define EBX (env->regs[R_EBX])
|
85 |
#endif
|
86 |
#ifndef reg_ESP
|
87 |
#define ESP (env->regs[R_ESP])
|
88 |
#endif
|
89 |
#ifndef reg_EBP
|
90 |
#define EBP (env->regs[R_EBP])
|
91 |
#endif
|
92 |
#ifndef reg_ESI
|
93 |
#define ESI (env->regs[R_ESI])
|
94 |
#endif
|
95 |
#ifndef reg_EDI
|
96 |
#define EDI (env->regs[R_EDI])
|
97 |
#endif
|
98 |
#define EIP (env->eip)
|
99 |
#define DF (env->df)
|
100 |
|
101 |
#define CC_SRC (env->cc_src)
|
102 |
#define CC_DST (env->cc_dst)
|
103 |
#define CC_OP (env->cc_op)
|
104 |
|
105 |
/* float macros */
|
106 |
#define FT0 (env->ft0)
|
107 |
#define ST0 (env->fpregs[env->fpstt])
|
108 |
#define ST(n) (env->fpregs[(env->fpstt + (n)) & 7]) |
109 |
#define ST1 ST(1) |
110 |
|
111 |
#ifdef USE_FP_CONVERT
|
112 |
#define FP_CONVERT (env->fp_convert)
|
113 |
#endif
|
114 |
|
115 |
#include "cpu.h" |
116 |
#include "exec-all.h" |
117 |
|
118 |
typedef struct CCTable { |
119 |
int (*compute_all)(void); /* return all the flags */ |
120 |
int (*compute_c)(void); /* return the C flag */ |
121 |
} CCTable; |
122 |
|
123 |
extern CCTable cc_table[];
|
124 |
|
125 |
void load_seg(int seg_reg, int selector); |
126 |
void helper_ljmp_protected_T0_T1(void); |
127 |
void helper_lcall_real_T0_T1(int shift, int next_eip); |
128 |
void helper_lcall_protected_T0_T1(int shift, int next_eip); |
129 |
void helper_iret_real(int shift); |
130 |
void helper_iret_protected(int shift); |
131 |
void helper_lret_protected(int shift, int addend); |
132 |
void helper_lldt_T0(void); |
133 |
void helper_ltr_T0(void); |
134 |
void helper_movl_crN_T0(int reg); |
135 |
void helper_movl_drN_T0(int reg); |
136 |
void helper_invlpg(unsigned int addr); |
137 |
void cpu_x86_update_cr0(CPUX86State *env);
|
138 |
void cpu_x86_update_cr3(CPUX86State *env);
|
139 |
void cpu_x86_flush_tlb(CPUX86State *env, uint32_t addr);
|
140 |
int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr,
|
141 |
int is_write, int is_user, int is_softmmu); |
142 |
void tlb_fill(unsigned long addr, int is_write, int is_user, |
143 |
void *retaddr);
|
144 |
void __hidden cpu_lock(void); |
145 |
void __hidden cpu_unlock(void); |
146 |
void do_interrupt(int intno, int is_int, int error_code, |
147 |
unsigned int next_eip, int is_hw); |
148 |
void do_interrupt_user(int intno, int is_int, int error_code, |
149 |
unsigned int next_eip); |
150 |
void raise_interrupt(int intno, int is_int, int error_code, |
151 |
unsigned int next_eip); |
152 |
void raise_exception_err(int exception_index, int error_code); |
153 |
void raise_exception(int exception_index); |
154 |
void __hidden cpu_loop_exit(void); |
155 |
void helper_fsave(uint8_t *ptr, int data32); |
156 |
void helper_frstor(uint8_t *ptr, int data32); |
157 |
|
158 |
void OPPROTO op_movl_eflags_T0(void); |
159 |
void OPPROTO op_movl_T0_eflags(void); |
160 |
void raise_interrupt(int intno, int is_int, int error_code, |
161 |
unsigned int next_eip); |
162 |
void raise_exception_err(int exception_index, int error_code); |
163 |
void raise_exception(int exception_index); |
164 |
void helper_divl_EAX_T0(uint32_t eip);
|
165 |
void helper_idivl_EAX_T0(uint32_t eip);
|
166 |
void helper_cmpxchg8b(void); |
167 |
void helper_cpuid(void); |
168 |
void helper_rdtsc(void); |
169 |
void helper_rdmsr(void); |
170 |
void helper_wrmsr(void); |
171 |
void helper_lsl(void); |
172 |
void helper_lar(void); |
173 |
void helper_verr(void); |
174 |
void helper_verw(void); |
175 |
|
176 |
void check_iob_T0(void); |
177 |
void check_iow_T0(void); |
178 |
void check_iol_T0(void); |
179 |
void check_iob_DX(void); |
180 |
void check_iow_DX(void); |
181 |
void check_iol_DX(void); |
182 |
|
183 |
/* XXX: move that to a generic header */
|
184 |
#if !defined(CONFIG_USER_ONLY)
|
185 |
|
186 |
#define ldul_user ldl_user
|
187 |
#define ldul_kernel ldl_kernel
|
188 |
|
189 |
#define ACCESS_TYPE 0 |
190 |
#define MEMSUFFIX _kernel
|
191 |
#define DATA_SIZE 1 |
192 |
#include "softmmu_header.h" |
193 |
|
194 |
#define DATA_SIZE 2 |
195 |
#include "softmmu_header.h" |
196 |
|
197 |
#define DATA_SIZE 4 |
198 |
#include "softmmu_header.h" |
199 |
|
200 |
#define DATA_SIZE 8 |
201 |
#include "softmmu_header.h" |
202 |
#undef ACCESS_TYPE
|
203 |
#undef MEMSUFFIX
|
204 |
|
205 |
#define ACCESS_TYPE 1 |
206 |
#define MEMSUFFIX _user
|
207 |
#define DATA_SIZE 1 |
208 |
#include "softmmu_header.h" |
209 |
|
210 |
#define DATA_SIZE 2 |
211 |
#include "softmmu_header.h" |
212 |
|
213 |
#define DATA_SIZE 4 |
214 |
#include "softmmu_header.h" |
215 |
|
216 |
#define DATA_SIZE 8 |
217 |
#include "softmmu_header.h" |
218 |
#undef ACCESS_TYPE
|
219 |
#undef MEMSUFFIX
|
220 |
|
221 |
/* these access are slower, they must be as rare as possible */
|
222 |
#define ACCESS_TYPE 2 |
223 |
#define MEMSUFFIX _data
|
224 |
#define DATA_SIZE 1 |
225 |
#include "softmmu_header.h" |
226 |
|
227 |
#define DATA_SIZE 2 |
228 |
#include "softmmu_header.h" |
229 |
|
230 |
#define DATA_SIZE 4 |
231 |
#include "softmmu_header.h" |
232 |
|
233 |
#define DATA_SIZE 8 |
234 |
#include "softmmu_header.h" |
235 |
#undef ACCESS_TYPE
|
236 |
#undef MEMSUFFIX
|
237 |
|
238 |
#define ldub(p) ldub_data(p)
|
239 |
#define ldsb(p) ldsb_data(p)
|
240 |
#define lduw(p) lduw_data(p)
|
241 |
#define ldsw(p) ldsw_data(p)
|
242 |
#define ldl(p) ldl_data(p)
|
243 |
#define ldq(p) ldq_data(p)
|
244 |
|
245 |
#define stb(p, v) stb_data(p, v)
|
246 |
#define stw(p, v) stw_data(p, v)
|
247 |
#define stl(p, v) stl_data(p, v)
|
248 |
#define stq(p, v) stq_data(p, v)
|
249 |
|
250 |
static inline double ldfq(void *ptr) |
251 |
{ |
252 |
union {
|
253 |
double d;
|
254 |
uint64_t i; |
255 |
} u; |
256 |
u.i = ldq(ptr); |
257 |
return u.d;
|
258 |
} |
259 |
|
260 |
static inline void stfq(void *ptr, double v) |
261 |
{ |
262 |
union {
|
263 |
double d;
|
264 |
uint64_t i; |
265 |
} u; |
266 |
u.d = v; |
267 |
stq(ptr, u.i); |
268 |
} |
269 |
|
270 |
static inline float ldfl(void *ptr) |
271 |
{ |
272 |
union {
|
273 |
float f;
|
274 |
uint32_t i; |
275 |
} u; |
276 |
u.i = ldl(ptr); |
277 |
return u.f;
|
278 |
} |
279 |
|
280 |
static inline void stfl(void *ptr, float v) |
281 |
{ |
282 |
union {
|
283 |
float f;
|
284 |
uint32_t i; |
285 |
} u; |
286 |
u.f = v; |
287 |
stl(ptr, u.i); |
288 |
} |
289 |
|
290 |
#endif /* !defined(CONFIG_USER_ONLY) */ |
291 |
|
292 |
#ifdef USE_X86LDOUBLE
|
293 |
/* use long double functions */
|
294 |
#define lrint lrintl
|
295 |
#define llrint llrintl
|
296 |
#define fabs fabsl
|
297 |
#define sin sinl
|
298 |
#define cos cosl
|
299 |
#define sqrt sqrtl
|
300 |
#define pow powl
|
301 |
#define log logl
|
302 |
#define tan tanl
|
303 |
#define atan2 atan2l
|
304 |
#define floor floorl
|
305 |
#define ceil ceill
|
306 |
#define rint rintl
|
307 |
#endif
|
308 |
|
309 |
extern int lrint(CPU86_LDouble x); |
310 |
extern int64_t llrint(CPU86_LDouble x);
|
311 |
extern CPU86_LDouble fabs(CPU86_LDouble x);
|
312 |
extern CPU86_LDouble sin(CPU86_LDouble x);
|
313 |
extern CPU86_LDouble cos(CPU86_LDouble x);
|
314 |
extern CPU86_LDouble sqrt(CPU86_LDouble x);
|
315 |
extern CPU86_LDouble pow(CPU86_LDouble, CPU86_LDouble);
|
316 |
extern CPU86_LDouble log(CPU86_LDouble x);
|
317 |
extern CPU86_LDouble tan(CPU86_LDouble x);
|
318 |
extern CPU86_LDouble atan2(CPU86_LDouble, CPU86_LDouble);
|
319 |
extern CPU86_LDouble floor(CPU86_LDouble x);
|
320 |
extern CPU86_LDouble ceil(CPU86_LDouble x);
|
321 |
extern CPU86_LDouble rint(CPU86_LDouble x);
|
322 |
|
323 |
#define RC_MASK 0xc00 |
324 |
#define RC_NEAR 0x000 |
325 |
#define RC_DOWN 0x400 |
326 |
#define RC_UP 0x800 |
327 |
#define RC_CHOP 0xc00 |
328 |
|
329 |
#define MAXTAN 9223372036854775808.0 |
330 |
|
331 |
#ifdef __arm__
|
332 |
/* we have no way to do correct rounding - a FPU emulator is needed */
|
333 |
#define FE_DOWNWARD FE_TONEAREST
|
334 |
#define FE_UPWARD FE_TONEAREST
|
335 |
#define FE_TOWARDZERO FE_TONEAREST
|
336 |
#endif
|
337 |
|
338 |
#ifdef USE_X86LDOUBLE
|
339 |
|
340 |
/* only for x86 */
|
341 |
typedef union { |
342 |
long double d; |
343 |
struct {
|
344 |
unsigned long long lower; |
345 |
unsigned short upper; |
346 |
} l; |
347 |
} CPU86_LDoubleU; |
348 |
|
349 |
/* the following deal with x86 long double-precision numbers */
|
350 |
#define MAXEXPD 0x7fff |
351 |
#define EXPBIAS 16383 |
352 |
#define EXPD(fp) (fp.l.upper & 0x7fff) |
353 |
#define SIGND(fp) ((fp.l.upper) & 0x8000) |
354 |
#define MANTD(fp) (fp.l.lower)
|
355 |
#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7fff)) | EXPBIAS |
356 |
|
357 |
#else
|
358 |
|
359 |
/* NOTE: arm is horrible as double 32 bit words are stored in big endian ! */
|
360 |
typedef union { |
361 |
double d;
|
362 |
#if !defined(WORDS_BIGENDIAN) && !defined(__arm__)
|
363 |
struct {
|
364 |
uint32_t lower; |
365 |
int32_t upper; |
366 |
} l; |
367 |
#else
|
368 |
struct {
|
369 |
int32_t upper; |
370 |
uint32_t lower; |
371 |
} l; |
372 |
#endif
|
373 |
#ifndef __arm__
|
374 |
int64_t ll; |
375 |
#endif
|
376 |
} CPU86_LDoubleU; |
377 |
|
378 |
/* the following deal with IEEE double-precision numbers */
|
379 |
#define MAXEXPD 0x7ff |
380 |
#define EXPBIAS 1023 |
381 |
#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF) |
382 |
#define SIGND(fp) ((fp.l.upper) & 0x80000000) |
383 |
#ifdef __arm__
|
384 |
#define MANTD(fp) (fp.l.lower | ((uint64_t)(fp.l.upper & ((1 << 20) - 1)) << 32)) |
385 |
#else
|
386 |
#define MANTD(fp) (fp.ll & ((1LL << 52) - 1)) |
387 |
#endif
|
388 |
#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7ff << 20)) | (EXPBIAS << 20) |
389 |
#endif
|
390 |
|
391 |
static inline void fpush(void) |
392 |
{ |
393 |
env->fpstt = (env->fpstt - 1) & 7; |
394 |
env->fptags[env->fpstt] = 0; /* validate stack entry */ |
395 |
} |
396 |
|
397 |
static inline void fpop(void) |
398 |
{ |
399 |
env->fptags[env->fpstt] = 1; /* invvalidate stack entry */ |
400 |
env->fpstt = (env->fpstt + 1) & 7; |
401 |
} |
402 |
|
403 |
#ifndef USE_X86LDOUBLE
|
404 |
static inline CPU86_LDouble helper_fldt(uint8_t *ptr) |
405 |
{ |
406 |
CPU86_LDoubleU temp; |
407 |
int upper, e;
|
408 |
uint64_t ll; |
409 |
|
410 |
/* mantissa */
|
411 |
upper = lduw(ptr + 8);
|
412 |
/* XXX: handle overflow ? */
|
413 |
e = (upper & 0x7fff) - 16383 + EXPBIAS; /* exponent */ |
414 |
e |= (upper >> 4) & 0x800; /* sign */ |
415 |
ll = (ldq(ptr) >> 11) & ((1LL << 52) - 1); |
416 |
#ifdef __arm__
|
417 |
temp.l.upper = (e << 20) | (ll >> 32); |
418 |
temp.l.lower = ll; |
419 |
#else
|
420 |
temp.ll = ll | ((uint64_t)e << 52);
|
421 |
#endif
|
422 |
return temp.d;
|
423 |
} |
424 |
|
425 |
static inline void helper_fstt(CPU86_LDouble f, uint8_t *ptr) |
426 |
{ |
427 |
CPU86_LDoubleU temp; |
428 |
int e;
|
429 |
|
430 |
temp.d = f; |
431 |
/* mantissa */
|
432 |
stq(ptr, (MANTD(temp) << 11) | (1LL << 63)); |
433 |
/* exponent + sign */
|
434 |
e = EXPD(temp) - EXPBIAS + 16383;
|
435 |
e |= SIGND(temp) >> 16;
|
436 |
stw(ptr + 8, e);
|
437 |
} |
438 |
#else
|
439 |
|
440 |
/* XXX: same endianness assumed */
|
441 |
|
442 |
#ifdef CONFIG_USER_ONLY
|
443 |
|
444 |
static inline CPU86_LDouble helper_fldt(uint8_t *ptr) |
445 |
{ |
446 |
return *(CPU86_LDouble *)ptr;
|
447 |
} |
448 |
|
449 |
static inline void helper_fstt(CPU86_LDouble f, uint8_t *ptr) |
450 |
{ |
451 |
*(CPU86_LDouble *)ptr = f; |
452 |
} |
453 |
|
454 |
#else
|
455 |
|
456 |
/* we use memory access macros */
|
457 |
|
458 |
static inline CPU86_LDouble helper_fldt(uint8_t *ptr) |
459 |
{ |
460 |
CPU86_LDoubleU temp; |
461 |
|
462 |
temp.l.lower = ldq(ptr); |
463 |
temp.l.upper = lduw(ptr + 8);
|
464 |
return temp.d;
|
465 |
} |
466 |
|
467 |
static inline void helper_fstt(CPU86_LDouble f, uint8_t *ptr) |
468 |
{ |
469 |
CPU86_LDoubleU temp; |
470 |
|
471 |
temp.d = f; |
472 |
stq(ptr, temp.l.lower); |
473 |
stw(ptr + 8, temp.l.upper);
|
474 |
} |
475 |
|
476 |
#endif /* !CONFIG_USER_ONLY */ |
477 |
|
478 |
#endif /* USE_X86LDOUBLE */ |
479 |
|
480 |
const CPU86_LDouble f15rk[7]; |
481 |
|
482 |
void helper_fldt_ST0_A0(void); |
483 |
void helper_fstt_ST0_A0(void); |
484 |
void helper_fbld_ST0_A0(void); |
485 |
void helper_fbst_ST0_A0(void); |
486 |
void helper_f2xm1(void); |
487 |
void helper_fyl2x(void); |
488 |
void helper_fptan(void); |
489 |
void helper_fpatan(void); |
490 |
void helper_fxtract(void); |
491 |
void helper_fprem1(void); |
492 |
void helper_fprem(void); |
493 |
void helper_fyl2xp1(void); |
494 |
void helper_fsqrt(void); |
495 |
void helper_fsincos(void); |
496 |
void helper_frndint(void); |
497 |
void helper_fscale(void); |
498 |
void helper_fsin(void); |
499 |
void helper_fcos(void); |
500 |
void helper_fxam_ST0(void); |
501 |
void helper_fstenv(uint8_t *ptr, int data32); |
502 |
void helper_fldenv(uint8_t *ptr, int data32); |
503 |
void helper_fsave(uint8_t *ptr, int data32); |
504 |
void helper_frstor(uint8_t *ptr, int data32); |
505 |
|
506 |
const uint8_t parity_table[256]; |
507 |
const uint8_t rclw_table[32]; |
508 |
const uint8_t rclb_table[32]; |
509 |
|
510 |
static inline uint32_t compute_eflags(void) |
511 |
{ |
512 |
return env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK);
|
513 |
} |
514 |
|
515 |
/* NOTE: CC_OP must be modified manually to CC_OP_EFLAGS */
|
516 |
static inline void load_eflags(int eflags, int update_mask) |
517 |
{ |
518 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
519 |
DF = 1 - (2 * ((eflags >> 10) & 1)); |
520 |
env->eflags = (env->eflags & ~update_mask) | |
521 |
(eflags & update_mask); |
522 |
} |
523 |
|