2 * i386 micro operations
4 * Copyright (c) 2003 Fabrice Bellard
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.
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.
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
22 /* n must be a constant to be efficient */
23 static inline int lshift(int x
, int n
)
31 /* we define the various pieces of code used by the JIT */
35 #include "opreg_template.h"
41 #include "opreg_template.h"
47 #include "opreg_template.h"
53 #include "opreg_template.h"
59 #include "opreg_template.h"
65 #include "opreg_template.h"
71 #include "opreg_template.h"
77 #include "opreg_template.h"
81 /* operations with flags */
83 /* update flags with T0 and T1 (add/sub case) */
84 void OPPROTO
op_update2_cc(void)
90 /* update flags with T0 (logic operation case) */
91 void OPPROTO
op_update1_cc(void)
96 void OPPROTO
op_update_neg_cc(void)
102 void OPPROTO
op_cmpl_T0_T1_cc(void)
108 void OPPROTO
op_update_inc_cc(void)
110 CC_SRC
= cc_table
[CC_OP
].compute_c();
114 void OPPROTO
op_testl_T0_T1_cc(void)
119 /* operations without flags */
121 void OPPROTO
op_addl_T0_T1(void)
126 void OPPROTO
op_orl_T0_T1(void)
131 void OPPROTO
op_andl_T0_T1(void)
136 void OPPROTO
op_subl_T0_T1(void)
141 void OPPROTO
op_xorl_T0_T1(void)
146 void OPPROTO
op_negl_T0(void)
151 void OPPROTO
op_incl_T0(void)
156 void OPPROTO
op_decl_T0(void)
161 void OPPROTO
op_notl_T0(void)
166 void OPPROTO
op_bswapl_T0(void)
171 /* multiply/divide */
173 /* XXX: add eflags optimizations */
174 /* XXX: add non P4 style flags */
176 void OPPROTO
op_mulb_AL_T0(void)
179 res
= (uint8_t)EAX
* (uint8_t)T0
;
180 EAX
= (EAX
& 0xffff0000) | res
;
182 CC_SRC
= (res
& 0xff00);
185 void OPPROTO
op_imulb_AL_T0(void)
188 res
= (int8_t)EAX
* (int8_t)T0
;
189 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
191 CC_SRC
= (res
!= (int8_t)res
);
194 void OPPROTO
op_mulw_AX_T0(void)
197 res
= (uint16_t)EAX
* (uint16_t)T0
;
198 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
199 EDX
= (EDX
& 0xffff0000) | ((res
>> 16) & 0xffff);
204 void OPPROTO
op_imulw_AX_T0(void)
207 res
= (int16_t)EAX
* (int16_t)T0
;
208 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
209 EDX
= (EDX
& 0xffff0000) | ((res
>> 16) & 0xffff);
211 CC_SRC
= (res
!= (int16_t)res
);
214 void OPPROTO
op_mull_EAX_T0(void)
217 res
= (uint64_t)((uint32_t)EAX
) * (uint64_t)((uint32_t)T0
);
224 void OPPROTO
op_imull_EAX_T0(void)
227 res
= (int64_t)((int32_t)EAX
) * (int64_t)((int32_t)T0
);
231 CC_SRC
= (res
!= (int32_t)res
);
234 void OPPROTO
op_imulw_T0_T1(void)
237 res
= (int16_t)T0
* (int16_t)T1
;
240 CC_SRC
= (res
!= (int16_t)res
);
243 void OPPROTO
op_imull_T0_T1(void)
246 res
= (int64_t)((int32_t)T0
) * (int64_t)((int32_t)T1
);
249 CC_SRC
= (res
!= (int32_t)res
);
252 /* division, flags are undefined */
253 /* XXX: add exceptions for overflow */
255 void OPPROTO
op_divb_AL_T0(void)
257 unsigned int num
, den
, q
, r
;
259 num
= (EAX
& 0xffff);
263 raise_exception(EXCP00_DIVZ
);
265 q
= (num
/ den
) & 0xff;
266 r
= (num
% den
) & 0xff;
267 EAX
= (EAX
& 0xffff0000) | (r
<< 8) | q
;
270 void OPPROTO
op_idivb_AL_T0(void)
278 raise_exception(EXCP00_DIVZ
);
280 q
= (num
/ den
) & 0xff;
281 r
= (num
% den
) & 0xff;
282 EAX
= (EAX
& 0xffff0000) | (r
<< 8) | q
;
285 void OPPROTO
op_divw_AX_T0(void)
287 unsigned int num
, den
, q
, r
;
289 num
= (EAX
& 0xffff) | ((EDX
& 0xffff) << 16);
293 raise_exception(EXCP00_DIVZ
);
295 q
= (num
/ den
) & 0xffff;
296 r
= (num
% den
) & 0xffff;
297 EAX
= (EAX
& 0xffff0000) | q
;
298 EDX
= (EDX
& 0xffff0000) | r
;
301 void OPPROTO
op_idivw_AX_T0(void)
305 num
= (EAX
& 0xffff) | ((EDX
& 0xffff) << 16);
309 raise_exception(EXCP00_DIVZ
);
311 q
= (num
/ den
) & 0xffff;
312 r
= (num
% den
) & 0xffff;
313 EAX
= (EAX
& 0xffff0000) | q
;
314 EDX
= (EDX
& 0xffff0000) | r
;
317 void OPPROTO
op_divl_EAX_T0(void)
319 helper_divl_EAX_T0(PARAM1
);
322 void OPPROTO
op_idivl_EAX_T0(void)
324 helper_idivl_EAX_T0(PARAM1
);
327 /* constant load & misc op */
329 void OPPROTO
op_movl_T0_im(void)
334 void OPPROTO
op_addl_T0_im(void)
339 void OPPROTO
op_andl_T0_ffff(void)
344 void OPPROTO
op_andl_T0_im(void)
349 void OPPROTO
op_movl_T0_T1(void)
354 void OPPROTO
op_movl_T1_im(void)
359 void OPPROTO
op_addl_T1_im(void)
364 void OPPROTO
op_movl_T1_A0(void)
369 void OPPROTO
op_movl_A0_im(void)
374 void OPPROTO
op_addl_A0_im(void)
379 void OPPROTO
op_addl_A0_AL(void)
384 void OPPROTO
op_andl_A0_ffff(void)
391 #define MEMSUFFIX _raw
394 #if !defined(CONFIG_USER_ONLY)
395 #define MEMSUFFIX _user
398 #define MEMSUFFIX _kernel
402 /* used for bit operations */
404 void OPPROTO
op_add_bitw_A0_T1(void)
406 A0
+= ((int32_t)T1
>> 4) << 1;
409 void OPPROTO
op_add_bitl_A0_T1(void)
411 A0
+= ((int32_t)T1
>> 5) << 2;
416 void OPPROTO
op_jmp_T0(void)
421 void OPPROTO
op_jmp_im(void)
426 void OPPROTO
op_hlt(void)
428 env
->exception_index
= EXCP_HLT
;
432 void OPPROTO
op_debug(void)
434 env
->exception_index
= EXCP_DEBUG
;
438 void OPPROTO
op_raise_interrupt(void)
441 unsigned int next_eip
;
444 raise_interrupt(intno
, 1, 0, next_eip
);
447 void OPPROTO
op_raise_exception(void)
450 exception_index
= PARAM1
;
451 raise_exception(exception_index
);
454 void OPPROTO
op_into(void)
457 eflags
= cc_table
[CC_OP
].compute_all();
459 raise_interrupt(EXCP04_INTO
, 1, 0, PARAM1
);
464 void OPPROTO
op_cli(void)
466 env
->eflags
&= ~IF_MASK
;
469 void OPPROTO
op_sti(void)
471 env
->eflags
|= IF_MASK
;
474 void OPPROTO
op_set_inhibit_irq(void)
476 env
->hflags
|= HF_INHIBIT_IRQ_MASK
;
479 void OPPROTO
op_reset_inhibit_irq(void)
481 env
->hflags
&= ~HF_INHIBIT_IRQ_MASK
;
485 /* vm86plus instructions */
486 void OPPROTO
op_cli_vm(void)
488 env
->eflags
&= ~VIF_MASK
;
491 void OPPROTO
op_sti_vm(void)
493 env
->eflags
|= VIF_MASK
;
494 if (env
->eflags
& VIP_MASK
) {
496 raise_exception(EXCP0D_GPF
);
502 void OPPROTO
op_boundw(void)
505 low
= ldsw((uint8_t *)A0
);
506 high
= ldsw((uint8_t *)A0
+ 2);
508 if (v
< low
|| v
> high
) {
510 raise_exception(EXCP05_BOUND
);
515 void OPPROTO
op_boundl(void)
518 low
= ldl((uint8_t *)A0
);
519 high
= ldl((uint8_t *)A0
+ 4);
521 if (v
< low
|| v
> high
) {
523 raise_exception(EXCP05_BOUND
);
528 void OPPROTO
op_cmpxchg8b(void)
533 void OPPROTO
op_jmp(void)
535 JUMP_TB(op_jmp
, PARAM1
, 0, PARAM2
);
538 void OPPROTO
op_movl_T0_0(void)
543 void OPPROTO
op_exit_tb(void)
548 /* multiple size ops */
553 #include "ops_template.h"
557 #include "ops_template.h"
561 #include "ops_template.h"
566 void OPPROTO
op_movsbl_T0_T0(void)
571 void OPPROTO
op_movzbl_T0_T0(void)
576 void OPPROTO
op_movswl_T0_T0(void)
581 void OPPROTO
op_movzwl_T0_T0(void)
586 void OPPROTO
op_movswl_EAX_AX(void)
591 void OPPROTO
op_movsbw_AX_AL(void)
593 EAX
= (EAX
& 0xffff0000) | ((int8_t)EAX
& 0xffff);
596 void OPPROTO
op_movslq_EDX_EAX(void)
598 EDX
= (int32_t)EAX
>> 31;
601 void OPPROTO
op_movswl_DX_AX(void)
603 EDX
= (EDX
& 0xffff0000) | (((int16_t)EAX
>> 15) & 0xffff);
606 /* string ops helpers */
608 void OPPROTO
op_addl_ESI_T0(void)
613 void OPPROTO
op_addw_ESI_T0(void)
615 ESI
= (ESI
& ~0xffff) | ((ESI
+ T0
) & 0xffff);
618 void OPPROTO
op_addl_EDI_T0(void)
623 void OPPROTO
op_addw_EDI_T0(void)
625 EDI
= (EDI
& ~0xffff) | ((EDI
+ T0
) & 0xffff);
628 void OPPROTO
op_decl_ECX(void)
633 void OPPROTO
op_decw_ECX(void)
635 ECX
= (ECX
& ~0xffff) | ((ECX
- 1) & 0xffff);
640 void op_pushl_T0(void)
644 stl((void *)offset
, T0
);
645 /* modify ESP after to handle exceptions correctly */
649 void op_pushw_T0(void)
653 stw((void *)offset
, T0
);
654 /* modify ESP after to handle exceptions correctly */
658 void op_pushl_ss32_T0(void)
662 stl(env
->segs
[R_SS
].base
+ offset
, T0
);
663 /* modify ESP after to handle exceptions correctly */
667 void op_pushw_ss32_T0(void)
671 stw(env
->segs
[R_SS
].base
+ offset
, T0
);
672 /* modify ESP after to handle exceptions correctly */
676 void op_pushl_ss16_T0(void)
679 offset
= (ESP
- 4) & 0xffff;
680 stl(env
->segs
[R_SS
].base
+ offset
, T0
);
681 /* modify ESP after to handle exceptions correctly */
682 ESP
= (ESP
& ~0xffff) | offset
;
685 void op_pushw_ss16_T0(void)
688 offset
= (ESP
- 2) & 0xffff;
689 stw(env
->segs
[R_SS
].base
+ offset
, T0
);
690 /* modify ESP after to handle exceptions correctly */
691 ESP
= (ESP
& ~0xffff) | offset
;
694 /* NOTE: ESP update is done after */
695 void op_popl_T0(void)
697 T0
= ldl((void *)ESP
);
700 void op_popw_T0(void)
702 T0
= lduw((void *)ESP
);
705 void op_popl_ss32_T0(void)
707 T0
= ldl(env
->segs
[R_SS
].base
+ ESP
);
710 void op_popw_ss32_T0(void)
712 T0
= lduw(env
->segs
[R_SS
].base
+ ESP
);
715 void op_popl_ss16_T0(void)
717 T0
= ldl(env
->segs
[R_SS
].base
+ (ESP
& 0xffff));
720 void op_popw_ss16_T0(void)
722 T0
= lduw(env
->segs
[R_SS
].base
+ (ESP
& 0xffff));
725 void op_addl_ESP_4(void)
730 void op_addl_ESP_2(void)
735 void op_addw_ESP_4(void)
737 ESP
= (ESP
& ~0xffff) | ((ESP
+ 4) & 0xffff);
740 void op_addw_ESP_2(void)
742 ESP
= (ESP
& ~0xffff) | ((ESP
+ 2) & 0xffff);
745 void op_addl_ESP_im(void)
750 void op_addw_ESP_im(void)
752 ESP
= (ESP
& ~0xffff) | ((ESP
+ PARAM1
) & 0xffff);
755 void OPPROTO
op_rdtsc(void)
760 void OPPROTO
op_cpuid(void)
765 void OPPROTO
op_rdmsr(void)
770 void OPPROTO
op_wrmsr(void)
778 void OPPROTO
op_aam(void)
785 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
789 void OPPROTO
op_aad(void)
794 ah
= (EAX
>> 8) & 0xff;
795 al
= ((ah
* base
) + al
) & 0xff;
796 EAX
= (EAX
& ~0xffff) | al
;
800 void OPPROTO
op_aaa(void)
806 eflags
= cc_table
[CC_OP
].compute_all();
809 ah
= (EAX
>> 8) & 0xff;
811 icarry
= (al
> 0xf9);
812 if (((al
& 0x0f) > 9 ) || af
) {
813 al
= (al
+ 6) & 0x0f;
814 ah
= (ah
+ 1 + icarry
) & 0xff;
815 eflags
|= CC_C
| CC_A
;
817 eflags
&= ~(CC_C
| CC_A
);
820 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
824 void OPPROTO
op_aas(void)
830 eflags
= cc_table
[CC_OP
].compute_all();
833 ah
= (EAX
>> 8) & 0xff;
836 if (((al
& 0x0f) > 9 ) || af
) {
837 al
= (al
- 6) & 0x0f;
838 ah
= (ah
- 1 - icarry
) & 0xff;
839 eflags
|= CC_C
| CC_A
;
841 eflags
&= ~(CC_C
| CC_A
);
844 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
848 void OPPROTO
op_daa(void)
853 eflags
= cc_table
[CC_OP
].compute_all();
859 if (((al
& 0x0f) > 9 ) || af
) {
860 al
= (al
+ 6) & 0xff;
863 if ((al
> 0x9f) || cf
) {
864 al
= (al
+ 0x60) & 0xff;
867 EAX
= (EAX
& ~0xff) | al
;
868 /* well, speed is not an issue here, so we compute the flags by hand */
869 eflags
|= (al
== 0) << 6; /* zf */
870 eflags
|= parity_table
[al
]; /* pf */
871 eflags
|= (al
& 0x80); /* sf */
875 void OPPROTO
op_das(void)
880 eflags
= cc_table
[CC_OP
].compute_all();
887 if (((al
& 0x0f) > 9 ) || af
) {
891 al
= (al
- 6) & 0xff;
893 if ((al1
> 0x99) || cf
) {
894 al
= (al
- 0x60) & 0xff;
897 EAX
= (EAX
& ~0xff) | al
;
898 /* well, speed is not an issue here, so we compute the flags by hand */
899 eflags
|= (al
== 0) << 6; /* zf */
900 eflags
|= parity_table
[al
]; /* pf */
901 eflags
|= (al
& 0x80); /* sf */
905 /* segment handling */
907 /* never use it with R_CS */
908 void OPPROTO
op_movl_seg_T0(void)
910 load_seg(PARAM1
, T0
& 0xffff, PARAM2
);
913 /* faster VM86 version */
914 void OPPROTO
op_movl_seg_T0_vm(void)
919 selector
= T0
& 0xffff;
920 /* env->segs[] access */
921 sc
= (SegmentCache
*)((char *)env
+ PARAM1
);
922 sc
->selector
= selector
;
923 sc
->base
= (void *)(selector
<< 4);
926 void OPPROTO
op_movl_T0_seg(void)
928 T0
= env
->segs
[PARAM1
].selector
;
931 void OPPROTO
op_movl_A0_seg(void)
933 A0
= *(unsigned long *)((char *)env
+ PARAM1
);
936 void OPPROTO
op_addl_A0_seg(void)
938 A0
+= *(unsigned long *)((char *)env
+ PARAM1
);
941 void OPPROTO
op_lsl(void)
946 void OPPROTO
op_lar(void)
951 void OPPROTO
op_verr(void)
956 void OPPROTO
op_verw(void)
961 void OPPROTO
op_arpl(void)
963 if ((T0
& 3) < (T1
& 3)) {
964 /* XXX: emulate bug or 0xff3f0000 oring as in bochs ? */
965 T0
= (T0
& ~3) | (T1
& 3);
973 void OPPROTO
op_arpl_update(void)
976 eflags
= cc_table
[CC_OP
].compute_all();
977 CC_SRC
= (eflags
& ~CC_Z
) | T1
;
980 /* T0: segment, T1:eip */
981 void OPPROTO
op_ljmp_protected_T0_T1(void)
983 helper_ljmp_protected_T0_T1();
986 void OPPROTO
op_lcall_real_T0_T1(void)
988 helper_lcall_real_T0_T1(PARAM1
, PARAM2
);
991 void OPPROTO
op_lcall_protected_T0_T1(void)
993 helper_lcall_protected_T0_T1(PARAM1
, PARAM2
);
996 void OPPROTO
op_iret_real(void)
998 helper_iret_real(PARAM1
);
1001 void OPPROTO
op_iret_protected(void)
1003 helper_iret_protected(PARAM1
);
1006 void OPPROTO
op_lret_protected(void)
1008 helper_lret_protected(PARAM1
, PARAM2
);
1011 void OPPROTO
op_lldt_T0(void)
1016 void OPPROTO
op_ltr_T0(void)
1021 /* CR registers access */
1022 void OPPROTO
op_movl_crN_T0(void)
1024 helper_movl_crN_T0(PARAM1
);
1027 /* DR registers access */
1028 void OPPROTO
op_movl_drN_T0(void)
1030 helper_movl_drN_T0(PARAM1
);
1033 void OPPROTO
op_lmsw_T0(void)
1035 /* only 4 lower bits of CR0 are modified */
1036 T0
= (env
->cr
[0] & ~0xf) | (T0
& 0xf);
1037 helper_movl_crN_T0(0);
1040 void OPPROTO
op_invlpg_A0(void)
1045 void OPPROTO
op_movl_T0_env(void)
1047 T0
= *(uint32_t *)((char *)env
+ PARAM1
);
1050 void OPPROTO
op_movl_env_T0(void)
1052 *(uint32_t *)((char *)env
+ PARAM1
) = T0
;
1055 void OPPROTO
op_movl_env_T1(void)
1057 *(uint32_t *)((char *)env
+ PARAM1
) = T1
;
1060 void OPPROTO
op_clts(void)
1062 env
->cr
[0] &= ~CR0_TS_MASK
;
1065 /* flags handling */
1067 /* slow jumps cases : in order to avoid calling a function with a
1068 pointer (which can generate a stack frame on PowerPC), we use
1069 op_setcc to set T0 and then call op_jcc. */
1070 void OPPROTO
op_jcc(void)
1073 JUMP_TB(op_jcc
, PARAM1
, 0, PARAM2
);
1075 JUMP_TB(op_jcc
, PARAM1
, 1, PARAM3
);
1079 void OPPROTO
op_jcc_im(void)
1088 /* slow set cases (compute x86 flags) */
1089 void OPPROTO
op_seto_T0_cc(void)
1092 eflags
= cc_table
[CC_OP
].compute_all();
1093 T0
= (eflags
>> 11) & 1;
1096 void OPPROTO
op_setb_T0_cc(void)
1098 T0
= cc_table
[CC_OP
].compute_c();
1101 void OPPROTO
op_setz_T0_cc(void)
1104 eflags
= cc_table
[CC_OP
].compute_all();
1105 T0
= (eflags
>> 6) & 1;
1108 void OPPROTO
op_setbe_T0_cc(void)
1111 eflags
= cc_table
[CC_OP
].compute_all();
1112 T0
= (eflags
& (CC_Z
| CC_C
)) != 0;
1115 void OPPROTO
op_sets_T0_cc(void)
1118 eflags
= cc_table
[CC_OP
].compute_all();
1119 T0
= (eflags
>> 7) & 1;
1122 void OPPROTO
op_setp_T0_cc(void)
1125 eflags
= cc_table
[CC_OP
].compute_all();
1126 T0
= (eflags
>> 2) & 1;
1129 void OPPROTO
op_setl_T0_cc(void)
1132 eflags
= cc_table
[CC_OP
].compute_all();
1133 T0
= ((eflags
^ (eflags
>> 4)) >> 7) & 1;
1136 void OPPROTO
op_setle_T0_cc(void)
1139 eflags
= cc_table
[CC_OP
].compute_all();
1140 T0
= (((eflags
^ (eflags
>> 4)) & 0x80) || (eflags
& CC_Z
)) != 0;
1143 void OPPROTO
op_xor_T0_1(void)
1148 void OPPROTO
op_set_cc_op(void)
1153 /* XXX: clear VIF/VIP in all ops ? */
1155 void OPPROTO
op_movl_eflags_T0(void)
1157 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
));
1160 void OPPROTO
op_movw_eflags_T0(void)
1162 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
) & 0xffff);
1165 void OPPROTO
op_movl_eflags_T0_io(void)
1167 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
));
1170 void OPPROTO
op_movw_eflags_T0_io(void)
1172 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
) & 0xffff);
1175 void OPPROTO
op_movl_eflags_T0_cpl0(void)
1177 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
| IOPL_MASK
));
1180 void OPPROTO
op_movw_eflags_T0_cpl0(void)
1182 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
| IOPL_MASK
) & 0xffff);
1186 /* vm86plus version */
1187 void OPPROTO
op_movw_eflags_T0_vm(void)
1191 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1192 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1193 /* we also update some system flags as in user mode */
1194 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK16
| VIF_MASK
)) |
1195 (eflags
& FL_UPDATE_MASK16
);
1196 if (eflags
& IF_MASK
) {
1197 env
->eflags
|= VIF_MASK
;
1198 if (env
->eflags
& VIP_MASK
) {
1200 raise_exception(EXCP0D_GPF
);
1206 void OPPROTO
op_movl_eflags_T0_vm(void)
1210 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1211 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1212 /* we also update some system flags as in user mode */
1213 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK32
| VIF_MASK
)) |
1214 (eflags
& FL_UPDATE_MASK32
);
1215 if (eflags
& IF_MASK
) {
1216 env
->eflags
|= VIF_MASK
;
1217 if (env
->eflags
& VIP_MASK
) {
1219 raise_exception(EXCP0D_GPF
);
1226 /* XXX: compute only O flag */
1227 void OPPROTO
op_movb_eflags_T0(void)
1230 of
= cc_table
[CC_OP
].compute_all() & CC_O
;
1231 CC_SRC
= (T0
& (CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
)) | of
;
1234 void OPPROTO
op_movl_T0_eflags(void)
1237 eflags
= cc_table
[CC_OP
].compute_all();
1238 eflags
|= (DF
& DF_MASK
);
1239 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
);
1243 /* vm86plus version */
1245 void OPPROTO
op_movl_T0_eflags_vm(void)
1248 eflags
= cc_table
[CC_OP
].compute_all();
1249 eflags
|= (DF
& DF_MASK
);
1250 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
| IF_MASK
);
1251 if (env
->eflags
& VIF_MASK
)
1257 void OPPROTO
op_cld(void)
1262 void OPPROTO
op_std(void)
1267 void OPPROTO
op_clc(void)
1270 eflags
= cc_table
[CC_OP
].compute_all();
1275 void OPPROTO
op_stc(void)
1278 eflags
= cc_table
[CC_OP
].compute_all();
1283 void OPPROTO
op_cmc(void)
1286 eflags
= cc_table
[CC_OP
].compute_all();
1291 void OPPROTO
op_salc(void)
1294 cf
= cc_table
[CC_OP
].compute_c();
1295 EAX
= (EAX
& ~0xff) | ((-cf
) & 0xff);
1298 static int compute_all_eflags(void)
1303 static int compute_c_eflags(void)
1305 return CC_SRC
& CC_C
;
1308 CCTable cc_table
[CC_OP_NB
] = {
1309 [CC_OP_DYNAMIC
] = { /* should never happen */ },
1311 [CC_OP_EFLAGS
] = { compute_all_eflags
, compute_c_eflags
},
1313 [CC_OP_MULB
] = { compute_all_mulb
, compute_c_mull
},
1314 [CC_OP_MULW
] = { compute_all_mulw
, compute_c_mull
},
1315 [CC_OP_MULL
] = { compute_all_mull
, compute_c_mull
},
1317 [CC_OP_ADDB
] = { compute_all_addb
, compute_c_addb
},
1318 [CC_OP_ADDW
] = { compute_all_addw
, compute_c_addw
},
1319 [CC_OP_ADDL
] = { compute_all_addl
, compute_c_addl
},
1321 [CC_OP_ADCB
] = { compute_all_adcb
, compute_c_adcb
},
1322 [CC_OP_ADCW
] = { compute_all_adcw
, compute_c_adcw
},
1323 [CC_OP_ADCL
] = { compute_all_adcl
, compute_c_adcl
},
1325 [CC_OP_SUBB
] = { compute_all_subb
, compute_c_subb
},
1326 [CC_OP_SUBW
] = { compute_all_subw
, compute_c_subw
},
1327 [CC_OP_SUBL
] = { compute_all_subl
, compute_c_subl
},
1329 [CC_OP_SBBB
] = { compute_all_sbbb
, compute_c_sbbb
},
1330 [CC_OP_SBBW
] = { compute_all_sbbw
, compute_c_sbbw
},
1331 [CC_OP_SBBL
] = { compute_all_sbbl
, compute_c_sbbl
},
1333 [CC_OP_LOGICB
] = { compute_all_logicb
, compute_c_logicb
},
1334 [CC_OP_LOGICW
] = { compute_all_logicw
, compute_c_logicw
},
1335 [CC_OP_LOGICL
] = { compute_all_logicl
, compute_c_logicl
},
1337 [CC_OP_INCB
] = { compute_all_incb
, compute_c_incl
},
1338 [CC_OP_INCW
] = { compute_all_incw
, compute_c_incl
},
1339 [CC_OP_INCL
] = { compute_all_incl
, compute_c_incl
},
1341 [CC_OP_DECB
] = { compute_all_decb
, compute_c_incl
},
1342 [CC_OP_DECW
] = { compute_all_decw
, compute_c_incl
},
1343 [CC_OP_DECL
] = { compute_all_decl
, compute_c_incl
},
1345 [CC_OP_SHLB
] = { compute_all_shlb
, compute_c_shlb
},
1346 [CC_OP_SHLW
] = { compute_all_shlw
, compute_c_shlw
},
1347 [CC_OP_SHLL
] = { compute_all_shll
, compute_c_shll
},
1349 [CC_OP_SARB
] = { compute_all_sarb
, compute_c_sarl
},
1350 [CC_OP_SARW
] = { compute_all_sarw
, compute_c_sarl
},
1351 [CC_OP_SARL
] = { compute_all_sarl
, compute_c_sarl
},
1354 /* floating point support. Some of the code for complicated x87
1355 functions comes from the LGPL'ed x86 emulator found in the Willows
1356 TWIN windows emulator. */
1358 #if defined(__powerpc__)
1359 extern CPU86_LDouble
copysign(CPU86_LDouble
, CPU86_LDouble
);
1361 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1362 double qemu_rint(double x
)
1364 double y
= 4503599627370496.0;
1375 #define rint qemu_rint
1380 void OPPROTO
op_flds_FT0_A0(void)
1382 #ifdef USE_FP_CONVERT
1383 FP_CONVERT
.i32
= ldl((void *)A0
);
1386 FT0
= ldfl((void *)A0
);
1390 void OPPROTO
op_fldl_FT0_A0(void)
1392 #ifdef USE_FP_CONVERT
1393 FP_CONVERT
.i64
= ldq((void *)A0
);
1396 FT0
= ldfq((void *)A0
);
1400 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1401 #ifdef USE_INT_TO_FLOAT_HELPERS
1403 void helper_fild_FT0_A0(void)
1405 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1408 void helper_fildl_FT0_A0(void)
1410 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1413 void helper_fildll_FT0_A0(void)
1415 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1418 void OPPROTO
op_fild_FT0_A0(void)
1420 helper_fild_FT0_A0();
1423 void OPPROTO
op_fildl_FT0_A0(void)
1425 helper_fildl_FT0_A0();
1428 void OPPROTO
op_fildll_FT0_A0(void)
1430 helper_fildll_FT0_A0();
1435 void OPPROTO
op_fild_FT0_A0(void)
1437 #ifdef USE_FP_CONVERT
1438 FP_CONVERT
.i32
= ldsw((void *)A0
);
1439 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1441 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1445 void OPPROTO
op_fildl_FT0_A0(void)
1447 #ifdef USE_FP_CONVERT
1448 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1449 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1451 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1455 void OPPROTO
op_fildll_FT0_A0(void)
1457 #ifdef USE_FP_CONVERT
1458 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1459 FT0
= (CPU86_LDouble
)FP_CONVERT
.i64
;
1461 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1468 void OPPROTO
op_flds_ST0_A0(void)
1471 new_fpstt
= (env
->fpstt
- 1) & 7;
1472 #ifdef USE_FP_CONVERT
1473 FP_CONVERT
.i32
= ldl((void *)A0
);
1474 env
->fpregs
[new_fpstt
] = FP_CONVERT
.f
;
1476 env
->fpregs
[new_fpstt
] = ldfl((void *)A0
);
1478 env
->fpstt
= new_fpstt
;
1479 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1482 void OPPROTO
op_fldl_ST0_A0(void)
1485 new_fpstt
= (env
->fpstt
- 1) & 7;
1486 #ifdef USE_FP_CONVERT
1487 FP_CONVERT
.i64
= ldq((void *)A0
);
1488 env
->fpregs
[new_fpstt
] = FP_CONVERT
.d
;
1490 env
->fpregs
[new_fpstt
] = ldfq((void *)A0
);
1492 env
->fpstt
= new_fpstt
;
1493 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1496 void OPPROTO
op_fldt_ST0_A0(void)
1498 helper_fldt_ST0_A0();
1501 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1502 #ifdef USE_INT_TO_FLOAT_HELPERS
1504 void helper_fild_ST0_A0(void)
1507 new_fpstt
= (env
->fpstt
- 1) & 7;
1508 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1509 env
->fpstt
= new_fpstt
;
1510 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1513 void helper_fildl_ST0_A0(void)
1516 new_fpstt
= (env
->fpstt
- 1) & 7;
1517 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1518 env
->fpstt
= new_fpstt
;
1519 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1522 void helper_fildll_ST0_A0(void)
1525 new_fpstt
= (env
->fpstt
- 1) & 7;
1526 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1527 env
->fpstt
= new_fpstt
;
1528 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1531 void OPPROTO
op_fild_ST0_A0(void)
1533 helper_fild_ST0_A0();
1536 void OPPROTO
op_fildl_ST0_A0(void)
1538 helper_fildl_ST0_A0();
1541 void OPPROTO
op_fildll_ST0_A0(void)
1543 helper_fildll_ST0_A0();
1548 void OPPROTO
op_fild_ST0_A0(void)
1551 new_fpstt
= (env
->fpstt
- 1) & 7;
1552 #ifdef USE_FP_CONVERT
1553 FP_CONVERT
.i32
= ldsw((void *)A0
);
1554 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1556 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1558 env
->fpstt
= new_fpstt
;
1559 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1562 void OPPROTO
op_fildl_ST0_A0(void)
1565 new_fpstt
= (env
->fpstt
- 1) & 7;
1566 #ifdef USE_FP_CONVERT
1567 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1568 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1570 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1572 env
->fpstt
= new_fpstt
;
1573 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1576 void OPPROTO
op_fildll_ST0_A0(void)
1579 new_fpstt
= (env
->fpstt
- 1) & 7;
1580 #ifdef USE_FP_CONVERT
1581 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1582 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i64
;
1584 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1586 env
->fpstt
= new_fpstt
;
1587 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1594 void OPPROTO
op_fsts_ST0_A0(void)
1596 #ifdef USE_FP_CONVERT
1597 FP_CONVERT
.f
= (float)ST0
;
1598 stfl((void *)A0
, FP_CONVERT
.f
);
1600 stfl((void *)A0
, (float)ST0
);
1604 void OPPROTO
op_fstl_ST0_A0(void)
1606 stfq((void *)A0
, (double)ST0
);
1609 void OPPROTO
op_fstt_ST0_A0(void)
1611 helper_fstt_ST0_A0();
1614 void OPPROTO
op_fist_ST0_A0(void)
1616 #if defined(__sparc__) && !defined(__sparc_v9__)
1617 register CPU86_LDouble d
asm("o0");
1625 if (val
!= (int16_t)val
)
1627 stw((void *)A0
, val
);
1630 void OPPROTO
op_fistl_ST0_A0(void)
1632 #if defined(__sparc__) && !defined(__sparc_v9__)
1633 register CPU86_LDouble d
asm("o0");
1641 stl((void *)A0
, val
);
1644 void OPPROTO
op_fistll_ST0_A0(void)
1646 #if defined(__sparc__) && !defined(__sparc_v9__)
1647 register CPU86_LDouble d
asm("o0");
1655 stq((void *)A0
, val
);
1658 void OPPROTO
op_fbld_ST0_A0(void)
1660 helper_fbld_ST0_A0();
1663 void OPPROTO
op_fbst_ST0_A0(void)
1665 helper_fbst_ST0_A0();
1670 void OPPROTO
op_fpush(void)
1675 void OPPROTO
op_fpop(void)
1680 void OPPROTO
op_fdecstp(void)
1682 env
->fpstt
= (env
->fpstt
- 1) & 7;
1683 env
->fpus
&= (~0x4700);
1686 void OPPROTO
op_fincstp(void)
1688 env
->fpstt
= (env
->fpstt
+ 1) & 7;
1689 env
->fpus
&= (~0x4700);
1692 void OPPROTO
op_fmov_ST0_FT0(void)
1697 void OPPROTO
op_fmov_FT0_STN(void)
1702 void OPPROTO
op_fmov_ST0_STN(void)
1707 void OPPROTO
op_fmov_STN_ST0(void)
1712 void OPPROTO
op_fxchg_ST0_STN(void)
1720 /* FPU operations */
1722 /* XXX: handle nans */
1723 void OPPROTO
op_fcom_ST0_FT0(void)
1725 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1727 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1728 else if (ST0
== FT0
)
1729 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1733 /* XXX: handle nans */
1734 void OPPROTO
op_fucom_ST0_FT0(void)
1736 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1738 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1739 else if (ST0
== FT0
)
1740 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1744 /* XXX: handle nans */
1745 void OPPROTO
op_fcomi_ST0_FT0(void)
1748 eflags
= cc_table
[CC_OP
].compute_all();
1749 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1752 else if (ST0
== FT0
)
1758 /* XXX: handle nans */
1759 void OPPROTO
op_fucomi_ST0_FT0(void)
1762 eflags
= cc_table
[CC_OP
].compute_all();
1763 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1766 else if (ST0
== FT0
)
1772 void OPPROTO
op_fcmov_ST0_STN_T0(void)
1780 void OPPROTO
op_fadd_ST0_FT0(void)
1785 void OPPROTO
op_fmul_ST0_FT0(void)
1790 void OPPROTO
op_fsub_ST0_FT0(void)
1795 void OPPROTO
op_fsubr_ST0_FT0(void)
1800 void OPPROTO
op_fdiv_ST0_FT0(void)
1805 void OPPROTO
op_fdivr_ST0_FT0(void)
1810 /* fp operations between STN and ST0 */
1812 void OPPROTO
op_fadd_STN_ST0(void)
1817 void OPPROTO
op_fmul_STN_ST0(void)
1822 void OPPROTO
op_fsub_STN_ST0(void)
1827 void OPPROTO
op_fsubr_STN_ST0(void)
1834 void OPPROTO
op_fdiv_STN_ST0(void)
1839 void OPPROTO
op_fdivr_STN_ST0(void)
1846 /* misc FPU operations */
1847 void OPPROTO
op_fchs_ST0(void)
1852 void OPPROTO
op_fabs_ST0(void)
1857 void OPPROTO
op_fxam_ST0(void)
1862 void OPPROTO
op_fld1_ST0(void)
1867 void OPPROTO
op_fldl2t_ST0(void)
1872 void OPPROTO
op_fldl2e_ST0(void)
1877 void OPPROTO
op_fldpi_ST0(void)
1882 void OPPROTO
op_fldlg2_ST0(void)
1887 void OPPROTO
op_fldln2_ST0(void)
1892 void OPPROTO
op_fldz_ST0(void)
1897 void OPPROTO
op_fldz_FT0(void)
1902 /* associated heplers to reduce generated code length and to simplify
1903 relocation (FP constants are usually stored in .rodata section) */
1905 void OPPROTO
op_f2xm1(void)
1910 void OPPROTO
op_fyl2x(void)
1915 void OPPROTO
op_fptan(void)
1920 void OPPROTO
op_fpatan(void)
1925 void OPPROTO
op_fxtract(void)
1930 void OPPROTO
op_fprem1(void)
1936 void OPPROTO
op_fprem(void)
1941 void OPPROTO
op_fyl2xp1(void)
1946 void OPPROTO
op_fsqrt(void)
1951 void OPPROTO
op_fsincos(void)
1956 void OPPROTO
op_frndint(void)
1961 void OPPROTO
op_fscale(void)
1966 void OPPROTO
op_fsin(void)
1971 void OPPROTO
op_fcos(void)
1976 void OPPROTO
op_fnstsw_A0(void)
1979 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1980 stw((void *)A0
, fpus
);
1983 void OPPROTO
op_fnstsw_EAX(void)
1986 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1987 EAX
= (EAX
& 0xffff0000) | fpus
;
1990 void OPPROTO
op_fnstcw_A0(void)
1992 stw((void *)A0
, env
->fpuc
);
1995 void OPPROTO
op_fldcw_A0(void)
1998 env
->fpuc
= lduw((void *)A0
);
1999 /* set rounding mode */
2000 switch(env
->fpuc
& RC_MASK
) {
2003 rnd_type
= FE_TONEAREST
;
2006 rnd_type
= FE_DOWNWARD
;
2009 rnd_type
= FE_UPWARD
;
2012 rnd_type
= FE_TOWARDZERO
;
2015 fesetround(rnd_type
);
2018 void OPPROTO
op_fclex(void)
2020 env
->fpus
&= 0x7f00;
2023 void OPPROTO
op_fninit(void)
2038 void OPPROTO
op_fnstenv_A0(void)
2040 helper_fstenv((uint8_t *)A0
, PARAM1
);
2043 void OPPROTO
op_fldenv_A0(void)
2045 helper_fldenv((uint8_t *)A0
, PARAM1
);
2048 void OPPROTO
op_fnsave_A0(void)
2050 helper_fsave((uint8_t *)A0
, PARAM1
);
2053 void OPPROTO
op_frstor_A0(void)
2055 helper_frstor((uint8_t *)A0
, PARAM1
);
2058 /* threading support */
2059 void OPPROTO
op_lock(void)
2064 void OPPROTO
op_unlock(void)